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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | a025e535 | Vitaly Kuznetsov | # Copyright (C) 2006, 2007, 2008, 2009, 2010 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 | 6c881c52 | Iustin Pop | # pylint: disable-msg=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 | a8083063 | Iustin Pop | |
64 | a8083063 | Iustin Pop | |
65 | 13998ef2 | Michael Hanselmann | _BOOT_ID_PATH = "/proc/sys/kernel/random/boot_id"
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66 | 714ea7ca | Iustin Pop | _ALLOWED_CLEAN_DIRS = frozenset([
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67 | 714ea7ca | Iustin Pop | constants.DATA_DIR, |
68 | 714ea7ca | Iustin Pop | constants.JOB_QUEUE_ARCHIVE_DIR, |
69 | 714ea7ca | Iustin Pop | constants.QUEUE_DIR, |
70 | f942a838 | Michael Hanselmann | constants.CRYPTO_KEYS_DIR, |
71 | 714ea7ca | Iustin Pop | ]) |
72 | f942a838 | Michael Hanselmann | _MAX_SSL_CERT_VALIDITY = 7 * 24 * 60 * 60 |
73 | f942a838 | Michael Hanselmann | _X509_KEY_FILE = "key"
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74 | f942a838 | Michael Hanselmann | _X509_CERT_FILE = "cert"
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75 | 1651d116 | Michael Hanselmann | _IES_STATUS_FILE = "status"
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76 | 1651d116 | Michael Hanselmann | _IES_PID_FILE = "pid"
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77 | 1651d116 | Michael Hanselmann | _IES_CA_FILE = "ca"
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78 | 13998ef2 | Michael Hanselmann | |
79 | 0b5303da | Iustin Pop | #: Valid LVS output line regex
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80 | 84d7e26b | Dmitry Chernyak | _LVSLINE_REGEX = re.compile("^ *([^|]+)\|([^|]+)\|([0-9.]+)\|([^|]{6})\|?$")
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81 | 0b5303da | Iustin Pop | |
82 | 13998ef2 | Michael Hanselmann | |
83 | 2cc6781a | Iustin Pop | class RPCFail(Exception): |
84 | 2cc6781a | Iustin Pop | """Class denoting RPC failure.
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85 | 2cc6781a | Iustin Pop |
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86 | 2cc6781a | Iustin Pop | Its argument is the error message.
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87 | 2cc6781a | Iustin Pop |
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88 | 2cc6781a | Iustin Pop | """
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89 | 2cc6781a | Iustin Pop | |
90 | 13998ef2 | Michael Hanselmann | |
91 | 2cc6781a | Iustin Pop | def _Fail(msg, *args, **kwargs): |
92 | 2cc6781a | Iustin Pop | """Log an error and the raise an RPCFail exception.
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93 | 2cc6781a | Iustin Pop |
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94 | 2cc6781a | Iustin Pop | This exception is then handled specially in the ganeti daemon and
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95 | 2cc6781a | Iustin Pop | turned into a 'failed' return type. As such, this function is a
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96 | 2cc6781a | Iustin Pop | useful shortcut for logging the error and returning it to the master
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97 | 2cc6781a | Iustin Pop | daemon.
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98 | 2cc6781a | Iustin Pop |
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99 | 2cc6781a | Iustin Pop | @type msg: string
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100 | 2cc6781a | Iustin Pop | @param msg: the text of the exception
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101 | 2cc6781a | Iustin Pop | @raise RPCFail
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102 | 2cc6781a | Iustin Pop |
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103 | 2cc6781a | Iustin Pop | """
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104 | 2cc6781a | Iustin Pop | if args:
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105 | 2cc6781a | Iustin Pop | msg = msg % args |
106 | afdc3985 | Iustin Pop | if "log" not in kwargs or kwargs["log"]: # if we should log this error |
107 | afdc3985 | Iustin Pop | if "exc" in kwargs and kwargs["exc"]: |
108 | afdc3985 | Iustin Pop | logging.exception(msg) |
109 | afdc3985 | Iustin Pop | else:
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110 | afdc3985 | Iustin Pop | logging.error(msg) |
111 | 2cc6781a | Iustin Pop | raise RPCFail(msg)
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112 | 2cc6781a | Iustin Pop | |
113 | 2cc6781a | Iustin Pop | |
114 | c657dcc9 | Michael Hanselmann | def _GetConfig(): |
115 | 93384844 | Iustin Pop | """Simple wrapper to return a SimpleStore.
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116 | 10c2650b | Iustin Pop |
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117 | 93384844 | Iustin Pop | @rtype: L{ssconf.SimpleStore}
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118 | 93384844 | Iustin Pop | @return: a SimpleStore instance
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119 | 10c2650b | Iustin Pop |
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120 | 10c2650b | Iustin Pop | """
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121 | 93384844 | Iustin Pop | return ssconf.SimpleStore()
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122 | c657dcc9 | Michael Hanselmann | |
123 | c657dcc9 | Michael Hanselmann | |
124 | 62c9ec92 | Iustin Pop | def _GetSshRunner(cluster_name): |
125 | 10c2650b | Iustin Pop | """Simple wrapper to return an SshRunner.
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126 | 10c2650b | Iustin Pop |
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127 | 10c2650b | Iustin Pop | @type cluster_name: str
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128 | 10c2650b | Iustin Pop | @param cluster_name: the cluster name, which is needed
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129 | 10c2650b | Iustin Pop | by the SshRunner constructor
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130 | 10c2650b | Iustin Pop | @rtype: L{ssh.SshRunner}
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131 | 10c2650b | Iustin Pop | @return: an SshRunner instance
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132 | 10c2650b | Iustin Pop |
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133 | 10c2650b | Iustin Pop | """
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134 | 62c9ec92 | Iustin Pop | return ssh.SshRunner(cluster_name)
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135 | c92b310a | Michael Hanselmann | |
136 | c92b310a | Michael Hanselmann | |
137 | 12bce260 | Michael Hanselmann | def _Decompress(data): |
138 | 12bce260 | Michael Hanselmann | """Unpacks data compressed by the RPC client.
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139 | 12bce260 | Michael Hanselmann |
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140 | 12bce260 | Michael Hanselmann | @type data: list or tuple
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141 | 12bce260 | Michael Hanselmann | @param data: Data sent by RPC client
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142 | 12bce260 | Michael Hanselmann | @rtype: str
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143 | 12bce260 | Michael Hanselmann | @return: Decompressed data
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144 | 12bce260 | Michael Hanselmann |
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145 | 12bce260 | Michael Hanselmann | """
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146 | 52e2f66e | Michael Hanselmann | assert isinstance(data, (list, tuple)) |
147 | 12bce260 | Michael Hanselmann | assert len(data) == 2 |
148 | 12bce260 | Michael Hanselmann | (encoding, content) = data |
149 | 12bce260 | Michael Hanselmann | if encoding == constants.RPC_ENCODING_NONE:
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150 | 12bce260 | Michael Hanselmann | return content
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151 | 12bce260 | Michael Hanselmann | elif encoding == constants.RPC_ENCODING_ZLIB_BASE64:
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152 | 12bce260 | Michael Hanselmann | return zlib.decompress(base64.b64decode(content))
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153 | 12bce260 | Michael Hanselmann | else:
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154 | 12bce260 | Michael Hanselmann | raise AssertionError("Unknown data encoding") |
155 | 12bce260 | Michael Hanselmann | |
156 | 12bce260 | Michael Hanselmann | |
157 | 3bc6be5c | Iustin Pop | def _CleanDirectory(path, exclude=None): |
158 | 76ab5558 | Michael Hanselmann | """Removes all regular files in a directory.
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159 | 76ab5558 | Michael Hanselmann |
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160 | 10c2650b | Iustin Pop | @type path: str
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161 | 10c2650b | Iustin Pop | @param path: the directory to clean
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162 | 76ab5558 | Michael Hanselmann | @type exclude: list
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163 | 10c2650b | Iustin Pop | @param exclude: list of files to be excluded, defaults
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164 | 10c2650b | Iustin Pop | to the empty list
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165 | 76ab5558 | Michael Hanselmann |
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166 | 76ab5558 | Michael Hanselmann | """
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167 | 714ea7ca | Iustin Pop | if path not in _ALLOWED_CLEAN_DIRS: |
168 | 714ea7ca | Iustin Pop | _Fail("Path passed to _CleanDirectory not in allowed clean targets: '%s'",
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169 | 714ea7ca | Iustin Pop | path) |
170 | 714ea7ca | Iustin Pop | |
171 | 3956cee1 | Michael Hanselmann | if not os.path.isdir(path): |
172 | 3956cee1 | Michael Hanselmann | return
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173 | 3bc6be5c | Iustin Pop | if exclude is None: |
174 | 3bc6be5c | Iustin Pop | exclude = [] |
175 | 3bc6be5c | Iustin Pop | else:
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176 | 3bc6be5c | Iustin Pop | # Normalize excluded paths
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177 | 3bc6be5c | Iustin Pop | exclude = [os.path.normpath(i) for i in exclude] |
178 | 76ab5558 | Michael Hanselmann | |
179 | 3956cee1 | Michael Hanselmann | for rel_name in utils.ListVisibleFiles(path): |
180 | c4feafe8 | Iustin Pop | full_name = utils.PathJoin(path, rel_name) |
181 | 76ab5558 | Michael Hanselmann | if full_name in exclude: |
182 | 76ab5558 | Michael Hanselmann | continue
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183 | 3956cee1 | Michael Hanselmann | if os.path.isfile(full_name) and not os.path.islink(full_name): |
184 | 3956cee1 | Michael Hanselmann | utils.RemoveFile(full_name) |
185 | 3956cee1 | Michael Hanselmann | |
186 | 3956cee1 | Michael Hanselmann | |
187 | 360b0dc2 | Iustin Pop | def _BuildUploadFileList(): |
188 | 360b0dc2 | Iustin Pop | """Build the list of allowed upload files.
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189 | 360b0dc2 | Iustin Pop |
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190 | 360b0dc2 | Iustin Pop | This is abstracted so that it's built only once at module import time.
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191 | 360b0dc2 | Iustin Pop |
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192 | 360b0dc2 | Iustin Pop | """
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193 | b397a7d2 | Iustin Pop | allowed_files = set([
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194 | b397a7d2 | Iustin Pop | constants.CLUSTER_CONF_FILE, |
195 | b397a7d2 | Iustin Pop | constants.ETC_HOSTS, |
196 | b397a7d2 | Iustin Pop | constants.SSH_KNOWN_HOSTS_FILE, |
197 | b397a7d2 | Iustin Pop | constants.VNC_PASSWORD_FILE, |
198 | b397a7d2 | Iustin Pop | constants.RAPI_CERT_FILE, |
199 | b397a7d2 | Iustin Pop | constants.RAPI_USERS_FILE, |
200 | 6b7d5878 | Michael Hanselmann | constants.CONFD_HMAC_KEY, |
201 | ff89a747 | Michael Hanselmann | constants.CLUSTER_DOMAIN_SECRET_FILE, |
202 | b397a7d2 | Iustin Pop | ]) |
203 | b397a7d2 | Iustin Pop | |
204 | b397a7d2 | Iustin Pop | for hv_name in constants.HYPER_TYPES: |
205 | e5a45a16 | Iustin Pop | hv_class = hypervisor.GetHypervisorClass(hv_name) |
206 | b397a7d2 | Iustin Pop | allowed_files.update(hv_class.GetAncillaryFiles()) |
207 | b397a7d2 | Iustin Pop | |
208 | b397a7d2 | Iustin Pop | return frozenset(allowed_files) |
209 | 360b0dc2 | Iustin Pop | |
210 | 360b0dc2 | Iustin Pop | |
211 | 360b0dc2 | Iustin Pop | _ALLOWED_UPLOAD_FILES = _BuildUploadFileList() |
212 | 360b0dc2 | Iustin Pop | |
213 | 360b0dc2 | Iustin Pop | |
214 | 1bc59f76 | Michael Hanselmann | def JobQueuePurge(): |
215 | 10c2650b | Iustin Pop | """Removes job queue files and archived jobs.
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216 | 10c2650b | Iustin Pop |
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217 | c8457ce7 | Iustin Pop | @rtype: tuple
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218 | c8457ce7 | Iustin Pop | @return: True, None
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219 | 24fc781f | Michael Hanselmann |
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220 | 24fc781f | Michael Hanselmann | """
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221 | 1bc59f76 | Michael Hanselmann | _CleanDirectory(constants.QUEUE_DIR, exclude=[constants.JOB_QUEUE_LOCK_FILE]) |
222 | 24fc781f | Michael Hanselmann | _CleanDirectory(constants.JOB_QUEUE_ARCHIVE_DIR) |
223 | 24fc781f | Michael Hanselmann | |
224 | 24fc781f | Michael Hanselmann | |
225 | bd1e4562 | Iustin Pop | def GetMasterInfo(): |
226 | bd1e4562 | Iustin Pop | """Returns master information.
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227 | bd1e4562 | Iustin Pop |
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228 | bd1e4562 | Iustin Pop | This is an utility function to compute master information, either
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229 | bd1e4562 | Iustin Pop | for consumption here or from the node daemon.
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230 | bd1e4562 | Iustin Pop |
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231 | bd1e4562 | Iustin Pop | @rtype: tuple
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232 | d8e0caa6 | Manuel Franceschini | @return: master_netdev, master_ip, master_name, primary_ip_family
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233 | 2a52a064 | Iustin Pop | @raise RPCFail: in case of errors
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234 | b1b6ea87 | Iustin Pop |
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235 | b1b6ea87 | Iustin Pop | """
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236 | b1b6ea87 | Iustin Pop | try:
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237 | c657dcc9 | Michael Hanselmann | cfg = _GetConfig() |
238 | c657dcc9 | Michael Hanselmann | master_netdev = cfg.GetMasterNetdev() |
239 | c657dcc9 | Michael Hanselmann | master_ip = cfg.GetMasterIP() |
240 | c657dcc9 | Michael Hanselmann | master_node = cfg.GetMasterNode() |
241 | d8e0caa6 | Manuel Franceschini | primary_ip_family = cfg.GetPrimaryIPFamily() |
242 | b1b6ea87 | Iustin Pop | except errors.ConfigurationError, err:
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243 | 29921401 | Iustin Pop | _Fail("Cluster configuration incomplete: %s", err, exc=True) |
244 | d8e0caa6 | Manuel Franceschini | return (master_netdev, master_ip, master_node, primary_ip_family)
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245 | b1b6ea87 | Iustin Pop | |
246 | b1b6ea87 | Iustin Pop | |
247 | 3583908a | Guido Trotter | def StartMaster(start_daemons, no_voting): |
248 | a8083063 | Iustin Pop | """Activate local node as master node.
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249 | a8083063 | Iustin Pop |
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250 | 91492e57 | Iustin Pop | The function will either try activate the IP address of the master
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251 | 91492e57 | Iustin Pop | (unless someone else has it) or also start the master daemons, based
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252 | 91492e57 | Iustin Pop | on the start_daemons parameter.
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253 | 10c2650b | Iustin Pop |
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254 | 10c2650b | Iustin Pop | @type start_daemons: boolean
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255 | 91492e57 | Iustin Pop | @param start_daemons: whether to start the master daemons
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256 | 91492e57 | Iustin Pop | (ganeti-masterd and ganeti-rapi), or (if false) activate the
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257 | 91492e57 | Iustin Pop | master ip
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258 | 3583908a | Guido Trotter | @type no_voting: boolean
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259 | 3583908a | Guido Trotter | @param no_voting: whether to start ganeti-masterd without a node vote
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260 | 3583908a | Guido Trotter | (if start_daemons is True), but still non-interactively
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261 | 10c2650b | Iustin Pop | @rtype: None
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262 | a8083063 | Iustin Pop |
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263 | a8083063 | Iustin Pop | """
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264 | 2a52a064 | Iustin Pop | # GetMasterInfo will raise an exception if not able to return data
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265 | d8e0caa6 | Manuel Franceschini | master_netdev, master_ip, _, family = GetMasterInfo() |
266 | a8083063 | Iustin Pop | |
267 | 396b5733 | Iustin Pop | err_msgs = [] |
268 | 91492e57 | Iustin Pop | # either start the master and rapi daemons
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269 | b1b6ea87 | Iustin Pop | if start_daemons:
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270 | 3583908a | Guido Trotter | if no_voting:
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271 | f154a7a3 | Michael Hanselmann | masterd_args = "--no-voting --yes-do-it"
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272 | f154a7a3 | Michael Hanselmann | else:
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273 | f154a7a3 | Michael Hanselmann | masterd_args = ""
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274 | f154a7a3 | Michael Hanselmann | |
275 | f154a7a3 | Michael Hanselmann | env = { |
276 | f154a7a3 | Michael Hanselmann | "EXTRA_MASTERD_ARGS": masterd_args,
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277 | f154a7a3 | Michael Hanselmann | } |
278 | f154a7a3 | Michael Hanselmann | |
279 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "start-master"], env=env)
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280 | f154a7a3 | Michael Hanselmann | if result.failed:
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281 | f154a7a3 | Michael Hanselmann | msg = "Can't start Ganeti master: %s" % result.output
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282 | f154a7a3 | Michael Hanselmann | logging.error(msg) |
283 | f154a7a3 | Michael Hanselmann | err_msgs.append(msg) |
284 | 91492e57 | Iustin Pop | # or activate the IP
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285 | 91492e57 | Iustin Pop | else:
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286 | 91492e57 | Iustin Pop | if netutils.TcpPing(master_ip, constants.DEFAULT_NODED_PORT):
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287 | 8b312c1d | Manuel Franceschini | if netutils.IPAddress.Own(master_ip):
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288 | 91492e57 | Iustin Pop | # we already have the ip:
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289 | 91492e57 | Iustin Pop | logging.debug("Master IP already configured, doing nothing")
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290 | 91492e57 | Iustin Pop | else:
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291 | 91492e57 | Iustin Pop | msg = "Someone else has the master ip, not activating"
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292 | 91492e57 | Iustin Pop | logging.error(msg) |
293 | 91492e57 | Iustin Pop | err_msgs.append(msg) |
294 | 91492e57 | Iustin Pop | else:
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295 | d8e0caa6 | Manuel Franceschini | ipcls = netutils.IP4Address |
296 | d8e0caa6 | Manuel Franceschini | if family == netutils.IP6Address.family:
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297 | d8e0caa6 | Manuel Franceschini | ipcls = netutils.IP6Address |
298 | e7323b5e | Manuel Franceschini | |
299 | e7323b5e | Manuel Franceschini | result = utils.RunCmd(["ip", "address", "add", |
300 | d8e0caa6 | Manuel Franceschini | "%s/%d" % (master_ip, ipcls.iplen),
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301 | 91492e57 | Iustin Pop | "dev", master_netdev, "label", |
302 | 91492e57 | Iustin Pop | "%s:0" % master_netdev])
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303 | 91492e57 | Iustin Pop | if result.failed:
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304 | 91492e57 | Iustin Pop | msg = "Can't activate master IP: %s" % result.output
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305 | 91492e57 | Iustin Pop | logging.error(msg) |
306 | 91492e57 | Iustin Pop | err_msgs.append(msg) |
307 | 91492e57 | Iustin Pop | |
308 | e7323b5e | Manuel Franceschini | # we ignore the exit code of the following cmds
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309 | d8e0caa6 | Manuel Franceschini | if ipcls == netutils.IP4Address:
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310 | e7323b5e | Manuel Franceschini | utils.RunCmd(["arping", "-q", "-U", "-c 3", "-I", master_netdev, "-s", |
311 | e7323b5e | Manuel Franceschini | master_ip, master_ip]) |
312 | d8e0caa6 | Manuel Franceschini | elif ipcls == netutils.IP6Address:
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313 | 2dc1237c | Manuel Franceschini | try:
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314 | 2dc1237c | Manuel Franceschini | utils.RunCmd(["ndisc6", "-q", "-r 3", master_ip, master_netdev]) |
315 | 2dc1237c | Manuel Franceschini | except errors.OpExecError:
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316 | 2dc1237c | Manuel Franceschini | # TODO: Better error reporting
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317 | 2dc1237c | Manuel Franceschini | logging.warning("Can't execute ndisc6, please install if missing")
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318 | b726aff0 | Iustin Pop | |
319 | 396b5733 | Iustin Pop | if err_msgs:
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320 | 396b5733 | Iustin Pop | _Fail("; ".join(err_msgs))
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321 | afdc3985 | Iustin Pop | |
322 | a8083063 | Iustin Pop | |
323 | 1c65840b | Iustin Pop | def StopMaster(stop_daemons): |
324 | a8083063 | Iustin Pop | """Deactivate this node as master.
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325 | a8083063 | Iustin Pop |
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326 | 1c65840b | Iustin Pop | The function will always try to deactivate the IP address of the
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327 | 10c2650b | Iustin Pop | master. It will also stop the master daemons depending on the
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328 | 10c2650b | Iustin Pop | stop_daemons parameter.
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329 | 10c2650b | Iustin Pop |
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330 | 10c2650b | Iustin Pop | @type stop_daemons: boolean
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331 | 10c2650b | Iustin Pop | @param stop_daemons: whether to also stop the master daemons
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332 | 10c2650b | Iustin Pop | (ganeti-masterd and ganeti-rapi)
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333 | 10c2650b | Iustin Pop | @rtype: None
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334 | a8083063 | Iustin Pop |
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335 | a8083063 | Iustin Pop | """
|
336 | 6c00d19a | Iustin Pop | # TODO: log and report back to the caller the error failures; we
|
337 | 6c00d19a | Iustin Pop | # need to decide in which case we fail the RPC for this
|
338 | 2a52a064 | Iustin Pop | |
339 | 2a52a064 | Iustin Pop | # GetMasterInfo will raise an exception if not able to return data
|
340 | d8e0caa6 | Manuel Franceschini | master_netdev, master_ip, _, family = GetMasterInfo() |
341 | a8083063 | Iustin Pop | |
342 | d8e0caa6 | Manuel Franceschini | ipcls = netutils.IP4Address |
343 | d8e0caa6 | Manuel Franceschini | if family == netutils.IP6Address.family:
|
344 | d8e0caa6 | Manuel Franceschini | ipcls = netutils.IP6Address |
345 | e7323b5e | Manuel Franceschini | |
346 | e7323b5e | Manuel Franceschini | result = utils.RunCmd(["ip", "address", "del", |
347 | d8e0caa6 | Manuel Franceschini | "%s/%d" % (master_ip, ipcls.iplen),
|
348 | b1b6ea87 | Iustin Pop | "dev", master_netdev])
|
349 | a8083063 | Iustin Pop | if result.failed:
|
350 | 3b9e6a30 | Iustin Pop | logging.error("Can't remove the master IP, error: %s", result.output)
|
351 | b1b6ea87 | Iustin Pop | # but otherwise ignore the failure
|
352 | b1b6ea87 | Iustin Pop | |
353 | b1b6ea87 | Iustin Pop | if stop_daemons:
|
354 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "stop-master"])
|
355 | f154a7a3 | Michael Hanselmann | if result.failed:
|
356 | f154a7a3 | Michael Hanselmann | logging.error("Could not stop Ganeti master, command %s had exitcode %s"
|
357 | f154a7a3 | Michael Hanselmann | " and error %s",
|
358 | f154a7a3 | Michael Hanselmann | result.cmd, result.exit_code, result.output) |
359 | a8083063 | Iustin Pop | |
360 | a8083063 | Iustin Pop | |
361 | 19ddc57a | René Nussbaumer | def EtcHostsModify(mode, host, ip): |
362 | 19ddc57a | René Nussbaumer | """Modify a host entry in /etc/hosts.
|
363 | 19ddc57a | René Nussbaumer |
|
364 | 19ddc57a | René Nussbaumer | @param mode: The mode to operate. Either add or remove entry
|
365 | 19ddc57a | René Nussbaumer | @param host: The host to operate on
|
366 | 19ddc57a | René Nussbaumer | @param ip: The ip associated with the entry
|
367 | 19ddc57a | René Nussbaumer |
|
368 | 19ddc57a | René Nussbaumer | """
|
369 | 19ddc57a | René Nussbaumer | if mode == constants.ETC_HOSTS_ADD:
|
370 | 19ddc57a | René Nussbaumer | if not ip: |
371 | 19ddc57a | René Nussbaumer | RPCFail("Mode 'add' needs 'ip' parameter, but parameter not"
|
372 | 19ddc57a | René Nussbaumer | " present")
|
373 | 19ddc57a | René Nussbaumer | utils.AddHostToEtcHosts(host, ip) |
374 | 19ddc57a | René Nussbaumer | elif mode == constants.ETC_HOSTS_REMOVE:
|
375 | 19ddc57a | René Nussbaumer | if ip:
|
376 | 19ddc57a | René Nussbaumer | RPCFail("Mode 'remove' does not allow 'ip' parameter, but"
|
377 | 19ddc57a | René Nussbaumer | " parameter is present")
|
378 | 19ddc57a | René Nussbaumer | utils.RemoveHostFromEtcHosts(host) |
379 | 19ddc57a | René Nussbaumer | else:
|
380 | 19ddc57a | René Nussbaumer | RPCFail("Mode not supported")
|
381 | 19ddc57a | René Nussbaumer | |
382 | 19ddc57a | René Nussbaumer | |
383 | b989b9d9 | Ken Wehr | def LeaveCluster(modify_ssh_setup): |
384 | 10c2650b | Iustin Pop | """Cleans up and remove the current node.
|
385 | 10c2650b | Iustin Pop |
|
386 | 10c2650b | Iustin Pop | This function cleans up and prepares the current node to be removed
|
387 | 10c2650b | Iustin Pop | from the cluster.
|
388 | 10c2650b | Iustin Pop |
|
389 | 10c2650b | Iustin Pop | If processing is successful, then it raises an
|
390 | c41eea6e | Iustin Pop | L{errors.QuitGanetiException} which is used as a special case to
|
391 | 10c2650b | Iustin Pop | shutdown the node daemon.
|
392 | a8083063 | Iustin Pop |
|
393 | b989b9d9 | Ken Wehr | @param modify_ssh_setup: boolean
|
394 | b989b9d9 | Ken Wehr |
|
395 | a8083063 | Iustin Pop | """
|
396 | f78346f5 | Michael Hanselmann | _CleanDirectory(constants.DATA_DIR) |
397 | f942a838 | Michael Hanselmann | _CleanDirectory(constants.CRYPTO_KEYS_DIR) |
398 | 1bc59f76 | Michael Hanselmann | JobQueuePurge() |
399 | f78346f5 | Michael Hanselmann | |
400 | b989b9d9 | Ken Wehr | if modify_ssh_setup:
|
401 | b989b9d9 | Ken Wehr | try:
|
402 | b989b9d9 | Ken Wehr | priv_key, pub_key, auth_keys = ssh.GetUserFiles(constants.GANETI_RUNAS) |
403 | 7900ed01 | Iustin Pop | |
404 | b989b9d9 | Ken Wehr | utils.RemoveAuthorizedKey(auth_keys, utils.ReadFile(pub_key)) |
405 | a8083063 | Iustin Pop | |
406 | b989b9d9 | Ken Wehr | utils.RemoveFile(priv_key) |
407 | b989b9d9 | Ken Wehr | utils.RemoveFile(pub_key) |
408 | b989b9d9 | Ken Wehr | except errors.OpExecError:
|
409 | b989b9d9 | Ken Wehr | logging.exception("Error while processing ssh files")
|
410 | a8083063 | Iustin Pop | |
411 | ed008420 | Guido Trotter | try:
|
412 | 6b7d5878 | Michael Hanselmann | utils.RemoveFile(constants.CONFD_HMAC_KEY) |
413 | ed008420 | Guido Trotter | utils.RemoveFile(constants.RAPI_CERT_FILE) |
414 | 168c1de2 | Michael Hanselmann | utils.RemoveFile(constants.NODED_CERT_FILE) |
415 | 7260cfbe | Iustin Pop | except: # pylint: disable-msg=W0702 |
416 | ed008420 | Guido Trotter | logging.exception("Error while removing cluster secrets")
|
417 | ed008420 | Guido Trotter | |
418 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "stop", constants.CONFD])
|
419 | f154a7a3 | Michael Hanselmann | if result.failed:
|
420 | f154a7a3 | Michael Hanselmann | logging.error("Command %s failed with exitcode %s and error %s",
|
421 | f154a7a3 | Michael Hanselmann | result.cmd, result.exit_code, result.output) |
422 | ed008420 | Guido Trotter | |
423 | 0623d351 | Iustin Pop | # Raise a custom exception (handled in ganeti-noded)
|
424 | 0623d351 | Iustin Pop | raise errors.QuitGanetiException(True, 'Shutdown scheduled') |
425 | 6d8b6238 | Guido Trotter | |
426 | a8083063 | Iustin Pop | |
427 | e69d05fd | Iustin Pop | def GetNodeInfo(vgname, hypervisor_type): |
428 | 5bbd3f7f | Michael Hanselmann | """Gives back a hash with different information about the node.
|
429 | a8083063 | Iustin Pop |
|
430 | e69d05fd | Iustin Pop | @type vgname: C{string}
|
431 | e69d05fd | Iustin Pop | @param vgname: the name of the volume group to ask for disk space information
|
432 | e69d05fd | Iustin Pop | @type hypervisor_type: C{str}
|
433 | e69d05fd | Iustin Pop | @param hypervisor_type: the name of the hypervisor to ask for
|
434 | e69d05fd | Iustin Pop | memory information
|
435 | e69d05fd | Iustin Pop | @rtype: C{dict}
|
436 | e69d05fd | Iustin Pop | @return: dictionary with the following keys:
|
437 | e69d05fd | Iustin Pop | - vg_size is the size of the configured volume group in MiB
|
438 | e69d05fd | Iustin Pop | - vg_free is the free size of the volume group in MiB
|
439 | e69d05fd | Iustin Pop | - memory_dom0 is the memory allocated for domain0 in MiB
|
440 | e69d05fd | Iustin Pop | - memory_free is the currently available (free) ram in MiB
|
441 | e69d05fd | Iustin Pop | - memory_total is the total number of ram in MiB
|
442 | a8083063 | Iustin Pop |
|
443 | 098c0958 | Michael Hanselmann | """
|
444 | a8083063 | Iustin Pop | outputarray = {} |
445 | 673cd9c4 | René Nussbaumer | |
446 | cb6a0296 | Iustin Pop | if vgname is not None: |
447 | cb6a0296 | Iustin Pop | vginfo = bdev.LogicalVolume.GetVGInfo([vgname]) |
448 | cb6a0296 | Iustin Pop | vg_free = vg_size = None
|
449 | cb6a0296 | Iustin Pop | if vginfo:
|
450 | cb6a0296 | Iustin Pop | vg_free = int(round(vginfo[0][0], 0)) |
451 | cb6a0296 | Iustin Pop | vg_size = int(round(vginfo[0][1], 0)) |
452 | cb6a0296 | Iustin Pop | outputarray['vg_size'] = vg_size
|
453 | cb6a0296 | Iustin Pop | outputarray['vg_free'] = vg_free
|
454 | cb6a0296 | Iustin Pop | |
455 | cb6a0296 | Iustin Pop | if hypervisor_type is not None: |
456 | cb6a0296 | Iustin Pop | hyper = hypervisor.GetHypervisor(hypervisor_type) |
457 | cb6a0296 | Iustin Pop | hyp_info = hyper.GetNodeInfo() |
458 | cb6a0296 | Iustin Pop | if hyp_info is not None: |
459 | cb6a0296 | Iustin Pop | outputarray.update(hyp_info) |
460 | a8083063 | Iustin Pop | |
461 | 13998ef2 | Michael Hanselmann | outputarray["bootid"] = utils.ReadFile(_BOOT_ID_PATH, size=128).rstrip("\n") |
462 | 3ef10550 | Michael Hanselmann | |
463 | c26a6bd2 | Iustin Pop | return outputarray
|
464 | a8083063 | Iustin Pop | |
465 | a8083063 | Iustin Pop | |
466 | 62c9ec92 | Iustin Pop | def VerifyNode(what, cluster_name): |
467 | a8083063 | Iustin Pop | """Verify the status of the local node.
|
468 | a8083063 | Iustin Pop |
|
469 | e69d05fd | Iustin Pop | Based on the input L{what} parameter, various checks are done on the
|
470 | e69d05fd | Iustin Pop | local node.
|
471 | e69d05fd | Iustin Pop |
|
472 | e69d05fd | Iustin Pop | If the I{filelist} key is present, this list of
|
473 | e69d05fd | Iustin Pop | files is checksummed and the file/checksum pairs are returned.
|
474 | e69d05fd | Iustin Pop |
|
475 | e69d05fd | Iustin Pop | If the I{nodelist} key is present, we check that we have
|
476 | e69d05fd | Iustin Pop | connectivity via ssh with the target nodes (and check the hostname
|
477 | e69d05fd | Iustin Pop | report).
|
478 | a8083063 | Iustin Pop |
|
479 | e69d05fd | Iustin Pop | If the I{node-net-test} key is present, we check that we have
|
480 | e69d05fd | Iustin Pop | connectivity to the given nodes via both primary IP and, if
|
481 | e69d05fd | Iustin Pop | applicable, secondary IPs.
|
482 | e69d05fd | Iustin Pop |
|
483 | e69d05fd | Iustin Pop | @type what: C{dict}
|
484 | e69d05fd | Iustin Pop | @param what: a dictionary of things to check:
|
485 | e69d05fd | Iustin Pop | - filelist: list of files for which to compute checksums
|
486 | e69d05fd | Iustin Pop | - nodelist: list of nodes we should check ssh communication with
|
487 | e69d05fd | Iustin Pop | - node-net-test: list of nodes we should check node daemon port
|
488 | e69d05fd | Iustin Pop | connectivity with
|
489 | e69d05fd | Iustin Pop | - hypervisor: list with hypervisors to run the verify for
|
490 | 10c2650b | Iustin Pop | @rtype: dict
|
491 | 10c2650b | Iustin Pop | @return: a dictionary with the same keys as the input dict, and
|
492 | 10c2650b | Iustin Pop | values representing the result of the checks
|
493 | a8083063 | Iustin Pop |
|
494 | a8083063 | Iustin Pop | """
|
495 | a8083063 | Iustin Pop | result = {} |
496 | b705c7a6 | Manuel Franceschini | my_name = netutils.Hostname.GetSysName() |
497 | a744b676 | Manuel Franceschini | port = netutils.GetDaemonPort(constants.NODED) |
498 | 8964ee14 | Iustin Pop | vm_capable = my_name not in what.get(constants.NV_VMNODES, []) |
499 | a8083063 | Iustin Pop | |
500 | 8964ee14 | Iustin Pop | if constants.NV_HYPERVISOR in what and vm_capable: |
501 | 25361b9a | Iustin Pop | result[constants.NV_HYPERVISOR] = tmp = {} |
502 | 25361b9a | Iustin Pop | for hv_name in what[constants.NV_HYPERVISOR]: |
503 | 0cf5e7f5 | Iustin Pop | try:
|
504 | 0cf5e7f5 | Iustin Pop | val = hypervisor.GetHypervisor(hv_name).Verify() |
505 | 0cf5e7f5 | Iustin Pop | except errors.HypervisorError, err:
|
506 | 0cf5e7f5 | Iustin Pop | val = "Error while checking hypervisor: %s" % str(err) |
507 | 0cf5e7f5 | Iustin Pop | tmp[hv_name] = val |
508 | 25361b9a | Iustin Pop | |
509 | 25361b9a | Iustin Pop | if constants.NV_FILELIST in what: |
510 | 25361b9a | Iustin Pop | result[constants.NV_FILELIST] = utils.FingerprintFiles( |
511 | 25361b9a | Iustin Pop | what[constants.NV_FILELIST]) |
512 | 25361b9a | Iustin Pop | |
513 | 25361b9a | Iustin Pop | if constants.NV_NODELIST in what: |
514 | 25361b9a | Iustin Pop | result[constants.NV_NODELIST] = tmp = {} |
515 | 25361b9a | Iustin Pop | random.shuffle(what[constants.NV_NODELIST]) |
516 | 25361b9a | Iustin Pop | for node in what[constants.NV_NODELIST]: |
517 | 62c9ec92 | Iustin Pop | success, message = _GetSshRunner(cluster_name).VerifyNodeHostname(node) |
518 | a8083063 | Iustin Pop | if not success: |
519 | 25361b9a | Iustin Pop | tmp[node] = message |
520 | 25361b9a | Iustin Pop | |
521 | 25361b9a | Iustin Pop | if constants.NV_NODENETTEST in what: |
522 | 25361b9a | Iustin Pop | result[constants.NV_NODENETTEST] = tmp = {} |
523 | 9d4bfc96 | Iustin Pop | my_pip = my_sip = None
|
524 | 25361b9a | Iustin Pop | for name, pip, sip in what[constants.NV_NODENETTEST]: |
525 | 9d4bfc96 | Iustin Pop | if name == my_name:
|
526 | 9d4bfc96 | Iustin Pop | my_pip = pip |
527 | 9d4bfc96 | Iustin Pop | my_sip = sip |
528 | 9d4bfc96 | Iustin Pop | break
|
529 | 9d4bfc96 | Iustin Pop | if not my_pip: |
530 | 25361b9a | Iustin Pop | tmp[my_name] = ("Can't find my own primary/secondary IP"
|
531 | 25361b9a | Iustin Pop | " in the node list")
|
532 | 9d4bfc96 | Iustin Pop | else:
|
533 | 25361b9a | Iustin Pop | for name, pip, sip in what[constants.NV_NODENETTEST]: |
534 | 9d4bfc96 | Iustin Pop | fail = [] |
535 | a744b676 | Manuel Franceschini | if not netutils.TcpPing(pip, port, source=my_pip): |
536 | 9d4bfc96 | Iustin Pop | fail.append("primary")
|
537 | 9d4bfc96 | Iustin Pop | if sip != pip:
|
538 | a744b676 | Manuel Franceschini | if not netutils.TcpPing(sip, port, source=my_sip): |
539 | 9d4bfc96 | Iustin Pop | fail.append("secondary")
|
540 | 9d4bfc96 | Iustin Pop | if fail:
|
541 | 25361b9a | Iustin Pop | tmp[name] = ("failure using the %s interface(s)" %
|
542 | 25361b9a | Iustin Pop | " and ".join(fail))
|
543 | 25361b9a | Iustin Pop | |
544 | a3a5f850 | Iustin Pop | if constants.NV_MASTERIP in what: |
545 | a3a5f850 | Iustin Pop | # FIXME: add checks on incoming data structures (here and in the
|
546 | a3a5f850 | Iustin Pop | # rest of the function)
|
547 | a3a5f850 | Iustin Pop | master_name, master_ip = what[constants.NV_MASTERIP] |
548 | a3a5f850 | Iustin Pop | if master_name == my_name:
|
549 | 9769bb78 | Manuel Franceschini | source = constants.IP4_ADDRESS_LOCALHOST |
550 | a3a5f850 | Iustin Pop | else:
|
551 | a3a5f850 | Iustin Pop | source = None
|
552 | a744b676 | Manuel Franceschini | result[constants.NV_MASTERIP] = netutils.TcpPing(master_ip, port, |
553 | a3a5f850 | Iustin Pop | source=source) |
554 | a3a5f850 | Iustin Pop | |
555 | 8964ee14 | Iustin Pop | if constants.NV_LVLIST in what and vm_capable: |
556 | ed904904 | Iustin Pop | try:
|
557 | 84d7e26b | Dmitry Chernyak | val = GetVolumeList(utils.ListVolumeGroups().keys()) |
558 | ed904904 | Iustin Pop | except RPCFail, err:
|
559 | ed904904 | Iustin Pop | val = str(err)
|
560 | ed904904 | Iustin Pop | result[constants.NV_LVLIST] = val |
561 | 25361b9a | Iustin Pop | |
562 | 8964ee14 | Iustin Pop | if constants.NV_INSTANCELIST in what and vm_capable: |
563 | 0cf5e7f5 | Iustin Pop | # GetInstanceList can fail
|
564 | 0cf5e7f5 | Iustin Pop | try:
|
565 | 0cf5e7f5 | Iustin Pop | val = GetInstanceList(what[constants.NV_INSTANCELIST]) |
566 | 0cf5e7f5 | Iustin Pop | except RPCFail, err:
|
567 | 0cf5e7f5 | Iustin Pop | val = str(err)
|
568 | 0cf5e7f5 | Iustin Pop | result[constants.NV_INSTANCELIST] = val |
569 | 25361b9a | Iustin Pop | |
570 | 8964ee14 | Iustin Pop | if constants.NV_VGLIST in what and vm_capable: |
571 | e480923b | Iustin Pop | result[constants.NV_VGLIST] = utils.ListVolumeGroups() |
572 | 25361b9a | Iustin Pop | |
573 | 8964ee14 | Iustin Pop | if constants.NV_PVLIST in what and vm_capable: |
574 | d091393e | Iustin Pop | result[constants.NV_PVLIST] = \ |
575 | d091393e | Iustin Pop | bdev.LogicalVolume.GetPVInfo(what[constants.NV_PVLIST], |
576 | d091393e | Iustin Pop | filter_allocatable=False)
|
577 | d091393e | Iustin Pop | |
578 | 25361b9a | Iustin Pop | if constants.NV_VERSION in what: |
579 | e9ce0a64 | Iustin Pop | result[constants.NV_VERSION] = (constants.PROTOCOL_VERSION, |
580 | e9ce0a64 | Iustin Pop | constants.RELEASE_VERSION) |
581 | 25361b9a | Iustin Pop | |
582 | 8964ee14 | Iustin Pop | if constants.NV_HVINFO in what and vm_capable: |
583 | 25361b9a | Iustin Pop | hyper = hypervisor.GetHypervisor(what[constants.NV_HVINFO]) |
584 | 25361b9a | Iustin Pop | result[constants.NV_HVINFO] = hyper.GetNodeInfo() |
585 | 9d4bfc96 | Iustin Pop | |
586 | 8964ee14 | Iustin Pop | if constants.NV_DRBDLIST in what and vm_capable: |
587 | 6d2e83d5 | Iustin Pop | try:
|
588 | 6d2e83d5 | Iustin Pop | used_minors = bdev.DRBD8.GetUsedDevs().keys() |
589 | f6eaed12 | Iustin Pop | except errors.BlockDeviceError, err:
|
590 | 6d2e83d5 | Iustin Pop | logging.warning("Can't get used minors list", exc_info=True) |
591 | f6eaed12 | Iustin Pop | used_minors = str(err)
|
592 | 6d2e83d5 | Iustin Pop | result[constants.NV_DRBDLIST] = used_minors |
593 | 6d2e83d5 | Iustin Pop | |
594 | 8964ee14 | Iustin Pop | if constants.NV_DRBDHELPER in what and vm_capable: |
595 | 7ef40fbe | Luca Bigliardi | status = True
|
596 | 7ef40fbe | Luca Bigliardi | try:
|
597 | 7ef40fbe | Luca Bigliardi | payload = bdev.BaseDRBD.GetUsermodeHelper() |
598 | 7ef40fbe | Luca Bigliardi | except errors.BlockDeviceError, err:
|
599 | 7ef40fbe | Luca Bigliardi | logging.error("Can't get DRBD usermode helper: %s", str(err)) |
600 | 7ef40fbe | Luca Bigliardi | status = False
|
601 | 7ef40fbe | Luca Bigliardi | payload = str(err)
|
602 | 7ef40fbe | Luca Bigliardi | result[constants.NV_DRBDHELPER] = (status, payload) |
603 | 7ef40fbe | Luca Bigliardi | |
604 | 7c0aa8e9 | Iustin Pop | if constants.NV_NODESETUP in what: |
605 | 7c0aa8e9 | Iustin Pop | result[constants.NV_NODESETUP] = tmpr = [] |
606 | 7c0aa8e9 | Iustin Pop | if not os.path.isdir("/sys/block") or not os.path.isdir("/sys/class/net"): |
607 | 7c0aa8e9 | Iustin Pop | tmpr.append("The sysfs filesytem doesn't seem to be mounted"
|
608 | 7c0aa8e9 | Iustin Pop | " under /sys, missing required directories /sys/block"
|
609 | 7c0aa8e9 | Iustin Pop | " and /sys/class/net")
|
610 | 7c0aa8e9 | Iustin Pop | if (not os.path.isdir("/proc/sys") or |
611 | 7c0aa8e9 | Iustin Pop | not os.path.isfile("/proc/sysrq-trigger")): |
612 | 7c0aa8e9 | Iustin Pop | tmpr.append("The procfs filesystem doesn't seem to be mounted"
|
613 | 7c0aa8e9 | Iustin Pop | " under /proc, missing required directory /proc/sys and"
|
614 | 7c0aa8e9 | Iustin Pop | " the file /proc/sysrq-trigger")
|
615 | 313b2dd4 | Michael Hanselmann | |
616 | 313b2dd4 | Michael Hanselmann | if constants.NV_TIME in what: |
617 | 313b2dd4 | Michael Hanselmann | result[constants.NV_TIME] = utils.SplitTime(time.time()) |
618 | 313b2dd4 | Michael Hanselmann | |
619 | 8964ee14 | Iustin Pop | if constants.NV_OSLIST in what and vm_capable: |
620 | b0d85178 | Iustin Pop | result[constants.NV_OSLIST] = DiagnoseOS() |
621 | b0d85178 | Iustin Pop | |
622 | c26a6bd2 | Iustin Pop | return result
|
623 | a8083063 | Iustin Pop | |
624 | a8083063 | Iustin Pop | |
625 | 84d7e26b | Dmitry Chernyak | def GetVolumeList(vg_names): |
626 | a8083063 | Iustin Pop | """Compute list of logical volumes and their size.
|
627 | a8083063 | Iustin Pop |
|
628 | 84d7e26b | Dmitry Chernyak | @type vg_names: list
|
629 | 84d7e26b | Dmitry Chernyak | @param vg_names: the volume groups whose LVs we should list
|
630 | 10c2650b | Iustin Pop | @rtype: dict
|
631 | 10c2650b | Iustin Pop | @return:
|
632 | 10c2650b | Iustin Pop | dictionary of all partions (key) with value being a tuple of
|
633 | 10c2650b | Iustin Pop | their size (in MiB), inactive and online status::
|
634 | 10c2650b | Iustin Pop |
|
635 | 84d7e26b | Dmitry Chernyak | {'xenvg/test1': ('20.06', True, True)}
|
636 | 10c2650b | Iustin Pop |
|
637 | 10c2650b | Iustin Pop | in case of errors, a string is returned with the error
|
638 | 10c2650b | Iustin Pop | details.
|
639 | a8083063 | Iustin Pop |
|
640 | a8083063 | Iustin Pop | """
|
641 | cb2037a2 | Iustin Pop | lvs = {} |
642 | cb2037a2 | Iustin Pop | sep = '|'
|
643 | cb2037a2 | Iustin Pop | result = utils.RunCmd(["lvs", "--noheadings", "--units=m", "--nosuffix", |
644 | cb2037a2 | Iustin Pop | "--separator=%s" % sep,
|
645 | 84d7e26b | Dmitry Chernyak | "-ovg_name,lv_name,lv_size,lv_attr"] + vg_names)
|
646 | a8083063 | Iustin Pop | if result.failed:
|
647 | 29d376ec | Iustin Pop | _Fail("Failed to list logical volumes, lvs output: %s", result.output)
|
648 | cb2037a2 | Iustin Pop | |
649 | cb2037a2 | Iustin Pop | for line in result.stdout.splitlines(): |
650 | df4c2628 | Iustin Pop | line = line.strip() |
651 | 0b5303da | Iustin Pop | match = _LVSLINE_REGEX.match(line) |
652 | df4c2628 | Iustin Pop | if not match: |
653 | 18682bca | Iustin Pop | logging.error("Invalid line returned from lvs output: '%s'", line)
|
654 | df4c2628 | Iustin Pop | continue
|
655 | 84d7e26b | Dmitry Chernyak | vg_name, name, size, attr = match.groups() |
656 | cb2037a2 | Iustin Pop | inactive = attr[4] == '-' |
657 | cb2037a2 | Iustin Pop | online = attr[5] == 'o' |
658 | 33f2a81a | Iustin Pop | virtual = attr[0] == 'v' |
659 | 33f2a81a | Iustin Pop | if virtual:
|
660 | 33f2a81a | Iustin Pop | # we don't want to report such volumes as existing, since they
|
661 | 33f2a81a | Iustin Pop | # don't really hold data
|
662 | 33f2a81a | Iustin Pop | continue
|
663 | 84d7e26b | Dmitry Chernyak | lvs[vg_name+"/"+name] = (size, inactive, online)
|
664 | cb2037a2 | Iustin Pop | |
665 | cb2037a2 | Iustin Pop | return lvs
|
666 | a8083063 | Iustin Pop | |
667 | a8083063 | Iustin Pop | |
668 | a8083063 | Iustin Pop | def ListVolumeGroups(): |
669 | 2f8598a5 | Alexander Schreiber | """List the volume groups and their size.
|
670 | a8083063 | Iustin Pop |
|
671 | 10c2650b | Iustin Pop | @rtype: dict
|
672 | 10c2650b | Iustin Pop | @return: dictionary with keys volume name and values the
|
673 | 10c2650b | Iustin Pop | size of the volume
|
674 | a8083063 | Iustin Pop |
|
675 | a8083063 | Iustin Pop | """
|
676 | c26a6bd2 | Iustin Pop | return utils.ListVolumeGroups()
|
677 | a8083063 | Iustin Pop | |
678 | a8083063 | Iustin Pop | |
679 | dcb93971 | Michael Hanselmann | def NodeVolumes(): |
680 | dcb93971 | Michael Hanselmann | """List all volumes on this node.
|
681 | dcb93971 | Michael Hanselmann |
|
682 | 10c2650b | Iustin Pop | @rtype: list
|
683 | 10c2650b | Iustin Pop | @return:
|
684 | 10c2650b | Iustin Pop | A list of dictionaries, each having four keys:
|
685 | 10c2650b | Iustin Pop | - name: the logical volume name,
|
686 | 10c2650b | Iustin Pop | - size: the size of the logical volume
|
687 | 10c2650b | Iustin Pop | - dev: the physical device on which the LV lives
|
688 | 10c2650b | Iustin Pop | - vg: the volume group to which it belongs
|
689 | 10c2650b | Iustin Pop |
|
690 | 10c2650b | Iustin Pop | In case of errors, we return an empty list and log the
|
691 | 10c2650b | Iustin Pop | error.
|
692 | 10c2650b | Iustin Pop |
|
693 | 10c2650b | Iustin Pop | Note that since a logical volume can live on multiple physical
|
694 | 10c2650b | Iustin Pop | volumes, the resulting list might include a logical volume
|
695 | 10c2650b | Iustin Pop | multiple times.
|
696 | 10c2650b | Iustin Pop |
|
697 | dcb93971 | Michael Hanselmann | """
|
698 | dcb93971 | Michael Hanselmann | result = utils.RunCmd(["lvs", "--noheadings", "--units=m", "--nosuffix", |
699 | dcb93971 | Michael Hanselmann | "--separator=|",
|
700 | dcb93971 | Michael Hanselmann | "--options=lv_name,lv_size,devices,vg_name"])
|
701 | dcb93971 | Michael Hanselmann | if result.failed:
|
702 | 10bfe6cb | Iustin Pop | _Fail("Failed to list logical volumes, lvs output: %s",
|
703 | 10bfe6cb | Iustin Pop | result.output) |
704 | dcb93971 | Michael Hanselmann | |
705 | dcb93971 | Michael Hanselmann | def parse_dev(dev): |
706 | 89e5ab02 | Iustin Pop | return dev.split('(')[0] |
707 | 89e5ab02 | Iustin Pop | |
708 | 89e5ab02 | Iustin Pop | def handle_dev(dev): |
709 | 89e5ab02 | Iustin Pop | return [parse_dev(x) for x in dev.split(",")] |
710 | dcb93971 | Michael Hanselmann | |
711 | dcb93971 | Michael Hanselmann | def map_line(line): |
712 | 89e5ab02 | Iustin Pop | line = [v.strip() for v in line] |
713 | 89e5ab02 | Iustin Pop | return [{'name': line[0], 'size': line[1], |
714 | 89e5ab02 | Iustin Pop | 'dev': dev, 'vg': line[3]} for dev in handle_dev(line[2])] |
715 | 89e5ab02 | Iustin Pop | |
716 | 89e5ab02 | Iustin Pop | all_devs = [] |
717 | 89e5ab02 | Iustin Pop | for line in result.stdout.splitlines(): |
718 | 89e5ab02 | Iustin Pop | if line.count('|') >= 3: |
719 | 89e5ab02 | Iustin Pop | all_devs.extend(map_line(line.split('|')))
|
720 | 89e5ab02 | Iustin Pop | else:
|
721 | 89e5ab02 | Iustin Pop | logging.warning("Strange line in the output from lvs: '%s'", line)
|
722 | 89e5ab02 | Iustin Pop | return all_devs
|
723 | dcb93971 | Michael Hanselmann | |
724 | dcb93971 | Michael Hanselmann | |
725 | a8083063 | Iustin Pop | def BridgesExist(bridges_list): |
726 | 2f8598a5 | Alexander Schreiber | """Check if a list of bridges exist on the current node.
|
727 | a8083063 | Iustin Pop |
|
728 | b1206984 | Iustin Pop | @rtype: boolean
|
729 | b1206984 | Iustin Pop | @return: C{True} if all of them exist, C{False} otherwise
|
730 | a8083063 | Iustin Pop |
|
731 | a8083063 | Iustin Pop | """
|
732 | 35c0c8da | Iustin Pop | missing = [] |
733 | a8083063 | Iustin Pop | for bridge in bridges_list: |
734 | a8083063 | Iustin Pop | if not utils.BridgeExists(bridge): |
735 | 35c0c8da | Iustin Pop | missing.append(bridge) |
736 | a8083063 | Iustin Pop | |
737 | 35c0c8da | Iustin Pop | if missing:
|
738 | 1f864b60 | Iustin Pop | _Fail("Missing bridges %s", utils.CommaJoin(missing))
|
739 | 35c0c8da | Iustin Pop | |
740 | a8083063 | Iustin Pop | |
741 | e69d05fd | Iustin Pop | def GetInstanceList(hypervisor_list): |
742 | 2f8598a5 | Alexander Schreiber | """Provides a list of instances.
|
743 | a8083063 | Iustin Pop |
|
744 | e69d05fd | Iustin Pop | @type hypervisor_list: list
|
745 | e69d05fd | Iustin Pop | @param hypervisor_list: the list of hypervisors to query information
|
746 | e69d05fd | Iustin Pop |
|
747 | e69d05fd | Iustin Pop | @rtype: list
|
748 | e69d05fd | Iustin Pop | @return: a list of all running instances on the current node
|
749 | 10c2650b | Iustin Pop | - instance1.example.com
|
750 | 10c2650b | Iustin Pop | - instance2.example.com
|
751 | a8083063 | Iustin Pop |
|
752 | 098c0958 | Michael Hanselmann | """
|
753 | e69d05fd | Iustin Pop | results = [] |
754 | e69d05fd | Iustin Pop | for hname in hypervisor_list: |
755 | e69d05fd | Iustin Pop | try:
|
756 | e69d05fd | Iustin Pop | names = hypervisor.GetHypervisor(hname).ListInstances() |
757 | e69d05fd | Iustin Pop | results.extend(names) |
758 | e69d05fd | Iustin Pop | except errors.HypervisorError, err:
|
759 | aca13712 | Iustin Pop | _Fail("Error enumerating instances (hypervisor %s): %s",
|
760 | aca13712 | Iustin Pop | hname, err, exc=True)
|
761 | a8083063 | Iustin Pop | |
762 | e69d05fd | Iustin Pop | return results
|
763 | a8083063 | Iustin Pop | |
764 | a8083063 | Iustin Pop | |
765 | e69d05fd | Iustin Pop | def GetInstanceInfo(instance, hname): |
766 | 5bbd3f7f | Michael Hanselmann | """Gives back the information about an instance as a dictionary.
|
767 | a8083063 | Iustin Pop |
|
768 | e69d05fd | Iustin Pop | @type instance: string
|
769 | e69d05fd | Iustin Pop | @param instance: the instance name
|
770 | e69d05fd | Iustin Pop | @type hname: string
|
771 | e69d05fd | Iustin Pop | @param hname: the hypervisor type of the instance
|
772 | a8083063 | Iustin Pop |
|
773 | e69d05fd | Iustin Pop | @rtype: dict
|
774 | e69d05fd | Iustin Pop | @return: dictionary with the following keys:
|
775 | e69d05fd | Iustin Pop | - memory: memory size of instance (int)
|
776 | e69d05fd | Iustin Pop | - state: xen state of instance (string)
|
777 | e69d05fd | Iustin Pop | - time: cpu time of instance (float)
|
778 | a8083063 | Iustin Pop |
|
779 | 098c0958 | Michael Hanselmann | """
|
780 | a8083063 | Iustin Pop | output = {} |
781 | a8083063 | Iustin Pop | |
782 | e69d05fd | Iustin Pop | iinfo = hypervisor.GetHypervisor(hname).GetInstanceInfo(instance) |
783 | a8083063 | Iustin Pop | if iinfo is not None: |
784 | a8083063 | Iustin Pop | output['memory'] = iinfo[2] |
785 | a8083063 | Iustin Pop | output['state'] = iinfo[4] |
786 | a8083063 | Iustin Pop | output['time'] = iinfo[5] |
787 | a8083063 | Iustin Pop | |
788 | c26a6bd2 | Iustin Pop | return output
|
789 | a8083063 | Iustin Pop | |
790 | a8083063 | Iustin Pop | |
791 | 56e7640c | Iustin Pop | def GetInstanceMigratable(instance): |
792 | 56e7640c | Iustin Pop | """Gives whether an instance can be migrated.
|
793 | 56e7640c | Iustin Pop |
|
794 | 56e7640c | Iustin Pop | @type instance: L{objects.Instance}
|
795 | 56e7640c | Iustin Pop | @param instance: object representing the instance to be checked.
|
796 | 56e7640c | Iustin Pop |
|
797 | 56e7640c | Iustin Pop | @rtype: tuple
|
798 | 56e7640c | Iustin Pop | @return: tuple of (result, description) where:
|
799 | 56e7640c | Iustin Pop | - result: whether the instance can be migrated or not
|
800 | 56e7640c | Iustin Pop | - description: a description of the issue, if relevant
|
801 | 56e7640c | Iustin Pop |
|
802 | 56e7640c | Iustin Pop | """
|
803 | 56e7640c | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
804 | afdc3985 | Iustin Pop | iname = instance.name |
805 | afdc3985 | Iustin Pop | if iname not in hyper.ListInstances(): |
806 | afdc3985 | Iustin Pop | _Fail("Instance %s is not running", iname)
|
807 | 56e7640c | Iustin Pop | |
808 | 56e7640c | Iustin Pop | for idx in range(len(instance.disks)): |
809 | afdc3985 | Iustin Pop | link_name = _GetBlockDevSymlinkPath(iname, idx) |
810 | 56e7640c | Iustin Pop | if not os.path.islink(link_name): |
811 | b8ebd37b | Iustin Pop | logging.warning("Instance %s is missing symlink %s for disk %d",
|
812 | b8ebd37b | Iustin Pop | iname, link_name, idx) |
813 | 56e7640c | Iustin Pop | |
814 | 56e7640c | Iustin Pop | |
815 | e69d05fd | Iustin Pop | def GetAllInstancesInfo(hypervisor_list): |
816 | a8083063 | Iustin Pop | """Gather data about all instances.
|
817 | a8083063 | Iustin Pop |
|
818 | 10c2650b | Iustin Pop | This is the equivalent of L{GetInstanceInfo}, except that it
|
819 | a8083063 | Iustin Pop | computes data for all instances at once, thus being faster if one
|
820 | a8083063 | Iustin Pop | needs data about more than one instance.
|
821 | a8083063 | Iustin Pop |
|
822 | e69d05fd | Iustin Pop | @type hypervisor_list: list
|
823 | e69d05fd | Iustin Pop | @param hypervisor_list: list of hypervisors to query for instance data
|
824 | e69d05fd | Iustin Pop |
|
825 | 955db481 | Guido Trotter | @rtype: dict
|
826 | e69d05fd | Iustin Pop | @return: dictionary of instance: data, with data having the following keys:
|
827 | e69d05fd | Iustin Pop | - memory: memory size of instance (int)
|
828 | e69d05fd | Iustin Pop | - state: xen state of instance (string)
|
829 | e69d05fd | Iustin Pop | - time: cpu time of instance (float)
|
830 | 10c2650b | Iustin Pop | - vcpus: the number of vcpus
|
831 | a8083063 | Iustin Pop |
|
832 | 098c0958 | Michael Hanselmann | """
|
833 | a8083063 | Iustin Pop | output = {} |
834 | a8083063 | Iustin Pop | |
835 | e69d05fd | Iustin Pop | for hname in hypervisor_list: |
836 | e69d05fd | Iustin Pop | iinfo = hypervisor.GetHypervisor(hname).GetAllInstancesInfo() |
837 | e69d05fd | Iustin Pop | if iinfo:
|
838 | 29921401 | Iustin Pop | for name, _, memory, vcpus, state, times in iinfo: |
839 | f23b5ae8 | Iustin Pop | value = { |
840 | e69d05fd | Iustin Pop | 'memory': memory,
|
841 | e69d05fd | Iustin Pop | 'vcpus': vcpus,
|
842 | e69d05fd | Iustin Pop | 'state': state,
|
843 | e69d05fd | Iustin Pop | 'time': times,
|
844 | e69d05fd | Iustin Pop | } |
845 | b33b6f55 | Iustin Pop | if name in output: |
846 | b33b6f55 | Iustin Pop | # we only check static parameters, like memory and vcpus,
|
847 | b33b6f55 | Iustin Pop | # and not state and time which can change between the
|
848 | b33b6f55 | Iustin Pop | # invocations of the different hypervisors
|
849 | b33b6f55 | Iustin Pop | for key in 'memory', 'vcpus': |
850 | b33b6f55 | Iustin Pop | if value[key] != output[name][key]:
|
851 | 2fa74ef4 | Iustin Pop | _Fail("Instance %s is running twice"
|
852 | 2fa74ef4 | Iustin Pop | " with different parameters", name)
|
853 | f23b5ae8 | Iustin Pop | output[name] = value |
854 | a8083063 | Iustin Pop | |
855 | c26a6bd2 | Iustin Pop | return output
|
856 | a8083063 | Iustin Pop | |
857 | a8083063 | Iustin Pop | |
858 | 81a3406c | Iustin Pop | def _InstanceLogName(kind, os_name, instance): |
859 | 81a3406c | Iustin Pop | """Compute the OS log filename for a given instance and operation.
|
860 | 81a3406c | Iustin Pop |
|
861 | 81a3406c | Iustin Pop | The instance name and os name are passed in as strings since not all
|
862 | 81a3406c | Iustin Pop | operations have these as part of an instance object.
|
863 | 81a3406c | Iustin Pop |
|
864 | 81a3406c | Iustin Pop | @type kind: string
|
865 | 81a3406c | Iustin Pop | @param kind: the operation type (e.g. add, import, etc.)
|
866 | 81a3406c | Iustin Pop | @type os_name: string
|
867 | 81a3406c | Iustin Pop | @param os_name: the os name
|
868 | 81a3406c | Iustin Pop | @type instance: string
|
869 | 81a3406c | Iustin Pop | @param instance: the name of the instance being imported/added/etc.
|
870 | 81a3406c | Iustin Pop |
|
871 | 81a3406c | Iustin Pop | """
|
872 | 1651d116 | Michael Hanselmann | # TODO: Use tempfile.mkstemp to create unique filename
|
873 | 1d466a4f | Michael Hanselmann | base = ("%s-%s-%s-%s.log" %
|
874 | 1d466a4f | Michael Hanselmann | (kind, os_name, instance, utils.TimestampForFilename())) |
875 | 81a3406c | Iustin Pop | return utils.PathJoin(constants.LOG_OS_DIR, base)
|
876 | 81a3406c | Iustin Pop | |
877 | 81a3406c | Iustin Pop | |
878 | 4a0e011f | Iustin Pop | def InstanceOsAdd(instance, reinstall, debug): |
879 | 2f8598a5 | Alexander Schreiber | """Add an OS to an instance.
|
880 | a8083063 | Iustin Pop |
|
881 | d15a9ad3 | Guido Trotter | @type instance: L{objects.Instance}
|
882 | d15a9ad3 | Guido Trotter | @param instance: Instance whose OS is to be installed
|
883 | e557bae9 | Guido Trotter | @type reinstall: boolean
|
884 | e557bae9 | Guido Trotter | @param reinstall: whether this is an instance reinstall
|
885 | 4a0e011f | Iustin Pop | @type debug: integer
|
886 | 4a0e011f | Iustin Pop | @param debug: debug level, passed to the OS scripts
|
887 | c26a6bd2 | Iustin Pop | @rtype: None
|
888 | a8083063 | Iustin Pop |
|
889 | a8083063 | Iustin Pop | """
|
890 | 255dcebd | Iustin Pop | inst_os = OSFromDisk(instance.os) |
891 | 255dcebd | Iustin Pop | |
892 | 4a0e011f | Iustin Pop | create_env = OSEnvironment(instance, inst_os, debug) |
893 | e557bae9 | Guido Trotter | if reinstall:
|
894 | e557bae9 | Guido Trotter | create_env['INSTANCE_REINSTALL'] = "1" |
895 | a8083063 | Iustin Pop | |
896 | 81a3406c | Iustin Pop | logfile = _InstanceLogName("add", instance.os, instance.name)
|
897 | decd5f45 | Iustin Pop | |
898 | d868edb4 | Iustin Pop | result = utils.RunCmd([inst_os.create_script], env=create_env, |
899 | d868edb4 | Iustin Pop | cwd=inst_os.path, output=logfile,) |
900 | decd5f45 | Iustin Pop | if result.failed:
|
901 | 18682bca | Iustin Pop | logging.error("os create command '%s' returned error: %s, logfile: %s,"
|
902 | d868edb4 | Iustin Pop | " output: %s", result.cmd, result.fail_reason, logfile,
|
903 | 18682bca | Iustin Pop | result.output) |
904 | 26f15862 | Iustin Pop | lines = [utils.SafeEncode(val) |
905 | 20e01edd | Iustin Pop | for val in utils.TailFile(logfile, lines=20)] |
906 | afdc3985 | Iustin Pop | _Fail("OS create script failed (%s), last lines in the"
|
907 | afdc3985 | Iustin Pop | " log file:\n%s", result.fail_reason, "\n".join(lines), log=False) |
908 | decd5f45 | Iustin Pop | |
909 | decd5f45 | Iustin Pop | |
910 | 4a0e011f | Iustin Pop | def RunRenameInstance(instance, old_name, debug): |
911 | decd5f45 | Iustin Pop | """Run the OS rename script for an instance.
|
912 | decd5f45 | Iustin Pop |
|
913 | b1206984 | Iustin Pop | @type instance: L{objects.Instance}
|
914 | d15a9ad3 | Guido Trotter | @param instance: Instance whose OS is to be installed
|
915 | d15a9ad3 | Guido Trotter | @type old_name: string
|
916 | d15a9ad3 | Guido Trotter | @param old_name: previous instance name
|
917 | 4a0e011f | Iustin Pop | @type debug: integer
|
918 | 4a0e011f | Iustin Pop | @param debug: debug level, passed to the OS scripts
|
919 | 10c2650b | Iustin Pop | @rtype: boolean
|
920 | 10c2650b | Iustin Pop | @return: the success of the operation
|
921 | decd5f45 | Iustin Pop |
|
922 | decd5f45 | Iustin Pop | """
|
923 | decd5f45 | Iustin Pop | inst_os = OSFromDisk(instance.os) |
924 | decd5f45 | Iustin Pop | |
925 | 4a0e011f | Iustin Pop | rename_env = OSEnvironment(instance, inst_os, debug) |
926 | ff38b6c0 | Guido Trotter | rename_env['OLD_INSTANCE_NAME'] = old_name
|
927 | decd5f45 | Iustin Pop | |
928 | 81a3406c | Iustin Pop | logfile = _InstanceLogName("rename", instance.os,
|
929 | 81a3406c | Iustin Pop | "%s-%s" % (old_name, instance.name))
|
930 | a8083063 | Iustin Pop | |
931 | d868edb4 | Iustin Pop | result = utils.RunCmd([inst_os.rename_script], env=rename_env, |
932 | d868edb4 | Iustin Pop | cwd=inst_os.path, output=logfile) |
933 | a8083063 | Iustin Pop | |
934 | a8083063 | Iustin Pop | if result.failed:
|
935 | 18682bca | Iustin Pop | logging.error("os create command '%s' returned error: %s output: %s",
|
936 | d868edb4 | Iustin Pop | result.cmd, result.fail_reason, result.output) |
937 | 26f15862 | Iustin Pop | lines = [utils.SafeEncode(val) |
938 | 96841384 | Iustin Pop | for val in utils.TailFile(logfile, lines=20)] |
939 | afdc3985 | Iustin Pop | _Fail("OS rename script failed (%s), last lines in the"
|
940 | afdc3985 | Iustin Pop | " log file:\n%s", result.fail_reason, "\n".join(lines), log=False) |
941 | a8083063 | Iustin Pop | |
942 | a8083063 | Iustin Pop | |
943 | 5282084b | Iustin Pop | def _GetBlockDevSymlinkPath(instance_name, idx): |
944 | c4feafe8 | Iustin Pop | return utils.PathJoin(constants.DISK_LINKS_DIR,
|
945 | c4feafe8 | Iustin Pop | "%s:%d" % (instance_name, idx))
|
946 | 5282084b | Iustin Pop | |
947 | 5282084b | Iustin Pop | |
948 | 5282084b | Iustin Pop | def _SymlinkBlockDev(instance_name, device_path, idx): |
949 | 9332fd8a | Iustin Pop | """Set up symlinks to a instance's block device.
|
950 | 9332fd8a | Iustin Pop |
|
951 | 9332fd8a | Iustin Pop | This is an auxiliary function run when an instance is start (on the primary
|
952 | 9332fd8a | Iustin Pop | node) or when an instance is migrated (on the target node).
|
953 | 9332fd8a | Iustin Pop |
|
954 | 9332fd8a | Iustin Pop |
|
955 | 5282084b | Iustin Pop | @param instance_name: the name of the target instance
|
956 | 5282084b | Iustin Pop | @param device_path: path of the physical block device, on the node
|
957 | 5282084b | Iustin Pop | @param idx: the disk index
|
958 | 5282084b | Iustin Pop | @return: absolute path to the disk's symlink
|
959 | 9332fd8a | Iustin Pop |
|
960 | 9332fd8a | Iustin Pop | """
|
961 | 5282084b | Iustin Pop | link_name = _GetBlockDevSymlinkPath(instance_name, idx) |
962 | 9332fd8a | Iustin Pop | try:
|
963 | 9332fd8a | Iustin Pop | os.symlink(device_path, link_name) |
964 | 5282084b | Iustin Pop | except OSError, err: |
965 | 5282084b | Iustin Pop | if err.errno == errno.EEXIST:
|
966 | 9332fd8a | Iustin Pop | if (not os.path.islink(link_name) or |
967 | 9332fd8a | Iustin Pop | os.readlink(link_name) != device_path): |
968 | 9332fd8a | Iustin Pop | os.remove(link_name) |
969 | 9332fd8a | Iustin Pop | os.symlink(device_path, link_name) |
970 | 9332fd8a | Iustin Pop | else:
|
971 | 9332fd8a | Iustin Pop | raise
|
972 | 9332fd8a | Iustin Pop | |
973 | 9332fd8a | Iustin Pop | return link_name
|
974 | 9332fd8a | Iustin Pop | |
975 | 9332fd8a | Iustin Pop | |
976 | 5282084b | Iustin Pop | def _RemoveBlockDevLinks(instance_name, disks): |
977 | 3c9c571d | Iustin Pop | """Remove the block device symlinks belonging to the given instance.
|
978 | 3c9c571d | Iustin Pop |
|
979 | 3c9c571d | Iustin Pop | """
|
980 | 29921401 | Iustin Pop | for idx, _ in enumerate(disks): |
981 | 5282084b | Iustin Pop | link_name = _GetBlockDevSymlinkPath(instance_name, idx) |
982 | 5282084b | Iustin Pop | if os.path.islink(link_name):
|
983 | 3c9c571d | Iustin Pop | try:
|
984 | 03dfa658 | Iustin Pop | os.remove(link_name) |
985 | 03dfa658 | Iustin Pop | except OSError: |
986 | 03dfa658 | Iustin Pop | logging.exception("Can't remove symlink '%s'", link_name)
|
987 | 3c9c571d | Iustin Pop | |
988 | 3c9c571d | Iustin Pop | |
989 | 9332fd8a | Iustin Pop | def _GatherAndLinkBlockDevs(instance): |
990 | a8083063 | Iustin Pop | """Set up an instance's block device(s).
|
991 | a8083063 | Iustin Pop |
|
992 | a8083063 | Iustin Pop | This is run on the primary node at instance startup. The block
|
993 | a8083063 | Iustin Pop | devices must be already assembled.
|
994 | a8083063 | Iustin Pop |
|
995 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
996 | 10c2650b | Iustin Pop | @param instance: the instance whose disks we shoul assemble
|
997 | 069cfbf1 | Iustin Pop | @rtype: list
|
998 | 069cfbf1 | Iustin Pop | @return: list of (disk_object, device_path)
|
999 | 10c2650b | Iustin Pop |
|
1000 | a8083063 | Iustin Pop | """
|
1001 | a8083063 | Iustin Pop | block_devices = [] |
1002 | 9332fd8a | Iustin Pop | for idx, disk in enumerate(instance.disks): |
1003 | a8083063 | Iustin Pop | device = _RecursiveFindBD(disk) |
1004 | a8083063 | Iustin Pop | if device is None: |
1005 | a8083063 | Iustin Pop | raise errors.BlockDeviceError("Block device '%s' is not set up." % |
1006 | a8083063 | Iustin Pop | str(disk))
|
1007 | a8083063 | Iustin Pop | device.Open() |
1008 | 9332fd8a | Iustin Pop | try:
|
1009 | 5282084b | Iustin Pop | link_name = _SymlinkBlockDev(instance.name, device.dev_path, idx) |
1010 | 9332fd8a | Iustin Pop | except OSError, e: |
1011 | 9332fd8a | Iustin Pop | raise errors.BlockDeviceError("Cannot create block device symlink: %s" % |
1012 | 9332fd8a | Iustin Pop | e.strerror) |
1013 | 9332fd8a | Iustin Pop | |
1014 | 9332fd8a | Iustin Pop | block_devices.append((disk, link_name)) |
1015 | 9332fd8a | Iustin Pop | |
1016 | a8083063 | Iustin Pop | return block_devices
|
1017 | a8083063 | Iustin Pop | |
1018 | a8083063 | Iustin Pop | |
1019 | 07813a9e | Iustin Pop | def StartInstance(instance): |
1020 | a8083063 | Iustin Pop | """Start an instance.
|
1021 | a8083063 | Iustin Pop |
|
1022 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1023 | e69d05fd | Iustin Pop | @param instance: the instance object
|
1024 | c26a6bd2 | Iustin Pop | @rtype: None
|
1025 | a8083063 | Iustin Pop |
|
1026 | 098c0958 | Michael Hanselmann | """
|
1027 | e69d05fd | Iustin Pop | running_instances = GetInstanceList([instance.hypervisor]) |
1028 | a8083063 | Iustin Pop | |
1029 | a8083063 | Iustin Pop | if instance.name in running_instances: |
1030 | c26a6bd2 | Iustin Pop | logging.info("Instance %s already running, not starting", instance.name)
|
1031 | c26a6bd2 | Iustin Pop | return
|
1032 | a8083063 | Iustin Pop | |
1033 | a8083063 | Iustin Pop | try:
|
1034 | ec596c24 | Iustin Pop | block_devices = _GatherAndLinkBlockDevs(instance) |
1035 | ec596c24 | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1036 | 07813a9e | Iustin Pop | hyper.StartInstance(instance, block_devices) |
1037 | ec596c24 | Iustin Pop | except errors.BlockDeviceError, err:
|
1038 | 2cc6781a | Iustin Pop | _Fail("Block device error: %s", err, exc=True) |
1039 | a8083063 | Iustin Pop | except errors.HypervisorError, err:
|
1040 | 5282084b | Iustin Pop | _RemoveBlockDevLinks(instance.name, instance.disks) |
1041 | 2cc6781a | Iustin Pop | _Fail("Hypervisor error: %s", err, exc=True) |
1042 | a8083063 | Iustin Pop | |
1043 | a8083063 | Iustin Pop | |
1044 | 6263189c | Guido Trotter | def InstanceShutdown(instance, timeout): |
1045 | a8083063 | Iustin Pop | """Shut an instance down.
|
1046 | a8083063 | Iustin Pop |
|
1047 | 10c2650b | Iustin Pop | @note: this functions uses polling with a hardcoded timeout.
|
1048 | 10c2650b | Iustin Pop |
|
1049 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1050 | e69d05fd | Iustin Pop | @param instance: the instance object
|
1051 | 6263189c | Guido Trotter | @type timeout: integer
|
1052 | 6263189c | Guido Trotter | @param timeout: maximum timeout for soft shutdown
|
1053 | c26a6bd2 | Iustin Pop | @rtype: None
|
1054 | a8083063 | Iustin Pop |
|
1055 | 098c0958 | Michael Hanselmann | """
|
1056 | e69d05fd | Iustin Pop | hv_name = instance.hypervisor |
1057 | e4e9b806 | Guido Trotter | hyper = hypervisor.GetHypervisor(hv_name) |
1058 | c26a6bd2 | Iustin Pop | iname = instance.name |
1059 | a8083063 | Iustin Pop | |
1060 | 3c0cdc83 | Michael Hanselmann | if instance.name not in hyper.ListInstances(): |
1061 | c26a6bd2 | Iustin Pop | logging.info("Instance %s not running, doing nothing", iname)
|
1062 | c26a6bd2 | Iustin Pop | return
|
1063 | a8083063 | Iustin Pop | |
1064 | 3c0cdc83 | Michael Hanselmann | class _TryShutdown: |
1065 | 3c0cdc83 | Michael Hanselmann | def __init__(self): |
1066 | 3c0cdc83 | Michael Hanselmann | self.tried_once = False |
1067 | a8083063 | Iustin Pop | |
1068 | 3c0cdc83 | Michael Hanselmann | def __call__(self): |
1069 | 3c0cdc83 | Michael Hanselmann | if iname not in hyper.ListInstances(): |
1070 | 3c0cdc83 | Michael Hanselmann | return
|
1071 | 3c0cdc83 | Michael Hanselmann | |
1072 | 3c0cdc83 | Michael Hanselmann | try:
|
1073 | 3c0cdc83 | Michael Hanselmann | hyper.StopInstance(instance, retry=self.tried_once)
|
1074 | 3c0cdc83 | Michael Hanselmann | except errors.HypervisorError, err:
|
1075 | 3c0cdc83 | Michael Hanselmann | if iname not in hyper.ListInstances(): |
1076 | 3c0cdc83 | Michael Hanselmann | # if the instance is no longer existing, consider this a
|
1077 | 3c0cdc83 | Michael Hanselmann | # success and go to cleanup
|
1078 | 3c0cdc83 | Michael Hanselmann | return
|
1079 | 3c0cdc83 | Michael Hanselmann | |
1080 | 3c0cdc83 | Michael Hanselmann | _Fail("Failed to stop instance %s: %s", iname, err)
|
1081 | 3c0cdc83 | Michael Hanselmann | |
1082 | 3c0cdc83 | Michael Hanselmann | self.tried_once = True |
1083 | 3c0cdc83 | Michael Hanselmann | |
1084 | 3c0cdc83 | Michael Hanselmann | raise utils.RetryAgain()
|
1085 | 3c0cdc83 | Michael Hanselmann | |
1086 | 3c0cdc83 | Michael Hanselmann | try:
|
1087 | 3c0cdc83 | Michael Hanselmann | utils.Retry(_TryShutdown(), 5, timeout)
|
1088 | 3c0cdc83 | Michael Hanselmann | except utils.RetryTimeout:
|
1089 | a8083063 | Iustin Pop | # the shutdown did not succeed
|
1090 | e4e9b806 | Guido Trotter | logging.error("Shutdown of '%s' unsuccessful, forcing", iname)
|
1091 | a8083063 | Iustin Pop | |
1092 | a8083063 | Iustin Pop | try:
|
1093 | a8083063 | Iustin Pop | hyper.StopInstance(instance, force=True)
|
1094 | a8083063 | Iustin Pop | except errors.HypervisorError, err:
|
1095 | 3c0cdc83 | Michael Hanselmann | if iname in hyper.ListInstances(): |
1096 | 3782acd7 | Iustin Pop | # only raise an error if the instance still exists, otherwise
|
1097 | 3782acd7 | Iustin Pop | # the error could simply be "instance ... unknown"!
|
1098 | 3782acd7 | Iustin Pop | _Fail("Failed to force stop instance %s: %s", iname, err)
|
1099 | a8083063 | Iustin Pop | |
1100 | a8083063 | Iustin Pop | time.sleep(1)
|
1101 | 3c0cdc83 | Michael Hanselmann | |
1102 | 3c0cdc83 | Michael Hanselmann | if iname in hyper.ListInstances(): |
1103 | c26a6bd2 | Iustin Pop | _Fail("Could not shutdown instance %s even by destroy", iname)
|
1104 | 3c9c571d | Iustin Pop | |
1105 | f28ec899 | Guido Trotter | try:
|
1106 | f28ec899 | Guido Trotter | hyper.CleanupInstance(instance.name) |
1107 | f28ec899 | Guido Trotter | except errors.HypervisorError, err:
|
1108 | f28ec899 | Guido Trotter | logging.warning("Failed to execute post-shutdown cleanup step: %s", err)
|
1109 | f28ec899 | Guido Trotter | |
1110 | c26a6bd2 | Iustin Pop | _RemoveBlockDevLinks(iname, instance.disks) |
1111 | a8083063 | Iustin Pop | |
1112 | a8083063 | Iustin Pop | |
1113 | 17c3f802 | Guido Trotter | def InstanceReboot(instance, reboot_type, shutdown_timeout): |
1114 | 007a2f3e | Alexander Schreiber | """Reboot an instance.
|
1115 | 007a2f3e | Alexander Schreiber |
|
1116 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1117 | 10c2650b | Iustin Pop | @param instance: the instance object to reboot
|
1118 | 10c2650b | Iustin Pop | @type reboot_type: str
|
1119 | 10c2650b | Iustin Pop | @param reboot_type: the type of reboot, one the following
|
1120 | 10c2650b | Iustin Pop | constants:
|
1121 | 10c2650b | Iustin Pop | - L{constants.INSTANCE_REBOOT_SOFT}: only reboot the
|
1122 | 10c2650b | Iustin Pop | instance OS, do not recreate the VM
|
1123 | 10c2650b | Iustin Pop | - L{constants.INSTANCE_REBOOT_HARD}: tear down and
|
1124 | 10c2650b | Iustin Pop | restart the VM (at the hypervisor level)
|
1125 | 73e5a4f4 | Iustin Pop | - the other reboot type (L{constants.INSTANCE_REBOOT_FULL}) is
|
1126 | 73e5a4f4 | Iustin Pop | not accepted here, since that mode is handled differently, in
|
1127 | 73e5a4f4 | Iustin Pop | cmdlib, and translates into full stop and start of the
|
1128 | 73e5a4f4 | Iustin Pop | instance (instead of a call_instance_reboot RPC)
|
1129 | 23057d29 | Michael Hanselmann | @type shutdown_timeout: integer
|
1130 | 23057d29 | Michael Hanselmann | @param shutdown_timeout: maximum timeout for soft shutdown
|
1131 | c26a6bd2 | Iustin Pop | @rtype: None
|
1132 | 007a2f3e | Alexander Schreiber |
|
1133 | 007a2f3e | Alexander Schreiber | """
|
1134 | e69d05fd | Iustin Pop | running_instances = GetInstanceList([instance.hypervisor]) |
1135 | 007a2f3e | Alexander Schreiber | |
1136 | 007a2f3e | Alexander Schreiber | if instance.name not in running_instances: |
1137 | 2cc6781a | Iustin Pop | _Fail("Cannot reboot instance %s that is not running", instance.name)
|
1138 | 007a2f3e | Alexander Schreiber | |
1139 | e69d05fd | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1140 | 007a2f3e | Alexander Schreiber | if reboot_type == constants.INSTANCE_REBOOT_SOFT:
|
1141 | 007a2f3e | Alexander Schreiber | try:
|
1142 | 007a2f3e | Alexander Schreiber | hyper.RebootInstance(instance) |
1143 | 007a2f3e | Alexander Schreiber | except errors.HypervisorError, err:
|
1144 | 2cc6781a | Iustin Pop | _Fail("Failed to soft reboot instance %s: %s", instance.name, err)
|
1145 | 007a2f3e | Alexander Schreiber | elif reboot_type == constants.INSTANCE_REBOOT_HARD:
|
1146 | 007a2f3e | Alexander Schreiber | try:
|
1147 | 17c3f802 | Guido Trotter | InstanceShutdown(instance, shutdown_timeout) |
1148 | 07813a9e | Iustin Pop | return StartInstance(instance)
|
1149 | 007a2f3e | Alexander Schreiber | except errors.HypervisorError, err:
|
1150 | 2cc6781a | Iustin Pop | _Fail("Failed to hard reboot instance %s: %s", instance.name, err)
|
1151 | 007a2f3e | Alexander Schreiber | else:
|
1152 | 2cc6781a | Iustin Pop | _Fail("Invalid reboot_type received: %s", reboot_type)
|
1153 | 007a2f3e | Alexander Schreiber | |
1154 | 007a2f3e | Alexander Schreiber | |
1155 | 6906a9d8 | Guido Trotter | def MigrationInfo(instance): |
1156 | 6906a9d8 | Guido Trotter | """Gather information about an instance to be migrated.
|
1157 | 6906a9d8 | Guido Trotter |
|
1158 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1159 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1160 | 6906a9d8 | Guido Trotter |
|
1161 | 6906a9d8 | Guido Trotter | """
|
1162 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1163 | cd42d0ad | Guido Trotter | try:
|
1164 | cd42d0ad | Guido Trotter | info = hyper.MigrationInfo(instance) |
1165 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1166 | 2cc6781a | Iustin Pop | _Fail("Failed to fetch migration information: %s", err, exc=True) |
1167 | c26a6bd2 | Iustin Pop | return info
|
1168 | 6906a9d8 | Guido Trotter | |
1169 | 6906a9d8 | Guido Trotter | |
1170 | 6906a9d8 | Guido Trotter | def AcceptInstance(instance, info, target): |
1171 | 6906a9d8 | Guido Trotter | """Prepare the node to accept an instance.
|
1172 | 6906a9d8 | Guido Trotter |
|
1173 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1174 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1175 | 6906a9d8 | Guido Trotter | @type info: string/data (opaque)
|
1176 | 6906a9d8 | Guido Trotter | @param info: migration information, from the source node
|
1177 | 6906a9d8 | Guido Trotter | @type target: string
|
1178 | 6906a9d8 | Guido Trotter | @param target: target host (usually ip), on this node
|
1179 | 6906a9d8 | Guido Trotter |
|
1180 | 6906a9d8 | Guido Trotter | """
|
1181 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1182 | cd42d0ad | Guido Trotter | try:
|
1183 | cd42d0ad | Guido Trotter | hyper.AcceptInstance(instance, info, target) |
1184 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1185 | 2cc6781a | Iustin Pop | _Fail("Failed to accept instance: %s", err, exc=True) |
1186 | 6906a9d8 | Guido Trotter | |
1187 | 6906a9d8 | Guido Trotter | |
1188 | 6906a9d8 | Guido Trotter | def FinalizeMigration(instance, info, success): |
1189 | 6906a9d8 | Guido Trotter | """Finalize any preparation to accept an instance.
|
1190 | 6906a9d8 | Guido Trotter |
|
1191 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1192 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1193 | 6906a9d8 | Guido Trotter | @type info: string/data (opaque)
|
1194 | 6906a9d8 | Guido Trotter | @param info: migration information, from the source node
|
1195 | 6906a9d8 | Guido Trotter | @type success: boolean
|
1196 | 6906a9d8 | Guido Trotter | @param success: whether the migration was a success or a failure
|
1197 | 6906a9d8 | Guido Trotter |
|
1198 | 6906a9d8 | Guido Trotter | """
|
1199 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1200 | cd42d0ad | Guido Trotter | try:
|
1201 | cd42d0ad | Guido Trotter | hyper.FinalizeMigration(instance, info, success) |
1202 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1203 | 2cc6781a | Iustin Pop | _Fail("Failed to finalize migration: %s", err, exc=True) |
1204 | 6906a9d8 | Guido Trotter | |
1205 | 6906a9d8 | Guido Trotter | |
1206 | 2a10865c | Iustin Pop | def MigrateInstance(instance, target, live): |
1207 | 2a10865c | Iustin Pop | """Migrates an instance to another node.
|
1208 | 2a10865c | Iustin Pop |
|
1209 | b1206984 | Iustin Pop | @type instance: L{objects.Instance}
|
1210 | 9f0e6b37 | Iustin Pop | @param instance: the instance definition
|
1211 | 9f0e6b37 | Iustin Pop | @type target: string
|
1212 | 9f0e6b37 | Iustin Pop | @param target: the target node name
|
1213 | 9f0e6b37 | Iustin Pop | @type live: boolean
|
1214 | 9f0e6b37 | Iustin Pop | @param live: whether the migration should be done live or not (the
|
1215 | 9f0e6b37 | Iustin Pop | interpretation of this parameter is left to the hypervisor)
|
1216 | 9f0e6b37 | Iustin Pop | @rtype: tuple
|
1217 | 9f0e6b37 | Iustin Pop | @return: a tuple of (success, msg) where:
|
1218 | 9f0e6b37 | Iustin Pop | - succes is a boolean denoting the success/failure of the operation
|
1219 | 9f0e6b37 | Iustin Pop | - msg is a string with details in case of failure
|
1220 | 9f0e6b37 | Iustin Pop |
|
1221 | 2a10865c | Iustin Pop | """
|
1222 | 53c776b5 | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1223 | 2a10865c | Iustin Pop | |
1224 | 2a10865c | Iustin Pop | try:
|
1225 | 58d38b02 | Iustin Pop | hyper.MigrateInstance(instance, target, live) |
1226 | 2a10865c | Iustin Pop | except errors.HypervisorError, err:
|
1227 | 2cc6781a | Iustin Pop | _Fail("Failed to migrate instance: %s", err, exc=True) |
1228 | 2a10865c | Iustin Pop | |
1229 | 2a10865c | Iustin Pop | |
1230 | 821d1bd1 | Iustin Pop | def BlockdevCreate(disk, size, owner, on_primary, info): |
1231 | a8083063 | Iustin Pop | """Creates a block device for an instance.
|
1232 | a8083063 | Iustin Pop |
|
1233 | b1206984 | Iustin Pop | @type disk: L{objects.Disk}
|
1234 | b1206984 | Iustin Pop | @param disk: the object describing the disk we should create
|
1235 | b1206984 | Iustin Pop | @type size: int
|
1236 | b1206984 | Iustin Pop | @param size: the size of the physical underlying device, in MiB
|
1237 | b1206984 | Iustin Pop | @type owner: str
|
1238 | b1206984 | Iustin Pop | @param owner: the name of the instance for which disk is created,
|
1239 | b1206984 | Iustin Pop | used for device cache data
|
1240 | b1206984 | Iustin Pop | @type on_primary: boolean
|
1241 | b1206984 | Iustin Pop | @param on_primary: indicates if it is the primary node or not
|
1242 | b1206984 | Iustin Pop | @type info: string
|
1243 | b1206984 | Iustin Pop | @param info: string that will be sent to the physical device
|
1244 | b1206984 | Iustin Pop | creation, used for example to set (LVM) tags on LVs
|
1245 | b1206984 | Iustin Pop |
|
1246 | b1206984 | Iustin Pop | @return: the new unique_id of the device (this can sometime be
|
1247 | b1206984 | Iustin Pop | computed only after creation), or None. On secondary nodes,
|
1248 | b1206984 | Iustin Pop | it's not required to return anything.
|
1249 | a8083063 | Iustin Pop |
|
1250 | a8083063 | Iustin Pop | """
|
1251 | 7260cfbe | Iustin Pop | # TODO: remove the obsolete 'size' argument
|
1252 | 7260cfbe | Iustin Pop | # pylint: disable-msg=W0613
|
1253 | a8083063 | Iustin Pop | clist = [] |
1254 | a8083063 | Iustin Pop | if disk.children:
|
1255 | a8083063 | Iustin Pop | for child in disk.children: |
1256 | 1063abd1 | Iustin Pop | try:
|
1257 | 1063abd1 | Iustin Pop | crdev = _RecursiveAssembleBD(child, owner, on_primary) |
1258 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1259 | 2cc6781a | Iustin Pop | _Fail("Can't assemble device %s: %s", child, err)
|
1260 | a8083063 | Iustin Pop | if on_primary or disk.AssembleOnSecondary(): |
1261 | a8083063 | Iustin Pop | # we need the children open in case the device itself has to
|
1262 | a8083063 | Iustin Pop | # be assembled
|
1263 | 1063abd1 | Iustin Pop | try:
|
1264 | fe267188 | Iustin Pop | # pylint: disable-msg=E1103
|
1265 | 1063abd1 | Iustin Pop | crdev.Open() |
1266 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1267 | 2cc6781a | Iustin Pop | _Fail("Can't make child '%s' read-write: %s", child, err)
|
1268 | a8083063 | Iustin Pop | clist.append(crdev) |
1269 | a8083063 | Iustin Pop | |
1270 | dab69e97 | Iustin Pop | try:
|
1271 | 464f8daf | Iustin Pop | device = bdev.Create(disk.dev_type, disk.physical_id, clist, disk.size) |
1272 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1273 | 2cc6781a | Iustin Pop | _Fail("Can't create block device: %s", err)
|
1274 | 6c626518 | Iustin Pop | |
1275 | a8083063 | Iustin Pop | if on_primary or disk.AssembleOnSecondary(): |
1276 | 1063abd1 | Iustin Pop | try:
|
1277 | 1063abd1 | Iustin Pop | device.Assemble() |
1278 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1279 | 2cc6781a | Iustin Pop | _Fail("Can't assemble device after creation, unusual event: %s", err)
|
1280 | e31c43f7 | Michael Hanselmann | device.SetSyncSpeed(constants.SYNC_SPEED) |
1281 | a8083063 | Iustin Pop | if on_primary or disk.OpenOnSecondary(): |
1282 | 1063abd1 | Iustin Pop | try:
|
1283 | 1063abd1 | Iustin Pop | device.Open(force=True)
|
1284 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1285 | 2cc6781a | Iustin Pop | _Fail("Can't make device r/w after creation, unusual event: %s", err)
|
1286 | 3f78eef2 | Iustin Pop | DevCacheManager.UpdateCache(device.dev_path, owner, |
1287 | 3f78eef2 | Iustin Pop | on_primary, disk.iv_name) |
1288 | a0c3fea1 | Michael Hanselmann | |
1289 | a0c3fea1 | Michael Hanselmann | device.SetInfo(info) |
1290 | a0c3fea1 | Michael Hanselmann | |
1291 | c26a6bd2 | Iustin Pop | return device.unique_id
|
1292 | a8083063 | Iustin Pop | |
1293 | a8083063 | Iustin Pop | |
1294 | da63bb4e | René Nussbaumer | def _WipeDevice(path, offset, size): |
1295 | 69dd363f | René Nussbaumer | """This function actually wipes the device.
|
1296 | 69dd363f | René Nussbaumer |
|
1297 | 69dd363f | René Nussbaumer | @param path: The path to the device to wipe
|
1298 | da63bb4e | René Nussbaumer | @param offset: The offset in MiB in the file
|
1299 | da63bb4e | René Nussbaumer | @param size: The size in MiB to write
|
1300 | 69dd363f | René Nussbaumer |
|
1301 | 69dd363f | René Nussbaumer | """
|
1302 | da63bb4e | René Nussbaumer | cmd = [constants.DD_CMD, "if=/dev/zero", "seek=%d" % offset, |
1303 | da63bb4e | René Nussbaumer | "bs=%d" % constants.WIPE_BLOCK_SIZE, "oflag=direct", "of=%s" % path, |
1304 | da63bb4e | René Nussbaumer | "count=%d" % size]
|
1305 | da63bb4e | René Nussbaumer | result = utils.RunCmd(cmd) |
1306 | 69dd363f | René Nussbaumer | |
1307 | 69dd363f | René Nussbaumer | if result.failed:
|
1308 | 69dd363f | René Nussbaumer | _Fail("Wipe command '%s' exited with error: %s; output: %s", result.cmd,
|
1309 | 69dd363f | René Nussbaumer | result.fail_reason, result.output) |
1310 | 69dd363f | René Nussbaumer | |
1311 | 69dd363f | René Nussbaumer | |
1312 | da63bb4e | René Nussbaumer | def BlockdevWipe(disk, offset, size): |
1313 | 69dd363f | René Nussbaumer | """Wipes a block device.
|
1314 | 69dd363f | René Nussbaumer |
|
1315 | 69dd363f | René Nussbaumer | @type disk: L{objects.Disk}
|
1316 | 69dd363f | René Nussbaumer | @param disk: the disk object we want to wipe
|
1317 | da63bb4e | René Nussbaumer | @type offset: int
|
1318 | da63bb4e | René Nussbaumer | @param offset: The offset in MiB in the file
|
1319 | da63bb4e | René Nussbaumer | @type size: int
|
1320 | da63bb4e | René Nussbaumer | @param size: The size in MiB to write
|
1321 | 69dd363f | René Nussbaumer |
|
1322 | 69dd363f | René Nussbaumer | """
|
1323 | 69dd363f | René Nussbaumer | try:
|
1324 | 69dd363f | René Nussbaumer | rdev = _RecursiveFindBD(disk) |
1325 | da63bb4e | René Nussbaumer | except errors.BlockDeviceError:
|
1326 | da63bb4e | René Nussbaumer | rdev = None
|
1327 | da63bb4e | René Nussbaumer | |
1328 | da63bb4e | René Nussbaumer | if not rdev: |
1329 | da63bb4e | René Nussbaumer | _Fail("Cannot execute wipe for device %s: device not found", disk.iv_name)
|
1330 | da63bb4e | René Nussbaumer | |
1331 | da63bb4e | René Nussbaumer | # Do cross verify some of the parameters
|
1332 | da63bb4e | René Nussbaumer | if offset > rdev.size:
|
1333 | da63bb4e | René Nussbaumer | _Fail("Offset is bigger than device size")
|
1334 | da63bb4e | René Nussbaumer | if (offset + size) > rdev.size:
|
1335 | da63bb4e | René Nussbaumer | _Fail("The provided offset and size to wipe is bigger than device size")
|
1336 | 69dd363f | René Nussbaumer | |
1337 | da63bb4e | René Nussbaumer | _WipeDevice(rdev.dev_path, offset, size) |
1338 | 69dd363f | René Nussbaumer | |
1339 | 69dd363f | René Nussbaumer | |
1340 | 821d1bd1 | Iustin Pop | def BlockdevRemove(disk): |
1341 | a8083063 | Iustin Pop | """Remove a block device.
|
1342 | a8083063 | Iustin Pop |
|
1343 | 10c2650b | Iustin Pop | @note: This is intended to be called recursively.
|
1344 | 10c2650b | Iustin Pop |
|
1345 | c41eea6e | Iustin Pop | @type disk: L{objects.Disk}
|
1346 | 10c2650b | Iustin Pop | @param disk: the disk object we should remove
|
1347 | 10c2650b | Iustin Pop | @rtype: boolean
|
1348 | 10c2650b | Iustin Pop | @return: the success of the operation
|
1349 | a8083063 | Iustin Pop |
|
1350 | a8083063 | Iustin Pop | """
|
1351 | e1bc0878 | Iustin Pop | msgs = [] |
1352 | a8083063 | Iustin Pop | try:
|
1353 | bca2e7f4 | Iustin Pop | rdev = _RecursiveFindBD(disk) |
1354 | a8083063 | Iustin Pop | except errors.BlockDeviceError, err:
|
1355 | a8083063 | Iustin Pop | # probably can't attach
|
1356 | 18682bca | Iustin Pop | logging.info("Can't attach to device %s in remove", disk)
|
1357 | a8083063 | Iustin Pop | rdev = None
|
1358 | a8083063 | Iustin Pop | if rdev is not None: |
1359 | 3f78eef2 | Iustin Pop | r_path = rdev.dev_path |
1360 | e1bc0878 | Iustin Pop | try:
|
1361 | 0c6c04ec | Iustin Pop | rdev.Remove() |
1362 | e1bc0878 | Iustin Pop | except errors.BlockDeviceError, err:
|
1363 | e1bc0878 | Iustin Pop | msgs.append(str(err))
|
1364 | c26a6bd2 | Iustin Pop | if not msgs: |
1365 | 3f78eef2 | Iustin Pop | DevCacheManager.RemoveCache(r_path) |
1366 | e1bc0878 | Iustin Pop | |
1367 | a8083063 | Iustin Pop | if disk.children:
|
1368 | a8083063 | Iustin Pop | for child in disk.children: |
1369 | c26a6bd2 | Iustin Pop | try:
|
1370 | c26a6bd2 | Iustin Pop | BlockdevRemove(child) |
1371 | c26a6bd2 | Iustin Pop | except RPCFail, err:
|
1372 | c26a6bd2 | Iustin Pop | msgs.append(str(err))
|
1373 | e1bc0878 | Iustin Pop | |
1374 | c26a6bd2 | Iustin Pop | if msgs:
|
1375 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
1376 | afdc3985 | Iustin Pop | |
1377 | a8083063 | Iustin Pop | |
1378 | 3f78eef2 | Iustin Pop | def _RecursiveAssembleBD(disk, owner, as_primary): |
1379 | a8083063 | Iustin Pop | """Activate a block device for an instance.
|
1380 | a8083063 | Iustin Pop |
|
1381 | a8083063 | Iustin Pop | This is run on the primary and secondary nodes for an instance.
|
1382 | a8083063 | Iustin Pop |
|
1383 | 10c2650b | Iustin Pop | @note: this function is called recursively.
|
1384 | a8083063 | Iustin Pop |
|
1385 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1386 | 10c2650b | Iustin Pop | @param disk: the disk we try to assemble
|
1387 | 10c2650b | Iustin Pop | @type owner: str
|
1388 | 10c2650b | Iustin Pop | @param owner: the name of the instance which owns the disk
|
1389 | 10c2650b | Iustin Pop | @type as_primary: boolean
|
1390 | 10c2650b | Iustin Pop | @param as_primary: if we should make the block device
|
1391 | 10c2650b | Iustin Pop | read/write
|
1392 | a8083063 | Iustin Pop |
|
1393 | 10c2650b | Iustin Pop | @return: the assembled device or None (in case no device
|
1394 | 10c2650b | Iustin Pop | was assembled)
|
1395 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: in case there is an error
|
1396 | 10c2650b | Iustin Pop | during the activation of the children or the device
|
1397 | 10c2650b | Iustin Pop | itself
|
1398 | a8083063 | Iustin Pop |
|
1399 | a8083063 | Iustin Pop | """
|
1400 | a8083063 | Iustin Pop | children = [] |
1401 | a8083063 | Iustin Pop | if disk.children:
|
1402 | fc1dc9d7 | Iustin Pop | mcn = disk.ChildrenNeeded() |
1403 | fc1dc9d7 | Iustin Pop | if mcn == -1: |
1404 | fc1dc9d7 | Iustin Pop | mcn = 0 # max number of Nones allowed |
1405 | fc1dc9d7 | Iustin Pop | else:
|
1406 | fc1dc9d7 | Iustin Pop | mcn = len(disk.children) - mcn # max number of Nones |
1407 | a8083063 | Iustin Pop | for chld_disk in disk.children: |
1408 | fc1dc9d7 | Iustin Pop | try:
|
1409 | fc1dc9d7 | Iustin Pop | cdev = _RecursiveAssembleBD(chld_disk, owner, as_primary) |
1410 | fc1dc9d7 | Iustin Pop | except errors.BlockDeviceError, err:
|
1411 | 7803d4d3 | Iustin Pop | if children.count(None) >= mcn: |
1412 | fc1dc9d7 | Iustin Pop | raise
|
1413 | fc1dc9d7 | Iustin Pop | cdev = None
|
1414 | 1063abd1 | Iustin Pop | logging.error("Error in child activation (but continuing): %s",
|
1415 | 1063abd1 | Iustin Pop | str(err))
|
1416 | fc1dc9d7 | Iustin Pop | children.append(cdev) |
1417 | a8083063 | Iustin Pop | |
1418 | a8083063 | Iustin Pop | if as_primary or disk.AssembleOnSecondary(): |
1419 | 464f8daf | Iustin Pop | r_dev = bdev.Assemble(disk.dev_type, disk.physical_id, children, disk.size) |
1420 | e31c43f7 | Michael Hanselmann | r_dev.SetSyncSpeed(constants.SYNC_SPEED) |
1421 | a8083063 | Iustin Pop | result = r_dev |
1422 | a8083063 | Iustin Pop | if as_primary or disk.OpenOnSecondary(): |
1423 | a8083063 | Iustin Pop | r_dev.Open() |
1424 | 3f78eef2 | Iustin Pop | DevCacheManager.UpdateCache(r_dev.dev_path, owner, |
1425 | 3f78eef2 | Iustin Pop | as_primary, disk.iv_name) |
1426 | 3f78eef2 | Iustin Pop | |
1427 | a8083063 | Iustin Pop | else:
|
1428 | a8083063 | Iustin Pop | result = True
|
1429 | a8083063 | Iustin Pop | return result
|
1430 | a8083063 | Iustin Pop | |
1431 | a8083063 | Iustin Pop | |
1432 | 821d1bd1 | Iustin Pop | def BlockdevAssemble(disk, owner, as_primary): |
1433 | a8083063 | Iustin Pop | """Activate a block device for an instance.
|
1434 | a8083063 | Iustin Pop |
|
1435 | a8083063 | Iustin Pop | This is a wrapper over _RecursiveAssembleBD.
|
1436 | a8083063 | Iustin Pop |
|
1437 | b1206984 | Iustin Pop | @rtype: str or boolean
|
1438 | b1206984 | Iustin Pop | @return: a C{/dev/...} path for primary nodes, and
|
1439 | b1206984 | Iustin Pop | C{True} for secondary nodes
|
1440 | a8083063 | Iustin Pop |
|
1441 | a8083063 | Iustin Pop | """
|
1442 | 53c14ef1 | Iustin Pop | try:
|
1443 | 53c14ef1 | Iustin Pop | result = _RecursiveAssembleBD(disk, owner, as_primary) |
1444 | 53c14ef1 | Iustin Pop | if isinstance(result, bdev.BlockDev): |
1445 | fe267188 | Iustin Pop | # pylint: disable-msg=E1103
|
1446 | 53c14ef1 | Iustin Pop | result = result.dev_path |
1447 | 53c14ef1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1448 | afdc3985 | Iustin Pop | _Fail("Error while assembling disk: %s", err, exc=True) |
1449 | afdc3985 | Iustin Pop | |
1450 | c26a6bd2 | Iustin Pop | return result
|
1451 | a8083063 | Iustin Pop | |
1452 | a8083063 | Iustin Pop | |
1453 | 821d1bd1 | Iustin Pop | def BlockdevShutdown(disk): |
1454 | a8083063 | Iustin Pop | """Shut down a block device.
|
1455 | a8083063 | Iustin Pop |
|
1456 | 5bbd3f7f | Michael Hanselmann | First, if the device is assembled (Attach() is successful), then
|
1457 | c41eea6e | Iustin Pop | the device is shutdown. Then the children of the device are
|
1458 | c41eea6e | Iustin Pop | shutdown.
|
1459 | a8083063 | Iustin Pop |
|
1460 | a8083063 | Iustin Pop | This function is called recursively. Note that we don't cache the
|
1461 | a8083063 | Iustin Pop | children or such, as oppossed to assemble, shutdown of different
|
1462 | a8083063 | Iustin Pop | devices doesn't require that the upper device was active.
|
1463 | a8083063 | Iustin Pop |
|
1464 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1465 | 10c2650b | Iustin Pop | @param disk: the description of the disk we should
|
1466 | 10c2650b | Iustin Pop | shutdown
|
1467 | c26a6bd2 | Iustin Pop | @rtype: None
|
1468 | 10c2650b | Iustin Pop |
|
1469 | a8083063 | Iustin Pop | """
|
1470 | cacfd1fd | Iustin Pop | msgs = [] |
1471 | a8083063 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
1472 | a8083063 | Iustin Pop | if r_dev is not None: |
1473 | 3f78eef2 | Iustin Pop | r_path = r_dev.dev_path |
1474 | cacfd1fd | Iustin Pop | try:
|
1475 | 746f7476 | Iustin Pop | r_dev.Shutdown() |
1476 | 746f7476 | Iustin Pop | DevCacheManager.RemoveCache(r_path) |
1477 | cacfd1fd | Iustin Pop | except errors.BlockDeviceError, err:
|
1478 | cacfd1fd | Iustin Pop | msgs.append(str(err))
|
1479 | 746f7476 | Iustin Pop | |
1480 | a8083063 | Iustin Pop | if disk.children:
|
1481 | a8083063 | Iustin Pop | for child in disk.children: |
1482 | c26a6bd2 | Iustin Pop | try:
|
1483 | c26a6bd2 | Iustin Pop | BlockdevShutdown(child) |
1484 | c26a6bd2 | Iustin Pop | except RPCFail, err:
|
1485 | c26a6bd2 | Iustin Pop | msgs.append(str(err))
|
1486 | 746f7476 | Iustin Pop | |
1487 | c26a6bd2 | Iustin Pop | if msgs:
|
1488 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
1489 | a8083063 | Iustin Pop | |
1490 | a8083063 | Iustin Pop | |
1491 | 821d1bd1 | Iustin Pop | def BlockdevAddchildren(parent_cdev, new_cdevs): |
1492 | 153d9724 | Iustin Pop | """Extend a mirrored block device.
|
1493 | a8083063 | Iustin Pop |
|
1494 | 10c2650b | Iustin Pop | @type parent_cdev: L{objects.Disk}
|
1495 | 10c2650b | Iustin Pop | @param parent_cdev: the disk to which we should add children
|
1496 | 10c2650b | Iustin Pop | @type new_cdevs: list of L{objects.Disk}
|
1497 | 10c2650b | Iustin Pop | @param new_cdevs: the list of children which we should add
|
1498 | c26a6bd2 | Iustin Pop | @rtype: None
|
1499 | 10c2650b | Iustin Pop |
|
1500 | a8083063 | Iustin Pop | """
|
1501 | bca2e7f4 | Iustin Pop | parent_bdev = _RecursiveFindBD(parent_cdev) |
1502 | 153d9724 | Iustin Pop | if parent_bdev is None: |
1503 | 2cc6781a | Iustin Pop | _Fail("Can't find parent device '%s' in add children", parent_cdev)
|
1504 | 153d9724 | Iustin Pop | new_bdevs = [_RecursiveFindBD(disk) for disk in new_cdevs] |
1505 | 153d9724 | Iustin Pop | if new_bdevs.count(None) > 0: |
1506 | 2cc6781a | Iustin Pop | _Fail("Can't find new device(s) to add: %s:%s", new_bdevs, new_cdevs)
|
1507 | 153d9724 | Iustin Pop | parent_bdev.AddChildren(new_bdevs) |
1508 | a8083063 | Iustin Pop | |
1509 | a8083063 | Iustin Pop | |
1510 | 821d1bd1 | Iustin Pop | def BlockdevRemovechildren(parent_cdev, new_cdevs): |
1511 | 153d9724 | Iustin Pop | """Shrink a mirrored block device.
|
1512 | a8083063 | Iustin Pop |
|
1513 | 10c2650b | Iustin Pop | @type parent_cdev: L{objects.Disk}
|
1514 | 10c2650b | Iustin Pop | @param parent_cdev: the disk from which we should remove children
|
1515 | 10c2650b | Iustin Pop | @type new_cdevs: list of L{objects.Disk}
|
1516 | 10c2650b | Iustin Pop | @param new_cdevs: the list of children which we should remove
|
1517 | c26a6bd2 | Iustin Pop | @rtype: None
|
1518 | 10c2650b | Iustin Pop |
|
1519 | a8083063 | Iustin Pop | """
|
1520 | 153d9724 | Iustin Pop | parent_bdev = _RecursiveFindBD(parent_cdev) |
1521 | 153d9724 | Iustin Pop | if parent_bdev is None: |
1522 | 2cc6781a | Iustin Pop | _Fail("Can't find parent device '%s' in remove children", parent_cdev)
|
1523 | e739bd57 | Iustin Pop | devs = [] |
1524 | e739bd57 | Iustin Pop | for disk in new_cdevs: |
1525 | e739bd57 | Iustin Pop | rpath = disk.StaticDevPath() |
1526 | e739bd57 | Iustin Pop | if rpath is None: |
1527 | e739bd57 | Iustin Pop | bd = _RecursiveFindBD(disk) |
1528 | e739bd57 | Iustin Pop | if bd is None: |
1529 | 2cc6781a | Iustin Pop | _Fail("Can't find device %s while removing children", disk)
|
1530 | e739bd57 | Iustin Pop | else:
|
1531 | e739bd57 | Iustin Pop | devs.append(bd.dev_path) |
1532 | e739bd57 | Iustin Pop | else:
|
1533 | e51db2a6 | Iustin Pop | if not utils.IsNormAbsPath(rpath): |
1534 | e51db2a6 | Iustin Pop | _Fail("Strange path returned from StaticDevPath: '%s'", rpath)
|
1535 | e739bd57 | Iustin Pop | devs.append(rpath) |
1536 | e739bd57 | Iustin Pop | parent_bdev.RemoveChildren(devs) |
1537 | a8083063 | Iustin Pop | |
1538 | a8083063 | Iustin Pop | |
1539 | 821d1bd1 | Iustin Pop | def BlockdevGetmirrorstatus(disks): |
1540 | a8083063 | Iustin Pop | """Get the mirroring status of a list of devices.
|
1541 | a8083063 | Iustin Pop |
|
1542 | 10c2650b | Iustin Pop | @type disks: list of L{objects.Disk}
|
1543 | 10c2650b | Iustin Pop | @param disks: the list of disks which we should query
|
1544 | 10c2650b | Iustin Pop | @rtype: disk
|
1545 | c6a9dffa | Michael Hanselmann | @return: List of L{objects.BlockDevStatus}, one for each disk
|
1546 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: if any of the disks cannot be
|
1547 | 10c2650b | Iustin Pop | found
|
1548 | a8083063 | Iustin Pop |
|
1549 | a8083063 | Iustin Pop | """
|
1550 | a8083063 | Iustin Pop | stats = [] |
1551 | a8083063 | Iustin Pop | for dsk in disks: |
1552 | a8083063 | Iustin Pop | rbd = _RecursiveFindBD(dsk) |
1553 | a8083063 | Iustin Pop | if rbd is None: |
1554 | 3efa9051 | Iustin Pop | _Fail("Can't find device %s", dsk)
|
1555 | 96acbc09 | Michael Hanselmann | |
1556 | 36145b12 | Michael Hanselmann | stats.append(rbd.CombinedSyncStatus()) |
1557 | 96acbc09 | Michael Hanselmann | |
1558 | c26a6bd2 | Iustin Pop | return stats
|
1559 | a8083063 | Iustin Pop | |
1560 | a8083063 | Iustin Pop | |
1561 | c6a9dffa | Michael Hanselmann | def BlockdevGetmirrorstatusMulti(disks): |
1562 | c6a9dffa | Michael Hanselmann | """Get the mirroring status of a list of devices.
|
1563 | c6a9dffa | Michael Hanselmann |
|
1564 | c6a9dffa | Michael Hanselmann | @type disks: list of L{objects.Disk}
|
1565 | c6a9dffa | Michael Hanselmann | @param disks: the list of disks which we should query
|
1566 | c6a9dffa | Michael Hanselmann | @rtype: disk
|
1567 | c6a9dffa | Michael Hanselmann | @return: List of tuples, (bool, status), one for each disk; bool denotes
|
1568 | c6a9dffa | Michael Hanselmann | success/failure, status is L{objects.BlockDevStatus} on success, string
|
1569 | c6a9dffa | Michael Hanselmann | otherwise
|
1570 | c6a9dffa | Michael Hanselmann |
|
1571 | c6a9dffa | Michael Hanselmann | """
|
1572 | c6a9dffa | Michael Hanselmann | result = [] |
1573 | c6a9dffa | Michael Hanselmann | for disk in disks: |
1574 | c6a9dffa | Michael Hanselmann | try:
|
1575 | c6a9dffa | Michael Hanselmann | rbd = _RecursiveFindBD(disk) |
1576 | c6a9dffa | Michael Hanselmann | if rbd is None: |
1577 | c6a9dffa | Michael Hanselmann | result.append((False, "Can't find device %s" % disk)) |
1578 | c6a9dffa | Michael Hanselmann | continue
|
1579 | c6a9dffa | Michael Hanselmann | |
1580 | c6a9dffa | Michael Hanselmann | status = rbd.CombinedSyncStatus() |
1581 | c6a9dffa | Michael Hanselmann | except errors.BlockDeviceError, err:
|
1582 | c6a9dffa | Michael Hanselmann | logging.exception("Error while getting disk status")
|
1583 | c6a9dffa | Michael Hanselmann | result.append((False, str(err))) |
1584 | c6a9dffa | Michael Hanselmann | else:
|
1585 | c6a9dffa | Michael Hanselmann | result.append((True, status))
|
1586 | c6a9dffa | Michael Hanselmann | |
1587 | c6a9dffa | Michael Hanselmann | assert len(disks) == len(result) |
1588 | c6a9dffa | Michael Hanselmann | |
1589 | c6a9dffa | Michael Hanselmann | return result
|
1590 | c6a9dffa | Michael Hanselmann | |
1591 | c6a9dffa | Michael Hanselmann | |
1592 | bca2e7f4 | Iustin Pop | def _RecursiveFindBD(disk): |
1593 | a8083063 | Iustin Pop | """Check if a device is activated.
|
1594 | a8083063 | Iustin Pop |
|
1595 | 5bbd3f7f | Michael Hanselmann | If so, return information about the real device.
|
1596 | a8083063 | Iustin Pop |
|
1597 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1598 | 10c2650b | Iustin Pop | @param disk: the disk object we need to find
|
1599 | a8083063 | Iustin Pop |
|
1600 | 10c2650b | Iustin Pop | @return: None if the device can't be found,
|
1601 | 10c2650b | Iustin Pop | otherwise the device instance
|
1602 | a8083063 | Iustin Pop |
|
1603 | a8083063 | Iustin Pop | """
|
1604 | a8083063 | Iustin Pop | children = [] |
1605 | a8083063 | Iustin Pop | if disk.children:
|
1606 | a8083063 | Iustin Pop | for chdisk in disk.children: |
1607 | a8083063 | Iustin Pop | children.append(_RecursiveFindBD(chdisk)) |
1608 | a8083063 | Iustin Pop | |
1609 | 464f8daf | Iustin Pop | return bdev.FindDevice(disk.dev_type, disk.physical_id, children, disk.size)
|
1610 | a8083063 | Iustin Pop | |
1611 | a8083063 | Iustin Pop | |
1612 | f2e07bb4 | Michael Hanselmann | def _OpenRealBD(disk): |
1613 | f2e07bb4 | Michael Hanselmann | """Opens the underlying block device of a disk.
|
1614 | f2e07bb4 | Michael Hanselmann |
|
1615 | f2e07bb4 | Michael Hanselmann | @type disk: L{objects.Disk}
|
1616 | f2e07bb4 | Michael Hanselmann | @param disk: the disk object we want to open
|
1617 | f2e07bb4 | Michael Hanselmann |
|
1618 | f2e07bb4 | Michael Hanselmann | """
|
1619 | f2e07bb4 | Michael Hanselmann | real_disk = _RecursiveFindBD(disk) |
1620 | f2e07bb4 | Michael Hanselmann | if real_disk is None: |
1621 | f2e07bb4 | Michael Hanselmann | _Fail("Block device '%s' is not set up", disk)
|
1622 | f2e07bb4 | Michael Hanselmann | |
1623 | f2e07bb4 | Michael Hanselmann | real_disk.Open() |
1624 | f2e07bb4 | Michael Hanselmann | |
1625 | f2e07bb4 | Michael Hanselmann | return real_disk
|
1626 | f2e07bb4 | Michael Hanselmann | |
1627 | f2e07bb4 | Michael Hanselmann | |
1628 | 821d1bd1 | Iustin Pop | def BlockdevFind(disk): |
1629 | a8083063 | Iustin Pop | """Check if a device is activated.
|
1630 | a8083063 | Iustin Pop |
|
1631 | 5bbd3f7f | Michael Hanselmann | If it is, return information about the real device.
|
1632 | a8083063 | Iustin Pop |
|
1633 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1634 | 10c2650b | Iustin Pop | @param disk: the disk to find
|
1635 | 96acbc09 | Michael Hanselmann | @rtype: None or objects.BlockDevStatus
|
1636 | 96acbc09 | Michael Hanselmann | @return: None if the disk cannot be found, otherwise a the current
|
1637 | 96acbc09 | Michael Hanselmann | information
|
1638 | a8083063 | Iustin Pop |
|
1639 | a8083063 | Iustin Pop | """
|
1640 | 23829f6f | Iustin Pop | try:
|
1641 | 23829f6f | Iustin Pop | rbd = _RecursiveFindBD(disk) |
1642 | 23829f6f | Iustin Pop | except errors.BlockDeviceError, err:
|
1643 | 2cc6781a | Iustin Pop | _Fail("Failed to find device: %s", err, exc=True) |
1644 | 96acbc09 | Michael Hanselmann | |
1645 | a8083063 | Iustin Pop | if rbd is None: |
1646 | c26a6bd2 | Iustin Pop | return None |
1647 | 96acbc09 | Michael Hanselmann | |
1648 | 96acbc09 | Michael Hanselmann | return rbd.GetSyncStatus()
|
1649 | a8083063 | Iustin Pop | |
1650 | a8083063 | Iustin Pop | |
1651 | 968a7623 | Iustin Pop | def BlockdevGetsize(disks): |
1652 | 968a7623 | Iustin Pop | """Computes the size of the given disks.
|
1653 | 968a7623 | Iustin Pop |
|
1654 | 968a7623 | Iustin Pop | If a disk is not found, returns None instead.
|
1655 | 968a7623 | Iustin Pop |
|
1656 | 968a7623 | Iustin Pop | @type disks: list of L{objects.Disk}
|
1657 | 968a7623 | Iustin Pop | @param disks: the list of disk to compute the size for
|
1658 | 968a7623 | Iustin Pop | @rtype: list
|
1659 | 968a7623 | Iustin Pop | @return: list with elements None if the disk cannot be found,
|
1660 | 968a7623 | Iustin Pop | otherwise the size
|
1661 | 968a7623 | Iustin Pop |
|
1662 | 968a7623 | Iustin Pop | """
|
1663 | 968a7623 | Iustin Pop | result = [] |
1664 | 968a7623 | Iustin Pop | for cf in disks: |
1665 | 968a7623 | Iustin Pop | try:
|
1666 | 968a7623 | Iustin Pop | rbd = _RecursiveFindBD(cf) |
1667 | 1122eb25 | Iustin Pop | except errors.BlockDeviceError:
|
1668 | 968a7623 | Iustin Pop | result.append(None)
|
1669 | 968a7623 | Iustin Pop | continue
|
1670 | 968a7623 | Iustin Pop | if rbd is None: |
1671 | 968a7623 | Iustin Pop | result.append(None)
|
1672 | 968a7623 | Iustin Pop | else:
|
1673 | 968a7623 | Iustin Pop | result.append(rbd.GetActualSize()) |
1674 | 968a7623 | Iustin Pop | return result
|
1675 | 968a7623 | Iustin Pop | |
1676 | 968a7623 | Iustin Pop | |
1677 | 858f3d18 | Iustin Pop | def BlockdevExport(disk, dest_node, dest_path, cluster_name): |
1678 | 858f3d18 | Iustin Pop | """Export a block device to a remote node.
|
1679 | 858f3d18 | Iustin Pop |
|
1680 | 858f3d18 | Iustin Pop | @type disk: L{objects.Disk}
|
1681 | 858f3d18 | Iustin Pop | @param disk: the description of the disk to export
|
1682 | 858f3d18 | Iustin Pop | @type dest_node: str
|
1683 | 858f3d18 | Iustin Pop | @param dest_node: the destination node to export to
|
1684 | 858f3d18 | Iustin Pop | @type dest_path: str
|
1685 | 858f3d18 | Iustin Pop | @param dest_path: the destination path on the target node
|
1686 | 858f3d18 | Iustin Pop | @type cluster_name: str
|
1687 | 858f3d18 | Iustin Pop | @param cluster_name: the cluster name, needed for SSH hostalias
|
1688 | 858f3d18 | Iustin Pop | @rtype: None
|
1689 | 858f3d18 | Iustin Pop |
|
1690 | 858f3d18 | Iustin Pop | """
|
1691 | f2e07bb4 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
1692 | 858f3d18 | Iustin Pop | |
1693 | 858f3d18 | Iustin Pop | # the block size on the read dd is 1MiB to match our units
|
1694 | 858f3d18 | Iustin Pop | expcmd = utils.BuildShellCmd("set -e; set -o pipefail; "
|
1695 | 858f3d18 | Iustin Pop | "dd if=%s bs=1048576 count=%s",
|
1696 | 858f3d18 | Iustin Pop | real_disk.dev_path, str(disk.size))
|
1697 | 858f3d18 | Iustin Pop | |
1698 | 858f3d18 | Iustin Pop | # we set here a smaller block size as, due to ssh buffering, more
|
1699 | 858f3d18 | Iustin Pop | # than 64-128k will mostly ignored; we use nocreat to fail if the
|
1700 | 858f3d18 | Iustin Pop | # device is not already there or we pass a wrong path; we use
|
1701 | 858f3d18 | Iustin Pop | # notrunc to no attempt truncate on an LV device; we use oflag=dsync
|
1702 | 858f3d18 | Iustin Pop | # to not buffer too much memory; this means that at best, we flush
|
1703 | 858f3d18 | Iustin Pop | # every 64k, which will not be very fast
|
1704 | 858f3d18 | Iustin Pop | destcmd = utils.BuildShellCmd("dd of=%s conv=nocreat,notrunc bs=65536"
|
1705 | 858f3d18 | Iustin Pop | " oflag=dsync", dest_path)
|
1706 | 858f3d18 | Iustin Pop | |
1707 | 858f3d18 | Iustin Pop | remotecmd = _GetSshRunner(cluster_name).BuildCmd(dest_node, |
1708 | 858f3d18 | Iustin Pop | constants.GANETI_RUNAS, |
1709 | 858f3d18 | Iustin Pop | destcmd) |
1710 | 858f3d18 | Iustin Pop | |
1711 | 858f3d18 | Iustin Pop | # all commands have been checked, so we're safe to combine them
|
1712 | 858f3d18 | Iustin Pop | command = '|'.join([expcmd, utils.ShellQuoteArgs(remotecmd)])
|
1713 | 858f3d18 | Iustin Pop | |
1714 | 858f3d18 | Iustin Pop | result = utils.RunCmd(["bash", "-c", command]) |
1715 | 858f3d18 | Iustin Pop | |
1716 | 858f3d18 | Iustin Pop | if result.failed:
|
1717 | 858f3d18 | Iustin Pop | _Fail("Disk copy command '%s' returned error: %s"
|
1718 | 858f3d18 | Iustin Pop | " output: %s", command, result.fail_reason, result.output)
|
1719 | 858f3d18 | Iustin Pop | |
1720 | 858f3d18 | Iustin Pop | |
1721 | a8083063 | Iustin Pop | def UploadFile(file_name, data, mode, uid, gid, atime, mtime): |
1722 | a8083063 | Iustin Pop | """Write a file to the filesystem.
|
1723 | a8083063 | Iustin Pop |
|
1724 | a8083063 | Iustin Pop | This allows the master to overwrite(!) a file. It will only perform
|
1725 | a8083063 | Iustin Pop | the operation if the file belongs to a list of configuration files.
|
1726 | a8083063 | Iustin Pop |
|
1727 | 10c2650b | Iustin Pop | @type file_name: str
|
1728 | 10c2650b | Iustin Pop | @param file_name: the target file name
|
1729 | 10c2650b | Iustin Pop | @type data: str
|
1730 | 10c2650b | Iustin Pop | @param data: the new contents of the file
|
1731 | 10c2650b | Iustin Pop | @type mode: int
|
1732 | 10c2650b | Iustin Pop | @param mode: the mode to give the file (can be None)
|
1733 | 10c2650b | Iustin Pop | @type uid: int
|
1734 | 10c2650b | Iustin Pop | @param uid: the owner of the file (can be -1 for default)
|
1735 | 10c2650b | Iustin Pop | @type gid: int
|
1736 | 10c2650b | Iustin Pop | @param gid: the group of the file (can be -1 for default)
|
1737 | 10c2650b | Iustin Pop | @type atime: float
|
1738 | 10c2650b | Iustin Pop | @param atime: the atime to set on the file (can be None)
|
1739 | 10c2650b | Iustin Pop | @type mtime: float
|
1740 | 10c2650b | Iustin Pop | @param mtime: the mtime to set on the file (can be None)
|
1741 | c26a6bd2 | Iustin Pop | @rtype: None
|
1742 | 10c2650b | Iustin Pop |
|
1743 | a8083063 | Iustin Pop | """
|
1744 | a8083063 | Iustin Pop | if not os.path.isabs(file_name): |
1745 | 2cc6781a | Iustin Pop | _Fail("Filename passed to UploadFile is not absolute: '%s'", file_name)
|
1746 | a8083063 | Iustin Pop | |
1747 | 360b0dc2 | Iustin Pop | if file_name not in _ALLOWED_UPLOAD_FILES: |
1748 | 2cc6781a | Iustin Pop | _Fail("Filename passed to UploadFile not in allowed upload targets: '%s'",
|
1749 | 2cc6781a | Iustin Pop | file_name) |
1750 | a8083063 | Iustin Pop | |
1751 | 12bce260 | Michael Hanselmann | raw_data = _Decompress(data) |
1752 | 12bce260 | Michael Hanselmann | |
1753 | 8f065ae2 | Iustin Pop | utils.SafeWriteFile(file_name, None,
|
1754 | 8f065ae2 | Iustin Pop | data=raw_data, mode=mode, uid=uid, gid=gid, |
1755 | 8f065ae2 | Iustin Pop | atime=atime, mtime=mtime) |
1756 | a8083063 | Iustin Pop | |
1757 | 386b57af | Iustin Pop | |
1758 | b2f29800 | René Nussbaumer | def RunOob(oob_program, command, node, timeout): |
1759 | b2f29800 | René Nussbaumer | """Executes oob_program with given command on given node.
|
1760 | b2f29800 | René Nussbaumer |
|
1761 | b2f29800 | René Nussbaumer | @param oob_program: The path to the executable oob_program
|
1762 | b2f29800 | René Nussbaumer | @param command: The command to invoke on oob_program
|
1763 | b2f29800 | René Nussbaumer | @param node: The node given as an argument to the program
|
1764 | b2f29800 | René Nussbaumer | @param timeout: Timeout after which we kill the oob program
|
1765 | b2f29800 | René Nussbaumer |
|
1766 | b2f29800 | René Nussbaumer | @return: stdout
|
1767 | b2f29800 | René Nussbaumer | @raise RPCFail: If execution fails for some reason
|
1768 | b2f29800 | René Nussbaumer |
|
1769 | b2f29800 | René Nussbaumer | """
|
1770 | b2f29800 | René Nussbaumer | result = utils.RunCmd([oob_program, command, node], timeout=timeout) |
1771 | b2f29800 | René Nussbaumer | |
1772 | b2f29800 | René Nussbaumer | if result.failed:
|
1773 | b2f29800 | René Nussbaumer | _Fail("'%s' failed with reason '%s'; output: %s", result.cmd,
|
1774 | b2f29800 | René Nussbaumer | result.fail_reason, result.output) |
1775 | b2f29800 | René Nussbaumer | |
1776 | b2f29800 | René Nussbaumer | return result.stdout
|
1777 | b2f29800 | René Nussbaumer | |
1778 | b2f29800 | René Nussbaumer | |
1779 | 03d1dba2 | Michael Hanselmann | def WriteSsconfFiles(values): |
1780 | 89b14f05 | Iustin Pop | """Update all ssconf files.
|
1781 | 89b14f05 | Iustin Pop |
|
1782 | 89b14f05 | Iustin Pop | Wrapper around the SimpleStore.WriteFiles.
|
1783 | 89b14f05 | Iustin Pop |
|
1784 | 89b14f05 | Iustin Pop | """
|
1785 | 89b14f05 | Iustin Pop | ssconf.SimpleStore().WriteFiles(values) |
1786 | 6ddc95ec | Michael Hanselmann | |
1787 | 6ddc95ec | Michael Hanselmann | |
1788 | a8083063 | Iustin Pop | def _ErrnoOrStr(err): |
1789 | a8083063 | Iustin Pop | """Format an EnvironmentError exception.
|
1790 | a8083063 | Iustin Pop |
|
1791 | 10c2650b | Iustin Pop | If the L{err} argument has an errno attribute, it will be looked up
|
1792 | 10c2650b | Iustin Pop | and converted into a textual C{E...} description. Otherwise the
|
1793 | 10c2650b | Iustin Pop | string representation of the error will be returned.
|
1794 | 10c2650b | Iustin Pop |
|
1795 | 10c2650b | Iustin Pop | @type err: L{EnvironmentError}
|
1796 | 10c2650b | Iustin Pop | @param err: the exception to format
|
1797 | a8083063 | Iustin Pop |
|
1798 | a8083063 | Iustin Pop | """
|
1799 | a8083063 | Iustin Pop | if hasattr(err, 'errno'): |
1800 | a8083063 | Iustin Pop | detail = errno.errorcode[err.errno] |
1801 | a8083063 | Iustin Pop | else:
|
1802 | a8083063 | Iustin Pop | detail = str(err)
|
1803 | a8083063 | Iustin Pop | return detail
|
1804 | a8083063 | Iustin Pop | |
1805 | 5d0fe286 | Iustin Pop | |
1806 | c19f9810 | Iustin Pop | def _OSOndiskAPIVersion(os_dir): |
1807 | 2f8598a5 | Alexander Schreiber | """Compute and return the API version of a given OS.
|
1808 | a8083063 | Iustin Pop |
|
1809 | c19f9810 | Iustin Pop | This function will try to read the API version of the OS residing in
|
1810 | c19f9810 | Iustin Pop | the 'os_dir' directory.
|
1811 | 7c3d51d4 | Guido Trotter |
|
1812 | 10c2650b | Iustin Pop | @type os_dir: str
|
1813 | c19f9810 | Iustin Pop | @param os_dir: the directory in which we should look for the OS
|
1814 | 8e70b181 | Iustin Pop | @rtype: tuple
|
1815 | 8e70b181 | Iustin Pop | @return: tuple (status, data) with status denoting the validity and
|
1816 | 8e70b181 | Iustin Pop | data holding either the vaid versions or an error message
|
1817 | a8083063 | Iustin Pop |
|
1818 | a8083063 | Iustin Pop | """
|
1819 | e02b9114 | Iustin Pop | api_file = utils.PathJoin(os_dir, constants.OS_API_FILE) |
1820 | a8083063 | Iustin Pop | |
1821 | a8083063 | Iustin Pop | try:
|
1822 | a8083063 | Iustin Pop | st = os.stat(api_file) |
1823 | a8083063 | Iustin Pop | except EnvironmentError, err: |
1824 | b6b45e0d | Guido Trotter | return False, ("Required file '%s' not found under path %s: %s" % |
1825 | b6b45e0d | Guido Trotter | (constants.OS_API_FILE, os_dir, _ErrnoOrStr(err))) |
1826 | a8083063 | Iustin Pop | |
1827 | a8083063 | Iustin Pop | if not stat.S_ISREG(stat.S_IFMT(st.st_mode)): |
1828 | b6b45e0d | Guido Trotter | return False, ("File '%s' in %s is not a regular file" % |
1829 | b6b45e0d | Guido Trotter | (constants.OS_API_FILE, os_dir)) |
1830 | a8083063 | Iustin Pop | |
1831 | a8083063 | Iustin Pop | try:
|
1832 | 3374afa9 | Guido Trotter | api_versions = utils.ReadFile(api_file).splitlines() |
1833 | a8083063 | Iustin Pop | except EnvironmentError, err: |
1834 | 255dcebd | Iustin Pop | return False, ("Error while reading the API version file at %s: %s" % |
1835 | 255dcebd | Iustin Pop | (api_file, _ErrnoOrStr(err))) |
1836 | a8083063 | Iustin Pop | |
1837 | a8083063 | Iustin Pop | try:
|
1838 | 63b9b186 | Guido Trotter | api_versions = [int(version.strip()) for version in api_versions] |
1839 | a8083063 | Iustin Pop | except (TypeError, ValueError), err: |
1840 | 255dcebd | Iustin Pop | return False, ("API version(s) can't be converted to integer: %s" % |
1841 | 255dcebd | Iustin Pop | str(err))
|
1842 | a8083063 | Iustin Pop | |
1843 | 255dcebd | Iustin Pop | return True, api_versions |
1844 | a8083063 | Iustin Pop | |
1845 | 386b57af | Iustin Pop | |
1846 | 7c3d51d4 | Guido Trotter | def DiagnoseOS(top_dirs=None): |
1847 | a8083063 | Iustin Pop | """Compute the validity for all OSes.
|
1848 | a8083063 | Iustin Pop |
|
1849 | 10c2650b | Iustin Pop | @type top_dirs: list
|
1850 | 10c2650b | Iustin Pop | @param top_dirs: the list of directories in which to
|
1851 | 10c2650b | Iustin Pop | search (if not given defaults to
|
1852 | 10c2650b | Iustin Pop | L{constants.OS_SEARCH_PATH})
|
1853 | 10c2650b | Iustin Pop | @rtype: list of L{objects.OS}
|
1854 | bad78e66 | Iustin Pop | @return: a list of tuples (name, path, status, diagnose, variants,
|
1855 | bad78e66 | Iustin Pop | parameters, api_version) for all (potential) OSes under all
|
1856 | bad78e66 | Iustin Pop | search paths, where:
|
1857 | 255dcebd | Iustin Pop | - name is the (potential) OS name
|
1858 | 255dcebd | Iustin Pop | - path is the full path to the OS
|
1859 | 255dcebd | Iustin Pop | - status True/False is the validity of the OS
|
1860 | 255dcebd | Iustin Pop | - diagnose is the error message for an invalid OS, otherwise empty
|
1861 | ba00557a | Guido Trotter | - variants is a list of supported OS variants, if any
|
1862 | c7d04a6b | Iustin Pop | - parameters is a list of (name, help) parameters, if any
|
1863 | bad78e66 | Iustin Pop | - api_version is a list of support OS API versions
|
1864 | a8083063 | Iustin Pop |
|
1865 | a8083063 | Iustin Pop | """
|
1866 | 7c3d51d4 | Guido Trotter | if top_dirs is None: |
1867 | 7c3d51d4 | Guido Trotter | top_dirs = constants.OS_SEARCH_PATH |
1868 | a8083063 | Iustin Pop | |
1869 | a8083063 | Iustin Pop | result = [] |
1870 | 65fe4693 | Iustin Pop | for dir_name in top_dirs: |
1871 | 65fe4693 | Iustin Pop | if os.path.isdir(dir_name):
|
1872 | 7c3d51d4 | Guido Trotter | try:
|
1873 | 65fe4693 | Iustin Pop | f_names = utils.ListVisibleFiles(dir_name) |
1874 | 7c3d51d4 | Guido Trotter | except EnvironmentError, err: |
1875 | 29921401 | Iustin Pop | logging.exception("Can't list the OS directory %s: %s", dir_name, err)
|
1876 | 7c3d51d4 | Guido Trotter | break
|
1877 | 7c3d51d4 | Guido Trotter | for name in f_names: |
1878 | e02b9114 | Iustin Pop | os_path = utils.PathJoin(dir_name, name) |
1879 | 255dcebd | Iustin Pop | status, os_inst = _TryOSFromDisk(name, base_dir=dir_name) |
1880 | 255dcebd | Iustin Pop | if status:
|
1881 | 255dcebd | Iustin Pop | diagnose = ""
|
1882 | ba00557a | Guido Trotter | variants = os_inst.supported_variants |
1883 | c7d04a6b | Iustin Pop | parameters = os_inst.supported_parameters |
1884 | bad78e66 | Iustin Pop | api_versions = os_inst.api_versions |
1885 | 255dcebd | Iustin Pop | else:
|
1886 | 255dcebd | Iustin Pop | diagnose = os_inst |
1887 | bad78e66 | Iustin Pop | variants = parameters = api_versions = [] |
1888 | bad78e66 | Iustin Pop | result.append((name, os_path, status, diagnose, variants, |
1889 | bad78e66 | Iustin Pop | parameters, api_versions)) |
1890 | a8083063 | Iustin Pop | |
1891 | c26a6bd2 | Iustin Pop | return result
|
1892 | a8083063 | Iustin Pop | |
1893 | a8083063 | Iustin Pop | |
1894 | 255dcebd | Iustin Pop | def _TryOSFromDisk(name, base_dir=None): |
1895 | a8083063 | Iustin Pop | """Create an OS instance from disk.
|
1896 | a8083063 | Iustin Pop |
|
1897 | a8083063 | Iustin Pop | This function will return an OS instance if the given name is a
|
1898 | 8e70b181 | Iustin Pop | valid OS name.
|
1899 | a8083063 | Iustin Pop |
|
1900 | 8ee4dc80 | Guido Trotter | @type base_dir: string
|
1901 | 8ee4dc80 | Guido Trotter | @keyword base_dir: Base directory containing OS installations.
|
1902 | 8ee4dc80 | Guido Trotter | Defaults to a search in all the OS_SEARCH_PATH dirs.
|
1903 | 255dcebd | Iustin Pop | @rtype: tuple
|
1904 | 255dcebd | Iustin Pop | @return: success and either the OS instance if we find a valid one,
|
1905 | 255dcebd | Iustin Pop | or error message
|
1906 | 7c3d51d4 | Guido Trotter |
|
1907 | a8083063 | Iustin Pop | """
|
1908 | 56bcd3f4 | Guido Trotter | if base_dir is None: |
1909 | 57c177af | Iustin Pop | os_dir = utils.FindFile(name, constants.OS_SEARCH_PATH, os.path.isdir) |
1910 | c34c0cfd | Iustin Pop | else:
|
1911 | f95c81bf | Iustin Pop | os_dir = utils.FindFile(name, [base_dir], os.path.isdir) |
1912 | f95c81bf | Iustin Pop | |
1913 | f95c81bf | Iustin Pop | if os_dir is None: |
1914 | 5c0433d6 | Iustin Pop | return False, "Directory for OS %s not found in search path" % name |
1915 | a8083063 | Iustin Pop | |
1916 | c19f9810 | Iustin Pop | status, api_versions = _OSOndiskAPIVersion(os_dir) |
1917 | 255dcebd | Iustin Pop | if not status: |
1918 | 255dcebd | Iustin Pop | # push the error up
|
1919 | 255dcebd | Iustin Pop | return status, api_versions
|
1920 | a8083063 | Iustin Pop | |
1921 | d1a7d66f | Guido Trotter | if not constants.OS_API_VERSIONS.intersection(api_versions): |
1922 | 255dcebd | Iustin Pop | return False, ("API version mismatch for path '%s': found %s, want %s." % |
1923 | d1a7d66f | Guido Trotter | (os_dir, api_versions, constants.OS_API_VERSIONS)) |
1924 | a8083063 | Iustin Pop | |
1925 | 41ba4061 | Guido Trotter | # OS Files dictionary, we will populate it with the absolute path names
|
1926 | 41ba4061 | Guido Trotter | os_files = dict.fromkeys(constants.OS_SCRIPTS)
|
1927 | a8083063 | Iustin Pop | |
1928 | 95075fba | Guido Trotter | if max(api_versions) >= constants.OS_API_V15: |
1929 | 95075fba | Guido Trotter | os_files[constants.OS_VARIANTS_FILE] = ''
|
1930 | 95075fba | Guido Trotter | |
1931 | c7d04a6b | Iustin Pop | if max(api_versions) >= constants.OS_API_V20: |
1932 | c7d04a6b | Iustin Pop | os_files[constants.OS_PARAMETERS_FILE] = ''
|
1933 | c7d04a6b | Iustin Pop | else:
|
1934 | c7d04a6b | Iustin Pop | del os_files[constants.OS_SCRIPT_VERIFY]
|
1935 | c7d04a6b | Iustin Pop | |
1936 | ea79fc15 | Michael Hanselmann | for filename in os_files: |
1937 | e02b9114 | Iustin Pop | os_files[filename] = utils.PathJoin(os_dir, filename) |
1938 | a8083063 | Iustin Pop | |
1939 | a8083063 | Iustin Pop | try:
|
1940 | ea79fc15 | Michael Hanselmann | st = os.stat(os_files[filename]) |
1941 | a8083063 | Iustin Pop | except EnvironmentError, err: |
1942 | 41ba4061 | Guido Trotter | return False, ("File '%s' under path '%s' is missing (%s)" % |
1943 | ea79fc15 | Michael Hanselmann | (filename, os_dir, _ErrnoOrStr(err))) |
1944 | a8083063 | Iustin Pop | |
1945 | a8083063 | Iustin Pop | if not stat.S_ISREG(stat.S_IFMT(st.st_mode)): |
1946 | 41ba4061 | Guido Trotter | return False, ("File '%s' under path '%s' is not a regular file" % |
1947 | ea79fc15 | Michael Hanselmann | (filename, os_dir)) |
1948 | 255dcebd | Iustin Pop | |
1949 | ea79fc15 | Michael Hanselmann | if filename in constants.OS_SCRIPTS: |
1950 | 0757c107 | Guido Trotter | if stat.S_IMODE(st.st_mode) & stat.S_IXUSR != stat.S_IXUSR:
|
1951 | 0757c107 | Guido Trotter | return False, ("File '%s' under path '%s' is not executable" % |
1952 | ea79fc15 | Michael Hanselmann | (filename, os_dir)) |
1953 | 0757c107 | Guido Trotter | |
1954 | 845da3e8 | Iustin Pop | variants = [] |
1955 | 95075fba | Guido Trotter | if constants.OS_VARIANTS_FILE in os_files: |
1956 | 95075fba | Guido Trotter | variants_file = os_files[constants.OS_VARIANTS_FILE] |
1957 | 95075fba | Guido Trotter | try:
|
1958 | 95075fba | Guido Trotter | variants = utils.ReadFile(variants_file).splitlines() |
1959 | 95075fba | Guido Trotter | except EnvironmentError, err: |
1960 | 95075fba | Guido Trotter | return False, ("Error while reading the OS variants file at %s: %s" % |
1961 | 95075fba | Guido Trotter | (variants_file, _ErrnoOrStr(err))) |
1962 | 95075fba | Guido Trotter | if not variants: |
1963 | 95075fba | Guido Trotter | return False, ("No supported os variant found") |
1964 | 0757c107 | Guido Trotter | |
1965 | c7d04a6b | Iustin Pop | parameters = [] |
1966 | c7d04a6b | Iustin Pop | if constants.OS_PARAMETERS_FILE in os_files: |
1967 | c7d04a6b | Iustin Pop | parameters_file = os_files[constants.OS_PARAMETERS_FILE] |
1968 | c7d04a6b | Iustin Pop | try:
|
1969 | c7d04a6b | Iustin Pop | parameters = utils.ReadFile(parameters_file).splitlines() |
1970 | c7d04a6b | Iustin Pop | except EnvironmentError, err: |
1971 | c7d04a6b | Iustin Pop | return False, ("Error while reading the OS parameters file at %s: %s" % |
1972 | c7d04a6b | Iustin Pop | (parameters_file, _ErrnoOrStr(err))) |
1973 | c7d04a6b | Iustin Pop | parameters = [v.split(None, 1) for v in parameters] |
1974 | c7d04a6b | Iustin Pop | |
1975 | 8e70b181 | Iustin Pop | os_obj = objects.OS(name=name, path=os_dir, |
1976 | 41ba4061 | Guido Trotter | create_script=os_files[constants.OS_SCRIPT_CREATE], |
1977 | 41ba4061 | Guido Trotter | export_script=os_files[constants.OS_SCRIPT_EXPORT], |
1978 | 41ba4061 | Guido Trotter | import_script=os_files[constants.OS_SCRIPT_IMPORT], |
1979 | 41ba4061 | Guido Trotter | rename_script=os_files[constants.OS_SCRIPT_RENAME], |
1980 | 40684c3a | Iustin Pop | verify_script=os_files.get(constants.OS_SCRIPT_VERIFY, |
1981 | 40684c3a | Iustin Pop | None),
|
1982 | 95075fba | Guido Trotter | supported_variants=variants, |
1983 | c7d04a6b | Iustin Pop | supported_parameters=parameters, |
1984 | 255dcebd | Iustin Pop | api_versions=api_versions) |
1985 | 255dcebd | Iustin Pop | return True, os_obj |
1986 | 255dcebd | Iustin Pop | |
1987 | 255dcebd | Iustin Pop | |
1988 | 255dcebd | Iustin Pop | def OSFromDisk(name, base_dir=None): |
1989 | 255dcebd | Iustin Pop | """Create an OS instance from disk.
|
1990 | 255dcebd | Iustin Pop |
|
1991 | 255dcebd | Iustin Pop | This function will return an OS instance if the given name is a
|
1992 | 255dcebd | Iustin Pop | valid OS name. Otherwise, it will raise an appropriate
|
1993 | 255dcebd | Iustin Pop | L{RPCFail} exception, detailing why this is not a valid OS.
|
1994 | 255dcebd | Iustin Pop |
|
1995 | 255dcebd | Iustin Pop | This is just a wrapper over L{_TryOSFromDisk}, which doesn't raise
|
1996 | 255dcebd | Iustin Pop | an exception but returns true/false status data.
|
1997 | 255dcebd | Iustin Pop |
|
1998 | 255dcebd | Iustin Pop | @type base_dir: string
|
1999 | 255dcebd | Iustin Pop | @keyword base_dir: Base directory containing OS installations.
|
2000 | 255dcebd | Iustin Pop | Defaults to a search in all the OS_SEARCH_PATH dirs.
|
2001 | 255dcebd | Iustin Pop | @rtype: L{objects.OS}
|
2002 | 255dcebd | Iustin Pop | @return: the OS instance if we find a valid one
|
2003 | 255dcebd | Iustin Pop | @raise RPCFail: if we don't find a valid OS
|
2004 | 255dcebd | Iustin Pop |
|
2005 | 255dcebd | Iustin Pop | """
|
2006 | 870dc44c | Iustin Pop | name_only = objects.OS.GetName(name) |
2007 | 6ee7102a | Guido Trotter | status, payload = _TryOSFromDisk(name_only, base_dir) |
2008 | 255dcebd | Iustin Pop | |
2009 | 255dcebd | Iustin Pop | if not status: |
2010 | 255dcebd | Iustin Pop | _Fail(payload) |
2011 | a8083063 | Iustin Pop | |
2012 | 255dcebd | Iustin Pop | return payload
|
2013 | a8083063 | Iustin Pop | |
2014 | a8083063 | Iustin Pop | |
2015 | a025e535 | Vitaly Kuznetsov | def OSCoreEnv(os_name, inst_os, os_params, debug=0): |
2016 | efaa9b06 | Iustin Pop | """Calculate the basic environment for an os script.
|
2017 | 2266edb2 | Guido Trotter |
|
2018 | a025e535 | Vitaly Kuznetsov | @type os_name: str
|
2019 | a025e535 | Vitaly Kuznetsov | @param os_name: full operating system name (including variant)
|
2020 | 099c52ad | Iustin Pop | @type inst_os: L{objects.OS}
|
2021 | 099c52ad | Iustin Pop | @param inst_os: operating system for which the environment is being built
|
2022 | 1bdcbbab | Iustin Pop | @type os_params: dict
|
2023 | 1bdcbbab | Iustin Pop | @param os_params: the OS parameters
|
2024 | 2266edb2 | Guido Trotter | @type debug: integer
|
2025 | 10c2650b | Iustin Pop | @param debug: debug level (0 or 1, for OS Api 10)
|
2026 | 2266edb2 | Guido Trotter | @rtype: dict
|
2027 | 2266edb2 | Guido Trotter | @return: dict of environment variables
|
2028 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: if the block device
|
2029 | 10c2650b | Iustin Pop | cannot be found
|
2030 | 2266edb2 | Guido Trotter |
|
2031 | 2266edb2 | Guido Trotter | """
|
2032 | 2266edb2 | Guido Trotter | result = {} |
2033 | 099c52ad | Iustin Pop | api_version = \ |
2034 | 099c52ad | Iustin Pop | max(constants.OS_API_VERSIONS.intersection(inst_os.api_versions))
|
2035 | d1a7d66f | Guido Trotter | result['OS_API_VERSION'] = '%d' % api_version |
2036 | efaa9b06 | Iustin Pop | result['OS_NAME'] = inst_os.name
|
2037 | 2266edb2 | Guido Trotter | result['DEBUG_LEVEL'] = '%d' % debug |
2038 | efaa9b06 | Iustin Pop | |
2039 | efaa9b06 | Iustin Pop | # OS variants
|
2040 | f11280b5 | Guido Trotter | if api_version >= constants.OS_API_V15:
|
2041 | 870dc44c | Iustin Pop | variant = objects.OS.GetVariant(os_name) |
2042 | 870dc44c | Iustin Pop | if not variant: |
2043 | 099c52ad | Iustin Pop | variant = inst_os.supported_variants[0]
|
2044 | f11280b5 | Guido Trotter | result['OS_VARIANT'] = variant
|
2045 | efaa9b06 | Iustin Pop | |
2046 | 1bdcbbab | Iustin Pop | # OS params
|
2047 | 1bdcbbab | Iustin Pop | for pname, pvalue in os_params.items(): |
2048 | 1bdcbbab | Iustin Pop | result['OSP_%s' % pname.upper()] = pvalue
|
2049 | 1bdcbbab | Iustin Pop | |
2050 | efaa9b06 | Iustin Pop | return result
|
2051 | efaa9b06 | Iustin Pop | |
2052 | efaa9b06 | Iustin Pop | |
2053 | efaa9b06 | Iustin Pop | def OSEnvironment(instance, inst_os, debug=0): |
2054 | efaa9b06 | Iustin Pop | """Calculate the environment for an os script.
|
2055 | efaa9b06 | Iustin Pop |
|
2056 | efaa9b06 | Iustin Pop | @type instance: L{objects.Instance}
|
2057 | efaa9b06 | Iustin Pop | @param instance: target instance for the os script run
|
2058 | efaa9b06 | Iustin Pop | @type inst_os: L{objects.OS}
|
2059 | efaa9b06 | Iustin Pop | @param inst_os: operating system for which the environment is being built
|
2060 | efaa9b06 | Iustin Pop | @type debug: integer
|
2061 | efaa9b06 | Iustin Pop | @param debug: debug level (0 or 1, for OS Api 10)
|
2062 | efaa9b06 | Iustin Pop | @rtype: dict
|
2063 | efaa9b06 | Iustin Pop | @return: dict of environment variables
|
2064 | efaa9b06 | Iustin Pop | @raise errors.BlockDeviceError: if the block device
|
2065 | efaa9b06 | Iustin Pop | cannot be found
|
2066 | efaa9b06 | Iustin Pop |
|
2067 | efaa9b06 | Iustin Pop | """
|
2068 | a025e535 | Vitaly Kuznetsov | result = OSCoreEnv(instance.os, inst_os, instance.osparams, debug=debug) |
2069 | efaa9b06 | Iustin Pop | |
2070 | f2165b8a | Iustin Pop | for attr in ["name", "os", "uuid", "ctime", "mtime"]: |
2071 | f2165b8a | Iustin Pop | result["INSTANCE_%s" % attr.upper()] = str(getattr(instance, attr)) |
2072 | f2165b8a | Iustin Pop | |
2073 | efaa9b06 | Iustin Pop | result['HYPERVISOR'] = instance.hypervisor
|
2074 | efaa9b06 | Iustin Pop | result['DISK_COUNT'] = '%d' % len(instance.disks) |
2075 | efaa9b06 | Iustin Pop | result['NIC_COUNT'] = '%d' % len(instance.nics) |
2076 | efaa9b06 | Iustin Pop | |
2077 | efaa9b06 | Iustin Pop | # Disks
|
2078 | 2266edb2 | Guido Trotter | for idx, disk in enumerate(instance.disks): |
2079 | f2e07bb4 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2080 | 2266edb2 | Guido Trotter | result['DISK_%d_PATH' % idx] = real_disk.dev_path
|
2081 | 15552312 | Iustin Pop | result['DISK_%d_ACCESS' % idx] = disk.mode
|
2082 | 2266edb2 | Guido Trotter | if constants.HV_DISK_TYPE in instance.hvparams: |
2083 | 2266edb2 | Guido Trotter | result['DISK_%d_FRONTEND_TYPE' % idx] = \
|
2084 | 2266edb2 | Guido Trotter | instance.hvparams[constants.HV_DISK_TYPE] |
2085 | 2266edb2 | Guido Trotter | if disk.dev_type in constants.LDS_BLOCK: |
2086 | 2266edb2 | Guido Trotter | result['DISK_%d_BACKEND_TYPE' % idx] = 'block' |
2087 | 2266edb2 | Guido Trotter | elif disk.dev_type == constants.LD_FILE:
|
2088 | 2266edb2 | Guido Trotter | result['DISK_%d_BACKEND_TYPE' % idx] = \
|
2089 | 2266edb2 | Guido Trotter | 'file:%s' % disk.physical_id[0] |
2090 | efaa9b06 | Iustin Pop | |
2091 | efaa9b06 | Iustin Pop | # NICs
|
2092 | 2266edb2 | Guido Trotter | for idx, nic in enumerate(instance.nics): |
2093 | 2266edb2 | Guido Trotter | result['NIC_%d_MAC' % idx] = nic.mac
|
2094 | 2266edb2 | Guido Trotter | if nic.ip:
|
2095 | 2266edb2 | Guido Trotter | result['NIC_%d_IP' % idx] = nic.ip
|
2096 | 1ba9227f | Guido Trotter | result['NIC_%d_MODE' % idx] = nic.nicparams[constants.NIC_MODE]
|
2097 | 1ba9227f | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
2098 | 1ba9227f | Guido Trotter | result['NIC_%d_BRIDGE' % idx] = nic.nicparams[constants.NIC_LINK]
|
2099 | 1ba9227f | Guido Trotter | if nic.nicparams[constants.NIC_LINK]:
|
2100 | 1ba9227f | Guido Trotter | result['NIC_%d_LINK' % idx] = nic.nicparams[constants.NIC_LINK]
|
2101 | 2266edb2 | Guido Trotter | if constants.HV_NIC_TYPE in instance.hvparams: |
2102 | 2266edb2 | Guido Trotter | result['NIC_%d_FRONTEND_TYPE' % idx] = \
|
2103 | 2266edb2 | Guido Trotter | instance.hvparams[constants.HV_NIC_TYPE] |
2104 | 2266edb2 | Guido Trotter | |
2105 | efaa9b06 | Iustin Pop | # HV/BE params
|
2106 | 67fc3042 | Iustin Pop | for source, kind in [(instance.beparams, "BE"), (instance.hvparams, "HV")]: |
2107 | 67fc3042 | Iustin Pop | for key, value in source.items(): |
2108 | 030b218a | Iustin Pop | result["INSTANCE_%s_%s" % (kind, key)] = str(value) |
2109 | 67fc3042 | Iustin Pop | |
2110 | 2266edb2 | Guido Trotter | return result
|
2111 | a8083063 | Iustin Pop | |
2112 | f2e07bb4 | Michael Hanselmann | |
2113 | 821d1bd1 | Iustin Pop | def BlockdevGrow(disk, amount): |
2114 | 594609c0 | Iustin Pop | """Grow a stack of block devices.
|
2115 | 594609c0 | Iustin Pop |
|
2116 | 594609c0 | Iustin Pop | This function is called recursively, with the childrens being the
|
2117 | 10c2650b | Iustin Pop | first ones to resize.
|
2118 | 594609c0 | Iustin Pop |
|
2119 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
2120 | 10c2650b | Iustin Pop | @param disk: the disk to be grown
|
2121 | 10c2650b | Iustin Pop | @rtype: (status, result)
|
2122 | 10c2650b | Iustin Pop | @return: a tuple with the status of the operation
|
2123 | 10c2650b | Iustin Pop | (True/False), and the errors message if status
|
2124 | 10c2650b | Iustin Pop | is False
|
2125 | 594609c0 | Iustin Pop |
|
2126 | 594609c0 | Iustin Pop | """
|
2127 | 594609c0 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
2128 | 594609c0 | Iustin Pop | if r_dev is None: |
2129 | afdc3985 | Iustin Pop | _Fail("Cannot find block device %s", disk)
|
2130 | 594609c0 | Iustin Pop | |
2131 | 594609c0 | Iustin Pop | try:
|
2132 | 594609c0 | Iustin Pop | r_dev.Grow(amount) |
2133 | 594609c0 | Iustin Pop | except errors.BlockDeviceError, err:
|
2134 | 2cc6781a | Iustin Pop | _Fail("Failed to grow block device: %s", err, exc=True) |
2135 | 594609c0 | Iustin Pop | |
2136 | 594609c0 | Iustin Pop | |
2137 | 821d1bd1 | Iustin Pop | def BlockdevSnapshot(disk): |
2138 | a8083063 | Iustin Pop | """Create a snapshot copy of a block device.
|
2139 | a8083063 | Iustin Pop |
|
2140 | a8083063 | Iustin Pop | This function is called recursively, and the snapshot is actually created
|
2141 | a8083063 | Iustin Pop | just for the leaf lvm backend device.
|
2142 | a8083063 | Iustin Pop |
|
2143 | e9e9263d | Guido Trotter | @type disk: L{objects.Disk}
|
2144 | e9e9263d | Guido Trotter | @param disk: the disk to be snapshotted
|
2145 | e9e9263d | Guido Trotter | @rtype: string
|
2146 | 800ac399 | Iustin Pop | @return: snapshot disk ID as (vg, lv)
|
2147 | a8083063 | Iustin Pop |
|
2148 | 098c0958 | Michael Hanselmann | """
|
2149 | 433c63aa | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
2150 | 433c63aa | Iustin Pop | if not disk.children: |
2151 | 433c63aa | Iustin Pop | _Fail("DRBD device '%s' without backing storage cannot be snapshotted",
|
2152 | 433c63aa | Iustin Pop | disk.unique_id) |
2153 | 433c63aa | Iustin Pop | return BlockdevSnapshot(disk.children[0]) |
2154 | fe96220b | Iustin Pop | elif disk.dev_type == constants.LD_LV:
|
2155 | a8083063 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
2156 | a8083063 | Iustin Pop | if r_dev is not None: |
2157 | 433c63aa | Iustin Pop | # FIXME: choose a saner value for the snapshot size
|
2158 | a8083063 | Iustin Pop | # let's stay on the safe side and ask for the full size, for now
|
2159 | c26a6bd2 | Iustin Pop | return r_dev.Snapshot(disk.size)
|
2160 | a8083063 | Iustin Pop | else:
|
2161 | 87812fd3 | Iustin Pop | _Fail("Cannot find block device %s", disk)
|
2162 | a8083063 | Iustin Pop | else:
|
2163 | 87812fd3 | Iustin Pop | _Fail("Cannot snapshot non-lvm block device '%s' of type '%s'",
|
2164 | 87812fd3 | Iustin Pop | disk.unique_id, disk.dev_type) |
2165 | a8083063 | Iustin Pop | |
2166 | a8083063 | Iustin Pop | |
2167 | a8083063 | Iustin Pop | def FinalizeExport(instance, snap_disks): |
2168 | a8083063 | Iustin Pop | """Write out the export configuration information.
|
2169 | a8083063 | Iustin Pop |
|
2170 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
2171 | 10c2650b | Iustin Pop | @param instance: the instance which we export, used for
|
2172 | 10c2650b | Iustin Pop | saving configuration
|
2173 | 10c2650b | Iustin Pop | @type snap_disks: list of L{objects.Disk}
|
2174 | 10c2650b | Iustin Pop | @param snap_disks: list of snapshot block devices, which
|
2175 | 10c2650b | Iustin Pop | will be used to get the actual name of the dump file
|
2176 | a8083063 | Iustin Pop |
|
2177 | c26a6bd2 | Iustin Pop | @rtype: None
|
2178 | a8083063 | Iustin Pop |
|
2179 | 098c0958 | Michael Hanselmann | """
|
2180 | c4feafe8 | Iustin Pop | destdir = utils.PathJoin(constants.EXPORT_DIR, instance.name + ".new")
|
2181 | c4feafe8 | Iustin Pop | finaldestdir = utils.PathJoin(constants.EXPORT_DIR, instance.name) |
2182 | a8083063 | Iustin Pop | |
2183 | a8083063 | Iustin Pop | config = objects.SerializableConfigParser() |
2184 | a8083063 | Iustin Pop | |
2185 | a8083063 | Iustin Pop | config.add_section(constants.INISECT_EXP) |
2186 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'version', '0') |
2187 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'timestamp', '%d' % int(time.time())) |
2188 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'source', instance.primary_node)
|
2189 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'os', instance.os)
|
2190 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'compression', 'gzip') |
2191 | a8083063 | Iustin Pop | |
2192 | a8083063 | Iustin Pop | config.add_section(constants.INISECT_INS) |
2193 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'name', instance.name)
|
2194 | 51de46bf | Iustin Pop | config.set(constants.INISECT_INS, 'memory', '%d' % |
2195 | 51de46bf | Iustin Pop | instance.beparams[constants.BE_MEMORY]) |
2196 | 51de46bf | Iustin Pop | config.set(constants.INISECT_INS, 'vcpus', '%d' % |
2197 | 51de46bf | Iustin Pop | instance.beparams[constants.BE_VCPUS]) |
2198 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'disk_template', instance.disk_template)
|
2199 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_INS, 'hypervisor', instance.hypervisor)
|
2200 | 66f93869 | Manuel Franceschini | |
2201 | 95268cc3 | Iustin Pop | nic_total = 0
|
2202 | a8083063 | Iustin Pop | for nic_count, nic in enumerate(instance.nics): |
2203 | 95268cc3 | Iustin Pop | nic_total += 1
|
2204 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'nic%d_mac' %
|
2205 | a8083063 | Iustin Pop | nic_count, '%s' % nic.mac)
|
2206 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'nic%d_ip' % nic_count, '%s' % nic.ip) |
2207 | 6801eb5c | Iustin Pop | for param in constants.NICS_PARAMETER_TYPES: |
2208 | 6801eb5c | Iustin Pop | config.set(constants.INISECT_INS, 'nic%d_%s' % (nic_count, param),
|
2209 | 6801eb5c | Iustin Pop | '%s' % nic.nicparams.get(param, None)) |
2210 | a8083063 | Iustin Pop | # TODO: redundant: on load can read nics until it doesn't exist
|
2211 | 95268cc3 | Iustin Pop | config.set(constants.INISECT_INS, 'nic_count' , '%d' % nic_total) |
2212 | a8083063 | Iustin Pop | |
2213 | 726d7d68 | Iustin Pop | disk_total = 0
|
2214 | a8083063 | Iustin Pop | for disk_count, disk in enumerate(snap_disks): |
2215 | 19d7f90a | Guido Trotter | if disk:
|
2216 | 726d7d68 | Iustin Pop | disk_total += 1
|
2217 | 19d7f90a | Guido Trotter | config.set(constants.INISECT_INS, 'disk%d_ivname' % disk_count,
|
2218 | 19d7f90a | Guido Trotter | ('%s' % disk.iv_name))
|
2219 | 19d7f90a | Guido Trotter | config.set(constants.INISECT_INS, 'disk%d_dump' % disk_count,
|
2220 | 19d7f90a | Guido Trotter | ('%s' % disk.physical_id[1])) |
2221 | 19d7f90a | Guido Trotter | config.set(constants.INISECT_INS, 'disk%d_size' % disk_count,
|
2222 | 19d7f90a | Guido Trotter | ('%d' % disk.size))
|
2223 | a8083063 | Iustin Pop | |
2224 | 726d7d68 | Iustin Pop | config.set(constants.INISECT_INS, 'disk_count' , '%d' % disk_total) |
2225 | a8083063 | Iustin Pop | |
2226 | 3c8954ad | Iustin Pop | # New-style hypervisor/backend parameters
|
2227 | 3c8954ad | Iustin Pop | |
2228 | 3c8954ad | Iustin Pop | config.add_section(constants.INISECT_HYP) |
2229 | 3c8954ad | Iustin Pop | for name, value in instance.hvparams.items(): |
2230 | 3c8954ad | Iustin Pop | if name not in constants.HVC_GLOBALS: |
2231 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_HYP, name, str(value))
|
2232 | 3c8954ad | Iustin Pop | |
2233 | 3c8954ad | Iustin Pop | config.add_section(constants.INISECT_BEP) |
2234 | 3c8954ad | Iustin Pop | for name, value in instance.beparams.items(): |
2235 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_BEP, name, str(value))
|
2236 | 3c8954ad | Iustin Pop | |
2237 | 535b49cb | Iustin Pop | config.add_section(constants.INISECT_OSP) |
2238 | 535b49cb | Iustin Pop | for name, value in instance.osparams.items(): |
2239 | 535b49cb | Iustin Pop | config.set(constants.INISECT_OSP, name, str(value))
|
2240 | 535b49cb | Iustin Pop | |
2241 | c4feafe8 | Iustin Pop | utils.WriteFile(utils.PathJoin(destdir, constants.EXPORT_CONF_FILE), |
2242 | 726d7d68 | Iustin Pop | data=config.Dumps()) |
2243 | 56569f4e | Michael Hanselmann | shutil.rmtree(finaldestdir, ignore_errors=True)
|
2244 | a8083063 | Iustin Pop | shutil.move(destdir, finaldestdir) |
2245 | a8083063 | Iustin Pop | |
2246 | a8083063 | Iustin Pop | |
2247 | a8083063 | Iustin Pop | def ExportInfo(dest): |
2248 | a8083063 | Iustin Pop | """Get export configuration information.
|
2249 | a8083063 | Iustin Pop |
|
2250 | 10c2650b | Iustin Pop | @type dest: str
|
2251 | 10c2650b | Iustin Pop | @param dest: directory containing the export
|
2252 | a8083063 | Iustin Pop |
|
2253 | 10c2650b | Iustin Pop | @rtype: L{objects.SerializableConfigParser}
|
2254 | 10c2650b | Iustin Pop | @return: a serializable config file containing the
|
2255 | 10c2650b | Iustin Pop | export info
|
2256 | a8083063 | Iustin Pop |
|
2257 | a8083063 | Iustin Pop | """
|
2258 | c4feafe8 | Iustin Pop | cff = utils.PathJoin(dest, constants.EXPORT_CONF_FILE) |
2259 | a8083063 | Iustin Pop | |
2260 | a8083063 | Iustin Pop | config = objects.SerializableConfigParser() |
2261 | a8083063 | Iustin Pop | config.read(cff) |
2262 | a8083063 | Iustin Pop | |
2263 | a8083063 | Iustin Pop | if (not config.has_section(constants.INISECT_EXP) or |
2264 | a8083063 | Iustin Pop | not config.has_section(constants.INISECT_INS)):
|
2265 | 3eccac06 | Iustin Pop | _Fail("Export info file doesn't have the required fields")
|
2266 | a8083063 | Iustin Pop | |
2267 | c26a6bd2 | Iustin Pop | return config.Dumps()
|
2268 | a8083063 | Iustin Pop | |
2269 | a8083063 | Iustin Pop | |
2270 | a8083063 | Iustin Pop | def ListExports(): |
2271 | a8083063 | Iustin Pop | """Return a list of exports currently available on this machine.
|
2272 | 098c0958 | Michael Hanselmann |
|
2273 | 10c2650b | Iustin Pop | @rtype: list
|
2274 | 10c2650b | Iustin Pop | @return: list of the exports
|
2275 | 10c2650b | Iustin Pop |
|
2276 | a8083063 | Iustin Pop | """
|
2277 | a8083063 | Iustin Pop | if os.path.isdir(constants.EXPORT_DIR):
|
2278 | b5b8309d | Guido Trotter | return sorted(utils.ListVisibleFiles(constants.EXPORT_DIR)) |
2279 | a8083063 | Iustin Pop | else:
|
2280 | afdc3985 | Iustin Pop | _Fail("No exports directory")
|
2281 | a8083063 | Iustin Pop | |
2282 | a8083063 | Iustin Pop | |
2283 | a8083063 | Iustin Pop | def RemoveExport(export): |
2284 | a8083063 | Iustin Pop | """Remove an existing export from the node.
|
2285 | a8083063 | Iustin Pop |
|
2286 | 10c2650b | Iustin Pop | @type export: str
|
2287 | 10c2650b | Iustin Pop | @param export: the name of the export to remove
|
2288 | c26a6bd2 | Iustin Pop | @rtype: None
|
2289 | a8083063 | Iustin Pop |
|
2290 | 098c0958 | Michael Hanselmann | """
|
2291 | c4feafe8 | Iustin Pop | target = utils.PathJoin(constants.EXPORT_DIR, export) |
2292 | a8083063 | Iustin Pop | |
2293 | 35fbcd11 | Iustin Pop | try:
|
2294 | 35fbcd11 | Iustin Pop | shutil.rmtree(target) |
2295 | 35fbcd11 | Iustin Pop | except EnvironmentError, err: |
2296 | 35fbcd11 | Iustin Pop | _Fail("Error while removing the export: %s", err, exc=True) |
2297 | a8083063 | Iustin Pop | |
2298 | a8083063 | Iustin Pop | |
2299 | 821d1bd1 | Iustin Pop | def BlockdevRename(devlist): |
2300 | f3e513ad | Iustin Pop | """Rename a list of block devices.
|
2301 | f3e513ad | Iustin Pop |
|
2302 | 10c2650b | Iustin Pop | @type devlist: list of tuples
|
2303 | 10c2650b | Iustin Pop | @param devlist: list of tuples of the form (disk,
|
2304 | 10c2650b | Iustin Pop | new_logical_id, new_physical_id); disk is an
|
2305 | 10c2650b | Iustin Pop | L{objects.Disk} object describing the current disk,
|
2306 | 10c2650b | Iustin Pop | and new logical_id/physical_id is the name we
|
2307 | 10c2650b | Iustin Pop | rename it to
|
2308 | 10c2650b | Iustin Pop | @rtype: boolean
|
2309 | 10c2650b | Iustin Pop | @return: True if all renames succeeded, False otherwise
|
2310 | f3e513ad | Iustin Pop |
|
2311 | f3e513ad | Iustin Pop | """
|
2312 | 6b5e3f70 | Iustin Pop | msgs = [] |
2313 | f3e513ad | Iustin Pop | result = True
|
2314 | f3e513ad | Iustin Pop | for disk, unique_id in devlist: |
2315 | f3e513ad | Iustin Pop | dev = _RecursiveFindBD(disk) |
2316 | f3e513ad | Iustin Pop | if dev is None: |
2317 | 6b5e3f70 | Iustin Pop | msgs.append("Can't find device %s in rename" % str(disk)) |
2318 | f3e513ad | Iustin Pop | result = False
|
2319 | f3e513ad | Iustin Pop | continue
|
2320 | f3e513ad | Iustin Pop | try:
|
2321 | 3f78eef2 | Iustin Pop | old_rpath = dev.dev_path |
2322 | f3e513ad | Iustin Pop | dev.Rename(unique_id) |
2323 | 3f78eef2 | Iustin Pop | new_rpath = dev.dev_path |
2324 | 3f78eef2 | Iustin Pop | if old_rpath != new_rpath:
|
2325 | 3f78eef2 | Iustin Pop | DevCacheManager.RemoveCache(old_rpath) |
2326 | 3f78eef2 | Iustin Pop | # FIXME: we should add the new cache information here, like:
|
2327 | 3f78eef2 | Iustin Pop | # DevCacheManager.UpdateCache(new_rpath, owner, ...)
|
2328 | 3f78eef2 | Iustin Pop | # but we don't have the owner here - maybe parse from existing
|
2329 | 3f78eef2 | Iustin Pop | # cache? for now, we only lose lvm data when we rename, which
|
2330 | 3f78eef2 | Iustin Pop | # is less critical than DRBD or MD
|
2331 | f3e513ad | Iustin Pop | except errors.BlockDeviceError, err:
|
2332 | 6b5e3f70 | Iustin Pop | msgs.append("Can't rename device '%s' to '%s': %s" %
|
2333 | 6b5e3f70 | Iustin Pop | (dev, unique_id, err)) |
2334 | 18682bca | Iustin Pop | logging.exception("Can't rename device '%s' to '%s'", dev, unique_id)
|
2335 | f3e513ad | Iustin Pop | result = False
|
2336 | afdc3985 | Iustin Pop | if not result: |
2337 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
2338 | f3e513ad | Iustin Pop | |
2339 | f3e513ad | Iustin Pop | |
2340 | 778b75bb | Manuel Franceschini | def _TransformFileStorageDir(file_storage_dir): |
2341 | 778b75bb | Manuel Franceschini | """Checks whether given file_storage_dir is valid.
|
2342 | 778b75bb | Manuel Franceschini |
|
2343 | 778b75bb | Manuel Franceschini | Checks wheter the given file_storage_dir is within the cluster-wide
|
2344 | 778b75bb | Manuel Franceschini | default file_storage_dir stored in SimpleStore. Only paths under that
|
2345 | 778b75bb | Manuel Franceschini | directory are allowed.
|
2346 | 778b75bb | Manuel Franceschini |
|
2347 | b1206984 | Iustin Pop | @type file_storage_dir: str
|
2348 | b1206984 | Iustin Pop | @param file_storage_dir: the path to check
|
2349 | d61cbe76 | Iustin Pop |
|
2350 | b1206984 | Iustin Pop | @return: the normalized path if valid, None otherwise
|
2351 | 778b75bb | Manuel Franceschini |
|
2352 | 778b75bb | Manuel Franceschini | """
|
2353 | cb7c0198 | Iustin Pop | if not constants.ENABLE_FILE_STORAGE: |
2354 | cb7c0198 | Iustin Pop | _Fail("File storage disabled at configure time")
|
2355 | c657dcc9 | Michael Hanselmann | cfg = _GetConfig() |
2356 | 778b75bb | Manuel Franceschini | file_storage_dir = os.path.normpath(file_storage_dir) |
2357 | c657dcc9 | Michael Hanselmann | base_file_storage_dir = cfg.GetFileStorageDir() |
2358 | 56569f4e | Michael Hanselmann | if (os.path.commonprefix([file_storage_dir, base_file_storage_dir]) !=
|
2359 | 778b75bb | Manuel Franceschini | base_file_storage_dir): |
2360 | b2b8bcce | Iustin Pop | _Fail("File storage directory '%s' is not under base file"
|
2361 | b2b8bcce | Iustin Pop | " storage directory '%s'", file_storage_dir, base_file_storage_dir)
|
2362 | 778b75bb | Manuel Franceschini | return file_storage_dir
|
2363 | 778b75bb | Manuel Franceschini | |
2364 | 778b75bb | Manuel Franceschini | |
2365 | 778b75bb | Manuel Franceschini | def CreateFileStorageDir(file_storage_dir): |
2366 | 778b75bb | Manuel Franceschini | """Create file storage directory.
|
2367 | 778b75bb | Manuel Franceschini |
|
2368 | b1206984 | Iustin Pop | @type file_storage_dir: str
|
2369 | b1206984 | Iustin Pop | @param file_storage_dir: directory to create
|
2370 | 778b75bb | Manuel Franceschini |
|
2371 | b1206984 | Iustin Pop | @rtype: tuple
|
2372 | b1206984 | Iustin Pop | @return: tuple with first element a boolean indicating wheter dir
|
2373 | b1206984 | Iustin Pop | creation was successful or not
|
2374 | 778b75bb | Manuel Franceschini |
|
2375 | 778b75bb | Manuel Franceschini | """
|
2376 | 778b75bb | Manuel Franceschini | file_storage_dir = _TransformFileStorageDir(file_storage_dir) |
2377 | b2b8bcce | Iustin Pop | if os.path.exists(file_storage_dir):
|
2378 | b2b8bcce | Iustin Pop | if not os.path.isdir(file_storage_dir): |
2379 | b2b8bcce | Iustin Pop | _Fail("Specified storage dir '%s' is not a directory",
|
2380 | b2b8bcce | Iustin Pop | file_storage_dir) |
2381 | 778b75bb | Manuel Franceschini | else:
|
2382 | b2b8bcce | Iustin Pop | try:
|
2383 | b2b8bcce | Iustin Pop | os.makedirs(file_storage_dir, 0750)
|
2384 | b2b8bcce | Iustin Pop | except OSError, err: |
2385 | b2b8bcce | Iustin Pop | _Fail("Cannot create file storage directory '%s': %s",
|
2386 | b2b8bcce | Iustin Pop | file_storage_dir, err, exc=True)
|
2387 | 778b75bb | Manuel Franceschini | |
2388 | 778b75bb | Manuel Franceschini | |
2389 | 778b75bb | Manuel Franceschini | def RemoveFileStorageDir(file_storage_dir): |
2390 | 778b75bb | Manuel Franceschini | """Remove file storage directory.
|
2391 | 778b75bb | Manuel Franceschini |
|
2392 | 778b75bb | Manuel Franceschini | Remove it only if it's empty. If not log an error and return.
|
2393 | 778b75bb | Manuel Franceschini |
|
2394 | 10c2650b | Iustin Pop | @type file_storage_dir: str
|
2395 | 10c2650b | Iustin Pop | @param file_storage_dir: the directory we should cleanup
|
2396 | 10c2650b | Iustin Pop | @rtype: tuple (success,)
|
2397 | 10c2650b | Iustin Pop | @return: tuple of one element, C{success}, denoting
|
2398 | 5bbd3f7f | Michael Hanselmann | whether the operation was successful
|
2399 | 778b75bb | Manuel Franceschini |
|
2400 | 778b75bb | Manuel Franceschini | """
|
2401 | 778b75bb | Manuel Franceschini | file_storage_dir = _TransformFileStorageDir(file_storage_dir) |
2402 | b2b8bcce | Iustin Pop | if os.path.exists(file_storage_dir):
|
2403 | b2b8bcce | Iustin Pop | if not os.path.isdir(file_storage_dir): |
2404 | b2b8bcce | Iustin Pop | _Fail("Specified Storage directory '%s' is not a directory",
|
2405 | b2b8bcce | Iustin Pop | file_storage_dir) |
2406 | afdc3985 | Iustin Pop | # deletes dir only if empty, otherwise we want to fail the rpc call
|
2407 | b2b8bcce | Iustin Pop | try:
|
2408 | b2b8bcce | Iustin Pop | os.rmdir(file_storage_dir) |
2409 | b2b8bcce | Iustin Pop | except OSError, err: |
2410 | b2b8bcce | Iustin Pop | _Fail("Cannot remove file storage directory '%s': %s",
|
2411 | b2b8bcce | Iustin Pop | file_storage_dir, err) |
2412 | b2b8bcce | Iustin Pop | |
2413 | 778b75bb | Manuel Franceschini | |
2414 | 778b75bb | Manuel Franceschini | def RenameFileStorageDir(old_file_storage_dir, new_file_storage_dir): |
2415 | 778b75bb | Manuel Franceschini | """Rename the file storage directory.
|
2416 | 778b75bb | Manuel Franceschini |
|
2417 | 10c2650b | Iustin Pop | @type old_file_storage_dir: str
|
2418 | 10c2650b | Iustin Pop | @param old_file_storage_dir: the current path
|
2419 | 10c2650b | Iustin Pop | @type new_file_storage_dir: str
|
2420 | 10c2650b | Iustin Pop | @param new_file_storage_dir: the name we should rename to
|
2421 | 10c2650b | Iustin Pop | @rtype: tuple (success,)
|
2422 | 10c2650b | Iustin Pop | @return: tuple of one element, C{success}, denoting
|
2423 | 10c2650b | Iustin Pop | whether the operation was successful
|
2424 | 778b75bb | Manuel Franceschini |
|
2425 | 778b75bb | Manuel Franceschini | """
|
2426 | 778b75bb | Manuel Franceschini | old_file_storage_dir = _TransformFileStorageDir(old_file_storage_dir) |
2427 | 778b75bb | Manuel Franceschini | new_file_storage_dir = _TransformFileStorageDir(new_file_storage_dir) |
2428 | b2b8bcce | Iustin Pop | if not os.path.exists(new_file_storage_dir): |
2429 | b2b8bcce | Iustin Pop | if os.path.isdir(old_file_storage_dir):
|
2430 | b2b8bcce | Iustin Pop | try:
|
2431 | b2b8bcce | Iustin Pop | os.rename(old_file_storage_dir, new_file_storage_dir) |
2432 | b2b8bcce | Iustin Pop | except OSError, err: |
2433 | b2b8bcce | Iustin Pop | _Fail("Cannot rename '%s' to '%s': %s",
|
2434 | b2b8bcce | Iustin Pop | old_file_storage_dir, new_file_storage_dir, err) |
2435 | 778b75bb | Manuel Franceschini | else:
|
2436 | b2b8bcce | Iustin Pop | _Fail("Specified storage dir '%s' is not a directory",
|
2437 | b2b8bcce | Iustin Pop | old_file_storage_dir) |
2438 | b2b8bcce | Iustin Pop | else:
|
2439 | b2b8bcce | Iustin Pop | if os.path.exists(old_file_storage_dir):
|
2440 | b2b8bcce | Iustin Pop | _Fail("Cannot rename '%s' to '%s': both locations exist",
|
2441 | b2b8bcce | Iustin Pop | old_file_storage_dir, new_file_storage_dir) |
2442 | 778b75bb | Manuel Franceschini | |
2443 | 778b75bb | Manuel Franceschini | |
2444 | c8457ce7 | Iustin Pop | def _EnsureJobQueueFile(file_name): |
2445 | dc31eae3 | Michael Hanselmann | """Checks whether the given filename is in the queue directory.
|
2446 | ca52cdeb | Michael Hanselmann |
|
2447 | 10c2650b | Iustin Pop | @type file_name: str
|
2448 | 10c2650b | Iustin Pop | @param file_name: the file name we should check
|
2449 | c8457ce7 | Iustin Pop | @rtype: None
|
2450 | c8457ce7 | Iustin Pop | @raises RPCFail: if the file is not valid
|
2451 | 10c2650b | Iustin Pop |
|
2452 | ca52cdeb | Michael Hanselmann | """
|
2453 | ca52cdeb | Michael Hanselmann | queue_dir = os.path.normpath(constants.QUEUE_DIR) |
2454 | dc31eae3 | Michael Hanselmann | result = (os.path.commonprefix([queue_dir, file_name]) == queue_dir) |
2455 | dc31eae3 | Michael Hanselmann | |
2456 | dc31eae3 | Michael Hanselmann | if not result: |
2457 | c8457ce7 | Iustin Pop | _Fail("Passed job queue file '%s' does not belong to"
|
2458 | c8457ce7 | Iustin Pop | " the queue directory '%s'", file_name, queue_dir)
|
2459 | dc31eae3 | Michael Hanselmann | |
2460 | dc31eae3 | Michael Hanselmann | |
2461 | dc31eae3 | Michael Hanselmann | def JobQueueUpdate(file_name, content): |
2462 | dc31eae3 | Michael Hanselmann | """Updates a file in the queue directory.
|
2463 | dc31eae3 | Michael Hanselmann |
|
2464 | 10c2650b | Iustin Pop | This is just a wrapper over L{utils.WriteFile}, with proper
|
2465 | 10c2650b | Iustin Pop | checking.
|
2466 | 10c2650b | Iustin Pop |
|
2467 | 10c2650b | Iustin Pop | @type file_name: str
|
2468 | 10c2650b | Iustin Pop | @param file_name: the job file name
|
2469 | 10c2650b | Iustin Pop | @type content: str
|
2470 | 10c2650b | Iustin Pop | @param content: the new job contents
|
2471 | 10c2650b | Iustin Pop | @rtype: boolean
|
2472 | 10c2650b | Iustin Pop | @return: the success of the operation
|
2473 | 10c2650b | Iustin Pop |
|
2474 | dc31eae3 | Michael Hanselmann | """
|
2475 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(file_name) |
2476 | 82b22e19 | René Nussbaumer | getents = runtime.GetEnts() |
2477 | ca52cdeb | Michael Hanselmann | |
2478 | ca52cdeb | Michael Hanselmann | # Write and replace the file atomically
|
2479 | 82b22e19 | René Nussbaumer | utils.WriteFile(file_name, data=_Decompress(content), uid=getents.masterd_uid, |
2480 | 82b22e19 | René Nussbaumer | gid=getents.masterd_gid) |
2481 | ca52cdeb | Michael Hanselmann | |
2482 | ca52cdeb | Michael Hanselmann | |
2483 | af5ebcb1 | Michael Hanselmann | def JobQueueRename(old, new): |
2484 | af5ebcb1 | Michael Hanselmann | """Renames a job queue file.
|
2485 | af5ebcb1 | Michael Hanselmann |
|
2486 | c41eea6e | Iustin Pop | This is just a wrapper over os.rename with proper checking.
|
2487 | 10c2650b | Iustin Pop |
|
2488 | 10c2650b | Iustin Pop | @type old: str
|
2489 | 10c2650b | Iustin Pop | @param old: the old (actual) file name
|
2490 | 10c2650b | Iustin Pop | @type new: str
|
2491 | 10c2650b | Iustin Pop | @param new: the desired file name
|
2492 | c8457ce7 | Iustin Pop | @rtype: tuple
|
2493 | c8457ce7 | Iustin Pop | @return: the success of the operation and payload
|
2494 | 10c2650b | Iustin Pop |
|
2495 | af5ebcb1 | Michael Hanselmann | """
|
2496 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(old) |
2497 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(new) |
2498 | af5ebcb1 | Michael Hanselmann | |
2499 | 58b22b6e | Michael Hanselmann | utils.RenameFile(old, new, mkdir=True)
|
2500 | af5ebcb1 | Michael Hanselmann | |
2501 | af5ebcb1 | Michael Hanselmann | |
2502 | 821d1bd1 | Iustin Pop | def BlockdevClose(instance_name, disks): |
2503 | d61cbe76 | Iustin Pop | """Closes the given block devices.
|
2504 | d61cbe76 | Iustin Pop |
|
2505 | 10c2650b | Iustin Pop | This means they will be switched to secondary mode (in case of
|
2506 | 10c2650b | Iustin Pop | DRBD).
|
2507 | 10c2650b | Iustin Pop |
|
2508 | b2e7666a | Iustin Pop | @param instance_name: if the argument is not empty, the symlinks
|
2509 | b2e7666a | Iustin Pop | of this instance will be removed
|
2510 | 10c2650b | Iustin Pop | @type disks: list of L{objects.Disk}
|
2511 | 10c2650b | Iustin Pop | @param disks: the list of disks to be closed
|
2512 | 10c2650b | Iustin Pop | @rtype: tuple (success, message)
|
2513 | 10c2650b | Iustin Pop | @return: a tuple of success and message, where success
|
2514 | 10c2650b | Iustin Pop | indicates the succes of the operation, and message
|
2515 | 10c2650b | Iustin Pop | which will contain the error details in case we
|
2516 | 10c2650b | Iustin Pop | failed
|
2517 | d61cbe76 | Iustin Pop |
|
2518 | d61cbe76 | Iustin Pop | """
|
2519 | d61cbe76 | Iustin Pop | bdevs = [] |
2520 | d61cbe76 | Iustin Pop | for cf in disks: |
2521 | d61cbe76 | Iustin Pop | rd = _RecursiveFindBD(cf) |
2522 | d61cbe76 | Iustin Pop | if rd is None: |
2523 | 2cc6781a | Iustin Pop | _Fail("Can't find device %s", cf)
|
2524 | d61cbe76 | Iustin Pop | bdevs.append(rd) |
2525 | d61cbe76 | Iustin Pop | |
2526 | d61cbe76 | Iustin Pop | msg = [] |
2527 | d61cbe76 | Iustin Pop | for rd in bdevs: |
2528 | d61cbe76 | Iustin Pop | try:
|
2529 | d61cbe76 | Iustin Pop | rd.Close() |
2530 | d61cbe76 | Iustin Pop | except errors.BlockDeviceError, err:
|
2531 | d61cbe76 | Iustin Pop | msg.append(str(err))
|
2532 | d61cbe76 | Iustin Pop | if msg:
|
2533 | afdc3985 | Iustin Pop | _Fail("Can't make devices secondary: %s", ",".join(msg)) |
2534 | d61cbe76 | Iustin Pop | else:
|
2535 | b2e7666a | Iustin Pop | if instance_name:
|
2536 | 5282084b | Iustin Pop | _RemoveBlockDevLinks(instance_name, disks) |
2537 | d61cbe76 | Iustin Pop | |
2538 | d61cbe76 | Iustin Pop | |
2539 | 6217e295 | Iustin Pop | def ValidateHVParams(hvname, hvparams): |
2540 | 6217e295 | Iustin Pop | """Validates the given hypervisor parameters.
|
2541 | 6217e295 | Iustin Pop |
|
2542 | 6217e295 | Iustin Pop | @type hvname: string
|
2543 | 6217e295 | Iustin Pop | @param hvname: the hypervisor name
|
2544 | 6217e295 | Iustin Pop | @type hvparams: dict
|
2545 | 6217e295 | Iustin Pop | @param hvparams: the hypervisor parameters to be validated
|
2546 | c26a6bd2 | Iustin Pop | @rtype: None
|
2547 | 6217e295 | Iustin Pop |
|
2548 | 6217e295 | Iustin Pop | """
|
2549 | 6217e295 | Iustin Pop | try:
|
2550 | 6217e295 | Iustin Pop | hv_type = hypervisor.GetHypervisor(hvname) |
2551 | 6217e295 | Iustin Pop | hv_type.ValidateParameters(hvparams) |
2552 | 6217e295 | Iustin Pop | except errors.HypervisorError, err:
|
2553 | afdc3985 | Iustin Pop | _Fail(str(err), log=False) |
2554 | 6217e295 | Iustin Pop | |
2555 | 6217e295 | Iustin Pop | |
2556 | acd9ff9e | Iustin Pop | def _CheckOSPList(os_obj, parameters): |
2557 | acd9ff9e | Iustin Pop | """Check whether a list of parameters is supported by the OS.
|
2558 | acd9ff9e | Iustin Pop |
|
2559 | acd9ff9e | Iustin Pop | @type os_obj: L{objects.OS}
|
2560 | acd9ff9e | Iustin Pop | @param os_obj: OS object to check
|
2561 | acd9ff9e | Iustin Pop | @type parameters: list
|
2562 | acd9ff9e | Iustin Pop | @param parameters: the list of parameters to check
|
2563 | acd9ff9e | Iustin Pop |
|
2564 | acd9ff9e | Iustin Pop | """
|
2565 | acd9ff9e | Iustin Pop | supported = [v[0] for v in os_obj.supported_parameters] |
2566 | acd9ff9e | Iustin Pop | delta = frozenset(parameters).difference(supported)
|
2567 | acd9ff9e | Iustin Pop | if delta:
|
2568 | acd9ff9e | Iustin Pop | _Fail("The following parameters are not supported"
|
2569 | acd9ff9e | Iustin Pop | " by the OS %s: %s" % (os_obj.name, utils.CommaJoin(delta)))
|
2570 | acd9ff9e | Iustin Pop | |
2571 | acd9ff9e | Iustin Pop | |
2572 | acd9ff9e | Iustin Pop | def ValidateOS(required, osname, checks, osparams): |
2573 | acd9ff9e | Iustin Pop | """Validate the given OS' parameters.
|
2574 | acd9ff9e | Iustin Pop |
|
2575 | acd9ff9e | Iustin Pop | @type required: boolean
|
2576 | acd9ff9e | Iustin Pop | @param required: whether absence of the OS should translate into
|
2577 | acd9ff9e | Iustin Pop | failure or not
|
2578 | acd9ff9e | Iustin Pop | @type osname: string
|
2579 | acd9ff9e | Iustin Pop | @param osname: the OS to be validated
|
2580 | acd9ff9e | Iustin Pop | @type checks: list
|
2581 | acd9ff9e | Iustin Pop | @param checks: list of the checks to run (currently only 'parameters')
|
2582 | acd9ff9e | Iustin Pop | @type osparams: dict
|
2583 | acd9ff9e | Iustin Pop | @param osparams: dictionary with OS parameters
|
2584 | acd9ff9e | Iustin Pop | @rtype: boolean
|
2585 | acd9ff9e | Iustin Pop | @return: True if the validation passed, or False if the OS was not
|
2586 | acd9ff9e | Iustin Pop | found and L{required} was false
|
2587 | acd9ff9e | Iustin Pop |
|
2588 | acd9ff9e | Iustin Pop | """
|
2589 | acd9ff9e | Iustin Pop | if not constants.OS_VALIDATE_CALLS.issuperset(checks): |
2590 | acd9ff9e | Iustin Pop | _Fail("Unknown checks required for OS %s: %s", osname,
|
2591 | acd9ff9e | Iustin Pop | set(checks).difference(constants.OS_VALIDATE_CALLS))
|
2592 | acd9ff9e | Iustin Pop | |
2593 | 870dc44c | Iustin Pop | name_only = objects.OS.GetName(osname) |
2594 | acd9ff9e | Iustin Pop | status, tbv = _TryOSFromDisk(name_only, None)
|
2595 | acd9ff9e | Iustin Pop | |
2596 | acd9ff9e | Iustin Pop | if not status: |
2597 | acd9ff9e | Iustin Pop | if required:
|
2598 | acd9ff9e | Iustin Pop | _Fail(tbv) |
2599 | acd9ff9e | Iustin Pop | else:
|
2600 | acd9ff9e | Iustin Pop | return False |
2601 | acd9ff9e | Iustin Pop | |
2602 | 72db3fd7 | Iustin Pop | if max(tbv.api_versions) < constants.OS_API_V20: |
2603 | 72db3fd7 | Iustin Pop | return True |
2604 | 72db3fd7 | Iustin Pop | |
2605 | acd9ff9e | Iustin Pop | if constants.OS_VALIDATE_PARAMETERS in checks: |
2606 | acd9ff9e | Iustin Pop | _CheckOSPList(tbv, osparams.keys()) |
2607 | acd9ff9e | Iustin Pop | |
2608 | a025e535 | Vitaly Kuznetsov | validate_env = OSCoreEnv(osname, tbv, osparams) |
2609 | acd9ff9e | Iustin Pop | result = utils.RunCmd([tbv.verify_script] + checks, env=validate_env, |
2610 | acd9ff9e | Iustin Pop | cwd=tbv.path) |
2611 | acd9ff9e | Iustin Pop | if result.failed:
|
2612 | acd9ff9e | Iustin Pop | logging.error("os validate command '%s' returned error: %s output: %s",
|
2613 | acd9ff9e | Iustin Pop | result.cmd, result.fail_reason, result.output) |
2614 | acd9ff9e | Iustin Pop | _Fail("OS validation script failed (%s), output: %s",
|
2615 | acd9ff9e | Iustin Pop | result.fail_reason, result.output, log=False)
|
2616 | acd9ff9e | Iustin Pop | |
2617 | acd9ff9e | Iustin Pop | return True |
2618 | acd9ff9e | Iustin Pop | |
2619 | acd9ff9e | Iustin Pop | |
2620 | 56aa9fd5 | Iustin Pop | def DemoteFromMC(): |
2621 | 56aa9fd5 | Iustin Pop | """Demotes the current node from master candidate role.
|
2622 | 56aa9fd5 | Iustin Pop |
|
2623 | 56aa9fd5 | Iustin Pop | """
|
2624 | 56aa9fd5 | Iustin Pop | # try to ensure we're not the master by mistake
|
2625 | 56aa9fd5 | Iustin Pop | master, myself = ssconf.GetMasterAndMyself() |
2626 | 56aa9fd5 | Iustin Pop | if master == myself:
|
2627 | afdc3985 | Iustin Pop | _Fail("ssconf status shows I'm the master node, will not demote")
|
2628 | f154a7a3 | Michael Hanselmann | |
2629 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "check", constants.MASTERD])
|
2630 | f154a7a3 | Michael Hanselmann | if not result.failed: |
2631 | afdc3985 | Iustin Pop | _Fail("The master daemon is running, will not demote")
|
2632 | f154a7a3 | Michael Hanselmann | |
2633 | 56aa9fd5 | Iustin Pop | try:
|
2634 | 9a5cb537 | Iustin Pop | if os.path.isfile(constants.CLUSTER_CONF_FILE):
|
2635 | 9a5cb537 | Iustin Pop | utils.CreateBackup(constants.CLUSTER_CONF_FILE) |
2636 | 56aa9fd5 | Iustin Pop | except EnvironmentError, err: |
2637 | 56aa9fd5 | Iustin Pop | if err.errno != errno.ENOENT:
|
2638 | afdc3985 | Iustin Pop | _Fail("Error while backing up cluster file: %s", err, exc=True) |
2639 | f154a7a3 | Michael Hanselmann | |
2640 | 56aa9fd5 | Iustin Pop | utils.RemoveFile(constants.CLUSTER_CONF_FILE) |
2641 | 56aa9fd5 | Iustin Pop | |
2642 | 56aa9fd5 | Iustin Pop | |
2643 | f942a838 | Michael Hanselmann | def _GetX509Filenames(cryptodir, name): |
2644 | f942a838 | Michael Hanselmann | """Returns the full paths for the private key and certificate.
|
2645 | f942a838 | Michael Hanselmann |
|
2646 | f942a838 | Michael Hanselmann | """
|
2647 | f942a838 | Michael Hanselmann | return (utils.PathJoin(cryptodir, name),
|
2648 | f942a838 | Michael Hanselmann | utils.PathJoin(cryptodir, name, _X509_KEY_FILE), |
2649 | f942a838 | Michael Hanselmann | utils.PathJoin(cryptodir, name, _X509_CERT_FILE)) |
2650 | f942a838 | Michael Hanselmann | |
2651 | f942a838 | Michael Hanselmann | |
2652 | f942a838 | Michael Hanselmann | def CreateX509Certificate(validity, cryptodir=constants.CRYPTO_KEYS_DIR): |
2653 | f942a838 | Michael Hanselmann | """Creates a new X509 certificate for SSL/TLS.
|
2654 | f942a838 | Michael Hanselmann |
|
2655 | f942a838 | Michael Hanselmann | @type validity: int
|
2656 | f942a838 | Michael Hanselmann | @param validity: Validity in seconds
|
2657 | f942a838 | Michael Hanselmann | @rtype: tuple; (string, string)
|
2658 | f942a838 | Michael Hanselmann | @return: Certificate name and public part
|
2659 | f942a838 | Michael Hanselmann |
|
2660 | f942a838 | Michael Hanselmann | """
|
2661 | f942a838 | Michael Hanselmann | (key_pem, cert_pem) = \ |
2662 | b705c7a6 | Manuel Franceschini | utils.GenerateSelfSignedX509Cert(netutils.Hostname.GetSysName(), |
2663 | f942a838 | Michael Hanselmann | min(validity, _MAX_SSL_CERT_VALIDITY))
|
2664 | f942a838 | Michael Hanselmann | |
2665 | f942a838 | Michael Hanselmann | cert_dir = tempfile.mkdtemp(dir=cryptodir, |
2666 | f942a838 | Michael Hanselmann | prefix="x509-%s-" % utils.TimestampForFilename())
|
2667 | f942a838 | Michael Hanselmann | try:
|
2668 | f942a838 | Michael Hanselmann | name = os.path.basename(cert_dir) |
2669 | f942a838 | Michael Hanselmann | assert len(name) > 5 |
2670 | f942a838 | Michael Hanselmann | |
2671 | f942a838 | Michael Hanselmann | (_, key_file, cert_file) = _GetX509Filenames(cryptodir, name) |
2672 | f942a838 | Michael Hanselmann | |
2673 | f942a838 | Michael Hanselmann | utils.WriteFile(key_file, mode=0400, data=key_pem)
|
2674 | f942a838 | Michael Hanselmann | utils.WriteFile(cert_file, mode=0400, data=cert_pem)
|
2675 | f942a838 | Michael Hanselmann | |
2676 | f942a838 | Michael Hanselmann | # Never return private key as it shouldn't leave the node
|
2677 | f942a838 | Michael Hanselmann | return (name, cert_pem)
|
2678 | f942a838 | Michael Hanselmann | except Exception: |
2679 | f942a838 | Michael Hanselmann | shutil.rmtree(cert_dir, ignore_errors=True)
|
2680 | f942a838 | Michael Hanselmann | raise
|
2681 | f942a838 | Michael Hanselmann | |
2682 | f942a838 | Michael Hanselmann | |
2683 | f942a838 | Michael Hanselmann | def RemoveX509Certificate(name, cryptodir=constants.CRYPTO_KEYS_DIR): |
2684 | f942a838 | Michael Hanselmann | """Removes a X509 certificate.
|
2685 | f942a838 | Michael Hanselmann |
|
2686 | f942a838 | Michael Hanselmann | @type name: string
|
2687 | f942a838 | Michael Hanselmann | @param name: Certificate name
|
2688 | f942a838 | Michael Hanselmann |
|
2689 | f942a838 | Michael Hanselmann | """
|
2690 | f942a838 | Michael Hanselmann | (cert_dir, key_file, cert_file) = _GetX509Filenames(cryptodir, name) |
2691 | f942a838 | Michael Hanselmann | |
2692 | f942a838 | Michael Hanselmann | utils.RemoveFile(key_file) |
2693 | f942a838 | Michael Hanselmann | utils.RemoveFile(cert_file) |
2694 | f942a838 | Michael Hanselmann | |
2695 | f942a838 | Michael Hanselmann | try:
|
2696 | f942a838 | Michael Hanselmann | os.rmdir(cert_dir) |
2697 | f942a838 | Michael Hanselmann | except EnvironmentError, err: |
2698 | f942a838 | Michael Hanselmann | _Fail("Cannot remove certificate directory '%s': %s",
|
2699 | f942a838 | Michael Hanselmann | cert_dir, err) |
2700 | f942a838 | Michael Hanselmann | |
2701 | f942a838 | Michael Hanselmann | |
2702 | 1651d116 | Michael Hanselmann | def _GetImportExportIoCommand(instance, mode, ieio, ieargs): |
2703 | 1651d116 | Michael Hanselmann | """Returns the command for the requested input/output.
|
2704 | 1651d116 | Michael Hanselmann |
|
2705 | 1651d116 | Michael Hanselmann | @type instance: L{objects.Instance}
|
2706 | 1651d116 | Michael Hanselmann | @param instance: The instance object
|
2707 | 1651d116 | Michael Hanselmann | @param mode: Import/export mode
|
2708 | 1651d116 | Michael Hanselmann | @param ieio: Input/output type
|
2709 | 1651d116 | Michael Hanselmann | @param ieargs: Input/output arguments
|
2710 | 1651d116 | Michael Hanselmann |
|
2711 | 1651d116 | Michael Hanselmann | """
|
2712 | 1651d116 | Michael Hanselmann | assert mode in (constants.IEM_IMPORT, constants.IEM_EXPORT) |
2713 | 1651d116 | Michael Hanselmann | |
2714 | 1651d116 | Michael Hanselmann | env = None
|
2715 | 1651d116 | Michael Hanselmann | prefix = None
|
2716 | 1651d116 | Michael Hanselmann | suffix = None
|
2717 | 2ad5550d | Michael Hanselmann | exp_size = None
|
2718 | 1651d116 | Michael Hanselmann | |
2719 | 1651d116 | Michael Hanselmann | if ieio == constants.IEIO_FILE:
|
2720 | 1651d116 | Michael Hanselmann | (filename, ) = ieargs |
2721 | 1651d116 | Michael Hanselmann | |
2722 | 1651d116 | Michael Hanselmann | if not utils.IsNormAbsPath(filename): |
2723 | 1651d116 | Michael Hanselmann | _Fail("Path '%s' is not normalized or absolute", filename)
|
2724 | 1651d116 | Michael Hanselmann | |
2725 | 1651d116 | Michael Hanselmann | directory = os.path.normpath(os.path.dirname(filename)) |
2726 | 1651d116 | Michael Hanselmann | |
2727 | 1651d116 | Michael Hanselmann | if (os.path.commonprefix([constants.EXPORT_DIR, directory]) !=
|
2728 | 1651d116 | Michael Hanselmann | constants.EXPORT_DIR): |
2729 | 1651d116 | Michael Hanselmann | _Fail("File '%s' is not under exports directory '%s'",
|
2730 | 1651d116 | Michael Hanselmann | filename, constants.EXPORT_DIR) |
2731 | 1651d116 | Michael Hanselmann | |
2732 | 1651d116 | Michael Hanselmann | # Create directory
|
2733 | 1651d116 | Michael Hanselmann | utils.Makedirs(directory, mode=0750)
|
2734 | 1651d116 | Michael Hanselmann | |
2735 | 1651d116 | Michael Hanselmann | quoted_filename = utils.ShellQuote(filename) |
2736 | 1651d116 | Michael Hanselmann | |
2737 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2738 | 1651d116 | Michael Hanselmann | suffix = "> %s" % quoted_filename
|
2739 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2740 | 1651d116 | Michael Hanselmann | suffix = "< %s" % quoted_filename
|
2741 | 1651d116 | Michael Hanselmann | |
2742 | 2ad5550d | Michael Hanselmann | # Retrieve file size
|
2743 | 2ad5550d | Michael Hanselmann | try:
|
2744 | 2ad5550d | Michael Hanselmann | st = os.stat(filename) |
2745 | 2ad5550d | Michael Hanselmann | except EnvironmentError, err: |
2746 | 2ad5550d | Michael Hanselmann | logging.error("Can't stat(2) %s: %s", filename, err)
|
2747 | 2ad5550d | Michael Hanselmann | else:
|
2748 | 2ad5550d | Michael Hanselmann | exp_size = utils.BytesToMebibyte(st.st_size) |
2749 | 2ad5550d | Michael Hanselmann | |
2750 | 1651d116 | Michael Hanselmann | elif ieio == constants.IEIO_RAW_DISK:
|
2751 | 1651d116 | Michael Hanselmann | (disk, ) = ieargs |
2752 | 1651d116 | Michael Hanselmann | |
2753 | 1651d116 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2754 | 1651d116 | Michael Hanselmann | |
2755 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2756 | 1651d116 | Michael Hanselmann | # we set here a smaller block size as, due to transport buffering, more
|
2757 | 1651d116 | Michael Hanselmann | # than 64-128k will mostly ignored; we use nocreat to fail if the device
|
2758 | 1651d116 | Michael Hanselmann | # is not already there or we pass a wrong path; we use notrunc to no
|
2759 | 1651d116 | Michael Hanselmann | # attempt truncate on an LV device; we use oflag=dsync to not buffer too
|
2760 | 1651d116 | Michael Hanselmann | # much memory; this means that at best, we flush every 64k, which will
|
2761 | 1651d116 | Michael Hanselmann | # not be very fast
|
2762 | 1651d116 | Michael Hanselmann | suffix = utils.BuildShellCmd(("| dd of=%s conv=nocreat,notrunc"
|
2763 | 1651d116 | Michael Hanselmann | " bs=%s oflag=dsync"),
|
2764 | 1651d116 | Michael Hanselmann | real_disk.dev_path, |
2765 | 1651d116 | Michael Hanselmann | str(64 * 1024)) |
2766 | 1651d116 | Michael Hanselmann | |
2767 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2768 | 1651d116 | Michael Hanselmann | # the block size on the read dd is 1MiB to match our units
|
2769 | 1651d116 | Michael Hanselmann | prefix = utils.BuildShellCmd("dd if=%s bs=%s count=%s |",
|
2770 | 1651d116 | Michael Hanselmann | real_disk.dev_path, |
2771 | 1651d116 | Michael Hanselmann | str(1024 * 1024), # 1 MB |
2772 | 1651d116 | Michael Hanselmann | str(disk.size))
|
2773 | 2ad5550d | Michael Hanselmann | exp_size = disk.size |
2774 | 1651d116 | Michael Hanselmann | |
2775 | 1651d116 | Michael Hanselmann | elif ieio == constants.IEIO_SCRIPT:
|
2776 | 1651d116 | Michael Hanselmann | (disk, disk_index, ) = ieargs |
2777 | 1651d116 | Michael Hanselmann | |
2778 | 1651d116 | Michael Hanselmann | assert isinstance(disk_index, (int, long)) |
2779 | 1651d116 | Michael Hanselmann | |
2780 | 1651d116 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2781 | 1651d116 | Michael Hanselmann | |
2782 | 1651d116 | Michael Hanselmann | inst_os = OSFromDisk(instance.os) |
2783 | 1651d116 | Michael Hanselmann | env = OSEnvironment(instance, inst_os) |
2784 | 1651d116 | Michael Hanselmann | |
2785 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2786 | 1651d116 | Michael Hanselmann | env["IMPORT_DEVICE"] = env["DISK_%d_PATH" % disk_index] |
2787 | 1651d116 | Michael Hanselmann | env["IMPORT_INDEX"] = str(disk_index) |
2788 | 1651d116 | Michael Hanselmann | script = inst_os.import_script |
2789 | 1651d116 | Michael Hanselmann | |
2790 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2791 | 1651d116 | Michael Hanselmann | env["EXPORT_DEVICE"] = real_disk.dev_path
|
2792 | 1651d116 | Michael Hanselmann | env["EXPORT_INDEX"] = str(disk_index) |
2793 | 1651d116 | Michael Hanselmann | script = inst_os.export_script |
2794 | 1651d116 | Michael Hanselmann | |
2795 | 1651d116 | Michael Hanselmann | # TODO: Pass special environment only to script
|
2796 | 1651d116 | Michael Hanselmann | script_cmd = utils.BuildShellCmd("( cd %s && %s; )", inst_os.path, script)
|
2797 | 1651d116 | Michael Hanselmann | |
2798 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2799 | 1651d116 | Michael Hanselmann | suffix = "| %s" % script_cmd
|
2800 | 1651d116 | Michael Hanselmann | |
2801 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2802 | 1651d116 | Michael Hanselmann | prefix = "%s |" % script_cmd
|
2803 | 1651d116 | Michael Hanselmann | |
2804 | 2ad5550d | Michael Hanselmann | # Let script predict size
|
2805 | 2ad5550d | Michael Hanselmann | exp_size = constants.IE_CUSTOM_SIZE |
2806 | 2ad5550d | Michael Hanselmann | |
2807 | 1651d116 | Michael Hanselmann | else:
|
2808 | 1651d116 | Michael Hanselmann | _Fail("Invalid %s I/O mode %r", mode, ieio)
|
2809 | 1651d116 | Michael Hanselmann | |
2810 | 2ad5550d | Michael Hanselmann | return (env, prefix, suffix, exp_size)
|
2811 | 1651d116 | Michael Hanselmann | |
2812 | 1651d116 | Michael Hanselmann | |
2813 | 1651d116 | Michael Hanselmann | def _CreateImportExportStatusDir(prefix): |
2814 | 1651d116 | Michael Hanselmann | """Creates status directory for import/export.
|
2815 | 1651d116 | Michael Hanselmann |
|
2816 | 1651d116 | Michael Hanselmann | """
|
2817 | 1651d116 | Michael Hanselmann | return tempfile.mkdtemp(dir=constants.IMPORT_EXPORT_DIR,
|
2818 | 1651d116 | Michael Hanselmann | prefix=("%s-%s-" %
|
2819 | 1651d116 | Michael Hanselmann | (prefix, utils.TimestampForFilename()))) |
2820 | 1651d116 | Michael Hanselmann | |
2821 | 1651d116 | Michael Hanselmann | |
2822 | eb630f50 | Michael Hanselmann | def StartImportExportDaemon(mode, opts, host, port, instance, ieio, ieioargs): |
2823 | 1651d116 | Michael Hanselmann | """Starts an import or export daemon.
|
2824 | 1651d116 | Michael Hanselmann |
|
2825 | 1651d116 | Michael Hanselmann | @param mode: Import/output mode
|
2826 | eb630f50 | Michael Hanselmann | @type opts: L{objects.ImportExportOptions}
|
2827 | eb630f50 | Michael Hanselmann | @param opts: Daemon options
|
2828 | 1651d116 | Michael Hanselmann | @type host: string
|
2829 | 1651d116 | Michael Hanselmann | @param host: Remote host for export (None for import)
|
2830 | 1651d116 | Michael Hanselmann | @type port: int
|
2831 | 1651d116 | Michael Hanselmann | @param port: Remote port for export (None for import)
|
2832 | 1651d116 | Michael Hanselmann | @type instance: L{objects.Instance}
|
2833 | 1651d116 | Michael Hanselmann | @param instance: Instance object
|
2834 | 1651d116 | Michael Hanselmann | @param ieio: Input/output type
|
2835 | 1651d116 | Michael Hanselmann | @param ieioargs: Input/output arguments
|
2836 | 1651d116 | Michael Hanselmann |
|
2837 | 1651d116 | Michael Hanselmann | """
|
2838 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2839 | 1651d116 | Michael Hanselmann | prefix = "import"
|
2840 | 1651d116 | Michael Hanselmann | |
2841 | 1651d116 | Michael Hanselmann | if not (host is None and port is None): |
2842 | 1651d116 | Michael Hanselmann | _Fail("Can not specify host or port on import")
|
2843 | 1651d116 | Michael Hanselmann | |
2844 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2845 | 1651d116 | Michael Hanselmann | prefix = "export"
|
2846 | 1651d116 | Michael Hanselmann | |
2847 | 1651d116 | Michael Hanselmann | if host is None or port is None: |
2848 | 1651d116 | Michael Hanselmann | _Fail("Host and port must be specified for an export")
|
2849 | 1651d116 | Michael Hanselmann | |
2850 | 1651d116 | Michael Hanselmann | else:
|
2851 | 1651d116 | Michael Hanselmann | _Fail("Invalid mode %r", mode)
|
2852 | 1651d116 | Michael Hanselmann | |
2853 | eb630f50 | Michael Hanselmann | if (opts.key_name is None) ^ (opts.ca_pem is None): |
2854 | 1651d116 | Michael Hanselmann | _Fail("Cluster certificate can only be used for both key and CA")
|
2855 | 1651d116 | Michael Hanselmann | |
2856 | 2ad5550d | Michael Hanselmann | (cmd_env, cmd_prefix, cmd_suffix, exp_size) = \ |
2857 | 1651d116 | Michael Hanselmann | _GetImportExportIoCommand(instance, mode, ieio, ieioargs) |
2858 | 1651d116 | Michael Hanselmann | |
2859 | eb630f50 | Michael Hanselmann | if opts.key_name is None: |
2860 | 1651d116 | Michael Hanselmann | # Use server.pem
|
2861 | 1651d116 | Michael Hanselmann | key_path = constants.NODED_CERT_FILE |
2862 | 1651d116 | Michael Hanselmann | cert_path = constants.NODED_CERT_FILE |
2863 | eb630f50 | Michael Hanselmann | assert opts.ca_pem is None |
2864 | 1651d116 | Michael Hanselmann | else:
|
2865 | 1651d116 | Michael Hanselmann | (_, key_path, cert_path) = _GetX509Filenames(constants.CRYPTO_KEYS_DIR, |
2866 | eb630f50 | Michael Hanselmann | opts.key_name) |
2867 | eb630f50 | Michael Hanselmann | assert opts.ca_pem is not None |
2868 | 1651d116 | Michael Hanselmann | |
2869 | 63bcea2a | Michael Hanselmann | for i in [key_path, cert_path]: |
2870 | dcaabc4f | Michael Hanselmann | if not os.path.exists(i): |
2871 | 63bcea2a | Michael Hanselmann | _Fail("File '%s' does not exist" % i)
|
2872 | 63bcea2a | Michael Hanselmann | |
2873 | 1651d116 | Michael Hanselmann | status_dir = _CreateImportExportStatusDir(prefix) |
2874 | 1651d116 | Michael Hanselmann | try:
|
2875 | 1651d116 | Michael Hanselmann | status_file = utils.PathJoin(status_dir, _IES_STATUS_FILE) |
2876 | 1651d116 | Michael Hanselmann | pid_file = utils.PathJoin(status_dir, _IES_PID_FILE) |
2877 | 63bcea2a | Michael Hanselmann | ca_file = utils.PathJoin(status_dir, _IES_CA_FILE) |
2878 | 1651d116 | Michael Hanselmann | |
2879 | eb630f50 | Michael Hanselmann | if opts.ca_pem is None: |
2880 | 1651d116 | Michael Hanselmann | # Use server.pem
|
2881 | 63bcea2a | Michael Hanselmann | ca = utils.ReadFile(constants.NODED_CERT_FILE) |
2882 | eb630f50 | Michael Hanselmann | else:
|
2883 | eb630f50 | Michael Hanselmann | ca = opts.ca_pem |
2884 | 63bcea2a | Michael Hanselmann | |
2885 | eb630f50 | Michael Hanselmann | # Write CA file
|
2886 | 63bcea2a | Michael Hanselmann | utils.WriteFile(ca_file, data=ca, mode=0400)
|
2887 | 1651d116 | Michael Hanselmann | |
2888 | 1651d116 | Michael Hanselmann | cmd = [ |
2889 | 1651d116 | Michael Hanselmann | constants.IMPORT_EXPORT_DAEMON, |
2890 | 1651d116 | Michael Hanselmann | status_file, mode, |
2891 | 1651d116 | Michael Hanselmann | "--key=%s" % key_path,
|
2892 | 1651d116 | Michael Hanselmann | "--cert=%s" % cert_path,
|
2893 | 63bcea2a | Michael Hanselmann | "--ca=%s" % ca_file,
|
2894 | 1651d116 | Michael Hanselmann | ] |
2895 | 1651d116 | Michael Hanselmann | |
2896 | 1651d116 | Michael Hanselmann | if host:
|
2897 | 1651d116 | Michael Hanselmann | cmd.append("--host=%s" % host)
|
2898 | 1651d116 | Michael Hanselmann | |
2899 | 1651d116 | Michael Hanselmann | if port:
|
2900 | 1651d116 | Michael Hanselmann | cmd.append("--port=%s" % port)
|
2901 | 1651d116 | Michael Hanselmann | |
2902 | 855d2fc7 | Michael Hanselmann | if opts.ipv6:
|
2903 | 855d2fc7 | Michael Hanselmann | cmd.append("--ipv6")
|
2904 | 855d2fc7 | Michael Hanselmann | else:
|
2905 | 855d2fc7 | Michael Hanselmann | cmd.append("--ipv4")
|
2906 | 855d2fc7 | Michael Hanselmann | |
2907 | a5310c2a | Michael Hanselmann | if opts.compress:
|
2908 | a5310c2a | Michael Hanselmann | cmd.append("--compress=%s" % opts.compress)
|
2909 | a5310c2a | Michael Hanselmann | |
2910 | af1d39b1 | Michael Hanselmann | if opts.magic:
|
2911 | af1d39b1 | Michael Hanselmann | cmd.append("--magic=%s" % opts.magic)
|
2912 | af1d39b1 | Michael Hanselmann | |
2913 | 2ad5550d | Michael Hanselmann | if exp_size is not None: |
2914 | 2ad5550d | Michael Hanselmann | cmd.append("--expected-size=%s" % exp_size)
|
2915 | 2ad5550d | Michael Hanselmann | |
2916 | 1651d116 | Michael Hanselmann | if cmd_prefix:
|
2917 | 1651d116 | Michael Hanselmann | cmd.append("--cmd-prefix=%s" % cmd_prefix)
|
2918 | 1651d116 | Michael Hanselmann | |
2919 | 1651d116 | Michael Hanselmann | if cmd_suffix:
|
2920 | 1651d116 | Michael Hanselmann | cmd.append("--cmd-suffix=%s" % cmd_suffix)
|
2921 | 1651d116 | Michael Hanselmann | |
2922 | 1651d116 | Michael Hanselmann | logfile = _InstanceLogName(prefix, instance.os, instance.name) |
2923 | 1651d116 | Michael Hanselmann | |
2924 | 1651d116 | Michael Hanselmann | # TODO: Once _InstanceLogName uses tempfile.mkstemp, StartDaemon has
|
2925 | 1651d116 | Michael Hanselmann | # support for receiving a file descriptor for output
|
2926 | 1651d116 | Michael Hanselmann | utils.StartDaemon(cmd, env=cmd_env, pidfile=pid_file, |
2927 | 1651d116 | Michael Hanselmann | output=logfile) |
2928 | 1651d116 | Michael Hanselmann | |
2929 | 1651d116 | Michael Hanselmann | # The import/export name is simply the status directory name
|
2930 | 1651d116 | Michael Hanselmann | return os.path.basename(status_dir)
|
2931 | 1651d116 | Michael Hanselmann | |
2932 | 1651d116 | Michael Hanselmann | except Exception: |
2933 | 1651d116 | Michael Hanselmann | shutil.rmtree(status_dir, ignore_errors=True)
|
2934 | 1651d116 | Michael Hanselmann | raise
|
2935 | 1651d116 | Michael Hanselmann | |
2936 | 1651d116 | Michael Hanselmann | |
2937 | 1651d116 | Michael Hanselmann | def GetImportExportStatus(names): |
2938 | 1651d116 | Michael Hanselmann | """Returns import/export daemon status.
|
2939 | 1651d116 | Michael Hanselmann |
|
2940 | 1651d116 | Michael Hanselmann | @type names: sequence
|
2941 | 1651d116 | Michael Hanselmann | @param names: List of names
|
2942 | 1651d116 | Michael Hanselmann | @rtype: List of dicts
|
2943 | 1651d116 | Michael Hanselmann | @return: Returns a list of the state of each named import/export or None if a
|
2944 | 1651d116 | Michael Hanselmann | status couldn't be read
|
2945 | 1651d116 | Michael Hanselmann |
|
2946 | 1651d116 | Michael Hanselmann | """
|
2947 | 1651d116 | Michael Hanselmann | result = [] |
2948 | 1651d116 | Michael Hanselmann | |
2949 | 1651d116 | Michael Hanselmann | for name in names: |
2950 | 1651d116 | Michael Hanselmann | status_file = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name, |
2951 | 1651d116 | Michael Hanselmann | _IES_STATUS_FILE) |
2952 | 1651d116 | Michael Hanselmann | |
2953 | 1651d116 | Michael Hanselmann | try:
|
2954 | 1651d116 | Michael Hanselmann | data = utils.ReadFile(status_file) |
2955 | 1651d116 | Michael Hanselmann | except EnvironmentError, err: |
2956 | 1651d116 | Michael Hanselmann | if err.errno != errno.ENOENT:
|
2957 | 1651d116 | Michael Hanselmann | raise
|
2958 | 1651d116 | Michael Hanselmann | data = None
|
2959 | 1651d116 | Michael Hanselmann | |
2960 | 1651d116 | Michael Hanselmann | if not data: |
2961 | 1651d116 | Michael Hanselmann | result.append(None)
|
2962 | 1651d116 | Michael Hanselmann | continue
|
2963 | 1651d116 | Michael Hanselmann | |
2964 | 1651d116 | Michael Hanselmann | result.append(serializer.LoadJson(data)) |
2965 | 1651d116 | Michael Hanselmann | |
2966 | 1651d116 | Michael Hanselmann | return result
|
2967 | 1651d116 | Michael Hanselmann | |
2968 | 1651d116 | Michael Hanselmann | |
2969 | f81c4737 | Michael Hanselmann | def AbortImportExport(name): |
2970 | f81c4737 | Michael Hanselmann | """Sends SIGTERM to a running import/export daemon.
|
2971 | f81c4737 | Michael Hanselmann |
|
2972 | f81c4737 | Michael Hanselmann | """
|
2973 | f81c4737 | Michael Hanselmann | logging.info("Abort import/export %s", name)
|
2974 | f81c4737 | Michael Hanselmann | |
2975 | f81c4737 | Michael Hanselmann | status_dir = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name) |
2976 | f81c4737 | Michael Hanselmann | pid = utils.ReadLockedPidFile(utils.PathJoin(status_dir, _IES_PID_FILE)) |
2977 | f81c4737 | Michael Hanselmann | |
2978 | f81c4737 | Michael Hanselmann | if pid:
|
2979 | f81c4737 | Michael Hanselmann | logging.info("Import/export %s is running with PID %s, sending SIGTERM",
|
2980 | f81c4737 | Michael Hanselmann | name, pid) |
2981 | 560cbec1 | Michael Hanselmann | utils.IgnoreProcessNotFound(os.kill, pid, signal.SIGTERM) |
2982 | f81c4737 | Michael Hanselmann | |
2983 | f81c4737 | Michael Hanselmann | |
2984 | 1651d116 | Michael Hanselmann | def CleanupImportExport(name): |
2985 | 1651d116 | Michael Hanselmann | """Cleanup after an import or export.
|
2986 | 1651d116 | Michael Hanselmann |
|
2987 | 1651d116 | Michael Hanselmann | If the import/export daemon is still running it's killed. Afterwards the
|
2988 | 1651d116 | Michael Hanselmann | whole status directory is removed.
|
2989 | 1651d116 | Michael Hanselmann |
|
2990 | 1651d116 | Michael Hanselmann | """
|
2991 | 1651d116 | Michael Hanselmann | logging.info("Finalizing import/export %s", name)
|
2992 | 1651d116 | Michael Hanselmann | |
2993 | 1651d116 | Michael Hanselmann | status_dir = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name) |
2994 | 1651d116 | Michael Hanselmann | |
2995 | debed9ae | Michael Hanselmann | pid = utils.ReadLockedPidFile(utils.PathJoin(status_dir, _IES_PID_FILE)) |
2996 | 1651d116 | Michael Hanselmann | |
2997 | 1651d116 | Michael Hanselmann | if pid:
|
2998 | 1651d116 | Michael Hanselmann | logging.info("Import/export %s is still running with PID %s",
|
2999 | 1651d116 | Michael Hanselmann | name, pid) |
3000 | 1651d116 | Michael Hanselmann | utils.KillProcess(pid, waitpid=False)
|
3001 | 1651d116 | Michael Hanselmann | |
3002 | 1651d116 | Michael Hanselmann | shutil.rmtree(status_dir, ignore_errors=True)
|
3003 | 1651d116 | Michael Hanselmann | |
3004 | 1651d116 | Michael Hanselmann | |
3005 | 6b93ec9d | Iustin Pop | def _FindDisks(nodes_ip, disks): |
3006 | 6b93ec9d | Iustin Pop | """Sets the physical ID on disks and returns the block devices.
|
3007 | 6b93ec9d | Iustin Pop |
|
3008 | 6b93ec9d | Iustin Pop | """
|
3009 | 6b93ec9d | Iustin Pop | # set the correct physical ID
|
3010 | b705c7a6 | Manuel Franceschini | my_name = netutils.Hostname.GetSysName() |
3011 | 6b93ec9d | Iustin Pop | for cf in disks: |
3012 | 6b93ec9d | Iustin Pop | cf.SetPhysicalID(my_name, nodes_ip) |
3013 | 6b93ec9d | Iustin Pop | |
3014 | 6b93ec9d | Iustin Pop | bdevs = [] |
3015 | 6b93ec9d | Iustin Pop | |
3016 | 6b93ec9d | Iustin Pop | for cf in disks: |
3017 | 6b93ec9d | Iustin Pop | rd = _RecursiveFindBD(cf) |
3018 | 6b93ec9d | Iustin Pop | if rd is None: |
3019 | 5a533f8a | Iustin Pop | _Fail("Can't find device %s", cf)
|
3020 | 6b93ec9d | Iustin Pop | bdevs.append(rd) |
3021 | 5a533f8a | Iustin Pop | return bdevs
|
3022 | 6b93ec9d | Iustin Pop | |
3023 | 6b93ec9d | Iustin Pop | |
3024 | 6b93ec9d | Iustin Pop | def DrbdDisconnectNet(nodes_ip, disks): |
3025 | 6b93ec9d | Iustin Pop | """Disconnects the network on a list of drbd devices.
|
3026 | 6b93ec9d | Iustin Pop |
|
3027 | 6b93ec9d | Iustin Pop | """
|
3028 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
3029 | 6b93ec9d | Iustin Pop | |
3030 | 6b93ec9d | Iustin Pop | # disconnect disks
|
3031 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3032 | 6b93ec9d | Iustin Pop | try:
|
3033 | 6b93ec9d | Iustin Pop | rd.DisconnectNet() |
3034 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
3035 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration to standalone mode: %s",
|
3036 | 2cc6781a | Iustin Pop | err, exc=True)
|
3037 | 6b93ec9d | Iustin Pop | |
3038 | 6b93ec9d | Iustin Pop | |
3039 | 6b93ec9d | Iustin Pop | def DrbdAttachNet(nodes_ip, disks, instance_name, multimaster): |
3040 | 6b93ec9d | Iustin Pop | """Attaches the network on a list of drbd devices.
|
3041 | 6b93ec9d | Iustin Pop |
|
3042 | 6b93ec9d | Iustin Pop | """
|
3043 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
3044 | 6b93ec9d | Iustin Pop | |
3045 | 6b93ec9d | Iustin Pop | if multimaster:
|
3046 | 53c776b5 | Iustin Pop | for idx, rd in enumerate(bdevs): |
3047 | 6b93ec9d | Iustin Pop | try:
|
3048 | 53c776b5 | Iustin Pop | _SymlinkBlockDev(instance_name, rd.dev_path, idx) |
3049 | 6b93ec9d | Iustin Pop | except EnvironmentError, err: |
3050 | 2cc6781a | Iustin Pop | _Fail("Can't create symlink: %s", err)
|
3051 | 6b93ec9d | Iustin Pop | # reconnect disks, switch to new master configuration and if
|
3052 | 6b93ec9d | Iustin Pop | # needed primary mode
|
3053 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3054 | 6b93ec9d | Iustin Pop | try:
|
3055 | 6b93ec9d | Iustin Pop | rd.AttachNet(multimaster) |
3056 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
3057 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration: %s", err)
|
3058 | 3c0cdc83 | Michael Hanselmann | |
3059 | 6b93ec9d | Iustin Pop | # wait until the disks are connected; we need to retry the re-attach
|
3060 | 6b93ec9d | Iustin Pop | # if the device becomes standalone, as this might happen if the one
|
3061 | 6b93ec9d | Iustin Pop | # node disconnects and reconnects in a different mode before the
|
3062 | 6b93ec9d | Iustin Pop | # other node reconnects; in this case, one or both of the nodes will
|
3063 | 6b93ec9d | Iustin Pop | # decide it has wrong configuration and switch to standalone
|
3064 | 3c0cdc83 | Michael Hanselmann | |
3065 | 3c0cdc83 | Michael Hanselmann | def _Attach(): |
3066 | 6b93ec9d | Iustin Pop | all_connected = True
|
3067 | 3c0cdc83 | Michael Hanselmann | |
3068 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3069 | 6b93ec9d | Iustin Pop | stats = rd.GetProcStatus() |
3070 | 3c0cdc83 | Michael Hanselmann | |
3071 | 3c0cdc83 | Michael Hanselmann | all_connected = (all_connected and
|
3072 | 3c0cdc83 | Michael Hanselmann | (stats.is_connected or stats.is_in_resync))
|
3073 | 3c0cdc83 | Michael Hanselmann | |
3074 | 6b93ec9d | Iustin Pop | if stats.is_standalone:
|
3075 | 6b93ec9d | Iustin Pop | # peer had different config info and this node became
|
3076 | 6b93ec9d | Iustin Pop | # standalone, even though this should not happen with the
|
3077 | 6b93ec9d | Iustin Pop | # new staged way of changing disk configs
|
3078 | 6b93ec9d | Iustin Pop | try:
|
3079 | c738375b | Iustin Pop | rd.AttachNet(multimaster) |
3080 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
3081 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration: %s", err)
|
3082 | 3c0cdc83 | Michael Hanselmann | |
3083 | 3c0cdc83 | Michael Hanselmann | if not all_connected: |
3084 | 3c0cdc83 | Michael Hanselmann | raise utils.RetryAgain()
|
3085 | 3c0cdc83 | Michael Hanselmann | |
3086 | 3c0cdc83 | Michael Hanselmann | try:
|
3087 | 3c0cdc83 | Michael Hanselmann | # Start with a delay of 100 miliseconds and go up to 5 seconds
|
3088 | 3c0cdc83 | Michael Hanselmann | utils.Retry(_Attach, (0.1, 1.5, 5.0), 2 * 60) |
3089 | 3c0cdc83 | Michael Hanselmann | except utils.RetryTimeout:
|
3090 | afdc3985 | Iustin Pop | _Fail("Timeout in disk reconnecting")
|
3091 | 3c0cdc83 | Michael Hanselmann | |
3092 | 6b93ec9d | Iustin Pop | if multimaster:
|
3093 | 6b93ec9d | Iustin Pop | # change to primary mode
|
3094 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3095 | d3da87b8 | Iustin Pop | try:
|
3096 | d3da87b8 | Iustin Pop | rd.Open() |
3097 | d3da87b8 | Iustin Pop | except errors.BlockDeviceError, err:
|
3098 | 2cc6781a | Iustin Pop | _Fail("Can't change to primary mode: %s", err)
|
3099 | 6b93ec9d | Iustin Pop | |
3100 | 6b93ec9d | Iustin Pop | |
3101 | 6b93ec9d | Iustin Pop | def DrbdWaitSync(nodes_ip, disks): |
3102 | 6b93ec9d | Iustin Pop | """Wait until DRBDs have synchronized.
|
3103 | 6b93ec9d | Iustin Pop |
|
3104 | 6b93ec9d | Iustin Pop | """
|
3105 | db8667b7 | Iustin Pop | def _helper(rd): |
3106 | db8667b7 | Iustin Pop | stats = rd.GetProcStatus() |
3107 | db8667b7 | Iustin Pop | if not (stats.is_connected or stats.is_in_resync): |
3108 | db8667b7 | Iustin Pop | raise utils.RetryAgain()
|
3109 | db8667b7 | Iustin Pop | return stats
|
3110 | db8667b7 | Iustin Pop | |
3111 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
3112 | 6b93ec9d | Iustin Pop | |
3113 | 6b93ec9d | Iustin Pop | min_resync = 100
|
3114 | 6b93ec9d | Iustin Pop | alldone = True
|
3115 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3116 | db8667b7 | Iustin Pop | try:
|
3117 | db8667b7 | Iustin Pop | # poll each second for 15 seconds
|
3118 | db8667b7 | Iustin Pop | stats = utils.Retry(_helper, 1, 15, args=[rd]) |
3119 | db8667b7 | Iustin Pop | except utils.RetryTimeout:
|
3120 | db8667b7 | Iustin Pop | stats = rd.GetProcStatus() |
3121 | db8667b7 | Iustin Pop | # last check
|
3122 | db8667b7 | Iustin Pop | if not (stats.is_connected or stats.is_in_resync): |
3123 | db8667b7 | Iustin Pop | _Fail("DRBD device %s is not in sync: stats=%s", rd, stats)
|
3124 | 6b93ec9d | Iustin Pop | alldone = alldone and (not stats.is_in_resync) |
3125 | 6b93ec9d | Iustin Pop | if stats.sync_percent is not None: |
3126 | 6b93ec9d | Iustin Pop | min_resync = min(min_resync, stats.sync_percent)
|
3127 | afdc3985 | Iustin Pop | |
3128 | c26a6bd2 | Iustin Pop | return (alldone, min_resync)
|
3129 | 6b93ec9d | Iustin Pop | |
3130 | 6b93ec9d | Iustin Pop | |
3131 | c46b9782 | Luca Bigliardi | def GetDrbdUsermodeHelper(): |
3132 | c46b9782 | Luca Bigliardi | """Returns DRBD usermode helper currently configured.
|
3133 | c46b9782 | Luca Bigliardi |
|
3134 | c46b9782 | Luca Bigliardi | """
|
3135 | c46b9782 | Luca Bigliardi | try:
|
3136 | c46b9782 | Luca Bigliardi | return bdev.BaseDRBD.GetUsermodeHelper()
|
3137 | c46b9782 | Luca Bigliardi | except errors.BlockDeviceError, err:
|
3138 | c46b9782 | Luca Bigliardi | _Fail(str(err))
|
3139 | c46b9782 | Luca Bigliardi | |
3140 | c46b9782 | Luca Bigliardi | |
3141 | f5118ade | Iustin Pop | def PowercycleNode(hypervisor_type): |
3142 | f5118ade | Iustin Pop | """Hard-powercycle the node.
|
3143 | f5118ade | Iustin Pop |
|
3144 | f5118ade | Iustin Pop | Because we need to return first, and schedule the powercycle in the
|
3145 | f5118ade | Iustin Pop | background, we won't be able to report failures nicely.
|
3146 | f5118ade | Iustin Pop |
|
3147 | f5118ade | Iustin Pop | """
|
3148 | f5118ade | Iustin Pop | hyper = hypervisor.GetHypervisor(hypervisor_type) |
3149 | f5118ade | Iustin Pop | try:
|
3150 | f5118ade | Iustin Pop | pid = os.fork() |
3151 | 29921401 | Iustin Pop | except OSError: |
3152 | f5118ade | Iustin Pop | # if we can't fork, we'll pretend that we're in the child process
|
3153 | f5118ade | Iustin Pop | pid = 0
|
3154 | f5118ade | Iustin Pop | if pid > 0: |
3155 | c26a6bd2 | Iustin Pop | return "Reboot scheduled in 5 seconds" |
3156 | 1af6ac0f | Luca Bigliardi | # ensure the child is running on ram
|
3157 | 1af6ac0f | Luca Bigliardi | try:
|
3158 | 1af6ac0f | Luca Bigliardi | utils.Mlockall() |
3159 | 20601361 | Luca Bigliardi | except Exception: # pylint: disable-msg=W0703 |
3160 | 1af6ac0f | Luca Bigliardi | pass
|
3161 | f5118ade | Iustin Pop | time.sleep(5)
|
3162 | f5118ade | Iustin Pop | hyper.PowercycleNode() |
3163 | f5118ade | Iustin Pop | |
3164 | f5118ade | Iustin Pop | |
3165 | a8083063 | Iustin Pop | class HooksRunner(object): |
3166 | a8083063 | Iustin Pop | """Hook runner.
|
3167 | a8083063 | Iustin Pop |
|
3168 | 10c2650b | Iustin Pop | This class is instantiated on the node side (ganeti-noded) and not
|
3169 | 10c2650b | Iustin Pop | on the master side.
|
3170 | a8083063 | Iustin Pop |
|
3171 | a8083063 | Iustin Pop | """
|
3172 | a8083063 | Iustin Pop | def __init__(self, hooks_base_dir=None): |
3173 | a8083063 | Iustin Pop | """Constructor for hooks runner.
|
3174 | a8083063 | Iustin Pop |
|
3175 | 10c2650b | Iustin Pop | @type hooks_base_dir: str or None
|
3176 | 10c2650b | Iustin Pop | @param hooks_base_dir: if not None, this overrides the
|
3177 | 10c2650b | Iustin Pop | L{constants.HOOKS_BASE_DIR} (useful for unittests)
|
3178 | a8083063 | Iustin Pop |
|
3179 | a8083063 | Iustin Pop | """
|
3180 | a8083063 | Iustin Pop | if hooks_base_dir is None: |
3181 | a8083063 | Iustin Pop | hooks_base_dir = constants.HOOKS_BASE_DIR |
3182 | fe267188 | Iustin Pop | # yeah, _BASE_DIR is not valid for attributes, we use it like a
|
3183 | fe267188 | Iustin Pop | # constant
|
3184 | fe267188 | Iustin Pop | self._BASE_DIR = hooks_base_dir # pylint: disable-msg=C0103 |
3185 | a8083063 | Iustin Pop | |
3186 | a8083063 | Iustin Pop | def RunHooks(self, hpath, phase, env): |
3187 | a8083063 | Iustin Pop | """Run the scripts in the hooks directory.
|
3188 | a8083063 | Iustin Pop |
|
3189 | 10c2650b | Iustin Pop | @type hpath: str
|
3190 | 10c2650b | Iustin Pop | @param hpath: the path to the hooks directory which
|
3191 | 10c2650b | Iustin Pop | holds the scripts
|
3192 | 10c2650b | Iustin Pop | @type phase: str
|
3193 | 10c2650b | Iustin Pop | @param phase: either L{constants.HOOKS_PHASE_PRE} or
|
3194 | 10c2650b | Iustin Pop | L{constants.HOOKS_PHASE_POST}
|
3195 | 10c2650b | Iustin Pop | @type env: dict
|
3196 | 10c2650b | Iustin Pop | @param env: dictionary with the environment for the hook
|
3197 | 10c2650b | Iustin Pop | @rtype: list
|
3198 | 10c2650b | Iustin Pop | @return: list of 3-element tuples:
|
3199 | 10c2650b | Iustin Pop | - script path
|
3200 | 10c2650b | Iustin Pop | - script result, either L{constants.HKR_SUCCESS} or
|
3201 | 10c2650b | Iustin Pop | L{constants.HKR_FAIL}
|
3202 | 10c2650b | Iustin Pop | - output of the script
|
3203 | 10c2650b | Iustin Pop |
|
3204 | 10c2650b | Iustin Pop | @raise errors.ProgrammerError: for invalid input
|
3205 | 10c2650b | Iustin Pop | parameters
|
3206 | a8083063 | Iustin Pop |
|
3207 | a8083063 | Iustin Pop | """
|
3208 | a8083063 | Iustin Pop | if phase == constants.HOOKS_PHASE_PRE:
|
3209 | a8083063 | Iustin Pop | suffix = "pre"
|
3210 | a8083063 | Iustin Pop | elif phase == constants.HOOKS_PHASE_POST:
|
3211 | a8083063 | Iustin Pop | suffix = "post"
|
3212 | a8083063 | Iustin Pop | else:
|
3213 | 3fb4f740 | Iustin Pop | _Fail("Unknown hooks phase '%s'", phase)
|
3214 | 3fb4f740 | Iustin Pop | |
3215 | a8083063 | Iustin Pop | |
3216 | a8083063 | Iustin Pop | subdir = "%s-%s.d" % (hpath, suffix)
|
3217 | 0411c011 | Iustin Pop | dir_name = utils.PathJoin(self._BASE_DIR, subdir)
|
3218 | 6bb65e3a | Guido Trotter | |
3219 | 6bb65e3a | Guido Trotter | results = [] |
3220 | a9b7e346 | Iustin Pop | |
3221 | a9b7e346 | Iustin Pop | if not os.path.isdir(dir_name): |
3222 | a9b7e346 | Iustin Pop | # for non-existing/non-dirs, we simply exit instead of logging a
|
3223 | a9b7e346 | Iustin Pop | # warning at every operation
|
3224 | a9b7e346 | Iustin Pop | return results
|
3225 | a9b7e346 | Iustin Pop | |
3226 | a9b7e346 | Iustin Pop | runparts_results = utils.RunParts(dir_name, env=env, reset_env=True)
|
3227 | a9b7e346 | Iustin Pop | |
3228 | 6bb65e3a | Guido Trotter | for (relname, relstatus, runresult) in runparts_results: |
3229 | 6bb65e3a | Guido Trotter | if relstatus == constants.RUNPARTS_SKIP:
|
3230 | a8083063 | Iustin Pop | rrval = constants.HKR_SKIP |
3231 | a8083063 | Iustin Pop | output = ""
|
3232 | 6bb65e3a | Guido Trotter | elif relstatus == constants.RUNPARTS_ERR:
|
3233 | 6bb65e3a | Guido Trotter | rrval = constants.HKR_FAIL |
3234 | 6bb65e3a | Guido Trotter | output = "Hook script execution error: %s" % runresult
|
3235 | 6bb65e3a | Guido Trotter | elif relstatus == constants.RUNPARTS_RUN:
|
3236 | 6bb65e3a | Guido Trotter | if runresult.failed:
|
3237 | a8083063 | Iustin Pop | rrval = constants.HKR_FAIL |
3238 | a8083063 | Iustin Pop | else:
|
3239 | 6bb65e3a | Guido Trotter | rrval = constants.HKR_SUCCESS |
3240 | 6bb65e3a | Guido Trotter | output = utils.SafeEncode(runresult.output.strip()) |
3241 | 6bb65e3a | Guido Trotter | results.append(("%s/%s" % (subdir, relname), rrval, output))
|
3242 | 6bb65e3a | Guido Trotter | |
3243 | 6bb65e3a | Guido Trotter | return results
|
3244 | 3f78eef2 | Iustin Pop | |
3245 | 3f78eef2 | Iustin Pop | |
3246 | 8d528b7c | Iustin Pop | class IAllocatorRunner(object): |
3247 | 8d528b7c | Iustin Pop | """IAllocator runner.
|
3248 | 8d528b7c | Iustin Pop |
|
3249 | 8d528b7c | Iustin Pop | This class is instantiated on the node side (ganeti-noded) and not on
|
3250 | 8d528b7c | Iustin Pop | the master side.
|
3251 | 8d528b7c | Iustin Pop |
|
3252 | 8d528b7c | Iustin Pop | """
|
3253 | 7e950d31 | Iustin Pop | @staticmethod
|
3254 | 7e950d31 | Iustin Pop | def Run(name, idata): |
3255 | 8d528b7c | Iustin Pop | """Run an iallocator script.
|
3256 | 8d528b7c | Iustin Pop |
|
3257 | 10c2650b | Iustin Pop | @type name: str
|
3258 | 10c2650b | Iustin Pop | @param name: the iallocator script name
|
3259 | 10c2650b | Iustin Pop | @type idata: str
|
3260 | 10c2650b | Iustin Pop | @param idata: the allocator input data
|
3261 | 10c2650b | Iustin Pop |
|
3262 | 10c2650b | Iustin Pop | @rtype: tuple
|
3263 | 87f5c298 | Iustin Pop | @return: two element tuple of:
|
3264 | 87f5c298 | Iustin Pop | - status
|
3265 | 87f5c298 | Iustin Pop | - either error message or stdout of allocator (for success)
|
3266 | 8d528b7c | Iustin Pop |
|
3267 | 8d528b7c | Iustin Pop | """
|
3268 | 8d528b7c | Iustin Pop | alloc_script = utils.FindFile(name, constants.IALLOCATOR_SEARCH_PATH, |
3269 | 8d528b7c | Iustin Pop | os.path.isfile) |
3270 | 8d528b7c | Iustin Pop | if alloc_script is None: |
3271 | 87f5c298 | Iustin Pop | _Fail("iallocator module '%s' not found in the search path", name)
|
3272 | 8d528b7c | Iustin Pop | |
3273 | 8d528b7c | Iustin Pop | fd, fin_name = tempfile.mkstemp(prefix="ganeti-iallocator.")
|
3274 | 8d528b7c | Iustin Pop | try:
|
3275 | 8d528b7c | Iustin Pop | os.write(fd, idata) |
3276 | 8d528b7c | Iustin Pop | os.close(fd) |
3277 | 8d528b7c | Iustin Pop | result = utils.RunCmd([alloc_script, fin_name]) |
3278 | 8d528b7c | Iustin Pop | if result.failed:
|
3279 | 87f5c298 | Iustin Pop | _Fail("iallocator module '%s' failed: %s, output '%s'",
|
3280 | 87f5c298 | Iustin Pop | name, result.fail_reason, result.output) |
3281 | 8d528b7c | Iustin Pop | finally:
|
3282 | 8d528b7c | Iustin Pop | os.unlink(fin_name) |
3283 | 8d528b7c | Iustin Pop | |
3284 | c26a6bd2 | Iustin Pop | return result.stdout
|
3285 | 8d528b7c | Iustin Pop | |
3286 | 8d528b7c | Iustin Pop | |
3287 | 3f78eef2 | Iustin Pop | class DevCacheManager(object): |
3288 | c99a3cc0 | Manuel Franceschini | """Simple class for managing a cache of block device information.
|
3289 | 3f78eef2 | Iustin Pop |
|
3290 | 3f78eef2 | Iustin Pop | """
|
3291 | 3f78eef2 | Iustin Pop | _DEV_PREFIX = "/dev/"
|
3292 | 3f78eef2 | Iustin Pop | _ROOT_DIR = constants.BDEV_CACHE_DIR |
3293 | 3f78eef2 | Iustin Pop | |
3294 | 3f78eef2 | Iustin Pop | @classmethod
|
3295 | 3f78eef2 | Iustin Pop | def _ConvertPath(cls, dev_path): |
3296 | 3f78eef2 | Iustin Pop | """Converts a /dev/name path to the cache file name.
|
3297 | 3f78eef2 | Iustin Pop |
|
3298 | 3f78eef2 | Iustin Pop | This replaces slashes with underscores and strips the /dev
|
3299 | 10c2650b | Iustin Pop | prefix. It then returns the full path to the cache file.
|
3300 | 10c2650b | Iustin Pop |
|
3301 | 10c2650b | Iustin Pop | @type dev_path: str
|
3302 | 10c2650b | Iustin Pop | @param dev_path: the C{/dev/} path name
|
3303 | 10c2650b | Iustin Pop | @rtype: str
|
3304 | 10c2650b | Iustin Pop | @return: the converted path name
|
3305 | 3f78eef2 | Iustin Pop |
|
3306 | 3f78eef2 | Iustin Pop | """
|
3307 | 3f78eef2 | Iustin Pop | if dev_path.startswith(cls._DEV_PREFIX):
|
3308 | 3f78eef2 | Iustin Pop | dev_path = dev_path[len(cls._DEV_PREFIX):]
|
3309 | 3f78eef2 | Iustin Pop | dev_path = dev_path.replace("/", "_") |
3310 | 0411c011 | Iustin Pop | fpath = utils.PathJoin(cls._ROOT_DIR, "bdev_%s" % dev_path)
|
3311 | 3f78eef2 | Iustin Pop | return fpath
|
3312 | 3f78eef2 | Iustin Pop | |
3313 | 3f78eef2 | Iustin Pop | @classmethod
|
3314 | 3f78eef2 | Iustin Pop | def UpdateCache(cls, dev_path, owner, on_primary, iv_name): |
3315 | 3f78eef2 | Iustin Pop | """Updates the cache information for a given device.
|
3316 | 3f78eef2 | Iustin Pop |
|
3317 | 10c2650b | Iustin Pop | @type dev_path: str
|
3318 | 10c2650b | Iustin Pop | @param dev_path: the pathname of the device
|
3319 | 10c2650b | Iustin Pop | @type owner: str
|
3320 | 10c2650b | Iustin Pop | @param owner: the owner (instance name) of the device
|
3321 | 10c2650b | Iustin Pop | @type on_primary: bool
|
3322 | 10c2650b | Iustin Pop | @param on_primary: whether this is the primary
|
3323 | 10c2650b | Iustin Pop | node nor not
|
3324 | 10c2650b | Iustin Pop | @type iv_name: str
|
3325 | 10c2650b | Iustin Pop | @param iv_name: the instance-visible name of the
|
3326 | c41eea6e | Iustin Pop | device, as in objects.Disk.iv_name
|
3327 | 10c2650b | Iustin Pop |
|
3328 | 10c2650b | Iustin Pop | @rtype: None
|
3329 | 10c2650b | Iustin Pop |
|
3330 | 3f78eef2 | Iustin Pop | """
|
3331 | cf5a8306 | Iustin Pop | if dev_path is None: |
3332 | 18682bca | Iustin Pop | logging.error("DevCacheManager.UpdateCache got a None dev_path")
|
3333 | cf5a8306 | Iustin Pop | return
|
3334 | 3f78eef2 | Iustin Pop | fpath = cls._ConvertPath(dev_path) |
3335 | 3f78eef2 | Iustin Pop | if on_primary:
|
3336 | 3f78eef2 | Iustin Pop | state = "primary"
|
3337 | 3f78eef2 | Iustin Pop | else:
|
3338 | 3f78eef2 | Iustin Pop | state = "secondary"
|
3339 | 3f78eef2 | Iustin Pop | if iv_name is None: |
3340 | 3f78eef2 | Iustin Pop | iv_name = "not_visible"
|
3341 | 3f78eef2 | Iustin Pop | fdata = "%s %s %s\n" % (str(owner), state, iv_name) |
3342 | 3f78eef2 | Iustin Pop | try:
|
3343 | 3f78eef2 | Iustin Pop | utils.WriteFile(fpath, data=fdata) |
3344 | 3f78eef2 | Iustin Pop | except EnvironmentError, err: |
3345 | 29921401 | Iustin Pop | logging.exception("Can't update bdev cache for %s: %s", dev_path, err)
|
3346 | 3f78eef2 | Iustin Pop | |
3347 | 3f78eef2 | Iustin Pop | @classmethod
|
3348 | 3f78eef2 | Iustin Pop | def RemoveCache(cls, dev_path): |
3349 | 3f78eef2 | Iustin Pop | """Remove data for a dev_path.
|
3350 | 3f78eef2 | Iustin Pop |
|
3351 | 10c2650b | Iustin Pop | This is just a wrapper over L{utils.RemoveFile} with a converted
|
3352 | 10c2650b | Iustin Pop | path name and logging.
|
3353 | 10c2650b | Iustin Pop |
|
3354 | 10c2650b | Iustin Pop | @type dev_path: str
|
3355 | 10c2650b | Iustin Pop | @param dev_path: the pathname of the device
|
3356 | 10c2650b | Iustin Pop |
|
3357 | 10c2650b | Iustin Pop | @rtype: None
|
3358 | 10c2650b | Iustin Pop |
|
3359 | 3f78eef2 | Iustin Pop | """
|
3360 | cf5a8306 | Iustin Pop | if dev_path is None: |
3361 | 18682bca | Iustin Pop | logging.error("DevCacheManager.RemoveCache got a None dev_path")
|
3362 | cf5a8306 | Iustin Pop | return
|
3363 | 3f78eef2 | Iustin Pop | fpath = cls._ConvertPath(dev_path) |
3364 | 3f78eef2 | Iustin Pop | try:
|
3365 | 3f78eef2 | Iustin Pop | utils.RemoveFile(fpath) |
3366 | 3f78eef2 | Iustin Pop | except EnvironmentError, err: |
3367 | 29921401 | Iustin Pop | logging.exception("Can't update bdev cache for %s: %s", dev_path, err) |