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1 | 2f31098c | Iustin Pop | #
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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | 397693d3 | Iustin Pop | # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | 360b0dc2 | Iustin Pop | """Functions used by the node daemon
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23 | 360b0dc2 | Iustin Pop |
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24 | 360b0dc2 | Iustin Pop | @var _ALLOWED_UPLOAD_FILES: denotes which files are accepted in
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25 | 360b0dc2 | Iustin Pop | the L{UploadFile} function
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26 | 714ea7ca | Iustin Pop | @var _ALLOWED_CLEAN_DIRS: denotes which directories are accepted
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27 | 714ea7ca | Iustin Pop | in the L{_CleanDirectory} function
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28 | 360b0dc2 | Iustin Pop |
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29 | 360b0dc2 | Iustin Pop | """
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30 | a8083063 | Iustin Pop | |
31 | b459a848 | Andrea Spadaccini | # pylint: disable=E1103
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32 | 6c881c52 | Iustin Pop | |
33 | 6c881c52 | Iustin Pop | # E1103: %s %r has no %r member (but some types could not be
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34 | 6c881c52 | Iustin Pop | # inferred), because the _TryOSFromDisk returns either (True, os_obj)
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35 | 6c881c52 | Iustin Pop | # or (False, "string") which confuses pylint
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36 | 6c881c52 | Iustin Pop | |
37 | a8083063 | Iustin Pop | |
38 | a8083063 | Iustin Pop | import os |
39 | a8083063 | Iustin Pop | import os.path |
40 | a8083063 | Iustin Pop | import shutil |
41 | a8083063 | Iustin Pop | import time |
42 | a8083063 | Iustin Pop | import stat |
43 | a8083063 | Iustin Pop | import errno |
44 | a8083063 | Iustin Pop | import re |
45 | b544cfe0 | Iustin Pop | import random |
46 | 18682bca | Iustin Pop | import logging |
47 | 3b9e6a30 | Iustin Pop | import tempfile |
48 | 12bce260 | Michael Hanselmann | import zlib |
49 | 12bce260 | Michael Hanselmann | import base64 |
50 | f81c4737 | Michael Hanselmann | import signal |
51 | a8083063 | Iustin Pop | |
52 | a8083063 | Iustin Pop | from ganeti import errors |
53 | a8083063 | Iustin Pop | from ganeti import utils |
54 | a8083063 | Iustin Pop | from ganeti import ssh |
55 | a8083063 | Iustin Pop | from ganeti import hypervisor |
56 | a8083063 | Iustin Pop | from ganeti import constants |
57 | a8083063 | Iustin Pop | from ganeti import bdev |
58 | a8083063 | Iustin Pop | from ganeti import objects |
59 | 880478f8 | Iustin Pop | from ganeti import ssconf |
60 | 1651d116 | Michael Hanselmann | from ganeti import serializer |
61 | a744b676 | Manuel Franceschini | from ganeti import netutils |
62 | 82b22e19 | René Nussbaumer | from ganeti import runtime |
63 | 0fa481f5 | Andrea Spadaccini | from ganeti import mcpu |
64 | 3ccd3243 | Andrea Spadaccini | from ganeti import compat |
65 | a8083063 | Iustin Pop | |
66 | a8083063 | Iustin Pop | |
67 | 13998ef2 | Michael Hanselmann | _BOOT_ID_PATH = "/proc/sys/kernel/random/boot_id"
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68 | 714ea7ca | Iustin Pop | _ALLOWED_CLEAN_DIRS = frozenset([
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69 | 714ea7ca | Iustin Pop | constants.DATA_DIR, |
70 | 714ea7ca | Iustin Pop | constants.JOB_QUEUE_ARCHIVE_DIR, |
71 | 714ea7ca | Iustin Pop | constants.QUEUE_DIR, |
72 | f942a838 | Michael Hanselmann | constants.CRYPTO_KEYS_DIR, |
73 | 714ea7ca | Iustin Pop | ]) |
74 | f942a838 | Michael Hanselmann | _MAX_SSL_CERT_VALIDITY = 7 * 24 * 60 * 60 |
75 | f942a838 | Michael Hanselmann | _X509_KEY_FILE = "key"
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76 | f942a838 | Michael Hanselmann | _X509_CERT_FILE = "cert"
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77 | 1651d116 | Michael Hanselmann | _IES_STATUS_FILE = "status"
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78 | 1651d116 | Michael Hanselmann | _IES_PID_FILE = "pid"
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79 | 1651d116 | Michael Hanselmann | _IES_CA_FILE = "ca"
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80 | 13998ef2 | Michael Hanselmann | |
81 | 0b5303da | Iustin Pop | #: Valid LVS output line regex
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82 | 84d7e26b | Dmitry Chernyak | _LVSLINE_REGEX = re.compile("^ *([^|]+)\|([^|]+)\|([0-9.]+)\|([^|]{6})\|?$")
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83 | 0b5303da | Iustin Pop | |
84 | 702eff21 | Andrea Spadaccini | # Actions for the master setup script
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85 | 702eff21 | Andrea Spadaccini | _MASTER_START = "start"
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86 | 702eff21 | Andrea Spadaccini | _MASTER_STOP = "stop"
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87 | 702eff21 | Andrea Spadaccini | |
88 | 13998ef2 | Michael Hanselmann | |
89 | 2cc6781a | Iustin Pop | class RPCFail(Exception): |
90 | 2cc6781a | Iustin Pop | """Class denoting RPC failure.
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91 | 2cc6781a | Iustin Pop |
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92 | 2cc6781a | Iustin Pop | Its argument is the error message.
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93 | 2cc6781a | Iustin Pop |
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94 | 2cc6781a | Iustin Pop | """
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95 | 2cc6781a | Iustin Pop | |
96 | 13998ef2 | Michael Hanselmann | |
97 | 2cc6781a | Iustin Pop | def _Fail(msg, *args, **kwargs): |
98 | 2cc6781a | Iustin Pop | """Log an error and the raise an RPCFail exception.
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99 | 2cc6781a | Iustin Pop |
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100 | 2cc6781a | Iustin Pop | This exception is then handled specially in the ganeti daemon and
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101 | 2cc6781a | Iustin Pop | turned into a 'failed' return type. As such, this function is a
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102 | 2cc6781a | Iustin Pop | useful shortcut for logging the error and returning it to the master
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103 | 2cc6781a | Iustin Pop | daemon.
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104 | 2cc6781a | Iustin Pop |
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105 | 2cc6781a | Iustin Pop | @type msg: string
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106 | 2cc6781a | Iustin Pop | @param msg: the text of the exception
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107 | 2cc6781a | Iustin Pop | @raise RPCFail
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108 | 2cc6781a | Iustin Pop |
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109 | 2cc6781a | Iustin Pop | """
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110 | 2cc6781a | Iustin Pop | if args:
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111 | 2cc6781a | Iustin Pop | msg = msg % args |
112 | afdc3985 | Iustin Pop | if "log" not in kwargs or kwargs["log"]: # if we should log this error |
113 | afdc3985 | Iustin Pop | if "exc" in kwargs and kwargs["exc"]: |
114 | afdc3985 | Iustin Pop | logging.exception(msg) |
115 | afdc3985 | Iustin Pop | else:
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116 | afdc3985 | Iustin Pop | logging.error(msg) |
117 | 2cc6781a | Iustin Pop | raise RPCFail(msg)
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118 | 2cc6781a | Iustin Pop | |
119 | 2cc6781a | Iustin Pop | |
120 | c657dcc9 | Michael Hanselmann | def _GetConfig(): |
121 | 93384844 | Iustin Pop | """Simple wrapper to return a SimpleStore.
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122 | 10c2650b | Iustin Pop |
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123 | 93384844 | Iustin Pop | @rtype: L{ssconf.SimpleStore}
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124 | 93384844 | Iustin Pop | @return: a SimpleStore instance
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125 | 10c2650b | Iustin Pop |
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126 | 10c2650b | Iustin Pop | """
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127 | 93384844 | Iustin Pop | return ssconf.SimpleStore()
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128 | c657dcc9 | Michael Hanselmann | |
129 | c657dcc9 | Michael Hanselmann | |
130 | 62c9ec92 | Iustin Pop | def _GetSshRunner(cluster_name): |
131 | 10c2650b | Iustin Pop | """Simple wrapper to return an SshRunner.
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132 | 10c2650b | Iustin Pop |
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133 | 10c2650b | Iustin Pop | @type cluster_name: str
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134 | 10c2650b | Iustin Pop | @param cluster_name: the cluster name, which is needed
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135 | 10c2650b | Iustin Pop | by the SshRunner constructor
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136 | 10c2650b | Iustin Pop | @rtype: L{ssh.SshRunner}
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137 | 10c2650b | Iustin Pop | @return: an SshRunner instance
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138 | 10c2650b | Iustin Pop |
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139 | 10c2650b | Iustin Pop | """
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140 | 62c9ec92 | Iustin Pop | return ssh.SshRunner(cluster_name)
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141 | c92b310a | Michael Hanselmann | |
142 | c92b310a | Michael Hanselmann | |
143 | 12bce260 | Michael Hanselmann | def _Decompress(data): |
144 | 12bce260 | Michael Hanselmann | """Unpacks data compressed by the RPC client.
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145 | 12bce260 | Michael Hanselmann |
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146 | 12bce260 | Michael Hanselmann | @type data: list or tuple
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147 | 12bce260 | Michael Hanselmann | @param data: Data sent by RPC client
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148 | 12bce260 | Michael Hanselmann | @rtype: str
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149 | 12bce260 | Michael Hanselmann | @return: Decompressed data
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150 | 12bce260 | Michael Hanselmann |
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151 | 12bce260 | Michael Hanselmann | """
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152 | 52e2f66e | Michael Hanselmann | assert isinstance(data, (list, tuple)) |
153 | 12bce260 | Michael Hanselmann | assert len(data) == 2 |
154 | 12bce260 | Michael Hanselmann | (encoding, content) = data |
155 | 12bce260 | Michael Hanselmann | if encoding == constants.RPC_ENCODING_NONE:
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156 | 12bce260 | Michael Hanselmann | return content
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157 | 12bce260 | Michael Hanselmann | elif encoding == constants.RPC_ENCODING_ZLIB_BASE64:
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158 | 12bce260 | Michael Hanselmann | return zlib.decompress(base64.b64decode(content))
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159 | 12bce260 | Michael Hanselmann | else:
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160 | 12bce260 | Michael Hanselmann | raise AssertionError("Unknown data encoding") |
161 | 12bce260 | Michael Hanselmann | |
162 | 12bce260 | Michael Hanselmann | |
163 | 3bc6be5c | Iustin Pop | def _CleanDirectory(path, exclude=None): |
164 | 76ab5558 | Michael Hanselmann | """Removes all regular files in a directory.
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165 | 76ab5558 | Michael Hanselmann |
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166 | 10c2650b | Iustin Pop | @type path: str
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167 | 10c2650b | Iustin Pop | @param path: the directory to clean
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168 | 76ab5558 | Michael Hanselmann | @type exclude: list
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169 | 10c2650b | Iustin Pop | @param exclude: list of files to be excluded, defaults
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170 | 10c2650b | Iustin Pop | to the empty list
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171 | 76ab5558 | Michael Hanselmann |
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172 | 76ab5558 | Michael Hanselmann | """
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173 | 714ea7ca | Iustin Pop | if path not in _ALLOWED_CLEAN_DIRS: |
174 | 714ea7ca | Iustin Pop | _Fail("Path passed to _CleanDirectory not in allowed clean targets: '%s'",
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175 | 714ea7ca | Iustin Pop | path) |
176 | 714ea7ca | Iustin Pop | |
177 | 3956cee1 | Michael Hanselmann | if not os.path.isdir(path): |
178 | 3956cee1 | Michael Hanselmann | return
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179 | 3bc6be5c | Iustin Pop | if exclude is None: |
180 | 3bc6be5c | Iustin Pop | exclude = [] |
181 | 3bc6be5c | Iustin Pop | else:
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182 | 3bc6be5c | Iustin Pop | # Normalize excluded paths
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183 | 3bc6be5c | Iustin Pop | exclude = [os.path.normpath(i) for i in exclude] |
184 | 76ab5558 | Michael Hanselmann | |
185 | 3956cee1 | Michael Hanselmann | for rel_name in utils.ListVisibleFiles(path): |
186 | c4feafe8 | Iustin Pop | full_name = utils.PathJoin(path, rel_name) |
187 | 76ab5558 | Michael Hanselmann | if full_name in exclude: |
188 | 76ab5558 | Michael Hanselmann | continue
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189 | 3956cee1 | Michael Hanselmann | if os.path.isfile(full_name) and not os.path.islink(full_name): |
190 | 3956cee1 | Michael Hanselmann | utils.RemoveFile(full_name) |
191 | 3956cee1 | Michael Hanselmann | |
192 | 3956cee1 | Michael Hanselmann | |
193 | 360b0dc2 | Iustin Pop | def _BuildUploadFileList(): |
194 | 360b0dc2 | Iustin Pop | """Build the list of allowed upload files.
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195 | 360b0dc2 | Iustin Pop |
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196 | 360b0dc2 | Iustin Pop | This is abstracted so that it's built only once at module import time.
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197 | 360b0dc2 | Iustin Pop |
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198 | 360b0dc2 | Iustin Pop | """
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199 | b397a7d2 | Iustin Pop | allowed_files = set([
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200 | b397a7d2 | Iustin Pop | constants.CLUSTER_CONF_FILE, |
201 | b397a7d2 | Iustin Pop | constants.ETC_HOSTS, |
202 | b397a7d2 | Iustin Pop | constants.SSH_KNOWN_HOSTS_FILE, |
203 | b397a7d2 | Iustin Pop | constants.VNC_PASSWORD_FILE, |
204 | b397a7d2 | Iustin Pop | constants.RAPI_CERT_FILE, |
205 | bfe86c76 | Andrea Spadaccini | constants.SPICE_CERT_FILE, |
206 | bfe86c76 | Andrea Spadaccini | constants.SPICE_CACERT_FILE, |
207 | b397a7d2 | Iustin Pop | constants.RAPI_USERS_FILE, |
208 | 6b7d5878 | Michael Hanselmann | constants.CONFD_HMAC_KEY, |
209 | ff89a747 | Michael Hanselmann | constants.CLUSTER_DOMAIN_SECRET_FILE, |
210 | b397a7d2 | Iustin Pop | ]) |
211 | b397a7d2 | Iustin Pop | |
212 | b397a7d2 | Iustin Pop | for hv_name in constants.HYPER_TYPES: |
213 | e5a45a16 | Iustin Pop | hv_class = hypervisor.GetHypervisorClass(hv_name) |
214 | 69ab2e12 | Guido Trotter | allowed_files.update(hv_class.GetAncillaryFiles()[0])
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215 | b397a7d2 | Iustin Pop | |
216 | b397a7d2 | Iustin Pop | return frozenset(allowed_files) |
217 | 360b0dc2 | Iustin Pop | |
218 | 360b0dc2 | Iustin Pop | |
219 | 360b0dc2 | Iustin Pop | _ALLOWED_UPLOAD_FILES = _BuildUploadFileList() |
220 | 360b0dc2 | Iustin Pop | |
221 | 360b0dc2 | Iustin Pop | |
222 | 1bc59f76 | Michael Hanselmann | def JobQueuePurge(): |
223 | 10c2650b | Iustin Pop | """Removes job queue files and archived jobs.
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224 | 10c2650b | Iustin Pop |
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225 | c8457ce7 | Iustin Pop | @rtype: tuple
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226 | c8457ce7 | Iustin Pop | @return: True, None
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227 | 24fc781f | Michael Hanselmann |
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228 | 24fc781f | Michael Hanselmann | """
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229 | 1bc59f76 | Michael Hanselmann | _CleanDirectory(constants.QUEUE_DIR, exclude=[constants.JOB_QUEUE_LOCK_FILE]) |
230 | 24fc781f | Michael Hanselmann | _CleanDirectory(constants.JOB_QUEUE_ARCHIVE_DIR) |
231 | 24fc781f | Michael Hanselmann | |
232 | 24fc781f | Michael Hanselmann | |
233 | bd1e4562 | Iustin Pop | def GetMasterInfo(): |
234 | bd1e4562 | Iustin Pop | """Returns master information.
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235 | bd1e4562 | Iustin Pop |
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236 | bd1e4562 | Iustin Pop | This is an utility function to compute master information, either
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237 | bd1e4562 | Iustin Pop | for consumption here or from the node daemon.
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238 | bd1e4562 | Iustin Pop |
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239 | bd1e4562 | Iustin Pop | @rtype: tuple
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240 | 909b3a0e | Andrea Spadaccini | @return: master_netdev, master_ip, master_name, primary_ip_family,
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241 | 909b3a0e | Andrea Spadaccini | master_netmask
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242 | 2a52a064 | Iustin Pop | @raise RPCFail: in case of errors
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243 | b1b6ea87 | Iustin Pop |
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244 | b1b6ea87 | Iustin Pop | """
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245 | b1b6ea87 | Iustin Pop | try:
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246 | c657dcc9 | Michael Hanselmann | cfg = _GetConfig() |
247 | c657dcc9 | Michael Hanselmann | master_netdev = cfg.GetMasterNetdev() |
248 | c657dcc9 | Michael Hanselmann | master_ip = cfg.GetMasterIP() |
249 | 5a8648eb | Andrea Spadaccini | master_netmask = cfg.GetMasterNetmask() |
250 | c657dcc9 | Michael Hanselmann | master_node = cfg.GetMasterNode() |
251 | d8e0caa6 | Manuel Franceschini | primary_ip_family = cfg.GetPrimaryIPFamily() |
252 | b1b6ea87 | Iustin Pop | except errors.ConfigurationError, err:
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253 | 29921401 | Iustin Pop | _Fail("Cluster configuration incomplete: %s", err, exc=True) |
254 | 909b3a0e | Andrea Spadaccini | return (master_netdev, master_ip, master_node, primary_ip_family,
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255 | 909b3a0e | Andrea Spadaccini | master_netmask) |
256 | b1b6ea87 | Iustin Pop | |
257 | b1b6ea87 | Iustin Pop | |
258 | 0fa481f5 | Andrea Spadaccini | def RunLocalHooks(hook_opcode, hooks_path, env_builder_fn): |
259 | 0fa481f5 | Andrea Spadaccini | """Decorator that runs hooks before and after the decorated function.
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260 | 0fa481f5 | Andrea Spadaccini |
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261 | 0fa481f5 | Andrea Spadaccini | @type hook_opcode: string
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262 | 0fa481f5 | Andrea Spadaccini | @param hook_opcode: opcode of the hook
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263 | 0fa481f5 | Andrea Spadaccini | @type hooks_path: string
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264 | 0fa481f5 | Andrea Spadaccini | @param hooks_path: path of the hooks
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265 | 0fa481f5 | Andrea Spadaccini | @type env_builder_fn: function
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266 | 0fa481f5 | Andrea Spadaccini | @param env_builder_fn: function that returns a dictionary containing the
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267 | 3ccd3243 | Andrea Spadaccini | environment variables for the hooks. Will get all the parameters of the
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268 | 3ccd3243 | Andrea Spadaccini | decorated function.
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269 | 0fa481f5 | Andrea Spadaccini | @raise RPCFail: in case of pre-hook failure
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270 | 0fa481f5 | Andrea Spadaccini |
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271 | 0fa481f5 | Andrea Spadaccini | """
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272 | 0fa481f5 | Andrea Spadaccini | def decorator(fn): |
273 | 0fa481f5 | Andrea Spadaccini | def wrapper(*args, **kwargs): |
274 | 0fa481f5 | Andrea Spadaccini | _, myself = ssconf.GetMasterAndMyself() |
275 | 0fa481f5 | Andrea Spadaccini | nodes = ([myself], [myself]) # these hooks run locally
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276 | 0fa481f5 | Andrea Spadaccini | |
277 | 3ccd3243 | Andrea Spadaccini | env_fn = compat.partial(env_builder_fn, *args, **kwargs) |
278 | 3ccd3243 | Andrea Spadaccini | |
279 | 0fa481f5 | Andrea Spadaccini | cfg = _GetConfig() |
280 | 0fa481f5 | Andrea Spadaccini | hr = HooksRunner() |
281 | 0fa481f5 | Andrea Spadaccini | hm = mcpu.HooksMaster(hook_opcode, hooks_path, nodes, hr.RunLocalHooks, |
282 | 3ccd3243 | Andrea Spadaccini | None, env_fn, logging.warning, cfg.GetClusterName(),
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283 | 3ccd3243 | Andrea Spadaccini | cfg.GetMasterNode()) |
284 | 0fa481f5 | Andrea Spadaccini | |
285 | 0fa481f5 | Andrea Spadaccini | hm.RunPhase(constants.HOOKS_PHASE_PRE) |
286 | 0fa481f5 | Andrea Spadaccini | result = fn(*args, **kwargs) |
287 | 0fa481f5 | Andrea Spadaccini | hm.RunPhase(constants.HOOKS_PHASE_POST) |
288 | 0fa481f5 | Andrea Spadaccini | |
289 | 0fa481f5 | Andrea Spadaccini | return result
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290 | 0fa481f5 | Andrea Spadaccini | return wrapper
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291 | 0fa481f5 | Andrea Spadaccini | return decorator
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292 | 0fa481f5 | Andrea Spadaccini | |
293 | 0fa481f5 | Andrea Spadaccini | |
294 | 57c7bc57 | Andrea Spadaccini | def _BuildMasterIpEnv(master_params, use_external_mip_script=None): |
295 | 2d88fdd3 | Andrea Spadaccini | """Builds environment variables for master IP hooks.
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296 | 2d88fdd3 | Andrea Spadaccini |
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297 | 3ccd3243 | Andrea Spadaccini | @type master_params: L{objects.MasterNetworkParameters}
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298 | 3ccd3243 | Andrea Spadaccini | @param master_params: network parameters of the master
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299 | 57c7bc57 | Andrea Spadaccini | @type use_external_mip_script: boolean
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300 | 57c7bc57 | Andrea Spadaccini | @param use_external_mip_script: whether to use an external master IP
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301 | 57c7bc57 | Andrea Spadaccini | address setup script (unused, but necessary per the implementation of the
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302 | 57c7bc57 | Andrea Spadaccini | _RunLocalHooks decorator)
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303 | 3ccd3243 | Andrea Spadaccini |
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304 | 2d88fdd3 | Andrea Spadaccini | """
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305 | 57c7bc57 | Andrea Spadaccini | # pylint: disable=W0613
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306 | 3ccd3243 | Andrea Spadaccini | ver = netutils.IPAddress.GetVersionFromAddressFamily(master_params.ip_family) |
307 | 2d88fdd3 | Andrea Spadaccini | env = { |
308 | 3ccd3243 | Andrea Spadaccini | "MASTER_NETDEV": master_params.netdev,
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309 | 3ccd3243 | Andrea Spadaccini | "MASTER_IP": master_params.ip,
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310 | 702eff21 | Andrea Spadaccini | "MASTER_NETMASK": str(master_params.netmask), |
311 | 3ccd3243 | Andrea Spadaccini | "CLUSTER_IP_VERSION": str(ver), |
312 | 2d88fdd3 | Andrea Spadaccini | } |
313 | 2d88fdd3 | Andrea Spadaccini | |
314 | 2d88fdd3 | Andrea Spadaccini | return env
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315 | 2d88fdd3 | Andrea Spadaccini | |
316 | 2d88fdd3 | Andrea Spadaccini | |
317 | 702eff21 | Andrea Spadaccini | def _RunMasterSetupScript(master_params, action, use_external_mip_script): |
318 | 702eff21 | Andrea Spadaccini | """Execute the master IP address setup script.
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319 | 702eff21 | Andrea Spadaccini |
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320 | 702eff21 | Andrea Spadaccini | @type master_params: L{objects.MasterNetworkParameters}
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321 | 702eff21 | Andrea Spadaccini | @param master_params: network parameters of the master
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322 | 702eff21 | Andrea Spadaccini | @type action: string
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323 | 702eff21 | Andrea Spadaccini | @param action: action to pass to the script. Must be one of
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324 | 702eff21 | Andrea Spadaccini | L{backend._MASTER_START} or L{backend._MASTER_STOP}
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325 | 702eff21 | Andrea Spadaccini | @type use_external_mip_script: boolean
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326 | 702eff21 | Andrea Spadaccini | @param use_external_mip_script: whether to use an external master IP
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327 | 702eff21 | Andrea Spadaccini | address setup script
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328 | 702eff21 | Andrea Spadaccini | @raise backend.RPCFail: if there are errors during the execution of the
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329 | 702eff21 | Andrea Spadaccini | script
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330 | 702eff21 | Andrea Spadaccini |
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331 | 702eff21 | Andrea Spadaccini | """
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332 | 702eff21 | Andrea Spadaccini | env = _BuildMasterIpEnv(master_params) |
333 | 702eff21 | Andrea Spadaccini | |
334 | 702eff21 | Andrea Spadaccini | if use_external_mip_script:
|
335 | 702eff21 | Andrea Spadaccini | setup_script = constants.EXTERNAL_MASTER_SETUP_SCRIPT |
336 | 702eff21 | Andrea Spadaccini | else:
|
337 | 702eff21 | Andrea Spadaccini | setup_script = constants.DEFAULT_MASTER_SETUP_SCRIPT |
338 | 702eff21 | Andrea Spadaccini | |
339 | 702eff21 | Andrea Spadaccini | result = utils.RunCmd([setup_script, action], env=env, reset_env=True)
|
340 | 702eff21 | Andrea Spadaccini | |
341 | 702eff21 | Andrea Spadaccini | if result.failed:
|
342 | 702eff21 | Andrea Spadaccini | _Fail("Failed to %s the master IP. Script return value: %s" %
|
343 | 702eff21 | Andrea Spadaccini | (action, result.exit_code), log=True)
|
344 | 702eff21 | Andrea Spadaccini | |
345 | 702eff21 | Andrea Spadaccini | |
346 | 2d88fdd3 | Andrea Spadaccini | @RunLocalHooks(constants.FAKE_OP_MASTER_TURNUP, "master-ip-turnup", |
347 | 3a3e4f1e | Andrea Spadaccini | _BuildMasterIpEnv) |
348 | 57c7bc57 | Andrea Spadaccini | def ActivateMasterIp(master_params, use_external_mip_script): |
349 | fb460cf7 | Andrea Spadaccini | """Activate the IP address of the master daemon.
|
350 | fb460cf7 | Andrea Spadaccini |
|
351 | c79198a0 | Andrea Spadaccini | @type master_params: L{objects.MasterNetworkParameters}
|
352 | c79198a0 | Andrea Spadaccini | @param master_params: network parameters of the master
|
353 | 57c7bc57 | Andrea Spadaccini | @type use_external_mip_script: boolean
|
354 | 57c7bc57 | Andrea Spadaccini | @param use_external_mip_script: whether to use an external master IP
|
355 | 57c7bc57 | Andrea Spadaccini | address setup script
|
356 | 702eff21 | Andrea Spadaccini | @raise RPCFail: in case of errors during the IP startup
|
357 | 8da2bd43 | Andrea Spadaccini |
|
358 | fb460cf7 | Andrea Spadaccini | """
|
359 | 702eff21 | Andrea Spadaccini | _RunMasterSetupScript(master_params, _MASTER_START, |
360 | 702eff21 | Andrea Spadaccini | use_external_mip_script) |
361 | fb460cf7 | Andrea Spadaccini | |
362 | fb460cf7 | Andrea Spadaccini | |
363 | fb460cf7 | Andrea Spadaccini | def StartMasterDaemons(no_voting): |
364 | a8083063 | Iustin Pop | """Activate local node as master node.
|
365 | a8083063 | Iustin Pop |
|
366 | fb460cf7 | Andrea Spadaccini | The function will start the master daemons (ganeti-masterd and ganeti-rapi).
|
367 | 10c2650b | Iustin Pop |
|
368 | 3583908a | Guido Trotter | @type no_voting: boolean
|
369 | 3583908a | Guido Trotter | @param no_voting: whether to start ganeti-masterd without a node vote
|
370 | fb460cf7 | Andrea Spadaccini | but still non-interactively
|
371 | 10c2650b | Iustin Pop | @rtype: None
|
372 | a8083063 | Iustin Pop |
|
373 | a8083063 | Iustin Pop | """
|
374 | a8083063 | Iustin Pop | |
375 | fb460cf7 | Andrea Spadaccini | if no_voting:
|
376 | fb460cf7 | Andrea Spadaccini | masterd_args = "--no-voting --yes-do-it"
|
377 | fb460cf7 | Andrea Spadaccini | else:
|
378 | fb460cf7 | Andrea Spadaccini | masterd_args = ""
|
379 | f154a7a3 | Michael Hanselmann | |
380 | fb460cf7 | Andrea Spadaccini | env = { |
381 | fb460cf7 | Andrea Spadaccini | "EXTRA_MASTERD_ARGS": masterd_args,
|
382 | fb460cf7 | Andrea Spadaccini | } |
383 | fb460cf7 | Andrea Spadaccini | |
384 | fb460cf7 | Andrea Spadaccini | result = utils.RunCmd([constants.DAEMON_UTIL, "start-master"], env=env)
|
385 | fb460cf7 | Andrea Spadaccini | if result.failed:
|
386 | fb460cf7 | Andrea Spadaccini | msg = "Can't start Ganeti master: %s" % result.output
|
387 | fb460cf7 | Andrea Spadaccini | logging.error(msg) |
388 | fb460cf7 | Andrea Spadaccini | _Fail(msg) |
389 | f154a7a3 | Michael Hanselmann | |
390 | fb460cf7 | Andrea Spadaccini | |
391 | 2d88fdd3 | Andrea Spadaccini | @RunLocalHooks(constants.FAKE_OP_MASTER_TURNDOWN, "master-ip-turndown", |
392 | 3a3e4f1e | Andrea Spadaccini | _BuildMasterIpEnv) |
393 | 57c7bc57 | Andrea Spadaccini | def DeactivateMasterIp(master_params, use_external_mip_script): |
394 | fb460cf7 | Andrea Spadaccini | """Deactivate the master IP on this node.
|
395 | a8083063 | Iustin Pop |
|
396 | c79198a0 | Andrea Spadaccini | @type master_params: L{objects.MasterNetworkParameters}
|
397 | c79198a0 | Andrea Spadaccini | @param master_params: network parameters of the master
|
398 | 57c7bc57 | Andrea Spadaccini | @type use_external_mip_script: boolean
|
399 | 57c7bc57 | Andrea Spadaccini | @param use_external_mip_script: whether to use an external master IP
|
400 | 57c7bc57 | Andrea Spadaccini | address setup script
|
401 | 702eff21 | Andrea Spadaccini | @raise RPCFail: in case of errors during the IP turndown
|
402 | 96e0d5cc | Andrea Spadaccini |
|
403 | a8083063 | Iustin Pop | """
|
404 | 702eff21 | Andrea Spadaccini | _RunMasterSetupScript(master_params, _MASTER_STOP, |
405 | 702eff21 | Andrea Spadaccini | use_external_mip_script) |
406 | b1b6ea87 | Iustin Pop | |
407 | fb460cf7 | Andrea Spadaccini | |
408 | fb460cf7 | Andrea Spadaccini | def StopMasterDaemons(): |
409 | fb460cf7 | Andrea Spadaccini | """Stop the master daemons on this node.
|
410 | fb460cf7 | Andrea Spadaccini |
|
411 | fb460cf7 | Andrea Spadaccini | Stop the master daemons (ganeti-masterd and ganeti-rapi) on this node.
|
412 | fb460cf7 | Andrea Spadaccini |
|
413 | fb460cf7 | Andrea Spadaccini | @rtype: None
|
414 | fb460cf7 | Andrea Spadaccini |
|
415 | fb460cf7 | Andrea Spadaccini | """
|
416 | fb460cf7 | Andrea Spadaccini | # TODO: log and report back to the caller the error failures; we
|
417 | fb460cf7 | Andrea Spadaccini | # need to decide in which case we fail the RPC for this
|
418 | fb460cf7 | Andrea Spadaccini | |
419 | fb460cf7 | Andrea Spadaccini | result = utils.RunCmd([constants.DAEMON_UTIL, "stop-master"])
|
420 | fb460cf7 | Andrea Spadaccini | if result.failed:
|
421 | fb460cf7 | Andrea Spadaccini | logging.error("Could not stop Ganeti master, command %s had exitcode %s"
|
422 | fb460cf7 | Andrea Spadaccini | " and error %s",
|
423 | fb460cf7 | Andrea Spadaccini | result.cmd, result.exit_code, result.output) |
424 | a8083063 | Iustin Pop | |
425 | a8083063 | Iustin Pop | |
426 | 41e079ce | Andrea Spadaccini | def ChangeMasterNetmask(old_netmask, netmask, master_ip, master_netdev): |
427 | 5a8648eb | Andrea Spadaccini | """Change the netmask of the master IP.
|
428 | 5a8648eb | Andrea Spadaccini |
|
429 | 41e079ce | Andrea Spadaccini | @param old_netmask: the old value of the netmask
|
430 | 41e079ce | Andrea Spadaccini | @param netmask: the new value of the netmask
|
431 | 41e079ce | Andrea Spadaccini | @param master_ip: the master IP
|
432 | 41e079ce | Andrea Spadaccini | @param master_netdev: the master network device
|
433 | 41e079ce | Andrea Spadaccini |
|
434 | 5a8648eb | Andrea Spadaccini | """
|
435 | 5a8648eb | Andrea Spadaccini | if old_netmask == netmask:
|
436 | 5a8648eb | Andrea Spadaccini | return
|
437 | 5a8648eb | Andrea Spadaccini | |
438 | 9e6014b9 | Andrea Spadaccini | if not netutils.IPAddress.Own(master_ip): |
439 | 9e6014b9 | Andrea Spadaccini | _Fail("The master IP address is not up, not attempting to change its"
|
440 | 9e6014b9 | Andrea Spadaccini | " netmask")
|
441 | 9e6014b9 | Andrea Spadaccini | |
442 | 5a8648eb | Andrea Spadaccini | result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "add", |
443 | 5a8648eb | Andrea Spadaccini | "%s/%s" % (master_ip, netmask),
|
444 | 5a8648eb | Andrea Spadaccini | "dev", master_netdev, "label", |
445 | 5a8648eb | Andrea Spadaccini | "%s:0" % master_netdev])
|
446 | 5a8648eb | Andrea Spadaccini | if result.failed:
|
447 | 9e6014b9 | Andrea Spadaccini | _Fail("Could not set the new netmask on the master IP address")
|
448 | 5a8648eb | Andrea Spadaccini | |
449 | 5a8648eb | Andrea Spadaccini | result = utils.RunCmd([constants.IP_COMMAND_PATH, "address", "del", |
450 | 5a8648eb | Andrea Spadaccini | "%s/%s" % (master_ip, old_netmask),
|
451 | 5a8648eb | Andrea Spadaccini | "dev", master_netdev, "label", |
452 | 5a8648eb | Andrea Spadaccini | "%s:0" % master_netdev])
|
453 | 5a8648eb | Andrea Spadaccini | if result.failed:
|
454 | 9e6014b9 | Andrea Spadaccini | _Fail("Could not bring down the master IP address with the old netmask")
|
455 | 5a8648eb | Andrea Spadaccini | |
456 | 5a8648eb | Andrea Spadaccini | |
457 | 19ddc57a | René Nussbaumer | def EtcHostsModify(mode, host, ip): |
458 | 19ddc57a | René Nussbaumer | """Modify a host entry in /etc/hosts.
|
459 | 19ddc57a | René Nussbaumer |
|
460 | 19ddc57a | René Nussbaumer | @param mode: The mode to operate. Either add or remove entry
|
461 | 19ddc57a | René Nussbaumer | @param host: The host to operate on
|
462 | 19ddc57a | René Nussbaumer | @param ip: The ip associated with the entry
|
463 | 19ddc57a | René Nussbaumer |
|
464 | 19ddc57a | René Nussbaumer | """
|
465 | 19ddc57a | René Nussbaumer | if mode == constants.ETC_HOSTS_ADD:
|
466 | 19ddc57a | René Nussbaumer | if not ip: |
467 | 19ddc57a | René Nussbaumer | RPCFail("Mode 'add' needs 'ip' parameter, but parameter not"
|
468 | 19ddc57a | René Nussbaumer | " present")
|
469 | 19ddc57a | René Nussbaumer | utils.AddHostToEtcHosts(host, ip) |
470 | 19ddc57a | René Nussbaumer | elif mode == constants.ETC_HOSTS_REMOVE:
|
471 | 19ddc57a | René Nussbaumer | if ip:
|
472 | 19ddc57a | René Nussbaumer | RPCFail("Mode 'remove' does not allow 'ip' parameter, but"
|
473 | 19ddc57a | René Nussbaumer | " parameter is present")
|
474 | 19ddc57a | René Nussbaumer | utils.RemoveHostFromEtcHosts(host) |
475 | 19ddc57a | René Nussbaumer | else:
|
476 | 19ddc57a | René Nussbaumer | RPCFail("Mode not supported")
|
477 | 19ddc57a | René Nussbaumer | |
478 | 19ddc57a | René Nussbaumer | |
479 | b989b9d9 | Ken Wehr | def LeaveCluster(modify_ssh_setup): |
480 | 10c2650b | Iustin Pop | """Cleans up and remove the current node.
|
481 | 10c2650b | Iustin Pop |
|
482 | 10c2650b | Iustin Pop | This function cleans up and prepares the current node to be removed
|
483 | 10c2650b | Iustin Pop | from the cluster.
|
484 | 10c2650b | Iustin Pop |
|
485 | 10c2650b | Iustin Pop | If processing is successful, then it raises an
|
486 | c41eea6e | Iustin Pop | L{errors.QuitGanetiException} which is used as a special case to
|
487 | 10c2650b | Iustin Pop | shutdown the node daemon.
|
488 | a8083063 | Iustin Pop |
|
489 | b989b9d9 | Ken Wehr | @param modify_ssh_setup: boolean
|
490 | b989b9d9 | Ken Wehr |
|
491 | a8083063 | Iustin Pop | """
|
492 | f78346f5 | Michael Hanselmann | _CleanDirectory(constants.DATA_DIR) |
493 | f942a838 | Michael Hanselmann | _CleanDirectory(constants.CRYPTO_KEYS_DIR) |
494 | 1bc59f76 | Michael Hanselmann | JobQueuePurge() |
495 | f78346f5 | Michael Hanselmann | |
496 | b989b9d9 | Ken Wehr | if modify_ssh_setup:
|
497 | b989b9d9 | Ken Wehr | try:
|
498 | b989b9d9 | Ken Wehr | priv_key, pub_key, auth_keys = ssh.GetUserFiles(constants.GANETI_RUNAS) |
499 | 7900ed01 | Iustin Pop | |
500 | b989b9d9 | Ken Wehr | utils.RemoveAuthorizedKey(auth_keys, utils.ReadFile(pub_key)) |
501 | a8083063 | Iustin Pop | |
502 | b989b9d9 | Ken Wehr | utils.RemoveFile(priv_key) |
503 | b989b9d9 | Ken Wehr | utils.RemoveFile(pub_key) |
504 | b989b9d9 | Ken Wehr | except errors.OpExecError:
|
505 | b989b9d9 | Ken Wehr | logging.exception("Error while processing ssh files")
|
506 | a8083063 | Iustin Pop | |
507 | ed008420 | Guido Trotter | try:
|
508 | 6b7d5878 | Michael Hanselmann | utils.RemoveFile(constants.CONFD_HMAC_KEY) |
509 | ed008420 | Guido Trotter | utils.RemoveFile(constants.RAPI_CERT_FILE) |
510 | bfe86c76 | Andrea Spadaccini | utils.RemoveFile(constants.SPICE_CERT_FILE) |
511 | bfe86c76 | Andrea Spadaccini | utils.RemoveFile(constants.SPICE_CACERT_FILE) |
512 | 168c1de2 | Michael Hanselmann | utils.RemoveFile(constants.NODED_CERT_FILE) |
513 | b459a848 | Andrea Spadaccini | except: # pylint: disable=W0702 |
514 | ed008420 | Guido Trotter | logging.exception("Error while removing cluster secrets")
|
515 | ed008420 | Guido Trotter | |
516 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "stop", constants.CONFD])
|
517 | f154a7a3 | Michael Hanselmann | if result.failed:
|
518 | f154a7a3 | Michael Hanselmann | logging.error("Command %s failed with exitcode %s and error %s",
|
519 | f154a7a3 | Michael Hanselmann | result.cmd, result.exit_code, result.output) |
520 | ed008420 | Guido Trotter | |
521 | 0623d351 | Iustin Pop | # Raise a custom exception (handled in ganeti-noded)
|
522 | d0c8c01d | Iustin Pop | raise errors.QuitGanetiException(True, "Shutdown scheduled") |
523 | 6d8b6238 | Guido Trotter | |
524 | a8083063 | Iustin Pop | |
525 | 78519c10 | Michael Hanselmann | def _GetVgInfo(name): |
526 | 78519c10 | Michael Hanselmann | """Retrieves information about a LVM volume group.
|
527 | 78519c10 | Michael Hanselmann |
|
528 | 78519c10 | Michael Hanselmann | """
|
529 | 78519c10 | Michael Hanselmann | # TODO: GetVGInfo supports returning information for multiple VGs at once
|
530 | 78519c10 | Michael Hanselmann | vginfo = bdev.LogicalVolume.GetVGInfo([name]) |
531 | 78519c10 | Michael Hanselmann | if vginfo:
|
532 | 78519c10 | Michael Hanselmann | vg_free = int(round(vginfo[0][0], 0)) |
533 | 78519c10 | Michael Hanselmann | vg_size = int(round(vginfo[0][1], 0)) |
534 | 78519c10 | Michael Hanselmann | else:
|
535 | 78519c10 | Michael Hanselmann | vg_free = None
|
536 | 78519c10 | Michael Hanselmann | vg_size = None
|
537 | 78519c10 | Michael Hanselmann | |
538 | 78519c10 | Michael Hanselmann | return {
|
539 | 78519c10 | Michael Hanselmann | "name": name,
|
540 | 1e89a135 | Michael Hanselmann | "vg_free": vg_free,
|
541 | 1e89a135 | Michael Hanselmann | "vg_size": vg_size,
|
542 | 78519c10 | Michael Hanselmann | } |
543 | 78519c10 | Michael Hanselmann | |
544 | 78519c10 | Michael Hanselmann | |
545 | 78519c10 | Michael Hanselmann | def _GetHvInfo(name): |
546 | 78519c10 | Michael Hanselmann | """Retrieves node information from a hypervisor.
|
547 | 78519c10 | Michael Hanselmann |
|
548 | 78519c10 | Michael Hanselmann | The information returned depends on the hypervisor. Common items:
|
549 | 78519c10 | Michael Hanselmann |
|
550 | 78519c10 | Michael Hanselmann | - vg_size is the size of the configured volume group in MiB
|
551 | 78519c10 | Michael Hanselmann | - vg_free is the free size of the volume group in MiB
|
552 | 78519c10 | Michael Hanselmann | - memory_dom0 is the memory allocated for domain0 in MiB
|
553 | 78519c10 | Michael Hanselmann | - memory_free is the currently available (free) ram in MiB
|
554 | 78519c10 | Michael Hanselmann | - memory_total is the total number of ram in MiB
|
555 | 78519c10 | Michael Hanselmann | - hv_version: the hypervisor version, if available
|
556 | 78519c10 | Michael Hanselmann |
|
557 | 78519c10 | Michael Hanselmann | """
|
558 | 78519c10 | Michael Hanselmann | return hypervisor.GetHypervisor(name).GetNodeInfo()
|
559 | 78519c10 | Michael Hanselmann | |
560 | 78519c10 | Michael Hanselmann | |
561 | 78519c10 | Michael Hanselmann | def _GetNamedNodeInfo(names, fn): |
562 | 78519c10 | Michael Hanselmann | """Calls C{fn} for all names in C{names} and returns a dictionary.
|
563 | 78519c10 | Michael Hanselmann |
|
564 | 78519c10 | Michael Hanselmann | @rtype: None or dict
|
565 | 78519c10 | Michael Hanselmann |
|
566 | 78519c10 | Michael Hanselmann | """
|
567 | 78519c10 | Michael Hanselmann | if names is None: |
568 | 78519c10 | Michael Hanselmann | return None |
569 | 78519c10 | Michael Hanselmann | else:
|
570 | ff3be305 | Michael Hanselmann | return map(fn, names) |
571 | 78519c10 | Michael Hanselmann | |
572 | 78519c10 | Michael Hanselmann | |
573 | 78519c10 | Michael Hanselmann | def GetNodeInfo(vg_names, hv_names): |
574 | 5bbd3f7f | Michael Hanselmann | """Gives back a hash with different information about the node.
|
575 | a8083063 | Iustin Pop |
|
576 | 78519c10 | Michael Hanselmann | @type vg_names: list of string
|
577 | 78519c10 | Michael Hanselmann | @param vg_names: Names of the volume groups to ask for disk space information
|
578 | 78519c10 | Michael Hanselmann | @type hv_names: list of string
|
579 | 78519c10 | Michael Hanselmann | @param hv_names: Names of the hypervisors to ask for node information
|
580 | 78519c10 | Michael Hanselmann | @rtype: tuple; (string, None/dict, None/dict)
|
581 | 78519c10 | Michael Hanselmann | @return: Tuple containing boot ID, volume group information and hypervisor
|
582 | 78519c10 | Michael Hanselmann | information
|
583 | a8083063 | Iustin Pop |
|
584 | 098c0958 | Michael Hanselmann | """
|
585 | 78519c10 | Michael Hanselmann | bootid = utils.ReadFile(_BOOT_ID_PATH, size=128).rstrip("\n") |
586 | 78519c10 | Michael Hanselmann | vg_info = _GetNamedNodeInfo(vg_names, _GetVgInfo) |
587 | 78519c10 | Michael Hanselmann | hv_info = _GetNamedNodeInfo(hv_names, _GetHvInfo) |
588 | 78519c10 | Michael Hanselmann | |
589 | 78519c10 | Michael Hanselmann | return (bootid, vg_info, hv_info)
|
590 | a8083063 | Iustin Pop | |
591 | a8083063 | Iustin Pop | |
592 | 62c9ec92 | Iustin Pop | def VerifyNode(what, cluster_name): |
593 | a8083063 | Iustin Pop | """Verify the status of the local node.
|
594 | a8083063 | Iustin Pop |
|
595 | e69d05fd | Iustin Pop | Based on the input L{what} parameter, various checks are done on the
|
596 | e69d05fd | Iustin Pop | local node.
|
597 | e69d05fd | Iustin Pop |
|
598 | e69d05fd | Iustin Pop | If the I{filelist} key is present, this list of
|
599 | e69d05fd | Iustin Pop | files is checksummed and the file/checksum pairs are returned.
|
600 | e69d05fd | Iustin Pop |
|
601 | e69d05fd | Iustin Pop | If the I{nodelist} key is present, we check that we have
|
602 | e69d05fd | Iustin Pop | connectivity via ssh with the target nodes (and check the hostname
|
603 | e69d05fd | Iustin Pop | report).
|
604 | a8083063 | Iustin Pop |
|
605 | e69d05fd | Iustin Pop | If the I{node-net-test} key is present, we check that we have
|
606 | e69d05fd | Iustin Pop | connectivity to the given nodes via both primary IP and, if
|
607 | e69d05fd | Iustin Pop | applicable, secondary IPs.
|
608 | e69d05fd | Iustin Pop |
|
609 | e69d05fd | Iustin Pop | @type what: C{dict}
|
610 | e69d05fd | Iustin Pop | @param what: a dictionary of things to check:
|
611 | e69d05fd | Iustin Pop | - filelist: list of files for which to compute checksums
|
612 | e69d05fd | Iustin Pop | - nodelist: list of nodes we should check ssh communication with
|
613 | e69d05fd | Iustin Pop | - node-net-test: list of nodes we should check node daemon port
|
614 | e69d05fd | Iustin Pop | connectivity with
|
615 | e69d05fd | Iustin Pop | - hypervisor: list with hypervisors to run the verify for
|
616 | 10c2650b | Iustin Pop | @rtype: dict
|
617 | 10c2650b | Iustin Pop | @return: a dictionary with the same keys as the input dict, and
|
618 | 10c2650b | Iustin Pop | values representing the result of the checks
|
619 | a8083063 | Iustin Pop |
|
620 | a8083063 | Iustin Pop | """
|
621 | a8083063 | Iustin Pop | result = {} |
622 | b705c7a6 | Manuel Franceschini | my_name = netutils.Hostname.GetSysName() |
623 | a744b676 | Manuel Franceschini | port = netutils.GetDaemonPort(constants.NODED) |
624 | 8964ee14 | Iustin Pop | vm_capable = my_name not in what.get(constants.NV_VMNODES, []) |
625 | a8083063 | Iustin Pop | |
626 | 8964ee14 | Iustin Pop | if constants.NV_HYPERVISOR in what and vm_capable: |
627 | 25361b9a | Iustin Pop | result[constants.NV_HYPERVISOR] = tmp = {} |
628 | 25361b9a | Iustin Pop | for hv_name in what[constants.NV_HYPERVISOR]: |
629 | 0cf5e7f5 | Iustin Pop | try:
|
630 | 0cf5e7f5 | Iustin Pop | val = hypervisor.GetHypervisor(hv_name).Verify() |
631 | 0cf5e7f5 | Iustin Pop | except errors.HypervisorError, err:
|
632 | 0cf5e7f5 | Iustin Pop | val = "Error while checking hypervisor: %s" % str(err) |
633 | 0cf5e7f5 | Iustin Pop | tmp[hv_name] = val |
634 | 25361b9a | Iustin Pop | |
635 | 58a59652 | Iustin Pop | if constants.NV_HVPARAMS in what and vm_capable: |
636 | 58a59652 | Iustin Pop | result[constants.NV_HVPARAMS] = tmp = [] |
637 | 58a59652 | Iustin Pop | for source, hv_name, hvparms in what[constants.NV_HVPARAMS]: |
638 | 58a59652 | Iustin Pop | try:
|
639 | 58a59652 | Iustin Pop | logging.info("Validating hv %s, %s", hv_name, hvparms)
|
640 | 58a59652 | Iustin Pop | hypervisor.GetHypervisor(hv_name).ValidateParameters(hvparms) |
641 | 58a59652 | Iustin Pop | except errors.HypervisorError, err:
|
642 | 58a59652 | Iustin Pop | tmp.append((source, hv_name, str(err)))
|
643 | 58a59652 | Iustin Pop | |
644 | 25361b9a | Iustin Pop | if constants.NV_FILELIST in what: |
645 | 25361b9a | Iustin Pop | result[constants.NV_FILELIST] = utils.FingerprintFiles( |
646 | 25361b9a | Iustin Pop | what[constants.NV_FILELIST]) |
647 | 25361b9a | Iustin Pop | |
648 | 25361b9a | Iustin Pop | if constants.NV_NODELIST in what: |
649 | 64c7b383 | Michael Hanselmann | (nodes, bynode) = what[constants.NV_NODELIST] |
650 | 64c7b383 | Michael Hanselmann | |
651 | 64c7b383 | Michael Hanselmann | # Add nodes from other groups (different for each node)
|
652 | 64c7b383 | Michael Hanselmann | try:
|
653 | 64c7b383 | Michael Hanselmann | nodes.extend(bynode[my_name]) |
654 | 64c7b383 | Michael Hanselmann | except KeyError: |
655 | 64c7b383 | Michael Hanselmann | pass
|
656 | 64c7b383 | Michael Hanselmann | |
657 | 64c7b383 | Michael Hanselmann | # Use a random order
|
658 | 64c7b383 | Michael Hanselmann | random.shuffle(nodes) |
659 | 64c7b383 | Michael Hanselmann | |
660 | 64c7b383 | Michael Hanselmann | # Try to contact all nodes
|
661 | 64c7b383 | Michael Hanselmann | val = {} |
662 | 64c7b383 | Michael Hanselmann | for node in nodes: |
663 | 62c9ec92 | Iustin Pop | success, message = _GetSshRunner(cluster_name).VerifyNodeHostname(node) |
664 | a8083063 | Iustin Pop | if not success: |
665 | 64c7b383 | Michael Hanselmann | val[node] = message |
666 | 64c7b383 | Michael Hanselmann | |
667 | 64c7b383 | Michael Hanselmann | result[constants.NV_NODELIST] = val |
668 | 25361b9a | Iustin Pop | |
669 | 25361b9a | Iustin Pop | if constants.NV_NODENETTEST in what: |
670 | 25361b9a | Iustin Pop | result[constants.NV_NODENETTEST] = tmp = {} |
671 | 9d4bfc96 | Iustin Pop | my_pip = my_sip = None
|
672 | 25361b9a | Iustin Pop | for name, pip, sip in what[constants.NV_NODENETTEST]: |
673 | 9d4bfc96 | Iustin Pop | if name == my_name:
|
674 | 9d4bfc96 | Iustin Pop | my_pip = pip |
675 | 9d4bfc96 | Iustin Pop | my_sip = sip |
676 | 9d4bfc96 | Iustin Pop | break
|
677 | 9d4bfc96 | Iustin Pop | if not my_pip: |
678 | 25361b9a | Iustin Pop | tmp[my_name] = ("Can't find my own primary/secondary IP"
|
679 | 25361b9a | Iustin Pop | " in the node list")
|
680 | 9d4bfc96 | Iustin Pop | else:
|
681 | 25361b9a | Iustin Pop | for name, pip, sip in what[constants.NV_NODENETTEST]: |
682 | 9d4bfc96 | Iustin Pop | fail = [] |
683 | a744b676 | Manuel Franceschini | if not netutils.TcpPing(pip, port, source=my_pip): |
684 | 9d4bfc96 | Iustin Pop | fail.append("primary")
|
685 | 9d4bfc96 | Iustin Pop | if sip != pip:
|
686 | a744b676 | Manuel Franceschini | if not netutils.TcpPing(sip, port, source=my_sip): |
687 | 9d4bfc96 | Iustin Pop | fail.append("secondary")
|
688 | 9d4bfc96 | Iustin Pop | if fail:
|
689 | 25361b9a | Iustin Pop | tmp[name] = ("failure using the %s interface(s)" %
|
690 | 25361b9a | Iustin Pop | " and ".join(fail))
|
691 | 25361b9a | Iustin Pop | |
692 | a3a5f850 | Iustin Pop | if constants.NV_MASTERIP in what: |
693 | a3a5f850 | Iustin Pop | # FIXME: add checks on incoming data structures (here and in the
|
694 | a3a5f850 | Iustin Pop | # rest of the function)
|
695 | a3a5f850 | Iustin Pop | master_name, master_ip = what[constants.NV_MASTERIP] |
696 | a3a5f850 | Iustin Pop | if master_name == my_name:
|
697 | 9769bb78 | Manuel Franceschini | source = constants.IP4_ADDRESS_LOCALHOST |
698 | a3a5f850 | Iustin Pop | else:
|
699 | a3a5f850 | Iustin Pop | source = None
|
700 | a744b676 | Manuel Franceschini | result[constants.NV_MASTERIP] = netutils.TcpPing(master_ip, port, |
701 | a3a5f850 | Iustin Pop | source=source) |
702 | a3a5f850 | Iustin Pop | |
703 | 17b0b812 | Andrea Spadaccini | if constants.NV_USERSCRIPTS in what: |
704 | 17b0b812 | Andrea Spadaccini | result[constants.NV_USERSCRIPTS] = \ |
705 | 17b0b812 | Andrea Spadaccini | [script for script in what[constants.NV_USERSCRIPTS] |
706 | 17b0b812 | Andrea Spadaccini | if not (os.path.exists(script) and os.access(script, os.X_OK))] |
707 | 17b0b812 | Andrea Spadaccini | |
708 | 16f41f24 | René Nussbaumer | if constants.NV_OOB_PATHS in what: |
709 | 16f41f24 | René Nussbaumer | result[constants.NV_OOB_PATHS] = tmp = [] |
710 | 16f41f24 | René Nussbaumer | for path in what[constants.NV_OOB_PATHS]: |
711 | 16f41f24 | René Nussbaumer | try:
|
712 | 16f41f24 | René Nussbaumer | st = os.stat(path) |
713 | 16f41f24 | René Nussbaumer | except OSError, err: |
714 | 16f41f24 | René Nussbaumer | tmp.append("error stating out of band helper: %s" % err)
|
715 | 16f41f24 | René Nussbaumer | else:
|
716 | 16f41f24 | René Nussbaumer | if stat.S_ISREG(st.st_mode):
|
717 | 16f41f24 | René Nussbaumer | if stat.S_IMODE(st.st_mode) & stat.S_IXUSR:
|
718 | 16f41f24 | René Nussbaumer | tmp.append(None)
|
719 | 16f41f24 | René Nussbaumer | else:
|
720 | 16f41f24 | René Nussbaumer | tmp.append("out of band helper %s is not executable" % path)
|
721 | 16f41f24 | René Nussbaumer | else:
|
722 | 16f41f24 | René Nussbaumer | tmp.append("out of band helper %s is not a file" % path)
|
723 | 16f41f24 | René Nussbaumer | |
724 | 8964ee14 | Iustin Pop | if constants.NV_LVLIST in what and vm_capable: |
725 | ed904904 | Iustin Pop | try:
|
726 | 84d7e26b | Dmitry Chernyak | val = GetVolumeList(utils.ListVolumeGroups().keys()) |
727 | ed904904 | Iustin Pop | except RPCFail, err:
|
728 | ed904904 | Iustin Pop | val = str(err)
|
729 | ed904904 | Iustin Pop | result[constants.NV_LVLIST] = val |
730 | 25361b9a | Iustin Pop | |
731 | 8964ee14 | Iustin Pop | if constants.NV_INSTANCELIST in what and vm_capable: |
732 | 0cf5e7f5 | Iustin Pop | # GetInstanceList can fail
|
733 | 0cf5e7f5 | Iustin Pop | try:
|
734 | 0cf5e7f5 | Iustin Pop | val = GetInstanceList(what[constants.NV_INSTANCELIST]) |
735 | 0cf5e7f5 | Iustin Pop | except RPCFail, err:
|
736 | 0cf5e7f5 | Iustin Pop | val = str(err)
|
737 | 0cf5e7f5 | Iustin Pop | result[constants.NV_INSTANCELIST] = val |
738 | 25361b9a | Iustin Pop | |
739 | 8964ee14 | Iustin Pop | if constants.NV_VGLIST in what and vm_capable: |
740 | e480923b | Iustin Pop | result[constants.NV_VGLIST] = utils.ListVolumeGroups() |
741 | 25361b9a | Iustin Pop | |
742 | 8964ee14 | Iustin Pop | if constants.NV_PVLIST in what and vm_capable: |
743 | d091393e | Iustin Pop | result[constants.NV_PVLIST] = \ |
744 | d091393e | Iustin Pop | bdev.LogicalVolume.GetPVInfo(what[constants.NV_PVLIST], |
745 | d091393e | Iustin Pop | filter_allocatable=False)
|
746 | d091393e | Iustin Pop | |
747 | 25361b9a | Iustin Pop | if constants.NV_VERSION in what: |
748 | e9ce0a64 | Iustin Pop | result[constants.NV_VERSION] = (constants.PROTOCOL_VERSION, |
749 | e9ce0a64 | Iustin Pop | constants.RELEASE_VERSION) |
750 | 25361b9a | Iustin Pop | |
751 | 8964ee14 | Iustin Pop | if constants.NV_HVINFO in what and vm_capable: |
752 | 25361b9a | Iustin Pop | hyper = hypervisor.GetHypervisor(what[constants.NV_HVINFO]) |
753 | 25361b9a | Iustin Pop | result[constants.NV_HVINFO] = hyper.GetNodeInfo() |
754 | 9d4bfc96 | Iustin Pop | |
755 | 8964ee14 | Iustin Pop | if constants.NV_DRBDLIST in what and vm_capable: |
756 | 6d2e83d5 | Iustin Pop | try:
|
757 | 6d2e83d5 | Iustin Pop | used_minors = bdev.DRBD8.GetUsedDevs().keys() |
758 | f6eaed12 | Iustin Pop | except errors.BlockDeviceError, err:
|
759 | 6d2e83d5 | Iustin Pop | logging.warning("Can't get used minors list", exc_info=True) |
760 | f6eaed12 | Iustin Pop | used_minors = str(err)
|
761 | 6d2e83d5 | Iustin Pop | result[constants.NV_DRBDLIST] = used_minors |
762 | 6d2e83d5 | Iustin Pop | |
763 | 8964ee14 | Iustin Pop | if constants.NV_DRBDHELPER in what and vm_capable: |
764 | 7ef40fbe | Luca Bigliardi | status = True
|
765 | 7ef40fbe | Luca Bigliardi | try:
|
766 | 7ef40fbe | Luca Bigliardi | payload = bdev.BaseDRBD.GetUsermodeHelper() |
767 | 7ef40fbe | Luca Bigliardi | except errors.BlockDeviceError, err:
|
768 | 7ef40fbe | Luca Bigliardi | logging.error("Can't get DRBD usermode helper: %s", str(err)) |
769 | 7ef40fbe | Luca Bigliardi | status = False
|
770 | 7ef40fbe | Luca Bigliardi | payload = str(err)
|
771 | 7ef40fbe | Luca Bigliardi | result[constants.NV_DRBDHELPER] = (status, payload) |
772 | 7ef40fbe | Luca Bigliardi | |
773 | 7c0aa8e9 | Iustin Pop | if constants.NV_NODESETUP in what: |
774 | 7c0aa8e9 | Iustin Pop | result[constants.NV_NODESETUP] = tmpr = [] |
775 | 7c0aa8e9 | Iustin Pop | if not os.path.isdir("/sys/block") or not os.path.isdir("/sys/class/net"): |
776 | 7c0aa8e9 | Iustin Pop | tmpr.append("The sysfs filesytem doesn't seem to be mounted"
|
777 | 7c0aa8e9 | Iustin Pop | " under /sys, missing required directories /sys/block"
|
778 | 7c0aa8e9 | Iustin Pop | " and /sys/class/net")
|
779 | 7c0aa8e9 | Iustin Pop | if (not os.path.isdir("/proc/sys") or |
780 | 7c0aa8e9 | Iustin Pop | not os.path.isfile("/proc/sysrq-trigger")): |
781 | 7c0aa8e9 | Iustin Pop | tmpr.append("The procfs filesystem doesn't seem to be mounted"
|
782 | 7c0aa8e9 | Iustin Pop | " under /proc, missing required directory /proc/sys and"
|
783 | 7c0aa8e9 | Iustin Pop | " the file /proc/sysrq-trigger")
|
784 | 313b2dd4 | Michael Hanselmann | |
785 | 313b2dd4 | Michael Hanselmann | if constants.NV_TIME in what: |
786 | 313b2dd4 | Michael Hanselmann | result[constants.NV_TIME] = utils.SplitTime(time.time()) |
787 | 313b2dd4 | Michael Hanselmann | |
788 | 8964ee14 | Iustin Pop | if constants.NV_OSLIST in what and vm_capable: |
789 | b0d85178 | Iustin Pop | result[constants.NV_OSLIST] = DiagnoseOS() |
790 | b0d85178 | Iustin Pop | |
791 | 20d317d4 | Iustin Pop | if constants.NV_BRIDGES in what and vm_capable: |
792 | 20d317d4 | Iustin Pop | result[constants.NV_BRIDGES] = [bridge |
793 | 20d317d4 | Iustin Pop | for bridge in what[constants.NV_BRIDGES] |
794 | 20d317d4 | Iustin Pop | if not utils.BridgeExists(bridge)] |
795 | c26a6bd2 | Iustin Pop | return result
|
796 | a8083063 | Iustin Pop | |
797 | a8083063 | Iustin Pop | |
798 | 2be7273c | Apollon Oikonomopoulos | def GetBlockDevSizes(devices): |
799 | 2be7273c | Apollon Oikonomopoulos | """Return the size of the given block devices
|
800 | 2be7273c | Apollon Oikonomopoulos |
|
801 | 2be7273c | Apollon Oikonomopoulos | @type devices: list
|
802 | 2be7273c | Apollon Oikonomopoulos | @param devices: list of block device nodes to query
|
803 | 2be7273c | Apollon Oikonomopoulos | @rtype: dict
|
804 | 2be7273c | Apollon Oikonomopoulos | @return:
|
805 | 2be7273c | Apollon Oikonomopoulos | dictionary of all block devices under /dev (key). The value is their
|
806 | 2be7273c | Apollon Oikonomopoulos | size in MiB.
|
807 | 2be7273c | Apollon Oikonomopoulos |
|
808 | 2be7273c | Apollon Oikonomopoulos | {'/dev/disk/by-uuid/123456-12321231-312312-312': 124}
|
809 | 2be7273c | Apollon Oikonomopoulos |
|
810 | 2be7273c | Apollon Oikonomopoulos | """
|
811 | 2be7273c | Apollon Oikonomopoulos | DEV_PREFIX = "/dev/"
|
812 | 2be7273c | Apollon Oikonomopoulos | blockdevs = {} |
813 | 2be7273c | Apollon Oikonomopoulos | |
814 | 2be7273c | Apollon Oikonomopoulos | for devpath in devices: |
815 | cf00dba0 | René Nussbaumer | if not utils.IsBelowDir(DEV_PREFIX, devpath): |
816 | 2be7273c | Apollon Oikonomopoulos | continue
|
817 | 2be7273c | Apollon Oikonomopoulos | |
818 | 2be7273c | Apollon Oikonomopoulos | try:
|
819 | 2be7273c | Apollon Oikonomopoulos | st = os.stat(devpath) |
820 | 2be7273c | Apollon Oikonomopoulos | except EnvironmentError, err: |
821 | 2be7273c | Apollon Oikonomopoulos | logging.warning("Error stat()'ing device %s: %s", devpath, str(err)) |
822 | 2be7273c | Apollon Oikonomopoulos | continue
|
823 | 2be7273c | Apollon Oikonomopoulos | |
824 | 2be7273c | Apollon Oikonomopoulos | if stat.S_ISBLK(st.st_mode):
|
825 | 2be7273c | Apollon Oikonomopoulos | result = utils.RunCmd(["blockdev", "--getsize64", devpath]) |
826 | 2be7273c | Apollon Oikonomopoulos | if result.failed:
|
827 | 2be7273c | Apollon Oikonomopoulos | # We don't want to fail, just do not list this device as available
|
828 | 2be7273c | Apollon Oikonomopoulos | logging.warning("Cannot get size for block device %s", devpath)
|
829 | 2be7273c | Apollon Oikonomopoulos | continue
|
830 | 2be7273c | Apollon Oikonomopoulos | |
831 | 2be7273c | Apollon Oikonomopoulos | size = int(result.stdout) / (1024 * 1024) |
832 | 2be7273c | Apollon Oikonomopoulos | blockdevs[devpath] = size |
833 | 2be7273c | Apollon Oikonomopoulos | return blockdevs
|
834 | 2be7273c | Apollon Oikonomopoulos | |
835 | 2be7273c | Apollon Oikonomopoulos | |
836 | 84d7e26b | Dmitry Chernyak | def GetVolumeList(vg_names): |
837 | a8083063 | Iustin Pop | """Compute list of logical volumes and their size.
|
838 | a8083063 | Iustin Pop |
|
839 | 84d7e26b | Dmitry Chernyak | @type vg_names: list
|
840 | 397693d3 | Iustin Pop | @param vg_names: the volume groups whose LVs we should list, or
|
841 | 397693d3 | Iustin Pop | empty for all volume groups
|
842 | 10c2650b | Iustin Pop | @rtype: dict
|
843 | 10c2650b | Iustin Pop | @return:
|
844 | 10c2650b | Iustin Pop | dictionary of all partions (key) with value being a tuple of
|
845 | 10c2650b | Iustin Pop | their size (in MiB), inactive and online status::
|
846 | 10c2650b | Iustin Pop |
|
847 | 84d7e26b | Dmitry Chernyak | {'xenvg/test1': ('20.06', True, True)}
|
848 | 10c2650b | Iustin Pop |
|
849 | 10c2650b | Iustin Pop | in case of errors, a string is returned with the error
|
850 | 10c2650b | Iustin Pop | details.
|
851 | a8083063 | Iustin Pop |
|
852 | a8083063 | Iustin Pop | """
|
853 | cb2037a2 | Iustin Pop | lvs = {} |
854 | d0c8c01d | Iustin Pop | sep = "|"
|
855 | 397693d3 | Iustin Pop | if not vg_names: |
856 | 397693d3 | Iustin Pop | vg_names = [] |
857 | cb2037a2 | Iustin Pop | result = utils.RunCmd(["lvs", "--noheadings", "--units=m", "--nosuffix", |
858 | cb2037a2 | Iustin Pop | "--separator=%s" % sep,
|
859 | 84d7e26b | Dmitry Chernyak | "-ovg_name,lv_name,lv_size,lv_attr"] + vg_names)
|
860 | a8083063 | Iustin Pop | if result.failed:
|
861 | 29d376ec | Iustin Pop | _Fail("Failed to list logical volumes, lvs output: %s", result.output)
|
862 | cb2037a2 | Iustin Pop | |
863 | cb2037a2 | Iustin Pop | for line in result.stdout.splitlines(): |
864 | df4c2628 | Iustin Pop | line = line.strip() |
865 | 0b5303da | Iustin Pop | match = _LVSLINE_REGEX.match(line) |
866 | df4c2628 | Iustin Pop | if not match: |
867 | 18682bca | Iustin Pop | logging.error("Invalid line returned from lvs output: '%s'", line)
|
868 | df4c2628 | Iustin Pop | continue
|
869 | 84d7e26b | Dmitry Chernyak | vg_name, name, size, attr = match.groups() |
870 | d0c8c01d | Iustin Pop | inactive = attr[4] == "-" |
871 | d0c8c01d | Iustin Pop | online = attr[5] == "o" |
872 | d0c8c01d | Iustin Pop | virtual = attr[0] == "v" |
873 | 33f2a81a | Iustin Pop | if virtual:
|
874 | 33f2a81a | Iustin Pop | # we don't want to report such volumes as existing, since they
|
875 | 33f2a81a | Iustin Pop | # don't really hold data
|
876 | 33f2a81a | Iustin Pop | continue
|
877 | e687ec01 | Michael Hanselmann | lvs[vg_name + "/" + name] = (size, inactive, online)
|
878 | cb2037a2 | Iustin Pop | |
879 | cb2037a2 | Iustin Pop | return lvs
|
880 | a8083063 | Iustin Pop | |
881 | a8083063 | Iustin Pop | |
882 | a8083063 | Iustin Pop | def ListVolumeGroups(): |
883 | 2f8598a5 | Alexander Schreiber | """List the volume groups and their size.
|
884 | a8083063 | Iustin Pop |
|
885 | 10c2650b | Iustin Pop | @rtype: dict
|
886 | 10c2650b | Iustin Pop | @return: dictionary with keys volume name and values the
|
887 | 10c2650b | Iustin Pop | size of the volume
|
888 | a8083063 | Iustin Pop |
|
889 | a8083063 | Iustin Pop | """
|
890 | c26a6bd2 | Iustin Pop | return utils.ListVolumeGroups()
|
891 | a8083063 | Iustin Pop | |
892 | a8083063 | Iustin Pop | |
893 | dcb93971 | Michael Hanselmann | def NodeVolumes(): |
894 | dcb93971 | Michael Hanselmann | """List all volumes on this node.
|
895 | dcb93971 | Michael Hanselmann |
|
896 | 10c2650b | Iustin Pop | @rtype: list
|
897 | 10c2650b | Iustin Pop | @return:
|
898 | 10c2650b | Iustin Pop | A list of dictionaries, each having four keys:
|
899 | 10c2650b | Iustin Pop | - name: the logical volume name,
|
900 | 10c2650b | Iustin Pop | - size: the size of the logical volume
|
901 | 10c2650b | Iustin Pop | - dev: the physical device on which the LV lives
|
902 | 10c2650b | Iustin Pop | - vg: the volume group to which it belongs
|
903 | 10c2650b | Iustin Pop |
|
904 | 10c2650b | Iustin Pop | In case of errors, we return an empty list and log the
|
905 | 10c2650b | Iustin Pop | error.
|
906 | 10c2650b | Iustin Pop |
|
907 | 10c2650b | Iustin Pop | Note that since a logical volume can live on multiple physical
|
908 | 10c2650b | Iustin Pop | volumes, the resulting list might include a logical volume
|
909 | 10c2650b | Iustin Pop | multiple times.
|
910 | 10c2650b | Iustin Pop |
|
911 | dcb93971 | Michael Hanselmann | """
|
912 | dcb93971 | Michael Hanselmann | result = utils.RunCmd(["lvs", "--noheadings", "--units=m", "--nosuffix", |
913 | dcb93971 | Michael Hanselmann | "--separator=|",
|
914 | dcb93971 | Michael Hanselmann | "--options=lv_name,lv_size,devices,vg_name"])
|
915 | dcb93971 | Michael Hanselmann | if result.failed:
|
916 | 10bfe6cb | Iustin Pop | _Fail("Failed to list logical volumes, lvs output: %s",
|
917 | 10bfe6cb | Iustin Pop | result.output) |
918 | dcb93971 | Michael Hanselmann | |
919 | dcb93971 | Michael Hanselmann | def parse_dev(dev): |
920 | d0c8c01d | Iustin Pop | return dev.split("(")[0] |
921 | 89e5ab02 | Iustin Pop | |
922 | 89e5ab02 | Iustin Pop | def handle_dev(dev): |
923 | 89e5ab02 | Iustin Pop | return [parse_dev(x) for x in dev.split(",")] |
924 | dcb93971 | Michael Hanselmann | |
925 | dcb93971 | Michael Hanselmann | def map_line(line): |
926 | 89e5ab02 | Iustin Pop | line = [v.strip() for v in line] |
927 | d0c8c01d | Iustin Pop | return [{"name": line[0], "size": line[1], |
928 | d0c8c01d | Iustin Pop | "dev": dev, "vg": line[3]} for dev in handle_dev(line[2])] |
929 | 89e5ab02 | Iustin Pop | |
930 | 89e5ab02 | Iustin Pop | all_devs = [] |
931 | 89e5ab02 | Iustin Pop | for line in result.stdout.splitlines(): |
932 | d0c8c01d | Iustin Pop | if line.count("|") >= 3: |
933 | d0c8c01d | Iustin Pop | all_devs.extend(map_line(line.split("|")))
|
934 | 89e5ab02 | Iustin Pop | else:
|
935 | 89e5ab02 | Iustin Pop | logging.warning("Strange line in the output from lvs: '%s'", line)
|
936 | 89e5ab02 | Iustin Pop | return all_devs
|
937 | dcb93971 | Michael Hanselmann | |
938 | dcb93971 | Michael Hanselmann | |
939 | a8083063 | Iustin Pop | def BridgesExist(bridges_list): |
940 | 2f8598a5 | Alexander Schreiber | """Check if a list of bridges exist on the current node.
|
941 | a8083063 | Iustin Pop |
|
942 | b1206984 | Iustin Pop | @rtype: boolean
|
943 | b1206984 | Iustin Pop | @return: C{True} if all of them exist, C{False} otherwise
|
944 | a8083063 | Iustin Pop |
|
945 | a8083063 | Iustin Pop | """
|
946 | 35c0c8da | Iustin Pop | missing = [] |
947 | a8083063 | Iustin Pop | for bridge in bridges_list: |
948 | a8083063 | Iustin Pop | if not utils.BridgeExists(bridge): |
949 | 35c0c8da | Iustin Pop | missing.append(bridge) |
950 | a8083063 | Iustin Pop | |
951 | 35c0c8da | Iustin Pop | if missing:
|
952 | 1f864b60 | Iustin Pop | _Fail("Missing bridges %s", utils.CommaJoin(missing))
|
953 | 35c0c8da | Iustin Pop | |
954 | a8083063 | Iustin Pop | |
955 | e69d05fd | Iustin Pop | def GetInstanceList(hypervisor_list): |
956 | 2f8598a5 | Alexander Schreiber | """Provides a list of instances.
|
957 | a8083063 | Iustin Pop |
|
958 | e69d05fd | Iustin Pop | @type hypervisor_list: list
|
959 | e69d05fd | Iustin Pop | @param hypervisor_list: the list of hypervisors to query information
|
960 | e69d05fd | Iustin Pop |
|
961 | e69d05fd | Iustin Pop | @rtype: list
|
962 | e69d05fd | Iustin Pop | @return: a list of all running instances on the current node
|
963 | 10c2650b | Iustin Pop | - instance1.example.com
|
964 | 10c2650b | Iustin Pop | - instance2.example.com
|
965 | a8083063 | Iustin Pop |
|
966 | 098c0958 | Michael Hanselmann | """
|
967 | e69d05fd | Iustin Pop | results = [] |
968 | e69d05fd | Iustin Pop | for hname in hypervisor_list: |
969 | e69d05fd | Iustin Pop | try:
|
970 | e69d05fd | Iustin Pop | names = hypervisor.GetHypervisor(hname).ListInstances() |
971 | e69d05fd | Iustin Pop | results.extend(names) |
972 | e69d05fd | Iustin Pop | except errors.HypervisorError, err:
|
973 | aca13712 | Iustin Pop | _Fail("Error enumerating instances (hypervisor %s): %s",
|
974 | aca13712 | Iustin Pop | hname, err, exc=True)
|
975 | a8083063 | Iustin Pop | |
976 | e69d05fd | Iustin Pop | return results
|
977 | a8083063 | Iustin Pop | |
978 | a8083063 | Iustin Pop | |
979 | e69d05fd | Iustin Pop | def GetInstanceInfo(instance, hname): |
980 | 5bbd3f7f | Michael Hanselmann | """Gives back the information about an instance as a dictionary.
|
981 | a8083063 | Iustin Pop |
|
982 | e69d05fd | Iustin Pop | @type instance: string
|
983 | e69d05fd | Iustin Pop | @param instance: the instance name
|
984 | e69d05fd | Iustin Pop | @type hname: string
|
985 | e69d05fd | Iustin Pop | @param hname: the hypervisor type of the instance
|
986 | a8083063 | Iustin Pop |
|
987 | e69d05fd | Iustin Pop | @rtype: dict
|
988 | e69d05fd | Iustin Pop | @return: dictionary with the following keys:
|
989 | e69d05fd | Iustin Pop | - memory: memory size of instance (int)
|
990 | e69d05fd | Iustin Pop | - state: xen state of instance (string)
|
991 | e69d05fd | Iustin Pop | - time: cpu time of instance (float)
|
992 | a8083063 | Iustin Pop |
|
993 | 098c0958 | Michael Hanselmann | """
|
994 | a8083063 | Iustin Pop | output = {} |
995 | a8083063 | Iustin Pop | |
996 | e69d05fd | Iustin Pop | iinfo = hypervisor.GetHypervisor(hname).GetInstanceInfo(instance) |
997 | a8083063 | Iustin Pop | if iinfo is not None: |
998 | d0c8c01d | Iustin Pop | output["memory"] = iinfo[2] |
999 | d0c8c01d | Iustin Pop | output["state"] = iinfo[4] |
1000 | d0c8c01d | Iustin Pop | output["time"] = iinfo[5] |
1001 | a8083063 | Iustin Pop | |
1002 | c26a6bd2 | Iustin Pop | return output
|
1003 | a8083063 | Iustin Pop | |
1004 | a8083063 | Iustin Pop | |
1005 | 56e7640c | Iustin Pop | def GetInstanceMigratable(instance): |
1006 | 56e7640c | Iustin Pop | """Gives whether an instance can be migrated.
|
1007 | 56e7640c | Iustin Pop |
|
1008 | 56e7640c | Iustin Pop | @type instance: L{objects.Instance}
|
1009 | 56e7640c | Iustin Pop | @param instance: object representing the instance to be checked.
|
1010 | 56e7640c | Iustin Pop |
|
1011 | 56e7640c | Iustin Pop | @rtype: tuple
|
1012 | 56e7640c | Iustin Pop | @return: tuple of (result, description) where:
|
1013 | 56e7640c | Iustin Pop | - result: whether the instance can be migrated or not
|
1014 | 56e7640c | Iustin Pop | - description: a description of the issue, if relevant
|
1015 | 56e7640c | Iustin Pop |
|
1016 | 56e7640c | Iustin Pop | """
|
1017 | 56e7640c | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1018 | afdc3985 | Iustin Pop | iname = instance.name |
1019 | afdc3985 | Iustin Pop | if iname not in hyper.ListInstances(): |
1020 | afdc3985 | Iustin Pop | _Fail("Instance %s is not running", iname)
|
1021 | 56e7640c | Iustin Pop | |
1022 | 56e7640c | Iustin Pop | for idx in range(len(instance.disks)): |
1023 | afdc3985 | Iustin Pop | link_name = _GetBlockDevSymlinkPath(iname, idx) |
1024 | 56e7640c | Iustin Pop | if not os.path.islink(link_name): |
1025 | b8ebd37b | Iustin Pop | logging.warning("Instance %s is missing symlink %s for disk %d",
|
1026 | b8ebd37b | Iustin Pop | iname, link_name, idx) |
1027 | 56e7640c | Iustin Pop | |
1028 | 56e7640c | Iustin Pop | |
1029 | e69d05fd | Iustin Pop | def GetAllInstancesInfo(hypervisor_list): |
1030 | a8083063 | Iustin Pop | """Gather data about all instances.
|
1031 | a8083063 | Iustin Pop |
|
1032 | 10c2650b | Iustin Pop | This is the equivalent of L{GetInstanceInfo}, except that it
|
1033 | a8083063 | Iustin Pop | computes data for all instances at once, thus being faster if one
|
1034 | a8083063 | Iustin Pop | needs data about more than one instance.
|
1035 | a8083063 | Iustin Pop |
|
1036 | e69d05fd | Iustin Pop | @type hypervisor_list: list
|
1037 | e69d05fd | Iustin Pop | @param hypervisor_list: list of hypervisors to query for instance data
|
1038 | e69d05fd | Iustin Pop |
|
1039 | 955db481 | Guido Trotter | @rtype: dict
|
1040 | e69d05fd | Iustin Pop | @return: dictionary of instance: data, with data having the following keys:
|
1041 | e69d05fd | Iustin Pop | - memory: memory size of instance (int)
|
1042 | e69d05fd | Iustin Pop | - state: xen state of instance (string)
|
1043 | e69d05fd | Iustin Pop | - time: cpu time of instance (float)
|
1044 | 10c2650b | Iustin Pop | - vcpus: the number of vcpus
|
1045 | a8083063 | Iustin Pop |
|
1046 | 098c0958 | Michael Hanselmann | """
|
1047 | a8083063 | Iustin Pop | output = {} |
1048 | a8083063 | Iustin Pop | |
1049 | e69d05fd | Iustin Pop | for hname in hypervisor_list: |
1050 | e69d05fd | Iustin Pop | iinfo = hypervisor.GetHypervisor(hname).GetAllInstancesInfo() |
1051 | e69d05fd | Iustin Pop | if iinfo:
|
1052 | 29921401 | Iustin Pop | for name, _, memory, vcpus, state, times in iinfo: |
1053 | f23b5ae8 | Iustin Pop | value = { |
1054 | d0c8c01d | Iustin Pop | "memory": memory,
|
1055 | d0c8c01d | Iustin Pop | "vcpus": vcpus,
|
1056 | d0c8c01d | Iustin Pop | "state": state,
|
1057 | d0c8c01d | Iustin Pop | "time": times,
|
1058 | e69d05fd | Iustin Pop | } |
1059 | b33b6f55 | Iustin Pop | if name in output: |
1060 | b33b6f55 | Iustin Pop | # we only check static parameters, like memory and vcpus,
|
1061 | b33b6f55 | Iustin Pop | # and not state and time which can change between the
|
1062 | b33b6f55 | Iustin Pop | # invocations of the different hypervisors
|
1063 | d0c8c01d | Iustin Pop | for key in "memory", "vcpus": |
1064 | b33b6f55 | Iustin Pop | if value[key] != output[name][key]:
|
1065 | 2fa74ef4 | Iustin Pop | _Fail("Instance %s is running twice"
|
1066 | 2fa74ef4 | Iustin Pop | " with different parameters", name)
|
1067 | f23b5ae8 | Iustin Pop | output[name] = value |
1068 | a8083063 | Iustin Pop | |
1069 | c26a6bd2 | Iustin Pop | return output
|
1070 | a8083063 | Iustin Pop | |
1071 | a8083063 | Iustin Pop | |
1072 | 6aa7a354 | Iustin Pop | def _InstanceLogName(kind, os_name, instance, component): |
1073 | 81a3406c | Iustin Pop | """Compute the OS log filename for a given instance and operation.
|
1074 | 81a3406c | Iustin Pop |
|
1075 | 81a3406c | Iustin Pop | The instance name and os name are passed in as strings since not all
|
1076 | 81a3406c | Iustin Pop | operations have these as part of an instance object.
|
1077 | 81a3406c | Iustin Pop |
|
1078 | 81a3406c | Iustin Pop | @type kind: string
|
1079 | 81a3406c | Iustin Pop | @param kind: the operation type (e.g. add, import, etc.)
|
1080 | 81a3406c | Iustin Pop | @type os_name: string
|
1081 | 81a3406c | Iustin Pop | @param os_name: the os name
|
1082 | 81a3406c | Iustin Pop | @type instance: string
|
1083 | 81a3406c | Iustin Pop | @param instance: the name of the instance being imported/added/etc.
|
1084 | 6aa7a354 | Iustin Pop | @type component: string or None
|
1085 | 6aa7a354 | Iustin Pop | @param component: the name of the component of the instance being
|
1086 | 6aa7a354 | Iustin Pop | transferred
|
1087 | 81a3406c | Iustin Pop |
|
1088 | 81a3406c | Iustin Pop | """
|
1089 | 1651d116 | Michael Hanselmann | # TODO: Use tempfile.mkstemp to create unique filename
|
1090 | 6aa7a354 | Iustin Pop | if component:
|
1091 | 6aa7a354 | Iustin Pop | assert "/" not in component |
1092 | 6aa7a354 | Iustin Pop | c_msg = "-%s" % component
|
1093 | 6aa7a354 | Iustin Pop | else:
|
1094 | 6aa7a354 | Iustin Pop | c_msg = ""
|
1095 | 6aa7a354 | Iustin Pop | base = ("%s-%s-%s%s-%s.log" %
|
1096 | 6aa7a354 | Iustin Pop | (kind, os_name, instance, c_msg, utils.TimestampForFilename())) |
1097 | 81a3406c | Iustin Pop | return utils.PathJoin(constants.LOG_OS_DIR, base)
|
1098 | 81a3406c | Iustin Pop | |
1099 | 81a3406c | Iustin Pop | |
1100 | 4a0e011f | Iustin Pop | def InstanceOsAdd(instance, reinstall, debug): |
1101 | 2f8598a5 | Alexander Schreiber | """Add an OS to an instance.
|
1102 | a8083063 | Iustin Pop |
|
1103 | d15a9ad3 | Guido Trotter | @type instance: L{objects.Instance}
|
1104 | d15a9ad3 | Guido Trotter | @param instance: Instance whose OS is to be installed
|
1105 | e557bae9 | Guido Trotter | @type reinstall: boolean
|
1106 | e557bae9 | Guido Trotter | @param reinstall: whether this is an instance reinstall
|
1107 | 4a0e011f | Iustin Pop | @type debug: integer
|
1108 | 4a0e011f | Iustin Pop | @param debug: debug level, passed to the OS scripts
|
1109 | c26a6bd2 | Iustin Pop | @rtype: None
|
1110 | a8083063 | Iustin Pop |
|
1111 | a8083063 | Iustin Pop | """
|
1112 | 255dcebd | Iustin Pop | inst_os = OSFromDisk(instance.os) |
1113 | 255dcebd | Iustin Pop | |
1114 | 4a0e011f | Iustin Pop | create_env = OSEnvironment(instance, inst_os, debug) |
1115 | e557bae9 | Guido Trotter | if reinstall:
|
1116 | d0c8c01d | Iustin Pop | create_env["INSTANCE_REINSTALL"] = "1" |
1117 | a8083063 | Iustin Pop | |
1118 | 6aa7a354 | Iustin Pop | logfile = _InstanceLogName("add", instance.os, instance.name, None) |
1119 | decd5f45 | Iustin Pop | |
1120 | d868edb4 | Iustin Pop | result = utils.RunCmd([inst_os.create_script], env=create_env, |
1121 | 896a03f6 | Iustin Pop | cwd=inst_os.path, output=logfile, reset_env=True)
|
1122 | decd5f45 | Iustin Pop | if result.failed:
|
1123 | 18682bca | Iustin Pop | logging.error("os create command '%s' returned error: %s, logfile: %s,"
|
1124 | d868edb4 | Iustin Pop | " output: %s", result.cmd, result.fail_reason, logfile,
|
1125 | 18682bca | Iustin Pop | result.output) |
1126 | 26f15862 | Iustin Pop | lines = [utils.SafeEncode(val) |
1127 | 20e01edd | Iustin Pop | for val in utils.TailFile(logfile, lines=20)] |
1128 | afdc3985 | Iustin Pop | _Fail("OS create script failed (%s), last lines in the"
|
1129 | afdc3985 | Iustin Pop | " log file:\n%s", result.fail_reason, "\n".join(lines), log=False) |
1130 | decd5f45 | Iustin Pop | |
1131 | decd5f45 | Iustin Pop | |
1132 | 4a0e011f | Iustin Pop | def RunRenameInstance(instance, old_name, debug): |
1133 | decd5f45 | Iustin Pop | """Run the OS rename script for an instance.
|
1134 | decd5f45 | Iustin Pop |
|
1135 | b1206984 | Iustin Pop | @type instance: L{objects.Instance}
|
1136 | d15a9ad3 | Guido Trotter | @param instance: Instance whose OS is to be installed
|
1137 | d15a9ad3 | Guido Trotter | @type old_name: string
|
1138 | d15a9ad3 | Guido Trotter | @param old_name: previous instance name
|
1139 | 4a0e011f | Iustin Pop | @type debug: integer
|
1140 | 4a0e011f | Iustin Pop | @param debug: debug level, passed to the OS scripts
|
1141 | 10c2650b | Iustin Pop | @rtype: boolean
|
1142 | 10c2650b | Iustin Pop | @return: the success of the operation
|
1143 | decd5f45 | Iustin Pop |
|
1144 | decd5f45 | Iustin Pop | """
|
1145 | decd5f45 | Iustin Pop | inst_os = OSFromDisk(instance.os) |
1146 | decd5f45 | Iustin Pop | |
1147 | 4a0e011f | Iustin Pop | rename_env = OSEnvironment(instance, inst_os, debug) |
1148 | d0c8c01d | Iustin Pop | rename_env["OLD_INSTANCE_NAME"] = old_name
|
1149 | decd5f45 | Iustin Pop | |
1150 | 81a3406c | Iustin Pop | logfile = _InstanceLogName("rename", instance.os,
|
1151 | 6aa7a354 | Iustin Pop | "%s-%s" % (old_name, instance.name), None) |
1152 | a8083063 | Iustin Pop | |
1153 | d868edb4 | Iustin Pop | result = utils.RunCmd([inst_os.rename_script], env=rename_env, |
1154 | 896a03f6 | Iustin Pop | cwd=inst_os.path, output=logfile, reset_env=True)
|
1155 | a8083063 | Iustin Pop | |
1156 | a8083063 | Iustin Pop | if result.failed:
|
1157 | 18682bca | Iustin Pop | logging.error("os create command '%s' returned error: %s output: %s",
|
1158 | d868edb4 | Iustin Pop | result.cmd, result.fail_reason, result.output) |
1159 | 26f15862 | Iustin Pop | lines = [utils.SafeEncode(val) |
1160 | 96841384 | Iustin Pop | for val in utils.TailFile(logfile, lines=20)] |
1161 | afdc3985 | Iustin Pop | _Fail("OS rename script failed (%s), last lines in the"
|
1162 | afdc3985 | Iustin Pop | " log file:\n%s", result.fail_reason, "\n".join(lines), log=False) |
1163 | a8083063 | Iustin Pop | |
1164 | a8083063 | Iustin Pop | |
1165 | 5282084b | Iustin Pop | def _GetBlockDevSymlinkPath(instance_name, idx): |
1166 | 3536c792 | Iustin Pop | return utils.PathJoin(constants.DISK_LINKS_DIR, "%s%s%d" % |
1167 | 3536c792 | Iustin Pop | (instance_name, constants.DISK_SEPARATOR, idx)) |
1168 | 5282084b | Iustin Pop | |
1169 | 5282084b | Iustin Pop | |
1170 | 5282084b | Iustin Pop | def _SymlinkBlockDev(instance_name, device_path, idx): |
1171 | 9332fd8a | Iustin Pop | """Set up symlinks to a instance's block device.
|
1172 | 9332fd8a | Iustin Pop |
|
1173 | 9332fd8a | Iustin Pop | This is an auxiliary function run when an instance is start (on the primary
|
1174 | 9332fd8a | Iustin Pop | node) or when an instance is migrated (on the target node).
|
1175 | 9332fd8a | Iustin Pop |
|
1176 | 9332fd8a | Iustin Pop |
|
1177 | 5282084b | Iustin Pop | @param instance_name: the name of the target instance
|
1178 | 5282084b | Iustin Pop | @param device_path: path of the physical block device, on the node
|
1179 | 5282084b | Iustin Pop | @param idx: the disk index
|
1180 | 5282084b | Iustin Pop | @return: absolute path to the disk's symlink
|
1181 | 9332fd8a | Iustin Pop |
|
1182 | 9332fd8a | Iustin Pop | """
|
1183 | 5282084b | Iustin Pop | link_name = _GetBlockDevSymlinkPath(instance_name, idx) |
1184 | 9332fd8a | Iustin Pop | try:
|
1185 | 9332fd8a | Iustin Pop | os.symlink(device_path, link_name) |
1186 | 5282084b | Iustin Pop | except OSError, err: |
1187 | 5282084b | Iustin Pop | if err.errno == errno.EEXIST:
|
1188 | 9332fd8a | Iustin Pop | if (not os.path.islink(link_name) or |
1189 | 9332fd8a | Iustin Pop | os.readlink(link_name) != device_path): |
1190 | 9332fd8a | Iustin Pop | os.remove(link_name) |
1191 | 9332fd8a | Iustin Pop | os.symlink(device_path, link_name) |
1192 | 9332fd8a | Iustin Pop | else:
|
1193 | 9332fd8a | Iustin Pop | raise
|
1194 | 9332fd8a | Iustin Pop | |
1195 | 9332fd8a | Iustin Pop | return link_name
|
1196 | 9332fd8a | Iustin Pop | |
1197 | 9332fd8a | Iustin Pop | |
1198 | 5282084b | Iustin Pop | def _RemoveBlockDevLinks(instance_name, disks): |
1199 | 3c9c571d | Iustin Pop | """Remove the block device symlinks belonging to the given instance.
|
1200 | 3c9c571d | Iustin Pop |
|
1201 | 3c9c571d | Iustin Pop | """
|
1202 | 29921401 | Iustin Pop | for idx, _ in enumerate(disks): |
1203 | 5282084b | Iustin Pop | link_name = _GetBlockDevSymlinkPath(instance_name, idx) |
1204 | 5282084b | Iustin Pop | if os.path.islink(link_name):
|
1205 | 3c9c571d | Iustin Pop | try:
|
1206 | 03dfa658 | Iustin Pop | os.remove(link_name) |
1207 | 03dfa658 | Iustin Pop | except OSError: |
1208 | 03dfa658 | Iustin Pop | logging.exception("Can't remove symlink '%s'", link_name)
|
1209 | 3c9c571d | Iustin Pop | |
1210 | 3c9c571d | Iustin Pop | |
1211 | 9332fd8a | Iustin Pop | def _GatherAndLinkBlockDevs(instance): |
1212 | a8083063 | Iustin Pop | """Set up an instance's block device(s).
|
1213 | a8083063 | Iustin Pop |
|
1214 | a8083063 | Iustin Pop | This is run on the primary node at instance startup. The block
|
1215 | a8083063 | Iustin Pop | devices must be already assembled.
|
1216 | a8083063 | Iustin Pop |
|
1217 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1218 | 10c2650b | Iustin Pop | @param instance: the instance whose disks we shoul assemble
|
1219 | 069cfbf1 | Iustin Pop | @rtype: list
|
1220 | 069cfbf1 | Iustin Pop | @return: list of (disk_object, device_path)
|
1221 | 10c2650b | Iustin Pop |
|
1222 | a8083063 | Iustin Pop | """
|
1223 | a8083063 | Iustin Pop | block_devices = [] |
1224 | 9332fd8a | Iustin Pop | for idx, disk in enumerate(instance.disks): |
1225 | a8083063 | Iustin Pop | device = _RecursiveFindBD(disk) |
1226 | a8083063 | Iustin Pop | if device is None: |
1227 | a8083063 | Iustin Pop | raise errors.BlockDeviceError("Block device '%s' is not set up." % |
1228 | a8083063 | Iustin Pop | str(disk))
|
1229 | a8083063 | Iustin Pop | device.Open() |
1230 | 9332fd8a | Iustin Pop | try:
|
1231 | 5282084b | Iustin Pop | link_name = _SymlinkBlockDev(instance.name, device.dev_path, idx) |
1232 | 9332fd8a | Iustin Pop | except OSError, e: |
1233 | 9332fd8a | Iustin Pop | raise errors.BlockDeviceError("Cannot create block device symlink: %s" % |
1234 | 9332fd8a | Iustin Pop | e.strerror) |
1235 | 9332fd8a | Iustin Pop | |
1236 | 9332fd8a | Iustin Pop | block_devices.append((disk, link_name)) |
1237 | 9332fd8a | Iustin Pop | |
1238 | a8083063 | Iustin Pop | return block_devices
|
1239 | a8083063 | Iustin Pop | |
1240 | a8083063 | Iustin Pop | |
1241 | 323f9095 | Stephen Shirley | def StartInstance(instance, startup_paused): |
1242 | a8083063 | Iustin Pop | """Start an instance.
|
1243 | a8083063 | Iustin Pop |
|
1244 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1245 | e69d05fd | Iustin Pop | @param instance: the instance object
|
1246 | 323f9095 | Stephen Shirley | @type startup_paused: bool
|
1247 | 323f9095 | Stephen Shirley | @param instance: pause instance at startup?
|
1248 | c26a6bd2 | Iustin Pop | @rtype: None
|
1249 | a8083063 | Iustin Pop |
|
1250 | 098c0958 | Michael Hanselmann | """
|
1251 | e69d05fd | Iustin Pop | running_instances = GetInstanceList([instance.hypervisor]) |
1252 | a8083063 | Iustin Pop | |
1253 | a8083063 | Iustin Pop | if instance.name in running_instances: |
1254 | c26a6bd2 | Iustin Pop | logging.info("Instance %s already running, not starting", instance.name)
|
1255 | c26a6bd2 | Iustin Pop | return
|
1256 | a8083063 | Iustin Pop | |
1257 | a8083063 | Iustin Pop | try:
|
1258 | ec596c24 | Iustin Pop | block_devices = _GatherAndLinkBlockDevs(instance) |
1259 | ec596c24 | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1260 | 323f9095 | Stephen Shirley | hyper.StartInstance(instance, block_devices, startup_paused) |
1261 | ec596c24 | Iustin Pop | except errors.BlockDeviceError, err:
|
1262 | 2cc6781a | Iustin Pop | _Fail("Block device error: %s", err, exc=True) |
1263 | a8083063 | Iustin Pop | except errors.HypervisorError, err:
|
1264 | 5282084b | Iustin Pop | _RemoveBlockDevLinks(instance.name, instance.disks) |
1265 | 2cc6781a | Iustin Pop | _Fail("Hypervisor error: %s", err, exc=True) |
1266 | a8083063 | Iustin Pop | |
1267 | a8083063 | Iustin Pop | |
1268 | 6263189c | Guido Trotter | def InstanceShutdown(instance, timeout): |
1269 | a8083063 | Iustin Pop | """Shut an instance down.
|
1270 | a8083063 | Iustin Pop |
|
1271 | 10c2650b | Iustin Pop | @note: this functions uses polling with a hardcoded timeout.
|
1272 | 10c2650b | Iustin Pop |
|
1273 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1274 | e69d05fd | Iustin Pop | @param instance: the instance object
|
1275 | 6263189c | Guido Trotter | @type timeout: integer
|
1276 | 6263189c | Guido Trotter | @param timeout: maximum timeout for soft shutdown
|
1277 | c26a6bd2 | Iustin Pop | @rtype: None
|
1278 | a8083063 | Iustin Pop |
|
1279 | 098c0958 | Michael Hanselmann | """
|
1280 | e69d05fd | Iustin Pop | hv_name = instance.hypervisor |
1281 | e4e9b806 | Guido Trotter | hyper = hypervisor.GetHypervisor(hv_name) |
1282 | c26a6bd2 | Iustin Pop | iname = instance.name |
1283 | a8083063 | Iustin Pop | |
1284 | 3c0cdc83 | Michael Hanselmann | if instance.name not in hyper.ListInstances(): |
1285 | c26a6bd2 | Iustin Pop | logging.info("Instance %s not running, doing nothing", iname)
|
1286 | c26a6bd2 | Iustin Pop | return
|
1287 | a8083063 | Iustin Pop | |
1288 | 3c0cdc83 | Michael Hanselmann | class _TryShutdown: |
1289 | 3c0cdc83 | Michael Hanselmann | def __init__(self): |
1290 | 3c0cdc83 | Michael Hanselmann | self.tried_once = False |
1291 | a8083063 | Iustin Pop | |
1292 | 3c0cdc83 | Michael Hanselmann | def __call__(self): |
1293 | 3c0cdc83 | Michael Hanselmann | if iname not in hyper.ListInstances(): |
1294 | 3c0cdc83 | Michael Hanselmann | return
|
1295 | 3c0cdc83 | Michael Hanselmann | |
1296 | 3c0cdc83 | Michael Hanselmann | try:
|
1297 | 3c0cdc83 | Michael Hanselmann | hyper.StopInstance(instance, retry=self.tried_once)
|
1298 | 3c0cdc83 | Michael Hanselmann | except errors.HypervisorError, err:
|
1299 | 3c0cdc83 | Michael Hanselmann | if iname not in hyper.ListInstances(): |
1300 | 3c0cdc83 | Michael Hanselmann | # if the instance is no longer existing, consider this a
|
1301 | 3c0cdc83 | Michael Hanselmann | # success and go to cleanup
|
1302 | 3c0cdc83 | Michael Hanselmann | return
|
1303 | 3c0cdc83 | Michael Hanselmann | |
1304 | 3c0cdc83 | Michael Hanselmann | _Fail("Failed to stop instance %s: %s", iname, err)
|
1305 | 3c0cdc83 | Michael Hanselmann | |
1306 | 3c0cdc83 | Michael Hanselmann | self.tried_once = True |
1307 | 3c0cdc83 | Michael Hanselmann | |
1308 | 3c0cdc83 | Michael Hanselmann | raise utils.RetryAgain()
|
1309 | 3c0cdc83 | Michael Hanselmann | |
1310 | 3c0cdc83 | Michael Hanselmann | try:
|
1311 | 3c0cdc83 | Michael Hanselmann | utils.Retry(_TryShutdown(), 5, timeout)
|
1312 | 3c0cdc83 | Michael Hanselmann | except utils.RetryTimeout:
|
1313 | a8083063 | Iustin Pop | # the shutdown did not succeed
|
1314 | e4e9b806 | Guido Trotter | logging.error("Shutdown of '%s' unsuccessful, forcing", iname)
|
1315 | a8083063 | Iustin Pop | |
1316 | a8083063 | Iustin Pop | try:
|
1317 | a8083063 | Iustin Pop | hyper.StopInstance(instance, force=True)
|
1318 | a8083063 | Iustin Pop | except errors.HypervisorError, err:
|
1319 | 3c0cdc83 | Michael Hanselmann | if iname in hyper.ListInstances(): |
1320 | 3782acd7 | Iustin Pop | # only raise an error if the instance still exists, otherwise
|
1321 | 3782acd7 | Iustin Pop | # the error could simply be "instance ... unknown"!
|
1322 | 3782acd7 | Iustin Pop | _Fail("Failed to force stop instance %s: %s", iname, err)
|
1323 | a8083063 | Iustin Pop | |
1324 | a8083063 | Iustin Pop | time.sleep(1)
|
1325 | 3c0cdc83 | Michael Hanselmann | |
1326 | 3c0cdc83 | Michael Hanselmann | if iname in hyper.ListInstances(): |
1327 | c26a6bd2 | Iustin Pop | _Fail("Could not shutdown instance %s even by destroy", iname)
|
1328 | 3c9c571d | Iustin Pop | |
1329 | f28ec899 | Guido Trotter | try:
|
1330 | f28ec899 | Guido Trotter | hyper.CleanupInstance(instance.name) |
1331 | f28ec899 | Guido Trotter | except errors.HypervisorError, err:
|
1332 | f28ec899 | Guido Trotter | logging.warning("Failed to execute post-shutdown cleanup step: %s", err)
|
1333 | f28ec899 | Guido Trotter | |
1334 | c26a6bd2 | Iustin Pop | _RemoveBlockDevLinks(iname, instance.disks) |
1335 | a8083063 | Iustin Pop | |
1336 | a8083063 | Iustin Pop | |
1337 | 17c3f802 | Guido Trotter | def InstanceReboot(instance, reboot_type, shutdown_timeout): |
1338 | 007a2f3e | Alexander Schreiber | """Reboot an instance.
|
1339 | 007a2f3e | Alexander Schreiber |
|
1340 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1341 | 10c2650b | Iustin Pop | @param instance: the instance object to reboot
|
1342 | 10c2650b | Iustin Pop | @type reboot_type: str
|
1343 | 10c2650b | Iustin Pop | @param reboot_type: the type of reboot, one the following
|
1344 | 10c2650b | Iustin Pop | constants:
|
1345 | 10c2650b | Iustin Pop | - L{constants.INSTANCE_REBOOT_SOFT}: only reboot the
|
1346 | 10c2650b | Iustin Pop | instance OS, do not recreate the VM
|
1347 | 10c2650b | Iustin Pop | - L{constants.INSTANCE_REBOOT_HARD}: tear down and
|
1348 | 10c2650b | Iustin Pop | restart the VM (at the hypervisor level)
|
1349 | 73e5a4f4 | Iustin Pop | - the other reboot type (L{constants.INSTANCE_REBOOT_FULL}) is
|
1350 | 73e5a4f4 | Iustin Pop | not accepted here, since that mode is handled differently, in
|
1351 | 73e5a4f4 | Iustin Pop | cmdlib, and translates into full stop and start of the
|
1352 | 73e5a4f4 | Iustin Pop | instance (instead of a call_instance_reboot RPC)
|
1353 | 23057d29 | Michael Hanselmann | @type shutdown_timeout: integer
|
1354 | 23057d29 | Michael Hanselmann | @param shutdown_timeout: maximum timeout for soft shutdown
|
1355 | c26a6bd2 | Iustin Pop | @rtype: None
|
1356 | 007a2f3e | Alexander Schreiber |
|
1357 | 007a2f3e | Alexander Schreiber | """
|
1358 | e69d05fd | Iustin Pop | running_instances = GetInstanceList([instance.hypervisor]) |
1359 | 007a2f3e | Alexander Schreiber | |
1360 | 007a2f3e | Alexander Schreiber | if instance.name not in running_instances: |
1361 | 2cc6781a | Iustin Pop | _Fail("Cannot reboot instance %s that is not running", instance.name)
|
1362 | 007a2f3e | Alexander Schreiber | |
1363 | e69d05fd | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1364 | 007a2f3e | Alexander Schreiber | if reboot_type == constants.INSTANCE_REBOOT_SOFT:
|
1365 | 007a2f3e | Alexander Schreiber | try:
|
1366 | 007a2f3e | Alexander Schreiber | hyper.RebootInstance(instance) |
1367 | 007a2f3e | Alexander Schreiber | except errors.HypervisorError, err:
|
1368 | 2cc6781a | Iustin Pop | _Fail("Failed to soft reboot instance %s: %s", instance.name, err)
|
1369 | 007a2f3e | Alexander Schreiber | elif reboot_type == constants.INSTANCE_REBOOT_HARD:
|
1370 | 007a2f3e | Alexander Schreiber | try:
|
1371 | 17c3f802 | Guido Trotter | InstanceShutdown(instance, shutdown_timeout) |
1372 | 82bc21e2 | Stephen Shirley | return StartInstance(instance, False) |
1373 | 007a2f3e | Alexander Schreiber | except errors.HypervisorError, err:
|
1374 | 2cc6781a | Iustin Pop | _Fail("Failed to hard reboot instance %s: %s", instance.name, err)
|
1375 | 007a2f3e | Alexander Schreiber | else:
|
1376 | 2cc6781a | Iustin Pop | _Fail("Invalid reboot_type received: %s", reboot_type)
|
1377 | 007a2f3e | Alexander Schreiber | |
1378 | 007a2f3e | Alexander Schreiber | |
1379 | 6906a9d8 | Guido Trotter | def MigrationInfo(instance): |
1380 | 6906a9d8 | Guido Trotter | """Gather information about an instance to be migrated.
|
1381 | 6906a9d8 | Guido Trotter |
|
1382 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1383 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1384 | 6906a9d8 | Guido Trotter |
|
1385 | 6906a9d8 | Guido Trotter | """
|
1386 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1387 | cd42d0ad | Guido Trotter | try:
|
1388 | cd42d0ad | Guido Trotter | info = hyper.MigrationInfo(instance) |
1389 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1390 | 2cc6781a | Iustin Pop | _Fail("Failed to fetch migration information: %s", err, exc=True) |
1391 | c26a6bd2 | Iustin Pop | return info
|
1392 | 6906a9d8 | Guido Trotter | |
1393 | 6906a9d8 | Guido Trotter | |
1394 | 6906a9d8 | Guido Trotter | def AcceptInstance(instance, info, target): |
1395 | 6906a9d8 | Guido Trotter | """Prepare the node to accept an instance.
|
1396 | 6906a9d8 | Guido Trotter |
|
1397 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1398 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1399 | 6906a9d8 | Guido Trotter | @type info: string/data (opaque)
|
1400 | 6906a9d8 | Guido Trotter | @param info: migration information, from the source node
|
1401 | 6906a9d8 | Guido Trotter | @type target: string
|
1402 | 6906a9d8 | Guido Trotter | @param target: target host (usually ip), on this node
|
1403 | 6906a9d8 | Guido Trotter |
|
1404 | 6906a9d8 | Guido Trotter | """
|
1405 | 77fcff4a | Apollon Oikonomopoulos | # TODO: why is this required only for DTS_EXT_MIRROR?
|
1406 | 77fcff4a | Apollon Oikonomopoulos | if instance.disk_template in constants.DTS_EXT_MIRROR: |
1407 | 77fcff4a | Apollon Oikonomopoulos | # Create the symlinks, as the disks are not active
|
1408 | 77fcff4a | Apollon Oikonomopoulos | # in any way
|
1409 | 77fcff4a | Apollon Oikonomopoulos | try:
|
1410 | 77fcff4a | Apollon Oikonomopoulos | _GatherAndLinkBlockDevs(instance) |
1411 | 77fcff4a | Apollon Oikonomopoulos | except errors.BlockDeviceError, err:
|
1412 | 77fcff4a | Apollon Oikonomopoulos | _Fail("Block device error: %s", err, exc=True) |
1413 | 77fcff4a | Apollon Oikonomopoulos | |
1414 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1415 | cd42d0ad | Guido Trotter | try:
|
1416 | cd42d0ad | Guido Trotter | hyper.AcceptInstance(instance, info, target) |
1417 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1418 | 77fcff4a | Apollon Oikonomopoulos | if instance.disk_template in constants.DTS_EXT_MIRROR: |
1419 | 77fcff4a | Apollon Oikonomopoulos | _RemoveBlockDevLinks(instance.name, instance.disks) |
1420 | 2cc6781a | Iustin Pop | _Fail("Failed to accept instance: %s", err, exc=True) |
1421 | 6906a9d8 | Guido Trotter | |
1422 | 6906a9d8 | Guido Trotter | |
1423 | 6a1434d7 | Andrea Spadaccini | def FinalizeMigrationDst(instance, info, success): |
1424 | 6906a9d8 | Guido Trotter | """Finalize any preparation to accept an instance.
|
1425 | 6906a9d8 | Guido Trotter |
|
1426 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1427 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1428 | 6906a9d8 | Guido Trotter | @type info: string/data (opaque)
|
1429 | 6906a9d8 | Guido Trotter | @param info: migration information, from the source node
|
1430 | 6906a9d8 | Guido Trotter | @type success: boolean
|
1431 | 6906a9d8 | Guido Trotter | @param success: whether the migration was a success or a failure
|
1432 | 6906a9d8 | Guido Trotter |
|
1433 | 6906a9d8 | Guido Trotter | """
|
1434 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1435 | cd42d0ad | Guido Trotter | try:
|
1436 | 6a1434d7 | Andrea Spadaccini | hyper.FinalizeMigrationDst(instance, info, success) |
1437 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1438 | 6a1434d7 | Andrea Spadaccini | _Fail("Failed to finalize migration on the target node: %s", err, exc=True) |
1439 | 6906a9d8 | Guido Trotter | |
1440 | 6906a9d8 | Guido Trotter | |
1441 | 2a10865c | Iustin Pop | def MigrateInstance(instance, target, live): |
1442 | 2a10865c | Iustin Pop | """Migrates an instance to another node.
|
1443 | 2a10865c | Iustin Pop |
|
1444 | b1206984 | Iustin Pop | @type instance: L{objects.Instance}
|
1445 | 9f0e6b37 | Iustin Pop | @param instance: the instance definition
|
1446 | 9f0e6b37 | Iustin Pop | @type target: string
|
1447 | 9f0e6b37 | Iustin Pop | @param target: the target node name
|
1448 | 9f0e6b37 | Iustin Pop | @type live: boolean
|
1449 | 9f0e6b37 | Iustin Pop | @param live: whether the migration should be done live or not (the
|
1450 | 9f0e6b37 | Iustin Pop | interpretation of this parameter is left to the hypervisor)
|
1451 | c03fe62b | Andrea Spadaccini | @raise RPCFail: if migration fails for some reason
|
1452 | 9f0e6b37 | Iustin Pop |
|
1453 | 2a10865c | Iustin Pop | """
|
1454 | 53c776b5 | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1455 | 2a10865c | Iustin Pop | |
1456 | 2a10865c | Iustin Pop | try:
|
1457 | 58d38b02 | Iustin Pop | hyper.MigrateInstance(instance, target, live) |
1458 | 2a10865c | Iustin Pop | except errors.HypervisorError, err:
|
1459 | 2cc6781a | Iustin Pop | _Fail("Failed to migrate instance: %s", err, exc=True) |
1460 | 2a10865c | Iustin Pop | |
1461 | 2a10865c | Iustin Pop | |
1462 | 6a1434d7 | Andrea Spadaccini | def FinalizeMigrationSource(instance, success, live): |
1463 | 6a1434d7 | Andrea Spadaccini | """Finalize the instance migration on the source node.
|
1464 | 6a1434d7 | Andrea Spadaccini |
|
1465 | 6a1434d7 | Andrea Spadaccini | @type instance: L{objects.Instance}
|
1466 | 6a1434d7 | Andrea Spadaccini | @param instance: the instance definition of the migrated instance
|
1467 | 6a1434d7 | Andrea Spadaccini | @type success: bool
|
1468 | 6a1434d7 | Andrea Spadaccini | @param success: whether the migration succeeded or not
|
1469 | 6a1434d7 | Andrea Spadaccini | @type live: bool
|
1470 | 6a1434d7 | Andrea Spadaccini | @param live: whether the user requested a live migration or not
|
1471 | 6a1434d7 | Andrea Spadaccini | @raise RPCFail: If the execution fails for some reason
|
1472 | 6a1434d7 | Andrea Spadaccini |
|
1473 | 6a1434d7 | Andrea Spadaccini | """
|
1474 | 6a1434d7 | Andrea Spadaccini | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1475 | 6a1434d7 | Andrea Spadaccini | |
1476 | 6a1434d7 | Andrea Spadaccini | try:
|
1477 | 6a1434d7 | Andrea Spadaccini | hyper.FinalizeMigrationSource(instance, success, live) |
1478 | 6a1434d7 | Andrea Spadaccini | except Exception, err: # pylint: disable=W0703 |
1479 | 6a1434d7 | Andrea Spadaccini | _Fail("Failed to finalize the migration on the source node: %s", err,
|
1480 | 6a1434d7 | Andrea Spadaccini | exc=True)
|
1481 | 6a1434d7 | Andrea Spadaccini | |
1482 | 6a1434d7 | Andrea Spadaccini | |
1483 | 6a1434d7 | Andrea Spadaccini | def GetMigrationStatus(instance): |
1484 | 6a1434d7 | Andrea Spadaccini | """Get the migration status
|
1485 | 6a1434d7 | Andrea Spadaccini |
|
1486 | 6a1434d7 | Andrea Spadaccini | @type instance: L{objects.Instance}
|
1487 | 6a1434d7 | Andrea Spadaccini | @param instance: the instance that is being migrated
|
1488 | 6a1434d7 | Andrea Spadaccini | @rtype: L{objects.MigrationStatus}
|
1489 | 6a1434d7 | Andrea Spadaccini | @return: the status of the current migration (one of
|
1490 | 6a1434d7 | Andrea Spadaccini | L{constants.HV_MIGRATION_VALID_STATUSES}), plus any additional
|
1491 | 6a1434d7 | Andrea Spadaccini | progress info that can be retrieved from the hypervisor
|
1492 | 6a1434d7 | Andrea Spadaccini | @raise RPCFail: If the migration status cannot be retrieved
|
1493 | 6a1434d7 | Andrea Spadaccini |
|
1494 | 6a1434d7 | Andrea Spadaccini | """
|
1495 | 6a1434d7 | Andrea Spadaccini | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1496 | 6a1434d7 | Andrea Spadaccini | try:
|
1497 | 6a1434d7 | Andrea Spadaccini | return hyper.GetMigrationStatus(instance)
|
1498 | 6a1434d7 | Andrea Spadaccini | except Exception, err: # pylint: disable=W0703 |
1499 | 6a1434d7 | Andrea Spadaccini | _Fail("Failed to get migration status: %s", err, exc=True) |
1500 | 6a1434d7 | Andrea Spadaccini | |
1501 | 6a1434d7 | Andrea Spadaccini | |
1502 | 821d1bd1 | Iustin Pop | def BlockdevCreate(disk, size, owner, on_primary, info): |
1503 | a8083063 | Iustin Pop | """Creates a block device for an instance.
|
1504 | a8083063 | Iustin Pop |
|
1505 | b1206984 | Iustin Pop | @type disk: L{objects.Disk}
|
1506 | b1206984 | Iustin Pop | @param disk: the object describing the disk we should create
|
1507 | b1206984 | Iustin Pop | @type size: int
|
1508 | b1206984 | Iustin Pop | @param size: the size of the physical underlying device, in MiB
|
1509 | b1206984 | Iustin Pop | @type owner: str
|
1510 | b1206984 | Iustin Pop | @param owner: the name of the instance for which disk is created,
|
1511 | b1206984 | Iustin Pop | used for device cache data
|
1512 | b1206984 | Iustin Pop | @type on_primary: boolean
|
1513 | b1206984 | Iustin Pop | @param on_primary: indicates if it is the primary node or not
|
1514 | b1206984 | Iustin Pop | @type info: string
|
1515 | b1206984 | Iustin Pop | @param info: string that will be sent to the physical device
|
1516 | b1206984 | Iustin Pop | creation, used for example to set (LVM) tags on LVs
|
1517 | b1206984 | Iustin Pop |
|
1518 | b1206984 | Iustin Pop | @return: the new unique_id of the device (this can sometime be
|
1519 | b1206984 | Iustin Pop | computed only after creation), or None. On secondary nodes,
|
1520 | b1206984 | Iustin Pop | it's not required to return anything.
|
1521 | a8083063 | Iustin Pop |
|
1522 | a8083063 | Iustin Pop | """
|
1523 | d0c8c01d | Iustin Pop | # TODO: remove the obsolete "size" argument
|
1524 | b459a848 | Andrea Spadaccini | # pylint: disable=W0613
|
1525 | a8083063 | Iustin Pop | clist = [] |
1526 | a8083063 | Iustin Pop | if disk.children:
|
1527 | a8083063 | Iustin Pop | for child in disk.children: |
1528 | 1063abd1 | Iustin Pop | try:
|
1529 | 1063abd1 | Iustin Pop | crdev = _RecursiveAssembleBD(child, owner, on_primary) |
1530 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1531 | 2cc6781a | Iustin Pop | _Fail("Can't assemble device %s: %s", child, err)
|
1532 | a8083063 | Iustin Pop | if on_primary or disk.AssembleOnSecondary(): |
1533 | a8083063 | Iustin Pop | # we need the children open in case the device itself has to
|
1534 | a8083063 | Iustin Pop | # be assembled
|
1535 | 1063abd1 | Iustin Pop | try:
|
1536 | b459a848 | Andrea Spadaccini | # pylint: disable=E1103
|
1537 | 1063abd1 | Iustin Pop | crdev.Open() |
1538 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1539 | 2cc6781a | Iustin Pop | _Fail("Can't make child '%s' read-write: %s", child, err)
|
1540 | a8083063 | Iustin Pop | clist.append(crdev) |
1541 | a8083063 | Iustin Pop | |
1542 | dab69e97 | Iustin Pop | try:
|
1543 | 94dcbdb0 | Andrea Spadaccini | device = bdev.Create(disk, clist) |
1544 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1545 | 2cc6781a | Iustin Pop | _Fail("Can't create block device: %s", err)
|
1546 | 6c626518 | Iustin Pop | |
1547 | a8083063 | Iustin Pop | if on_primary or disk.AssembleOnSecondary(): |
1548 | 1063abd1 | Iustin Pop | try:
|
1549 | 1063abd1 | Iustin Pop | device.Assemble() |
1550 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1551 | 2cc6781a | Iustin Pop | _Fail("Can't assemble device after creation, unusual event: %s", err)
|
1552 | a8083063 | Iustin Pop | if on_primary or disk.OpenOnSecondary(): |
1553 | 1063abd1 | Iustin Pop | try:
|
1554 | 1063abd1 | Iustin Pop | device.Open(force=True)
|
1555 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1556 | 2cc6781a | Iustin Pop | _Fail("Can't make device r/w after creation, unusual event: %s", err)
|
1557 | 3f78eef2 | Iustin Pop | DevCacheManager.UpdateCache(device.dev_path, owner, |
1558 | 3f78eef2 | Iustin Pop | on_primary, disk.iv_name) |
1559 | a0c3fea1 | Michael Hanselmann | |
1560 | a0c3fea1 | Michael Hanselmann | device.SetInfo(info) |
1561 | a0c3fea1 | Michael Hanselmann | |
1562 | c26a6bd2 | Iustin Pop | return device.unique_id
|
1563 | a8083063 | Iustin Pop | |
1564 | a8083063 | Iustin Pop | |
1565 | da63bb4e | René Nussbaumer | def _WipeDevice(path, offset, size): |
1566 | 69dd363f | René Nussbaumer | """This function actually wipes the device.
|
1567 | 69dd363f | René Nussbaumer |
|
1568 | 69dd363f | René Nussbaumer | @param path: The path to the device to wipe
|
1569 | da63bb4e | René Nussbaumer | @param offset: The offset in MiB in the file
|
1570 | da63bb4e | René Nussbaumer | @param size: The size in MiB to write
|
1571 | 69dd363f | René Nussbaumer |
|
1572 | 69dd363f | René Nussbaumer | """
|
1573 | da63bb4e | René Nussbaumer | cmd = [constants.DD_CMD, "if=/dev/zero", "seek=%d" % offset, |
1574 | da63bb4e | René Nussbaumer | "bs=%d" % constants.WIPE_BLOCK_SIZE, "oflag=direct", "of=%s" % path, |
1575 | da63bb4e | René Nussbaumer | "count=%d" % size]
|
1576 | da63bb4e | René Nussbaumer | result = utils.RunCmd(cmd) |
1577 | 69dd363f | René Nussbaumer | |
1578 | 69dd363f | René Nussbaumer | if result.failed:
|
1579 | 69dd363f | René Nussbaumer | _Fail("Wipe command '%s' exited with error: %s; output: %s", result.cmd,
|
1580 | 69dd363f | René Nussbaumer | result.fail_reason, result.output) |
1581 | 69dd363f | René Nussbaumer | |
1582 | 69dd363f | René Nussbaumer | |
1583 | da63bb4e | René Nussbaumer | def BlockdevWipe(disk, offset, size): |
1584 | 69dd363f | René Nussbaumer | """Wipes a block device.
|
1585 | 69dd363f | René Nussbaumer |
|
1586 | 69dd363f | René Nussbaumer | @type disk: L{objects.Disk}
|
1587 | 69dd363f | René Nussbaumer | @param disk: the disk object we want to wipe
|
1588 | da63bb4e | René Nussbaumer | @type offset: int
|
1589 | da63bb4e | René Nussbaumer | @param offset: The offset in MiB in the file
|
1590 | da63bb4e | René Nussbaumer | @type size: int
|
1591 | da63bb4e | René Nussbaumer | @param size: The size in MiB to write
|
1592 | 69dd363f | René Nussbaumer |
|
1593 | 69dd363f | René Nussbaumer | """
|
1594 | 69dd363f | René Nussbaumer | try:
|
1595 | 69dd363f | René Nussbaumer | rdev = _RecursiveFindBD(disk) |
1596 | da63bb4e | René Nussbaumer | except errors.BlockDeviceError:
|
1597 | da63bb4e | René Nussbaumer | rdev = None
|
1598 | da63bb4e | René Nussbaumer | |
1599 | da63bb4e | René Nussbaumer | if not rdev: |
1600 | da63bb4e | René Nussbaumer | _Fail("Cannot execute wipe for device %s: device not found", disk.iv_name)
|
1601 | da63bb4e | René Nussbaumer | |
1602 | da63bb4e | René Nussbaumer | # Do cross verify some of the parameters
|
1603 | da63bb4e | René Nussbaumer | if offset > rdev.size:
|
1604 | da63bb4e | René Nussbaumer | _Fail("Offset is bigger than device size")
|
1605 | da63bb4e | René Nussbaumer | if (offset + size) > rdev.size:
|
1606 | da63bb4e | René Nussbaumer | _Fail("The provided offset and size to wipe is bigger than device size")
|
1607 | 69dd363f | René Nussbaumer | |
1608 | da63bb4e | René Nussbaumer | _WipeDevice(rdev.dev_path, offset, size) |
1609 | 69dd363f | René Nussbaumer | |
1610 | 69dd363f | René Nussbaumer | |
1611 | 5119c79e | René Nussbaumer | def BlockdevPauseResumeSync(disks, pause): |
1612 | 5119c79e | René Nussbaumer | """Pause or resume the sync of the block device.
|
1613 | 5119c79e | René Nussbaumer |
|
1614 | 0f39886a | René Nussbaumer | @type disks: list of L{objects.Disk}
|
1615 | 0f39886a | René Nussbaumer | @param disks: the disks object we want to pause/resume
|
1616 | 5119c79e | René Nussbaumer | @type pause: bool
|
1617 | 5119c79e | René Nussbaumer | @param pause: Wheater to pause or resume
|
1618 | 5119c79e | René Nussbaumer |
|
1619 | 5119c79e | René Nussbaumer | """
|
1620 | 5119c79e | René Nussbaumer | success = [] |
1621 | 5119c79e | René Nussbaumer | for disk in disks: |
1622 | 5119c79e | René Nussbaumer | try:
|
1623 | 5119c79e | René Nussbaumer | rdev = _RecursiveFindBD(disk) |
1624 | 5119c79e | René Nussbaumer | except errors.BlockDeviceError:
|
1625 | 5119c79e | René Nussbaumer | rdev = None
|
1626 | 5119c79e | René Nussbaumer | |
1627 | 5119c79e | René Nussbaumer | if not rdev: |
1628 | 5119c79e | René Nussbaumer | success.append((False, ("Cannot change sync for device %s:" |
1629 | 5119c79e | René Nussbaumer | " device not found" % disk.iv_name)))
|
1630 | 5119c79e | René Nussbaumer | continue
|
1631 | 5119c79e | René Nussbaumer | |
1632 | 5119c79e | René Nussbaumer | result = rdev.PauseResumeSync(pause) |
1633 | 5119c79e | René Nussbaumer | |
1634 | 5119c79e | René Nussbaumer | if result:
|
1635 | 5119c79e | René Nussbaumer | success.append((result, None))
|
1636 | 5119c79e | René Nussbaumer | else:
|
1637 | 5119c79e | René Nussbaumer | if pause:
|
1638 | 5119c79e | René Nussbaumer | msg = "Pause"
|
1639 | 5119c79e | René Nussbaumer | else:
|
1640 | 5119c79e | René Nussbaumer | msg = "Resume"
|
1641 | 5119c79e | René Nussbaumer | success.append((result, "%s for device %s failed" % (msg, disk.iv_name)))
|
1642 | 5119c79e | René Nussbaumer | |
1643 | 5119c79e | René Nussbaumer | return success
|
1644 | 5119c79e | René Nussbaumer | |
1645 | 5119c79e | René Nussbaumer | |
1646 | 821d1bd1 | Iustin Pop | def BlockdevRemove(disk): |
1647 | a8083063 | Iustin Pop | """Remove a block device.
|
1648 | a8083063 | Iustin Pop |
|
1649 | 10c2650b | Iustin Pop | @note: This is intended to be called recursively.
|
1650 | 10c2650b | Iustin Pop |
|
1651 | c41eea6e | Iustin Pop | @type disk: L{objects.Disk}
|
1652 | 10c2650b | Iustin Pop | @param disk: the disk object we should remove
|
1653 | 10c2650b | Iustin Pop | @rtype: boolean
|
1654 | 10c2650b | Iustin Pop | @return: the success of the operation
|
1655 | a8083063 | Iustin Pop |
|
1656 | a8083063 | Iustin Pop | """
|
1657 | e1bc0878 | Iustin Pop | msgs = [] |
1658 | a8083063 | Iustin Pop | try:
|
1659 | bca2e7f4 | Iustin Pop | rdev = _RecursiveFindBD(disk) |
1660 | a8083063 | Iustin Pop | except errors.BlockDeviceError, err:
|
1661 | a8083063 | Iustin Pop | # probably can't attach
|
1662 | 18682bca | Iustin Pop | logging.info("Can't attach to device %s in remove", disk)
|
1663 | a8083063 | Iustin Pop | rdev = None
|
1664 | a8083063 | Iustin Pop | if rdev is not None: |
1665 | 3f78eef2 | Iustin Pop | r_path = rdev.dev_path |
1666 | e1bc0878 | Iustin Pop | try:
|
1667 | 0c6c04ec | Iustin Pop | rdev.Remove() |
1668 | e1bc0878 | Iustin Pop | except errors.BlockDeviceError, err:
|
1669 | e1bc0878 | Iustin Pop | msgs.append(str(err))
|
1670 | c26a6bd2 | Iustin Pop | if not msgs: |
1671 | 3f78eef2 | Iustin Pop | DevCacheManager.RemoveCache(r_path) |
1672 | e1bc0878 | Iustin Pop | |
1673 | a8083063 | Iustin Pop | if disk.children:
|
1674 | a8083063 | Iustin Pop | for child in disk.children: |
1675 | c26a6bd2 | Iustin Pop | try:
|
1676 | c26a6bd2 | Iustin Pop | BlockdevRemove(child) |
1677 | c26a6bd2 | Iustin Pop | except RPCFail, err:
|
1678 | c26a6bd2 | Iustin Pop | msgs.append(str(err))
|
1679 | e1bc0878 | Iustin Pop | |
1680 | c26a6bd2 | Iustin Pop | if msgs:
|
1681 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
1682 | afdc3985 | Iustin Pop | |
1683 | a8083063 | Iustin Pop | |
1684 | 3f78eef2 | Iustin Pop | def _RecursiveAssembleBD(disk, owner, as_primary): |
1685 | a8083063 | Iustin Pop | """Activate a block device for an instance.
|
1686 | a8083063 | Iustin Pop |
|
1687 | a8083063 | Iustin Pop | This is run on the primary and secondary nodes for an instance.
|
1688 | a8083063 | Iustin Pop |
|
1689 | 10c2650b | Iustin Pop | @note: this function is called recursively.
|
1690 | a8083063 | Iustin Pop |
|
1691 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1692 | 10c2650b | Iustin Pop | @param disk: the disk we try to assemble
|
1693 | 10c2650b | Iustin Pop | @type owner: str
|
1694 | 10c2650b | Iustin Pop | @param owner: the name of the instance which owns the disk
|
1695 | 10c2650b | Iustin Pop | @type as_primary: boolean
|
1696 | 10c2650b | Iustin Pop | @param as_primary: if we should make the block device
|
1697 | 10c2650b | Iustin Pop | read/write
|
1698 | a8083063 | Iustin Pop |
|
1699 | 10c2650b | Iustin Pop | @return: the assembled device or None (in case no device
|
1700 | 10c2650b | Iustin Pop | was assembled)
|
1701 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: in case there is an error
|
1702 | 10c2650b | Iustin Pop | during the activation of the children or the device
|
1703 | 10c2650b | Iustin Pop | itself
|
1704 | a8083063 | Iustin Pop |
|
1705 | a8083063 | Iustin Pop | """
|
1706 | a8083063 | Iustin Pop | children = [] |
1707 | a8083063 | Iustin Pop | if disk.children:
|
1708 | fc1dc9d7 | Iustin Pop | mcn = disk.ChildrenNeeded() |
1709 | fc1dc9d7 | Iustin Pop | if mcn == -1: |
1710 | fc1dc9d7 | Iustin Pop | mcn = 0 # max number of Nones allowed |
1711 | fc1dc9d7 | Iustin Pop | else:
|
1712 | fc1dc9d7 | Iustin Pop | mcn = len(disk.children) - mcn # max number of Nones |
1713 | a8083063 | Iustin Pop | for chld_disk in disk.children: |
1714 | fc1dc9d7 | Iustin Pop | try:
|
1715 | fc1dc9d7 | Iustin Pop | cdev = _RecursiveAssembleBD(chld_disk, owner, as_primary) |
1716 | fc1dc9d7 | Iustin Pop | except errors.BlockDeviceError, err:
|
1717 | 7803d4d3 | Iustin Pop | if children.count(None) >= mcn: |
1718 | fc1dc9d7 | Iustin Pop | raise
|
1719 | fc1dc9d7 | Iustin Pop | cdev = None
|
1720 | 1063abd1 | Iustin Pop | logging.error("Error in child activation (but continuing): %s",
|
1721 | 1063abd1 | Iustin Pop | str(err))
|
1722 | fc1dc9d7 | Iustin Pop | children.append(cdev) |
1723 | a8083063 | Iustin Pop | |
1724 | a8083063 | Iustin Pop | if as_primary or disk.AssembleOnSecondary(): |
1725 | 94dcbdb0 | Andrea Spadaccini | r_dev = bdev.Assemble(disk, children) |
1726 | a8083063 | Iustin Pop | result = r_dev |
1727 | a8083063 | Iustin Pop | if as_primary or disk.OpenOnSecondary(): |
1728 | a8083063 | Iustin Pop | r_dev.Open() |
1729 | 3f78eef2 | Iustin Pop | DevCacheManager.UpdateCache(r_dev.dev_path, owner, |
1730 | 3f78eef2 | Iustin Pop | as_primary, disk.iv_name) |
1731 | 3f78eef2 | Iustin Pop | |
1732 | a8083063 | Iustin Pop | else:
|
1733 | a8083063 | Iustin Pop | result = True
|
1734 | a8083063 | Iustin Pop | return result
|
1735 | a8083063 | Iustin Pop | |
1736 | a8083063 | Iustin Pop | |
1737 | c417e115 | Iustin Pop | def BlockdevAssemble(disk, owner, as_primary, idx): |
1738 | a8083063 | Iustin Pop | """Activate a block device for an instance.
|
1739 | a8083063 | Iustin Pop |
|
1740 | a8083063 | Iustin Pop | This is a wrapper over _RecursiveAssembleBD.
|
1741 | a8083063 | Iustin Pop |
|
1742 | b1206984 | Iustin Pop | @rtype: str or boolean
|
1743 | b1206984 | Iustin Pop | @return: a C{/dev/...} path for primary nodes, and
|
1744 | b1206984 | Iustin Pop | C{True} for secondary nodes
|
1745 | a8083063 | Iustin Pop |
|
1746 | a8083063 | Iustin Pop | """
|
1747 | 53c14ef1 | Iustin Pop | try:
|
1748 | 53c14ef1 | Iustin Pop | result = _RecursiveAssembleBD(disk, owner, as_primary) |
1749 | 53c14ef1 | Iustin Pop | if isinstance(result, bdev.BlockDev): |
1750 | b459a848 | Andrea Spadaccini | # pylint: disable=E1103
|
1751 | 53c14ef1 | Iustin Pop | result = result.dev_path |
1752 | c417e115 | Iustin Pop | if as_primary:
|
1753 | c417e115 | Iustin Pop | _SymlinkBlockDev(owner, result, idx) |
1754 | 53c14ef1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1755 | afdc3985 | Iustin Pop | _Fail("Error while assembling disk: %s", err, exc=True) |
1756 | c417e115 | Iustin Pop | except OSError, err: |
1757 | c417e115 | Iustin Pop | _Fail("Error while symlinking disk: %s", err, exc=True) |
1758 | afdc3985 | Iustin Pop | |
1759 | c26a6bd2 | Iustin Pop | return result
|
1760 | a8083063 | Iustin Pop | |
1761 | a8083063 | Iustin Pop | |
1762 | 821d1bd1 | Iustin Pop | def BlockdevShutdown(disk): |
1763 | a8083063 | Iustin Pop | """Shut down a block device.
|
1764 | a8083063 | Iustin Pop |
|
1765 | 5bbd3f7f | Michael Hanselmann | First, if the device is assembled (Attach() is successful), then
|
1766 | c41eea6e | Iustin Pop | the device is shutdown. Then the children of the device are
|
1767 | c41eea6e | Iustin Pop | shutdown.
|
1768 | a8083063 | Iustin Pop |
|
1769 | a8083063 | Iustin Pop | This function is called recursively. Note that we don't cache the
|
1770 | a8083063 | Iustin Pop | children or such, as oppossed to assemble, shutdown of different
|
1771 | a8083063 | Iustin Pop | devices doesn't require that the upper device was active.
|
1772 | a8083063 | Iustin Pop |
|
1773 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1774 | 10c2650b | Iustin Pop | @param disk: the description of the disk we should
|
1775 | 10c2650b | Iustin Pop | shutdown
|
1776 | c26a6bd2 | Iustin Pop | @rtype: None
|
1777 | 10c2650b | Iustin Pop |
|
1778 | a8083063 | Iustin Pop | """
|
1779 | cacfd1fd | Iustin Pop | msgs = [] |
1780 | a8083063 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
1781 | a8083063 | Iustin Pop | if r_dev is not None: |
1782 | 3f78eef2 | Iustin Pop | r_path = r_dev.dev_path |
1783 | cacfd1fd | Iustin Pop | try:
|
1784 | 746f7476 | Iustin Pop | r_dev.Shutdown() |
1785 | 746f7476 | Iustin Pop | DevCacheManager.RemoveCache(r_path) |
1786 | cacfd1fd | Iustin Pop | except errors.BlockDeviceError, err:
|
1787 | cacfd1fd | Iustin Pop | msgs.append(str(err))
|
1788 | 746f7476 | Iustin Pop | |
1789 | a8083063 | Iustin Pop | if disk.children:
|
1790 | a8083063 | Iustin Pop | for child in disk.children: |
1791 | c26a6bd2 | Iustin Pop | try:
|
1792 | c26a6bd2 | Iustin Pop | BlockdevShutdown(child) |
1793 | c26a6bd2 | Iustin Pop | except RPCFail, err:
|
1794 | c26a6bd2 | Iustin Pop | msgs.append(str(err))
|
1795 | 746f7476 | Iustin Pop | |
1796 | c26a6bd2 | Iustin Pop | if msgs:
|
1797 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
1798 | a8083063 | Iustin Pop | |
1799 | a8083063 | Iustin Pop | |
1800 | 821d1bd1 | Iustin Pop | def BlockdevAddchildren(parent_cdev, new_cdevs): |
1801 | 153d9724 | Iustin Pop | """Extend a mirrored block device.
|
1802 | a8083063 | Iustin Pop |
|
1803 | 10c2650b | Iustin Pop | @type parent_cdev: L{objects.Disk}
|
1804 | 10c2650b | Iustin Pop | @param parent_cdev: the disk to which we should add children
|
1805 | 10c2650b | Iustin Pop | @type new_cdevs: list of L{objects.Disk}
|
1806 | 10c2650b | Iustin Pop | @param new_cdevs: the list of children which we should add
|
1807 | c26a6bd2 | Iustin Pop | @rtype: None
|
1808 | 10c2650b | Iustin Pop |
|
1809 | a8083063 | Iustin Pop | """
|
1810 | bca2e7f4 | Iustin Pop | parent_bdev = _RecursiveFindBD(parent_cdev) |
1811 | 153d9724 | Iustin Pop | if parent_bdev is None: |
1812 | 2cc6781a | Iustin Pop | _Fail("Can't find parent device '%s' in add children", parent_cdev)
|
1813 | 153d9724 | Iustin Pop | new_bdevs = [_RecursiveFindBD(disk) for disk in new_cdevs] |
1814 | 153d9724 | Iustin Pop | if new_bdevs.count(None) > 0: |
1815 | 2cc6781a | Iustin Pop | _Fail("Can't find new device(s) to add: %s:%s", new_bdevs, new_cdevs)
|
1816 | 153d9724 | Iustin Pop | parent_bdev.AddChildren(new_bdevs) |
1817 | a8083063 | Iustin Pop | |
1818 | a8083063 | Iustin Pop | |
1819 | 821d1bd1 | Iustin Pop | def BlockdevRemovechildren(parent_cdev, new_cdevs): |
1820 | 153d9724 | Iustin Pop | """Shrink a mirrored block device.
|
1821 | a8083063 | Iustin Pop |
|
1822 | 10c2650b | Iustin Pop | @type parent_cdev: L{objects.Disk}
|
1823 | 10c2650b | Iustin Pop | @param parent_cdev: the disk from which we should remove children
|
1824 | 10c2650b | Iustin Pop | @type new_cdevs: list of L{objects.Disk}
|
1825 | 10c2650b | Iustin Pop | @param new_cdevs: the list of children which we should remove
|
1826 | c26a6bd2 | Iustin Pop | @rtype: None
|
1827 | 10c2650b | Iustin Pop |
|
1828 | a8083063 | Iustin Pop | """
|
1829 | 153d9724 | Iustin Pop | parent_bdev = _RecursiveFindBD(parent_cdev) |
1830 | 153d9724 | Iustin Pop | if parent_bdev is None: |
1831 | 2cc6781a | Iustin Pop | _Fail("Can't find parent device '%s' in remove children", parent_cdev)
|
1832 | e739bd57 | Iustin Pop | devs = [] |
1833 | e739bd57 | Iustin Pop | for disk in new_cdevs: |
1834 | e739bd57 | Iustin Pop | rpath = disk.StaticDevPath() |
1835 | e739bd57 | Iustin Pop | if rpath is None: |
1836 | e739bd57 | Iustin Pop | bd = _RecursiveFindBD(disk) |
1837 | e739bd57 | Iustin Pop | if bd is None: |
1838 | 2cc6781a | Iustin Pop | _Fail("Can't find device %s while removing children", disk)
|
1839 | e739bd57 | Iustin Pop | else:
|
1840 | e739bd57 | Iustin Pop | devs.append(bd.dev_path) |
1841 | e739bd57 | Iustin Pop | else:
|
1842 | e51db2a6 | Iustin Pop | if not utils.IsNormAbsPath(rpath): |
1843 | e51db2a6 | Iustin Pop | _Fail("Strange path returned from StaticDevPath: '%s'", rpath)
|
1844 | e739bd57 | Iustin Pop | devs.append(rpath) |
1845 | e739bd57 | Iustin Pop | parent_bdev.RemoveChildren(devs) |
1846 | a8083063 | Iustin Pop | |
1847 | a8083063 | Iustin Pop | |
1848 | 821d1bd1 | Iustin Pop | def BlockdevGetmirrorstatus(disks): |
1849 | a8083063 | Iustin Pop | """Get the mirroring status of a list of devices.
|
1850 | a8083063 | Iustin Pop |
|
1851 | 10c2650b | Iustin Pop | @type disks: list of L{objects.Disk}
|
1852 | 10c2650b | Iustin Pop | @param disks: the list of disks which we should query
|
1853 | 10c2650b | Iustin Pop | @rtype: disk
|
1854 | c6a9dffa | Michael Hanselmann | @return: List of L{objects.BlockDevStatus}, one for each disk
|
1855 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: if any of the disks cannot be
|
1856 | 10c2650b | Iustin Pop | found
|
1857 | a8083063 | Iustin Pop |
|
1858 | a8083063 | Iustin Pop | """
|
1859 | a8083063 | Iustin Pop | stats = [] |
1860 | a8083063 | Iustin Pop | for dsk in disks: |
1861 | a8083063 | Iustin Pop | rbd = _RecursiveFindBD(dsk) |
1862 | a8083063 | Iustin Pop | if rbd is None: |
1863 | 3efa9051 | Iustin Pop | _Fail("Can't find device %s", dsk)
|
1864 | 96acbc09 | Michael Hanselmann | |
1865 | 36145b12 | Michael Hanselmann | stats.append(rbd.CombinedSyncStatus()) |
1866 | 96acbc09 | Michael Hanselmann | |
1867 | c26a6bd2 | Iustin Pop | return stats
|
1868 | a8083063 | Iustin Pop | |
1869 | a8083063 | Iustin Pop | |
1870 | c6a9dffa | Michael Hanselmann | def BlockdevGetmirrorstatusMulti(disks): |
1871 | c6a9dffa | Michael Hanselmann | """Get the mirroring status of a list of devices.
|
1872 | c6a9dffa | Michael Hanselmann |
|
1873 | c6a9dffa | Michael Hanselmann | @type disks: list of L{objects.Disk}
|
1874 | c6a9dffa | Michael Hanselmann | @param disks: the list of disks which we should query
|
1875 | c6a9dffa | Michael Hanselmann | @rtype: disk
|
1876 | c6a9dffa | Michael Hanselmann | @return: List of tuples, (bool, status), one for each disk; bool denotes
|
1877 | c6a9dffa | Michael Hanselmann | success/failure, status is L{objects.BlockDevStatus} on success, string
|
1878 | c6a9dffa | Michael Hanselmann | otherwise
|
1879 | c6a9dffa | Michael Hanselmann |
|
1880 | c6a9dffa | Michael Hanselmann | """
|
1881 | c6a9dffa | Michael Hanselmann | result = [] |
1882 | c6a9dffa | Michael Hanselmann | for disk in disks: |
1883 | c6a9dffa | Michael Hanselmann | try:
|
1884 | c6a9dffa | Michael Hanselmann | rbd = _RecursiveFindBD(disk) |
1885 | c6a9dffa | Michael Hanselmann | if rbd is None: |
1886 | c6a9dffa | Michael Hanselmann | result.append((False, "Can't find device %s" % disk)) |
1887 | c6a9dffa | Michael Hanselmann | continue
|
1888 | c6a9dffa | Michael Hanselmann | |
1889 | c6a9dffa | Michael Hanselmann | status = rbd.CombinedSyncStatus() |
1890 | c6a9dffa | Michael Hanselmann | except errors.BlockDeviceError, err:
|
1891 | c6a9dffa | Michael Hanselmann | logging.exception("Error while getting disk status")
|
1892 | c6a9dffa | Michael Hanselmann | result.append((False, str(err))) |
1893 | c6a9dffa | Michael Hanselmann | else:
|
1894 | c6a9dffa | Michael Hanselmann | result.append((True, status))
|
1895 | c6a9dffa | Michael Hanselmann | |
1896 | c6a9dffa | Michael Hanselmann | assert len(disks) == len(result) |
1897 | c6a9dffa | Michael Hanselmann | |
1898 | c6a9dffa | Michael Hanselmann | return result
|
1899 | c6a9dffa | Michael Hanselmann | |
1900 | c6a9dffa | Michael Hanselmann | |
1901 | bca2e7f4 | Iustin Pop | def _RecursiveFindBD(disk): |
1902 | a8083063 | Iustin Pop | """Check if a device is activated.
|
1903 | a8083063 | Iustin Pop |
|
1904 | 5bbd3f7f | Michael Hanselmann | If so, return information about the real device.
|
1905 | a8083063 | Iustin Pop |
|
1906 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1907 | 10c2650b | Iustin Pop | @param disk: the disk object we need to find
|
1908 | a8083063 | Iustin Pop |
|
1909 | 10c2650b | Iustin Pop | @return: None if the device can't be found,
|
1910 | 10c2650b | Iustin Pop | otherwise the device instance
|
1911 | a8083063 | Iustin Pop |
|
1912 | a8083063 | Iustin Pop | """
|
1913 | a8083063 | Iustin Pop | children = [] |
1914 | a8083063 | Iustin Pop | if disk.children:
|
1915 | a8083063 | Iustin Pop | for chdisk in disk.children: |
1916 | a8083063 | Iustin Pop | children.append(_RecursiveFindBD(chdisk)) |
1917 | a8083063 | Iustin Pop | |
1918 | 94dcbdb0 | Andrea Spadaccini | return bdev.FindDevice(disk, children)
|
1919 | a8083063 | Iustin Pop | |
1920 | a8083063 | Iustin Pop | |
1921 | f2e07bb4 | Michael Hanselmann | def _OpenRealBD(disk): |
1922 | f2e07bb4 | Michael Hanselmann | """Opens the underlying block device of a disk.
|
1923 | f2e07bb4 | Michael Hanselmann |
|
1924 | f2e07bb4 | Michael Hanselmann | @type disk: L{objects.Disk}
|
1925 | f2e07bb4 | Michael Hanselmann | @param disk: the disk object we want to open
|
1926 | f2e07bb4 | Michael Hanselmann |
|
1927 | f2e07bb4 | Michael Hanselmann | """
|
1928 | f2e07bb4 | Michael Hanselmann | real_disk = _RecursiveFindBD(disk) |
1929 | f2e07bb4 | Michael Hanselmann | if real_disk is None: |
1930 | f2e07bb4 | Michael Hanselmann | _Fail("Block device '%s' is not set up", disk)
|
1931 | f2e07bb4 | Michael Hanselmann | |
1932 | f2e07bb4 | Michael Hanselmann | real_disk.Open() |
1933 | f2e07bb4 | Michael Hanselmann | |
1934 | f2e07bb4 | Michael Hanselmann | return real_disk
|
1935 | f2e07bb4 | Michael Hanselmann | |
1936 | f2e07bb4 | Michael Hanselmann | |
1937 | 821d1bd1 | Iustin Pop | def BlockdevFind(disk): |
1938 | a8083063 | Iustin Pop | """Check if a device is activated.
|
1939 | a8083063 | Iustin Pop |
|
1940 | 5bbd3f7f | Michael Hanselmann | If it is, return information about the real device.
|
1941 | a8083063 | Iustin Pop |
|
1942 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1943 | 10c2650b | Iustin Pop | @param disk: the disk to find
|
1944 | 96acbc09 | Michael Hanselmann | @rtype: None or objects.BlockDevStatus
|
1945 | 96acbc09 | Michael Hanselmann | @return: None if the disk cannot be found, otherwise a the current
|
1946 | 96acbc09 | Michael Hanselmann | information
|
1947 | a8083063 | Iustin Pop |
|
1948 | a8083063 | Iustin Pop | """
|
1949 | 23829f6f | Iustin Pop | try:
|
1950 | 23829f6f | Iustin Pop | rbd = _RecursiveFindBD(disk) |
1951 | 23829f6f | Iustin Pop | except errors.BlockDeviceError, err:
|
1952 | 2cc6781a | Iustin Pop | _Fail("Failed to find device: %s", err, exc=True) |
1953 | 96acbc09 | Michael Hanselmann | |
1954 | a8083063 | Iustin Pop | if rbd is None: |
1955 | c26a6bd2 | Iustin Pop | return None |
1956 | 96acbc09 | Michael Hanselmann | |
1957 | 96acbc09 | Michael Hanselmann | return rbd.GetSyncStatus()
|
1958 | a8083063 | Iustin Pop | |
1959 | a8083063 | Iustin Pop | |
1960 | 968a7623 | Iustin Pop | def BlockdevGetsize(disks): |
1961 | 968a7623 | Iustin Pop | """Computes the size of the given disks.
|
1962 | 968a7623 | Iustin Pop |
|
1963 | 968a7623 | Iustin Pop | If a disk is not found, returns None instead.
|
1964 | 968a7623 | Iustin Pop |
|
1965 | 968a7623 | Iustin Pop | @type disks: list of L{objects.Disk}
|
1966 | 968a7623 | Iustin Pop | @param disks: the list of disk to compute the size for
|
1967 | 968a7623 | Iustin Pop | @rtype: list
|
1968 | 968a7623 | Iustin Pop | @return: list with elements None if the disk cannot be found,
|
1969 | 968a7623 | Iustin Pop | otherwise the size
|
1970 | 968a7623 | Iustin Pop |
|
1971 | 968a7623 | Iustin Pop | """
|
1972 | 968a7623 | Iustin Pop | result = [] |
1973 | 968a7623 | Iustin Pop | for cf in disks: |
1974 | 968a7623 | Iustin Pop | try:
|
1975 | 968a7623 | Iustin Pop | rbd = _RecursiveFindBD(cf) |
1976 | 1122eb25 | Iustin Pop | except errors.BlockDeviceError:
|
1977 | 968a7623 | Iustin Pop | result.append(None)
|
1978 | 968a7623 | Iustin Pop | continue
|
1979 | 968a7623 | Iustin Pop | if rbd is None: |
1980 | 968a7623 | Iustin Pop | result.append(None)
|
1981 | 968a7623 | Iustin Pop | else:
|
1982 | 968a7623 | Iustin Pop | result.append(rbd.GetActualSize()) |
1983 | 968a7623 | Iustin Pop | return result
|
1984 | 968a7623 | Iustin Pop | |
1985 | 968a7623 | Iustin Pop | |
1986 | 858f3d18 | Iustin Pop | def BlockdevExport(disk, dest_node, dest_path, cluster_name): |
1987 | 858f3d18 | Iustin Pop | """Export a block device to a remote node.
|
1988 | 858f3d18 | Iustin Pop |
|
1989 | 858f3d18 | Iustin Pop | @type disk: L{objects.Disk}
|
1990 | 858f3d18 | Iustin Pop | @param disk: the description of the disk to export
|
1991 | 858f3d18 | Iustin Pop | @type dest_node: str
|
1992 | 858f3d18 | Iustin Pop | @param dest_node: the destination node to export to
|
1993 | 858f3d18 | Iustin Pop | @type dest_path: str
|
1994 | 858f3d18 | Iustin Pop | @param dest_path: the destination path on the target node
|
1995 | 858f3d18 | Iustin Pop | @type cluster_name: str
|
1996 | 858f3d18 | Iustin Pop | @param cluster_name: the cluster name, needed for SSH hostalias
|
1997 | 858f3d18 | Iustin Pop | @rtype: None
|
1998 | 858f3d18 | Iustin Pop |
|
1999 | 858f3d18 | Iustin Pop | """
|
2000 | f2e07bb4 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2001 | 858f3d18 | Iustin Pop | |
2002 | 858f3d18 | Iustin Pop | # the block size on the read dd is 1MiB to match our units
|
2003 | 858f3d18 | Iustin Pop | expcmd = utils.BuildShellCmd("set -e; set -o pipefail; "
|
2004 | 858f3d18 | Iustin Pop | "dd if=%s bs=1048576 count=%s",
|
2005 | 858f3d18 | Iustin Pop | real_disk.dev_path, str(disk.size))
|
2006 | 858f3d18 | Iustin Pop | |
2007 | 858f3d18 | Iustin Pop | # we set here a smaller block size as, due to ssh buffering, more
|
2008 | 858f3d18 | Iustin Pop | # than 64-128k will mostly ignored; we use nocreat to fail if the
|
2009 | 858f3d18 | Iustin Pop | # device is not already there or we pass a wrong path; we use
|
2010 | 858f3d18 | Iustin Pop | # notrunc to no attempt truncate on an LV device; we use oflag=dsync
|
2011 | 858f3d18 | Iustin Pop | # to not buffer too much memory; this means that at best, we flush
|
2012 | 858f3d18 | Iustin Pop | # every 64k, which will not be very fast
|
2013 | 858f3d18 | Iustin Pop | destcmd = utils.BuildShellCmd("dd of=%s conv=nocreat,notrunc bs=65536"
|
2014 | 858f3d18 | Iustin Pop | " oflag=dsync", dest_path)
|
2015 | 858f3d18 | Iustin Pop | |
2016 | 858f3d18 | Iustin Pop | remotecmd = _GetSshRunner(cluster_name).BuildCmd(dest_node, |
2017 | 858f3d18 | Iustin Pop | constants.GANETI_RUNAS, |
2018 | 858f3d18 | Iustin Pop | destcmd) |
2019 | 858f3d18 | Iustin Pop | |
2020 | 858f3d18 | Iustin Pop | # all commands have been checked, so we're safe to combine them
|
2021 | d0c8c01d | Iustin Pop | command = "|".join([expcmd, utils.ShellQuoteArgs(remotecmd)])
|
2022 | 858f3d18 | Iustin Pop | |
2023 | 858f3d18 | Iustin Pop | result = utils.RunCmd(["bash", "-c", command]) |
2024 | 858f3d18 | Iustin Pop | |
2025 | 858f3d18 | Iustin Pop | if result.failed:
|
2026 | 858f3d18 | Iustin Pop | _Fail("Disk copy command '%s' returned error: %s"
|
2027 | 858f3d18 | Iustin Pop | " output: %s", command, result.fail_reason, result.output)
|
2028 | 858f3d18 | Iustin Pop | |
2029 | 858f3d18 | Iustin Pop | |
2030 | a8083063 | Iustin Pop | def UploadFile(file_name, data, mode, uid, gid, atime, mtime): |
2031 | a8083063 | Iustin Pop | """Write a file to the filesystem.
|
2032 | a8083063 | Iustin Pop |
|
2033 | a8083063 | Iustin Pop | This allows the master to overwrite(!) a file. It will only perform
|
2034 | a8083063 | Iustin Pop | the operation if the file belongs to a list of configuration files.
|
2035 | a8083063 | Iustin Pop |
|
2036 | 10c2650b | Iustin Pop | @type file_name: str
|
2037 | 10c2650b | Iustin Pop | @param file_name: the target file name
|
2038 | 10c2650b | Iustin Pop | @type data: str
|
2039 | 10c2650b | Iustin Pop | @param data: the new contents of the file
|
2040 | 10c2650b | Iustin Pop | @type mode: int
|
2041 | 10c2650b | Iustin Pop | @param mode: the mode to give the file (can be None)
|
2042 | 9a914f7a | René Nussbaumer | @type uid: string
|
2043 | 9a914f7a | René Nussbaumer | @param uid: the owner of the file
|
2044 | 9a914f7a | René Nussbaumer | @type gid: string
|
2045 | 9a914f7a | René Nussbaumer | @param gid: the group of the file
|
2046 | 10c2650b | Iustin Pop | @type atime: float
|
2047 | 10c2650b | Iustin Pop | @param atime: the atime to set on the file (can be None)
|
2048 | 10c2650b | Iustin Pop | @type mtime: float
|
2049 | 10c2650b | Iustin Pop | @param mtime: the mtime to set on the file (can be None)
|
2050 | c26a6bd2 | Iustin Pop | @rtype: None
|
2051 | 10c2650b | Iustin Pop |
|
2052 | a8083063 | Iustin Pop | """
|
2053 | a8083063 | Iustin Pop | if not os.path.isabs(file_name): |
2054 | 2cc6781a | Iustin Pop | _Fail("Filename passed to UploadFile is not absolute: '%s'", file_name)
|
2055 | a8083063 | Iustin Pop | |
2056 | 360b0dc2 | Iustin Pop | if file_name not in _ALLOWED_UPLOAD_FILES: |
2057 | 2cc6781a | Iustin Pop | _Fail("Filename passed to UploadFile not in allowed upload targets: '%s'",
|
2058 | 2cc6781a | Iustin Pop | file_name) |
2059 | a8083063 | Iustin Pop | |
2060 | 12bce260 | Michael Hanselmann | raw_data = _Decompress(data) |
2061 | 12bce260 | Michael Hanselmann | |
2062 | 9a914f7a | René Nussbaumer | if not (isinstance(uid, basestring) and isinstance(gid, basestring)): |
2063 | 9a914f7a | René Nussbaumer | _Fail("Invalid username/groupname type")
|
2064 | 9a914f7a | René Nussbaumer | |
2065 | 9a914f7a | René Nussbaumer | getents = runtime.GetEnts() |
2066 | 9a914f7a | René Nussbaumer | uid = getents.LookupUser(uid) |
2067 | 9a914f7a | René Nussbaumer | gid = getents.LookupGroup(gid) |
2068 | 9a914f7a | René Nussbaumer | |
2069 | 8f065ae2 | Iustin Pop | utils.SafeWriteFile(file_name, None,
|
2070 | 8f065ae2 | Iustin Pop | data=raw_data, mode=mode, uid=uid, gid=gid, |
2071 | 8f065ae2 | Iustin Pop | atime=atime, mtime=mtime) |
2072 | a8083063 | Iustin Pop | |
2073 | 386b57af | Iustin Pop | |
2074 | b2f29800 | René Nussbaumer | def RunOob(oob_program, command, node, timeout): |
2075 | b2f29800 | René Nussbaumer | """Executes oob_program with given command on given node.
|
2076 | b2f29800 | René Nussbaumer |
|
2077 | b2f29800 | René Nussbaumer | @param oob_program: The path to the executable oob_program
|
2078 | b2f29800 | René Nussbaumer | @param command: The command to invoke on oob_program
|
2079 | b2f29800 | René Nussbaumer | @param node: The node given as an argument to the program
|
2080 | b2f29800 | René Nussbaumer | @param timeout: Timeout after which we kill the oob program
|
2081 | b2f29800 | René Nussbaumer |
|
2082 | b2f29800 | René Nussbaumer | @return: stdout
|
2083 | b2f29800 | René Nussbaumer | @raise RPCFail: If execution fails for some reason
|
2084 | b2f29800 | René Nussbaumer |
|
2085 | b2f29800 | René Nussbaumer | """
|
2086 | b2f29800 | René Nussbaumer | result = utils.RunCmd([oob_program, command, node], timeout=timeout) |
2087 | b2f29800 | René Nussbaumer | |
2088 | b2f29800 | René Nussbaumer | if result.failed:
|
2089 | b2f29800 | René Nussbaumer | _Fail("'%s' failed with reason '%s'; output: %s", result.cmd,
|
2090 | b2f29800 | René Nussbaumer | result.fail_reason, result.output) |
2091 | b2f29800 | René Nussbaumer | |
2092 | b2f29800 | René Nussbaumer | return result.stdout
|
2093 | b2f29800 | René Nussbaumer | |
2094 | b2f29800 | René Nussbaumer | |
2095 | 03d1dba2 | Michael Hanselmann | def WriteSsconfFiles(values): |
2096 | 89b14f05 | Iustin Pop | """Update all ssconf files.
|
2097 | 89b14f05 | Iustin Pop |
|
2098 | 89b14f05 | Iustin Pop | Wrapper around the SimpleStore.WriteFiles.
|
2099 | 89b14f05 | Iustin Pop |
|
2100 | 89b14f05 | Iustin Pop | """
|
2101 | 89b14f05 | Iustin Pop | ssconf.SimpleStore().WriteFiles(values) |
2102 | 6ddc95ec | Michael Hanselmann | |
2103 | 6ddc95ec | Michael Hanselmann | |
2104 | c19f9810 | Iustin Pop | def _OSOndiskAPIVersion(os_dir): |
2105 | 2f8598a5 | Alexander Schreiber | """Compute and return the API version of a given OS.
|
2106 | a8083063 | Iustin Pop |
|
2107 | c19f9810 | Iustin Pop | This function will try to read the API version of the OS residing in
|
2108 | c19f9810 | Iustin Pop | the 'os_dir' directory.
|
2109 | 7c3d51d4 | Guido Trotter |
|
2110 | 10c2650b | Iustin Pop | @type os_dir: str
|
2111 | c19f9810 | Iustin Pop | @param os_dir: the directory in which we should look for the OS
|
2112 | 8e70b181 | Iustin Pop | @rtype: tuple
|
2113 | 8e70b181 | Iustin Pop | @return: tuple (status, data) with status denoting the validity and
|
2114 | 8e70b181 | Iustin Pop | data holding either the vaid versions or an error message
|
2115 | a8083063 | Iustin Pop |
|
2116 | a8083063 | Iustin Pop | """
|
2117 | e02b9114 | Iustin Pop | api_file = utils.PathJoin(os_dir, constants.OS_API_FILE) |
2118 | a8083063 | Iustin Pop | |
2119 | a8083063 | Iustin Pop | try:
|
2120 | a8083063 | Iustin Pop | st = os.stat(api_file) |
2121 | a8083063 | Iustin Pop | except EnvironmentError, err: |
2122 | b6b45e0d | Guido Trotter | return False, ("Required file '%s' not found under path %s: %s" % |
2123 | eb93b673 | Guido Trotter | (constants.OS_API_FILE, os_dir, utils.ErrnoOrStr(err))) |
2124 | a8083063 | Iustin Pop | |
2125 | a8083063 | Iustin Pop | if not stat.S_ISREG(stat.S_IFMT(st.st_mode)): |
2126 | b6b45e0d | Guido Trotter | return False, ("File '%s' in %s is not a regular file" % |
2127 | b6b45e0d | Guido Trotter | (constants.OS_API_FILE, os_dir)) |
2128 | a8083063 | Iustin Pop | |
2129 | a8083063 | Iustin Pop | try:
|
2130 | 3374afa9 | Guido Trotter | api_versions = utils.ReadFile(api_file).splitlines() |
2131 | a8083063 | Iustin Pop | except EnvironmentError, err: |
2132 | 255dcebd | Iustin Pop | return False, ("Error while reading the API version file at %s: %s" % |
2133 | eb93b673 | Guido Trotter | (api_file, utils.ErrnoOrStr(err))) |
2134 | a8083063 | Iustin Pop | |
2135 | a8083063 | Iustin Pop | try:
|
2136 | 63b9b186 | Guido Trotter | api_versions = [int(version.strip()) for version in api_versions] |
2137 | a8083063 | Iustin Pop | except (TypeError, ValueError), err: |
2138 | 255dcebd | Iustin Pop | return False, ("API version(s) can't be converted to integer: %s" % |
2139 | 255dcebd | Iustin Pop | str(err))
|
2140 | a8083063 | Iustin Pop | |
2141 | 255dcebd | Iustin Pop | return True, api_versions |
2142 | a8083063 | Iustin Pop | |
2143 | 386b57af | Iustin Pop | |
2144 | 7c3d51d4 | Guido Trotter | def DiagnoseOS(top_dirs=None): |
2145 | a8083063 | Iustin Pop | """Compute the validity for all OSes.
|
2146 | a8083063 | Iustin Pop |
|
2147 | 10c2650b | Iustin Pop | @type top_dirs: list
|
2148 | 10c2650b | Iustin Pop | @param top_dirs: the list of directories in which to
|
2149 | 10c2650b | Iustin Pop | search (if not given defaults to
|
2150 | 10c2650b | Iustin Pop | L{constants.OS_SEARCH_PATH})
|
2151 | 10c2650b | Iustin Pop | @rtype: list of L{objects.OS}
|
2152 | bad78e66 | Iustin Pop | @return: a list of tuples (name, path, status, diagnose, variants,
|
2153 | bad78e66 | Iustin Pop | parameters, api_version) for all (potential) OSes under all
|
2154 | bad78e66 | Iustin Pop | search paths, where:
|
2155 | 255dcebd | Iustin Pop | - name is the (potential) OS name
|
2156 | 255dcebd | Iustin Pop | - path is the full path to the OS
|
2157 | 255dcebd | Iustin Pop | - status True/False is the validity of the OS
|
2158 | 255dcebd | Iustin Pop | - diagnose is the error message for an invalid OS, otherwise empty
|
2159 | ba00557a | Guido Trotter | - variants is a list of supported OS variants, if any
|
2160 | c7d04a6b | Iustin Pop | - parameters is a list of (name, help) parameters, if any
|
2161 | bad78e66 | Iustin Pop | - api_version is a list of support OS API versions
|
2162 | a8083063 | Iustin Pop |
|
2163 | a8083063 | Iustin Pop | """
|
2164 | 7c3d51d4 | Guido Trotter | if top_dirs is None: |
2165 | 7c3d51d4 | Guido Trotter | top_dirs = constants.OS_SEARCH_PATH |
2166 | a8083063 | Iustin Pop | |
2167 | a8083063 | Iustin Pop | result = [] |
2168 | 65fe4693 | Iustin Pop | for dir_name in top_dirs: |
2169 | 65fe4693 | Iustin Pop | if os.path.isdir(dir_name):
|
2170 | 7c3d51d4 | Guido Trotter | try:
|
2171 | 65fe4693 | Iustin Pop | f_names = utils.ListVisibleFiles(dir_name) |
2172 | 7c3d51d4 | Guido Trotter | except EnvironmentError, err: |
2173 | 29921401 | Iustin Pop | logging.exception("Can't list the OS directory %s: %s", dir_name, err)
|
2174 | 7c3d51d4 | Guido Trotter | break
|
2175 | 7c3d51d4 | Guido Trotter | for name in f_names: |
2176 | e02b9114 | Iustin Pop | os_path = utils.PathJoin(dir_name, name) |
2177 | 255dcebd | Iustin Pop | status, os_inst = _TryOSFromDisk(name, base_dir=dir_name) |
2178 | 255dcebd | Iustin Pop | if status:
|
2179 | 255dcebd | Iustin Pop | diagnose = ""
|
2180 | ba00557a | Guido Trotter | variants = os_inst.supported_variants |
2181 | c7d04a6b | Iustin Pop | parameters = os_inst.supported_parameters |
2182 | bad78e66 | Iustin Pop | api_versions = os_inst.api_versions |
2183 | 255dcebd | Iustin Pop | else:
|
2184 | 255dcebd | Iustin Pop | diagnose = os_inst |
2185 | bad78e66 | Iustin Pop | variants = parameters = api_versions = [] |
2186 | bad78e66 | Iustin Pop | result.append((name, os_path, status, diagnose, variants, |
2187 | bad78e66 | Iustin Pop | parameters, api_versions)) |
2188 | a8083063 | Iustin Pop | |
2189 | c26a6bd2 | Iustin Pop | return result
|
2190 | a8083063 | Iustin Pop | |
2191 | a8083063 | Iustin Pop | |
2192 | 255dcebd | Iustin Pop | def _TryOSFromDisk(name, base_dir=None): |
2193 | a8083063 | Iustin Pop | """Create an OS instance from disk.
|
2194 | a8083063 | Iustin Pop |
|
2195 | a8083063 | Iustin Pop | This function will return an OS instance if the given name is a
|
2196 | 8e70b181 | Iustin Pop | valid OS name.
|
2197 | a8083063 | Iustin Pop |
|
2198 | 8ee4dc80 | Guido Trotter | @type base_dir: string
|
2199 | 8ee4dc80 | Guido Trotter | @keyword base_dir: Base directory containing OS installations.
|
2200 | 8ee4dc80 | Guido Trotter | Defaults to a search in all the OS_SEARCH_PATH dirs.
|
2201 | 255dcebd | Iustin Pop | @rtype: tuple
|
2202 | 255dcebd | Iustin Pop | @return: success and either the OS instance if we find a valid one,
|
2203 | 255dcebd | Iustin Pop | or error message
|
2204 | 7c3d51d4 | Guido Trotter |
|
2205 | a8083063 | Iustin Pop | """
|
2206 | 56bcd3f4 | Guido Trotter | if base_dir is None: |
2207 | 57c177af | Iustin Pop | os_dir = utils.FindFile(name, constants.OS_SEARCH_PATH, os.path.isdir) |
2208 | c34c0cfd | Iustin Pop | else:
|
2209 | f95c81bf | Iustin Pop | os_dir = utils.FindFile(name, [base_dir], os.path.isdir) |
2210 | f95c81bf | Iustin Pop | |
2211 | f95c81bf | Iustin Pop | if os_dir is None: |
2212 | 5c0433d6 | Iustin Pop | return False, "Directory for OS %s not found in search path" % name |
2213 | a8083063 | Iustin Pop | |
2214 | c19f9810 | Iustin Pop | status, api_versions = _OSOndiskAPIVersion(os_dir) |
2215 | 255dcebd | Iustin Pop | if not status: |
2216 | 255dcebd | Iustin Pop | # push the error up
|
2217 | 255dcebd | Iustin Pop | return status, api_versions
|
2218 | a8083063 | Iustin Pop | |
2219 | d1a7d66f | Guido Trotter | if not constants.OS_API_VERSIONS.intersection(api_versions): |
2220 | 255dcebd | Iustin Pop | return False, ("API version mismatch for path '%s': found %s, want %s." % |
2221 | d1a7d66f | Guido Trotter | (os_dir, api_versions, constants.OS_API_VERSIONS)) |
2222 | a8083063 | Iustin Pop | |
2223 | 35007011 | Iustin Pop | # OS Files dictionary, we will populate it with the absolute path
|
2224 | 35007011 | Iustin Pop | # names; if the value is True, then it is a required file, otherwise
|
2225 | 35007011 | Iustin Pop | # an optional one
|
2226 | 35007011 | Iustin Pop | os_files = dict.fromkeys(constants.OS_SCRIPTS, True) |
2227 | a8083063 | Iustin Pop | |
2228 | 95075fba | Guido Trotter | if max(api_versions) >= constants.OS_API_V15: |
2229 | 35007011 | Iustin Pop | os_files[constants.OS_VARIANTS_FILE] = False
|
2230 | 95075fba | Guido Trotter | |
2231 | c7d04a6b | Iustin Pop | if max(api_versions) >= constants.OS_API_V20: |
2232 | 35007011 | Iustin Pop | os_files[constants.OS_PARAMETERS_FILE] = True
|
2233 | c7d04a6b | Iustin Pop | else:
|
2234 | c7d04a6b | Iustin Pop | del os_files[constants.OS_SCRIPT_VERIFY]
|
2235 | c7d04a6b | Iustin Pop | |
2236 | 35007011 | Iustin Pop | for (filename, required) in os_files.items(): |
2237 | e02b9114 | Iustin Pop | os_files[filename] = utils.PathJoin(os_dir, filename) |
2238 | a8083063 | Iustin Pop | |
2239 | a8083063 | Iustin Pop | try:
|
2240 | ea79fc15 | Michael Hanselmann | st = os.stat(os_files[filename]) |
2241 | a8083063 | Iustin Pop | except EnvironmentError, err: |
2242 | 35007011 | Iustin Pop | if err.errno == errno.ENOENT and not required: |
2243 | 35007011 | Iustin Pop | del os_files[filename]
|
2244 | 35007011 | Iustin Pop | continue
|
2245 | 41ba4061 | Guido Trotter | return False, ("File '%s' under path '%s' is missing (%s)" % |
2246 | eb93b673 | Guido Trotter | (filename, os_dir, utils.ErrnoOrStr(err))) |
2247 | a8083063 | Iustin Pop | |
2248 | a8083063 | Iustin Pop | if not stat.S_ISREG(stat.S_IFMT(st.st_mode)): |
2249 | 41ba4061 | Guido Trotter | return False, ("File '%s' under path '%s' is not a regular file" % |
2250 | ea79fc15 | Michael Hanselmann | (filename, os_dir)) |
2251 | 255dcebd | Iustin Pop | |
2252 | ea79fc15 | Michael Hanselmann | if filename in constants.OS_SCRIPTS: |
2253 | 0757c107 | Guido Trotter | if stat.S_IMODE(st.st_mode) & stat.S_IXUSR != stat.S_IXUSR:
|
2254 | 0757c107 | Guido Trotter | return False, ("File '%s' under path '%s' is not executable" % |
2255 | ea79fc15 | Michael Hanselmann | (filename, os_dir)) |
2256 | 0757c107 | Guido Trotter | |
2257 | 845da3e8 | Iustin Pop | variants = [] |
2258 | 95075fba | Guido Trotter | if constants.OS_VARIANTS_FILE in os_files: |
2259 | 95075fba | Guido Trotter | variants_file = os_files[constants.OS_VARIANTS_FILE] |
2260 | 95075fba | Guido Trotter | try:
|
2261 | 95075fba | Guido Trotter | variants = utils.ReadFile(variants_file).splitlines() |
2262 | 95075fba | Guido Trotter | except EnvironmentError, err: |
2263 | 35007011 | Iustin Pop | # we accept missing files, but not other errors
|
2264 | 35007011 | Iustin Pop | if err.errno != errno.ENOENT:
|
2265 | 35007011 | Iustin Pop | return False, ("Error while reading the OS variants file at %s: %s" % |
2266 | eb93b673 | Guido Trotter | (variants_file, utils.ErrnoOrStr(err))) |
2267 | 0757c107 | Guido Trotter | |
2268 | c7d04a6b | Iustin Pop | parameters = [] |
2269 | c7d04a6b | Iustin Pop | if constants.OS_PARAMETERS_FILE in os_files: |
2270 | c7d04a6b | Iustin Pop | parameters_file = os_files[constants.OS_PARAMETERS_FILE] |
2271 | c7d04a6b | Iustin Pop | try:
|
2272 | c7d04a6b | Iustin Pop | parameters = utils.ReadFile(parameters_file).splitlines() |
2273 | c7d04a6b | Iustin Pop | except EnvironmentError, err: |
2274 | c7d04a6b | Iustin Pop | return False, ("Error while reading the OS parameters file at %s: %s" % |
2275 | eb93b673 | Guido Trotter | (parameters_file, utils.ErrnoOrStr(err))) |
2276 | c7d04a6b | Iustin Pop | parameters = [v.split(None, 1) for v in parameters] |
2277 | c7d04a6b | Iustin Pop | |
2278 | 8e70b181 | Iustin Pop | os_obj = objects.OS(name=name, path=os_dir, |
2279 | 41ba4061 | Guido Trotter | create_script=os_files[constants.OS_SCRIPT_CREATE], |
2280 | 41ba4061 | Guido Trotter | export_script=os_files[constants.OS_SCRIPT_EXPORT], |
2281 | 41ba4061 | Guido Trotter | import_script=os_files[constants.OS_SCRIPT_IMPORT], |
2282 | 41ba4061 | Guido Trotter | rename_script=os_files[constants.OS_SCRIPT_RENAME], |
2283 | 40684c3a | Iustin Pop | verify_script=os_files.get(constants.OS_SCRIPT_VERIFY, |
2284 | 40684c3a | Iustin Pop | None),
|
2285 | 95075fba | Guido Trotter | supported_variants=variants, |
2286 | c7d04a6b | Iustin Pop | supported_parameters=parameters, |
2287 | 255dcebd | Iustin Pop | api_versions=api_versions) |
2288 | 255dcebd | Iustin Pop | return True, os_obj |
2289 | 255dcebd | Iustin Pop | |
2290 | 255dcebd | Iustin Pop | |
2291 | 255dcebd | Iustin Pop | def OSFromDisk(name, base_dir=None): |
2292 | 255dcebd | Iustin Pop | """Create an OS instance from disk.
|
2293 | 255dcebd | Iustin Pop |
|
2294 | 255dcebd | Iustin Pop | This function will return an OS instance if the given name is a
|
2295 | 255dcebd | Iustin Pop | valid OS name. Otherwise, it will raise an appropriate
|
2296 | 255dcebd | Iustin Pop | L{RPCFail} exception, detailing why this is not a valid OS.
|
2297 | 255dcebd | Iustin Pop |
|
2298 | 255dcebd | Iustin Pop | This is just a wrapper over L{_TryOSFromDisk}, which doesn't raise
|
2299 | 255dcebd | Iustin Pop | an exception but returns true/false status data.
|
2300 | 255dcebd | Iustin Pop |
|
2301 | 255dcebd | Iustin Pop | @type base_dir: string
|
2302 | 255dcebd | Iustin Pop | @keyword base_dir: Base directory containing OS installations.
|
2303 | 255dcebd | Iustin Pop | Defaults to a search in all the OS_SEARCH_PATH dirs.
|
2304 | 255dcebd | Iustin Pop | @rtype: L{objects.OS}
|
2305 | 255dcebd | Iustin Pop | @return: the OS instance if we find a valid one
|
2306 | 255dcebd | Iustin Pop | @raise RPCFail: if we don't find a valid OS
|
2307 | 255dcebd | Iustin Pop |
|
2308 | 255dcebd | Iustin Pop | """
|
2309 | 870dc44c | Iustin Pop | name_only = objects.OS.GetName(name) |
2310 | 6ee7102a | Guido Trotter | status, payload = _TryOSFromDisk(name_only, base_dir) |
2311 | 255dcebd | Iustin Pop | |
2312 | 255dcebd | Iustin Pop | if not status: |
2313 | 255dcebd | Iustin Pop | _Fail(payload) |
2314 | a8083063 | Iustin Pop | |
2315 | 255dcebd | Iustin Pop | return payload
|
2316 | a8083063 | Iustin Pop | |
2317 | a8083063 | Iustin Pop | |
2318 | a025e535 | Vitaly Kuznetsov | def OSCoreEnv(os_name, inst_os, os_params, debug=0): |
2319 | efaa9b06 | Iustin Pop | """Calculate the basic environment for an os script.
|
2320 | 2266edb2 | Guido Trotter |
|
2321 | a025e535 | Vitaly Kuznetsov | @type os_name: str
|
2322 | a025e535 | Vitaly Kuznetsov | @param os_name: full operating system name (including variant)
|
2323 | 099c52ad | Iustin Pop | @type inst_os: L{objects.OS}
|
2324 | 099c52ad | Iustin Pop | @param inst_os: operating system for which the environment is being built
|
2325 | 1bdcbbab | Iustin Pop | @type os_params: dict
|
2326 | 1bdcbbab | Iustin Pop | @param os_params: the OS parameters
|
2327 | 2266edb2 | Guido Trotter | @type debug: integer
|
2328 | 10c2650b | Iustin Pop | @param debug: debug level (0 or 1, for OS Api 10)
|
2329 | 2266edb2 | Guido Trotter | @rtype: dict
|
2330 | 2266edb2 | Guido Trotter | @return: dict of environment variables
|
2331 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: if the block device
|
2332 | 10c2650b | Iustin Pop | cannot be found
|
2333 | 2266edb2 | Guido Trotter |
|
2334 | 2266edb2 | Guido Trotter | """
|
2335 | 2266edb2 | Guido Trotter | result = {} |
2336 | 099c52ad | Iustin Pop | api_version = \ |
2337 | 099c52ad | Iustin Pop | max(constants.OS_API_VERSIONS.intersection(inst_os.api_versions))
|
2338 | d0c8c01d | Iustin Pop | result["OS_API_VERSION"] = "%d" % api_version |
2339 | d0c8c01d | Iustin Pop | result["OS_NAME"] = inst_os.name
|
2340 | d0c8c01d | Iustin Pop | result["DEBUG_LEVEL"] = "%d" % debug |
2341 | efaa9b06 | Iustin Pop | |
2342 | efaa9b06 | Iustin Pop | # OS variants
|
2343 | 35007011 | Iustin Pop | if api_version >= constants.OS_API_V15 and inst_os.supported_variants: |
2344 | 870dc44c | Iustin Pop | variant = objects.OS.GetVariant(os_name) |
2345 | 870dc44c | Iustin Pop | if not variant: |
2346 | 099c52ad | Iustin Pop | variant = inst_os.supported_variants[0]
|
2347 | 35007011 | Iustin Pop | else:
|
2348 | 35007011 | Iustin Pop | variant = ""
|
2349 | 35007011 | Iustin Pop | result["OS_VARIANT"] = variant
|
2350 | efaa9b06 | Iustin Pop | |
2351 | 1bdcbbab | Iustin Pop | # OS params
|
2352 | 1bdcbbab | Iustin Pop | for pname, pvalue in os_params.items(): |
2353 | d0c8c01d | Iustin Pop | result["OSP_%s" % pname.upper()] = pvalue
|
2354 | 1bdcbbab | Iustin Pop | |
2355 | efaa9b06 | Iustin Pop | return result
|
2356 | efaa9b06 | Iustin Pop | |
2357 | efaa9b06 | Iustin Pop | |
2358 | efaa9b06 | Iustin Pop | def OSEnvironment(instance, inst_os, debug=0): |
2359 | efaa9b06 | Iustin Pop | """Calculate the environment for an os script.
|
2360 | efaa9b06 | Iustin Pop |
|
2361 | efaa9b06 | Iustin Pop | @type instance: L{objects.Instance}
|
2362 | efaa9b06 | Iustin Pop | @param instance: target instance for the os script run
|
2363 | efaa9b06 | Iustin Pop | @type inst_os: L{objects.OS}
|
2364 | efaa9b06 | Iustin Pop | @param inst_os: operating system for which the environment is being built
|
2365 | efaa9b06 | Iustin Pop | @type debug: integer
|
2366 | efaa9b06 | Iustin Pop | @param debug: debug level (0 or 1, for OS Api 10)
|
2367 | efaa9b06 | Iustin Pop | @rtype: dict
|
2368 | efaa9b06 | Iustin Pop | @return: dict of environment variables
|
2369 | efaa9b06 | Iustin Pop | @raise errors.BlockDeviceError: if the block device
|
2370 | efaa9b06 | Iustin Pop | cannot be found
|
2371 | efaa9b06 | Iustin Pop |
|
2372 | efaa9b06 | Iustin Pop | """
|
2373 | a025e535 | Vitaly Kuznetsov | result = OSCoreEnv(instance.os, inst_os, instance.osparams, debug=debug) |
2374 | efaa9b06 | Iustin Pop | |
2375 | 519719fd | Marco Casavecchia | for attr in ["name", "os", "uuid", "ctime", "mtime", "primary_node"]: |
2376 | f2165b8a | Iustin Pop | result["INSTANCE_%s" % attr.upper()] = str(getattr(instance, attr)) |
2377 | f2165b8a | Iustin Pop | |
2378 | d0c8c01d | Iustin Pop | result["HYPERVISOR"] = instance.hypervisor
|
2379 | d0c8c01d | Iustin Pop | result["DISK_COUNT"] = "%d" % len(instance.disks) |
2380 | d0c8c01d | Iustin Pop | result["NIC_COUNT"] = "%d" % len(instance.nics) |
2381 | d0c8c01d | Iustin Pop | result["INSTANCE_SECONDARY_NODES"] = \
|
2382 | d0c8c01d | Iustin Pop | ("%s" % " ".join(instance.secondary_nodes)) |
2383 | efaa9b06 | Iustin Pop | |
2384 | efaa9b06 | Iustin Pop | # Disks
|
2385 | 2266edb2 | Guido Trotter | for idx, disk in enumerate(instance.disks): |
2386 | f2e07bb4 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2387 | d0c8c01d | Iustin Pop | result["DISK_%d_PATH" % idx] = real_disk.dev_path
|
2388 | d0c8c01d | Iustin Pop | result["DISK_%d_ACCESS" % idx] = disk.mode
|
2389 | 2266edb2 | Guido Trotter | if constants.HV_DISK_TYPE in instance.hvparams: |
2390 | d0c8c01d | Iustin Pop | result["DISK_%d_FRONTEND_TYPE" % idx] = \
|
2391 | 2266edb2 | Guido Trotter | instance.hvparams[constants.HV_DISK_TYPE] |
2392 | 2266edb2 | Guido Trotter | if disk.dev_type in constants.LDS_BLOCK: |
2393 | d0c8c01d | Iustin Pop | result["DISK_%d_BACKEND_TYPE" % idx] = "block" |
2394 | 2266edb2 | Guido Trotter | elif disk.dev_type == constants.LD_FILE:
|
2395 | d0c8c01d | Iustin Pop | result["DISK_%d_BACKEND_TYPE" % idx] = \
|
2396 | d0c8c01d | Iustin Pop | "file:%s" % disk.physical_id[0] |
2397 | efaa9b06 | Iustin Pop | |
2398 | efaa9b06 | Iustin Pop | # NICs
|
2399 | 2266edb2 | Guido Trotter | for idx, nic in enumerate(instance.nics): |
2400 | d0c8c01d | Iustin Pop | result["NIC_%d_MAC" % idx] = nic.mac
|
2401 | 2266edb2 | Guido Trotter | if nic.ip:
|
2402 | d0c8c01d | Iustin Pop | result["NIC_%d_IP" % idx] = nic.ip
|
2403 | d0c8c01d | Iustin Pop | result["NIC_%d_MODE" % idx] = nic.nicparams[constants.NIC_MODE]
|
2404 | 1ba9227f | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
2405 | d0c8c01d | Iustin Pop | result["NIC_%d_BRIDGE" % idx] = nic.nicparams[constants.NIC_LINK]
|
2406 | 1ba9227f | Guido Trotter | if nic.nicparams[constants.NIC_LINK]:
|
2407 | d0c8c01d | Iustin Pop | result["NIC_%d_LINK" % idx] = nic.nicparams[constants.NIC_LINK]
|
2408 | 2266edb2 | Guido Trotter | if constants.HV_NIC_TYPE in instance.hvparams: |
2409 | d0c8c01d | Iustin Pop | result["NIC_%d_FRONTEND_TYPE" % idx] = \
|
2410 | 2266edb2 | Guido Trotter | instance.hvparams[constants.HV_NIC_TYPE] |
2411 | 2266edb2 | Guido Trotter | |
2412 | efaa9b06 | Iustin Pop | # HV/BE params
|
2413 | 67fc3042 | Iustin Pop | for source, kind in [(instance.beparams, "BE"), (instance.hvparams, "HV")]: |
2414 | 67fc3042 | Iustin Pop | for key, value in source.items(): |
2415 | 030b218a | Iustin Pop | result["INSTANCE_%s_%s" % (kind, key)] = str(value) |
2416 | 67fc3042 | Iustin Pop | |
2417 | 2266edb2 | Guido Trotter | return result
|
2418 | a8083063 | Iustin Pop | |
2419 | f2e07bb4 | Michael Hanselmann | |
2420 | a59faf4b | Iustin Pop | def BlockdevGrow(disk, amount, dryrun): |
2421 | 594609c0 | Iustin Pop | """Grow a stack of block devices.
|
2422 | 594609c0 | Iustin Pop |
|
2423 | 594609c0 | Iustin Pop | This function is called recursively, with the childrens being the
|
2424 | 10c2650b | Iustin Pop | first ones to resize.
|
2425 | 594609c0 | Iustin Pop |
|
2426 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
2427 | 10c2650b | Iustin Pop | @param disk: the disk to be grown
|
2428 | a59faf4b | Iustin Pop | @type amount: integer
|
2429 | a59faf4b | Iustin Pop | @param amount: the amount (in mebibytes) to grow with
|
2430 | a59faf4b | Iustin Pop | @type dryrun: boolean
|
2431 | a59faf4b | Iustin Pop | @param dryrun: whether to execute the operation in simulation mode
|
2432 | a59faf4b | Iustin Pop | only, without actually increasing the size
|
2433 | 10c2650b | Iustin Pop | @rtype: (status, result)
|
2434 | a59faf4b | Iustin Pop | @return: a tuple with the status of the operation (True/False), and
|
2435 | a59faf4b | Iustin Pop | the errors message if status is False
|
2436 | 594609c0 | Iustin Pop |
|
2437 | 594609c0 | Iustin Pop | """
|
2438 | 594609c0 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
2439 | 594609c0 | Iustin Pop | if r_dev is None: |
2440 | afdc3985 | Iustin Pop | _Fail("Cannot find block device %s", disk)
|
2441 | 594609c0 | Iustin Pop | |
2442 | 594609c0 | Iustin Pop | try:
|
2443 | a59faf4b | Iustin Pop | r_dev.Grow(amount, dryrun) |
2444 | 594609c0 | Iustin Pop | except errors.BlockDeviceError, err:
|
2445 | 2cc6781a | Iustin Pop | _Fail("Failed to grow block device: %s", err, exc=True) |
2446 | 594609c0 | Iustin Pop | |
2447 | 594609c0 | Iustin Pop | |
2448 | 821d1bd1 | Iustin Pop | def BlockdevSnapshot(disk): |
2449 | a8083063 | Iustin Pop | """Create a snapshot copy of a block device.
|
2450 | a8083063 | Iustin Pop |
|
2451 | a8083063 | Iustin Pop | This function is called recursively, and the snapshot is actually created
|
2452 | a8083063 | Iustin Pop | just for the leaf lvm backend device.
|
2453 | a8083063 | Iustin Pop |
|
2454 | e9e9263d | Guido Trotter | @type disk: L{objects.Disk}
|
2455 | e9e9263d | Guido Trotter | @param disk: the disk to be snapshotted
|
2456 | e9e9263d | Guido Trotter | @rtype: string
|
2457 | 800ac399 | Iustin Pop | @return: snapshot disk ID as (vg, lv)
|
2458 | a8083063 | Iustin Pop |
|
2459 | 098c0958 | Michael Hanselmann | """
|
2460 | 433c63aa | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
2461 | 433c63aa | Iustin Pop | if not disk.children: |
2462 | 433c63aa | Iustin Pop | _Fail("DRBD device '%s' without backing storage cannot be snapshotted",
|
2463 | 433c63aa | Iustin Pop | disk.unique_id) |
2464 | 433c63aa | Iustin Pop | return BlockdevSnapshot(disk.children[0]) |
2465 | fe96220b | Iustin Pop | elif disk.dev_type == constants.LD_LV:
|
2466 | a8083063 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
2467 | a8083063 | Iustin Pop | if r_dev is not None: |
2468 | 433c63aa | Iustin Pop | # FIXME: choose a saner value for the snapshot size
|
2469 | a8083063 | Iustin Pop | # let's stay on the safe side and ask for the full size, for now
|
2470 | c26a6bd2 | Iustin Pop | return r_dev.Snapshot(disk.size)
|
2471 | a8083063 | Iustin Pop | else:
|
2472 | 87812fd3 | Iustin Pop | _Fail("Cannot find block device %s", disk)
|
2473 | a8083063 | Iustin Pop | else:
|
2474 | 87812fd3 | Iustin Pop | _Fail("Cannot snapshot non-lvm block device '%s' of type '%s'",
|
2475 | 87812fd3 | Iustin Pop | disk.unique_id, disk.dev_type) |
2476 | a8083063 | Iustin Pop | |
2477 | a8083063 | Iustin Pop | |
2478 | a8083063 | Iustin Pop | def FinalizeExport(instance, snap_disks): |
2479 | a8083063 | Iustin Pop | """Write out the export configuration information.
|
2480 | a8083063 | Iustin Pop |
|
2481 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
2482 | 10c2650b | Iustin Pop | @param instance: the instance which we export, used for
|
2483 | 10c2650b | Iustin Pop | saving configuration
|
2484 | 10c2650b | Iustin Pop | @type snap_disks: list of L{objects.Disk}
|
2485 | 10c2650b | Iustin Pop | @param snap_disks: list of snapshot block devices, which
|
2486 | 10c2650b | Iustin Pop | will be used to get the actual name of the dump file
|
2487 | a8083063 | Iustin Pop |
|
2488 | c26a6bd2 | Iustin Pop | @rtype: None
|
2489 | a8083063 | Iustin Pop |
|
2490 | 098c0958 | Michael Hanselmann | """
|
2491 | c4feafe8 | Iustin Pop | destdir = utils.PathJoin(constants.EXPORT_DIR, instance.name + ".new")
|
2492 | c4feafe8 | Iustin Pop | finaldestdir = utils.PathJoin(constants.EXPORT_DIR, instance.name) |
2493 | a8083063 | Iustin Pop | |
2494 | a8083063 | Iustin Pop | config = objects.SerializableConfigParser() |
2495 | a8083063 | Iustin Pop | |
2496 | a8083063 | Iustin Pop | config.add_section(constants.INISECT_EXP) |
2497 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_EXP, "version", "0") |
2498 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_EXP, "timestamp", "%d" % int(time.time())) |
2499 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_EXP, "source", instance.primary_node)
|
2500 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_EXP, "os", instance.os)
|
2501 | 775b8743 | Michael Hanselmann | config.set(constants.INISECT_EXP, "compression", "none") |
2502 | a8083063 | Iustin Pop | |
2503 | a8083063 | Iustin Pop | config.add_section(constants.INISECT_INS) |
2504 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "name", instance.name)
|
2505 | 1db993d5 | Guido Trotter | config.set(constants.INISECT_INS, "maxmem", "%d" % |
2506 | 1db993d5 | Guido Trotter | instance.beparams[constants.BE_MAXMEM]) |
2507 | 1db993d5 | Guido Trotter | config.set(constants.INISECT_INS, "minmem", "%d" % |
2508 | 1db993d5 | Guido Trotter | instance.beparams[constants.BE_MINMEM]) |
2509 | 1db993d5 | Guido Trotter | # "memory" is deprecated, but useful for exporting to old ganeti versions
|
2510 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "memory", "%d" % |
2511 | 1db993d5 | Guido Trotter | instance.beparams[constants.BE_MAXMEM]) |
2512 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "vcpus", "%d" % |
2513 | 51de46bf | Iustin Pop | instance.beparams[constants.BE_VCPUS]) |
2514 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "disk_template", instance.disk_template)
|
2515 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "hypervisor", instance.hypervisor)
|
2516 | fbb2c636 | Michael Hanselmann | config.set(constants.INISECT_INS, "tags", " ".join(instance.GetTags())) |
2517 | 66f93869 | Manuel Franceschini | |
2518 | 95268cc3 | Iustin Pop | nic_total = 0
|
2519 | a8083063 | Iustin Pop | for nic_count, nic in enumerate(instance.nics): |
2520 | 95268cc3 | Iustin Pop | nic_total += 1
|
2521 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "nic%d_mac" %
|
2522 | d0c8c01d | Iustin Pop | nic_count, "%s" % nic.mac)
|
2523 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "nic%d_ip" % nic_count, "%s" % nic.ip) |
2524 | 6801eb5c | Iustin Pop | for param in constants.NICS_PARAMETER_TYPES: |
2525 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "nic%d_%s" % (nic_count, param),
|
2526 | d0c8c01d | Iustin Pop | "%s" % nic.nicparams.get(param, None)) |
2527 | a8083063 | Iustin Pop | # TODO: redundant: on load can read nics until it doesn't exist
|
2528 | e687ec01 | Michael Hanselmann | config.set(constants.INISECT_INS, "nic_count", "%d" % nic_total) |
2529 | a8083063 | Iustin Pop | |
2530 | 726d7d68 | Iustin Pop | disk_total = 0
|
2531 | a8083063 | Iustin Pop | for disk_count, disk in enumerate(snap_disks): |
2532 | 19d7f90a | Guido Trotter | if disk:
|
2533 | 726d7d68 | Iustin Pop | disk_total += 1
|
2534 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "disk%d_ivname" % disk_count,
|
2535 | d0c8c01d | Iustin Pop | ("%s" % disk.iv_name))
|
2536 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "disk%d_dump" % disk_count,
|
2537 | d0c8c01d | Iustin Pop | ("%s" % disk.physical_id[1])) |
2538 | d0c8c01d | Iustin Pop | config.set(constants.INISECT_INS, "disk%d_size" % disk_count,
|
2539 | d0c8c01d | Iustin Pop | ("%d" % disk.size))
|
2540 | d0c8c01d | Iustin Pop | |
2541 | e687ec01 | Michael Hanselmann | config.set(constants.INISECT_INS, "disk_count", "%d" % disk_total) |
2542 | a8083063 | Iustin Pop | |
2543 | 3c8954ad | Iustin Pop | # New-style hypervisor/backend parameters
|
2544 | 3c8954ad | Iustin Pop | |
2545 | 3c8954ad | Iustin Pop | config.add_section(constants.INISECT_HYP) |
2546 | 3c8954ad | Iustin Pop | for name, value in instance.hvparams.items(): |
2547 | 3c8954ad | Iustin Pop | if name not in constants.HVC_GLOBALS: |
2548 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_HYP, name, str(value))
|
2549 | 3c8954ad | Iustin Pop | |
2550 | 3c8954ad | Iustin Pop | config.add_section(constants.INISECT_BEP) |
2551 | 3c8954ad | Iustin Pop | for name, value in instance.beparams.items(): |
2552 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_BEP, name, str(value))
|
2553 | 3c8954ad | Iustin Pop | |
2554 | 535b49cb | Iustin Pop | config.add_section(constants.INISECT_OSP) |
2555 | 535b49cb | Iustin Pop | for name, value in instance.osparams.items(): |
2556 | 535b49cb | Iustin Pop | config.set(constants.INISECT_OSP, name, str(value))
|
2557 | 535b49cb | Iustin Pop | |
2558 | c4feafe8 | Iustin Pop | utils.WriteFile(utils.PathJoin(destdir, constants.EXPORT_CONF_FILE), |
2559 | 726d7d68 | Iustin Pop | data=config.Dumps()) |
2560 | 56569f4e | Michael Hanselmann | shutil.rmtree(finaldestdir, ignore_errors=True)
|
2561 | a8083063 | Iustin Pop | shutil.move(destdir, finaldestdir) |
2562 | a8083063 | Iustin Pop | |
2563 | a8083063 | Iustin Pop | |
2564 | a8083063 | Iustin Pop | def ExportInfo(dest): |
2565 | a8083063 | Iustin Pop | """Get export configuration information.
|
2566 | a8083063 | Iustin Pop |
|
2567 | 10c2650b | Iustin Pop | @type dest: str
|
2568 | 10c2650b | Iustin Pop | @param dest: directory containing the export
|
2569 | a8083063 | Iustin Pop |
|
2570 | 10c2650b | Iustin Pop | @rtype: L{objects.SerializableConfigParser}
|
2571 | 10c2650b | Iustin Pop | @return: a serializable config file containing the
|
2572 | 10c2650b | Iustin Pop | export info
|
2573 | a8083063 | Iustin Pop |
|
2574 | a8083063 | Iustin Pop | """
|
2575 | c4feafe8 | Iustin Pop | cff = utils.PathJoin(dest, constants.EXPORT_CONF_FILE) |
2576 | a8083063 | Iustin Pop | |
2577 | a8083063 | Iustin Pop | config = objects.SerializableConfigParser() |
2578 | a8083063 | Iustin Pop | config.read(cff) |
2579 | a8083063 | Iustin Pop | |
2580 | a8083063 | Iustin Pop | if (not config.has_section(constants.INISECT_EXP) or |
2581 | a8083063 | Iustin Pop | not config.has_section(constants.INISECT_INS)):
|
2582 | 3eccac06 | Iustin Pop | _Fail("Export info file doesn't have the required fields")
|
2583 | a8083063 | Iustin Pop | |
2584 | c26a6bd2 | Iustin Pop | return config.Dumps()
|
2585 | a8083063 | Iustin Pop | |
2586 | a8083063 | Iustin Pop | |
2587 | a8083063 | Iustin Pop | def ListExports(): |
2588 | a8083063 | Iustin Pop | """Return a list of exports currently available on this machine.
|
2589 | 098c0958 | Michael Hanselmann |
|
2590 | 10c2650b | Iustin Pop | @rtype: list
|
2591 | 10c2650b | Iustin Pop | @return: list of the exports
|
2592 | 10c2650b | Iustin Pop |
|
2593 | a8083063 | Iustin Pop | """
|
2594 | a8083063 | Iustin Pop | if os.path.isdir(constants.EXPORT_DIR):
|
2595 | b5b8309d | Guido Trotter | return sorted(utils.ListVisibleFiles(constants.EXPORT_DIR)) |
2596 | a8083063 | Iustin Pop | else:
|
2597 | afdc3985 | Iustin Pop | _Fail("No exports directory")
|
2598 | a8083063 | Iustin Pop | |
2599 | a8083063 | Iustin Pop | |
2600 | a8083063 | Iustin Pop | def RemoveExport(export): |
2601 | a8083063 | Iustin Pop | """Remove an existing export from the node.
|
2602 | a8083063 | Iustin Pop |
|
2603 | 10c2650b | Iustin Pop | @type export: str
|
2604 | 10c2650b | Iustin Pop | @param export: the name of the export to remove
|
2605 | c26a6bd2 | Iustin Pop | @rtype: None
|
2606 | a8083063 | Iustin Pop |
|
2607 | 098c0958 | Michael Hanselmann | """
|
2608 | c4feafe8 | Iustin Pop | target = utils.PathJoin(constants.EXPORT_DIR, export) |
2609 | a8083063 | Iustin Pop | |
2610 | 35fbcd11 | Iustin Pop | try:
|
2611 | 35fbcd11 | Iustin Pop | shutil.rmtree(target) |
2612 | 35fbcd11 | Iustin Pop | except EnvironmentError, err: |
2613 | 35fbcd11 | Iustin Pop | _Fail("Error while removing the export: %s", err, exc=True) |
2614 | a8083063 | Iustin Pop | |
2615 | a8083063 | Iustin Pop | |
2616 | 821d1bd1 | Iustin Pop | def BlockdevRename(devlist): |
2617 | f3e513ad | Iustin Pop | """Rename a list of block devices.
|
2618 | f3e513ad | Iustin Pop |
|
2619 | 10c2650b | Iustin Pop | @type devlist: list of tuples
|
2620 | 10c2650b | Iustin Pop | @param devlist: list of tuples of the form (disk,
|
2621 | 10c2650b | Iustin Pop | new_logical_id, new_physical_id); disk is an
|
2622 | 10c2650b | Iustin Pop | L{objects.Disk} object describing the current disk,
|
2623 | 10c2650b | Iustin Pop | and new logical_id/physical_id is the name we
|
2624 | 10c2650b | Iustin Pop | rename it to
|
2625 | 10c2650b | Iustin Pop | @rtype: boolean
|
2626 | 10c2650b | Iustin Pop | @return: True if all renames succeeded, False otherwise
|
2627 | f3e513ad | Iustin Pop |
|
2628 | f3e513ad | Iustin Pop | """
|
2629 | 6b5e3f70 | Iustin Pop | msgs = [] |
2630 | f3e513ad | Iustin Pop | result = True
|
2631 | f3e513ad | Iustin Pop | for disk, unique_id in devlist: |
2632 | f3e513ad | Iustin Pop | dev = _RecursiveFindBD(disk) |
2633 | f3e513ad | Iustin Pop | if dev is None: |
2634 | 6b5e3f70 | Iustin Pop | msgs.append("Can't find device %s in rename" % str(disk)) |
2635 | f3e513ad | Iustin Pop | result = False
|
2636 | f3e513ad | Iustin Pop | continue
|
2637 | f3e513ad | Iustin Pop | try:
|
2638 | 3f78eef2 | Iustin Pop | old_rpath = dev.dev_path |
2639 | f3e513ad | Iustin Pop | dev.Rename(unique_id) |
2640 | 3f78eef2 | Iustin Pop | new_rpath = dev.dev_path |
2641 | 3f78eef2 | Iustin Pop | if old_rpath != new_rpath:
|
2642 | 3f78eef2 | Iustin Pop | DevCacheManager.RemoveCache(old_rpath) |
2643 | 3f78eef2 | Iustin Pop | # FIXME: we should add the new cache information here, like:
|
2644 | 3f78eef2 | Iustin Pop | # DevCacheManager.UpdateCache(new_rpath, owner, ...)
|
2645 | 3f78eef2 | Iustin Pop | # but we don't have the owner here - maybe parse from existing
|
2646 | 3f78eef2 | Iustin Pop | # cache? for now, we only lose lvm data when we rename, which
|
2647 | 3f78eef2 | Iustin Pop | # is less critical than DRBD or MD
|
2648 | f3e513ad | Iustin Pop | except errors.BlockDeviceError, err:
|
2649 | 6b5e3f70 | Iustin Pop | msgs.append("Can't rename device '%s' to '%s': %s" %
|
2650 | 6b5e3f70 | Iustin Pop | (dev, unique_id, err)) |
2651 | 18682bca | Iustin Pop | logging.exception("Can't rename device '%s' to '%s'", dev, unique_id)
|
2652 | f3e513ad | Iustin Pop | result = False
|
2653 | afdc3985 | Iustin Pop | if not result: |
2654 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
2655 | f3e513ad | Iustin Pop | |
2656 | f3e513ad | Iustin Pop | |
2657 | 4b97f902 | Apollon Oikonomopoulos | def _TransformFileStorageDir(fs_dir): |
2658 | 778b75bb | Manuel Franceschini | """Checks whether given file_storage_dir is valid.
|
2659 | 778b75bb | Manuel Franceschini |
|
2660 | 4b97f902 | Apollon Oikonomopoulos | Checks wheter the given fs_dir is within the cluster-wide default
|
2661 | 4b97f902 | Apollon Oikonomopoulos | file_storage_dir or the shared_file_storage_dir, which are stored in
|
2662 | 4b97f902 | Apollon Oikonomopoulos | SimpleStore. Only paths under those directories are allowed.
|
2663 | 778b75bb | Manuel Franceschini |
|
2664 | 4b97f902 | Apollon Oikonomopoulos | @type fs_dir: str
|
2665 | 4b97f902 | Apollon Oikonomopoulos | @param fs_dir: the path to check
|
2666 | d61cbe76 | Iustin Pop |
|
2667 | b1206984 | Iustin Pop | @return: the normalized path if valid, None otherwise
|
2668 | 778b75bb | Manuel Franceschini |
|
2669 | 778b75bb | Manuel Franceschini | """
|
2670 | cb7c0198 | Iustin Pop | if not constants.ENABLE_FILE_STORAGE: |
2671 | cb7c0198 | Iustin Pop | _Fail("File storage disabled at configure time")
|
2672 | c657dcc9 | Michael Hanselmann | cfg = _GetConfig() |
2673 | 4b97f902 | Apollon Oikonomopoulos | fs_dir = os.path.normpath(fs_dir) |
2674 | 4b97f902 | Apollon Oikonomopoulos | base_fstore = cfg.GetFileStorageDir() |
2675 | 4b97f902 | Apollon Oikonomopoulos | base_shared = cfg.GetSharedFileStorageDir() |
2676 | cf00dba0 | René Nussbaumer | if not (utils.IsBelowDir(base_fstore, fs_dir) or |
2677 | cf00dba0 | René Nussbaumer | utils.IsBelowDir(base_shared, fs_dir)): |
2678 | b2b8bcce | Iustin Pop | _Fail("File storage directory '%s' is not under base file"
|
2679 | 4b97f902 | Apollon Oikonomopoulos | " storage directory '%s' or shared storage directory '%s'",
|
2680 | 4b97f902 | Apollon Oikonomopoulos | fs_dir, base_fstore, base_shared) |
2681 | 4b97f902 | Apollon Oikonomopoulos | return fs_dir
|
2682 | 778b75bb | Manuel Franceschini | |
2683 | 778b75bb | Manuel Franceschini | |
2684 | 778b75bb | Manuel Franceschini | def CreateFileStorageDir(file_storage_dir): |
2685 | 778b75bb | Manuel Franceschini | """Create file storage directory.
|
2686 | 778b75bb | Manuel Franceschini |
|
2687 | b1206984 | Iustin Pop | @type file_storage_dir: str
|
2688 | b1206984 | Iustin Pop | @param file_storage_dir: directory to create
|
2689 | 778b75bb | Manuel Franceschini |
|
2690 | b1206984 | Iustin Pop | @rtype: tuple
|
2691 | b1206984 | Iustin Pop | @return: tuple with first element a boolean indicating wheter dir
|
2692 | b1206984 | Iustin Pop | creation was successful or not
|
2693 | 778b75bb | Manuel Franceschini |
|
2694 | 778b75bb | Manuel Franceschini | """
|
2695 | 778b75bb | Manuel Franceschini | file_storage_dir = _TransformFileStorageDir(file_storage_dir) |
2696 | b2b8bcce | Iustin Pop | if os.path.exists(file_storage_dir):
|
2697 | b2b8bcce | Iustin Pop | if not os.path.isdir(file_storage_dir): |
2698 | b2b8bcce | Iustin Pop | _Fail("Specified storage dir '%s' is not a directory",
|
2699 | b2b8bcce | Iustin Pop | file_storage_dir) |
2700 | 778b75bb | Manuel Franceschini | else:
|
2701 | b2b8bcce | Iustin Pop | try:
|
2702 | b2b8bcce | Iustin Pop | os.makedirs(file_storage_dir, 0750)
|
2703 | b2b8bcce | Iustin Pop | except OSError, err: |
2704 | b2b8bcce | Iustin Pop | _Fail("Cannot create file storage directory '%s': %s",
|
2705 | b2b8bcce | Iustin Pop | file_storage_dir, err, exc=True)
|
2706 | 778b75bb | Manuel Franceschini | |
2707 | 778b75bb | Manuel Franceschini | |
2708 | 778b75bb | Manuel Franceschini | def RemoveFileStorageDir(file_storage_dir): |
2709 | 778b75bb | Manuel Franceschini | """Remove file storage directory.
|
2710 | 778b75bb | Manuel Franceschini |
|
2711 | 778b75bb | Manuel Franceschini | Remove it only if it's empty. If not log an error and return.
|
2712 | 778b75bb | Manuel Franceschini |
|
2713 | 10c2650b | Iustin Pop | @type file_storage_dir: str
|
2714 | 10c2650b | Iustin Pop | @param file_storage_dir: the directory we should cleanup
|
2715 | 10c2650b | Iustin Pop | @rtype: tuple (success,)
|
2716 | 10c2650b | Iustin Pop | @return: tuple of one element, C{success}, denoting
|
2717 | 5bbd3f7f | Michael Hanselmann | whether the operation was successful
|
2718 | 778b75bb | Manuel Franceschini |
|
2719 | 778b75bb | Manuel Franceschini | """
|
2720 | 778b75bb | Manuel Franceschini | file_storage_dir = _TransformFileStorageDir(file_storage_dir) |
2721 | b2b8bcce | Iustin Pop | if os.path.exists(file_storage_dir):
|
2722 | b2b8bcce | Iustin Pop | if not os.path.isdir(file_storage_dir): |
2723 | b2b8bcce | Iustin Pop | _Fail("Specified Storage directory '%s' is not a directory",
|
2724 | b2b8bcce | Iustin Pop | file_storage_dir) |
2725 | afdc3985 | Iustin Pop | # deletes dir only if empty, otherwise we want to fail the rpc call
|
2726 | b2b8bcce | Iustin Pop | try:
|
2727 | b2b8bcce | Iustin Pop | os.rmdir(file_storage_dir) |
2728 | b2b8bcce | Iustin Pop | except OSError, err: |
2729 | b2b8bcce | Iustin Pop | _Fail("Cannot remove file storage directory '%s': %s",
|
2730 | b2b8bcce | Iustin Pop | file_storage_dir, err) |
2731 | b2b8bcce | Iustin Pop | |
2732 | 778b75bb | Manuel Franceschini | |
2733 | 778b75bb | Manuel Franceschini | def RenameFileStorageDir(old_file_storage_dir, new_file_storage_dir): |
2734 | 778b75bb | Manuel Franceschini | """Rename the file storage directory.
|
2735 | 778b75bb | Manuel Franceschini |
|
2736 | 10c2650b | Iustin Pop | @type old_file_storage_dir: str
|
2737 | 10c2650b | Iustin Pop | @param old_file_storage_dir: the current path
|
2738 | 10c2650b | Iustin Pop | @type new_file_storage_dir: str
|
2739 | 10c2650b | Iustin Pop | @param new_file_storage_dir: the name we should rename to
|
2740 | 10c2650b | Iustin Pop | @rtype: tuple (success,)
|
2741 | 10c2650b | Iustin Pop | @return: tuple of one element, C{success}, denoting
|
2742 | 10c2650b | Iustin Pop | whether the operation was successful
|
2743 | 778b75bb | Manuel Franceschini |
|
2744 | 778b75bb | Manuel Franceschini | """
|
2745 | 778b75bb | Manuel Franceschini | old_file_storage_dir = _TransformFileStorageDir(old_file_storage_dir) |
2746 | 778b75bb | Manuel Franceschini | new_file_storage_dir = _TransformFileStorageDir(new_file_storage_dir) |
2747 | b2b8bcce | Iustin Pop | if not os.path.exists(new_file_storage_dir): |
2748 | b2b8bcce | Iustin Pop | if os.path.isdir(old_file_storage_dir):
|
2749 | b2b8bcce | Iustin Pop | try:
|
2750 | b2b8bcce | Iustin Pop | os.rename(old_file_storage_dir, new_file_storage_dir) |
2751 | b2b8bcce | Iustin Pop | except OSError, err: |
2752 | b2b8bcce | Iustin Pop | _Fail("Cannot rename '%s' to '%s': %s",
|
2753 | b2b8bcce | Iustin Pop | old_file_storage_dir, new_file_storage_dir, err) |
2754 | 778b75bb | Manuel Franceschini | else:
|
2755 | b2b8bcce | Iustin Pop | _Fail("Specified storage dir '%s' is not a directory",
|
2756 | b2b8bcce | Iustin Pop | old_file_storage_dir) |
2757 | b2b8bcce | Iustin Pop | else:
|
2758 | b2b8bcce | Iustin Pop | if os.path.exists(old_file_storage_dir):
|
2759 | b2b8bcce | Iustin Pop | _Fail("Cannot rename '%s' to '%s': both locations exist",
|
2760 | b2b8bcce | Iustin Pop | old_file_storage_dir, new_file_storage_dir) |
2761 | 778b75bb | Manuel Franceschini | |
2762 | 778b75bb | Manuel Franceschini | |
2763 | c8457ce7 | Iustin Pop | def _EnsureJobQueueFile(file_name): |
2764 | dc31eae3 | Michael Hanselmann | """Checks whether the given filename is in the queue directory.
|
2765 | ca52cdeb | Michael Hanselmann |
|
2766 | 10c2650b | Iustin Pop | @type file_name: str
|
2767 | 10c2650b | Iustin Pop | @param file_name: the file name we should check
|
2768 | c8457ce7 | Iustin Pop | @rtype: None
|
2769 | c8457ce7 | Iustin Pop | @raises RPCFail: if the file is not valid
|
2770 | 10c2650b | Iustin Pop |
|
2771 | ca52cdeb | Michael Hanselmann | """
|
2772 | ca52cdeb | Michael Hanselmann | queue_dir = os.path.normpath(constants.QUEUE_DIR) |
2773 | dc31eae3 | Michael Hanselmann | result = (os.path.commonprefix([queue_dir, file_name]) == queue_dir) |
2774 | dc31eae3 | Michael Hanselmann | |
2775 | dc31eae3 | Michael Hanselmann | if not result: |
2776 | c8457ce7 | Iustin Pop | _Fail("Passed job queue file '%s' does not belong to"
|
2777 | c8457ce7 | Iustin Pop | " the queue directory '%s'", file_name, queue_dir)
|
2778 | dc31eae3 | Michael Hanselmann | |
2779 | dc31eae3 | Michael Hanselmann | |
2780 | dc31eae3 | Michael Hanselmann | def JobQueueUpdate(file_name, content): |
2781 | dc31eae3 | Michael Hanselmann | """Updates a file in the queue directory.
|
2782 | dc31eae3 | Michael Hanselmann |
|
2783 | 3865ca48 | Michael Hanselmann | This is just a wrapper over L{utils.io.WriteFile}, with proper
|
2784 | 10c2650b | Iustin Pop | checking.
|
2785 | 10c2650b | Iustin Pop |
|
2786 | 10c2650b | Iustin Pop | @type file_name: str
|
2787 | 10c2650b | Iustin Pop | @param file_name: the job file name
|
2788 | 10c2650b | Iustin Pop | @type content: str
|
2789 | 10c2650b | Iustin Pop | @param content: the new job contents
|
2790 | 10c2650b | Iustin Pop | @rtype: boolean
|
2791 | 10c2650b | Iustin Pop | @return: the success of the operation
|
2792 | 10c2650b | Iustin Pop |
|
2793 | dc31eae3 | Michael Hanselmann | """
|
2794 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(file_name) |
2795 | 82b22e19 | René Nussbaumer | getents = runtime.GetEnts() |
2796 | ca52cdeb | Michael Hanselmann | |
2797 | ca52cdeb | Michael Hanselmann | # Write and replace the file atomically
|
2798 | 82b22e19 | René Nussbaumer | utils.WriteFile(file_name, data=_Decompress(content), uid=getents.masterd_uid, |
2799 | 82b22e19 | René Nussbaumer | gid=getents.masterd_gid) |
2800 | ca52cdeb | Michael Hanselmann | |
2801 | ca52cdeb | Michael Hanselmann | |
2802 | af5ebcb1 | Michael Hanselmann | def JobQueueRename(old, new): |
2803 | af5ebcb1 | Michael Hanselmann | """Renames a job queue file.
|
2804 | af5ebcb1 | Michael Hanselmann |
|
2805 | c41eea6e | Iustin Pop | This is just a wrapper over os.rename with proper checking.
|
2806 | 10c2650b | Iustin Pop |
|
2807 | 10c2650b | Iustin Pop | @type old: str
|
2808 | 10c2650b | Iustin Pop | @param old: the old (actual) file name
|
2809 | 10c2650b | Iustin Pop | @type new: str
|
2810 | 10c2650b | Iustin Pop | @param new: the desired file name
|
2811 | c8457ce7 | Iustin Pop | @rtype: tuple
|
2812 | c8457ce7 | Iustin Pop | @return: the success of the operation and payload
|
2813 | 10c2650b | Iustin Pop |
|
2814 | af5ebcb1 | Michael Hanselmann | """
|
2815 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(old) |
2816 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(new) |
2817 | af5ebcb1 | Michael Hanselmann | |
2818 | 8e5a705d | René Nussbaumer | getents = runtime.GetEnts() |
2819 | 8e5a705d | René Nussbaumer | |
2820 | 8e5a705d | René Nussbaumer | utils.RenameFile(old, new, mkdir=True, mkdir_mode=0700, |
2821 | 8e5a705d | René Nussbaumer | dir_uid=getents.masterd_uid, dir_gid=getents.masterd_gid) |
2822 | af5ebcb1 | Michael Hanselmann | |
2823 | af5ebcb1 | Michael Hanselmann | |
2824 | 821d1bd1 | Iustin Pop | def BlockdevClose(instance_name, disks): |
2825 | d61cbe76 | Iustin Pop | """Closes the given block devices.
|
2826 | d61cbe76 | Iustin Pop |
|
2827 | 10c2650b | Iustin Pop | This means they will be switched to secondary mode (in case of
|
2828 | 10c2650b | Iustin Pop | DRBD).
|
2829 | 10c2650b | Iustin Pop |
|
2830 | b2e7666a | Iustin Pop | @param instance_name: if the argument is not empty, the symlinks
|
2831 | b2e7666a | Iustin Pop | of this instance will be removed
|
2832 | 10c2650b | Iustin Pop | @type disks: list of L{objects.Disk}
|
2833 | 10c2650b | Iustin Pop | @param disks: the list of disks to be closed
|
2834 | 10c2650b | Iustin Pop | @rtype: tuple (success, message)
|
2835 | 10c2650b | Iustin Pop | @return: a tuple of success and message, where success
|
2836 | 10c2650b | Iustin Pop | indicates the succes of the operation, and message
|
2837 | 10c2650b | Iustin Pop | which will contain the error details in case we
|
2838 | 10c2650b | Iustin Pop | failed
|
2839 | d61cbe76 | Iustin Pop |
|
2840 | d61cbe76 | Iustin Pop | """
|
2841 | d61cbe76 | Iustin Pop | bdevs = [] |
2842 | d61cbe76 | Iustin Pop | for cf in disks: |
2843 | d61cbe76 | Iustin Pop | rd = _RecursiveFindBD(cf) |
2844 | d61cbe76 | Iustin Pop | if rd is None: |
2845 | 2cc6781a | Iustin Pop | _Fail("Can't find device %s", cf)
|
2846 | d61cbe76 | Iustin Pop | bdevs.append(rd) |
2847 | d61cbe76 | Iustin Pop | |
2848 | d61cbe76 | Iustin Pop | msg = [] |
2849 | d61cbe76 | Iustin Pop | for rd in bdevs: |
2850 | d61cbe76 | Iustin Pop | try:
|
2851 | d61cbe76 | Iustin Pop | rd.Close() |
2852 | d61cbe76 | Iustin Pop | except errors.BlockDeviceError, err:
|
2853 | d61cbe76 | Iustin Pop | msg.append(str(err))
|
2854 | d61cbe76 | Iustin Pop | if msg:
|
2855 | afdc3985 | Iustin Pop | _Fail("Can't make devices secondary: %s", ",".join(msg)) |
2856 | d61cbe76 | Iustin Pop | else:
|
2857 | b2e7666a | Iustin Pop | if instance_name:
|
2858 | 5282084b | Iustin Pop | _RemoveBlockDevLinks(instance_name, disks) |
2859 | d61cbe76 | Iustin Pop | |
2860 | d61cbe76 | Iustin Pop | |
2861 | 6217e295 | Iustin Pop | def ValidateHVParams(hvname, hvparams): |
2862 | 6217e295 | Iustin Pop | """Validates the given hypervisor parameters.
|
2863 | 6217e295 | Iustin Pop |
|
2864 | 6217e295 | Iustin Pop | @type hvname: string
|
2865 | 6217e295 | Iustin Pop | @param hvname: the hypervisor name
|
2866 | 6217e295 | Iustin Pop | @type hvparams: dict
|
2867 | 6217e295 | Iustin Pop | @param hvparams: the hypervisor parameters to be validated
|
2868 | c26a6bd2 | Iustin Pop | @rtype: None
|
2869 | 6217e295 | Iustin Pop |
|
2870 | 6217e295 | Iustin Pop | """
|
2871 | 6217e295 | Iustin Pop | try:
|
2872 | 6217e295 | Iustin Pop | hv_type = hypervisor.GetHypervisor(hvname) |
2873 | 6217e295 | Iustin Pop | hv_type.ValidateParameters(hvparams) |
2874 | 6217e295 | Iustin Pop | except errors.HypervisorError, err:
|
2875 | afdc3985 | Iustin Pop | _Fail(str(err), log=False) |
2876 | 6217e295 | Iustin Pop | |
2877 | 6217e295 | Iustin Pop | |
2878 | acd9ff9e | Iustin Pop | def _CheckOSPList(os_obj, parameters): |
2879 | acd9ff9e | Iustin Pop | """Check whether a list of parameters is supported by the OS.
|
2880 | acd9ff9e | Iustin Pop |
|
2881 | acd9ff9e | Iustin Pop | @type os_obj: L{objects.OS}
|
2882 | acd9ff9e | Iustin Pop | @param os_obj: OS object to check
|
2883 | acd9ff9e | Iustin Pop | @type parameters: list
|
2884 | acd9ff9e | Iustin Pop | @param parameters: the list of parameters to check
|
2885 | acd9ff9e | Iustin Pop |
|
2886 | acd9ff9e | Iustin Pop | """
|
2887 | acd9ff9e | Iustin Pop | supported = [v[0] for v in os_obj.supported_parameters] |
2888 | acd9ff9e | Iustin Pop | delta = frozenset(parameters).difference(supported)
|
2889 | acd9ff9e | Iustin Pop | if delta:
|
2890 | acd9ff9e | Iustin Pop | _Fail("The following parameters are not supported"
|
2891 | acd9ff9e | Iustin Pop | " by the OS %s: %s" % (os_obj.name, utils.CommaJoin(delta)))
|
2892 | acd9ff9e | Iustin Pop | |
2893 | acd9ff9e | Iustin Pop | |
2894 | acd9ff9e | Iustin Pop | def ValidateOS(required, osname, checks, osparams): |
2895 | acd9ff9e | Iustin Pop | """Validate the given OS' parameters.
|
2896 | acd9ff9e | Iustin Pop |
|
2897 | acd9ff9e | Iustin Pop | @type required: boolean
|
2898 | acd9ff9e | Iustin Pop | @param required: whether absence of the OS should translate into
|
2899 | acd9ff9e | Iustin Pop | failure or not
|
2900 | acd9ff9e | Iustin Pop | @type osname: string
|
2901 | acd9ff9e | Iustin Pop | @param osname: the OS to be validated
|
2902 | acd9ff9e | Iustin Pop | @type checks: list
|
2903 | acd9ff9e | Iustin Pop | @param checks: list of the checks to run (currently only 'parameters')
|
2904 | acd9ff9e | Iustin Pop | @type osparams: dict
|
2905 | acd9ff9e | Iustin Pop | @param osparams: dictionary with OS parameters
|
2906 | acd9ff9e | Iustin Pop | @rtype: boolean
|
2907 | acd9ff9e | Iustin Pop | @return: True if the validation passed, or False if the OS was not
|
2908 | acd9ff9e | Iustin Pop | found and L{required} was false
|
2909 | acd9ff9e | Iustin Pop |
|
2910 | acd9ff9e | Iustin Pop | """
|
2911 | acd9ff9e | Iustin Pop | if not constants.OS_VALIDATE_CALLS.issuperset(checks): |
2912 | acd9ff9e | Iustin Pop | _Fail("Unknown checks required for OS %s: %s", osname,
|
2913 | acd9ff9e | Iustin Pop | set(checks).difference(constants.OS_VALIDATE_CALLS))
|
2914 | acd9ff9e | Iustin Pop | |
2915 | 870dc44c | Iustin Pop | name_only = objects.OS.GetName(osname) |
2916 | acd9ff9e | Iustin Pop | status, tbv = _TryOSFromDisk(name_only, None)
|
2917 | acd9ff9e | Iustin Pop | |
2918 | acd9ff9e | Iustin Pop | if not status: |
2919 | acd9ff9e | Iustin Pop | if required:
|
2920 | acd9ff9e | Iustin Pop | _Fail(tbv) |
2921 | acd9ff9e | Iustin Pop | else:
|
2922 | acd9ff9e | Iustin Pop | return False |
2923 | acd9ff9e | Iustin Pop | |
2924 | 72db3fd7 | Iustin Pop | if max(tbv.api_versions) < constants.OS_API_V20: |
2925 | 72db3fd7 | Iustin Pop | return True |
2926 | 72db3fd7 | Iustin Pop | |
2927 | acd9ff9e | Iustin Pop | if constants.OS_VALIDATE_PARAMETERS in checks: |
2928 | acd9ff9e | Iustin Pop | _CheckOSPList(tbv, osparams.keys()) |
2929 | acd9ff9e | Iustin Pop | |
2930 | a025e535 | Vitaly Kuznetsov | validate_env = OSCoreEnv(osname, tbv, osparams) |
2931 | acd9ff9e | Iustin Pop | result = utils.RunCmd([tbv.verify_script] + checks, env=validate_env, |
2932 | 896a03f6 | Iustin Pop | cwd=tbv.path, reset_env=True)
|
2933 | acd9ff9e | Iustin Pop | if result.failed:
|
2934 | acd9ff9e | Iustin Pop | logging.error("os validate command '%s' returned error: %s output: %s",
|
2935 | acd9ff9e | Iustin Pop | result.cmd, result.fail_reason, result.output) |
2936 | acd9ff9e | Iustin Pop | _Fail("OS validation script failed (%s), output: %s",
|
2937 | acd9ff9e | Iustin Pop | result.fail_reason, result.output, log=False)
|
2938 | acd9ff9e | Iustin Pop | |
2939 | acd9ff9e | Iustin Pop | return True |
2940 | acd9ff9e | Iustin Pop | |
2941 | acd9ff9e | Iustin Pop | |
2942 | 56aa9fd5 | Iustin Pop | def DemoteFromMC(): |
2943 | 56aa9fd5 | Iustin Pop | """Demotes the current node from master candidate role.
|
2944 | 56aa9fd5 | Iustin Pop |
|
2945 | 56aa9fd5 | Iustin Pop | """
|
2946 | 56aa9fd5 | Iustin Pop | # try to ensure we're not the master by mistake
|
2947 | 56aa9fd5 | Iustin Pop | master, myself = ssconf.GetMasterAndMyself() |
2948 | 56aa9fd5 | Iustin Pop | if master == myself:
|
2949 | afdc3985 | Iustin Pop | _Fail("ssconf status shows I'm the master node, will not demote")
|
2950 | f154a7a3 | Michael Hanselmann | |
2951 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "check", constants.MASTERD])
|
2952 | f154a7a3 | Michael Hanselmann | if not result.failed: |
2953 | afdc3985 | Iustin Pop | _Fail("The master daemon is running, will not demote")
|
2954 | f154a7a3 | Michael Hanselmann | |
2955 | 56aa9fd5 | Iustin Pop | try:
|
2956 | 9a5cb537 | Iustin Pop | if os.path.isfile(constants.CLUSTER_CONF_FILE):
|
2957 | 9a5cb537 | Iustin Pop | utils.CreateBackup(constants.CLUSTER_CONF_FILE) |
2958 | 56aa9fd5 | Iustin Pop | except EnvironmentError, err: |
2959 | 56aa9fd5 | Iustin Pop | if err.errno != errno.ENOENT:
|
2960 | afdc3985 | Iustin Pop | _Fail("Error while backing up cluster file: %s", err, exc=True) |
2961 | f154a7a3 | Michael Hanselmann | |
2962 | 56aa9fd5 | Iustin Pop | utils.RemoveFile(constants.CLUSTER_CONF_FILE) |
2963 | 56aa9fd5 | Iustin Pop | |
2964 | 56aa9fd5 | Iustin Pop | |
2965 | f942a838 | Michael Hanselmann | def _GetX509Filenames(cryptodir, name): |
2966 | f942a838 | Michael Hanselmann | """Returns the full paths for the private key and certificate.
|
2967 | f942a838 | Michael Hanselmann |
|
2968 | f942a838 | Michael Hanselmann | """
|
2969 | f942a838 | Michael Hanselmann | return (utils.PathJoin(cryptodir, name),
|
2970 | f942a838 | Michael Hanselmann | utils.PathJoin(cryptodir, name, _X509_KEY_FILE), |
2971 | f942a838 | Michael Hanselmann | utils.PathJoin(cryptodir, name, _X509_CERT_FILE)) |
2972 | f942a838 | Michael Hanselmann | |
2973 | f942a838 | Michael Hanselmann | |
2974 | f942a838 | Michael Hanselmann | def CreateX509Certificate(validity, cryptodir=constants.CRYPTO_KEYS_DIR): |
2975 | f942a838 | Michael Hanselmann | """Creates a new X509 certificate for SSL/TLS.
|
2976 | f942a838 | Michael Hanselmann |
|
2977 | f942a838 | Michael Hanselmann | @type validity: int
|
2978 | f942a838 | Michael Hanselmann | @param validity: Validity in seconds
|
2979 | f942a838 | Michael Hanselmann | @rtype: tuple; (string, string)
|
2980 | f942a838 | Michael Hanselmann | @return: Certificate name and public part
|
2981 | f942a838 | Michael Hanselmann |
|
2982 | f942a838 | Michael Hanselmann | """
|
2983 | f942a838 | Michael Hanselmann | (key_pem, cert_pem) = \ |
2984 | b705c7a6 | Manuel Franceschini | utils.GenerateSelfSignedX509Cert(netutils.Hostname.GetSysName(), |
2985 | f942a838 | Michael Hanselmann | min(validity, _MAX_SSL_CERT_VALIDITY))
|
2986 | f942a838 | Michael Hanselmann | |
2987 | f942a838 | Michael Hanselmann | cert_dir = tempfile.mkdtemp(dir=cryptodir, |
2988 | f942a838 | Michael Hanselmann | prefix="x509-%s-" % utils.TimestampForFilename())
|
2989 | f942a838 | Michael Hanselmann | try:
|
2990 | f942a838 | Michael Hanselmann | name = os.path.basename(cert_dir) |
2991 | f942a838 | Michael Hanselmann | assert len(name) > 5 |
2992 | f942a838 | Michael Hanselmann | |
2993 | f942a838 | Michael Hanselmann | (_, key_file, cert_file) = _GetX509Filenames(cryptodir, name) |
2994 | f942a838 | Michael Hanselmann | |
2995 | f942a838 | Michael Hanselmann | utils.WriteFile(key_file, mode=0400, data=key_pem)
|
2996 | f942a838 | Michael Hanselmann | utils.WriteFile(cert_file, mode=0400, data=cert_pem)
|
2997 | f942a838 | Michael Hanselmann | |
2998 | f942a838 | Michael Hanselmann | # Never return private key as it shouldn't leave the node
|
2999 | f942a838 | Michael Hanselmann | return (name, cert_pem)
|
3000 | f942a838 | Michael Hanselmann | except Exception: |
3001 | f942a838 | Michael Hanselmann | shutil.rmtree(cert_dir, ignore_errors=True)
|
3002 | f942a838 | Michael Hanselmann | raise
|
3003 | f942a838 | Michael Hanselmann | |
3004 | f942a838 | Michael Hanselmann | |
3005 | f942a838 | Michael Hanselmann | def RemoveX509Certificate(name, cryptodir=constants.CRYPTO_KEYS_DIR): |
3006 | f942a838 | Michael Hanselmann | """Removes a X509 certificate.
|
3007 | f942a838 | Michael Hanselmann |
|
3008 | f942a838 | Michael Hanselmann | @type name: string
|
3009 | f942a838 | Michael Hanselmann | @param name: Certificate name
|
3010 | f942a838 | Michael Hanselmann |
|
3011 | f942a838 | Michael Hanselmann | """
|
3012 | f942a838 | Michael Hanselmann | (cert_dir, key_file, cert_file) = _GetX509Filenames(cryptodir, name) |
3013 | f942a838 | Michael Hanselmann | |
3014 | f942a838 | Michael Hanselmann | utils.RemoveFile(key_file) |
3015 | f942a838 | Michael Hanselmann | utils.RemoveFile(cert_file) |
3016 | f942a838 | Michael Hanselmann | |
3017 | f942a838 | Michael Hanselmann | try:
|
3018 | f942a838 | Michael Hanselmann | os.rmdir(cert_dir) |
3019 | f942a838 | Michael Hanselmann | except EnvironmentError, err: |
3020 | f942a838 | Michael Hanselmann | _Fail("Cannot remove certificate directory '%s': %s",
|
3021 | f942a838 | Michael Hanselmann | cert_dir, err) |
3022 | f942a838 | Michael Hanselmann | |
3023 | f942a838 | Michael Hanselmann | |
3024 | 1651d116 | Michael Hanselmann | def _GetImportExportIoCommand(instance, mode, ieio, ieargs): |
3025 | 1651d116 | Michael Hanselmann | """Returns the command for the requested input/output.
|
3026 | 1651d116 | Michael Hanselmann |
|
3027 | 1651d116 | Michael Hanselmann | @type instance: L{objects.Instance}
|
3028 | 1651d116 | Michael Hanselmann | @param instance: The instance object
|
3029 | 1651d116 | Michael Hanselmann | @param mode: Import/export mode
|
3030 | 1651d116 | Michael Hanselmann | @param ieio: Input/output type
|
3031 | 1651d116 | Michael Hanselmann | @param ieargs: Input/output arguments
|
3032 | 1651d116 | Michael Hanselmann |
|
3033 | 1651d116 | Michael Hanselmann | """
|
3034 | 1651d116 | Michael Hanselmann | assert mode in (constants.IEM_IMPORT, constants.IEM_EXPORT) |
3035 | 1651d116 | Michael Hanselmann | |
3036 | 1651d116 | Michael Hanselmann | env = None
|
3037 | 1651d116 | Michael Hanselmann | prefix = None
|
3038 | 1651d116 | Michael Hanselmann | suffix = None
|
3039 | 2ad5550d | Michael Hanselmann | exp_size = None
|
3040 | 1651d116 | Michael Hanselmann | |
3041 | 1651d116 | Michael Hanselmann | if ieio == constants.IEIO_FILE:
|
3042 | 1651d116 | Michael Hanselmann | (filename, ) = ieargs |
3043 | 1651d116 | Michael Hanselmann | |
3044 | 1651d116 | Michael Hanselmann | if not utils.IsNormAbsPath(filename): |
3045 | 1651d116 | Michael Hanselmann | _Fail("Path '%s' is not normalized or absolute", filename)
|
3046 | 1651d116 | Michael Hanselmann | |
3047 | 748c9884 | René Nussbaumer | real_filename = os.path.realpath(filename) |
3048 | 748c9884 | René Nussbaumer | directory = os.path.dirname(real_filename) |
3049 | 1651d116 | Michael Hanselmann | |
3050 | 945859e0 | René Nussbaumer | if not utils.IsBelowDir(constants.EXPORT_DIR, real_filename): |
3051 | 748c9884 | René Nussbaumer | _Fail("File '%s' is not under exports directory '%s': %s",
|
3052 | 748c9884 | René Nussbaumer | filename, constants.EXPORT_DIR, real_filename) |
3053 | 1651d116 | Michael Hanselmann | |
3054 | 1651d116 | Michael Hanselmann | # Create directory
|
3055 | 1651d116 | Michael Hanselmann | utils.Makedirs(directory, mode=0750)
|
3056 | 1651d116 | Michael Hanselmann | |
3057 | 1651d116 | Michael Hanselmann | quoted_filename = utils.ShellQuote(filename) |
3058 | 1651d116 | Michael Hanselmann | |
3059 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
3060 | 1651d116 | Michael Hanselmann | suffix = "> %s" % quoted_filename
|
3061 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
3062 | 1651d116 | Michael Hanselmann | suffix = "< %s" % quoted_filename
|
3063 | 1651d116 | Michael Hanselmann | |
3064 | 2ad5550d | Michael Hanselmann | # Retrieve file size
|
3065 | 2ad5550d | Michael Hanselmann | try:
|
3066 | 2ad5550d | Michael Hanselmann | st = os.stat(filename) |
3067 | 2ad5550d | Michael Hanselmann | except EnvironmentError, err: |
3068 | 2ad5550d | Michael Hanselmann | logging.error("Can't stat(2) %s: %s", filename, err)
|
3069 | 2ad5550d | Michael Hanselmann | else:
|
3070 | 2ad5550d | Michael Hanselmann | exp_size = utils.BytesToMebibyte(st.st_size) |
3071 | 2ad5550d | Michael Hanselmann | |
3072 | 1651d116 | Michael Hanselmann | elif ieio == constants.IEIO_RAW_DISK:
|
3073 | 1651d116 | Michael Hanselmann | (disk, ) = ieargs |
3074 | 1651d116 | Michael Hanselmann | |
3075 | 1651d116 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
3076 | 1651d116 | Michael Hanselmann | |
3077 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
3078 | 1651d116 | Michael Hanselmann | # we set here a smaller block size as, due to transport buffering, more
|
3079 | 1651d116 | Michael Hanselmann | # than 64-128k will mostly ignored; we use nocreat to fail if the device
|
3080 | 1651d116 | Michael Hanselmann | # is not already there or we pass a wrong path; we use notrunc to no
|
3081 | 1651d116 | Michael Hanselmann | # attempt truncate on an LV device; we use oflag=dsync to not buffer too
|
3082 | 1651d116 | Michael Hanselmann | # much memory; this means that at best, we flush every 64k, which will
|
3083 | 1651d116 | Michael Hanselmann | # not be very fast
|
3084 | 1651d116 | Michael Hanselmann | suffix = utils.BuildShellCmd(("| dd of=%s conv=nocreat,notrunc"
|
3085 | 1651d116 | Michael Hanselmann | " bs=%s oflag=dsync"),
|
3086 | 1651d116 | Michael Hanselmann | real_disk.dev_path, |
3087 | 1651d116 | Michael Hanselmann | str(64 * 1024)) |
3088 | 1651d116 | Michael Hanselmann | |
3089 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
3090 | 1651d116 | Michael Hanselmann | # the block size on the read dd is 1MiB to match our units
|
3091 | 1651d116 | Michael Hanselmann | prefix = utils.BuildShellCmd("dd if=%s bs=%s count=%s |",
|
3092 | 1651d116 | Michael Hanselmann | real_disk.dev_path, |
3093 | 1651d116 | Michael Hanselmann | str(1024 * 1024), # 1 MB |
3094 | 1651d116 | Michael Hanselmann | str(disk.size))
|
3095 | 2ad5550d | Michael Hanselmann | exp_size = disk.size |
3096 | 1651d116 | Michael Hanselmann | |
3097 | 1651d116 | Michael Hanselmann | elif ieio == constants.IEIO_SCRIPT:
|
3098 | 1651d116 | Michael Hanselmann | (disk, disk_index, ) = ieargs |
3099 | 1651d116 | Michael Hanselmann | |
3100 | 1651d116 | Michael Hanselmann | assert isinstance(disk_index, (int, long)) |
3101 | 1651d116 | Michael Hanselmann | |
3102 | 1651d116 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
3103 | 1651d116 | Michael Hanselmann | |
3104 | 1651d116 | Michael Hanselmann | inst_os = OSFromDisk(instance.os) |
3105 | 1651d116 | Michael Hanselmann | env = OSEnvironment(instance, inst_os) |
3106 | 1651d116 | Michael Hanselmann | |
3107 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
3108 | 1651d116 | Michael Hanselmann | env["IMPORT_DEVICE"] = env["DISK_%d_PATH" % disk_index] |
3109 | 1651d116 | Michael Hanselmann | env["IMPORT_INDEX"] = str(disk_index) |
3110 | 1651d116 | Michael Hanselmann | script = inst_os.import_script |
3111 | 1651d116 | Michael Hanselmann | |
3112 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
3113 | 1651d116 | Michael Hanselmann | env["EXPORT_DEVICE"] = real_disk.dev_path
|
3114 | 1651d116 | Michael Hanselmann | env["EXPORT_INDEX"] = str(disk_index) |
3115 | 1651d116 | Michael Hanselmann | script = inst_os.export_script |
3116 | 1651d116 | Michael Hanselmann | |
3117 | 1651d116 | Michael Hanselmann | # TODO: Pass special environment only to script
|
3118 | 1651d116 | Michael Hanselmann | script_cmd = utils.BuildShellCmd("( cd %s && %s; )", inst_os.path, script)
|
3119 | 1651d116 | Michael Hanselmann | |
3120 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
3121 | 1651d116 | Michael Hanselmann | suffix = "| %s" % script_cmd
|
3122 | 1651d116 | Michael Hanselmann | |
3123 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
3124 | 1651d116 | Michael Hanselmann | prefix = "%s |" % script_cmd
|
3125 | 1651d116 | Michael Hanselmann | |
3126 | 2ad5550d | Michael Hanselmann | # Let script predict size
|
3127 | 2ad5550d | Michael Hanselmann | exp_size = constants.IE_CUSTOM_SIZE |
3128 | 2ad5550d | Michael Hanselmann | |
3129 | 1651d116 | Michael Hanselmann | else:
|
3130 | 1651d116 | Michael Hanselmann | _Fail("Invalid %s I/O mode %r", mode, ieio)
|
3131 | 1651d116 | Michael Hanselmann | |
3132 | 2ad5550d | Michael Hanselmann | return (env, prefix, suffix, exp_size)
|
3133 | 1651d116 | Michael Hanselmann | |
3134 | 1651d116 | Michael Hanselmann | |
3135 | 1651d116 | Michael Hanselmann | def _CreateImportExportStatusDir(prefix): |
3136 | 1651d116 | Michael Hanselmann | """Creates status directory for import/export.
|
3137 | 1651d116 | Michael Hanselmann |
|
3138 | 1651d116 | Michael Hanselmann | """
|
3139 | 1651d116 | Michael Hanselmann | return tempfile.mkdtemp(dir=constants.IMPORT_EXPORT_DIR,
|
3140 | 1651d116 | Michael Hanselmann | prefix=("%s-%s-" %
|
3141 | 1651d116 | Michael Hanselmann | (prefix, utils.TimestampForFilename()))) |
3142 | 1651d116 | Michael Hanselmann | |
3143 | 1651d116 | Michael Hanselmann | |
3144 | 6613661a | Iustin Pop | def StartImportExportDaemon(mode, opts, host, port, instance, component, |
3145 | 6613661a | Iustin Pop | ieio, ieioargs): |
3146 | 1651d116 | Michael Hanselmann | """Starts an import or export daemon.
|
3147 | 1651d116 | Michael Hanselmann |
|
3148 | 1651d116 | Michael Hanselmann | @param mode: Import/output mode
|
3149 | eb630f50 | Michael Hanselmann | @type opts: L{objects.ImportExportOptions}
|
3150 | eb630f50 | Michael Hanselmann | @param opts: Daemon options
|
3151 | 1651d116 | Michael Hanselmann | @type host: string
|
3152 | 1651d116 | Michael Hanselmann | @param host: Remote host for export (None for import)
|
3153 | 1651d116 | Michael Hanselmann | @type port: int
|
3154 | 1651d116 | Michael Hanselmann | @param port: Remote port for export (None for import)
|
3155 | 1651d116 | Michael Hanselmann | @type instance: L{objects.Instance}
|
3156 | 1651d116 | Michael Hanselmann | @param instance: Instance object
|
3157 | 6613661a | Iustin Pop | @type component: string
|
3158 | 6613661a | Iustin Pop | @param component: which part of the instance is transferred now,
|
3159 | 6613661a | Iustin Pop | e.g. 'disk/0'
|
3160 | 1651d116 | Michael Hanselmann | @param ieio: Input/output type
|
3161 | 1651d116 | Michael Hanselmann | @param ieioargs: Input/output arguments
|
3162 | 1651d116 | Michael Hanselmann |
|
3163 | 1651d116 | Michael Hanselmann | """
|
3164 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
3165 | 1651d116 | Michael Hanselmann | prefix = "import"
|
3166 | 1651d116 | Michael Hanselmann | |
3167 | 1651d116 | Michael Hanselmann | if not (host is None and port is None): |
3168 | 1651d116 | Michael Hanselmann | _Fail("Can not specify host or port on import")
|
3169 | 1651d116 | Michael Hanselmann | |
3170 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
3171 | 1651d116 | Michael Hanselmann | prefix = "export"
|
3172 | 1651d116 | Michael Hanselmann | |
3173 | 1651d116 | Michael Hanselmann | if host is None or port is None: |
3174 | 1651d116 | Michael Hanselmann | _Fail("Host and port must be specified for an export")
|
3175 | 1651d116 | Michael Hanselmann | |
3176 | 1651d116 | Michael Hanselmann | else:
|
3177 | 1651d116 | Michael Hanselmann | _Fail("Invalid mode %r", mode)
|
3178 | 1651d116 | Michael Hanselmann | |
3179 | eb630f50 | Michael Hanselmann | if (opts.key_name is None) ^ (opts.ca_pem is None): |
3180 | 1651d116 | Michael Hanselmann | _Fail("Cluster certificate can only be used for both key and CA")
|
3181 | 1651d116 | Michael Hanselmann | |
3182 | 2ad5550d | Michael Hanselmann | (cmd_env, cmd_prefix, cmd_suffix, exp_size) = \ |
3183 | 1651d116 | Michael Hanselmann | _GetImportExportIoCommand(instance, mode, ieio, ieioargs) |
3184 | 1651d116 | Michael Hanselmann | |
3185 | eb630f50 | Michael Hanselmann | if opts.key_name is None: |
3186 | 1651d116 | Michael Hanselmann | # Use server.pem
|
3187 | 1651d116 | Michael Hanselmann | key_path = constants.NODED_CERT_FILE |
3188 | 1651d116 | Michael Hanselmann | cert_path = constants.NODED_CERT_FILE |
3189 | eb630f50 | Michael Hanselmann | assert opts.ca_pem is None |
3190 | 1651d116 | Michael Hanselmann | else:
|
3191 | 1651d116 | Michael Hanselmann | (_, key_path, cert_path) = _GetX509Filenames(constants.CRYPTO_KEYS_DIR, |
3192 | eb630f50 | Michael Hanselmann | opts.key_name) |
3193 | eb630f50 | Michael Hanselmann | assert opts.ca_pem is not None |
3194 | 1651d116 | Michael Hanselmann | |
3195 | 63bcea2a | Michael Hanselmann | for i in [key_path, cert_path]: |
3196 | dcaabc4f | Michael Hanselmann | if not os.path.exists(i): |
3197 | 63bcea2a | Michael Hanselmann | _Fail("File '%s' does not exist" % i)
|
3198 | 63bcea2a | Michael Hanselmann | |
3199 | 6613661a | Iustin Pop | status_dir = _CreateImportExportStatusDir("%s-%s" % (prefix, component))
|
3200 | 1651d116 | Michael Hanselmann | try:
|
3201 | 1651d116 | Michael Hanselmann | status_file = utils.PathJoin(status_dir, _IES_STATUS_FILE) |
3202 | 1651d116 | Michael Hanselmann | pid_file = utils.PathJoin(status_dir, _IES_PID_FILE) |
3203 | 63bcea2a | Michael Hanselmann | ca_file = utils.PathJoin(status_dir, _IES_CA_FILE) |
3204 | 1651d116 | Michael Hanselmann | |
3205 | eb630f50 | Michael Hanselmann | if opts.ca_pem is None: |
3206 | 1651d116 | Michael Hanselmann | # Use server.pem
|
3207 | 63bcea2a | Michael Hanselmann | ca = utils.ReadFile(constants.NODED_CERT_FILE) |
3208 | eb630f50 | Michael Hanselmann | else:
|
3209 | eb630f50 | Michael Hanselmann | ca = opts.ca_pem |
3210 | 63bcea2a | Michael Hanselmann | |
3211 | eb630f50 | Michael Hanselmann | # Write CA file
|
3212 | 63bcea2a | Michael Hanselmann | utils.WriteFile(ca_file, data=ca, mode=0400)
|
3213 | 1651d116 | Michael Hanselmann | |
3214 | 1651d116 | Michael Hanselmann | cmd = [ |
3215 | 1651d116 | Michael Hanselmann | constants.IMPORT_EXPORT_DAEMON, |
3216 | 1651d116 | Michael Hanselmann | status_file, mode, |
3217 | 1651d116 | Michael Hanselmann | "--key=%s" % key_path,
|
3218 | 1651d116 | Michael Hanselmann | "--cert=%s" % cert_path,
|
3219 | 63bcea2a | Michael Hanselmann | "--ca=%s" % ca_file,
|
3220 | 1651d116 | Michael Hanselmann | ] |
3221 | 1651d116 | Michael Hanselmann | |
3222 | 1651d116 | Michael Hanselmann | if host:
|
3223 | 1651d116 | Michael Hanselmann | cmd.append("--host=%s" % host)
|
3224 | 1651d116 | Michael Hanselmann | |
3225 | 1651d116 | Michael Hanselmann | if port:
|
3226 | 1651d116 | Michael Hanselmann | cmd.append("--port=%s" % port)
|
3227 | 1651d116 | Michael Hanselmann | |
3228 | 855d2fc7 | Michael Hanselmann | if opts.ipv6:
|
3229 | 855d2fc7 | Michael Hanselmann | cmd.append("--ipv6")
|
3230 | 855d2fc7 | Michael Hanselmann | else:
|
3231 | 855d2fc7 | Michael Hanselmann | cmd.append("--ipv4")
|
3232 | 855d2fc7 | Michael Hanselmann | |
3233 | a5310c2a | Michael Hanselmann | if opts.compress:
|
3234 | a5310c2a | Michael Hanselmann | cmd.append("--compress=%s" % opts.compress)
|
3235 | a5310c2a | Michael Hanselmann | |
3236 | af1d39b1 | Michael Hanselmann | if opts.magic:
|
3237 | af1d39b1 | Michael Hanselmann | cmd.append("--magic=%s" % opts.magic)
|
3238 | af1d39b1 | Michael Hanselmann | |
3239 | 2ad5550d | Michael Hanselmann | if exp_size is not None: |
3240 | 2ad5550d | Michael Hanselmann | cmd.append("--expected-size=%s" % exp_size)
|
3241 | 2ad5550d | Michael Hanselmann | |
3242 | 1651d116 | Michael Hanselmann | if cmd_prefix:
|
3243 | 1651d116 | Michael Hanselmann | cmd.append("--cmd-prefix=%s" % cmd_prefix)
|
3244 | 1651d116 | Michael Hanselmann | |
3245 | 1651d116 | Michael Hanselmann | if cmd_suffix:
|
3246 | 1651d116 | Michael Hanselmann | cmd.append("--cmd-suffix=%s" % cmd_suffix)
|
3247 | 1651d116 | Michael Hanselmann | |
3248 | 4478301b | Michael Hanselmann | if mode == constants.IEM_EXPORT:
|
3249 | 4478301b | Michael Hanselmann | # Retry connection a few times when connecting to remote peer
|
3250 | 4478301b | Michael Hanselmann | cmd.append("--connect-retries=%s" % constants.RIE_CONNECT_RETRIES)
|
3251 | 4478301b | Michael Hanselmann | cmd.append("--connect-timeout=%s" % constants.RIE_CONNECT_ATTEMPT_TIMEOUT)
|
3252 | 4478301b | Michael Hanselmann | elif opts.connect_timeout is not None: |
3253 | 4478301b | Michael Hanselmann | assert mode == constants.IEM_IMPORT
|
3254 | 4478301b | Michael Hanselmann | # Overall timeout for establishing connection while listening
|
3255 | 4478301b | Michael Hanselmann | cmd.append("--connect-timeout=%s" % opts.connect_timeout)
|
3256 | 4478301b | Michael Hanselmann | |
3257 | 6aa7a354 | Iustin Pop | logfile = _InstanceLogName(prefix, instance.os, instance.name, component) |
3258 | 1651d116 | Michael Hanselmann | |
3259 | 1651d116 | Michael Hanselmann | # TODO: Once _InstanceLogName uses tempfile.mkstemp, StartDaemon has
|
3260 | 1651d116 | Michael Hanselmann | # support for receiving a file descriptor for output
|
3261 | 1651d116 | Michael Hanselmann | utils.StartDaemon(cmd, env=cmd_env, pidfile=pid_file, |
3262 | 1651d116 | Michael Hanselmann | output=logfile) |
3263 | 1651d116 | Michael Hanselmann | |
3264 | 1651d116 | Michael Hanselmann | # The import/export name is simply the status directory name
|
3265 | 1651d116 | Michael Hanselmann | return os.path.basename(status_dir)
|
3266 | 1651d116 | Michael Hanselmann | |
3267 | 1651d116 | Michael Hanselmann | except Exception: |
3268 | 1651d116 | Michael Hanselmann | shutil.rmtree(status_dir, ignore_errors=True)
|
3269 | 1651d116 | Michael Hanselmann | raise
|
3270 | 1651d116 | Michael Hanselmann | |
3271 | 1651d116 | Michael Hanselmann | |
3272 | 1651d116 | Michael Hanselmann | def GetImportExportStatus(names): |
3273 | 1651d116 | Michael Hanselmann | """Returns import/export daemon status.
|
3274 | 1651d116 | Michael Hanselmann |
|
3275 | 1651d116 | Michael Hanselmann | @type names: sequence
|
3276 | 1651d116 | Michael Hanselmann | @param names: List of names
|
3277 | 1651d116 | Michael Hanselmann | @rtype: List of dicts
|
3278 | 1651d116 | Michael Hanselmann | @return: Returns a list of the state of each named import/export or None if a
|
3279 | 1651d116 | Michael Hanselmann | status couldn't be read
|
3280 | 1651d116 | Michael Hanselmann |
|
3281 | 1651d116 | Michael Hanselmann | """
|
3282 | 1651d116 | Michael Hanselmann | result = [] |
3283 | 1651d116 | Michael Hanselmann | |
3284 | 1651d116 | Michael Hanselmann | for name in names: |
3285 | 1651d116 | Michael Hanselmann | status_file = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name, |
3286 | 1651d116 | Michael Hanselmann | _IES_STATUS_FILE) |
3287 | 1651d116 | Michael Hanselmann | |
3288 | 1651d116 | Michael Hanselmann | try:
|
3289 | 1651d116 | Michael Hanselmann | data = utils.ReadFile(status_file) |
3290 | 1651d116 | Michael Hanselmann | except EnvironmentError, err: |
3291 | 1651d116 | Michael Hanselmann | if err.errno != errno.ENOENT:
|
3292 | 1651d116 | Michael Hanselmann | raise
|
3293 | 1651d116 | Michael Hanselmann | data = None
|
3294 | 1651d116 | Michael Hanselmann | |
3295 | 1651d116 | Michael Hanselmann | if not data: |
3296 | 1651d116 | Michael Hanselmann | result.append(None)
|
3297 | 1651d116 | Michael Hanselmann | continue
|
3298 | 1651d116 | Michael Hanselmann | |
3299 | 1651d116 | Michael Hanselmann | result.append(serializer.LoadJson(data)) |
3300 | 1651d116 | Michael Hanselmann | |
3301 | 1651d116 | Michael Hanselmann | return result
|
3302 | 1651d116 | Michael Hanselmann | |
3303 | 1651d116 | Michael Hanselmann | |
3304 | f81c4737 | Michael Hanselmann | def AbortImportExport(name): |
3305 | f81c4737 | Michael Hanselmann | """Sends SIGTERM to a running import/export daemon.
|
3306 | f81c4737 | Michael Hanselmann |
|
3307 | f81c4737 | Michael Hanselmann | """
|
3308 | f81c4737 | Michael Hanselmann | logging.info("Abort import/export %s", name)
|
3309 | f81c4737 | Michael Hanselmann | |
3310 | f81c4737 | Michael Hanselmann | status_dir = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name) |
3311 | f81c4737 | Michael Hanselmann | pid = utils.ReadLockedPidFile(utils.PathJoin(status_dir, _IES_PID_FILE)) |
3312 | f81c4737 | Michael Hanselmann | |
3313 | f81c4737 | Michael Hanselmann | if pid:
|
3314 | f81c4737 | Michael Hanselmann | logging.info("Import/export %s is running with PID %s, sending SIGTERM",
|
3315 | f81c4737 | Michael Hanselmann | name, pid) |
3316 | 560cbec1 | Michael Hanselmann | utils.IgnoreProcessNotFound(os.kill, pid, signal.SIGTERM) |
3317 | f81c4737 | Michael Hanselmann | |
3318 | f81c4737 | Michael Hanselmann | |
3319 | 1651d116 | Michael Hanselmann | def CleanupImportExport(name): |
3320 | 1651d116 | Michael Hanselmann | """Cleanup after an import or export.
|
3321 | 1651d116 | Michael Hanselmann |
|
3322 | 1651d116 | Michael Hanselmann | If the import/export daemon is still running it's killed. Afterwards the
|
3323 | 1651d116 | Michael Hanselmann | whole status directory is removed.
|
3324 | 1651d116 | Michael Hanselmann |
|
3325 | 1651d116 | Michael Hanselmann | """
|
3326 | 1651d116 | Michael Hanselmann | logging.info("Finalizing import/export %s", name)
|
3327 | 1651d116 | Michael Hanselmann | |
3328 | 1651d116 | Michael Hanselmann | status_dir = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name) |
3329 | 1651d116 | Michael Hanselmann | |
3330 | debed9ae | Michael Hanselmann | pid = utils.ReadLockedPidFile(utils.PathJoin(status_dir, _IES_PID_FILE)) |
3331 | 1651d116 | Michael Hanselmann | |
3332 | 1651d116 | Michael Hanselmann | if pid:
|
3333 | 1651d116 | Michael Hanselmann | logging.info("Import/export %s is still running with PID %s",
|
3334 | 1651d116 | Michael Hanselmann | name, pid) |
3335 | 1651d116 | Michael Hanselmann | utils.KillProcess(pid, waitpid=False)
|
3336 | 1651d116 | Michael Hanselmann | |
3337 | 1651d116 | Michael Hanselmann | shutil.rmtree(status_dir, ignore_errors=True)
|
3338 | 1651d116 | Michael Hanselmann | |
3339 | 1651d116 | Michael Hanselmann | |
3340 | 6b93ec9d | Iustin Pop | def _FindDisks(nodes_ip, disks): |
3341 | 6b93ec9d | Iustin Pop | """Sets the physical ID on disks and returns the block devices.
|
3342 | 6b93ec9d | Iustin Pop |
|
3343 | 6b93ec9d | Iustin Pop | """
|
3344 | 6b93ec9d | Iustin Pop | # set the correct physical ID
|
3345 | b705c7a6 | Manuel Franceschini | my_name = netutils.Hostname.GetSysName() |
3346 | 6b93ec9d | Iustin Pop | for cf in disks: |
3347 | 6b93ec9d | Iustin Pop | cf.SetPhysicalID(my_name, nodes_ip) |
3348 | 6b93ec9d | Iustin Pop | |
3349 | 6b93ec9d | Iustin Pop | bdevs = [] |
3350 | 6b93ec9d | Iustin Pop | |
3351 | 6b93ec9d | Iustin Pop | for cf in disks: |
3352 | 6b93ec9d | Iustin Pop | rd = _RecursiveFindBD(cf) |
3353 | 6b93ec9d | Iustin Pop | if rd is None: |
3354 | 5a533f8a | Iustin Pop | _Fail("Can't find device %s", cf)
|
3355 | 6b93ec9d | Iustin Pop | bdevs.append(rd) |
3356 | 5a533f8a | Iustin Pop | return bdevs
|
3357 | 6b93ec9d | Iustin Pop | |
3358 | 6b93ec9d | Iustin Pop | |
3359 | 6b93ec9d | Iustin Pop | def DrbdDisconnectNet(nodes_ip, disks): |
3360 | 6b93ec9d | Iustin Pop | """Disconnects the network on a list of drbd devices.
|
3361 | 6b93ec9d | Iustin Pop |
|
3362 | 6b93ec9d | Iustin Pop | """
|
3363 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
3364 | 6b93ec9d | Iustin Pop | |
3365 | 6b93ec9d | Iustin Pop | # disconnect disks
|
3366 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3367 | 6b93ec9d | Iustin Pop | try:
|
3368 | 6b93ec9d | Iustin Pop | rd.DisconnectNet() |
3369 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
3370 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration to standalone mode: %s",
|
3371 | 2cc6781a | Iustin Pop | err, exc=True)
|
3372 | 6b93ec9d | Iustin Pop | |
3373 | 6b93ec9d | Iustin Pop | |
3374 | 6b93ec9d | Iustin Pop | def DrbdAttachNet(nodes_ip, disks, instance_name, multimaster): |
3375 | 6b93ec9d | Iustin Pop | """Attaches the network on a list of drbd devices.
|
3376 | 6b93ec9d | Iustin Pop |
|
3377 | 6b93ec9d | Iustin Pop | """
|
3378 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
3379 | 6b93ec9d | Iustin Pop | |
3380 | 6b93ec9d | Iustin Pop | if multimaster:
|
3381 | 53c776b5 | Iustin Pop | for idx, rd in enumerate(bdevs): |
3382 | 6b93ec9d | Iustin Pop | try:
|
3383 | 53c776b5 | Iustin Pop | _SymlinkBlockDev(instance_name, rd.dev_path, idx) |
3384 | 6b93ec9d | Iustin Pop | except EnvironmentError, err: |
3385 | 2cc6781a | Iustin Pop | _Fail("Can't create symlink: %s", err)
|
3386 | 6b93ec9d | Iustin Pop | # reconnect disks, switch to new master configuration and if
|
3387 | 6b93ec9d | Iustin Pop | # needed primary mode
|
3388 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3389 | 6b93ec9d | Iustin Pop | try:
|
3390 | 6b93ec9d | Iustin Pop | rd.AttachNet(multimaster) |
3391 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
3392 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration: %s", err)
|
3393 | 3c0cdc83 | Michael Hanselmann | |
3394 | 6b93ec9d | Iustin Pop | # wait until the disks are connected; we need to retry the re-attach
|
3395 | 6b93ec9d | Iustin Pop | # if the device becomes standalone, as this might happen if the one
|
3396 | 6b93ec9d | Iustin Pop | # node disconnects and reconnects in a different mode before the
|
3397 | 6b93ec9d | Iustin Pop | # other node reconnects; in this case, one or both of the nodes will
|
3398 | 6b93ec9d | Iustin Pop | # decide it has wrong configuration and switch to standalone
|
3399 | 3c0cdc83 | Michael Hanselmann | |
3400 | 3c0cdc83 | Michael Hanselmann | def _Attach(): |
3401 | 6b93ec9d | Iustin Pop | all_connected = True
|
3402 | 3c0cdc83 | Michael Hanselmann | |
3403 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3404 | 6b93ec9d | Iustin Pop | stats = rd.GetProcStatus() |
3405 | 3c0cdc83 | Michael Hanselmann | |
3406 | 3c0cdc83 | Michael Hanselmann | all_connected = (all_connected and
|
3407 | 3c0cdc83 | Michael Hanselmann | (stats.is_connected or stats.is_in_resync))
|
3408 | 3c0cdc83 | Michael Hanselmann | |
3409 | 6b93ec9d | Iustin Pop | if stats.is_standalone:
|
3410 | 6b93ec9d | Iustin Pop | # peer had different config info and this node became
|
3411 | 6b93ec9d | Iustin Pop | # standalone, even though this should not happen with the
|
3412 | 6b93ec9d | Iustin Pop | # new staged way of changing disk configs
|
3413 | 6b93ec9d | Iustin Pop | try:
|
3414 | c738375b | Iustin Pop | rd.AttachNet(multimaster) |
3415 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
3416 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration: %s", err)
|
3417 | 3c0cdc83 | Michael Hanselmann | |
3418 | 3c0cdc83 | Michael Hanselmann | if not all_connected: |
3419 | 3c0cdc83 | Michael Hanselmann | raise utils.RetryAgain()
|
3420 | 3c0cdc83 | Michael Hanselmann | |
3421 | 3c0cdc83 | Michael Hanselmann | try:
|
3422 | 3c0cdc83 | Michael Hanselmann | # Start with a delay of 100 miliseconds and go up to 5 seconds
|
3423 | 3c0cdc83 | Michael Hanselmann | utils.Retry(_Attach, (0.1, 1.5, 5.0), 2 * 60) |
3424 | 3c0cdc83 | Michael Hanselmann | except utils.RetryTimeout:
|
3425 | afdc3985 | Iustin Pop | _Fail("Timeout in disk reconnecting")
|
3426 | 3c0cdc83 | Michael Hanselmann | |
3427 | 6b93ec9d | Iustin Pop | if multimaster:
|
3428 | 6b93ec9d | Iustin Pop | # change to primary mode
|
3429 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3430 | d3da87b8 | Iustin Pop | try:
|
3431 | d3da87b8 | Iustin Pop | rd.Open() |
3432 | d3da87b8 | Iustin Pop | except errors.BlockDeviceError, err:
|
3433 | 2cc6781a | Iustin Pop | _Fail("Can't change to primary mode: %s", err)
|
3434 | 6b93ec9d | Iustin Pop | |
3435 | 6b93ec9d | Iustin Pop | |
3436 | 6b93ec9d | Iustin Pop | def DrbdWaitSync(nodes_ip, disks): |
3437 | 6b93ec9d | Iustin Pop | """Wait until DRBDs have synchronized.
|
3438 | 6b93ec9d | Iustin Pop |
|
3439 | 6b93ec9d | Iustin Pop | """
|
3440 | db8667b7 | Iustin Pop | def _helper(rd): |
3441 | db8667b7 | Iustin Pop | stats = rd.GetProcStatus() |
3442 | db8667b7 | Iustin Pop | if not (stats.is_connected or stats.is_in_resync): |
3443 | db8667b7 | Iustin Pop | raise utils.RetryAgain()
|
3444 | db8667b7 | Iustin Pop | return stats
|
3445 | db8667b7 | Iustin Pop | |
3446 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
3447 | 6b93ec9d | Iustin Pop | |
3448 | 6b93ec9d | Iustin Pop | min_resync = 100
|
3449 | 6b93ec9d | Iustin Pop | alldone = True
|
3450 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3451 | db8667b7 | Iustin Pop | try:
|
3452 | db8667b7 | Iustin Pop | # poll each second for 15 seconds
|
3453 | db8667b7 | Iustin Pop | stats = utils.Retry(_helper, 1, 15, args=[rd]) |
3454 | db8667b7 | Iustin Pop | except utils.RetryTimeout:
|
3455 | db8667b7 | Iustin Pop | stats = rd.GetProcStatus() |
3456 | db8667b7 | Iustin Pop | # last check
|
3457 | db8667b7 | Iustin Pop | if not (stats.is_connected or stats.is_in_resync): |
3458 | db8667b7 | Iustin Pop | _Fail("DRBD device %s is not in sync: stats=%s", rd, stats)
|
3459 | 6b93ec9d | Iustin Pop | alldone = alldone and (not stats.is_in_resync) |
3460 | 6b93ec9d | Iustin Pop | if stats.sync_percent is not None: |
3461 | 6b93ec9d | Iustin Pop | min_resync = min(min_resync, stats.sync_percent)
|
3462 | afdc3985 | Iustin Pop | |
3463 | c26a6bd2 | Iustin Pop | return (alldone, min_resync)
|
3464 | 6b93ec9d | Iustin Pop | |
3465 | 6b93ec9d | Iustin Pop | |
3466 | c46b9782 | Luca Bigliardi | def GetDrbdUsermodeHelper(): |
3467 | c46b9782 | Luca Bigliardi | """Returns DRBD usermode helper currently configured.
|
3468 | c46b9782 | Luca Bigliardi |
|
3469 | c46b9782 | Luca Bigliardi | """
|
3470 | c46b9782 | Luca Bigliardi | try:
|
3471 | c46b9782 | Luca Bigliardi | return bdev.BaseDRBD.GetUsermodeHelper()
|
3472 | c46b9782 | Luca Bigliardi | except errors.BlockDeviceError, err:
|
3473 | c46b9782 | Luca Bigliardi | _Fail(str(err))
|
3474 | c46b9782 | Luca Bigliardi | |
3475 | c46b9782 | Luca Bigliardi | |
3476 | f5118ade | Iustin Pop | def PowercycleNode(hypervisor_type): |
3477 | f5118ade | Iustin Pop | """Hard-powercycle the node.
|
3478 | f5118ade | Iustin Pop |
|
3479 | f5118ade | Iustin Pop | Because we need to return first, and schedule the powercycle in the
|
3480 | f5118ade | Iustin Pop | background, we won't be able to report failures nicely.
|
3481 | f5118ade | Iustin Pop |
|
3482 | f5118ade | Iustin Pop | """
|
3483 | f5118ade | Iustin Pop | hyper = hypervisor.GetHypervisor(hypervisor_type) |
3484 | f5118ade | Iustin Pop | try:
|
3485 | f5118ade | Iustin Pop | pid = os.fork() |
3486 | 29921401 | Iustin Pop | except OSError: |
3487 | f5118ade | Iustin Pop | # if we can't fork, we'll pretend that we're in the child process
|
3488 | f5118ade | Iustin Pop | pid = 0
|
3489 | f5118ade | Iustin Pop | if pid > 0: |
3490 | c26a6bd2 | Iustin Pop | return "Reboot scheduled in 5 seconds" |
3491 | 1af6ac0f | Luca Bigliardi | # ensure the child is running on ram
|
3492 | 1af6ac0f | Luca Bigliardi | try:
|
3493 | 1af6ac0f | Luca Bigliardi | utils.Mlockall() |
3494 | b459a848 | Andrea Spadaccini | except Exception: # pylint: disable=W0703 |
3495 | 1af6ac0f | Luca Bigliardi | pass
|
3496 | f5118ade | Iustin Pop | time.sleep(5)
|
3497 | f5118ade | Iustin Pop | hyper.PowercycleNode() |
3498 | f5118ade | Iustin Pop | |
3499 | f5118ade | Iustin Pop | |
3500 | a8083063 | Iustin Pop | class HooksRunner(object): |
3501 | a8083063 | Iustin Pop | """Hook runner.
|
3502 | a8083063 | Iustin Pop |
|
3503 | 10c2650b | Iustin Pop | This class is instantiated on the node side (ganeti-noded) and not
|
3504 | 10c2650b | Iustin Pop | on the master side.
|
3505 | a8083063 | Iustin Pop |
|
3506 | a8083063 | Iustin Pop | """
|
3507 | a8083063 | Iustin Pop | def __init__(self, hooks_base_dir=None): |
3508 | a8083063 | Iustin Pop | """Constructor for hooks runner.
|
3509 | a8083063 | Iustin Pop |
|
3510 | 10c2650b | Iustin Pop | @type hooks_base_dir: str or None
|
3511 | 10c2650b | Iustin Pop | @param hooks_base_dir: if not None, this overrides the
|
3512 | 10c2650b | Iustin Pop | L{constants.HOOKS_BASE_DIR} (useful for unittests)
|
3513 | a8083063 | Iustin Pop |
|
3514 | a8083063 | Iustin Pop | """
|
3515 | a8083063 | Iustin Pop | if hooks_base_dir is None: |
3516 | a8083063 | Iustin Pop | hooks_base_dir = constants.HOOKS_BASE_DIR |
3517 | fe267188 | Iustin Pop | # yeah, _BASE_DIR is not valid for attributes, we use it like a
|
3518 | fe267188 | Iustin Pop | # constant
|
3519 | b459a848 | Andrea Spadaccini | self._BASE_DIR = hooks_base_dir # pylint: disable=C0103 |
3520 | a8083063 | Iustin Pop | |
3521 | 0fa481f5 | Andrea Spadaccini | def RunLocalHooks(self, node_list, hpath, phase, env): |
3522 | 0fa481f5 | Andrea Spadaccini | """Check that the hooks will be run only locally and then run them.
|
3523 | 0fa481f5 | Andrea Spadaccini |
|
3524 | 0fa481f5 | Andrea Spadaccini | """
|
3525 | 0fa481f5 | Andrea Spadaccini | assert len(node_list) == 1 |
3526 | 0fa481f5 | Andrea Spadaccini | node = node_list[0]
|
3527 | 0fa481f5 | Andrea Spadaccini | _, myself = ssconf.GetMasterAndMyself() |
3528 | 0fa481f5 | Andrea Spadaccini | assert node == myself
|
3529 | 0fa481f5 | Andrea Spadaccini | |
3530 | 0fa481f5 | Andrea Spadaccini | results = self.RunHooks(hpath, phase, env)
|
3531 | 0fa481f5 | Andrea Spadaccini | |
3532 | 0fa481f5 | Andrea Spadaccini | # Return values in the form expected by HooksMaster
|
3533 | 0fa481f5 | Andrea Spadaccini | return {node: (None, False, results)} |
3534 | 0fa481f5 | Andrea Spadaccini | |
3535 | a8083063 | Iustin Pop | def RunHooks(self, hpath, phase, env): |
3536 | a8083063 | Iustin Pop | """Run the scripts in the hooks directory.
|
3537 | a8083063 | Iustin Pop |
|
3538 | 10c2650b | Iustin Pop | @type hpath: str
|
3539 | 10c2650b | Iustin Pop | @param hpath: the path to the hooks directory which
|
3540 | 10c2650b | Iustin Pop | holds the scripts
|
3541 | 10c2650b | Iustin Pop | @type phase: str
|
3542 | 10c2650b | Iustin Pop | @param phase: either L{constants.HOOKS_PHASE_PRE} or
|
3543 | 10c2650b | Iustin Pop | L{constants.HOOKS_PHASE_POST}
|
3544 | 10c2650b | Iustin Pop | @type env: dict
|
3545 | 10c2650b | Iustin Pop | @param env: dictionary with the environment for the hook
|
3546 | 10c2650b | Iustin Pop | @rtype: list
|
3547 | 10c2650b | Iustin Pop | @return: list of 3-element tuples:
|
3548 | 10c2650b | Iustin Pop | - script path
|
3549 | 10c2650b | Iustin Pop | - script result, either L{constants.HKR_SUCCESS} or
|
3550 | 10c2650b | Iustin Pop | L{constants.HKR_FAIL}
|
3551 | 10c2650b | Iustin Pop | - output of the script
|
3552 | 10c2650b | Iustin Pop |
|
3553 | 10c2650b | Iustin Pop | @raise errors.ProgrammerError: for invalid input
|
3554 | 10c2650b | Iustin Pop | parameters
|
3555 | a8083063 | Iustin Pop |
|
3556 | a8083063 | Iustin Pop | """
|
3557 | a8083063 | Iustin Pop | if phase == constants.HOOKS_PHASE_PRE:
|
3558 | a8083063 | Iustin Pop | suffix = "pre"
|
3559 | a8083063 | Iustin Pop | elif phase == constants.HOOKS_PHASE_POST:
|
3560 | a8083063 | Iustin Pop | suffix = "post"
|
3561 | a8083063 | Iustin Pop | else:
|
3562 | 3fb4f740 | Iustin Pop | _Fail("Unknown hooks phase '%s'", phase)
|
3563 | 3fb4f740 | Iustin Pop | |
3564 | a8083063 | Iustin Pop | subdir = "%s-%s.d" % (hpath, suffix)
|
3565 | 0411c011 | Iustin Pop | dir_name = utils.PathJoin(self._BASE_DIR, subdir)
|
3566 | 6bb65e3a | Guido Trotter | |
3567 | 6bb65e3a | Guido Trotter | results = [] |
3568 | a9b7e346 | Iustin Pop | |
3569 | a9b7e346 | Iustin Pop | if not os.path.isdir(dir_name): |
3570 | a9b7e346 | Iustin Pop | # for non-existing/non-dirs, we simply exit instead of logging a
|
3571 | a9b7e346 | Iustin Pop | # warning at every operation
|
3572 | a9b7e346 | Iustin Pop | return results
|
3573 | a9b7e346 | Iustin Pop | |
3574 | a9b7e346 | Iustin Pop | runparts_results = utils.RunParts(dir_name, env=env, reset_env=True)
|
3575 | a9b7e346 | Iustin Pop | |
3576 | 6bb65e3a | Guido Trotter | for (relname, relstatus, runresult) in runparts_results: |
3577 | 6bb65e3a | Guido Trotter | if relstatus == constants.RUNPARTS_SKIP:
|
3578 | a8083063 | Iustin Pop | rrval = constants.HKR_SKIP |
3579 | a8083063 | Iustin Pop | output = ""
|
3580 | 6bb65e3a | Guido Trotter | elif relstatus == constants.RUNPARTS_ERR:
|
3581 | 6bb65e3a | Guido Trotter | rrval = constants.HKR_FAIL |
3582 | 6bb65e3a | Guido Trotter | output = "Hook script execution error: %s" % runresult
|
3583 | 6bb65e3a | Guido Trotter | elif relstatus == constants.RUNPARTS_RUN:
|
3584 | 6bb65e3a | Guido Trotter | if runresult.failed:
|
3585 | a8083063 | Iustin Pop | rrval = constants.HKR_FAIL |
3586 | a8083063 | Iustin Pop | else:
|
3587 | 6bb65e3a | Guido Trotter | rrval = constants.HKR_SUCCESS |
3588 | 6bb65e3a | Guido Trotter | output = utils.SafeEncode(runresult.output.strip()) |
3589 | 6bb65e3a | Guido Trotter | results.append(("%s/%s" % (subdir, relname), rrval, output))
|
3590 | 6bb65e3a | Guido Trotter | |
3591 | 6bb65e3a | Guido Trotter | return results
|
3592 | 3f78eef2 | Iustin Pop | |
3593 | 3f78eef2 | Iustin Pop | |
3594 | 8d528b7c | Iustin Pop | class IAllocatorRunner(object): |
3595 | 8d528b7c | Iustin Pop | """IAllocator runner.
|
3596 | 8d528b7c | Iustin Pop |
|
3597 | 8d528b7c | Iustin Pop | This class is instantiated on the node side (ganeti-noded) and not on
|
3598 | 8d528b7c | Iustin Pop | the master side.
|
3599 | 8d528b7c | Iustin Pop |
|
3600 | 8d528b7c | Iustin Pop | """
|
3601 | 7e950d31 | Iustin Pop | @staticmethod
|
3602 | 7e950d31 | Iustin Pop | def Run(name, idata): |
3603 | 8d528b7c | Iustin Pop | """Run an iallocator script.
|
3604 | 8d528b7c | Iustin Pop |
|
3605 | 10c2650b | Iustin Pop | @type name: str
|
3606 | 10c2650b | Iustin Pop | @param name: the iallocator script name
|
3607 | 10c2650b | Iustin Pop | @type idata: str
|
3608 | 10c2650b | Iustin Pop | @param idata: the allocator input data
|
3609 | 10c2650b | Iustin Pop |
|
3610 | 10c2650b | Iustin Pop | @rtype: tuple
|
3611 | 87f5c298 | Iustin Pop | @return: two element tuple of:
|
3612 | 87f5c298 | Iustin Pop | - status
|
3613 | 87f5c298 | Iustin Pop | - either error message or stdout of allocator (for success)
|
3614 | 8d528b7c | Iustin Pop |
|
3615 | 8d528b7c | Iustin Pop | """
|
3616 | 8d528b7c | Iustin Pop | alloc_script = utils.FindFile(name, constants.IALLOCATOR_SEARCH_PATH, |
3617 | 8d528b7c | Iustin Pop | os.path.isfile) |
3618 | 8d528b7c | Iustin Pop | if alloc_script is None: |
3619 | 87f5c298 | Iustin Pop | _Fail("iallocator module '%s' not found in the search path", name)
|
3620 | 8d528b7c | Iustin Pop | |
3621 | 8d528b7c | Iustin Pop | fd, fin_name = tempfile.mkstemp(prefix="ganeti-iallocator.")
|
3622 | 8d528b7c | Iustin Pop | try:
|
3623 | 8d528b7c | Iustin Pop | os.write(fd, idata) |
3624 | 8d528b7c | Iustin Pop | os.close(fd) |
3625 | 8d528b7c | Iustin Pop | result = utils.RunCmd([alloc_script, fin_name]) |
3626 | 8d528b7c | Iustin Pop | if result.failed:
|
3627 | 87f5c298 | Iustin Pop | _Fail("iallocator module '%s' failed: %s, output '%s'",
|
3628 | 87f5c298 | Iustin Pop | name, result.fail_reason, result.output) |
3629 | 8d528b7c | Iustin Pop | finally:
|
3630 | 8d528b7c | Iustin Pop | os.unlink(fin_name) |
3631 | 8d528b7c | Iustin Pop | |
3632 | c26a6bd2 | Iustin Pop | return result.stdout
|
3633 | 8d528b7c | Iustin Pop | |
3634 | 8d528b7c | Iustin Pop | |
3635 | 3f78eef2 | Iustin Pop | class DevCacheManager(object): |
3636 | c99a3cc0 | Manuel Franceschini | """Simple class for managing a cache of block device information.
|
3637 | 3f78eef2 | Iustin Pop |
|
3638 | 3f78eef2 | Iustin Pop | """
|
3639 | 3f78eef2 | Iustin Pop | _DEV_PREFIX = "/dev/"
|
3640 | 3f78eef2 | Iustin Pop | _ROOT_DIR = constants.BDEV_CACHE_DIR |
3641 | 3f78eef2 | Iustin Pop | |
3642 | 3f78eef2 | Iustin Pop | @classmethod
|
3643 | 3f78eef2 | Iustin Pop | def _ConvertPath(cls, dev_path): |
3644 | 3f78eef2 | Iustin Pop | """Converts a /dev/name path to the cache file name.
|
3645 | 3f78eef2 | Iustin Pop |
|
3646 | 3f78eef2 | Iustin Pop | This replaces slashes with underscores and strips the /dev
|
3647 | 10c2650b | Iustin Pop | prefix. It then returns the full path to the cache file.
|
3648 | 10c2650b | Iustin Pop |
|
3649 | 10c2650b | Iustin Pop | @type dev_path: str
|
3650 | 10c2650b | Iustin Pop | @param dev_path: the C{/dev/} path name
|
3651 | 10c2650b | Iustin Pop | @rtype: str
|
3652 | 10c2650b | Iustin Pop | @return: the converted path name
|
3653 | 3f78eef2 | Iustin Pop |
|
3654 | 3f78eef2 | Iustin Pop | """
|
3655 | 3f78eef2 | Iustin Pop | if dev_path.startswith(cls._DEV_PREFIX):
|
3656 | 3f78eef2 | Iustin Pop | dev_path = dev_path[len(cls._DEV_PREFIX):]
|
3657 | 3f78eef2 | Iustin Pop | dev_path = dev_path.replace("/", "_") |
3658 | 0411c011 | Iustin Pop | fpath = utils.PathJoin(cls._ROOT_DIR, "bdev_%s" % dev_path)
|
3659 | 3f78eef2 | Iustin Pop | return fpath
|
3660 | 3f78eef2 | Iustin Pop | |
3661 | 3f78eef2 | Iustin Pop | @classmethod
|
3662 | 3f78eef2 | Iustin Pop | def UpdateCache(cls, dev_path, owner, on_primary, iv_name): |
3663 | 3f78eef2 | Iustin Pop | """Updates the cache information for a given device.
|
3664 | 3f78eef2 | Iustin Pop |
|
3665 | 10c2650b | Iustin Pop | @type dev_path: str
|
3666 | 10c2650b | Iustin Pop | @param dev_path: the pathname of the device
|
3667 | 10c2650b | Iustin Pop | @type owner: str
|
3668 | 10c2650b | Iustin Pop | @param owner: the owner (instance name) of the device
|
3669 | 10c2650b | Iustin Pop | @type on_primary: bool
|
3670 | 10c2650b | Iustin Pop | @param on_primary: whether this is the primary
|
3671 | 10c2650b | Iustin Pop | node nor not
|
3672 | 10c2650b | Iustin Pop | @type iv_name: str
|
3673 | 10c2650b | Iustin Pop | @param iv_name: the instance-visible name of the
|
3674 | c41eea6e | Iustin Pop | device, as in objects.Disk.iv_name
|
3675 | 10c2650b | Iustin Pop |
|
3676 | 10c2650b | Iustin Pop | @rtype: None
|
3677 | 10c2650b | Iustin Pop |
|
3678 | 3f78eef2 | Iustin Pop | """
|
3679 | cf5a8306 | Iustin Pop | if dev_path is None: |
3680 | 18682bca | Iustin Pop | logging.error("DevCacheManager.UpdateCache got a None dev_path")
|
3681 | cf5a8306 | Iustin Pop | return
|
3682 | 3f78eef2 | Iustin Pop | fpath = cls._ConvertPath(dev_path) |
3683 | 3f78eef2 | Iustin Pop | if on_primary:
|
3684 | 3f78eef2 | Iustin Pop | state = "primary"
|
3685 | 3f78eef2 | Iustin Pop | else:
|
3686 | 3f78eef2 | Iustin Pop | state = "secondary"
|
3687 | 3f78eef2 | Iustin Pop | if iv_name is None: |
3688 | 3f78eef2 | Iustin Pop | iv_name = "not_visible"
|
3689 | 3f78eef2 | Iustin Pop | fdata = "%s %s %s\n" % (str(owner), state, iv_name) |
3690 | 3f78eef2 | Iustin Pop | try:
|
3691 | 3f78eef2 | Iustin Pop | utils.WriteFile(fpath, data=fdata) |
3692 | 3f78eef2 | Iustin Pop | except EnvironmentError, err: |
3693 | 29921401 | Iustin Pop | logging.exception("Can't update bdev cache for %s: %s", dev_path, err)
|
3694 | 3f78eef2 | Iustin Pop | |
3695 | 3f78eef2 | Iustin Pop | @classmethod
|
3696 | 3f78eef2 | Iustin Pop | def RemoveCache(cls, dev_path): |
3697 | 3f78eef2 | Iustin Pop | """Remove data for a dev_path.
|
3698 | 3f78eef2 | Iustin Pop |
|
3699 | 3865ca48 | Michael Hanselmann | This is just a wrapper over L{utils.io.RemoveFile} with a converted
|
3700 | 10c2650b | Iustin Pop | path name and logging.
|
3701 | 10c2650b | Iustin Pop |
|
3702 | 10c2650b | Iustin Pop | @type dev_path: str
|
3703 | 10c2650b | Iustin Pop | @param dev_path: the pathname of the device
|
3704 | 10c2650b | Iustin Pop |
|
3705 | 10c2650b | Iustin Pop | @rtype: None
|
3706 | 10c2650b | Iustin Pop |
|
3707 | 3f78eef2 | Iustin Pop | """
|
3708 | cf5a8306 | Iustin Pop | if dev_path is None: |
3709 | 18682bca | Iustin Pop | logging.error("DevCacheManager.RemoveCache got a None dev_path")
|
3710 | cf5a8306 | Iustin Pop | return
|
3711 | 3f78eef2 | Iustin Pop | fpath = cls._ConvertPath(dev_path) |
3712 | 3f78eef2 | Iustin Pop | try:
|
3713 | 3f78eef2 | Iustin Pop | utils.RemoveFile(fpath) |
3714 | 3f78eef2 | Iustin Pop | except EnvironmentError, err: |
3715 | 29921401 | Iustin Pop | logging.exception("Can't update bdev cache for %s: %s", dev_path, err) |