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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 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 | a8083063 | Iustin Pop | |
62 | a8083063 | Iustin Pop | |
63 | 13998ef2 | Michael Hanselmann | _BOOT_ID_PATH = "/proc/sys/kernel/random/boot_id"
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64 | 714ea7ca | Iustin Pop | _ALLOWED_CLEAN_DIRS = frozenset([
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65 | 714ea7ca | Iustin Pop | constants.DATA_DIR, |
66 | 714ea7ca | Iustin Pop | constants.JOB_QUEUE_ARCHIVE_DIR, |
67 | 714ea7ca | Iustin Pop | constants.QUEUE_DIR, |
68 | f942a838 | Michael Hanselmann | constants.CRYPTO_KEYS_DIR, |
69 | 714ea7ca | Iustin Pop | ]) |
70 | f942a838 | Michael Hanselmann | _MAX_SSL_CERT_VALIDITY = 7 * 24 * 60 * 60 |
71 | f942a838 | Michael Hanselmann | _X509_KEY_FILE = "key"
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72 | f942a838 | Michael Hanselmann | _X509_CERT_FILE = "cert"
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73 | 1651d116 | Michael Hanselmann | _IES_STATUS_FILE = "status"
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74 | 1651d116 | Michael Hanselmann | _IES_PID_FILE = "pid"
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75 | 1651d116 | Michael Hanselmann | _IES_CA_FILE = "ca"
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76 | 13998ef2 | Michael Hanselmann | |
77 | 13998ef2 | Michael Hanselmann | |
78 | 2cc6781a | Iustin Pop | class RPCFail(Exception): |
79 | 2cc6781a | Iustin Pop | """Class denoting RPC failure.
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80 | 2cc6781a | Iustin Pop |
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81 | 2cc6781a | Iustin Pop | Its argument is the error message.
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82 | 2cc6781a | Iustin Pop |
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83 | 2cc6781a | Iustin Pop | """
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84 | 2cc6781a | Iustin Pop | |
85 | 13998ef2 | Michael Hanselmann | |
86 | 2cc6781a | Iustin Pop | def _Fail(msg, *args, **kwargs): |
87 | 2cc6781a | Iustin Pop | """Log an error and the raise an RPCFail exception.
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88 | 2cc6781a | Iustin Pop |
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89 | 2cc6781a | Iustin Pop | This exception is then handled specially in the ganeti daemon and
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90 | 2cc6781a | Iustin Pop | turned into a 'failed' return type. As such, this function is a
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91 | 2cc6781a | Iustin Pop | useful shortcut for logging the error and returning it to the master
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92 | 2cc6781a | Iustin Pop | daemon.
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93 | 2cc6781a | Iustin Pop |
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94 | 2cc6781a | Iustin Pop | @type msg: string
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95 | 2cc6781a | Iustin Pop | @param msg: the text of the exception
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96 | 2cc6781a | Iustin Pop | @raise RPCFail
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97 | 2cc6781a | Iustin Pop |
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98 | 2cc6781a | Iustin Pop | """
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99 | 2cc6781a | Iustin Pop | if args:
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100 | 2cc6781a | Iustin Pop | msg = msg % args |
101 | afdc3985 | Iustin Pop | if "log" not in kwargs or kwargs["log"]: # if we should log this error |
102 | afdc3985 | Iustin Pop | if "exc" in kwargs and kwargs["exc"]: |
103 | afdc3985 | Iustin Pop | logging.exception(msg) |
104 | afdc3985 | Iustin Pop | else:
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105 | afdc3985 | Iustin Pop | logging.error(msg) |
106 | 2cc6781a | Iustin Pop | raise RPCFail(msg)
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107 | 2cc6781a | Iustin Pop | |
108 | 2cc6781a | Iustin Pop | |
109 | c657dcc9 | Michael Hanselmann | def _GetConfig(): |
110 | 93384844 | Iustin Pop | """Simple wrapper to return a SimpleStore.
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111 | 10c2650b | Iustin Pop |
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112 | 93384844 | Iustin Pop | @rtype: L{ssconf.SimpleStore}
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113 | 93384844 | Iustin Pop | @return: a SimpleStore instance
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114 | 10c2650b | Iustin Pop |
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115 | 10c2650b | Iustin Pop | """
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116 | 93384844 | Iustin Pop | return ssconf.SimpleStore()
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117 | c657dcc9 | Michael Hanselmann | |
118 | c657dcc9 | Michael Hanselmann | |
119 | 62c9ec92 | Iustin Pop | def _GetSshRunner(cluster_name): |
120 | 10c2650b | Iustin Pop | """Simple wrapper to return an SshRunner.
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121 | 10c2650b | Iustin Pop |
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122 | 10c2650b | Iustin Pop | @type cluster_name: str
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123 | 10c2650b | Iustin Pop | @param cluster_name: the cluster name, which is needed
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124 | 10c2650b | Iustin Pop | by the SshRunner constructor
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125 | 10c2650b | Iustin Pop | @rtype: L{ssh.SshRunner}
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126 | 10c2650b | Iustin Pop | @return: an SshRunner instance
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127 | 10c2650b | Iustin Pop |
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128 | 10c2650b | Iustin Pop | """
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129 | 62c9ec92 | Iustin Pop | return ssh.SshRunner(cluster_name)
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130 | c92b310a | Michael Hanselmann | |
131 | c92b310a | Michael Hanselmann | |
132 | 12bce260 | Michael Hanselmann | def _Decompress(data): |
133 | 12bce260 | Michael Hanselmann | """Unpacks data compressed by the RPC client.
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134 | 12bce260 | Michael Hanselmann |
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135 | 12bce260 | Michael Hanselmann | @type data: list or tuple
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136 | 12bce260 | Michael Hanselmann | @param data: Data sent by RPC client
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137 | 12bce260 | Michael Hanselmann | @rtype: str
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138 | 12bce260 | Michael Hanselmann | @return: Decompressed data
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139 | 12bce260 | Michael Hanselmann |
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140 | 12bce260 | Michael Hanselmann | """
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141 | 52e2f66e | Michael Hanselmann | assert isinstance(data, (list, tuple)) |
142 | 12bce260 | Michael Hanselmann | assert len(data) == 2 |
143 | 12bce260 | Michael Hanselmann | (encoding, content) = data |
144 | 12bce260 | Michael Hanselmann | if encoding == constants.RPC_ENCODING_NONE:
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145 | 12bce260 | Michael Hanselmann | return content
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146 | 12bce260 | Michael Hanselmann | elif encoding == constants.RPC_ENCODING_ZLIB_BASE64:
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147 | 12bce260 | Michael Hanselmann | return zlib.decompress(base64.b64decode(content))
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148 | 12bce260 | Michael Hanselmann | else:
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149 | 12bce260 | Michael Hanselmann | raise AssertionError("Unknown data encoding") |
150 | 12bce260 | Michael Hanselmann | |
151 | 12bce260 | Michael Hanselmann | |
152 | 3bc6be5c | Iustin Pop | def _CleanDirectory(path, exclude=None): |
153 | 76ab5558 | Michael Hanselmann | """Removes all regular files in a directory.
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154 | 76ab5558 | Michael Hanselmann |
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155 | 10c2650b | Iustin Pop | @type path: str
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156 | 10c2650b | Iustin Pop | @param path: the directory to clean
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157 | 76ab5558 | Michael Hanselmann | @type exclude: list
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158 | 10c2650b | Iustin Pop | @param exclude: list of files to be excluded, defaults
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159 | 10c2650b | Iustin Pop | to the empty list
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160 | 76ab5558 | Michael Hanselmann |
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161 | 76ab5558 | Michael Hanselmann | """
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162 | 714ea7ca | Iustin Pop | if path not in _ALLOWED_CLEAN_DIRS: |
163 | 714ea7ca | Iustin Pop | _Fail("Path passed to _CleanDirectory not in allowed clean targets: '%s'",
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164 | 714ea7ca | Iustin Pop | path) |
165 | 714ea7ca | Iustin Pop | |
166 | 3956cee1 | Michael Hanselmann | if not os.path.isdir(path): |
167 | 3956cee1 | Michael Hanselmann | return
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168 | 3bc6be5c | Iustin Pop | if exclude is None: |
169 | 3bc6be5c | Iustin Pop | exclude = [] |
170 | 3bc6be5c | Iustin Pop | else:
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171 | 3bc6be5c | Iustin Pop | # Normalize excluded paths
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172 | 3bc6be5c | Iustin Pop | exclude = [os.path.normpath(i) for i in exclude] |
173 | 76ab5558 | Michael Hanselmann | |
174 | 3956cee1 | Michael Hanselmann | for rel_name in utils.ListVisibleFiles(path): |
175 | c4feafe8 | Iustin Pop | full_name = utils.PathJoin(path, rel_name) |
176 | 76ab5558 | Michael Hanselmann | if full_name in exclude: |
177 | 76ab5558 | Michael Hanselmann | continue
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178 | 3956cee1 | Michael Hanselmann | if os.path.isfile(full_name) and not os.path.islink(full_name): |
179 | 3956cee1 | Michael Hanselmann | utils.RemoveFile(full_name) |
180 | 3956cee1 | Michael Hanselmann | |
181 | 3956cee1 | Michael Hanselmann | |
182 | 360b0dc2 | Iustin Pop | def _BuildUploadFileList(): |
183 | 360b0dc2 | Iustin Pop | """Build the list of allowed upload files.
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184 | 360b0dc2 | Iustin Pop |
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185 | 360b0dc2 | Iustin Pop | This is abstracted so that it's built only once at module import time.
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186 | 360b0dc2 | Iustin Pop |
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187 | 360b0dc2 | Iustin Pop | """
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188 | b397a7d2 | Iustin Pop | allowed_files = set([
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189 | b397a7d2 | Iustin Pop | constants.CLUSTER_CONF_FILE, |
190 | b397a7d2 | Iustin Pop | constants.ETC_HOSTS, |
191 | b397a7d2 | Iustin Pop | constants.SSH_KNOWN_HOSTS_FILE, |
192 | b397a7d2 | Iustin Pop | constants.VNC_PASSWORD_FILE, |
193 | b397a7d2 | Iustin Pop | constants.RAPI_CERT_FILE, |
194 | b397a7d2 | Iustin Pop | constants.RAPI_USERS_FILE, |
195 | 6b7d5878 | Michael Hanselmann | constants.CONFD_HMAC_KEY, |
196 | ff89a747 | Michael Hanselmann | constants.CLUSTER_DOMAIN_SECRET_FILE, |
197 | b397a7d2 | Iustin Pop | ]) |
198 | b397a7d2 | Iustin Pop | |
199 | b397a7d2 | Iustin Pop | for hv_name in constants.HYPER_TYPES: |
200 | e5a45a16 | Iustin Pop | hv_class = hypervisor.GetHypervisorClass(hv_name) |
201 | b397a7d2 | Iustin Pop | allowed_files.update(hv_class.GetAncillaryFiles()) |
202 | b397a7d2 | Iustin Pop | |
203 | b397a7d2 | Iustin Pop | return frozenset(allowed_files) |
204 | 360b0dc2 | Iustin Pop | |
205 | 360b0dc2 | Iustin Pop | |
206 | 360b0dc2 | Iustin Pop | _ALLOWED_UPLOAD_FILES = _BuildUploadFileList() |
207 | 360b0dc2 | Iustin Pop | |
208 | 360b0dc2 | Iustin Pop | |
209 | 1bc59f76 | Michael Hanselmann | def JobQueuePurge(): |
210 | 10c2650b | Iustin Pop | """Removes job queue files and archived jobs.
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211 | 10c2650b | Iustin Pop |
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212 | c8457ce7 | Iustin Pop | @rtype: tuple
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213 | c8457ce7 | Iustin Pop | @return: True, None
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214 | 24fc781f | Michael Hanselmann |
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215 | 24fc781f | Michael Hanselmann | """
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216 | 1bc59f76 | Michael Hanselmann | _CleanDirectory(constants.QUEUE_DIR, exclude=[constants.JOB_QUEUE_LOCK_FILE]) |
217 | 24fc781f | Michael Hanselmann | _CleanDirectory(constants.JOB_QUEUE_ARCHIVE_DIR) |
218 | 24fc781f | Michael Hanselmann | |
219 | 24fc781f | Michael Hanselmann | |
220 | bd1e4562 | Iustin Pop | def GetMasterInfo(): |
221 | bd1e4562 | Iustin Pop | """Returns master information.
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222 | bd1e4562 | Iustin Pop |
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223 | bd1e4562 | Iustin Pop | This is an utility function to compute master information, either
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224 | bd1e4562 | Iustin Pop | for consumption here or from the node daemon.
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225 | bd1e4562 | Iustin Pop |
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226 | bd1e4562 | Iustin Pop | @rtype: tuple
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227 | c26a6bd2 | Iustin Pop | @return: master_netdev, master_ip, master_name
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228 | 2a52a064 | Iustin Pop | @raise RPCFail: in case of errors
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229 | b1b6ea87 | Iustin Pop |
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230 | b1b6ea87 | Iustin Pop | """
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231 | b1b6ea87 | Iustin Pop | try:
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232 | c657dcc9 | Michael Hanselmann | cfg = _GetConfig() |
233 | c657dcc9 | Michael Hanselmann | master_netdev = cfg.GetMasterNetdev() |
234 | c657dcc9 | Michael Hanselmann | master_ip = cfg.GetMasterIP() |
235 | c657dcc9 | Michael Hanselmann | master_node = cfg.GetMasterNode() |
236 | b1b6ea87 | Iustin Pop | except errors.ConfigurationError, err:
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237 | 29921401 | Iustin Pop | _Fail("Cluster configuration incomplete: %s", err, exc=True) |
238 | bd1e4562 | Iustin Pop | return (master_netdev, master_ip, master_node)
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239 | b1b6ea87 | Iustin Pop | |
240 | b1b6ea87 | Iustin Pop | |
241 | 3583908a | Guido Trotter | def StartMaster(start_daemons, no_voting): |
242 | a8083063 | Iustin Pop | """Activate local node as master node.
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243 | a8083063 | Iustin Pop |
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244 | 1c65840b | Iustin Pop | The function will always try activate the IP address of the master
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245 | 10c2650b | Iustin Pop | (unless someone else has it). It will also start the master daemons,
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246 | 10c2650b | Iustin Pop | based on the start_daemons parameter.
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247 | 10c2650b | Iustin Pop |
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248 | 10c2650b | Iustin Pop | @type start_daemons: boolean
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249 | c26a6bd2 | Iustin Pop | @param start_daemons: whether to also start the master
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250 | 10c2650b | Iustin Pop | daemons (ganeti-masterd and ganeti-rapi)
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251 | 3583908a | Guido Trotter | @type no_voting: boolean
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252 | 3583908a | Guido Trotter | @param no_voting: whether to start ganeti-masterd without a node vote
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253 | 3583908a | Guido Trotter | (if start_daemons is True), but still non-interactively
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254 | 10c2650b | Iustin Pop | @rtype: None
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255 | a8083063 | Iustin Pop |
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256 | a8083063 | Iustin Pop | """
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257 | 2a52a064 | Iustin Pop | # GetMasterInfo will raise an exception if not able to return data
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258 | 541741d3 | Guido Trotter | master_netdev, master_ip, _ = GetMasterInfo() |
259 | a8083063 | Iustin Pop | |
260 | 396b5733 | Iustin Pop | err_msgs = [] |
261 | b1b6ea87 | Iustin Pop | if utils.TcpPing(master_ip, constants.DEFAULT_NODED_PORT):
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262 | caad16e2 | Iustin Pop | if utils.OwnIpAddress(master_ip):
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263 | b1b6ea87 | Iustin Pop | # we already have the ip:
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264 | b726aff0 | Iustin Pop | logging.debug("Master IP already configured, doing nothing")
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265 | b1b6ea87 | Iustin Pop | else:
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266 | b726aff0 | Iustin Pop | msg = "Someone else has the master ip, not activating"
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267 | b726aff0 | Iustin Pop | logging.error(msg) |
268 | 396b5733 | Iustin Pop | err_msgs.append(msg) |
269 | b1b6ea87 | Iustin Pop | else:
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270 | b1b6ea87 | Iustin Pop | result = utils.RunCmd(["ip", "address", "add", "%s/32" % master_ip, |
271 | b1b6ea87 | Iustin Pop | "dev", master_netdev, "label", |
272 | b1b6ea87 | Iustin Pop | "%s:0" % master_netdev])
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273 | b1b6ea87 | Iustin Pop | if result.failed:
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274 | b726aff0 | Iustin Pop | msg = "Can't activate master IP: %s" % result.output
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275 | b726aff0 | Iustin Pop | logging.error(msg) |
276 | 396b5733 | Iustin Pop | err_msgs.append(msg) |
277 | b1b6ea87 | Iustin Pop | |
278 | b1b6ea87 | Iustin Pop | result = utils.RunCmd(["arping", "-q", "-U", "-c 3", "-I", master_netdev, |
279 | b1b6ea87 | Iustin Pop | "-s", master_ip, master_ip])
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280 | b1b6ea87 | Iustin Pop | # we'll ignore the exit code of arping
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281 | b1b6ea87 | Iustin Pop | |
282 | b1b6ea87 | Iustin Pop | # and now start the master and rapi daemons
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283 | b1b6ea87 | Iustin Pop | if start_daemons:
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284 | 3583908a | Guido Trotter | if no_voting:
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285 | f154a7a3 | Michael Hanselmann | masterd_args = "--no-voting --yes-do-it"
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286 | f154a7a3 | Michael Hanselmann | else:
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287 | f154a7a3 | Michael Hanselmann | masterd_args = ""
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288 | f154a7a3 | Michael Hanselmann | |
289 | f154a7a3 | Michael Hanselmann | env = { |
290 | f154a7a3 | Michael Hanselmann | "EXTRA_MASTERD_ARGS": masterd_args,
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291 | f154a7a3 | Michael Hanselmann | } |
292 | f154a7a3 | Michael Hanselmann | |
293 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "start-master"], env=env)
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294 | f154a7a3 | Michael Hanselmann | if result.failed:
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295 | f154a7a3 | Michael Hanselmann | msg = "Can't start Ganeti master: %s" % result.output
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296 | f154a7a3 | Michael Hanselmann | logging.error(msg) |
297 | f154a7a3 | Michael Hanselmann | err_msgs.append(msg) |
298 | b726aff0 | Iustin Pop | |
299 | 396b5733 | Iustin Pop | if err_msgs:
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300 | 396b5733 | Iustin Pop | _Fail("; ".join(err_msgs))
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301 | afdc3985 | Iustin Pop | |
302 | a8083063 | Iustin Pop | |
303 | 1c65840b | Iustin Pop | def StopMaster(stop_daemons): |
304 | a8083063 | Iustin Pop | """Deactivate this node as master.
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305 | a8083063 | Iustin Pop |
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306 | 1c65840b | Iustin Pop | The function will always try to deactivate the IP address of the
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307 | 10c2650b | Iustin Pop | master. It will also stop the master daemons depending on the
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308 | 10c2650b | Iustin Pop | stop_daemons parameter.
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309 | 10c2650b | Iustin Pop |
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310 | 10c2650b | Iustin Pop | @type stop_daemons: boolean
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311 | 10c2650b | Iustin Pop | @param stop_daemons: whether to also stop the master daemons
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312 | 10c2650b | Iustin Pop | (ganeti-masterd and ganeti-rapi)
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313 | 10c2650b | Iustin Pop | @rtype: None
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314 | a8083063 | Iustin Pop |
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315 | a8083063 | Iustin Pop | """
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316 | 6c00d19a | Iustin Pop | # TODO: log and report back to the caller the error failures; we
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317 | 6c00d19a | Iustin Pop | # need to decide in which case we fail the RPC for this
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318 | 2a52a064 | Iustin Pop | |
319 | 2a52a064 | Iustin Pop | # GetMasterInfo will raise an exception if not able to return data
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320 | 541741d3 | Guido Trotter | master_netdev, master_ip, _ = GetMasterInfo() |
321 | a8083063 | Iustin Pop | |
322 | b1b6ea87 | Iustin Pop | result = utils.RunCmd(["ip", "address", "del", "%s/32" % master_ip, |
323 | b1b6ea87 | Iustin Pop | "dev", master_netdev])
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324 | a8083063 | Iustin Pop | if result.failed:
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325 | 3b9e6a30 | Iustin Pop | logging.error("Can't remove the master IP, error: %s", result.output)
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326 | b1b6ea87 | Iustin Pop | # but otherwise ignore the failure
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327 | b1b6ea87 | Iustin Pop | |
328 | b1b6ea87 | Iustin Pop | if stop_daemons:
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329 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "stop-master"])
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330 | f154a7a3 | Michael Hanselmann | if result.failed:
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331 | f154a7a3 | Michael Hanselmann | logging.error("Could not stop Ganeti master, command %s had exitcode %s"
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332 | f154a7a3 | Michael Hanselmann | " and error %s",
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333 | f154a7a3 | Michael Hanselmann | result.cmd, result.exit_code, result.output) |
334 | a8083063 | Iustin Pop | |
335 | a8083063 | Iustin Pop | |
336 | 9716fdce | Iustin Pop | def AddNode(dsa, dsapub, rsa, rsapub, sshkey, sshpub): |
337 | 7900ed01 | Iustin Pop | """Joins this node to the cluster.
|
338 | a8083063 | Iustin Pop |
|
339 | 7900ed01 | Iustin Pop | This does the following:
|
340 | 7900ed01 | Iustin Pop | - updates the hostkeys of the machine (rsa and dsa)
|
341 | 7900ed01 | Iustin Pop | - adds the ssh private key to the user
|
342 | 7900ed01 | Iustin Pop | - adds the ssh public key to the users' authorized_keys file
|
343 | a8083063 | Iustin Pop |
|
344 | 10c2650b | Iustin Pop | @type dsa: str
|
345 | 10c2650b | Iustin Pop | @param dsa: the DSA private key to write
|
346 | 10c2650b | Iustin Pop | @type dsapub: str
|
347 | 10c2650b | Iustin Pop | @param dsapub: the DSA public key to write
|
348 | 10c2650b | Iustin Pop | @type rsa: str
|
349 | 10c2650b | Iustin Pop | @param rsa: the RSA private key to write
|
350 | 10c2650b | Iustin Pop | @type rsapub: str
|
351 | 10c2650b | Iustin Pop | @param rsapub: the RSA public key to write
|
352 | 10c2650b | Iustin Pop | @type sshkey: str
|
353 | 10c2650b | Iustin Pop | @param sshkey: the SSH private key to write
|
354 | 10c2650b | Iustin Pop | @type sshpub: str
|
355 | 10c2650b | Iustin Pop | @param sshpub: the SSH public key to write
|
356 | 10c2650b | Iustin Pop | @rtype: boolean
|
357 | 10c2650b | Iustin Pop | @return: the success of the operation
|
358 | 10c2650b | Iustin Pop |
|
359 | 7900ed01 | Iustin Pop | """
|
360 | 70d9e3d8 | Iustin Pop | sshd_keys = [(constants.SSH_HOST_RSA_PRIV, rsa, 0600),
|
361 | 70d9e3d8 | Iustin Pop | (constants.SSH_HOST_RSA_PUB, rsapub, 0644),
|
362 | 70d9e3d8 | Iustin Pop | (constants.SSH_HOST_DSA_PRIV, dsa, 0600),
|
363 | 70d9e3d8 | Iustin Pop | (constants.SSH_HOST_DSA_PUB, dsapub, 0644)]
|
364 | 7900ed01 | Iustin Pop | for name, content, mode in sshd_keys: |
365 | 70d9e3d8 | Iustin Pop | utils.WriteFile(name, data=content, mode=mode) |
366 | a8083063 | Iustin Pop | |
367 | 70d9e3d8 | Iustin Pop | try:
|
368 | 70d9e3d8 | Iustin Pop | priv_key, pub_key, auth_keys = ssh.GetUserFiles(constants.GANETI_RUNAS, |
369 | 70d9e3d8 | Iustin Pop | mkdir=True)
|
370 | 70d9e3d8 | Iustin Pop | except errors.OpExecError, err:
|
371 | 2cc6781a | Iustin Pop | _Fail("Error while processing user ssh files: %s", err, exc=True) |
372 | a8083063 | Iustin Pop | |
373 | 70d9e3d8 | Iustin Pop | for name, content in [(priv_key, sshkey), (pub_key, sshpub)]: |
374 | 70d9e3d8 | Iustin Pop | utils.WriteFile(name, data=content, mode=0600)
|
375 | a8083063 | Iustin Pop | |
376 | 70d9e3d8 | Iustin Pop | utils.AddAuthorizedKey(auth_keys, sshpub) |
377 | a8083063 | Iustin Pop | |
378 | 7e1fac25 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "reload-ssh-keys"])
|
379 | 7e1fac25 | Michael Hanselmann | if result.failed:
|
380 | 7e1fac25 | Michael Hanselmann | _Fail("Unable to reload SSH keys (command %r, exit code %s, output %r)",
|
381 | 7e1fac25 | Michael Hanselmann | result.cmd, result.exit_code, result.output) |
382 | a8083063 | Iustin Pop | |
383 | a8083063 | Iustin Pop | |
384 | b989b9d9 | Ken Wehr | def LeaveCluster(modify_ssh_setup): |
385 | 10c2650b | Iustin Pop | """Cleans up and remove the current node.
|
386 | 10c2650b | Iustin Pop |
|
387 | 10c2650b | Iustin Pop | This function cleans up and prepares the current node to be removed
|
388 | 10c2650b | Iustin Pop | from the cluster.
|
389 | 10c2650b | Iustin Pop |
|
390 | 10c2650b | Iustin Pop | If processing is successful, then it raises an
|
391 | c41eea6e | Iustin Pop | L{errors.QuitGanetiException} which is used as a special case to
|
392 | 10c2650b | Iustin Pop | shutdown the node daemon.
|
393 | a8083063 | Iustin Pop |
|
394 | b989b9d9 | Ken Wehr | @param modify_ssh_setup: boolean
|
395 | b989b9d9 | Ken Wehr |
|
396 | a8083063 | Iustin Pop | """
|
397 | f78346f5 | Michael Hanselmann | _CleanDirectory(constants.DATA_DIR) |
398 | f942a838 | Michael Hanselmann | _CleanDirectory(constants.CRYPTO_KEYS_DIR) |
399 | 1bc59f76 | Michael Hanselmann | JobQueuePurge() |
400 | f78346f5 | Michael Hanselmann | |
401 | b989b9d9 | Ken Wehr | if modify_ssh_setup:
|
402 | b989b9d9 | Ken Wehr | try:
|
403 | b989b9d9 | Ken Wehr | priv_key, pub_key, auth_keys = ssh.GetUserFiles(constants.GANETI_RUNAS) |
404 | 7900ed01 | Iustin Pop | |
405 | b989b9d9 | Ken Wehr | utils.RemoveAuthorizedKey(auth_keys, utils.ReadFile(pub_key)) |
406 | a8083063 | Iustin Pop | |
407 | b989b9d9 | Ken Wehr | utils.RemoveFile(priv_key) |
408 | b989b9d9 | Ken Wehr | utils.RemoveFile(pub_key) |
409 | b989b9d9 | Ken Wehr | except errors.OpExecError:
|
410 | b989b9d9 | Ken Wehr | logging.exception("Error while processing ssh files")
|
411 | a8083063 | Iustin Pop | |
412 | ed008420 | Guido Trotter | try:
|
413 | 6b7d5878 | Michael Hanselmann | utils.RemoveFile(constants.CONFD_HMAC_KEY) |
414 | ed008420 | Guido Trotter | utils.RemoveFile(constants.RAPI_CERT_FILE) |
415 | 168c1de2 | Michael Hanselmann | utils.RemoveFile(constants.NODED_CERT_FILE) |
416 | 7260cfbe | Iustin Pop | except: # pylint: disable-msg=W0702 |
417 | ed008420 | Guido Trotter | logging.exception("Error while removing cluster secrets")
|
418 | ed008420 | Guido Trotter | |
419 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "stop", constants.CONFD])
|
420 | f154a7a3 | Michael Hanselmann | if result.failed:
|
421 | f154a7a3 | Michael Hanselmann | logging.error("Command %s failed with exitcode %s and error %s",
|
422 | f154a7a3 | Michael Hanselmann | result.cmd, result.exit_code, result.output) |
423 | ed008420 | Guido Trotter | |
424 | 0623d351 | Iustin Pop | # Raise a custom exception (handled in ganeti-noded)
|
425 | 0623d351 | Iustin Pop | raise errors.QuitGanetiException(True, 'Shutdown scheduled') |
426 | 6d8b6238 | Guido Trotter | |
427 | a8083063 | Iustin Pop | |
428 | e69d05fd | Iustin Pop | def GetNodeInfo(vgname, hypervisor_type): |
429 | 5bbd3f7f | Michael Hanselmann | """Gives back a hash with different information about the node.
|
430 | a8083063 | Iustin Pop |
|
431 | e69d05fd | Iustin Pop | @type vgname: C{string}
|
432 | e69d05fd | Iustin Pop | @param vgname: the name of the volume group to ask for disk space information
|
433 | e69d05fd | Iustin Pop | @type hypervisor_type: C{str}
|
434 | e69d05fd | Iustin Pop | @param hypervisor_type: the name of the hypervisor to ask for
|
435 | e69d05fd | Iustin Pop | memory information
|
436 | e69d05fd | Iustin Pop | @rtype: C{dict}
|
437 | e69d05fd | Iustin Pop | @return: dictionary with the following keys:
|
438 | e69d05fd | Iustin Pop | - vg_size is the size of the configured volume group in MiB
|
439 | e69d05fd | Iustin Pop | - vg_free is the free size of the volume group in MiB
|
440 | e69d05fd | Iustin Pop | - memory_dom0 is the memory allocated for domain0 in MiB
|
441 | e69d05fd | Iustin Pop | - memory_free is the currently available (free) ram in MiB
|
442 | e69d05fd | Iustin Pop | - memory_total is the total number of ram in MiB
|
443 | a8083063 | Iustin Pop |
|
444 | 098c0958 | Michael Hanselmann | """
|
445 | a8083063 | Iustin Pop | outputarray = {} |
446 | a8083063 | Iustin Pop | vginfo = _GetVGInfo(vgname) |
447 | a8083063 | Iustin Pop | outputarray['vg_size'] = vginfo['vg_size'] |
448 | a8083063 | Iustin Pop | outputarray['vg_free'] = vginfo['vg_free'] |
449 | a8083063 | Iustin Pop | |
450 | e69d05fd | Iustin Pop | hyper = hypervisor.GetHypervisor(hypervisor_type) |
451 | a8083063 | Iustin Pop | hyp_info = hyper.GetNodeInfo() |
452 | a8083063 | Iustin Pop | if hyp_info is not None: |
453 | a8083063 | Iustin Pop | outputarray.update(hyp_info) |
454 | a8083063 | Iustin Pop | |
455 | 13998ef2 | Michael Hanselmann | outputarray["bootid"] = utils.ReadFile(_BOOT_ID_PATH, size=128).rstrip("\n") |
456 | 3ef10550 | Michael Hanselmann | |
457 | c26a6bd2 | Iustin Pop | return outputarray
|
458 | a8083063 | Iustin Pop | |
459 | a8083063 | Iustin Pop | |
460 | 62c9ec92 | Iustin Pop | def VerifyNode(what, cluster_name): |
461 | a8083063 | Iustin Pop | """Verify the status of the local node.
|
462 | a8083063 | Iustin Pop |
|
463 | e69d05fd | Iustin Pop | Based on the input L{what} parameter, various checks are done on the
|
464 | e69d05fd | Iustin Pop | local node.
|
465 | e69d05fd | Iustin Pop |
|
466 | e69d05fd | Iustin Pop | If the I{filelist} key is present, this list of
|
467 | e69d05fd | Iustin Pop | files is checksummed and the file/checksum pairs are returned.
|
468 | e69d05fd | Iustin Pop |
|
469 | e69d05fd | Iustin Pop | If the I{nodelist} key is present, we check that we have
|
470 | e69d05fd | Iustin Pop | connectivity via ssh with the target nodes (and check the hostname
|
471 | e69d05fd | Iustin Pop | report).
|
472 | a8083063 | Iustin Pop |
|
473 | e69d05fd | Iustin Pop | If the I{node-net-test} key is present, we check that we have
|
474 | e69d05fd | Iustin Pop | connectivity to the given nodes via both primary IP and, if
|
475 | e69d05fd | Iustin Pop | applicable, secondary IPs.
|
476 | e69d05fd | Iustin Pop |
|
477 | e69d05fd | Iustin Pop | @type what: C{dict}
|
478 | e69d05fd | Iustin Pop | @param what: a dictionary of things to check:
|
479 | e69d05fd | Iustin Pop | - filelist: list of files for which to compute checksums
|
480 | e69d05fd | Iustin Pop | - nodelist: list of nodes we should check ssh communication with
|
481 | e69d05fd | Iustin Pop | - node-net-test: list of nodes we should check node daemon port
|
482 | e69d05fd | Iustin Pop | connectivity with
|
483 | e69d05fd | Iustin Pop | - hypervisor: list with hypervisors to run the verify for
|
484 | 10c2650b | Iustin Pop | @rtype: dict
|
485 | 10c2650b | Iustin Pop | @return: a dictionary with the same keys as the input dict, and
|
486 | 10c2650b | Iustin Pop | values representing the result of the checks
|
487 | a8083063 | Iustin Pop |
|
488 | a8083063 | Iustin Pop | """
|
489 | a8083063 | Iustin Pop | result = {} |
490 | a3a5f850 | Iustin Pop | my_name = utils.HostInfo().name |
491 | a3a5f850 | Iustin Pop | port = utils.GetDaemonPort(constants.NODED) |
492 | a8083063 | Iustin Pop | |
493 | 25361b9a | Iustin Pop | if constants.NV_HYPERVISOR in what: |
494 | 25361b9a | Iustin Pop | result[constants.NV_HYPERVISOR] = tmp = {} |
495 | 25361b9a | Iustin Pop | for hv_name in what[constants.NV_HYPERVISOR]: |
496 | 0cf5e7f5 | Iustin Pop | try:
|
497 | 0cf5e7f5 | Iustin Pop | val = hypervisor.GetHypervisor(hv_name).Verify() |
498 | 0cf5e7f5 | Iustin Pop | except errors.HypervisorError, err:
|
499 | 0cf5e7f5 | Iustin Pop | val = "Error while checking hypervisor: %s" % str(err) |
500 | 0cf5e7f5 | Iustin Pop | tmp[hv_name] = val |
501 | 25361b9a | Iustin Pop | |
502 | 25361b9a | Iustin Pop | if constants.NV_FILELIST in what: |
503 | 25361b9a | Iustin Pop | result[constants.NV_FILELIST] = utils.FingerprintFiles( |
504 | 25361b9a | Iustin Pop | what[constants.NV_FILELIST]) |
505 | 25361b9a | Iustin Pop | |
506 | 25361b9a | Iustin Pop | if constants.NV_NODELIST in what: |
507 | 25361b9a | Iustin Pop | result[constants.NV_NODELIST] = tmp = {} |
508 | 25361b9a | Iustin Pop | random.shuffle(what[constants.NV_NODELIST]) |
509 | 25361b9a | Iustin Pop | for node in what[constants.NV_NODELIST]: |
510 | 62c9ec92 | Iustin Pop | success, message = _GetSshRunner(cluster_name).VerifyNodeHostname(node) |
511 | a8083063 | Iustin Pop | if not success: |
512 | 25361b9a | Iustin Pop | tmp[node] = message |
513 | 25361b9a | Iustin Pop | |
514 | 25361b9a | Iustin Pop | if constants.NV_NODENETTEST in what: |
515 | 25361b9a | Iustin Pop | result[constants.NV_NODENETTEST] = tmp = {} |
516 | 9d4bfc96 | Iustin Pop | my_pip = my_sip = None
|
517 | 25361b9a | Iustin Pop | for name, pip, sip in what[constants.NV_NODENETTEST]: |
518 | 9d4bfc96 | Iustin Pop | if name == my_name:
|
519 | 9d4bfc96 | Iustin Pop | my_pip = pip |
520 | 9d4bfc96 | Iustin Pop | my_sip = sip |
521 | 9d4bfc96 | Iustin Pop | break
|
522 | 9d4bfc96 | Iustin Pop | if not my_pip: |
523 | 25361b9a | Iustin Pop | tmp[my_name] = ("Can't find my own primary/secondary IP"
|
524 | 25361b9a | Iustin Pop | " in the node list")
|
525 | 9d4bfc96 | Iustin Pop | else:
|
526 | 25361b9a | Iustin Pop | for name, pip, sip in what[constants.NV_NODENETTEST]: |
527 | 9d4bfc96 | Iustin Pop | fail = [] |
528 | 9d4bfc96 | Iustin Pop | if not utils.TcpPing(pip, port, source=my_pip): |
529 | 9d4bfc96 | Iustin Pop | fail.append("primary")
|
530 | 9d4bfc96 | Iustin Pop | if sip != pip:
|
531 | 9d4bfc96 | Iustin Pop | if not utils.TcpPing(sip, port, source=my_sip): |
532 | 9d4bfc96 | Iustin Pop | fail.append("secondary")
|
533 | 9d4bfc96 | Iustin Pop | if fail:
|
534 | 25361b9a | Iustin Pop | tmp[name] = ("failure using the %s interface(s)" %
|
535 | 25361b9a | Iustin Pop | " and ".join(fail))
|
536 | 25361b9a | Iustin Pop | |
537 | a3a5f850 | Iustin Pop | if constants.NV_MASTERIP in what: |
538 | a3a5f850 | Iustin Pop | # FIXME: add checks on incoming data structures (here and in the
|
539 | a3a5f850 | Iustin Pop | # rest of the function)
|
540 | a3a5f850 | Iustin Pop | master_name, master_ip = what[constants.NV_MASTERIP] |
541 | a3a5f850 | Iustin Pop | if master_name == my_name:
|
542 | 9769bb78 | Manuel Franceschini | source = constants.IP4_ADDRESS_LOCALHOST |
543 | a3a5f850 | Iustin Pop | else:
|
544 | a3a5f850 | Iustin Pop | source = None
|
545 | a3a5f850 | Iustin Pop | result[constants.NV_MASTERIP] = utils.TcpPing(master_ip, port, |
546 | a3a5f850 | Iustin Pop | source=source) |
547 | a3a5f850 | Iustin Pop | |
548 | 25361b9a | Iustin Pop | if constants.NV_LVLIST in what: |
549 | ed904904 | Iustin Pop | try:
|
550 | ed904904 | Iustin Pop | val = GetVolumeList(what[constants.NV_LVLIST]) |
551 | ed904904 | Iustin Pop | except RPCFail, err:
|
552 | ed904904 | Iustin Pop | val = str(err)
|
553 | ed904904 | Iustin Pop | result[constants.NV_LVLIST] = val |
554 | 25361b9a | Iustin Pop | |
555 | 25361b9a | Iustin Pop | if constants.NV_INSTANCELIST in what: |
556 | 0cf5e7f5 | Iustin Pop | # GetInstanceList can fail
|
557 | 0cf5e7f5 | Iustin Pop | try:
|
558 | 0cf5e7f5 | Iustin Pop | val = GetInstanceList(what[constants.NV_INSTANCELIST]) |
559 | 0cf5e7f5 | Iustin Pop | except RPCFail, err:
|
560 | 0cf5e7f5 | Iustin Pop | val = str(err)
|
561 | 0cf5e7f5 | Iustin Pop | result[constants.NV_INSTANCELIST] = val |
562 | 25361b9a | Iustin Pop | |
563 | 25361b9a | Iustin Pop | if constants.NV_VGLIST in what: |
564 | e480923b | Iustin Pop | result[constants.NV_VGLIST] = utils.ListVolumeGroups() |
565 | 25361b9a | Iustin Pop | |
566 | d091393e | Iustin Pop | if constants.NV_PVLIST in what: |
567 | d091393e | Iustin Pop | result[constants.NV_PVLIST] = \ |
568 | d091393e | Iustin Pop | bdev.LogicalVolume.GetPVInfo(what[constants.NV_PVLIST], |
569 | d091393e | Iustin Pop | filter_allocatable=False)
|
570 | d091393e | Iustin Pop | |
571 | 25361b9a | Iustin Pop | if constants.NV_VERSION in what: |
572 | e9ce0a64 | Iustin Pop | result[constants.NV_VERSION] = (constants.PROTOCOL_VERSION, |
573 | e9ce0a64 | Iustin Pop | constants.RELEASE_VERSION) |
574 | 25361b9a | Iustin Pop | |
575 | 25361b9a | Iustin Pop | if constants.NV_HVINFO in what: |
576 | 25361b9a | Iustin Pop | hyper = hypervisor.GetHypervisor(what[constants.NV_HVINFO]) |
577 | 25361b9a | Iustin Pop | result[constants.NV_HVINFO] = hyper.GetNodeInfo() |
578 | 9d4bfc96 | Iustin Pop | |
579 | 6d2e83d5 | Iustin Pop | if constants.NV_DRBDLIST in what: |
580 | 6d2e83d5 | Iustin Pop | try:
|
581 | 6d2e83d5 | Iustin Pop | used_minors = bdev.DRBD8.GetUsedDevs().keys() |
582 | f6eaed12 | Iustin Pop | except errors.BlockDeviceError, err:
|
583 | 6d2e83d5 | Iustin Pop | logging.warning("Can't get used minors list", exc_info=True) |
584 | f6eaed12 | Iustin Pop | used_minors = str(err)
|
585 | 6d2e83d5 | Iustin Pop | result[constants.NV_DRBDLIST] = used_minors |
586 | 6d2e83d5 | Iustin Pop | |
587 | 7ef40fbe | Luca Bigliardi | if constants.NV_DRBDHELPER in what: |
588 | 7ef40fbe | Luca Bigliardi | status = True
|
589 | 7ef40fbe | Luca Bigliardi | try:
|
590 | 7ef40fbe | Luca Bigliardi | payload = bdev.BaseDRBD.GetUsermodeHelper() |
591 | 7ef40fbe | Luca Bigliardi | except errors.BlockDeviceError, err:
|
592 | 7ef40fbe | Luca Bigliardi | logging.error("Can't get DRBD usermode helper: %s", str(err)) |
593 | 7ef40fbe | Luca Bigliardi | status = False
|
594 | 7ef40fbe | Luca Bigliardi | payload = str(err)
|
595 | 7ef40fbe | Luca Bigliardi | result[constants.NV_DRBDHELPER] = (status, payload) |
596 | 7ef40fbe | Luca Bigliardi | |
597 | 7c0aa8e9 | Iustin Pop | if constants.NV_NODESETUP in what: |
598 | 7c0aa8e9 | Iustin Pop | result[constants.NV_NODESETUP] = tmpr = [] |
599 | 7c0aa8e9 | Iustin Pop | if not os.path.isdir("/sys/block") or not os.path.isdir("/sys/class/net"): |
600 | 7c0aa8e9 | Iustin Pop | tmpr.append("The sysfs filesytem doesn't seem to be mounted"
|
601 | 7c0aa8e9 | Iustin Pop | " under /sys, missing required directories /sys/block"
|
602 | 7c0aa8e9 | Iustin Pop | " and /sys/class/net")
|
603 | 7c0aa8e9 | Iustin Pop | if (not os.path.isdir("/proc/sys") or |
604 | 7c0aa8e9 | Iustin Pop | not os.path.isfile("/proc/sysrq-trigger")): |
605 | 7c0aa8e9 | Iustin Pop | tmpr.append("The procfs filesystem doesn't seem to be mounted"
|
606 | 7c0aa8e9 | Iustin Pop | " under /proc, missing required directory /proc/sys and"
|
607 | 7c0aa8e9 | Iustin Pop | " the file /proc/sysrq-trigger")
|
608 | 313b2dd4 | Michael Hanselmann | |
609 | 313b2dd4 | Michael Hanselmann | if constants.NV_TIME in what: |
610 | 313b2dd4 | Michael Hanselmann | result[constants.NV_TIME] = utils.SplitTime(time.time()) |
611 | 313b2dd4 | Michael Hanselmann | |
612 | b0d85178 | Iustin Pop | if constants.NV_OSLIST in what: |
613 | b0d85178 | Iustin Pop | result[constants.NV_OSLIST] = DiagnoseOS() |
614 | b0d85178 | Iustin Pop | |
615 | c26a6bd2 | Iustin Pop | return result
|
616 | a8083063 | Iustin Pop | |
617 | a8083063 | Iustin Pop | |
618 | a8083063 | Iustin Pop | def GetVolumeList(vg_name): |
619 | a8083063 | Iustin Pop | """Compute list of logical volumes and their size.
|
620 | a8083063 | Iustin Pop |
|
621 | 10c2650b | Iustin Pop | @type vg_name: str
|
622 | 10c2650b | Iustin Pop | @param vg_name: the volume group whose LVs we should list
|
623 | 10c2650b | Iustin Pop | @rtype: dict
|
624 | 10c2650b | Iustin Pop | @return:
|
625 | 10c2650b | Iustin Pop | dictionary of all partions (key) with value being a tuple of
|
626 | 10c2650b | Iustin Pop | their size (in MiB), inactive and online status::
|
627 | 10c2650b | Iustin Pop |
|
628 | 10c2650b | Iustin Pop | {'test1': ('20.06', True, True)}
|
629 | 10c2650b | Iustin Pop |
|
630 | 10c2650b | Iustin Pop | in case of errors, a string is returned with the error
|
631 | 10c2650b | Iustin Pop | details.
|
632 | a8083063 | Iustin Pop |
|
633 | a8083063 | Iustin Pop | """
|
634 | cb2037a2 | Iustin Pop | lvs = {} |
635 | cb2037a2 | Iustin Pop | sep = '|'
|
636 | cb2037a2 | Iustin Pop | result = utils.RunCmd(["lvs", "--noheadings", "--units=m", "--nosuffix", |
637 | cb2037a2 | Iustin Pop | "--separator=%s" % sep,
|
638 | cb2037a2 | Iustin Pop | "-olv_name,lv_size,lv_attr", vg_name])
|
639 | a8083063 | Iustin Pop | if result.failed:
|
640 | 29d376ec | Iustin Pop | _Fail("Failed to list logical volumes, lvs output: %s", result.output)
|
641 | cb2037a2 | Iustin Pop | |
642 | df4c2628 | Iustin Pop | valid_line_re = re.compile("^ *([^|]+)\|([0-9.]+)\|([^|]{6})\|?$")
|
643 | cb2037a2 | Iustin Pop | for line in result.stdout.splitlines(): |
644 | df4c2628 | Iustin Pop | line = line.strip() |
645 | df4c2628 | Iustin Pop | match = valid_line_re.match(line) |
646 | df4c2628 | Iustin Pop | if not match: |
647 | 18682bca | Iustin Pop | logging.error("Invalid line returned from lvs output: '%s'", line)
|
648 | df4c2628 | Iustin Pop | continue
|
649 | df4c2628 | Iustin Pop | name, size, attr = match.groups() |
650 | cb2037a2 | Iustin Pop | inactive = attr[4] == '-' |
651 | cb2037a2 | Iustin Pop | online = attr[5] == 'o' |
652 | 33f2a81a | Iustin Pop | virtual = attr[0] == 'v' |
653 | 33f2a81a | Iustin Pop | if virtual:
|
654 | 33f2a81a | Iustin Pop | # we don't want to report such volumes as existing, since they
|
655 | 33f2a81a | Iustin Pop | # don't really hold data
|
656 | 33f2a81a | Iustin Pop | continue
|
657 | cb2037a2 | Iustin Pop | lvs[name] = (size, inactive, online) |
658 | cb2037a2 | Iustin Pop | |
659 | cb2037a2 | Iustin Pop | return lvs
|
660 | a8083063 | Iustin Pop | |
661 | a8083063 | Iustin Pop | |
662 | a8083063 | Iustin Pop | def ListVolumeGroups(): |
663 | 2f8598a5 | Alexander Schreiber | """List the volume groups and their size.
|
664 | a8083063 | Iustin Pop |
|
665 | 10c2650b | Iustin Pop | @rtype: dict
|
666 | 10c2650b | Iustin Pop | @return: dictionary with keys volume name and values the
|
667 | 10c2650b | Iustin Pop | size of the volume
|
668 | a8083063 | Iustin Pop |
|
669 | a8083063 | Iustin Pop | """
|
670 | c26a6bd2 | Iustin Pop | return utils.ListVolumeGroups()
|
671 | a8083063 | Iustin Pop | |
672 | a8083063 | Iustin Pop | |
673 | dcb93971 | Michael Hanselmann | def NodeVolumes(): |
674 | dcb93971 | Michael Hanselmann | """List all volumes on this node.
|
675 | dcb93971 | Michael Hanselmann |
|
676 | 10c2650b | Iustin Pop | @rtype: list
|
677 | 10c2650b | Iustin Pop | @return:
|
678 | 10c2650b | Iustin Pop | A list of dictionaries, each having four keys:
|
679 | 10c2650b | Iustin Pop | - name: the logical volume name,
|
680 | 10c2650b | Iustin Pop | - size: the size of the logical volume
|
681 | 10c2650b | Iustin Pop | - dev: the physical device on which the LV lives
|
682 | 10c2650b | Iustin Pop | - vg: the volume group to which it belongs
|
683 | 10c2650b | Iustin Pop |
|
684 | 10c2650b | Iustin Pop | In case of errors, we return an empty list and log the
|
685 | 10c2650b | Iustin Pop | error.
|
686 | 10c2650b | Iustin Pop |
|
687 | 10c2650b | Iustin Pop | Note that since a logical volume can live on multiple physical
|
688 | 10c2650b | Iustin Pop | volumes, the resulting list might include a logical volume
|
689 | 10c2650b | Iustin Pop | multiple times.
|
690 | 10c2650b | Iustin Pop |
|
691 | dcb93971 | Michael Hanselmann | """
|
692 | dcb93971 | Michael Hanselmann | result = utils.RunCmd(["lvs", "--noheadings", "--units=m", "--nosuffix", |
693 | dcb93971 | Michael Hanselmann | "--separator=|",
|
694 | dcb93971 | Michael Hanselmann | "--options=lv_name,lv_size,devices,vg_name"])
|
695 | dcb93971 | Michael Hanselmann | if result.failed:
|
696 | 10bfe6cb | Iustin Pop | _Fail("Failed to list logical volumes, lvs output: %s",
|
697 | 10bfe6cb | Iustin Pop | result.output) |
698 | dcb93971 | Michael Hanselmann | |
699 | dcb93971 | Michael Hanselmann | def parse_dev(dev): |
700 | 89e5ab02 | Iustin Pop | return dev.split('(')[0] |
701 | 89e5ab02 | Iustin Pop | |
702 | 89e5ab02 | Iustin Pop | def handle_dev(dev): |
703 | 89e5ab02 | Iustin Pop | return [parse_dev(x) for x in dev.split(",")] |
704 | dcb93971 | Michael Hanselmann | |
705 | dcb93971 | Michael Hanselmann | def map_line(line): |
706 | 89e5ab02 | Iustin Pop | line = [v.strip() for v in line] |
707 | 89e5ab02 | Iustin Pop | return [{'name': line[0], 'size': line[1], |
708 | 89e5ab02 | Iustin Pop | 'dev': dev, 'vg': line[3]} for dev in handle_dev(line[2])] |
709 | 89e5ab02 | Iustin Pop | |
710 | 89e5ab02 | Iustin Pop | all_devs = [] |
711 | 89e5ab02 | Iustin Pop | for line in result.stdout.splitlines(): |
712 | 89e5ab02 | Iustin Pop | if line.count('|') >= 3: |
713 | 89e5ab02 | Iustin Pop | all_devs.extend(map_line(line.split('|')))
|
714 | 89e5ab02 | Iustin Pop | else:
|
715 | 89e5ab02 | Iustin Pop | logging.warning("Strange line in the output from lvs: '%s'", line)
|
716 | 89e5ab02 | Iustin Pop | return all_devs
|
717 | dcb93971 | Michael Hanselmann | |
718 | dcb93971 | Michael Hanselmann | |
719 | a8083063 | Iustin Pop | def BridgesExist(bridges_list): |
720 | 2f8598a5 | Alexander Schreiber | """Check if a list of bridges exist on the current node.
|
721 | a8083063 | Iustin Pop |
|
722 | b1206984 | Iustin Pop | @rtype: boolean
|
723 | b1206984 | Iustin Pop | @return: C{True} if all of them exist, C{False} otherwise
|
724 | a8083063 | Iustin Pop |
|
725 | a8083063 | Iustin Pop | """
|
726 | 35c0c8da | Iustin Pop | missing = [] |
727 | a8083063 | Iustin Pop | for bridge in bridges_list: |
728 | a8083063 | Iustin Pop | if not utils.BridgeExists(bridge): |
729 | 35c0c8da | Iustin Pop | missing.append(bridge) |
730 | a8083063 | Iustin Pop | |
731 | 35c0c8da | Iustin Pop | if missing:
|
732 | 1f864b60 | Iustin Pop | _Fail("Missing bridges %s", utils.CommaJoin(missing))
|
733 | 35c0c8da | Iustin Pop | |
734 | a8083063 | Iustin Pop | |
735 | e69d05fd | Iustin Pop | def GetInstanceList(hypervisor_list): |
736 | 2f8598a5 | Alexander Schreiber | """Provides a list of instances.
|
737 | a8083063 | Iustin Pop |
|
738 | e69d05fd | Iustin Pop | @type hypervisor_list: list
|
739 | e69d05fd | Iustin Pop | @param hypervisor_list: the list of hypervisors to query information
|
740 | e69d05fd | Iustin Pop |
|
741 | e69d05fd | Iustin Pop | @rtype: list
|
742 | e69d05fd | Iustin Pop | @return: a list of all running instances on the current node
|
743 | 10c2650b | Iustin Pop | - instance1.example.com
|
744 | 10c2650b | Iustin Pop | - instance2.example.com
|
745 | a8083063 | Iustin Pop |
|
746 | 098c0958 | Michael Hanselmann | """
|
747 | e69d05fd | Iustin Pop | results = [] |
748 | e69d05fd | Iustin Pop | for hname in hypervisor_list: |
749 | e69d05fd | Iustin Pop | try:
|
750 | e69d05fd | Iustin Pop | names = hypervisor.GetHypervisor(hname).ListInstances() |
751 | e69d05fd | Iustin Pop | results.extend(names) |
752 | e69d05fd | Iustin Pop | except errors.HypervisorError, err:
|
753 | aca13712 | Iustin Pop | _Fail("Error enumerating instances (hypervisor %s): %s",
|
754 | aca13712 | Iustin Pop | hname, err, exc=True)
|
755 | a8083063 | Iustin Pop | |
756 | e69d05fd | Iustin Pop | return results
|
757 | a8083063 | Iustin Pop | |
758 | a8083063 | Iustin Pop | |
759 | e69d05fd | Iustin Pop | def GetInstanceInfo(instance, hname): |
760 | 5bbd3f7f | Michael Hanselmann | """Gives back the information about an instance as a dictionary.
|
761 | a8083063 | Iustin Pop |
|
762 | e69d05fd | Iustin Pop | @type instance: string
|
763 | e69d05fd | Iustin Pop | @param instance: the instance name
|
764 | e69d05fd | Iustin Pop | @type hname: string
|
765 | e69d05fd | Iustin Pop | @param hname: the hypervisor type of the instance
|
766 | a8083063 | Iustin Pop |
|
767 | e69d05fd | Iustin Pop | @rtype: dict
|
768 | e69d05fd | Iustin Pop | @return: dictionary with the following keys:
|
769 | e69d05fd | Iustin Pop | - memory: memory size of instance (int)
|
770 | e69d05fd | Iustin Pop | - state: xen state of instance (string)
|
771 | e69d05fd | Iustin Pop | - time: cpu time of instance (float)
|
772 | a8083063 | Iustin Pop |
|
773 | 098c0958 | Michael Hanselmann | """
|
774 | a8083063 | Iustin Pop | output = {} |
775 | a8083063 | Iustin Pop | |
776 | e69d05fd | Iustin Pop | iinfo = hypervisor.GetHypervisor(hname).GetInstanceInfo(instance) |
777 | a8083063 | Iustin Pop | if iinfo is not None: |
778 | a8083063 | Iustin Pop | output['memory'] = iinfo[2] |
779 | a8083063 | Iustin Pop | output['state'] = iinfo[4] |
780 | a8083063 | Iustin Pop | output['time'] = iinfo[5] |
781 | a8083063 | Iustin Pop | |
782 | c26a6bd2 | Iustin Pop | return output
|
783 | a8083063 | Iustin Pop | |
784 | a8083063 | Iustin Pop | |
785 | 56e7640c | Iustin Pop | def GetInstanceMigratable(instance): |
786 | 56e7640c | Iustin Pop | """Gives whether an instance can be migrated.
|
787 | 56e7640c | Iustin Pop |
|
788 | 56e7640c | Iustin Pop | @type instance: L{objects.Instance}
|
789 | 56e7640c | Iustin Pop | @param instance: object representing the instance to be checked.
|
790 | 56e7640c | Iustin Pop |
|
791 | 56e7640c | Iustin Pop | @rtype: tuple
|
792 | 56e7640c | Iustin Pop | @return: tuple of (result, description) where:
|
793 | 56e7640c | Iustin Pop | - result: whether the instance can be migrated or not
|
794 | 56e7640c | Iustin Pop | - description: a description of the issue, if relevant
|
795 | 56e7640c | Iustin Pop |
|
796 | 56e7640c | Iustin Pop | """
|
797 | 56e7640c | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
798 | afdc3985 | Iustin Pop | iname = instance.name |
799 | afdc3985 | Iustin Pop | if iname not in hyper.ListInstances(): |
800 | afdc3985 | Iustin Pop | _Fail("Instance %s is not running", iname)
|
801 | 56e7640c | Iustin Pop | |
802 | 56e7640c | Iustin Pop | for idx in range(len(instance.disks)): |
803 | afdc3985 | Iustin Pop | link_name = _GetBlockDevSymlinkPath(iname, idx) |
804 | 56e7640c | Iustin Pop | if not os.path.islink(link_name): |
805 | afdc3985 | Iustin Pop | _Fail("Instance %s was not restarted since ganeti 1.2.5", iname)
|
806 | 56e7640c | Iustin Pop | |
807 | 56e7640c | Iustin Pop | |
808 | e69d05fd | Iustin Pop | def GetAllInstancesInfo(hypervisor_list): |
809 | a8083063 | Iustin Pop | """Gather data about all instances.
|
810 | a8083063 | Iustin Pop |
|
811 | 10c2650b | Iustin Pop | This is the equivalent of L{GetInstanceInfo}, except that it
|
812 | a8083063 | Iustin Pop | computes data for all instances at once, thus being faster if one
|
813 | a8083063 | Iustin Pop | needs data about more than one instance.
|
814 | a8083063 | Iustin Pop |
|
815 | e69d05fd | Iustin Pop | @type hypervisor_list: list
|
816 | e69d05fd | Iustin Pop | @param hypervisor_list: list of hypervisors to query for instance data
|
817 | e69d05fd | Iustin Pop |
|
818 | 955db481 | Guido Trotter | @rtype: dict
|
819 | e69d05fd | Iustin Pop | @return: dictionary of instance: data, with data having the following keys:
|
820 | e69d05fd | Iustin Pop | - memory: memory size of instance (int)
|
821 | e69d05fd | Iustin Pop | - state: xen state of instance (string)
|
822 | e69d05fd | Iustin Pop | - time: cpu time of instance (float)
|
823 | 10c2650b | Iustin Pop | - vcpus: the number of vcpus
|
824 | a8083063 | Iustin Pop |
|
825 | 098c0958 | Michael Hanselmann | """
|
826 | a8083063 | Iustin Pop | output = {} |
827 | a8083063 | Iustin Pop | |
828 | e69d05fd | Iustin Pop | for hname in hypervisor_list: |
829 | e69d05fd | Iustin Pop | iinfo = hypervisor.GetHypervisor(hname).GetAllInstancesInfo() |
830 | e69d05fd | Iustin Pop | if iinfo:
|
831 | 29921401 | Iustin Pop | for name, _, memory, vcpus, state, times in iinfo: |
832 | f23b5ae8 | Iustin Pop | value = { |
833 | e69d05fd | Iustin Pop | 'memory': memory,
|
834 | e69d05fd | Iustin Pop | 'vcpus': vcpus,
|
835 | e69d05fd | Iustin Pop | 'state': state,
|
836 | e69d05fd | Iustin Pop | 'time': times,
|
837 | e69d05fd | Iustin Pop | } |
838 | b33b6f55 | Iustin Pop | if name in output: |
839 | b33b6f55 | Iustin Pop | # we only check static parameters, like memory and vcpus,
|
840 | b33b6f55 | Iustin Pop | # and not state and time which can change between the
|
841 | b33b6f55 | Iustin Pop | # invocations of the different hypervisors
|
842 | b33b6f55 | Iustin Pop | for key in 'memory', 'vcpus': |
843 | b33b6f55 | Iustin Pop | if value[key] != output[name][key]:
|
844 | 2fa74ef4 | Iustin Pop | _Fail("Instance %s is running twice"
|
845 | 2fa74ef4 | Iustin Pop | " with different parameters", name)
|
846 | f23b5ae8 | Iustin Pop | output[name] = value |
847 | a8083063 | Iustin Pop | |
848 | c26a6bd2 | Iustin Pop | return output
|
849 | a8083063 | Iustin Pop | |
850 | a8083063 | Iustin Pop | |
851 | 81a3406c | Iustin Pop | def _InstanceLogName(kind, os_name, instance): |
852 | 81a3406c | Iustin Pop | """Compute the OS log filename for a given instance and operation.
|
853 | 81a3406c | Iustin Pop |
|
854 | 81a3406c | Iustin Pop | The instance name and os name are passed in as strings since not all
|
855 | 81a3406c | Iustin Pop | operations have these as part of an instance object.
|
856 | 81a3406c | Iustin Pop |
|
857 | 81a3406c | Iustin Pop | @type kind: string
|
858 | 81a3406c | Iustin Pop | @param kind: the operation type (e.g. add, import, etc.)
|
859 | 81a3406c | Iustin Pop | @type os_name: string
|
860 | 81a3406c | Iustin Pop | @param os_name: the os name
|
861 | 81a3406c | Iustin Pop | @type instance: string
|
862 | 81a3406c | Iustin Pop | @param instance: the name of the instance being imported/added/etc.
|
863 | 81a3406c | Iustin Pop |
|
864 | 81a3406c | Iustin Pop | """
|
865 | 1651d116 | Michael Hanselmann | # TODO: Use tempfile.mkstemp to create unique filename
|
866 | 1d466a4f | Michael Hanselmann | base = ("%s-%s-%s-%s.log" %
|
867 | 1d466a4f | Michael Hanselmann | (kind, os_name, instance, utils.TimestampForFilename())) |
868 | 81a3406c | Iustin Pop | return utils.PathJoin(constants.LOG_OS_DIR, base)
|
869 | 81a3406c | Iustin Pop | |
870 | 81a3406c | Iustin Pop | |
871 | 4a0e011f | Iustin Pop | def InstanceOsAdd(instance, reinstall, debug): |
872 | 2f8598a5 | Alexander Schreiber | """Add an OS to an instance.
|
873 | a8083063 | Iustin Pop |
|
874 | d15a9ad3 | Guido Trotter | @type instance: L{objects.Instance}
|
875 | d15a9ad3 | Guido Trotter | @param instance: Instance whose OS is to be installed
|
876 | e557bae9 | Guido Trotter | @type reinstall: boolean
|
877 | e557bae9 | Guido Trotter | @param reinstall: whether this is an instance reinstall
|
878 | 4a0e011f | Iustin Pop | @type debug: integer
|
879 | 4a0e011f | Iustin Pop | @param debug: debug level, passed to the OS scripts
|
880 | c26a6bd2 | Iustin Pop | @rtype: None
|
881 | a8083063 | Iustin Pop |
|
882 | a8083063 | Iustin Pop | """
|
883 | 255dcebd | Iustin Pop | inst_os = OSFromDisk(instance.os) |
884 | 255dcebd | Iustin Pop | |
885 | 4a0e011f | Iustin Pop | create_env = OSEnvironment(instance, inst_os, debug) |
886 | e557bae9 | Guido Trotter | if reinstall:
|
887 | e557bae9 | Guido Trotter | create_env['INSTANCE_REINSTALL'] = "1" |
888 | a8083063 | Iustin Pop | |
889 | 81a3406c | Iustin Pop | logfile = _InstanceLogName("add", instance.os, instance.name)
|
890 | decd5f45 | Iustin Pop | |
891 | d868edb4 | Iustin Pop | result = utils.RunCmd([inst_os.create_script], env=create_env, |
892 | d868edb4 | Iustin Pop | cwd=inst_os.path, output=logfile,) |
893 | decd5f45 | Iustin Pop | if result.failed:
|
894 | 18682bca | Iustin Pop | logging.error("os create command '%s' returned error: %s, logfile: %s,"
|
895 | d868edb4 | Iustin Pop | " output: %s", result.cmd, result.fail_reason, logfile,
|
896 | 18682bca | Iustin Pop | result.output) |
897 | 26f15862 | Iustin Pop | lines = [utils.SafeEncode(val) |
898 | 20e01edd | Iustin Pop | for val in utils.TailFile(logfile, lines=20)] |
899 | afdc3985 | Iustin Pop | _Fail("OS create script failed (%s), last lines in the"
|
900 | afdc3985 | Iustin Pop | " log file:\n%s", result.fail_reason, "\n".join(lines), log=False) |
901 | decd5f45 | Iustin Pop | |
902 | decd5f45 | Iustin Pop | |
903 | 4a0e011f | Iustin Pop | def RunRenameInstance(instance, old_name, debug): |
904 | decd5f45 | Iustin Pop | """Run the OS rename script for an instance.
|
905 | decd5f45 | Iustin Pop |
|
906 | b1206984 | Iustin Pop | @type instance: L{objects.Instance}
|
907 | d15a9ad3 | Guido Trotter | @param instance: Instance whose OS is to be installed
|
908 | d15a9ad3 | Guido Trotter | @type old_name: string
|
909 | d15a9ad3 | Guido Trotter | @param old_name: previous instance name
|
910 | 4a0e011f | Iustin Pop | @type debug: integer
|
911 | 4a0e011f | Iustin Pop | @param debug: debug level, passed to the OS scripts
|
912 | 10c2650b | Iustin Pop | @rtype: boolean
|
913 | 10c2650b | Iustin Pop | @return: the success of the operation
|
914 | decd5f45 | Iustin Pop |
|
915 | decd5f45 | Iustin Pop | """
|
916 | decd5f45 | Iustin Pop | inst_os = OSFromDisk(instance.os) |
917 | decd5f45 | Iustin Pop | |
918 | 4a0e011f | Iustin Pop | rename_env = OSEnvironment(instance, inst_os, debug) |
919 | ff38b6c0 | Guido Trotter | rename_env['OLD_INSTANCE_NAME'] = old_name
|
920 | decd5f45 | Iustin Pop | |
921 | 81a3406c | Iustin Pop | logfile = _InstanceLogName("rename", instance.os,
|
922 | 81a3406c | Iustin Pop | "%s-%s" % (old_name, instance.name))
|
923 | a8083063 | Iustin Pop | |
924 | d868edb4 | Iustin Pop | result = utils.RunCmd([inst_os.rename_script], env=rename_env, |
925 | d868edb4 | Iustin Pop | cwd=inst_os.path, output=logfile) |
926 | a8083063 | Iustin Pop | |
927 | a8083063 | Iustin Pop | if result.failed:
|
928 | 18682bca | Iustin Pop | logging.error("os create command '%s' returned error: %s output: %s",
|
929 | d868edb4 | Iustin Pop | result.cmd, result.fail_reason, result.output) |
930 | 26f15862 | Iustin Pop | lines = [utils.SafeEncode(val) |
931 | 96841384 | Iustin Pop | for val in utils.TailFile(logfile, lines=20)] |
932 | afdc3985 | Iustin Pop | _Fail("OS rename script failed (%s), last lines in the"
|
933 | afdc3985 | Iustin Pop | " log file:\n%s", result.fail_reason, "\n".join(lines), log=False) |
934 | a8083063 | Iustin Pop | |
935 | a8083063 | Iustin Pop | |
936 | a8083063 | Iustin Pop | def _GetVGInfo(vg_name): |
937 | 5bbd3f7f | Michael Hanselmann | """Get information about the volume group.
|
938 | a8083063 | Iustin Pop |
|
939 | 10c2650b | Iustin Pop | @type vg_name: str
|
940 | 10c2650b | Iustin Pop | @param vg_name: the volume group which we query
|
941 | 10c2650b | Iustin Pop | @rtype: dict
|
942 | 10c2650b | Iustin Pop | @return:
|
943 | 10c2650b | Iustin Pop | A dictionary with the following keys:
|
944 | 10c2650b | Iustin Pop | - C{vg_size} is the total size of the volume group in MiB
|
945 | 10c2650b | Iustin Pop | - C{vg_free} is the free size of the volume group in MiB
|
946 | 10c2650b | Iustin Pop | - C{pv_count} are the number of physical disks in that VG
|
947 | a8083063 | Iustin Pop |
|
948 | 10c2650b | Iustin Pop | If an error occurs during gathering of data, we return the same dict
|
949 | 10c2650b | Iustin Pop | with keys all set to None.
|
950 | f4d377e7 | Iustin Pop |
|
951 | a8083063 | Iustin Pop | """
|
952 | f4d377e7 | Iustin Pop | retdic = dict.fromkeys(["vg_size", "vg_free", "pv_count"]) |
953 | f4d377e7 | Iustin Pop | |
954 | a8083063 | Iustin Pop | retval = utils.RunCmd(["vgs", "-ovg_size,vg_free,pv_count", "--noheadings", |
955 | a8083063 | Iustin Pop | "--nosuffix", "--units=m", "--separator=:", vg_name]) |
956 | a8083063 | Iustin Pop | |
957 | a8083063 | Iustin Pop | if retval.failed:
|
958 | 18682bca | Iustin Pop | logging.error("volume group %s not present", vg_name)
|
959 | f4d377e7 | Iustin Pop | return retdic
|
960 | d87ae7d2 | Iustin Pop | valarr = retval.stdout.strip().rstrip(':').split(':') |
961 | f4d377e7 | Iustin Pop | if len(valarr) == 3: |
962 | f4d377e7 | Iustin Pop | try:
|
963 | f4d377e7 | Iustin Pop | retdic = { |
964 | f4d377e7 | Iustin Pop | "vg_size": int(round(float(valarr[0]), 0)), |
965 | f4d377e7 | Iustin Pop | "vg_free": int(round(float(valarr[1]), 0)), |
966 | f4d377e7 | Iustin Pop | "pv_count": int(valarr[2]), |
967 | f4d377e7 | Iustin Pop | } |
968 | 691744c4 | Iustin Pop | except (TypeError, ValueError), err: |
969 | 29921401 | Iustin Pop | logging.exception("Fail to parse vgs output: %s", err)
|
970 | f4d377e7 | Iustin Pop | else:
|
971 | 18682bca | Iustin Pop | logging.error("vgs output has the wrong number of fields (expected"
|
972 | 18682bca | Iustin Pop | " three): %s", str(valarr)) |
973 | a8083063 | Iustin Pop | return retdic
|
974 | a8083063 | Iustin Pop | |
975 | a8083063 | Iustin Pop | |
976 | 5282084b | Iustin Pop | def _GetBlockDevSymlinkPath(instance_name, idx): |
977 | c4feafe8 | Iustin Pop | return utils.PathJoin(constants.DISK_LINKS_DIR,
|
978 | c4feafe8 | Iustin Pop | "%s:%d" % (instance_name, idx))
|
979 | 5282084b | Iustin Pop | |
980 | 5282084b | Iustin Pop | |
981 | 5282084b | Iustin Pop | def _SymlinkBlockDev(instance_name, device_path, idx): |
982 | 9332fd8a | Iustin Pop | """Set up symlinks to a instance's block device.
|
983 | 9332fd8a | Iustin Pop |
|
984 | 9332fd8a | Iustin Pop | This is an auxiliary function run when an instance is start (on the primary
|
985 | 9332fd8a | Iustin Pop | node) or when an instance is migrated (on the target node).
|
986 | 9332fd8a | Iustin Pop |
|
987 | 9332fd8a | Iustin Pop |
|
988 | 5282084b | Iustin Pop | @param instance_name: the name of the target instance
|
989 | 5282084b | Iustin Pop | @param device_path: path of the physical block device, on the node
|
990 | 5282084b | Iustin Pop | @param idx: the disk index
|
991 | 5282084b | Iustin Pop | @return: absolute path to the disk's symlink
|
992 | 9332fd8a | Iustin Pop |
|
993 | 9332fd8a | Iustin Pop | """
|
994 | 5282084b | Iustin Pop | link_name = _GetBlockDevSymlinkPath(instance_name, idx) |
995 | 9332fd8a | Iustin Pop | try:
|
996 | 9332fd8a | Iustin Pop | os.symlink(device_path, link_name) |
997 | 5282084b | Iustin Pop | except OSError, err: |
998 | 5282084b | Iustin Pop | if err.errno == errno.EEXIST:
|
999 | 9332fd8a | Iustin Pop | if (not os.path.islink(link_name) or |
1000 | 9332fd8a | Iustin Pop | os.readlink(link_name) != device_path): |
1001 | 9332fd8a | Iustin Pop | os.remove(link_name) |
1002 | 9332fd8a | Iustin Pop | os.symlink(device_path, link_name) |
1003 | 9332fd8a | Iustin Pop | else:
|
1004 | 9332fd8a | Iustin Pop | raise
|
1005 | 9332fd8a | Iustin Pop | |
1006 | 9332fd8a | Iustin Pop | return link_name
|
1007 | 9332fd8a | Iustin Pop | |
1008 | 9332fd8a | Iustin Pop | |
1009 | 5282084b | Iustin Pop | def _RemoveBlockDevLinks(instance_name, disks): |
1010 | 3c9c571d | Iustin Pop | """Remove the block device symlinks belonging to the given instance.
|
1011 | 3c9c571d | Iustin Pop |
|
1012 | 3c9c571d | Iustin Pop | """
|
1013 | 29921401 | Iustin Pop | for idx, _ in enumerate(disks): |
1014 | 5282084b | Iustin Pop | link_name = _GetBlockDevSymlinkPath(instance_name, idx) |
1015 | 5282084b | Iustin Pop | if os.path.islink(link_name):
|
1016 | 3c9c571d | Iustin Pop | try:
|
1017 | 03dfa658 | Iustin Pop | os.remove(link_name) |
1018 | 03dfa658 | Iustin Pop | except OSError: |
1019 | 03dfa658 | Iustin Pop | logging.exception("Can't remove symlink '%s'", link_name)
|
1020 | 3c9c571d | Iustin Pop | |
1021 | 3c9c571d | Iustin Pop | |
1022 | 9332fd8a | Iustin Pop | def _GatherAndLinkBlockDevs(instance): |
1023 | a8083063 | Iustin Pop | """Set up an instance's block device(s).
|
1024 | a8083063 | Iustin Pop |
|
1025 | a8083063 | Iustin Pop | This is run on the primary node at instance startup. The block
|
1026 | a8083063 | Iustin Pop | devices must be already assembled.
|
1027 | a8083063 | Iustin Pop |
|
1028 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1029 | 10c2650b | Iustin Pop | @param instance: the instance whose disks we shoul assemble
|
1030 | 069cfbf1 | Iustin Pop | @rtype: list
|
1031 | 069cfbf1 | Iustin Pop | @return: list of (disk_object, device_path)
|
1032 | 10c2650b | Iustin Pop |
|
1033 | a8083063 | Iustin Pop | """
|
1034 | a8083063 | Iustin Pop | block_devices = [] |
1035 | 9332fd8a | Iustin Pop | for idx, disk in enumerate(instance.disks): |
1036 | a8083063 | Iustin Pop | device = _RecursiveFindBD(disk) |
1037 | a8083063 | Iustin Pop | if device is None: |
1038 | a8083063 | Iustin Pop | raise errors.BlockDeviceError("Block device '%s' is not set up." % |
1039 | a8083063 | Iustin Pop | str(disk))
|
1040 | a8083063 | Iustin Pop | device.Open() |
1041 | 9332fd8a | Iustin Pop | try:
|
1042 | 5282084b | Iustin Pop | link_name = _SymlinkBlockDev(instance.name, device.dev_path, idx) |
1043 | 9332fd8a | Iustin Pop | except OSError, e: |
1044 | 9332fd8a | Iustin Pop | raise errors.BlockDeviceError("Cannot create block device symlink: %s" % |
1045 | 9332fd8a | Iustin Pop | e.strerror) |
1046 | 9332fd8a | Iustin Pop | |
1047 | 9332fd8a | Iustin Pop | block_devices.append((disk, link_name)) |
1048 | 9332fd8a | Iustin Pop | |
1049 | a8083063 | Iustin Pop | return block_devices
|
1050 | a8083063 | Iustin Pop | |
1051 | a8083063 | Iustin Pop | |
1052 | 07813a9e | Iustin Pop | def StartInstance(instance): |
1053 | a8083063 | Iustin Pop | """Start an instance.
|
1054 | a8083063 | Iustin Pop |
|
1055 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1056 | e69d05fd | Iustin Pop | @param instance: the instance object
|
1057 | c26a6bd2 | Iustin Pop | @rtype: None
|
1058 | a8083063 | Iustin Pop |
|
1059 | 098c0958 | Michael Hanselmann | """
|
1060 | e69d05fd | Iustin Pop | running_instances = GetInstanceList([instance.hypervisor]) |
1061 | a8083063 | Iustin Pop | |
1062 | a8083063 | Iustin Pop | if instance.name in running_instances: |
1063 | c26a6bd2 | Iustin Pop | logging.info("Instance %s already running, not starting", instance.name)
|
1064 | c26a6bd2 | Iustin Pop | return
|
1065 | a8083063 | Iustin Pop | |
1066 | a8083063 | Iustin Pop | try:
|
1067 | ec596c24 | Iustin Pop | block_devices = _GatherAndLinkBlockDevs(instance) |
1068 | ec596c24 | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1069 | 07813a9e | Iustin Pop | hyper.StartInstance(instance, block_devices) |
1070 | ec596c24 | Iustin Pop | except errors.BlockDeviceError, err:
|
1071 | 2cc6781a | Iustin Pop | _Fail("Block device error: %s", err, exc=True) |
1072 | a8083063 | Iustin Pop | except errors.HypervisorError, err:
|
1073 | 5282084b | Iustin Pop | _RemoveBlockDevLinks(instance.name, instance.disks) |
1074 | 2cc6781a | Iustin Pop | _Fail("Hypervisor error: %s", err, exc=True) |
1075 | a8083063 | Iustin Pop | |
1076 | a8083063 | Iustin Pop | |
1077 | 6263189c | Guido Trotter | def InstanceShutdown(instance, timeout): |
1078 | a8083063 | Iustin Pop | """Shut an instance down.
|
1079 | a8083063 | Iustin Pop |
|
1080 | 10c2650b | Iustin Pop | @note: this functions uses polling with a hardcoded timeout.
|
1081 | 10c2650b | Iustin Pop |
|
1082 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1083 | e69d05fd | Iustin Pop | @param instance: the instance object
|
1084 | 6263189c | Guido Trotter | @type timeout: integer
|
1085 | 6263189c | Guido Trotter | @param timeout: maximum timeout for soft shutdown
|
1086 | c26a6bd2 | Iustin Pop | @rtype: None
|
1087 | a8083063 | Iustin Pop |
|
1088 | 098c0958 | Michael Hanselmann | """
|
1089 | e69d05fd | Iustin Pop | hv_name = instance.hypervisor |
1090 | e4e9b806 | Guido Trotter | hyper = hypervisor.GetHypervisor(hv_name) |
1091 | c26a6bd2 | Iustin Pop | iname = instance.name |
1092 | a8083063 | Iustin Pop | |
1093 | 3c0cdc83 | Michael Hanselmann | if instance.name not in hyper.ListInstances(): |
1094 | c26a6bd2 | Iustin Pop | logging.info("Instance %s not running, doing nothing", iname)
|
1095 | c26a6bd2 | Iustin Pop | return
|
1096 | a8083063 | Iustin Pop | |
1097 | 3c0cdc83 | Michael Hanselmann | class _TryShutdown: |
1098 | 3c0cdc83 | Michael Hanselmann | def __init__(self): |
1099 | 3c0cdc83 | Michael Hanselmann | self.tried_once = False |
1100 | a8083063 | Iustin Pop | |
1101 | 3c0cdc83 | Michael Hanselmann | def __call__(self): |
1102 | 3c0cdc83 | Michael Hanselmann | if iname not in hyper.ListInstances(): |
1103 | 3c0cdc83 | Michael Hanselmann | return
|
1104 | 3c0cdc83 | Michael Hanselmann | |
1105 | 3c0cdc83 | Michael Hanselmann | try:
|
1106 | 3c0cdc83 | Michael Hanselmann | hyper.StopInstance(instance, retry=self.tried_once)
|
1107 | 3c0cdc83 | Michael Hanselmann | except errors.HypervisorError, err:
|
1108 | 3c0cdc83 | Michael Hanselmann | if iname not in hyper.ListInstances(): |
1109 | 3c0cdc83 | Michael Hanselmann | # if the instance is no longer existing, consider this a
|
1110 | 3c0cdc83 | Michael Hanselmann | # success and go to cleanup
|
1111 | 3c0cdc83 | Michael Hanselmann | return
|
1112 | 3c0cdc83 | Michael Hanselmann | |
1113 | 3c0cdc83 | Michael Hanselmann | _Fail("Failed to stop instance %s: %s", iname, err)
|
1114 | 3c0cdc83 | Michael Hanselmann | |
1115 | 3c0cdc83 | Michael Hanselmann | self.tried_once = True |
1116 | 3c0cdc83 | Michael Hanselmann | |
1117 | 3c0cdc83 | Michael Hanselmann | raise utils.RetryAgain()
|
1118 | 3c0cdc83 | Michael Hanselmann | |
1119 | 3c0cdc83 | Michael Hanselmann | try:
|
1120 | 3c0cdc83 | Michael Hanselmann | utils.Retry(_TryShutdown(), 5, timeout)
|
1121 | 3c0cdc83 | Michael Hanselmann | except utils.RetryTimeout:
|
1122 | a8083063 | Iustin Pop | # the shutdown did not succeed
|
1123 | e4e9b806 | Guido Trotter | logging.error("Shutdown of '%s' unsuccessful, forcing", iname)
|
1124 | a8083063 | Iustin Pop | |
1125 | a8083063 | Iustin Pop | try:
|
1126 | a8083063 | Iustin Pop | hyper.StopInstance(instance, force=True)
|
1127 | a8083063 | Iustin Pop | except errors.HypervisorError, err:
|
1128 | 3c0cdc83 | Michael Hanselmann | if iname in hyper.ListInstances(): |
1129 | 3782acd7 | Iustin Pop | # only raise an error if the instance still exists, otherwise
|
1130 | 3782acd7 | Iustin Pop | # the error could simply be "instance ... unknown"!
|
1131 | 3782acd7 | Iustin Pop | _Fail("Failed to force stop instance %s: %s", iname, err)
|
1132 | a8083063 | Iustin Pop | |
1133 | a8083063 | Iustin Pop | time.sleep(1)
|
1134 | 3c0cdc83 | Michael Hanselmann | |
1135 | 3c0cdc83 | Michael Hanselmann | if iname in hyper.ListInstances(): |
1136 | c26a6bd2 | Iustin Pop | _Fail("Could not shutdown instance %s even by destroy", iname)
|
1137 | 3c9c571d | Iustin Pop | |
1138 | f28ec899 | Guido Trotter | try:
|
1139 | f28ec899 | Guido Trotter | hyper.CleanupInstance(instance.name) |
1140 | f28ec899 | Guido Trotter | except errors.HypervisorError, err:
|
1141 | f28ec899 | Guido Trotter | logging.warning("Failed to execute post-shutdown cleanup step: %s", err)
|
1142 | f28ec899 | Guido Trotter | |
1143 | c26a6bd2 | Iustin Pop | _RemoveBlockDevLinks(iname, instance.disks) |
1144 | a8083063 | Iustin Pop | |
1145 | a8083063 | Iustin Pop | |
1146 | 17c3f802 | Guido Trotter | def InstanceReboot(instance, reboot_type, shutdown_timeout): |
1147 | 007a2f3e | Alexander Schreiber | """Reboot an instance.
|
1148 | 007a2f3e | Alexander Schreiber |
|
1149 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
1150 | 10c2650b | Iustin Pop | @param instance: the instance object to reboot
|
1151 | 10c2650b | Iustin Pop | @type reboot_type: str
|
1152 | 10c2650b | Iustin Pop | @param reboot_type: the type of reboot, one the following
|
1153 | 10c2650b | Iustin Pop | constants:
|
1154 | 10c2650b | Iustin Pop | - L{constants.INSTANCE_REBOOT_SOFT}: only reboot the
|
1155 | 10c2650b | Iustin Pop | instance OS, do not recreate the VM
|
1156 | 10c2650b | Iustin Pop | - L{constants.INSTANCE_REBOOT_HARD}: tear down and
|
1157 | 10c2650b | Iustin Pop | restart the VM (at the hypervisor level)
|
1158 | 73e5a4f4 | Iustin Pop | - the other reboot type (L{constants.INSTANCE_REBOOT_FULL}) is
|
1159 | 73e5a4f4 | Iustin Pop | not accepted here, since that mode is handled differently, in
|
1160 | 73e5a4f4 | Iustin Pop | cmdlib, and translates into full stop and start of the
|
1161 | 73e5a4f4 | Iustin Pop | instance (instead of a call_instance_reboot RPC)
|
1162 | 23057d29 | Michael Hanselmann | @type shutdown_timeout: integer
|
1163 | 23057d29 | Michael Hanselmann | @param shutdown_timeout: maximum timeout for soft shutdown
|
1164 | c26a6bd2 | Iustin Pop | @rtype: None
|
1165 | 007a2f3e | Alexander Schreiber |
|
1166 | 007a2f3e | Alexander Schreiber | """
|
1167 | e69d05fd | Iustin Pop | running_instances = GetInstanceList([instance.hypervisor]) |
1168 | 007a2f3e | Alexander Schreiber | |
1169 | 007a2f3e | Alexander Schreiber | if instance.name not in running_instances: |
1170 | 2cc6781a | Iustin Pop | _Fail("Cannot reboot instance %s that is not running", instance.name)
|
1171 | 007a2f3e | Alexander Schreiber | |
1172 | e69d05fd | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1173 | 007a2f3e | Alexander Schreiber | if reboot_type == constants.INSTANCE_REBOOT_SOFT:
|
1174 | 007a2f3e | Alexander Schreiber | try:
|
1175 | 007a2f3e | Alexander Schreiber | hyper.RebootInstance(instance) |
1176 | 007a2f3e | Alexander Schreiber | except errors.HypervisorError, err:
|
1177 | 2cc6781a | Iustin Pop | _Fail("Failed to soft reboot instance %s: %s", instance.name, err)
|
1178 | 007a2f3e | Alexander Schreiber | elif reboot_type == constants.INSTANCE_REBOOT_HARD:
|
1179 | 007a2f3e | Alexander Schreiber | try:
|
1180 | 17c3f802 | Guido Trotter | InstanceShutdown(instance, shutdown_timeout) |
1181 | 07813a9e | Iustin Pop | return StartInstance(instance)
|
1182 | 007a2f3e | Alexander Schreiber | except errors.HypervisorError, err:
|
1183 | 2cc6781a | Iustin Pop | _Fail("Failed to hard reboot instance %s: %s", instance.name, err)
|
1184 | 007a2f3e | Alexander Schreiber | else:
|
1185 | 2cc6781a | Iustin Pop | _Fail("Invalid reboot_type received: %s", reboot_type)
|
1186 | 007a2f3e | Alexander Schreiber | |
1187 | 007a2f3e | Alexander Schreiber | |
1188 | 6906a9d8 | Guido Trotter | def MigrationInfo(instance): |
1189 | 6906a9d8 | Guido Trotter | """Gather information about an instance to be migrated.
|
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 |
|
1194 | 6906a9d8 | Guido Trotter | """
|
1195 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1196 | cd42d0ad | Guido Trotter | try:
|
1197 | cd42d0ad | Guido Trotter | info = hyper.MigrationInfo(instance) |
1198 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1199 | 2cc6781a | Iustin Pop | _Fail("Failed to fetch migration information: %s", err, exc=True) |
1200 | c26a6bd2 | Iustin Pop | return info
|
1201 | 6906a9d8 | Guido Trotter | |
1202 | 6906a9d8 | Guido Trotter | |
1203 | 6906a9d8 | Guido Trotter | def AcceptInstance(instance, info, target): |
1204 | 6906a9d8 | Guido Trotter | """Prepare the node to accept an instance.
|
1205 | 6906a9d8 | Guido Trotter |
|
1206 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1207 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1208 | 6906a9d8 | Guido Trotter | @type info: string/data (opaque)
|
1209 | 6906a9d8 | Guido Trotter | @param info: migration information, from the source node
|
1210 | 6906a9d8 | Guido Trotter | @type target: string
|
1211 | 6906a9d8 | Guido Trotter | @param target: target host (usually ip), on this node
|
1212 | 6906a9d8 | Guido Trotter |
|
1213 | 6906a9d8 | Guido Trotter | """
|
1214 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1215 | cd42d0ad | Guido Trotter | try:
|
1216 | cd42d0ad | Guido Trotter | hyper.AcceptInstance(instance, info, target) |
1217 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1218 | 2cc6781a | Iustin Pop | _Fail("Failed to accept instance: %s", err, exc=True) |
1219 | 6906a9d8 | Guido Trotter | |
1220 | 6906a9d8 | Guido Trotter | |
1221 | 6906a9d8 | Guido Trotter | def FinalizeMigration(instance, info, success): |
1222 | 6906a9d8 | Guido Trotter | """Finalize any preparation to accept an instance.
|
1223 | 6906a9d8 | Guido Trotter |
|
1224 | 6906a9d8 | Guido Trotter | @type instance: L{objects.Instance}
|
1225 | 6906a9d8 | Guido Trotter | @param instance: the instance definition
|
1226 | 6906a9d8 | Guido Trotter | @type info: string/data (opaque)
|
1227 | 6906a9d8 | Guido Trotter | @param info: migration information, from the source node
|
1228 | 6906a9d8 | Guido Trotter | @type success: boolean
|
1229 | 6906a9d8 | Guido Trotter | @param success: whether the migration was a success or a failure
|
1230 | 6906a9d8 | Guido Trotter |
|
1231 | 6906a9d8 | Guido Trotter | """
|
1232 | cd42d0ad | Guido Trotter | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1233 | cd42d0ad | Guido Trotter | try:
|
1234 | cd42d0ad | Guido Trotter | hyper.FinalizeMigration(instance, info, success) |
1235 | cd42d0ad | Guido Trotter | except errors.HypervisorError, err:
|
1236 | 2cc6781a | Iustin Pop | _Fail("Failed to finalize migration: %s", err, exc=True) |
1237 | 6906a9d8 | Guido Trotter | |
1238 | 6906a9d8 | Guido Trotter | |
1239 | 2a10865c | Iustin Pop | def MigrateInstance(instance, target, live): |
1240 | 2a10865c | Iustin Pop | """Migrates an instance to another node.
|
1241 | 2a10865c | Iustin Pop |
|
1242 | b1206984 | Iustin Pop | @type instance: L{objects.Instance}
|
1243 | 9f0e6b37 | Iustin Pop | @param instance: the instance definition
|
1244 | 9f0e6b37 | Iustin Pop | @type target: string
|
1245 | 9f0e6b37 | Iustin Pop | @param target: the target node name
|
1246 | 9f0e6b37 | Iustin Pop | @type live: boolean
|
1247 | 9f0e6b37 | Iustin Pop | @param live: whether the migration should be done live or not (the
|
1248 | 9f0e6b37 | Iustin Pop | interpretation of this parameter is left to the hypervisor)
|
1249 | 9f0e6b37 | Iustin Pop | @rtype: tuple
|
1250 | 9f0e6b37 | Iustin Pop | @return: a tuple of (success, msg) where:
|
1251 | 9f0e6b37 | Iustin Pop | - succes is a boolean denoting the success/failure of the operation
|
1252 | 9f0e6b37 | Iustin Pop | - msg is a string with details in case of failure
|
1253 | 9f0e6b37 | Iustin Pop |
|
1254 | 2a10865c | Iustin Pop | """
|
1255 | 53c776b5 | Iustin Pop | hyper = hypervisor.GetHypervisor(instance.hypervisor) |
1256 | 2a10865c | Iustin Pop | |
1257 | 2a10865c | Iustin Pop | try:
|
1258 | 58d38b02 | Iustin Pop | hyper.MigrateInstance(instance, target, live) |
1259 | 2a10865c | Iustin Pop | except errors.HypervisorError, err:
|
1260 | 2cc6781a | Iustin Pop | _Fail("Failed to migrate instance: %s", err, exc=True) |
1261 | 2a10865c | Iustin Pop | |
1262 | 2a10865c | Iustin Pop | |
1263 | 821d1bd1 | Iustin Pop | def BlockdevCreate(disk, size, owner, on_primary, info): |
1264 | a8083063 | Iustin Pop | """Creates a block device for an instance.
|
1265 | a8083063 | Iustin Pop |
|
1266 | b1206984 | Iustin Pop | @type disk: L{objects.Disk}
|
1267 | b1206984 | Iustin Pop | @param disk: the object describing the disk we should create
|
1268 | b1206984 | Iustin Pop | @type size: int
|
1269 | b1206984 | Iustin Pop | @param size: the size of the physical underlying device, in MiB
|
1270 | b1206984 | Iustin Pop | @type owner: str
|
1271 | b1206984 | Iustin Pop | @param owner: the name of the instance for which disk is created,
|
1272 | b1206984 | Iustin Pop | used for device cache data
|
1273 | b1206984 | Iustin Pop | @type on_primary: boolean
|
1274 | b1206984 | Iustin Pop | @param on_primary: indicates if it is the primary node or not
|
1275 | b1206984 | Iustin Pop | @type info: string
|
1276 | b1206984 | Iustin Pop | @param info: string that will be sent to the physical device
|
1277 | b1206984 | Iustin Pop | creation, used for example to set (LVM) tags on LVs
|
1278 | b1206984 | Iustin Pop |
|
1279 | b1206984 | Iustin Pop | @return: the new unique_id of the device (this can sometime be
|
1280 | b1206984 | Iustin Pop | computed only after creation), or None. On secondary nodes,
|
1281 | b1206984 | Iustin Pop | it's not required to return anything.
|
1282 | a8083063 | Iustin Pop |
|
1283 | a8083063 | Iustin Pop | """
|
1284 | 7260cfbe | Iustin Pop | # TODO: remove the obsolete 'size' argument
|
1285 | 7260cfbe | Iustin Pop | # pylint: disable-msg=W0613
|
1286 | a8083063 | Iustin Pop | clist = [] |
1287 | a8083063 | Iustin Pop | if disk.children:
|
1288 | a8083063 | Iustin Pop | for child in disk.children: |
1289 | 1063abd1 | Iustin Pop | try:
|
1290 | 1063abd1 | Iustin Pop | crdev = _RecursiveAssembleBD(child, owner, on_primary) |
1291 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1292 | 2cc6781a | Iustin Pop | _Fail("Can't assemble device %s: %s", child, err)
|
1293 | a8083063 | Iustin Pop | if on_primary or disk.AssembleOnSecondary(): |
1294 | a8083063 | Iustin Pop | # we need the children open in case the device itself has to
|
1295 | a8083063 | Iustin Pop | # be assembled
|
1296 | 1063abd1 | Iustin Pop | try:
|
1297 | fe267188 | Iustin Pop | # pylint: disable-msg=E1103
|
1298 | 1063abd1 | Iustin Pop | crdev.Open() |
1299 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1300 | 2cc6781a | Iustin Pop | _Fail("Can't make child '%s' read-write: %s", child, err)
|
1301 | a8083063 | Iustin Pop | clist.append(crdev) |
1302 | a8083063 | Iustin Pop | |
1303 | dab69e97 | Iustin Pop | try:
|
1304 | 464f8daf | Iustin Pop | device = bdev.Create(disk.dev_type, disk.physical_id, clist, disk.size) |
1305 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1306 | 2cc6781a | Iustin Pop | _Fail("Can't create block device: %s", err)
|
1307 | 6c626518 | Iustin Pop | |
1308 | a8083063 | Iustin Pop | if on_primary or disk.AssembleOnSecondary(): |
1309 | 1063abd1 | Iustin Pop | try:
|
1310 | 1063abd1 | Iustin Pop | device.Assemble() |
1311 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1312 | 2cc6781a | Iustin Pop | _Fail("Can't assemble device after creation, unusual event: %s", err)
|
1313 | e31c43f7 | Michael Hanselmann | device.SetSyncSpeed(constants.SYNC_SPEED) |
1314 | a8083063 | Iustin Pop | if on_primary or disk.OpenOnSecondary(): |
1315 | 1063abd1 | Iustin Pop | try:
|
1316 | 1063abd1 | Iustin Pop | device.Open(force=True)
|
1317 | 1063abd1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1318 | 2cc6781a | Iustin Pop | _Fail("Can't make device r/w after creation, unusual event: %s", err)
|
1319 | 3f78eef2 | Iustin Pop | DevCacheManager.UpdateCache(device.dev_path, owner, |
1320 | 3f78eef2 | Iustin Pop | on_primary, disk.iv_name) |
1321 | a0c3fea1 | Michael Hanselmann | |
1322 | a0c3fea1 | Michael Hanselmann | device.SetInfo(info) |
1323 | a0c3fea1 | Michael Hanselmann | |
1324 | c26a6bd2 | Iustin Pop | return device.unique_id
|
1325 | a8083063 | Iustin Pop | |
1326 | a8083063 | Iustin Pop | |
1327 | 821d1bd1 | Iustin Pop | def BlockdevRemove(disk): |
1328 | a8083063 | Iustin Pop | """Remove a block device.
|
1329 | a8083063 | Iustin Pop |
|
1330 | 10c2650b | Iustin Pop | @note: This is intended to be called recursively.
|
1331 | 10c2650b | Iustin Pop |
|
1332 | c41eea6e | Iustin Pop | @type disk: L{objects.Disk}
|
1333 | 10c2650b | Iustin Pop | @param disk: the disk object we should remove
|
1334 | 10c2650b | Iustin Pop | @rtype: boolean
|
1335 | 10c2650b | Iustin Pop | @return: the success of the operation
|
1336 | a8083063 | Iustin Pop |
|
1337 | a8083063 | Iustin Pop | """
|
1338 | e1bc0878 | Iustin Pop | msgs = [] |
1339 | a8083063 | Iustin Pop | try:
|
1340 | bca2e7f4 | Iustin Pop | rdev = _RecursiveFindBD(disk) |
1341 | a8083063 | Iustin Pop | except errors.BlockDeviceError, err:
|
1342 | a8083063 | Iustin Pop | # probably can't attach
|
1343 | 18682bca | Iustin Pop | logging.info("Can't attach to device %s in remove", disk)
|
1344 | a8083063 | Iustin Pop | rdev = None
|
1345 | a8083063 | Iustin Pop | if rdev is not None: |
1346 | 3f78eef2 | Iustin Pop | r_path = rdev.dev_path |
1347 | e1bc0878 | Iustin Pop | try:
|
1348 | 0c6c04ec | Iustin Pop | rdev.Remove() |
1349 | e1bc0878 | Iustin Pop | except errors.BlockDeviceError, err:
|
1350 | e1bc0878 | Iustin Pop | msgs.append(str(err))
|
1351 | c26a6bd2 | Iustin Pop | if not msgs: |
1352 | 3f78eef2 | Iustin Pop | DevCacheManager.RemoveCache(r_path) |
1353 | e1bc0878 | Iustin Pop | |
1354 | a8083063 | Iustin Pop | if disk.children:
|
1355 | a8083063 | Iustin Pop | for child in disk.children: |
1356 | c26a6bd2 | Iustin Pop | try:
|
1357 | c26a6bd2 | Iustin Pop | BlockdevRemove(child) |
1358 | c26a6bd2 | Iustin Pop | except RPCFail, err:
|
1359 | c26a6bd2 | Iustin Pop | msgs.append(str(err))
|
1360 | e1bc0878 | Iustin Pop | |
1361 | c26a6bd2 | Iustin Pop | if msgs:
|
1362 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
1363 | afdc3985 | Iustin Pop | |
1364 | a8083063 | Iustin Pop | |
1365 | 3f78eef2 | Iustin Pop | def _RecursiveAssembleBD(disk, owner, as_primary): |
1366 | a8083063 | Iustin Pop | """Activate a block device for an instance.
|
1367 | a8083063 | Iustin Pop |
|
1368 | a8083063 | Iustin Pop | This is run on the primary and secondary nodes for an instance.
|
1369 | a8083063 | Iustin Pop |
|
1370 | 10c2650b | Iustin Pop | @note: this function is called recursively.
|
1371 | a8083063 | Iustin Pop |
|
1372 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1373 | 10c2650b | Iustin Pop | @param disk: the disk we try to assemble
|
1374 | 10c2650b | Iustin Pop | @type owner: str
|
1375 | 10c2650b | Iustin Pop | @param owner: the name of the instance which owns the disk
|
1376 | 10c2650b | Iustin Pop | @type as_primary: boolean
|
1377 | 10c2650b | Iustin Pop | @param as_primary: if we should make the block device
|
1378 | 10c2650b | Iustin Pop | read/write
|
1379 | a8083063 | Iustin Pop |
|
1380 | 10c2650b | Iustin Pop | @return: the assembled device or None (in case no device
|
1381 | 10c2650b | Iustin Pop | was assembled)
|
1382 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: in case there is an error
|
1383 | 10c2650b | Iustin Pop | during the activation of the children or the device
|
1384 | 10c2650b | Iustin Pop | itself
|
1385 | a8083063 | Iustin Pop |
|
1386 | a8083063 | Iustin Pop | """
|
1387 | a8083063 | Iustin Pop | children = [] |
1388 | a8083063 | Iustin Pop | if disk.children:
|
1389 | fc1dc9d7 | Iustin Pop | mcn = disk.ChildrenNeeded() |
1390 | fc1dc9d7 | Iustin Pop | if mcn == -1: |
1391 | fc1dc9d7 | Iustin Pop | mcn = 0 # max number of Nones allowed |
1392 | fc1dc9d7 | Iustin Pop | else:
|
1393 | fc1dc9d7 | Iustin Pop | mcn = len(disk.children) - mcn # max number of Nones |
1394 | a8083063 | Iustin Pop | for chld_disk in disk.children: |
1395 | fc1dc9d7 | Iustin Pop | try:
|
1396 | fc1dc9d7 | Iustin Pop | cdev = _RecursiveAssembleBD(chld_disk, owner, as_primary) |
1397 | fc1dc9d7 | Iustin Pop | except errors.BlockDeviceError, err:
|
1398 | 7803d4d3 | Iustin Pop | if children.count(None) >= mcn: |
1399 | fc1dc9d7 | Iustin Pop | raise
|
1400 | fc1dc9d7 | Iustin Pop | cdev = None
|
1401 | 1063abd1 | Iustin Pop | logging.error("Error in child activation (but continuing): %s",
|
1402 | 1063abd1 | Iustin Pop | str(err))
|
1403 | fc1dc9d7 | Iustin Pop | children.append(cdev) |
1404 | a8083063 | Iustin Pop | |
1405 | a8083063 | Iustin Pop | if as_primary or disk.AssembleOnSecondary(): |
1406 | 464f8daf | Iustin Pop | r_dev = bdev.Assemble(disk.dev_type, disk.physical_id, children, disk.size) |
1407 | e31c43f7 | Michael Hanselmann | r_dev.SetSyncSpeed(constants.SYNC_SPEED) |
1408 | a8083063 | Iustin Pop | result = r_dev |
1409 | a8083063 | Iustin Pop | if as_primary or disk.OpenOnSecondary(): |
1410 | a8083063 | Iustin Pop | r_dev.Open() |
1411 | 3f78eef2 | Iustin Pop | DevCacheManager.UpdateCache(r_dev.dev_path, owner, |
1412 | 3f78eef2 | Iustin Pop | as_primary, disk.iv_name) |
1413 | 3f78eef2 | Iustin Pop | |
1414 | a8083063 | Iustin Pop | else:
|
1415 | a8083063 | Iustin Pop | result = True
|
1416 | a8083063 | Iustin Pop | return result
|
1417 | a8083063 | Iustin Pop | |
1418 | a8083063 | Iustin Pop | |
1419 | 821d1bd1 | Iustin Pop | def BlockdevAssemble(disk, owner, as_primary): |
1420 | a8083063 | Iustin Pop | """Activate a block device for an instance.
|
1421 | a8083063 | Iustin Pop |
|
1422 | a8083063 | Iustin Pop | This is a wrapper over _RecursiveAssembleBD.
|
1423 | a8083063 | Iustin Pop |
|
1424 | b1206984 | Iustin Pop | @rtype: str or boolean
|
1425 | b1206984 | Iustin Pop | @return: a C{/dev/...} path for primary nodes, and
|
1426 | b1206984 | Iustin Pop | C{True} for secondary nodes
|
1427 | a8083063 | Iustin Pop |
|
1428 | a8083063 | Iustin Pop | """
|
1429 | 53c14ef1 | Iustin Pop | try:
|
1430 | 53c14ef1 | Iustin Pop | result = _RecursiveAssembleBD(disk, owner, as_primary) |
1431 | 53c14ef1 | Iustin Pop | if isinstance(result, bdev.BlockDev): |
1432 | fe267188 | Iustin Pop | # pylint: disable-msg=E1103
|
1433 | 53c14ef1 | Iustin Pop | result = result.dev_path |
1434 | 53c14ef1 | Iustin Pop | except errors.BlockDeviceError, err:
|
1435 | afdc3985 | Iustin Pop | _Fail("Error while assembling disk: %s", err, exc=True) |
1436 | afdc3985 | Iustin Pop | |
1437 | c26a6bd2 | Iustin Pop | return result
|
1438 | a8083063 | Iustin Pop | |
1439 | a8083063 | Iustin Pop | |
1440 | 821d1bd1 | Iustin Pop | def BlockdevShutdown(disk): |
1441 | a8083063 | Iustin Pop | """Shut down a block device.
|
1442 | a8083063 | Iustin Pop |
|
1443 | 5bbd3f7f | Michael Hanselmann | First, if the device is assembled (Attach() is successful), then
|
1444 | c41eea6e | Iustin Pop | the device is shutdown. Then the children of the device are
|
1445 | c41eea6e | Iustin Pop | shutdown.
|
1446 | a8083063 | Iustin Pop |
|
1447 | a8083063 | Iustin Pop | This function is called recursively. Note that we don't cache the
|
1448 | a8083063 | Iustin Pop | children or such, as oppossed to assemble, shutdown of different
|
1449 | a8083063 | Iustin Pop | devices doesn't require that the upper device was active.
|
1450 | a8083063 | Iustin Pop |
|
1451 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1452 | 10c2650b | Iustin Pop | @param disk: the description of the disk we should
|
1453 | 10c2650b | Iustin Pop | shutdown
|
1454 | c26a6bd2 | Iustin Pop | @rtype: None
|
1455 | 10c2650b | Iustin Pop |
|
1456 | a8083063 | Iustin Pop | """
|
1457 | cacfd1fd | Iustin Pop | msgs = [] |
1458 | a8083063 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
1459 | a8083063 | Iustin Pop | if r_dev is not None: |
1460 | 3f78eef2 | Iustin Pop | r_path = r_dev.dev_path |
1461 | cacfd1fd | Iustin Pop | try:
|
1462 | 746f7476 | Iustin Pop | r_dev.Shutdown() |
1463 | 746f7476 | Iustin Pop | DevCacheManager.RemoveCache(r_path) |
1464 | cacfd1fd | Iustin Pop | except errors.BlockDeviceError, err:
|
1465 | cacfd1fd | Iustin Pop | msgs.append(str(err))
|
1466 | 746f7476 | Iustin Pop | |
1467 | a8083063 | Iustin Pop | if disk.children:
|
1468 | a8083063 | Iustin Pop | for child in disk.children: |
1469 | c26a6bd2 | Iustin Pop | try:
|
1470 | c26a6bd2 | Iustin Pop | BlockdevShutdown(child) |
1471 | c26a6bd2 | Iustin Pop | except RPCFail, err:
|
1472 | c26a6bd2 | Iustin Pop | msgs.append(str(err))
|
1473 | 746f7476 | Iustin Pop | |
1474 | c26a6bd2 | Iustin Pop | if msgs:
|
1475 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
1476 | a8083063 | Iustin Pop | |
1477 | a8083063 | Iustin Pop | |
1478 | 821d1bd1 | Iustin Pop | def BlockdevAddchildren(parent_cdev, new_cdevs): |
1479 | 153d9724 | Iustin Pop | """Extend a mirrored block device.
|
1480 | a8083063 | Iustin Pop |
|
1481 | 10c2650b | Iustin Pop | @type parent_cdev: L{objects.Disk}
|
1482 | 10c2650b | Iustin Pop | @param parent_cdev: the disk to which we should add children
|
1483 | 10c2650b | Iustin Pop | @type new_cdevs: list of L{objects.Disk}
|
1484 | 10c2650b | Iustin Pop | @param new_cdevs: the list of children which we should add
|
1485 | c26a6bd2 | Iustin Pop | @rtype: None
|
1486 | 10c2650b | Iustin Pop |
|
1487 | a8083063 | Iustin Pop | """
|
1488 | bca2e7f4 | Iustin Pop | parent_bdev = _RecursiveFindBD(parent_cdev) |
1489 | 153d9724 | Iustin Pop | if parent_bdev is None: |
1490 | 2cc6781a | Iustin Pop | _Fail("Can't find parent device '%s' in add children", parent_cdev)
|
1491 | 153d9724 | Iustin Pop | new_bdevs = [_RecursiveFindBD(disk) for disk in new_cdevs] |
1492 | 153d9724 | Iustin Pop | if new_bdevs.count(None) > 0: |
1493 | 2cc6781a | Iustin Pop | _Fail("Can't find new device(s) to add: %s:%s", new_bdevs, new_cdevs)
|
1494 | 153d9724 | Iustin Pop | parent_bdev.AddChildren(new_bdevs) |
1495 | a8083063 | Iustin Pop | |
1496 | a8083063 | Iustin Pop | |
1497 | 821d1bd1 | Iustin Pop | def BlockdevRemovechildren(parent_cdev, new_cdevs): |
1498 | 153d9724 | Iustin Pop | """Shrink a mirrored block device.
|
1499 | a8083063 | Iustin Pop |
|
1500 | 10c2650b | Iustin Pop | @type parent_cdev: L{objects.Disk}
|
1501 | 10c2650b | Iustin Pop | @param parent_cdev: the disk from which we should remove children
|
1502 | 10c2650b | Iustin Pop | @type new_cdevs: list of L{objects.Disk}
|
1503 | 10c2650b | Iustin Pop | @param new_cdevs: the list of children which we should remove
|
1504 | c26a6bd2 | Iustin Pop | @rtype: None
|
1505 | 10c2650b | Iustin Pop |
|
1506 | a8083063 | Iustin Pop | """
|
1507 | 153d9724 | Iustin Pop | parent_bdev = _RecursiveFindBD(parent_cdev) |
1508 | 153d9724 | Iustin Pop | if parent_bdev is None: |
1509 | 2cc6781a | Iustin Pop | _Fail("Can't find parent device '%s' in remove children", parent_cdev)
|
1510 | e739bd57 | Iustin Pop | devs = [] |
1511 | e739bd57 | Iustin Pop | for disk in new_cdevs: |
1512 | e739bd57 | Iustin Pop | rpath = disk.StaticDevPath() |
1513 | e739bd57 | Iustin Pop | if rpath is None: |
1514 | e739bd57 | Iustin Pop | bd = _RecursiveFindBD(disk) |
1515 | e739bd57 | Iustin Pop | if bd is None: |
1516 | 2cc6781a | Iustin Pop | _Fail("Can't find device %s while removing children", disk)
|
1517 | e739bd57 | Iustin Pop | else:
|
1518 | e739bd57 | Iustin Pop | devs.append(bd.dev_path) |
1519 | e739bd57 | Iustin Pop | else:
|
1520 | e51db2a6 | Iustin Pop | if not utils.IsNormAbsPath(rpath): |
1521 | e51db2a6 | Iustin Pop | _Fail("Strange path returned from StaticDevPath: '%s'", rpath)
|
1522 | e739bd57 | Iustin Pop | devs.append(rpath) |
1523 | e739bd57 | Iustin Pop | parent_bdev.RemoveChildren(devs) |
1524 | a8083063 | Iustin Pop | |
1525 | a8083063 | Iustin Pop | |
1526 | 821d1bd1 | Iustin Pop | def BlockdevGetmirrorstatus(disks): |
1527 | a8083063 | Iustin Pop | """Get the mirroring status of a list of devices.
|
1528 | a8083063 | Iustin Pop |
|
1529 | 10c2650b | Iustin Pop | @type disks: list of L{objects.Disk}
|
1530 | 10c2650b | Iustin Pop | @param disks: the list of disks which we should query
|
1531 | 10c2650b | Iustin Pop | @rtype: disk
|
1532 | 10c2650b | Iustin Pop | @return:
|
1533 | 10c2650b | Iustin Pop | a list of (mirror_done, estimated_time) tuples, which
|
1534 | c41eea6e | Iustin Pop | are the result of L{bdev.BlockDev.CombinedSyncStatus}
|
1535 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: if any of the disks cannot be
|
1536 | 10c2650b | Iustin Pop | found
|
1537 | a8083063 | Iustin Pop |
|
1538 | a8083063 | Iustin Pop | """
|
1539 | a8083063 | Iustin Pop | stats = [] |
1540 | a8083063 | Iustin Pop | for dsk in disks: |
1541 | a8083063 | Iustin Pop | rbd = _RecursiveFindBD(dsk) |
1542 | a8083063 | Iustin Pop | if rbd is None: |
1543 | 3efa9051 | Iustin Pop | _Fail("Can't find device %s", dsk)
|
1544 | 96acbc09 | Michael Hanselmann | |
1545 | 36145b12 | Michael Hanselmann | stats.append(rbd.CombinedSyncStatus()) |
1546 | 96acbc09 | Michael Hanselmann | |
1547 | c26a6bd2 | Iustin Pop | return stats
|
1548 | a8083063 | Iustin Pop | |
1549 | a8083063 | Iustin Pop | |
1550 | bca2e7f4 | Iustin Pop | def _RecursiveFindBD(disk): |
1551 | a8083063 | Iustin Pop | """Check if a device is activated.
|
1552 | a8083063 | Iustin Pop |
|
1553 | 5bbd3f7f | Michael Hanselmann | If so, return information about the real device.
|
1554 | a8083063 | Iustin Pop |
|
1555 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1556 | 10c2650b | Iustin Pop | @param disk: the disk object we need to find
|
1557 | a8083063 | Iustin Pop |
|
1558 | 10c2650b | Iustin Pop | @return: None if the device can't be found,
|
1559 | 10c2650b | Iustin Pop | otherwise the device instance
|
1560 | a8083063 | Iustin Pop |
|
1561 | a8083063 | Iustin Pop | """
|
1562 | a8083063 | Iustin Pop | children = [] |
1563 | a8083063 | Iustin Pop | if disk.children:
|
1564 | a8083063 | Iustin Pop | for chdisk in disk.children: |
1565 | a8083063 | Iustin Pop | children.append(_RecursiveFindBD(chdisk)) |
1566 | a8083063 | Iustin Pop | |
1567 | 464f8daf | Iustin Pop | return bdev.FindDevice(disk.dev_type, disk.physical_id, children, disk.size)
|
1568 | a8083063 | Iustin Pop | |
1569 | a8083063 | Iustin Pop | |
1570 | f2e07bb4 | Michael Hanselmann | def _OpenRealBD(disk): |
1571 | f2e07bb4 | Michael Hanselmann | """Opens the underlying block device of a disk.
|
1572 | f2e07bb4 | Michael Hanselmann |
|
1573 | f2e07bb4 | Michael Hanselmann | @type disk: L{objects.Disk}
|
1574 | f2e07bb4 | Michael Hanselmann | @param disk: the disk object we want to open
|
1575 | f2e07bb4 | Michael Hanselmann |
|
1576 | f2e07bb4 | Michael Hanselmann | """
|
1577 | f2e07bb4 | Michael Hanselmann | real_disk = _RecursiveFindBD(disk) |
1578 | f2e07bb4 | Michael Hanselmann | if real_disk is None: |
1579 | f2e07bb4 | Michael Hanselmann | _Fail("Block device '%s' is not set up", disk)
|
1580 | f2e07bb4 | Michael Hanselmann | |
1581 | f2e07bb4 | Michael Hanselmann | real_disk.Open() |
1582 | f2e07bb4 | Michael Hanselmann | |
1583 | f2e07bb4 | Michael Hanselmann | return real_disk
|
1584 | f2e07bb4 | Michael Hanselmann | |
1585 | f2e07bb4 | Michael Hanselmann | |
1586 | 821d1bd1 | Iustin Pop | def BlockdevFind(disk): |
1587 | a8083063 | Iustin Pop | """Check if a device is activated.
|
1588 | a8083063 | Iustin Pop |
|
1589 | 5bbd3f7f | Michael Hanselmann | If it is, return information about the real device.
|
1590 | a8083063 | Iustin Pop |
|
1591 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
1592 | 10c2650b | Iustin Pop | @param disk: the disk to find
|
1593 | 96acbc09 | Michael Hanselmann | @rtype: None or objects.BlockDevStatus
|
1594 | 96acbc09 | Michael Hanselmann | @return: None if the disk cannot be found, otherwise a the current
|
1595 | 96acbc09 | Michael Hanselmann | information
|
1596 | a8083063 | Iustin Pop |
|
1597 | a8083063 | Iustin Pop | """
|
1598 | 23829f6f | Iustin Pop | try:
|
1599 | 23829f6f | Iustin Pop | rbd = _RecursiveFindBD(disk) |
1600 | 23829f6f | Iustin Pop | except errors.BlockDeviceError, err:
|
1601 | 2cc6781a | Iustin Pop | _Fail("Failed to find device: %s", err, exc=True) |
1602 | 96acbc09 | Michael Hanselmann | |
1603 | a8083063 | Iustin Pop | if rbd is None: |
1604 | c26a6bd2 | Iustin Pop | return None |
1605 | 96acbc09 | Michael Hanselmann | |
1606 | 96acbc09 | Michael Hanselmann | return rbd.GetSyncStatus()
|
1607 | a8083063 | Iustin Pop | |
1608 | a8083063 | Iustin Pop | |
1609 | 968a7623 | Iustin Pop | def BlockdevGetsize(disks): |
1610 | 968a7623 | Iustin Pop | """Computes the size of the given disks.
|
1611 | 968a7623 | Iustin Pop |
|
1612 | 968a7623 | Iustin Pop | If a disk is not found, returns None instead.
|
1613 | 968a7623 | Iustin Pop |
|
1614 | 968a7623 | Iustin Pop | @type disks: list of L{objects.Disk}
|
1615 | 968a7623 | Iustin Pop | @param disks: the list of disk to compute the size for
|
1616 | 968a7623 | Iustin Pop | @rtype: list
|
1617 | 968a7623 | Iustin Pop | @return: list with elements None if the disk cannot be found,
|
1618 | 968a7623 | Iustin Pop | otherwise the size
|
1619 | 968a7623 | Iustin Pop |
|
1620 | 968a7623 | Iustin Pop | """
|
1621 | 968a7623 | Iustin Pop | result = [] |
1622 | 968a7623 | Iustin Pop | for cf in disks: |
1623 | 968a7623 | Iustin Pop | try:
|
1624 | 968a7623 | Iustin Pop | rbd = _RecursiveFindBD(cf) |
1625 | 1122eb25 | Iustin Pop | except errors.BlockDeviceError:
|
1626 | 968a7623 | Iustin Pop | result.append(None)
|
1627 | 968a7623 | Iustin Pop | continue
|
1628 | 968a7623 | Iustin Pop | if rbd is None: |
1629 | 968a7623 | Iustin Pop | result.append(None)
|
1630 | 968a7623 | Iustin Pop | else:
|
1631 | 968a7623 | Iustin Pop | result.append(rbd.GetActualSize()) |
1632 | 968a7623 | Iustin Pop | return result
|
1633 | 968a7623 | Iustin Pop | |
1634 | 968a7623 | Iustin Pop | |
1635 | 858f3d18 | Iustin Pop | def BlockdevExport(disk, dest_node, dest_path, cluster_name): |
1636 | 858f3d18 | Iustin Pop | """Export a block device to a remote node.
|
1637 | 858f3d18 | Iustin Pop |
|
1638 | 858f3d18 | Iustin Pop | @type disk: L{objects.Disk}
|
1639 | 858f3d18 | Iustin Pop | @param disk: the description of the disk to export
|
1640 | 858f3d18 | Iustin Pop | @type dest_node: str
|
1641 | 858f3d18 | Iustin Pop | @param dest_node: the destination node to export to
|
1642 | 858f3d18 | Iustin Pop | @type dest_path: str
|
1643 | 858f3d18 | Iustin Pop | @param dest_path: the destination path on the target node
|
1644 | 858f3d18 | Iustin Pop | @type cluster_name: str
|
1645 | 858f3d18 | Iustin Pop | @param cluster_name: the cluster name, needed for SSH hostalias
|
1646 | 858f3d18 | Iustin Pop | @rtype: None
|
1647 | 858f3d18 | Iustin Pop |
|
1648 | 858f3d18 | Iustin Pop | """
|
1649 | f2e07bb4 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
1650 | 858f3d18 | Iustin Pop | |
1651 | 858f3d18 | Iustin Pop | # the block size on the read dd is 1MiB to match our units
|
1652 | 858f3d18 | Iustin Pop | expcmd = utils.BuildShellCmd("set -e; set -o pipefail; "
|
1653 | 858f3d18 | Iustin Pop | "dd if=%s bs=1048576 count=%s",
|
1654 | 858f3d18 | Iustin Pop | real_disk.dev_path, str(disk.size))
|
1655 | 858f3d18 | Iustin Pop | |
1656 | 858f3d18 | Iustin Pop | # we set here a smaller block size as, due to ssh buffering, more
|
1657 | 858f3d18 | Iustin Pop | # than 64-128k will mostly ignored; we use nocreat to fail if the
|
1658 | 858f3d18 | Iustin Pop | # device is not already there or we pass a wrong path; we use
|
1659 | 858f3d18 | Iustin Pop | # notrunc to no attempt truncate on an LV device; we use oflag=dsync
|
1660 | 858f3d18 | Iustin Pop | # to not buffer too much memory; this means that at best, we flush
|
1661 | 858f3d18 | Iustin Pop | # every 64k, which will not be very fast
|
1662 | 858f3d18 | Iustin Pop | destcmd = utils.BuildShellCmd("dd of=%s conv=nocreat,notrunc bs=65536"
|
1663 | 858f3d18 | Iustin Pop | " oflag=dsync", dest_path)
|
1664 | 858f3d18 | Iustin Pop | |
1665 | 858f3d18 | Iustin Pop | remotecmd = _GetSshRunner(cluster_name).BuildCmd(dest_node, |
1666 | 858f3d18 | Iustin Pop | constants.GANETI_RUNAS, |
1667 | 858f3d18 | Iustin Pop | destcmd) |
1668 | 858f3d18 | Iustin Pop | |
1669 | 858f3d18 | Iustin Pop | # all commands have been checked, so we're safe to combine them
|
1670 | 858f3d18 | Iustin Pop | command = '|'.join([expcmd, utils.ShellQuoteArgs(remotecmd)])
|
1671 | 858f3d18 | Iustin Pop | |
1672 | 858f3d18 | Iustin Pop | result = utils.RunCmd(["bash", "-c", command]) |
1673 | 858f3d18 | Iustin Pop | |
1674 | 858f3d18 | Iustin Pop | if result.failed:
|
1675 | 858f3d18 | Iustin Pop | _Fail("Disk copy command '%s' returned error: %s"
|
1676 | 858f3d18 | Iustin Pop | " output: %s", command, result.fail_reason, result.output)
|
1677 | 858f3d18 | Iustin Pop | |
1678 | 858f3d18 | Iustin Pop | |
1679 | a8083063 | Iustin Pop | def UploadFile(file_name, data, mode, uid, gid, atime, mtime): |
1680 | a8083063 | Iustin Pop | """Write a file to the filesystem.
|
1681 | a8083063 | Iustin Pop |
|
1682 | a8083063 | Iustin Pop | This allows the master to overwrite(!) a file. It will only perform
|
1683 | a8083063 | Iustin Pop | the operation if the file belongs to a list of configuration files.
|
1684 | a8083063 | Iustin Pop |
|
1685 | 10c2650b | Iustin Pop | @type file_name: str
|
1686 | 10c2650b | Iustin Pop | @param file_name: the target file name
|
1687 | 10c2650b | Iustin Pop | @type data: str
|
1688 | 10c2650b | Iustin Pop | @param data: the new contents of the file
|
1689 | 10c2650b | Iustin Pop | @type mode: int
|
1690 | 10c2650b | Iustin Pop | @param mode: the mode to give the file (can be None)
|
1691 | 10c2650b | Iustin Pop | @type uid: int
|
1692 | 10c2650b | Iustin Pop | @param uid: the owner of the file (can be -1 for default)
|
1693 | 10c2650b | Iustin Pop | @type gid: int
|
1694 | 10c2650b | Iustin Pop | @param gid: the group of the file (can be -1 for default)
|
1695 | 10c2650b | Iustin Pop | @type atime: float
|
1696 | 10c2650b | Iustin Pop | @param atime: the atime to set on the file (can be None)
|
1697 | 10c2650b | Iustin Pop | @type mtime: float
|
1698 | 10c2650b | Iustin Pop | @param mtime: the mtime to set on the file (can be None)
|
1699 | c26a6bd2 | Iustin Pop | @rtype: None
|
1700 | 10c2650b | Iustin Pop |
|
1701 | a8083063 | Iustin Pop | """
|
1702 | a8083063 | Iustin Pop | if not os.path.isabs(file_name): |
1703 | 2cc6781a | Iustin Pop | _Fail("Filename passed to UploadFile is not absolute: '%s'", file_name)
|
1704 | a8083063 | Iustin Pop | |
1705 | 360b0dc2 | Iustin Pop | if file_name not in _ALLOWED_UPLOAD_FILES: |
1706 | 2cc6781a | Iustin Pop | _Fail("Filename passed to UploadFile not in allowed upload targets: '%s'",
|
1707 | 2cc6781a | Iustin Pop | file_name) |
1708 | a8083063 | Iustin Pop | |
1709 | 12bce260 | Michael Hanselmann | raw_data = _Decompress(data) |
1710 | 12bce260 | Michael Hanselmann | |
1711 | 12bce260 | Michael Hanselmann | utils.WriteFile(file_name, data=raw_data, mode=mode, uid=uid, gid=gid, |
1712 | 41a57aab | Michael Hanselmann | atime=atime, mtime=mtime) |
1713 | a8083063 | Iustin Pop | |
1714 | 386b57af | Iustin Pop | |
1715 | 03d1dba2 | Michael Hanselmann | def WriteSsconfFiles(values): |
1716 | 89b14f05 | Iustin Pop | """Update all ssconf files.
|
1717 | 89b14f05 | Iustin Pop |
|
1718 | 89b14f05 | Iustin Pop | Wrapper around the SimpleStore.WriteFiles.
|
1719 | 89b14f05 | Iustin Pop |
|
1720 | 89b14f05 | Iustin Pop | """
|
1721 | 89b14f05 | Iustin Pop | ssconf.SimpleStore().WriteFiles(values) |
1722 | 6ddc95ec | Michael Hanselmann | |
1723 | 6ddc95ec | Michael Hanselmann | |
1724 | a8083063 | Iustin Pop | def _ErrnoOrStr(err): |
1725 | a8083063 | Iustin Pop | """Format an EnvironmentError exception.
|
1726 | a8083063 | Iustin Pop |
|
1727 | 10c2650b | Iustin Pop | If the L{err} argument has an errno attribute, it will be looked up
|
1728 | 10c2650b | Iustin Pop | and converted into a textual C{E...} description. Otherwise the
|
1729 | 10c2650b | Iustin Pop | string representation of the error will be returned.
|
1730 | 10c2650b | Iustin Pop |
|
1731 | 10c2650b | Iustin Pop | @type err: L{EnvironmentError}
|
1732 | 10c2650b | Iustin Pop | @param err: the exception to format
|
1733 | a8083063 | Iustin Pop |
|
1734 | a8083063 | Iustin Pop | """
|
1735 | a8083063 | Iustin Pop | if hasattr(err, 'errno'): |
1736 | a8083063 | Iustin Pop | detail = errno.errorcode[err.errno] |
1737 | a8083063 | Iustin Pop | else:
|
1738 | a8083063 | Iustin Pop | detail = str(err)
|
1739 | a8083063 | Iustin Pop | return detail
|
1740 | a8083063 | Iustin Pop | |
1741 | 5d0fe286 | Iustin Pop | |
1742 | c19f9810 | Iustin Pop | def _OSOndiskAPIVersion(os_dir): |
1743 | 2f8598a5 | Alexander Schreiber | """Compute and return the API version of a given OS.
|
1744 | a8083063 | Iustin Pop |
|
1745 | c19f9810 | Iustin Pop | This function will try to read the API version of the OS residing in
|
1746 | c19f9810 | Iustin Pop | the 'os_dir' directory.
|
1747 | 7c3d51d4 | Guido Trotter |
|
1748 | 10c2650b | Iustin Pop | @type os_dir: str
|
1749 | c19f9810 | Iustin Pop | @param os_dir: the directory in which we should look for the OS
|
1750 | 8e70b181 | Iustin Pop | @rtype: tuple
|
1751 | 8e70b181 | Iustin Pop | @return: tuple (status, data) with status denoting the validity and
|
1752 | 8e70b181 | Iustin Pop | data holding either the vaid versions or an error message
|
1753 | a8083063 | Iustin Pop |
|
1754 | a8083063 | Iustin Pop | """
|
1755 | e02b9114 | Iustin Pop | api_file = utils.PathJoin(os_dir, constants.OS_API_FILE) |
1756 | a8083063 | Iustin Pop | |
1757 | a8083063 | Iustin Pop | try:
|
1758 | a8083063 | Iustin Pop | st = os.stat(api_file) |
1759 | a8083063 | Iustin Pop | except EnvironmentError, err: |
1760 | b6b45e0d | Guido Trotter | return False, ("Required file '%s' not found under path %s: %s" % |
1761 | b6b45e0d | Guido Trotter | (constants.OS_API_FILE, os_dir, _ErrnoOrStr(err))) |
1762 | a8083063 | Iustin Pop | |
1763 | a8083063 | Iustin Pop | if not stat.S_ISREG(stat.S_IFMT(st.st_mode)): |
1764 | b6b45e0d | Guido Trotter | return False, ("File '%s' in %s is not a regular file" % |
1765 | b6b45e0d | Guido Trotter | (constants.OS_API_FILE, os_dir)) |
1766 | a8083063 | Iustin Pop | |
1767 | a8083063 | Iustin Pop | try:
|
1768 | 3374afa9 | Guido Trotter | api_versions = utils.ReadFile(api_file).splitlines() |
1769 | a8083063 | Iustin Pop | except EnvironmentError, err: |
1770 | 255dcebd | Iustin Pop | return False, ("Error while reading the API version file at %s: %s" % |
1771 | 255dcebd | Iustin Pop | (api_file, _ErrnoOrStr(err))) |
1772 | a8083063 | Iustin Pop | |
1773 | a8083063 | Iustin Pop | try:
|
1774 | 63b9b186 | Guido Trotter | api_versions = [int(version.strip()) for version in api_versions] |
1775 | a8083063 | Iustin Pop | except (TypeError, ValueError), err: |
1776 | 255dcebd | Iustin Pop | return False, ("API version(s) can't be converted to integer: %s" % |
1777 | 255dcebd | Iustin Pop | str(err))
|
1778 | a8083063 | Iustin Pop | |
1779 | 255dcebd | Iustin Pop | return True, api_versions |
1780 | a8083063 | Iustin Pop | |
1781 | 386b57af | Iustin Pop | |
1782 | 7c3d51d4 | Guido Trotter | def DiagnoseOS(top_dirs=None): |
1783 | a8083063 | Iustin Pop | """Compute the validity for all OSes.
|
1784 | a8083063 | Iustin Pop |
|
1785 | 10c2650b | Iustin Pop | @type top_dirs: list
|
1786 | 10c2650b | Iustin Pop | @param top_dirs: the list of directories in which to
|
1787 | 10c2650b | Iustin Pop | search (if not given defaults to
|
1788 | 10c2650b | Iustin Pop | L{constants.OS_SEARCH_PATH})
|
1789 | 10c2650b | Iustin Pop | @rtype: list of L{objects.OS}
|
1790 | bad78e66 | Iustin Pop | @return: a list of tuples (name, path, status, diagnose, variants,
|
1791 | bad78e66 | Iustin Pop | parameters, api_version) for all (potential) OSes under all
|
1792 | bad78e66 | Iustin Pop | search paths, where:
|
1793 | 255dcebd | Iustin Pop | - name is the (potential) OS name
|
1794 | 255dcebd | Iustin Pop | - path is the full path to the OS
|
1795 | 255dcebd | Iustin Pop | - status True/False is the validity of the OS
|
1796 | 255dcebd | Iustin Pop | - diagnose is the error message for an invalid OS, otherwise empty
|
1797 | ba00557a | Guido Trotter | - variants is a list of supported OS variants, if any
|
1798 | c7d04a6b | Iustin Pop | - parameters is a list of (name, help) parameters, if any
|
1799 | bad78e66 | Iustin Pop | - api_version is a list of support OS API versions
|
1800 | a8083063 | Iustin Pop |
|
1801 | a8083063 | Iustin Pop | """
|
1802 | 7c3d51d4 | Guido Trotter | if top_dirs is None: |
1803 | 7c3d51d4 | Guido Trotter | top_dirs = constants.OS_SEARCH_PATH |
1804 | a8083063 | Iustin Pop | |
1805 | a8083063 | Iustin Pop | result = [] |
1806 | 65fe4693 | Iustin Pop | for dir_name in top_dirs: |
1807 | 65fe4693 | Iustin Pop | if os.path.isdir(dir_name):
|
1808 | 7c3d51d4 | Guido Trotter | try:
|
1809 | 65fe4693 | Iustin Pop | f_names = utils.ListVisibleFiles(dir_name) |
1810 | 7c3d51d4 | Guido Trotter | except EnvironmentError, err: |
1811 | 29921401 | Iustin Pop | logging.exception("Can't list the OS directory %s: %s", dir_name, err)
|
1812 | 7c3d51d4 | Guido Trotter | break
|
1813 | 7c3d51d4 | Guido Trotter | for name in f_names: |
1814 | e02b9114 | Iustin Pop | os_path = utils.PathJoin(dir_name, name) |
1815 | 255dcebd | Iustin Pop | status, os_inst = _TryOSFromDisk(name, base_dir=dir_name) |
1816 | 255dcebd | Iustin Pop | if status:
|
1817 | 255dcebd | Iustin Pop | diagnose = ""
|
1818 | ba00557a | Guido Trotter | variants = os_inst.supported_variants |
1819 | c7d04a6b | Iustin Pop | parameters = os_inst.supported_parameters |
1820 | bad78e66 | Iustin Pop | api_versions = os_inst.api_versions |
1821 | 255dcebd | Iustin Pop | else:
|
1822 | 255dcebd | Iustin Pop | diagnose = os_inst |
1823 | bad78e66 | Iustin Pop | variants = parameters = api_versions = [] |
1824 | bad78e66 | Iustin Pop | result.append((name, os_path, status, diagnose, variants, |
1825 | bad78e66 | Iustin Pop | parameters, api_versions)) |
1826 | a8083063 | Iustin Pop | |
1827 | c26a6bd2 | Iustin Pop | return result
|
1828 | a8083063 | Iustin Pop | |
1829 | a8083063 | Iustin Pop | |
1830 | 255dcebd | Iustin Pop | def _TryOSFromDisk(name, base_dir=None): |
1831 | a8083063 | Iustin Pop | """Create an OS instance from disk.
|
1832 | a8083063 | Iustin Pop |
|
1833 | a8083063 | Iustin Pop | This function will return an OS instance if the given name is a
|
1834 | 8e70b181 | Iustin Pop | valid OS name.
|
1835 | a8083063 | Iustin Pop |
|
1836 | 8ee4dc80 | Guido Trotter | @type base_dir: string
|
1837 | 8ee4dc80 | Guido Trotter | @keyword base_dir: Base directory containing OS installations.
|
1838 | 8ee4dc80 | Guido Trotter | Defaults to a search in all the OS_SEARCH_PATH dirs.
|
1839 | 255dcebd | Iustin Pop | @rtype: tuple
|
1840 | 255dcebd | Iustin Pop | @return: success and either the OS instance if we find a valid one,
|
1841 | 255dcebd | Iustin Pop | or error message
|
1842 | 7c3d51d4 | Guido Trotter |
|
1843 | a8083063 | Iustin Pop | """
|
1844 | 56bcd3f4 | Guido Trotter | if base_dir is None: |
1845 | 57c177af | Iustin Pop | os_dir = utils.FindFile(name, constants.OS_SEARCH_PATH, os.path.isdir) |
1846 | c34c0cfd | Iustin Pop | else:
|
1847 | f95c81bf | Iustin Pop | os_dir = utils.FindFile(name, [base_dir], os.path.isdir) |
1848 | f95c81bf | Iustin Pop | |
1849 | f95c81bf | Iustin Pop | if os_dir is None: |
1850 | 5c0433d6 | Iustin Pop | return False, "Directory for OS %s not found in search path" % name |
1851 | a8083063 | Iustin Pop | |
1852 | c19f9810 | Iustin Pop | status, api_versions = _OSOndiskAPIVersion(os_dir) |
1853 | 255dcebd | Iustin Pop | if not status: |
1854 | 255dcebd | Iustin Pop | # push the error up
|
1855 | 255dcebd | Iustin Pop | return status, api_versions
|
1856 | a8083063 | Iustin Pop | |
1857 | d1a7d66f | Guido Trotter | if not constants.OS_API_VERSIONS.intersection(api_versions): |
1858 | 255dcebd | Iustin Pop | return False, ("API version mismatch for path '%s': found %s, want %s." % |
1859 | d1a7d66f | Guido Trotter | (os_dir, api_versions, constants.OS_API_VERSIONS)) |
1860 | a8083063 | Iustin Pop | |
1861 | 41ba4061 | Guido Trotter | # OS Files dictionary, we will populate it with the absolute path names
|
1862 | 41ba4061 | Guido Trotter | os_files = dict.fromkeys(constants.OS_SCRIPTS)
|
1863 | a8083063 | Iustin Pop | |
1864 | 95075fba | Guido Trotter | if max(api_versions) >= constants.OS_API_V15: |
1865 | 95075fba | Guido Trotter | os_files[constants.OS_VARIANTS_FILE] = ''
|
1866 | 95075fba | Guido Trotter | |
1867 | c7d04a6b | Iustin Pop | if max(api_versions) >= constants.OS_API_V20: |
1868 | c7d04a6b | Iustin Pop | os_files[constants.OS_PARAMETERS_FILE] = ''
|
1869 | c7d04a6b | Iustin Pop | else:
|
1870 | c7d04a6b | Iustin Pop | del os_files[constants.OS_SCRIPT_VERIFY]
|
1871 | c7d04a6b | Iustin Pop | |
1872 | ea79fc15 | Michael Hanselmann | for filename in os_files: |
1873 | e02b9114 | Iustin Pop | os_files[filename] = utils.PathJoin(os_dir, filename) |
1874 | a8083063 | Iustin Pop | |
1875 | a8083063 | Iustin Pop | try:
|
1876 | ea79fc15 | Michael Hanselmann | st = os.stat(os_files[filename]) |
1877 | a8083063 | Iustin Pop | except EnvironmentError, err: |
1878 | 41ba4061 | Guido Trotter | return False, ("File '%s' under path '%s' is missing (%s)" % |
1879 | ea79fc15 | Michael Hanselmann | (filename, os_dir, _ErrnoOrStr(err))) |
1880 | a8083063 | Iustin Pop | |
1881 | a8083063 | Iustin Pop | if not stat.S_ISREG(stat.S_IFMT(st.st_mode)): |
1882 | 41ba4061 | Guido Trotter | return False, ("File '%s' under path '%s' is not a regular file" % |
1883 | ea79fc15 | Michael Hanselmann | (filename, os_dir)) |
1884 | 255dcebd | Iustin Pop | |
1885 | ea79fc15 | Michael Hanselmann | if filename in constants.OS_SCRIPTS: |
1886 | 0757c107 | Guido Trotter | if stat.S_IMODE(st.st_mode) & stat.S_IXUSR != stat.S_IXUSR:
|
1887 | 0757c107 | Guido Trotter | return False, ("File '%s' under path '%s' is not executable" % |
1888 | ea79fc15 | Michael Hanselmann | (filename, os_dir)) |
1889 | 0757c107 | Guido Trotter | |
1890 | 845da3e8 | Iustin Pop | variants = [] |
1891 | 95075fba | Guido Trotter | if constants.OS_VARIANTS_FILE in os_files: |
1892 | 95075fba | Guido Trotter | variants_file = os_files[constants.OS_VARIANTS_FILE] |
1893 | 95075fba | Guido Trotter | try:
|
1894 | 95075fba | Guido Trotter | variants = utils.ReadFile(variants_file).splitlines() |
1895 | 95075fba | Guido Trotter | except EnvironmentError, err: |
1896 | 95075fba | Guido Trotter | return False, ("Error while reading the OS variants file at %s: %s" % |
1897 | 95075fba | Guido Trotter | (variants_file, _ErrnoOrStr(err))) |
1898 | 95075fba | Guido Trotter | if not variants: |
1899 | 95075fba | Guido Trotter | return False, ("No supported os variant found") |
1900 | 0757c107 | Guido Trotter | |
1901 | c7d04a6b | Iustin Pop | parameters = [] |
1902 | c7d04a6b | Iustin Pop | if constants.OS_PARAMETERS_FILE in os_files: |
1903 | c7d04a6b | Iustin Pop | parameters_file = os_files[constants.OS_PARAMETERS_FILE] |
1904 | c7d04a6b | Iustin Pop | try:
|
1905 | c7d04a6b | Iustin Pop | parameters = utils.ReadFile(parameters_file).splitlines() |
1906 | c7d04a6b | Iustin Pop | except EnvironmentError, err: |
1907 | c7d04a6b | Iustin Pop | return False, ("Error while reading the OS parameters file at %s: %s" % |
1908 | c7d04a6b | Iustin Pop | (parameters_file, _ErrnoOrStr(err))) |
1909 | c7d04a6b | Iustin Pop | parameters = [v.split(None, 1) for v in parameters] |
1910 | c7d04a6b | Iustin Pop | |
1911 | 8e70b181 | Iustin Pop | os_obj = objects.OS(name=name, path=os_dir, |
1912 | 41ba4061 | Guido Trotter | create_script=os_files[constants.OS_SCRIPT_CREATE], |
1913 | 41ba4061 | Guido Trotter | export_script=os_files[constants.OS_SCRIPT_EXPORT], |
1914 | 41ba4061 | Guido Trotter | import_script=os_files[constants.OS_SCRIPT_IMPORT], |
1915 | 41ba4061 | Guido Trotter | rename_script=os_files[constants.OS_SCRIPT_RENAME], |
1916 | 40684c3a | Iustin Pop | verify_script=os_files.get(constants.OS_SCRIPT_VERIFY, |
1917 | 40684c3a | Iustin Pop | None),
|
1918 | 95075fba | Guido Trotter | supported_variants=variants, |
1919 | c7d04a6b | Iustin Pop | supported_parameters=parameters, |
1920 | 255dcebd | Iustin Pop | api_versions=api_versions) |
1921 | 255dcebd | Iustin Pop | return True, os_obj |
1922 | 255dcebd | Iustin Pop | |
1923 | 255dcebd | Iustin Pop | |
1924 | 255dcebd | Iustin Pop | def OSFromDisk(name, base_dir=None): |
1925 | 255dcebd | Iustin Pop | """Create an OS instance from disk.
|
1926 | 255dcebd | Iustin Pop |
|
1927 | 255dcebd | Iustin Pop | This function will return an OS instance if the given name is a
|
1928 | 255dcebd | Iustin Pop | valid OS name. Otherwise, it will raise an appropriate
|
1929 | 255dcebd | Iustin Pop | L{RPCFail} exception, detailing why this is not a valid OS.
|
1930 | 255dcebd | Iustin Pop |
|
1931 | 255dcebd | Iustin Pop | This is just a wrapper over L{_TryOSFromDisk}, which doesn't raise
|
1932 | 255dcebd | Iustin Pop | an exception but returns true/false status data.
|
1933 | 255dcebd | Iustin Pop |
|
1934 | 255dcebd | Iustin Pop | @type base_dir: string
|
1935 | 255dcebd | Iustin Pop | @keyword base_dir: Base directory containing OS installations.
|
1936 | 255dcebd | Iustin Pop | Defaults to a search in all the OS_SEARCH_PATH dirs.
|
1937 | 255dcebd | Iustin Pop | @rtype: L{objects.OS}
|
1938 | 255dcebd | Iustin Pop | @return: the OS instance if we find a valid one
|
1939 | 255dcebd | Iustin Pop | @raise RPCFail: if we don't find a valid OS
|
1940 | 255dcebd | Iustin Pop |
|
1941 | 255dcebd | Iustin Pop | """
|
1942 | 69b99987 | Michael Hanselmann | name_only = name.split("+", 1)[0] |
1943 | 6ee7102a | Guido Trotter | status, payload = _TryOSFromDisk(name_only, base_dir) |
1944 | 255dcebd | Iustin Pop | |
1945 | 255dcebd | Iustin Pop | if not status: |
1946 | 255dcebd | Iustin Pop | _Fail(payload) |
1947 | a8083063 | Iustin Pop | |
1948 | 255dcebd | Iustin Pop | return payload
|
1949 | a8083063 | Iustin Pop | |
1950 | a8083063 | Iustin Pop | |
1951 | 1bdcbbab | Iustin Pop | def OSCoreEnv(inst_os, os_params, debug=0): |
1952 | efaa9b06 | Iustin Pop | """Calculate the basic environment for an os script.
|
1953 | 2266edb2 | Guido Trotter |
|
1954 | 099c52ad | Iustin Pop | @type inst_os: L{objects.OS}
|
1955 | 099c52ad | Iustin Pop | @param inst_os: operating system for which the environment is being built
|
1956 | 1bdcbbab | Iustin Pop | @type os_params: dict
|
1957 | 1bdcbbab | Iustin Pop | @param os_params: the OS parameters
|
1958 | 2266edb2 | Guido Trotter | @type debug: integer
|
1959 | 10c2650b | Iustin Pop | @param debug: debug level (0 or 1, for OS Api 10)
|
1960 | 2266edb2 | Guido Trotter | @rtype: dict
|
1961 | 2266edb2 | Guido Trotter | @return: dict of environment variables
|
1962 | 10c2650b | Iustin Pop | @raise errors.BlockDeviceError: if the block device
|
1963 | 10c2650b | Iustin Pop | cannot be found
|
1964 | 2266edb2 | Guido Trotter |
|
1965 | 2266edb2 | Guido Trotter | """
|
1966 | 2266edb2 | Guido Trotter | result = {} |
1967 | 099c52ad | Iustin Pop | api_version = \ |
1968 | 099c52ad | Iustin Pop | max(constants.OS_API_VERSIONS.intersection(inst_os.api_versions))
|
1969 | d1a7d66f | Guido Trotter | result['OS_API_VERSION'] = '%d' % api_version |
1970 | efaa9b06 | Iustin Pop | result['OS_NAME'] = inst_os.name
|
1971 | 2266edb2 | Guido Trotter | result['DEBUG_LEVEL'] = '%d' % debug |
1972 | efaa9b06 | Iustin Pop | |
1973 | efaa9b06 | Iustin Pop | # OS variants
|
1974 | f11280b5 | Guido Trotter | if api_version >= constants.OS_API_V15:
|
1975 | f11280b5 | Guido Trotter | try:
|
1976 | efaa9b06 | Iustin Pop | variant = inst_os.name.split('+', 1)[1] |
1977 | f11280b5 | Guido Trotter | except IndexError: |
1978 | 099c52ad | Iustin Pop | variant = inst_os.supported_variants[0]
|
1979 | f11280b5 | Guido Trotter | result['OS_VARIANT'] = variant
|
1980 | efaa9b06 | Iustin Pop | |
1981 | 1bdcbbab | Iustin Pop | # OS params
|
1982 | 1bdcbbab | Iustin Pop | for pname, pvalue in os_params.items(): |
1983 | 1bdcbbab | Iustin Pop | result['OSP_%s' % pname.upper()] = pvalue
|
1984 | 1bdcbbab | Iustin Pop | |
1985 | efaa9b06 | Iustin Pop | return result
|
1986 | efaa9b06 | Iustin Pop | |
1987 | efaa9b06 | Iustin Pop | |
1988 | efaa9b06 | Iustin Pop | def OSEnvironment(instance, inst_os, debug=0): |
1989 | efaa9b06 | Iustin Pop | """Calculate the environment for an os script.
|
1990 | efaa9b06 | Iustin Pop |
|
1991 | efaa9b06 | Iustin Pop | @type instance: L{objects.Instance}
|
1992 | efaa9b06 | Iustin Pop | @param instance: target instance for the os script run
|
1993 | efaa9b06 | Iustin Pop | @type inst_os: L{objects.OS}
|
1994 | efaa9b06 | Iustin Pop | @param inst_os: operating system for which the environment is being built
|
1995 | efaa9b06 | Iustin Pop | @type debug: integer
|
1996 | efaa9b06 | Iustin Pop | @param debug: debug level (0 or 1, for OS Api 10)
|
1997 | efaa9b06 | Iustin Pop | @rtype: dict
|
1998 | efaa9b06 | Iustin Pop | @return: dict of environment variables
|
1999 | efaa9b06 | Iustin Pop | @raise errors.BlockDeviceError: if the block device
|
2000 | efaa9b06 | Iustin Pop | cannot be found
|
2001 | efaa9b06 | Iustin Pop |
|
2002 | efaa9b06 | Iustin Pop | """
|
2003 | 1bdcbbab | Iustin Pop | result = OSCoreEnv(inst_os, instance.osparams, debug=debug) |
2004 | efaa9b06 | Iustin Pop | |
2005 | efaa9b06 | Iustin Pop | result['INSTANCE_NAME'] = instance.name
|
2006 | efaa9b06 | Iustin Pop | result['INSTANCE_OS'] = instance.os
|
2007 | efaa9b06 | Iustin Pop | result['HYPERVISOR'] = instance.hypervisor
|
2008 | efaa9b06 | Iustin Pop | result['DISK_COUNT'] = '%d' % len(instance.disks) |
2009 | efaa9b06 | Iustin Pop | result['NIC_COUNT'] = '%d' % len(instance.nics) |
2010 | efaa9b06 | Iustin Pop | |
2011 | efaa9b06 | Iustin Pop | # Disks
|
2012 | 2266edb2 | Guido Trotter | for idx, disk in enumerate(instance.disks): |
2013 | f2e07bb4 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2014 | 2266edb2 | Guido Trotter | result['DISK_%d_PATH' % idx] = real_disk.dev_path
|
2015 | 15552312 | Iustin Pop | result['DISK_%d_ACCESS' % idx] = disk.mode
|
2016 | 2266edb2 | Guido Trotter | if constants.HV_DISK_TYPE in instance.hvparams: |
2017 | 2266edb2 | Guido Trotter | result['DISK_%d_FRONTEND_TYPE' % idx] = \
|
2018 | 2266edb2 | Guido Trotter | instance.hvparams[constants.HV_DISK_TYPE] |
2019 | 2266edb2 | Guido Trotter | if disk.dev_type in constants.LDS_BLOCK: |
2020 | 2266edb2 | Guido Trotter | result['DISK_%d_BACKEND_TYPE' % idx] = 'block' |
2021 | 2266edb2 | Guido Trotter | elif disk.dev_type == constants.LD_FILE:
|
2022 | 2266edb2 | Guido Trotter | result['DISK_%d_BACKEND_TYPE' % idx] = \
|
2023 | 2266edb2 | Guido Trotter | 'file:%s' % disk.physical_id[0] |
2024 | efaa9b06 | Iustin Pop | |
2025 | efaa9b06 | Iustin Pop | # NICs
|
2026 | 2266edb2 | Guido Trotter | for idx, nic in enumerate(instance.nics): |
2027 | 2266edb2 | Guido Trotter | result['NIC_%d_MAC' % idx] = nic.mac
|
2028 | 2266edb2 | Guido Trotter | if nic.ip:
|
2029 | 2266edb2 | Guido Trotter | result['NIC_%d_IP' % idx] = nic.ip
|
2030 | 1ba9227f | Guido Trotter | result['NIC_%d_MODE' % idx] = nic.nicparams[constants.NIC_MODE]
|
2031 | 1ba9227f | Guido Trotter | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
2032 | 1ba9227f | Guido Trotter | result['NIC_%d_BRIDGE' % idx] = nic.nicparams[constants.NIC_LINK]
|
2033 | 1ba9227f | Guido Trotter | if nic.nicparams[constants.NIC_LINK]:
|
2034 | 1ba9227f | Guido Trotter | result['NIC_%d_LINK' % idx] = nic.nicparams[constants.NIC_LINK]
|
2035 | 2266edb2 | Guido Trotter | if constants.HV_NIC_TYPE in instance.hvparams: |
2036 | 2266edb2 | Guido Trotter | result['NIC_%d_FRONTEND_TYPE' % idx] = \
|
2037 | 2266edb2 | Guido Trotter | instance.hvparams[constants.HV_NIC_TYPE] |
2038 | 2266edb2 | Guido Trotter | |
2039 | efaa9b06 | Iustin Pop | # HV/BE params
|
2040 | 67fc3042 | Iustin Pop | for source, kind in [(instance.beparams, "BE"), (instance.hvparams, "HV")]: |
2041 | 67fc3042 | Iustin Pop | for key, value in source.items(): |
2042 | 030b218a | Iustin Pop | result["INSTANCE_%s_%s" % (kind, key)] = str(value) |
2043 | 67fc3042 | Iustin Pop | |
2044 | 2266edb2 | Guido Trotter | return result
|
2045 | a8083063 | Iustin Pop | |
2046 | f2e07bb4 | Michael Hanselmann | |
2047 | 821d1bd1 | Iustin Pop | def BlockdevGrow(disk, amount): |
2048 | 594609c0 | Iustin Pop | """Grow a stack of block devices.
|
2049 | 594609c0 | Iustin Pop |
|
2050 | 594609c0 | Iustin Pop | This function is called recursively, with the childrens being the
|
2051 | 10c2650b | Iustin Pop | first ones to resize.
|
2052 | 594609c0 | Iustin Pop |
|
2053 | 10c2650b | Iustin Pop | @type disk: L{objects.Disk}
|
2054 | 10c2650b | Iustin Pop | @param disk: the disk to be grown
|
2055 | 10c2650b | Iustin Pop | @rtype: (status, result)
|
2056 | 10c2650b | Iustin Pop | @return: a tuple with the status of the operation
|
2057 | 10c2650b | Iustin Pop | (True/False), and the errors message if status
|
2058 | 10c2650b | Iustin Pop | is False
|
2059 | 594609c0 | Iustin Pop |
|
2060 | 594609c0 | Iustin Pop | """
|
2061 | 594609c0 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
2062 | 594609c0 | Iustin Pop | if r_dev is None: |
2063 | afdc3985 | Iustin Pop | _Fail("Cannot find block device %s", disk)
|
2064 | 594609c0 | Iustin Pop | |
2065 | 594609c0 | Iustin Pop | try:
|
2066 | 594609c0 | Iustin Pop | r_dev.Grow(amount) |
2067 | 594609c0 | Iustin Pop | except errors.BlockDeviceError, err:
|
2068 | 2cc6781a | Iustin Pop | _Fail("Failed to grow block device: %s", err, exc=True) |
2069 | 594609c0 | Iustin Pop | |
2070 | 594609c0 | Iustin Pop | |
2071 | 821d1bd1 | Iustin Pop | def BlockdevSnapshot(disk): |
2072 | a8083063 | Iustin Pop | """Create a snapshot copy of a block device.
|
2073 | a8083063 | Iustin Pop |
|
2074 | a8083063 | Iustin Pop | This function is called recursively, and the snapshot is actually created
|
2075 | a8083063 | Iustin Pop | just for the leaf lvm backend device.
|
2076 | a8083063 | Iustin Pop |
|
2077 | e9e9263d | Guido Trotter | @type disk: L{objects.Disk}
|
2078 | e9e9263d | Guido Trotter | @param disk: the disk to be snapshotted
|
2079 | e9e9263d | Guido Trotter | @rtype: string
|
2080 | e9e9263d | Guido Trotter | @return: snapshot disk path
|
2081 | a8083063 | Iustin Pop |
|
2082 | 098c0958 | Michael Hanselmann | """
|
2083 | 433c63aa | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
2084 | 433c63aa | Iustin Pop | if not disk.children: |
2085 | 433c63aa | Iustin Pop | _Fail("DRBD device '%s' without backing storage cannot be snapshotted",
|
2086 | 433c63aa | Iustin Pop | disk.unique_id) |
2087 | 433c63aa | Iustin Pop | return BlockdevSnapshot(disk.children[0]) |
2088 | fe96220b | Iustin Pop | elif disk.dev_type == constants.LD_LV:
|
2089 | a8083063 | Iustin Pop | r_dev = _RecursiveFindBD(disk) |
2090 | a8083063 | Iustin Pop | if r_dev is not None: |
2091 | 433c63aa | Iustin Pop | # FIXME: choose a saner value for the snapshot size
|
2092 | a8083063 | Iustin Pop | # let's stay on the safe side and ask for the full size, for now
|
2093 | c26a6bd2 | Iustin Pop | return r_dev.Snapshot(disk.size)
|
2094 | a8083063 | Iustin Pop | else:
|
2095 | 87812fd3 | Iustin Pop | _Fail("Cannot find block device %s", disk)
|
2096 | a8083063 | Iustin Pop | else:
|
2097 | 87812fd3 | Iustin Pop | _Fail("Cannot snapshot non-lvm block device '%s' of type '%s'",
|
2098 | 87812fd3 | Iustin Pop | disk.unique_id, disk.dev_type) |
2099 | a8083063 | Iustin Pop | |
2100 | a8083063 | Iustin Pop | |
2101 | a8083063 | Iustin Pop | def FinalizeExport(instance, snap_disks): |
2102 | a8083063 | Iustin Pop | """Write out the export configuration information.
|
2103 | a8083063 | Iustin Pop |
|
2104 | 10c2650b | Iustin Pop | @type instance: L{objects.Instance}
|
2105 | 10c2650b | Iustin Pop | @param instance: the instance which we export, used for
|
2106 | 10c2650b | Iustin Pop | saving configuration
|
2107 | 10c2650b | Iustin Pop | @type snap_disks: list of L{objects.Disk}
|
2108 | 10c2650b | Iustin Pop | @param snap_disks: list of snapshot block devices, which
|
2109 | 10c2650b | Iustin Pop | will be used to get the actual name of the dump file
|
2110 | a8083063 | Iustin Pop |
|
2111 | c26a6bd2 | Iustin Pop | @rtype: None
|
2112 | a8083063 | Iustin Pop |
|
2113 | 098c0958 | Michael Hanselmann | """
|
2114 | c4feafe8 | Iustin Pop | destdir = utils.PathJoin(constants.EXPORT_DIR, instance.name + ".new")
|
2115 | c4feafe8 | Iustin Pop | finaldestdir = utils.PathJoin(constants.EXPORT_DIR, instance.name) |
2116 | a8083063 | Iustin Pop | |
2117 | a8083063 | Iustin Pop | config = objects.SerializableConfigParser() |
2118 | a8083063 | Iustin Pop | |
2119 | a8083063 | Iustin Pop | config.add_section(constants.INISECT_EXP) |
2120 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'version', '0') |
2121 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'timestamp', '%d' % int(time.time())) |
2122 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'source', instance.primary_node)
|
2123 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'os', instance.os)
|
2124 | a8083063 | Iustin Pop | config.set(constants.INISECT_EXP, 'compression', 'gzip') |
2125 | a8083063 | Iustin Pop | |
2126 | a8083063 | Iustin Pop | config.add_section(constants.INISECT_INS) |
2127 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'name', instance.name)
|
2128 | 51de46bf | Iustin Pop | config.set(constants.INISECT_INS, 'memory', '%d' % |
2129 | 51de46bf | Iustin Pop | instance.beparams[constants.BE_MEMORY]) |
2130 | 51de46bf | Iustin Pop | config.set(constants.INISECT_INS, 'vcpus', '%d' % |
2131 | 51de46bf | Iustin Pop | instance.beparams[constants.BE_VCPUS]) |
2132 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'disk_template', instance.disk_template)
|
2133 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_INS, 'hypervisor', instance.hypervisor)
|
2134 | 66f93869 | Manuel Franceschini | |
2135 | 95268cc3 | Iustin Pop | nic_total = 0
|
2136 | a8083063 | Iustin Pop | for nic_count, nic in enumerate(instance.nics): |
2137 | 95268cc3 | Iustin Pop | nic_total += 1
|
2138 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'nic%d_mac' %
|
2139 | a8083063 | Iustin Pop | nic_count, '%s' % nic.mac)
|
2140 | a8083063 | Iustin Pop | config.set(constants.INISECT_INS, 'nic%d_ip' % nic_count, '%s' % nic.ip) |
2141 | 6801eb5c | Iustin Pop | for param in constants.NICS_PARAMETER_TYPES: |
2142 | 6801eb5c | Iustin Pop | config.set(constants.INISECT_INS, 'nic%d_%s' % (nic_count, param),
|
2143 | 6801eb5c | Iustin Pop | '%s' % nic.nicparams.get(param, None)) |
2144 | a8083063 | Iustin Pop | # TODO: redundant: on load can read nics until it doesn't exist
|
2145 | 95268cc3 | Iustin Pop | config.set(constants.INISECT_INS, 'nic_count' , '%d' % nic_total) |
2146 | a8083063 | Iustin Pop | |
2147 | 726d7d68 | Iustin Pop | disk_total = 0
|
2148 | a8083063 | Iustin Pop | for disk_count, disk in enumerate(snap_disks): |
2149 | 19d7f90a | Guido Trotter | if disk:
|
2150 | 726d7d68 | Iustin Pop | disk_total += 1
|
2151 | 19d7f90a | Guido Trotter | config.set(constants.INISECT_INS, 'disk%d_ivname' % disk_count,
|
2152 | 19d7f90a | Guido Trotter | ('%s' % disk.iv_name))
|
2153 | 19d7f90a | Guido Trotter | config.set(constants.INISECT_INS, 'disk%d_dump' % disk_count,
|
2154 | 19d7f90a | Guido Trotter | ('%s' % disk.physical_id[1])) |
2155 | 19d7f90a | Guido Trotter | config.set(constants.INISECT_INS, 'disk%d_size' % disk_count,
|
2156 | 19d7f90a | Guido Trotter | ('%d' % disk.size))
|
2157 | a8083063 | Iustin Pop | |
2158 | 726d7d68 | Iustin Pop | config.set(constants.INISECT_INS, 'disk_count' , '%d' % disk_total) |
2159 | a8083063 | Iustin Pop | |
2160 | 3c8954ad | Iustin Pop | # New-style hypervisor/backend parameters
|
2161 | 3c8954ad | Iustin Pop | |
2162 | 3c8954ad | Iustin Pop | config.add_section(constants.INISECT_HYP) |
2163 | 3c8954ad | Iustin Pop | for name, value in instance.hvparams.items(): |
2164 | 3c8954ad | Iustin Pop | if name not in constants.HVC_GLOBALS: |
2165 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_HYP, name, str(value))
|
2166 | 3c8954ad | Iustin Pop | |
2167 | 3c8954ad | Iustin Pop | config.add_section(constants.INISECT_BEP) |
2168 | 3c8954ad | Iustin Pop | for name, value in instance.beparams.items(): |
2169 | 3c8954ad | Iustin Pop | config.set(constants.INISECT_BEP, name, str(value))
|
2170 | 3c8954ad | Iustin Pop | |
2171 | 535b49cb | Iustin Pop | config.add_section(constants.INISECT_OSP) |
2172 | 535b49cb | Iustin Pop | for name, value in instance.osparams.items(): |
2173 | 535b49cb | Iustin Pop | config.set(constants.INISECT_OSP, name, str(value))
|
2174 | 535b49cb | Iustin Pop | |
2175 | c4feafe8 | Iustin Pop | utils.WriteFile(utils.PathJoin(destdir, constants.EXPORT_CONF_FILE), |
2176 | 726d7d68 | Iustin Pop | data=config.Dumps()) |
2177 | 56569f4e | Michael Hanselmann | shutil.rmtree(finaldestdir, ignore_errors=True)
|
2178 | a8083063 | Iustin Pop | shutil.move(destdir, finaldestdir) |
2179 | a8083063 | Iustin Pop | |
2180 | a8083063 | Iustin Pop | |
2181 | a8083063 | Iustin Pop | def ExportInfo(dest): |
2182 | a8083063 | Iustin Pop | """Get export configuration information.
|
2183 | a8083063 | Iustin Pop |
|
2184 | 10c2650b | Iustin Pop | @type dest: str
|
2185 | 10c2650b | Iustin Pop | @param dest: directory containing the export
|
2186 | a8083063 | Iustin Pop |
|
2187 | 10c2650b | Iustin Pop | @rtype: L{objects.SerializableConfigParser}
|
2188 | 10c2650b | Iustin Pop | @return: a serializable config file containing the
|
2189 | 10c2650b | Iustin Pop | export info
|
2190 | a8083063 | Iustin Pop |
|
2191 | a8083063 | Iustin Pop | """
|
2192 | c4feafe8 | Iustin Pop | cff = utils.PathJoin(dest, constants.EXPORT_CONF_FILE) |
2193 | a8083063 | Iustin Pop | |
2194 | a8083063 | Iustin Pop | config = objects.SerializableConfigParser() |
2195 | a8083063 | Iustin Pop | config.read(cff) |
2196 | a8083063 | Iustin Pop | |
2197 | a8083063 | Iustin Pop | if (not config.has_section(constants.INISECT_EXP) or |
2198 | a8083063 | Iustin Pop | not config.has_section(constants.INISECT_INS)):
|
2199 | 3eccac06 | Iustin Pop | _Fail("Export info file doesn't have the required fields")
|
2200 | a8083063 | Iustin Pop | |
2201 | c26a6bd2 | Iustin Pop | return config.Dumps()
|
2202 | a8083063 | Iustin Pop | |
2203 | a8083063 | Iustin Pop | |
2204 | a8083063 | Iustin Pop | def ListExports(): |
2205 | a8083063 | Iustin Pop | """Return a list of exports currently available on this machine.
|
2206 | 098c0958 | Michael Hanselmann |
|
2207 | 10c2650b | Iustin Pop | @rtype: list
|
2208 | 10c2650b | Iustin Pop | @return: list of the exports
|
2209 | 10c2650b | Iustin Pop |
|
2210 | a8083063 | Iustin Pop | """
|
2211 | a8083063 | Iustin Pop | if os.path.isdir(constants.EXPORT_DIR):
|
2212 | b5b8309d | Guido Trotter | return sorted(utils.ListVisibleFiles(constants.EXPORT_DIR)) |
2213 | a8083063 | Iustin Pop | else:
|
2214 | afdc3985 | Iustin Pop | _Fail("No exports directory")
|
2215 | a8083063 | Iustin Pop | |
2216 | a8083063 | Iustin Pop | |
2217 | a8083063 | Iustin Pop | def RemoveExport(export): |
2218 | a8083063 | Iustin Pop | """Remove an existing export from the node.
|
2219 | a8083063 | Iustin Pop |
|
2220 | 10c2650b | Iustin Pop | @type export: str
|
2221 | 10c2650b | Iustin Pop | @param export: the name of the export to remove
|
2222 | c26a6bd2 | Iustin Pop | @rtype: None
|
2223 | a8083063 | Iustin Pop |
|
2224 | 098c0958 | Michael Hanselmann | """
|
2225 | c4feafe8 | Iustin Pop | target = utils.PathJoin(constants.EXPORT_DIR, export) |
2226 | a8083063 | Iustin Pop | |
2227 | 35fbcd11 | Iustin Pop | try:
|
2228 | 35fbcd11 | Iustin Pop | shutil.rmtree(target) |
2229 | 35fbcd11 | Iustin Pop | except EnvironmentError, err: |
2230 | 35fbcd11 | Iustin Pop | _Fail("Error while removing the export: %s", err, exc=True) |
2231 | a8083063 | Iustin Pop | |
2232 | a8083063 | Iustin Pop | |
2233 | 821d1bd1 | Iustin Pop | def BlockdevRename(devlist): |
2234 | f3e513ad | Iustin Pop | """Rename a list of block devices.
|
2235 | f3e513ad | Iustin Pop |
|
2236 | 10c2650b | Iustin Pop | @type devlist: list of tuples
|
2237 | 10c2650b | Iustin Pop | @param devlist: list of tuples of the form (disk,
|
2238 | 10c2650b | Iustin Pop | new_logical_id, new_physical_id); disk is an
|
2239 | 10c2650b | Iustin Pop | L{objects.Disk} object describing the current disk,
|
2240 | 10c2650b | Iustin Pop | and new logical_id/physical_id is the name we
|
2241 | 10c2650b | Iustin Pop | rename it to
|
2242 | 10c2650b | Iustin Pop | @rtype: boolean
|
2243 | 10c2650b | Iustin Pop | @return: True if all renames succeeded, False otherwise
|
2244 | f3e513ad | Iustin Pop |
|
2245 | f3e513ad | Iustin Pop | """
|
2246 | 6b5e3f70 | Iustin Pop | msgs = [] |
2247 | f3e513ad | Iustin Pop | result = True
|
2248 | f3e513ad | Iustin Pop | for disk, unique_id in devlist: |
2249 | f3e513ad | Iustin Pop | dev = _RecursiveFindBD(disk) |
2250 | f3e513ad | Iustin Pop | if dev is None: |
2251 | 6b5e3f70 | Iustin Pop | msgs.append("Can't find device %s in rename" % str(disk)) |
2252 | f3e513ad | Iustin Pop | result = False
|
2253 | f3e513ad | Iustin Pop | continue
|
2254 | f3e513ad | Iustin Pop | try:
|
2255 | 3f78eef2 | Iustin Pop | old_rpath = dev.dev_path |
2256 | f3e513ad | Iustin Pop | dev.Rename(unique_id) |
2257 | 3f78eef2 | Iustin Pop | new_rpath = dev.dev_path |
2258 | 3f78eef2 | Iustin Pop | if old_rpath != new_rpath:
|
2259 | 3f78eef2 | Iustin Pop | DevCacheManager.RemoveCache(old_rpath) |
2260 | 3f78eef2 | Iustin Pop | # FIXME: we should add the new cache information here, like:
|
2261 | 3f78eef2 | Iustin Pop | # DevCacheManager.UpdateCache(new_rpath, owner, ...)
|
2262 | 3f78eef2 | Iustin Pop | # but we don't have the owner here - maybe parse from existing
|
2263 | 3f78eef2 | Iustin Pop | # cache? for now, we only lose lvm data when we rename, which
|
2264 | 3f78eef2 | Iustin Pop | # is less critical than DRBD or MD
|
2265 | f3e513ad | Iustin Pop | except errors.BlockDeviceError, err:
|
2266 | 6b5e3f70 | Iustin Pop | msgs.append("Can't rename device '%s' to '%s': %s" %
|
2267 | 6b5e3f70 | Iustin Pop | (dev, unique_id, err)) |
2268 | 18682bca | Iustin Pop | logging.exception("Can't rename device '%s' to '%s'", dev, unique_id)
|
2269 | f3e513ad | Iustin Pop | result = False
|
2270 | afdc3985 | Iustin Pop | if not result: |
2271 | afdc3985 | Iustin Pop | _Fail("; ".join(msgs))
|
2272 | f3e513ad | Iustin Pop | |
2273 | f3e513ad | Iustin Pop | |
2274 | 778b75bb | Manuel Franceschini | def _TransformFileStorageDir(file_storage_dir): |
2275 | 778b75bb | Manuel Franceschini | """Checks whether given file_storage_dir is valid.
|
2276 | 778b75bb | Manuel Franceschini |
|
2277 | 778b75bb | Manuel Franceschini | Checks wheter the given file_storage_dir is within the cluster-wide
|
2278 | 778b75bb | Manuel Franceschini | default file_storage_dir stored in SimpleStore. Only paths under that
|
2279 | 778b75bb | Manuel Franceschini | directory are allowed.
|
2280 | 778b75bb | Manuel Franceschini |
|
2281 | b1206984 | Iustin Pop | @type file_storage_dir: str
|
2282 | b1206984 | Iustin Pop | @param file_storage_dir: the path to check
|
2283 | d61cbe76 | Iustin Pop |
|
2284 | b1206984 | Iustin Pop | @return: the normalized path if valid, None otherwise
|
2285 | 778b75bb | Manuel Franceschini |
|
2286 | 778b75bb | Manuel Franceschini | """
|
2287 | cb7c0198 | Iustin Pop | if not constants.ENABLE_FILE_STORAGE: |
2288 | cb7c0198 | Iustin Pop | _Fail("File storage disabled at configure time")
|
2289 | c657dcc9 | Michael Hanselmann | cfg = _GetConfig() |
2290 | 778b75bb | Manuel Franceschini | file_storage_dir = os.path.normpath(file_storage_dir) |
2291 | c657dcc9 | Michael Hanselmann | base_file_storage_dir = cfg.GetFileStorageDir() |
2292 | 56569f4e | Michael Hanselmann | if (os.path.commonprefix([file_storage_dir, base_file_storage_dir]) !=
|
2293 | 778b75bb | Manuel Franceschini | base_file_storage_dir): |
2294 | b2b8bcce | Iustin Pop | _Fail("File storage directory '%s' is not under base file"
|
2295 | b2b8bcce | Iustin Pop | " storage directory '%s'", file_storage_dir, base_file_storage_dir)
|
2296 | 778b75bb | Manuel Franceschini | return file_storage_dir
|
2297 | 778b75bb | Manuel Franceschini | |
2298 | 778b75bb | Manuel Franceschini | |
2299 | 778b75bb | Manuel Franceschini | def CreateFileStorageDir(file_storage_dir): |
2300 | 778b75bb | Manuel Franceschini | """Create file storage directory.
|
2301 | 778b75bb | Manuel Franceschini |
|
2302 | b1206984 | Iustin Pop | @type file_storage_dir: str
|
2303 | b1206984 | Iustin Pop | @param file_storage_dir: directory to create
|
2304 | 778b75bb | Manuel Franceschini |
|
2305 | b1206984 | Iustin Pop | @rtype: tuple
|
2306 | b1206984 | Iustin Pop | @return: tuple with first element a boolean indicating wheter dir
|
2307 | b1206984 | Iustin Pop | creation was successful or not
|
2308 | 778b75bb | Manuel Franceschini |
|
2309 | 778b75bb | Manuel Franceschini | """
|
2310 | 778b75bb | Manuel Franceschini | file_storage_dir = _TransformFileStorageDir(file_storage_dir) |
2311 | b2b8bcce | Iustin Pop | if os.path.exists(file_storage_dir):
|
2312 | b2b8bcce | Iustin Pop | if not os.path.isdir(file_storage_dir): |
2313 | b2b8bcce | Iustin Pop | _Fail("Specified storage dir '%s' is not a directory",
|
2314 | b2b8bcce | Iustin Pop | file_storage_dir) |
2315 | 778b75bb | Manuel Franceschini | else:
|
2316 | b2b8bcce | Iustin Pop | try:
|
2317 | b2b8bcce | Iustin Pop | os.makedirs(file_storage_dir, 0750)
|
2318 | b2b8bcce | Iustin Pop | except OSError, err: |
2319 | b2b8bcce | Iustin Pop | _Fail("Cannot create file storage directory '%s': %s",
|
2320 | b2b8bcce | Iustin Pop | file_storage_dir, err, exc=True)
|
2321 | 778b75bb | Manuel Franceschini | |
2322 | 778b75bb | Manuel Franceschini | |
2323 | 778b75bb | Manuel Franceschini | def RemoveFileStorageDir(file_storage_dir): |
2324 | 778b75bb | Manuel Franceschini | """Remove file storage directory.
|
2325 | 778b75bb | Manuel Franceschini |
|
2326 | 778b75bb | Manuel Franceschini | Remove it only if it's empty. If not log an error and return.
|
2327 | 778b75bb | Manuel Franceschini |
|
2328 | 10c2650b | Iustin Pop | @type file_storage_dir: str
|
2329 | 10c2650b | Iustin Pop | @param file_storage_dir: the directory we should cleanup
|
2330 | 10c2650b | Iustin Pop | @rtype: tuple (success,)
|
2331 | 10c2650b | Iustin Pop | @return: tuple of one element, C{success}, denoting
|
2332 | 5bbd3f7f | Michael Hanselmann | whether the operation was successful
|
2333 | 778b75bb | Manuel Franceschini |
|
2334 | 778b75bb | Manuel Franceschini | """
|
2335 | 778b75bb | Manuel Franceschini | file_storage_dir = _TransformFileStorageDir(file_storage_dir) |
2336 | b2b8bcce | Iustin Pop | if os.path.exists(file_storage_dir):
|
2337 | b2b8bcce | Iustin Pop | if not os.path.isdir(file_storage_dir): |
2338 | b2b8bcce | Iustin Pop | _Fail("Specified Storage directory '%s' is not a directory",
|
2339 | b2b8bcce | Iustin Pop | file_storage_dir) |
2340 | afdc3985 | Iustin Pop | # deletes dir only if empty, otherwise we want to fail the rpc call
|
2341 | b2b8bcce | Iustin Pop | try:
|
2342 | b2b8bcce | Iustin Pop | os.rmdir(file_storage_dir) |
2343 | b2b8bcce | Iustin Pop | except OSError, err: |
2344 | b2b8bcce | Iustin Pop | _Fail("Cannot remove file storage directory '%s': %s",
|
2345 | b2b8bcce | Iustin Pop | file_storage_dir, err) |
2346 | b2b8bcce | Iustin Pop | |
2347 | 778b75bb | Manuel Franceschini | |
2348 | 778b75bb | Manuel Franceschini | def RenameFileStorageDir(old_file_storage_dir, new_file_storage_dir): |
2349 | 778b75bb | Manuel Franceschini | """Rename the file storage directory.
|
2350 | 778b75bb | Manuel Franceschini |
|
2351 | 10c2650b | Iustin Pop | @type old_file_storage_dir: str
|
2352 | 10c2650b | Iustin Pop | @param old_file_storage_dir: the current path
|
2353 | 10c2650b | Iustin Pop | @type new_file_storage_dir: str
|
2354 | 10c2650b | Iustin Pop | @param new_file_storage_dir: the name we should rename to
|
2355 | 10c2650b | Iustin Pop | @rtype: tuple (success,)
|
2356 | 10c2650b | Iustin Pop | @return: tuple of one element, C{success}, denoting
|
2357 | 10c2650b | Iustin Pop | whether the operation was successful
|
2358 | 778b75bb | Manuel Franceschini |
|
2359 | 778b75bb | Manuel Franceschini | """
|
2360 | 778b75bb | Manuel Franceschini | old_file_storage_dir = _TransformFileStorageDir(old_file_storage_dir) |
2361 | 778b75bb | Manuel Franceschini | new_file_storage_dir = _TransformFileStorageDir(new_file_storage_dir) |
2362 | b2b8bcce | Iustin Pop | if not os.path.exists(new_file_storage_dir): |
2363 | b2b8bcce | Iustin Pop | if os.path.isdir(old_file_storage_dir):
|
2364 | b2b8bcce | Iustin Pop | try:
|
2365 | b2b8bcce | Iustin Pop | os.rename(old_file_storage_dir, new_file_storage_dir) |
2366 | b2b8bcce | Iustin Pop | except OSError, err: |
2367 | b2b8bcce | Iustin Pop | _Fail("Cannot rename '%s' to '%s': %s",
|
2368 | b2b8bcce | Iustin Pop | old_file_storage_dir, new_file_storage_dir, err) |
2369 | 778b75bb | Manuel Franceschini | else:
|
2370 | b2b8bcce | Iustin Pop | _Fail("Specified storage dir '%s' is not a directory",
|
2371 | b2b8bcce | Iustin Pop | old_file_storage_dir) |
2372 | b2b8bcce | Iustin Pop | else:
|
2373 | b2b8bcce | Iustin Pop | if os.path.exists(old_file_storage_dir):
|
2374 | b2b8bcce | Iustin Pop | _Fail("Cannot rename '%s' to '%s': both locations exist",
|
2375 | b2b8bcce | Iustin Pop | old_file_storage_dir, new_file_storage_dir) |
2376 | 778b75bb | Manuel Franceschini | |
2377 | 778b75bb | Manuel Franceschini | |
2378 | c8457ce7 | Iustin Pop | def _EnsureJobQueueFile(file_name): |
2379 | dc31eae3 | Michael Hanselmann | """Checks whether the given filename is in the queue directory.
|
2380 | ca52cdeb | Michael Hanselmann |
|
2381 | 10c2650b | Iustin Pop | @type file_name: str
|
2382 | 10c2650b | Iustin Pop | @param file_name: the file name we should check
|
2383 | c8457ce7 | Iustin Pop | @rtype: None
|
2384 | c8457ce7 | Iustin Pop | @raises RPCFail: if the file is not valid
|
2385 | 10c2650b | Iustin Pop |
|
2386 | ca52cdeb | Michael Hanselmann | """
|
2387 | ca52cdeb | Michael Hanselmann | queue_dir = os.path.normpath(constants.QUEUE_DIR) |
2388 | dc31eae3 | Michael Hanselmann | result = (os.path.commonprefix([queue_dir, file_name]) == queue_dir) |
2389 | dc31eae3 | Michael Hanselmann | |
2390 | dc31eae3 | Michael Hanselmann | if not result: |
2391 | c8457ce7 | Iustin Pop | _Fail("Passed job queue file '%s' does not belong to"
|
2392 | c8457ce7 | Iustin Pop | " the queue directory '%s'", file_name, queue_dir)
|
2393 | dc31eae3 | Michael Hanselmann | |
2394 | dc31eae3 | Michael Hanselmann | |
2395 | dc31eae3 | Michael Hanselmann | def JobQueueUpdate(file_name, content): |
2396 | dc31eae3 | Michael Hanselmann | """Updates a file in the queue directory.
|
2397 | dc31eae3 | Michael Hanselmann |
|
2398 | 10c2650b | Iustin Pop | This is just a wrapper over L{utils.WriteFile}, with proper
|
2399 | 10c2650b | Iustin Pop | checking.
|
2400 | 10c2650b | Iustin Pop |
|
2401 | 10c2650b | Iustin Pop | @type file_name: str
|
2402 | 10c2650b | Iustin Pop | @param file_name: the job file name
|
2403 | 10c2650b | Iustin Pop | @type content: str
|
2404 | 10c2650b | Iustin Pop | @param content: the new job contents
|
2405 | 10c2650b | Iustin Pop | @rtype: boolean
|
2406 | 10c2650b | Iustin Pop | @return: the success of the operation
|
2407 | 10c2650b | Iustin Pop |
|
2408 | dc31eae3 | Michael Hanselmann | """
|
2409 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(file_name) |
2410 | ca52cdeb | Michael Hanselmann | |
2411 | ca52cdeb | Michael Hanselmann | # Write and replace the file atomically
|
2412 | 12bce260 | Michael Hanselmann | utils.WriteFile(file_name, data=_Decompress(content)) |
2413 | ca52cdeb | Michael Hanselmann | |
2414 | ca52cdeb | Michael Hanselmann | |
2415 | af5ebcb1 | Michael Hanselmann | def JobQueueRename(old, new): |
2416 | af5ebcb1 | Michael Hanselmann | """Renames a job queue file.
|
2417 | af5ebcb1 | Michael Hanselmann |
|
2418 | c41eea6e | Iustin Pop | This is just a wrapper over os.rename with proper checking.
|
2419 | 10c2650b | Iustin Pop |
|
2420 | 10c2650b | Iustin Pop | @type old: str
|
2421 | 10c2650b | Iustin Pop | @param old: the old (actual) file name
|
2422 | 10c2650b | Iustin Pop | @type new: str
|
2423 | 10c2650b | Iustin Pop | @param new: the desired file name
|
2424 | c8457ce7 | Iustin Pop | @rtype: tuple
|
2425 | c8457ce7 | Iustin Pop | @return: the success of the operation and payload
|
2426 | 10c2650b | Iustin Pop |
|
2427 | af5ebcb1 | Michael Hanselmann | """
|
2428 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(old) |
2429 | c8457ce7 | Iustin Pop | _EnsureJobQueueFile(new) |
2430 | af5ebcb1 | Michael Hanselmann | |
2431 | 58b22b6e | Michael Hanselmann | utils.RenameFile(old, new, mkdir=True)
|
2432 | af5ebcb1 | Michael Hanselmann | |
2433 | af5ebcb1 | Michael Hanselmann | |
2434 | 821d1bd1 | Iustin Pop | def BlockdevClose(instance_name, disks): |
2435 | d61cbe76 | Iustin Pop | """Closes the given block devices.
|
2436 | d61cbe76 | Iustin Pop |
|
2437 | 10c2650b | Iustin Pop | This means they will be switched to secondary mode (in case of
|
2438 | 10c2650b | Iustin Pop | DRBD).
|
2439 | 10c2650b | Iustin Pop |
|
2440 | b2e7666a | Iustin Pop | @param instance_name: if the argument is not empty, the symlinks
|
2441 | b2e7666a | Iustin Pop | of this instance will be removed
|
2442 | 10c2650b | Iustin Pop | @type disks: list of L{objects.Disk}
|
2443 | 10c2650b | Iustin Pop | @param disks: the list of disks to be closed
|
2444 | 10c2650b | Iustin Pop | @rtype: tuple (success, message)
|
2445 | 10c2650b | Iustin Pop | @return: a tuple of success and message, where success
|
2446 | 10c2650b | Iustin Pop | indicates the succes of the operation, and message
|
2447 | 10c2650b | Iustin Pop | which will contain the error details in case we
|
2448 | 10c2650b | Iustin Pop | failed
|
2449 | d61cbe76 | Iustin Pop |
|
2450 | d61cbe76 | Iustin Pop | """
|
2451 | d61cbe76 | Iustin Pop | bdevs = [] |
2452 | d61cbe76 | Iustin Pop | for cf in disks: |
2453 | d61cbe76 | Iustin Pop | rd = _RecursiveFindBD(cf) |
2454 | d61cbe76 | Iustin Pop | if rd is None: |
2455 | 2cc6781a | Iustin Pop | _Fail("Can't find device %s", cf)
|
2456 | d61cbe76 | Iustin Pop | bdevs.append(rd) |
2457 | d61cbe76 | Iustin Pop | |
2458 | d61cbe76 | Iustin Pop | msg = [] |
2459 | d61cbe76 | Iustin Pop | for rd in bdevs: |
2460 | d61cbe76 | Iustin Pop | try:
|
2461 | d61cbe76 | Iustin Pop | rd.Close() |
2462 | d61cbe76 | Iustin Pop | except errors.BlockDeviceError, err:
|
2463 | d61cbe76 | Iustin Pop | msg.append(str(err))
|
2464 | d61cbe76 | Iustin Pop | if msg:
|
2465 | afdc3985 | Iustin Pop | _Fail("Can't make devices secondary: %s", ",".join(msg)) |
2466 | d61cbe76 | Iustin Pop | else:
|
2467 | b2e7666a | Iustin Pop | if instance_name:
|
2468 | 5282084b | Iustin Pop | _RemoveBlockDevLinks(instance_name, disks) |
2469 | d61cbe76 | Iustin Pop | |
2470 | d61cbe76 | Iustin Pop | |
2471 | 6217e295 | Iustin Pop | def ValidateHVParams(hvname, hvparams): |
2472 | 6217e295 | Iustin Pop | """Validates the given hypervisor parameters.
|
2473 | 6217e295 | Iustin Pop |
|
2474 | 6217e295 | Iustin Pop | @type hvname: string
|
2475 | 6217e295 | Iustin Pop | @param hvname: the hypervisor name
|
2476 | 6217e295 | Iustin Pop | @type hvparams: dict
|
2477 | 6217e295 | Iustin Pop | @param hvparams: the hypervisor parameters to be validated
|
2478 | c26a6bd2 | Iustin Pop | @rtype: None
|
2479 | 6217e295 | Iustin Pop |
|
2480 | 6217e295 | Iustin Pop | """
|
2481 | 6217e295 | Iustin Pop | try:
|
2482 | 6217e295 | Iustin Pop | hv_type = hypervisor.GetHypervisor(hvname) |
2483 | 6217e295 | Iustin Pop | hv_type.ValidateParameters(hvparams) |
2484 | 6217e295 | Iustin Pop | except errors.HypervisorError, err:
|
2485 | afdc3985 | Iustin Pop | _Fail(str(err), log=False) |
2486 | 6217e295 | Iustin Pop | |
2487 | 6217e295 | Iustin Pop | |
2488 | acd9ff9e | Iustin Pop | def _CheckOSPList(os_obj, parameters): |
2489 | acd9ff9e | Iustin Pop | """Check whether a list of parameters is supported by the OS.
|
2490 | acd9ff9e | Iustin Pop |
|
2491 | acd9ff9e | Iustin Pop | @type os_obj: L{objects.OS}
|
2492 | acd9ff9e | Iustin Pop | @param os_obj: OS object to check
|
2493 | acd9ff9e | Iustin Pop | @type parameters: list
|
2494 | acd9ff9e | Iustin Pop | @param parameters: the list of parameters to check
|
2495 | acd9ff9e | Iustin Pop |
|
2496 | acd9ff9e | Iustin Pop | """
|
2497 | acd9ff9e | Iustin Pop | supported = [v[0] for v in os_obj.supported_parameters] |
2498 | acd9ff9e | Iustin Pop | delta = frozenset(parameters).difference(supported)
|
2499 | acd9ff9e | Iustin Pop | if delta:
|
2500 | acd9ff9e | Iustin Pop | _Fail("The following parameters are not supported"
|
2501 | acd9ff9e | Iustin Pop | " by the OS %s: %s" % (os_obj.name, utils.CommaJoin(delta)))
|
2502 | acd9ff9e | Iustin Pop | |
2503 | acd9ff9e | Iustin Pop | |
2504 | acd9ff9e | Iustin Pop | def ValidateOS(required, osname, checks, osparams): |
2505 | acd9ff9e | Iustin Pop | """Validate the given OS' parameters.
|
2506 | acd9ff9e | Iustin Pop |
|
2507 | acd9ff9e | Iustin Pop | @type required: boolean
|
2508 | acd9ff9e | Iustin Pop | @param required: whether absence of the OS should translate into
|
2509 | acd9ff9e | Iustin Pop | failure or not
|
2510 | acd9ff9e | Iustin Pop | @type osname: string
|
2511 | acd9ff9e | Iustin Pop | @param osname: the OS to be validated
|
2512 | acd9ff9e | Iustin Pop | @type checks: list
|
2513 | acd9ff9e | Iustin Pop | @param checks: list of the checks to run (currently only 'parameters')
|
2514 | acd9ff9e | Iustin Pop | @type osparams: dict
|
2515 | acd9ff9e | Iustin Pop | @param osparams: dictionary with OS parameters
|
2516 | acd9ff9e | Iustin Pop | @rtype: boolean
|
2517 | acd9ff9e | Iustin Pop | @return: True if the validation passed, or False if the OS was not
|
2518 | acd9ff9e | Iustin Pop | found and L{required} was false
|
2519 | acd9ff9e | Iustin Pop |
|
2520 | acd9ff9e | Iustin Pop | """
|
2521 | acd9ff9e | Iustin Pop | if not constants.OS_VALIDATE_CALLS.issuperset(checks): |
2522 | acd9ff9e | Iustin Pop | _Fail("Unknown checks required for OS %s: %s", osname,
|
2523 | acd9ff9e | Iustin Pop | set(checks).difference(constants.OS_VALIDATE_CALLS))
|
2524 | acd9ff9e | Iustin Pop | |
2525 | acd9ff9e | Iustin Pop | name_only = osname.split("+", 1)[0] |
2526 | acd9ff9e | Iustin Pop | status, tbv = _TryOSFromDisk(name_only, None)
|
2527 | acd9ff9e | Iustin Pop | |
2528 | acd9ff9e | Iustin Pop | if not status: |
2529 | acd9ff9e | Iustin Pop | if required:
|
2530 | acd9ff9e | Iustin Pop | _Fail(tbv) |
2531 | acd9ff9e | Iustin Pop | else:
|
2532 | acd9ff9e | Iustin Pop | return False |
2533 | acd9ff9e | Iustin Pop | |
2534 | 72db3fd7 | Iustin Pop | if max(tbv.api_versions) < constants.OS_API_V20: |
2535 | 72db3fd7 | Iustin Pop | return True |
2536 | 72db3fd7 | Iustin Pop | |
2537 | acd9ff9e | Iustin Pop | if constants.OS_VALIDATE_PARAMETERS in checks: |
2538 | acd9ff9e | Iustin Pop | _CheckOSPList(tbv, osparams.keys()) |
2539 | acd9ff9e | Iustin Pop | |
2540 | acd9ff9e | Iustin Pop | validate_env = OSCoreEnv(tbv, osparams) |
2541 | acd9ff9e | Iustin Pop | result = utils.RunCmd([tbv.verify_script] + checks, env=validate_env, |
2542 | acd9ff9e | Iustin Pop | cwd=tbv.path) |
2543 | acd9ff9e | Iustin Pop | if result.failed:
|
2544 | acd9ff9e | Iustin Pop | logging.error("os validate command '%s' returned error: %s output: %s",
|
2545 | acd9ff9e | Iustin Pop | result.cmd, result.fail_reason, result.output) |
2546 | acd9ff9e | Iustin Pop | _Fail("OS validation script failed (%s), output: %s",
|
2547 | acd9ff9e | Iustin Pop | result.fail_reason, result.output, log=False)
|
2548 | acd9ff9e | Iustin Pop | |
2549 | acd9ff9e | Iustin Pop | return True |
2550 | acd9ff9e | Iustin Pop | |
2551 | acd9ff9e | Iustin Pop | |
2552 | 56aa9fd5 | Iustin Pop | def DemoteFromMC(): |
2553 | 56aa9fd5 | Iustin Pop | """Demotes the current node from master candidate role.
|
2554 | 56aa9fd5 | Iustin Pop |
|
2555 | 56aa9fd5 | Iustin Pop | """
|
2556 | 56aa9fd5 | Iustin Pop | # try to ensure we're not the master by mistake
|
2557 | 56aa9fd5 | Iustin Pop | master, myself = ssconf.GetMasterAndMyself() |
2558 | 56aa9fd5 | Iustin Pop | if master == myself:
|
2559 | afdc3985 | Iustin Pop | _Fail("ssconf status shows I'm the master node, will not demote")
|
2560 | f154a7a3 | Michael Hanselmann | |
2561 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "check", constants.MASTERD])
|
2562 | f154a7a3 | Michael Hanselmann | if not result.failed: |
2563 | afdc3985 | Iustin Pop | _Fail("The master daemon is running, will not demote")
|
2564 | f154a7a3 | Michael Hanselmann | |
2565 | 56aa9fd5 | Iustin Pop | try:
|
2566 | 9a5cb537 | Iustin Pop | if os.path.isfile(constants.CLUSTER_CONF_FILE):
|
2567 | 9a5cb537 | Iustin Pop | utils.CreateBackup(constants.CLUSTER_CONF_FILE) |
2568 | 56aa9fd5 | Iustin Pop | except EnvironmentError, err: |
2569 | 56aa9fd5 | Iustin Pop | if err.errno != errno.ENOENT:
|
2570 | afdc3985 | Iustin Pop | _Fail("Error while backing up cluster file: %s", err, exc=True) |
2571 | f154a7a3 | Michael Hanselmann | |
2572 | 56aa9fd5 | Iustin Pop | utils.RemoveFile(constants.CLUSTER_CONF_FILE) |
2573 | 56aa9fd5 | Iustin Pop | |
2574 | 56aa9fd5 | Iustin Pop | |
2575 | f942a838 | Michael Hanselmann | def _GetX509Filenames(cryptodir, name): |
2576 | f942a838 | Michael Hanselmann | """Returns the full paths for the private key and certificate.
|
2577 | f942a838 | Michael Hanselmann |
|
2578 | f942a838 | Michael Hanselmann | """
|
2579 | f942a838 | Michael Hanselmann | return (utils.PathJoin(cryptodir, name),
|
2580 | f942a838 | Michael Hanselmann | utils.PathJoin(cryptodir, name, _X509_KEY_FILE), |
2581 | f942a838 | Michael Hanselmann | utils.PathJoin(cryptodir, name, _X509_CERT_FILE)) |
2582 | f942a838 | Michael Hanselmann | |
2583 | f942a838 | Michael Hanselmann | |
2584 | f942a838 | Michael Hanselmann | def CreateX509Certificate(validity, cryptodir=constants.CRYPTO_KEYS_DIR): |
2585 | f942a838 | Michael Hanselmann | """Creates a new X509 certificate for SSL/TLS.
|
2586 | f942a838 | Michael Hanselmann |
|
2587 | f942a838 | Michael Hanselmann | @type validity: int
|
2588 | f942a838 | Michael Hanselmann | @param validity: Validity in seconds
|
2589 | f942a838 | Michael Hanselmann | @rtype: tuple; (string, string)
|
2590 | f942a838 | Michael Hanselmann | @return: Certificate name and public part
|
2591 | f942a838 | Michael Hanselmann |
|
2592 | f942a838 | Michael Hanselmann | """
|
2593 | f942a838 | Michael Hanselmann | (key_pem, cert_pem) = \ |
2594 | f942a838 | Michael Hanselmann | utils.GenerateSelfSignedX509Cert(utils.HostInfo.SysName(), |
2595 | f942a838 | Michael Hanselmann | min(validity, _MAX_SSL_CERT_VALIDITY))
|
2596 | f942a838 | Michael Hanselmann | |
2597 | f942a838 | Michael Hanselmann | cert_dir = tempfile.mkdtemp(dir=cryptodir, |
2598 | f942a838 | Michael Hanselmann | prefix="x509-%s-" % utils.TimestampForFilename())
|
2599 | f942a838 | Michael Hanselmann | try:
|
2600 | f942a838 | Michael Hanselmann | name = os.path.basename(cert_dir) |
2601 | f942a838 | Michael Hanselmann | assert len(name) > 5 |
2602 | f942a838 | Michael Hanselmann | |
2603 | f942a838 | Michael Hanselmann | (_, key_file, cert_file) = _GetX509Filenames(cryptodir, name) |
2604 | f942a838 | Michael Hanselmann | |
2605 | f942a838 | Michael Hanselmann | utils.WriteFile(key_file, mode=0400, data=key_pem)
|
2606 | f942a838 | Michael Hanselmann | utils.WriteFile(cert_file, mode=0400, data=cert_pem)
|
2607 | f942a838 | Michael Hanselmann | |
2608 | f942a838 | Michael Hanselmann | # Never return private key as it shouldn't leave the node
|
2609 | f942a838 | Michael Hanselmann | return (name, cert_pem)
|
2610 | f942a838 | Michael Hanselmann | except Exception: |
2611 | f942a838 | Michael Hanselmann | shutil.rmtree(cert_dir, ignore_errors=True)
|
2612 | f942a838 | Michael Hanselmann | raise
|
2613 | f942a838 | Michael Hanselmann | |
2614 | f942a838 | Michael Hanselmann | |
2615 | f942a838 | Michael Hanselmann | def RemoveX509Certificate(name, cryptodir=constants.CRYPTO_KEYS_DIR): |
2616 | f942a838 | Michael Hanselmann | """Removes a X509 certificate.
|
2617 | f942a838 | Michael Hanselmann |
|
2618 | f942a838 | Michael Hanselmann | @type name: string
|
2619 | f942a838 | Michael Hanselmann | @param name: Certificate name
|
2620 | f942a838 | Michael Hanselmann |
|
2621 | f942a838 | Michael Hanselmann | """
|
2622 | f942a838 | Michael Hanselmann | (cert_dir, key_file, cert_file) = _GetX509Filenames(cryptodir, name) |
2623 | f942a838 | Michael Hanselmann | |
2624 | f942a838 | Michael Hanselmann | utils.RemoveFile(key_file) |
2625 | f942a838 | Michael Hanselmann | utils.RemoveFile(cert_file) |
2626 | f942a838 | Michael Hanselmann | |
2627 | f942a838 | Michael Hanselmann | try:
|
2628 | f942a838 | Michael Hanselmann | os.rmdir(cert_dir) |
2629 | f942a838 | Michael Hanselmann | except EnvironmentError, err: |
2630 | f942a838 | Michael Hanselmann | _Fail("Cannot remove certificate directory '%s': %s",
|
2631 | f942a838 | Michael Hanselmann | cert_dir, err) |
2632 | f942a838 | Michael Hanselmann | |
2633 | f942a838 | Michael Hanselmann | |
2634 | 1651d116 | Michael Hanselmann | def _GetImportExportIoCommand(instance, mode, ieio, ieargs): |
2635 | 1651d116 | Michael Hanselmann | """Returns the command for the requested input/output.
|
2636 | 1651d116 | Michael Hanselmann |
|
2637 | 1651d116 | Michael Hanselmann | @type instance: L{objects.Instance}
|
2638 | 1651d116 | Michael Hanselmann | @param instance: The instance object
|
2639 | 1651d116 | Michael Hanselmann | @param mode: Import/export mode
|
2640 | 1651d116 | Michael Hanselmann | @param ieio: Input/output type
|
2641 | 1651d116 | Michael Hanselmann | @param ieargs: Input/output arguments
|
2642 | 1651d116 | Michael Hanselmann |
|
2643 | 1651d116 | Michael Hanselmann | """
|
2644 | 1651d116 | Michael Hanselmann | assert mode in (constants.IEM_IMPORT, constants.IEM_EXPORT) |
2645 | 1651d116 | Michael Hanselmann | |
2646 | 1651d116 | Michael Hanselmann | env = None
|
2647 | 1651d116 | Michael Hanselmann | prefix = None
|
2648 | 1651d116 | Michael Hanselmann | suffix = None
|
2649 | 2ad5550d | Michael Hanselmann | exp_size = None
|
2650 | 1651d116 | Michael Hanselmann | |
2651 | 1651d116 | Michael Hanselmann | if ieio == constants.IEIO_FILE:
|
2652 | 1651d116 | Michael Hanselmann | (filename, ) = ieargs |
2653 | 1651d116 | Michael Hanselmann | |
2654 | 1651d116 | Michael Hanselmann | if not utils.IsNormAbsPath(filename): |
2655 | 1651d116 | Michael Hanselmann | _Fail("Path '%s' is not normalized or absolute", filename)
|
2656 | 1651d116 | Michael Hanselmann | |
2657 | 1651d116 | Michael Hanselmann | directory = os.path.normpath(os.path.dirname(filename)) |
2658 | 1651d116 | Michael Hanselmann | |
2659 | 1651d116 | Michael Hanselmann | if (os.path.commonprefix([constants.EXPORT_DIR, directory]) !=
|
2660 | 1651d116 | Michael Hanselmann | constants.EXPORT_DIR): |
2661 | 1651d116 | Michael Hanselmann | _Fail("File '%s' is not under exports directory '%s'",
|
2662 | 1651d116 | Michael Hanselmann | filename, constants.EXPORT_DIR) |
2663 | 1651d116 | Michael Hanselmann | |
2664 | 1651d116 | Michael Hanselmann | # Create directory
|
2665 | 1651d116 | Michael Hanselmann | utils.Makedirs(directory, mode=0750)
|
2666 | 1651d116 | Michael Hanselmann | |
2667 | 1651d116 | Michael Hanselmann | quoted_filename = utils.ShellQuote(filename) |
2668 | 1651d116 | Michael Hanselmann | |
2669 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2670 | 1651d116 | Michael Hanselmann | suffix = "> %s" % quoted_filename
|
2671 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2672 | 1651d116 | Michael Hanselmann | suffix = "< %s" % quoted_filename
|
2673 | 1651d116 | Michael Hanselmann | |
2674 | 2ad5550d | Michael Hanselmann | # Retrieve file size
|
2675 | 2ad5550d | Michael Hanselmann | try:
|
2676 | 2ad5550d | Michael Hanselmann | st = os.stat(filename) |
2677 | 2ad5550d | Michael Hanselmann | except EnvironmentError, err: |
2678 | 2ad5550d | Michael Hanselmann | logging.error("Can't stat(2) %s: %s", filename, err)
|
2679 | 2ad5550d | Michael Hanselmann | else:
|
2680 | 2ad5550d | Michael Hanselmann | exp_size = utils.BytesToMebibyte(st.st_size) |
2681 | 2ad5550d | Michael Hanselmann | |
2682 | 1651d116 | Michael Hanselmann | elif ieio == constants.IEIO_RAW_DISK:
|
2683 | 1651d116 | Michael Hanselmann | (disk, ) = ieargs |
2684 | 1651d116 | Michael Hanselmann | |
2685 | 1651d116 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2686 | 1651d116 | Michael Hanselmann | |
2687 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2688 | 1651d116 | Michael Hanselmann | # we set here a smaller block size as, due to transport buffering, more
|
2689 | 1651d116 | Michael Hanselmann | # than 64-128k will mostly ignored; we use nocreat to fail if the device
|
2690 | 1651d116 | Michael Hanselmann | # is not already there or we pass a wrong path; we use notrunc to no
|
2691 | 1651d116 | Michael Hanselmann | # attempt truncate on an LV device; we use oflag=dsync to not buffer too
|
2692 | 1651d116 | Michael Hanselmann | # much memory; this means that at best, we flush every 64k, which will
|
2693 | 1651d116 | Michael Hanselmann | # not be very fast
|
2694 | 1651d116 | Michael Hanselmann | suffix = utils.BuildShellCmd(("| dd of=%s conv=nocreat,notrunc"
|
2695 | 1651d116 | Michael Hanselmann | " bs=%s oflag=dsync"),
|
2696 | 1651d116 | Michael Hanselmann | real_disk.dev_path, |
2697 | 1651d116 | Michael Hanselmann | str(64 * 1024)) |
2698 | 1651d116 | Michael Hanselmann | |
2699 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2700 | 1651d116 | Michael Hanselmann | # the block size on the read dd is 1MiB to match our units
|
2701 | 1651d116 | Michael Hanselmann | prefix = utils.BuildShellCmd("dd if=%s bs=%s count=%s |",
|
2702 | 1651d116 | Michael Hanselmann | real_disk.dev_path, |
2703 | 1651d116 | Michael Hanselmann | str(1024 * 1024), # 1 MB |
2704 | 1651d116 | Michael Hanselmann | str(disk.size))
|
2705 | 2ad5550d | Michael Hanselmann | exp_size = disk.size |
2706 | 1651d116 | Michael Hanselmann | |
2707 | 1651d116 | Michael Hanselmann | elif ieio == constants.IEIO_SCRIPT:
|
2708 | 1651d116 | Michael Hanselmann | (disk, disk_index, ) = ieargs |
2709 | 1651d116 | Michael Hanselmann | |
2710 | 1651d116 | Michael Hanselmann | assert isinstance(disk_index, (int, long)) |
2711 | 1651d116 | Michael Hanselmann | |
2712 | 1651d116 | Michael Hanselmann | real_disk = _OpenRealBD(disk) |
2713 | 1651d116 | Michael Hanselmann | |
2714 | 1651d116 | Michael Hanselmann | inst_os = OSFromDisk(instance.os) |
2715 | 1651d116 | Michael Hanselmann | env = OSEnvironment(instance, inst_os) |
2716 | 1651d116 | Michael Hanselmann | |
2717 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2718 | 1651d116 | Michael Hanselmann | env["IMPORT_DEVICE"] = env["DISK_%d_PATH" % disk_index] |
2719 | 1651d116 | Michael Hanselmann | env["IMPORT_INDEX"] = str(disk_index) |
2720 | 1651d116 | Michael Hanselmann | script = inst_os.import_script |
2721 | 1651d116 | Michael Hanselmann | |
2722 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2723 | 1651d116 | Michael Hanselmann | env["EXPORT_DEVICE"] = real_disk.dev_path
|
2724 | 1651d116 | Michael Hanselmann | env["EXPORT_INDEX"] = str(disk_index) |
2725 | 1651d116 | Michael Hanselmann | script = inst_os.export_script |
2726 | 1651d116 | Michael Hanselmann | |
2727 | 1651d116 | Michael Hanselmann | # TODO: Pass special environment only to script
|
2728 | 1651d116 | Michael Hanselmann | script_cmd = utils.BuildShellCmd("( cd %s && %s; )", inst_os.path, script)
|
2729 | 1651d116 | Michael Hanselmann | |
2730 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2731 | 1651d116 | Michael Hanselmann | suffix = "| %s" % script_cmd
|
2732 | 1651d116 | Michael Hanselmann | |
2733 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2734 | 1651d116 | Michael Hanselmann | prefix = "%s |" % script_cmd
|
2735 | 1651d116 | Michael Hanselmann | |
2736 | 2ad5550d | Michael Hanselmann | # Let script predict size
|
2737 | 2ad5550d | Michael Hanselmann | exp_size = constants.IE_CUSTOM_SIZE |
2738 | 2ad5550d | Michael Hanselmann | |
2739 | 1651d116 | Michael Hanselmann | else:
|
2740 | 1651d116 | Michael Hanselmann | _Fail("Invalid %s I/O mode %r", mode, ieio)
|
2741 | 1651d116 | Michael Hanselmann | |
2742 | 2ad5550d | Michael Hanselmann | return (env, prefix, suffix, exp_size)
|
2743 | 1651d116 | Michael Hanselmann | |
2744 | 1651d116 | Michael Hanselmann | |
2745 | 1651d116 | Michael Hanselmann | def _CreateImportExportStatusDir(prefix): |
2746 | 1651d116 | Michael Hanselmann | """Creates status directory for import/export.
|
2747 | 1651d116 | Michael Hanselmann |
|
2748 | 1651d116 | Michael Hanselmann | """
|
2749 | 1651d116 | Michael Hanselmann | return tempfile.mkdtemp(dir=constants.IMPORT_EXPORT_DIR,
|
2750 | 1651d116 | Michael Hanselmann | prefix=("%s-%s-" %
|
2751 | 1651d116 | Michael Hanselmann | (prefix, utils.TimestampForFilename()))) |
2752 | 1651d116 | Michael Hanselmann | |
2753 | 1651d116 | Michael Hanselmann | |
2754 | eb630f50 | Michael Hanselmann | def StartImportExportDaemon(mode, opts, host, port, instance, ieio, ieioargs): |
2755 | 1651d116 | Michael Hanselmann | """Starts an import or export daemon.
|
2756 | 1651d116 | Michael Hanselmann |
|
2757 | 1651d116 | Michael Hanselmann | @param mode: Import/output mode
|
2758 | eb630f50 | Michael Hanselmann | @type opts: L{objects.ImportExportOptions}
|
2759 | eb630f50 | Michael Hanselmann | @param opts: Daemon options
|
2760 | 1651d116 | Michael Hanselmann | @type host: string
|
2761 | 1651d116 | Michael Hanselmann | @param host: Remote host for export (None for import)
|
2762 | 1651d116 | Michael Hanselmann | @type port: int
|
2763 | 1651d116 | Michael Hanselmann | @param port: Remote port for export (None for import)
|
2764 | 1651d116 | Michael Hanselmann | @type instance: L{objects.Instance}
|
2765 | 1651d116 | Michael Hanselmann | @param instance: Instance object
|
2766 | 1651d116 | Michael Hanselmann | @param ieio: Input/output type
|
2767 | 1651d116 | Michael Hanselmann | @param ieioargs: Input/output arguments
|
2768 | 1651d116 | Michael Hanselmann |
|
2769 | 1651d116 | Michael Hanselmann | """
|
2770 | 1651d116 | Michael Hanselmann | if mode == constants.IEM_IMPORT:
|
2771 | 1651d116 | Michael Hanselmann | prefix = "import"
|
2772 | 1651d116 | Michael Hanselmann | |
2773 | 1651d116 | Michael Hanselmann | if not (host is None and port is None): |
2774 | 1651d116 | Michael Hanselmann | _Fail("Can not specify host or port on import")
|
2775 | 1651d116 | Michael Hanselmann | |
2776 | 1651d116 | Michael Hanselmann | elif mode == constants.IEM_EXPORT:
|
2777 | 1651d116 | Michael Hanselmann | prefix = "export"
|
2778 | 1651d116 | Michael Hanselmann | |
2779 | 1651d116 | Michael Hanselmann | if host is None or port is None: |
2780 | 1651d116 | Michael Hanselmann | _Fail("Host and port must be specified for an export")
|
2781 | 1651d116 | Michael Hanselmann | |
2782 | 1651d116 | Michael Hanselmann | else:
|
2783 | 1651d116 | Michael Hanselmann | _Fail("Invalid mode %r", mode)
|
2784 | 1651d116 | Michael Hanselmann | |
2785 | eb630f50 | Michael Hanselmann | if (opts.key_name is None) ^ (opts.ca_pem is None): |
2786 | 1651d116 | Michael Hanselmann | _Fail("Cluster certificate can only be used for both key and CA")
|
2787 | 1651d116 | Michael Hanselmann | |
2788 | 2ad5550d | Michael Hanselmann | (cmd_env, cmd_prefix, cmd_suffix, exp_size) = \ |
2789 | 1651d116 | Michael Hanselmann | _GetImportExportIoCommand(instance, mode, ieio, ieioargs) |
2790 | 1651d116 | Michael Hanselmann | |
2791 | eb630f50 | Michael Hanselmann | if opts.key_name is None: |
2792 | 1651d116 | Michael Hanselmann | # Use server.pem
|
2793 | 1651d116 | Michael Hanselmann | key_path = constants.NODED_CERT_FILE |
2794 | 1651d116 | Michael Hanselmann | cert_path = constants.NODED_CERT_FILE |
2795 | eb630f50 | Michael Hanselmann | assert opts.ca_pem is None |
2796 | 1651d116 | Michael Hanselmann | else:
|
2797 | 1651d116 | Michael Hanselmann | (_, key_path, cert_path) = _GetX509Filenames(constants.CRYPTO_KEYS_DIR, |
2798 | eb630f50 | Michael Hanselmann | opts.key_name) |
2799 | eb630f50 | Michael Hanselmann | assert opts.ca_pem is not None |
2800 | 1651d116 | Michael Hanselmann | |
2801 | 63bcea2a | Michael Hanselmann | for i in [key_path, cert_path]: |
2802 | dcaabc4f | Michael Hanselmann | if not os.path.exists(i): |
2803 | 63bcea2a | Michael Hanselmann | _Fail("File '%s' does not exist" % i)
|
2804 | 63bcea2a | Michael Hanselmann | |
2805 | 1651d116 | Michael Hanselmann | status_dir = _CreateImportExportStatusDir(prefix) |
2806 | 1651d116 | Michael Hanselmann | try:
|
2807 | 1651d116 | Michael Hanselmann | status_file = utils.PathJoin(status_dir, _IES_STATUS_FILE) |
2808 | 1651d116 | Michael Hanselmann | pid_file = utils.PathJoin(status_dir, _IES_PID_FILE) |
2809 | 63bcea2a | Michael Hanselmann | ca_file = utils.PathJoin(status_dir, _IES_CA_FILE) |
2810 | 1651d116 | Michael Hanselmann | |
2811 | eb630f50 | Michael Hanselmann | if opts.ca_pem is None: |
2812 | 1651d116 | Michael Hanselmann | # Use server.pem
|
2813 | 63bcea2a | Michael Hanselmann | ca = utils.ReadFile(constants.NODED_CERT_FILE) |
2814 | eb630f50 | Michael Hanselmann | else:
|
2815 | eb630f50 | Michael Hanselmann | ca = opts.ca_pem |
2816 | 63bcea2a | Michael Hanselmann | |
2817 | eb630f50 | Michael Hanselmann | # Write CA file
|
2818 | 63bcea2a | Michael Hanselmann | utils.WriteFile(ca_file, data=ca, mode=0400)
|
2819 | 1651d116 | Michael Hanselmann | |
2820 | 1651d116 | Michael Hanselmann | cmd = [ |
2821 | 1651d116 | Michael Hanselmann | constants.IMPORT_EXPORT_DAEMON, |
2822 | 1651d116 | Michael Hanselmann | status_file, mode, |
2823 | 1651d116 | Michael Hanselmann | "--key=%s" % key_path,
|
2824 | 1651d116 | Michael Hanselmann | "--cert=%s" % cert_path,
|
2825 | 63bcea2a | Michael Hanselmann | "--ca=%s" % ca_file,
|
2826 | 1651d116 | Michael Hanselmann | ] |
2827 | 1651d116 | Michael Hanselmann | |
2828 | 1651d116 | Michael Hanselmann | if host:
|
2829 | 1651d116 | Michael Hanselmann | cmd.append("--host=%s" % host)
|
2830 | 1651d116 | Michael Hanselmann | |
2831 | 1651d116 | Michael Hanselmann | if port:
|
2832 | 1651d116 | Michael Hanselmann | cmd.append("--port=%s" % port)
|
2833 | 1651d116 | Michael Hanselmann | |
2834 | a5310c2a | Michael Hanselmann | if opts.compress:
|
2835 | a5310c2a | Michael Hanselmann | cmd.append("--compress=%s" % opts.compress)
|
2836 | a5310c2a | Michael Hanselmann | |
2837 | af1d39b1 | Michael Hanselmann | if opts.magic:
|
2838 | af1d39b1 | Michael Hanselmann | cmd.append("--magic=%s" % opts.magic)
|
2839 | af1d39b1 | Michael Hanselmann | |
2840 | 2ad5550d | Michael Hanselmann | if exp_size is not None: |
2841 | 2ad5550d | Michael Hanselmann | cmd.append("--expected-size=%s" % exp_size)
|
2842 | 2ad5550d | Michael Hanselmann | |
2843 | 1651d116 | Michael Hanselmann | if cmd_prefix:
|
2844 | 1651d116 | Michael Hanselmann | cmd.append("--cmd-prefix=%s" % cmd_prefix)
|
2845 | 1651d116 | Michael Hanselmann | |
2846 | 1651d116 | Michael Hanselmann | if cmd_suffix:
|
2847 | 1651d116 | Michael Hanselmann | cmd.append("--cmd-suffix=%s" % cmd_suffix)
|
2848 | 1651d116 | Michael Hanselmann | |
2849 | 1651d116 | Michael Hanselmann | logfile = _InstanceLogName(prefix, instance.os, instance.name) |
2850 | 1651d116 | Michael Hanselmann | |
2851 | 1651d116 | Michael Hanselmann | # TODO: Once _InstanceLogName uses tempfile.mkstemp, StartDaemon has
|
2852 | 1651d116 | Michael Hanselmann | # support for receiving a file descriptor for output
|
2853 | 1651d116 | Michael Hanselmann | utils.StartDaemon(cmd, env=cmd_env, pidfile=pid_file, |
2854 | 1651d116 | Michael Hanselmann | output=logfile) |
2855 | 1651d116 | Michael Hanselmann | |
2856 | 1651d116 | Michael Hanselmann | # The import/export name is simply the status directory name
|
2857 | 1651d116 | Michael Hanselmann | return os.path.basename(status_dir)
|
2858 | 1651d116 | Michael Hanselmann | |
2859 | 1651d116 | Michael Hanselmann | except Exception: |
2860 | 1651d116 | Michael Hanselmann | shutil.rmtree(status_dir, ignore_errors=True)
|
2861 | 1651d116 | Michael Hanselmann | raise
|
2862 | 1651d116 | Michael Hanselmann | |
2863 | 1651d116 | Michael Hanselmann | |
2864 | 1651d116 | Michael Hanselmann | def GetImportExportStatus(names): |
2865 | 1651d116 | Michael Hanselmann | """Returns import/export daemon status.
|
2866 | 1651d116 | Michael Hanselmann |
|
2867 | 1651d116 | Michael Hanselmann | @type names: sequence
|
2868 | 1651d116 | Michael Hanselmann | @param names: List of names
|
2869 | 1651d116 | Michael Hanselmann | @rtype: List of dicts
|
2870 | 1651d116 | Michael Hanselmann | @return: Returns a list of the state of each named import/export or None if a
|
2871 | 1651d116 | Michael Hanselmann | status couldn't be read
|
2872 | 1651d116 | Michael Hanselmann |
|
2873 | 1651d116 | Michael Hanselmann | """
|
2874 | 1651d116 | Michael Hanselmann | result = [] |
2875 | 1651d116 | Michael Hanselmann | |
2876 | 1651d116 | Michael Hanselmann | for name in names: |
2877 | 1651d116 | Michael Hanselmann | status_file = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name, |
2878 | 1651d116 | Michael Hanselmann | _IES_STATUS_FILE) |
2879 | 1651d116 | Michael Hanselmann | |
2880 | 1651d116 | Michael Hanselmann | try:
|
2881 | 1651d116 | Michael Hanselmann | data = utils.ReadFile(status_file) |
2882 | 1651d116 | Michael Hanselmann | except EnvironmentError, err: |
2883 | 1651d116 | Michael Hanselmann | if err.errno != errno.ENOENT:
|
2884 | 1651d116 | Michael Hanselmann | raise
|
2885 | 1651d116 | Michael Hanselmann | data = None
|
2886 | 1651d116 | Michael Hanselmann | |
2887 | 1651d116 | Michael Hanselmann | if not data: |
2888 | 1651d116 | Michael Hanselmann | result.append(None)
|
2889 | 1651d116 | Michael Hanselmann | continue
|
2890 | 1651d116 | Michael Hanselmann | |
2891 | 1651d116 | Michael Hanselmann | result.append(serializer.LoadJson(data)) |
2892 | 1651d116 | Michael Hanselmann | |
2893 | 1651d116 | Michael Hanselmann | return result
|
2894 | 1651d116 | Michael Hanselmann | |
2895 | 1651d116 | Michael Hanselmann | |
2896 | f81c4737 | Michael Hanselmann | def AbortImportExport(name): |
2897 | f81c4737 | Michael Hanselmann | """Sends SIGTERM to a running import/export daemon.
|
2898 | f81c4737 | Michael Hanselmann |
|
2899 | f81c4737 | Michael Hanselmann | """
|
2900 | f81c4737 | Michael Hanselmann | logging.info("Abort import/export %s", name)
|
2901 | f81c4737 | Michael Hanselmann | |
2902 | f81c4737 | Michael Hanselmann | status_dir = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name) |
2903 | f81c4737 | Michael Hanselmann | pid = utils.ReadLockedPidFile(utils.PathJoin(status_dir, _IES_PID_FILE)) |
2904 | f81c4737 | Michael Hanselmann | |
2905 | f81c4737 | Michael Hanselmann | if pid:
|
2906 | f81c4737 | Michael Hanselmann | logging.info("Import/export %s is running with PID %s, sending SIGTERM",
|
2907 | f81c4737 | Michael Hanselmann | name, pid) |
2908 | 560cbec1 | Michael Hanselmann | utils.IgnoreProcessNotFound(os.kill, pid, signal.SIGTERM) |
2909 | f81c4737 | Michael Hanselmann | |
2910 | f81c4737 | Michael Hanselmann | |
2911 | 1651d116 | Michael Hanselmann | def CleanupImportExport(name): |
2912 | 1651d116 | Michael Hanselmann | """Cleanup after an import or export.
|
2913 | 1651d116 | Michael Hanselmann |
|
2914 | 1651d116 | Michael Hanselmann | If the import/export daemon is still running it's killed. Afterwards the
|
2915 | 1651d116 | Michael Hanselmann | whole status directory is removed.
|
2916 | 1651d116 | Michael Hanselmann |
|
2917 | 1651d116 | Michael Hanselmann | """
|
2918 | 1651d116 | Michael Hanselmann | logging.info("Finalizing import/export %s", name)
|
2919 | 1651d116 | Michael Hanselmann | |
2920 | 1651d116 | Michael Hanselmann | status_dir = utils.PathJoin(constants.IMPORT_EXPORT_DIR, name) |
2921 | 1651d116 | Michael Hanselmann | |
2922 | debed9ae | Michael Hanselmann | pid = utils.ReadLockedPidFile(utils.PathJoin(status_dir, _IES_PID_FILE)) |
2923 | 1651d116 | Michael Hanselmann | |
2924 | 1651d116 | Michael Hanselmann | if pid:
|
2925 | 1651d116 | Michael Hanselmann | logging.info("Import/export %s is still running with PID %s",
|
2926 | 1651d116 | Michael Hanselmann | name, pid) |
2927 | 1651d116 | Michael Hanselmann | utils.KillProcess(pid, waitpid=False)
|
2928 | 1651d116 | Michael Hanselmann | |
2929 | 1651d116 | Michael Hanselmann | shutil.rmtree(status_dir, ignore_errors=True)
|
2930 | 1651d116 | Michael Hanselmann | |
2931 | 1651d116 | Michael Hanselmann | |
2932 | 6b93ec9d | Iustin Pop | def _FindDisks(nodes_ip, disks): |
2933 | 6b93ec9d | Iustin Pop | """Sets the physical ID on disks and returns the block devices.
|
2934 | 6b93ec9d | Iustin Pop |
|
2935 | 6b93ec9d | Iustin Pop | """
|
2936 | 6b93ec9d | Iustin Pop | # set the correct physical ID
|
2937 | 6b93ec9d | Iustin Pop | my_name = utils.HostInfo().name |
2938 | 6b93ec9d | Iustin Pop | for cf in disks: |
2939 | 6b93ec9d | Iustin Pop | cf.SetPhysicalID(my_name, nodes_ip) |
2940 | 6b93ec9d | Iustin Pop | |
2941 | 6b93ec9d | Iustin Pop | bdevs = [] |
2942 | 6b93ec9d | Iustin Pop | |
2943 | 6b93ec9d | Iustin Pop | for cf in disks: |
2944 | 6b93ec9d | Iustin Pop | rd = _RecursiveFindBD(cf) |
2945 | 6b93ec9d | Iustin Pop | if rd is None: |
2946 | 5a533f8a | Iustin Pop | _Fail("Can't find device %s", cf)
|
2947 | 6b93ec9d | Iustin Pop | bdevs.append(rd) |
2948 | 5a533f8a | Iustin Pop | return bdevs
|
2949 | 6b93ec9d | Iustin Pop | |
2950 | 6b93ec9d | Iustin Pop | |
2951 | 6b93ec9d | Iustin Pop | def DrbdDisconnectNet(nodes_ip, disks): |
2952 | 6b93ec9d | Iustin Pop | """Disconnects the network on a list of drbd devices.
|
2953 | 6b93ec9d | Iustin Pop |
|
2954 | 6b93ec9d | Iustin Pop | """
|
2955 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
2956 | 6b93ec9d | Iustin Pop | |
2957 | 6b93ec9d | Iustin Pop | # disconnect disks
|
2958 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
2959 | 6b93ec9d | Iustin Pop | try:
|
2960 | 6b93ec9d | Iustin Pop | rd.DisconnectNet() |
2961 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
2962 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration to standalone mode: %s",
|
2963 | 2cc6781a | Iustin Pop | err, exc=True)
|
2964 | 6b93ec9d | Iustin Pop | |
2965 | 6b93ec9d | Iustin Pop | |
2966 | 6b93ec9d | Iustin Pop | def DrbdAttachNet(nodes_ip, disks, instance_name, multimaster): |
2967 | 6b93ec9d | Iustin Pop | """Attaches the network on a list of drbd devices.
|
2968 | 6b93ec9d | Iustin Pop |
|
2969 | 6b93ec9d | Iustin Pop | """
|
2970 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
2971 | 6b93ec9d | Iustin Pop | |
2972 | 6b93ec9d | Iustin Pop | if multimaster:
|
2973 | 53c776b5 | Iustin Pop | for idx, rd in enumerate(bdevs): |
2974 | 6b93ec9d | Iustin Pop | try:
|
2975 | 53c776b5 | Iustin Pop | _SymlinkBlockDev(instance_name, rd.dev_path, idx) |
2976 | 6b93ec9d | Iustin Pop | except EnvironmentError, err: |
2977 | 2cc6781a | Iustin Pop | _Fail("Can't create symlink: %s", err)
|
2978 | 6b93ec9d | Iustin Pop | # reconnect disks, switch to new master configuration and if
|
2979 | 6b93ec9d | Iustin Pop | # needed primary mode
|
2980 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
2981 | 6b93ec9d | Iustin Pop | try:
|
2982 | 6b93ec9d | Iustin Pop | rd.AttachNet(multimaster) |
2983 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
2984 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration: %s", err)
|
2985 | 3c0cdc83 | Michael Hanselmann | |
2986 | 6b93ec9d | Iustin Pop | # wait until the disks are connected; we need to retry the re-attach
|
2987 | 6b93ec9d | Iustin Pop | # if the device becomes standalone, as this might happen if the one
|
2988 | 6b93ec9d | Iustin Pop | # node disconnects and reconnects in a different mode before the
|
2989 | 6b93ec9d | Iustin Pop | # other node reconnects; in this case, one or both of the nodes will
|
2990 | 6b93ec9d | Iustin Pop | # decide it has wrong configuration and switch to standalone
|
2991 | 3c0cdc83 | Michael Hanselmann | |
2992 | 3c0cdc83 | Michael Hanselmann | def _Attach(): |
2993 | 6b93ec9d | Iustin Pop | all_connected = True
|
2994 | 3c0cdc83 | Michael Hanselmann | |
2995 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
2996 | 6b93ec9d | Iustin Pop | stats = rd.GetProcStatus() |
2997 | 3c0cdc83 | Michael Hanselmann | |
2998 | 3c0cdc83 | Michael Hanselmann | all_connected = (all_connected and
|
2999 | 3c0cdc83 | Michael Hanselmann | (stats.is_connected or stats.is_in_resync))
|
3000 | 3c0cdc83 | Michael Hanselmann | |
3001 | 6b93ec9d | Iustin Pop | if stats.is_standalone:
|
3002 | 6b93ec9d | Iustin Pop | # peer had different config info and this node became
|
3003 | 6b93ec9d | Iustin Pop | # standalone, even though this should not happen with the
|
3004 | 6b93ec9d | Iustin Pop | # new staged way of changing disk configs
|
3005 | 6b93ec9d | Iustin Pop | try:
|
3006 | c738375b | Iustin Pop | rd.AttachNet(multimaster) |
3007 | 6b93ec9d | Iustin Pop | except errors.BlockDeviceError, err:
|
3008 | 2cc6781a | Iustin Pop | _Fail("Can't change network configuration: %s", err)
|
3009 | 3c0cdc83 | Michael Hanselmann | |
3010 | 3c0cdc83 | Michael Hanselmann | if not all_connected: |
3011 | 3c0cdc83 | Michael Hanselmann | raise utils.RetryAgain()
|
3012 | 3c0cdc83 | Michael Hanselmann | |
3013 | 3c0cdc83 | Michael Hanselmann | try:
|
3014 | 3c0cdc83 | Michael Hanselmann | # Start with a delay of 100 miliseconds and go up to 5 seconds
|
3015 | 3c0cdc83 | Michael Hanselmann | utils.Retry(_Attach, (0.1, 1.5, 5.0), 2 * 60) |
3016 | 3c0cdc83 | Michael Hanselmann | except utils.RetryTimeout:
|
3017 | afdc3985 | Iustin Pop | _Fail("Timeout in disk reconnecting")
|
3018 | 3c0cdc83 | Michael Hanselmann | |
3019 | 6b93ec9d | Iustin Pop | if multimaster:
|
3020 | 6b93ec9d | Iustin Pop | # change to primary mode
|
3021 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3022 | d3da87b8 | Iustin Pop | try:
|
3023 | d3da87b8 | Iustin Pop | rd.Open() |
3024 | d3da87b8 | Iustin Pop | except errors.BlockDeviceError, err:
|
3025 | 2cc6781a | Iustin Pop | _Fail("Can't change to primary mode: %s", err)
|
3026 | 6b93ec9d | Iustin Pop | |
3027 | 6b93ec9d | Iustin Pop | |
3028 | 6b93ec9d | Iustin Pop | def DrbdWaitSync(nodes_ip, disks): |
3029 | 6b93ec9d | Iustin Pop | """Wait until DRBDs have synchronized.
|
3030 | 6b93ec9d | Iustin Pop |
|
3031 | 6b93ec9d | Iustin Pop | """
|
3032 | db8667b7 | Iustin Pop | def _helper(rd): |
3033 | db8667b7 | Iustin Pop | stats = rd.GetProcStatus() |
3034 | db8667b7 | Iustin Pop | if not (stats.is_connected or stats.is_in_resync): |
3035 | db8667b7 | Iustin Pop | raise utils.RetryAgain()
|
3036 | db8667b7 | Iustin Pop | return stats
|
3037 | db8667b7 | Iustin Pop | |
3038 | 5a533f8a | Iustin Pop | bdevs = _FindDisks(nodes_ip, disks) |
3039 | 6b93ec9d | Iustin Pop | |
3040 | 6b93ec9d | Iustin Pop | min_resync = 100
|
3041 | 6b93ec9d | Iustin Pop | alldone = True
|
3042 | 6b93ec9d | Iustin Pop | for rd in bdevs: |
3043 | db8667b7 | Iustin Pop | try:
|
3044 | db8667b7 | Iustin Pop | # poll each second for 15 seconds
|
3045 | db8667b7 | Iustin Pop | stats = utils.Retry(_helper, 1, 15, args=[rd]) |
3046 | db8667b7 | Iustin Pop | except utils.RetryTimeout:
|
3047 | db8667b7 | Iustin Pop | stats = rd.GetProcStatus() |
3048 | db8667b7 | Iustin Pop | # last check
|
3049 | db8667b7 | Iustin Pop | if not (stats.is_connected or stats.is_in_resync): |
3050 | db8667b7 | Iustin Pop | _Fail("DRBD device %s is not in sync: stats=%s", rd, stats)
|
3051 | 6b93ec9d | Iustin Pop | alldone = alldone and (not stats.is_in_resync) |
3052 | 6b93ec9d | Iustin Pop | if stats.sync_percent is not None: |
3053 | 6b93ec9d | Iustin Pop | min_resync = min(min_resync, stats.sync_percent)
|
3054 | afdc3985 | Iustin Pop | |
3055 | c26a6bd2 | Iustin Pop | return (alldone, min_resync)
|
3056 | 6b93ec9d | Iustin Pop | |
3057 | 6b93ec9d | Iustin Pop | |
3058 | f5118ade | Iustin Pop | def PowercycleNode(hypervisor_type): |
3059 | f5118ade | Iustin Pop | """Hard-powercycle the node.
|
3060 | f5118ade | Iustin Pop |
|
3061 | f5118ade | Iustin Pop | Because we need to return first, and schedule the powercycle in the
|
3062 | f5118ade | Iustin Pop | background, we won't be able to report failures nicely.
|
3063 | f5118ade | Iustin Pop |
|
3064 | f5118ade | Iustin Pop | """
|
3065 | f5118ade | Iustin Pop | hyper = hypervisor.GetHypervisor(hypervisor_type) |
3066 | f5118ade | Iustin Pop | try:
|
3067 | f5118ade | Iustin Pop | pid = os.fork() |
3068 | 29921401 | Iustin Pop | except OSError: |
3069 | f5118ade | Iustin Pop | # if we can't fork, we'll pretend that we're in the child process
|
3070 | f5118ade | Iustin Pop | pid = 0
|
3071 | f5118ade | Iustin Pop | if pid > 0: |
3072 | c26a6bd2 | Iustin Pop | return "Reboot scheduled in 5 seconds" |
3073 | 1af6ac0f | Luca Bigliardi | # ensure the child is running on ram
|
3074 | 1af6ac0f | Luca Bigliardi | try:
|
3075 | 1af6ac0f | Luca Bigliardi | utils.Mlockall() |
3076 | 20601361 | Luca Bigliardi | except Exception: # pylint: disable-msg=W0703 |
3077 | 1af6ac0f | Luca Bigliardi | pass
|
3078 | f5118ade | Iustin Pop | time.sleep(5)
|
3079 | f5118ade | Iustin Pop | hyper.PowercycleNode() |
3080 | f5118ade | Iustin Pop | |
3081 | f5118ade | Iustin Pop | |
3082 | a8083063 | Iustin Pop | class HooksRunner(object): |
3083 | a8083063 | Iustin Pop | """Hook runner.
|
3084 | a8083063 | Iustin Pop |
|
3085 | 10c2650b | Iustin Pop | This class is instantiated on the node side (ganeti-noded) and not
|
3086 | 10c2650b | Iustin Pop | on the master side.
|
3087 | a8083063 | Iustin Pop |
|
3088 | a8083063 | Iustin Pop | """
|
3089 | a8083063 | Iustin Pop | def __init__(self, hooks_base_dir=None): |
3090 | a8083063 | Iustin Pop | """Constructor for hooks runner.
|
3091 | a8083063 | Iustin Pop |
|
3092 | 10c2650b | Iustin Pop | @type hooks_base_dir: str or None
|
3093 | 10c2650b | Iustin Pop | @param hooks_base_dir: if not None, this overrides the
|
3094 | 10c2650b | Iustin Pop | L{constants.HOOKS_BASE_DIR} (useful for unittests)
|
3095 | a8083063 | Iustin Pop |
|
3096 | a8083063 | Iustin Pop | """
|
3097 | a8083063 | Iustin Pop | if hooks_base_dir is None: |
3098 | a8083063 | Iustin Pop | hooks_base_dir = constants.HOOKS_BASE_DIR |
3099 | fe267188 | Iustin Pop | # yeah, _BASE_DIR is not valid for attributes, we use it like a
|
3100 | fe267188 | Iustin Pop | # constant
|
3101 | fe267188 | Iustin Pop | self._BASE_DIR = hooks_base_dir # pylint: disable-msg=C0103 |
3102 | a8083063 | Iustin Pop | |
3103 | a8083063 | Iustin Pop | def RunHooks(self, hpath, phase, env): |
3104 | a8083063 | Iustin Pop | """Run the scripts in the hooks directory.
|
3105 | a8083063 | Iustin Pop |
|
3106 | 10c2650b | Iustin Pop | @type hpath: str
|
3107 | 10c2650b | Iustin Pop | @param hpath: the path to the hooks directory which
|
3108 | 10c2650b | Iustin Pop | holds the scripts
|
3109 | 10c2650b | Iustin Pop | @type phase: str
|
3110 | 10c2650b | Iustin Pop | @param phase: either L{constants.HOOKS_PHASE_PRE} or
|
3111 | 10c2650b | Iustin Pop | L{constants.HOOKS_PHASE_POST}
|
3112 | 10c2650b | Iustin Pop | @type env: dict
|
3113 | 10c2650b | Iustin Pop | @param env: dictionary with the environment for the hook
|
3114 | 10c2650b | Iustin Pop | @rtype: list
|
3115 | 10c2650b | Iustin Pop | @return: list of 3-element tuples:
|
3116 | 10c2650b | Iustin Pop | - script path
|
3117 | 10c2650b | Iustin Pop | - script result, either L{constants.HKR_SUCCESS} or
|
3118 | 10c2650b | Iustin Pop | L{constants.HKR_FAIL}
|
3119 | 10c2650b | Iustin Pop | - output of the script
|
3120 | 10c2650b | Iustin Pop |
|
3121 | 10c2650b | Iustin Pop | @raise errors.ProgrammerError: for invalid input
|
3122 | 10c2650b | Iustin Pop | parameters
|
3123 | a8083063 | Iustin Pop |
|
3124 | a8083063 | Iustin Pop | """
|
3125 | a8083063 | Iustin Pop | if phase == constants.HOOKS_PHASE_PRE:
|
3126 | a8083063 | Iustin Pop | suffix = "pre"
|
3127 | a8083063 | Iustin Pop | elif phase == constants.HOOKS_PHASE_POST:
|
3128 | a8083063 | Iustin Pop | suffix = "post"
|
3129 | a8083063 | Iustin Pop | else:
|
3130 | 3fb4f740 | Iustin Pop | _Fail("Unknown hooks phase '%s'", phase)
|
3131 | 3fb4f740 | Iustin Pop | |
3132 | a8083063 | Iustin Pop | |
3133 | a8083063 | Iustin Pop | subdir = "%s-%s.d" % (hpath, suffix)
|
3134 | 0411c011 | Iustin Pop | dir_name = utils.PathJoin(self._BASE_DIR, subdir)
|
3135 | 6bb65e3a | Guido Trotter | |
3136 | 6bb65e3a | Guido Trotter | results = [] |
3137 | a9b7e346 | Iustin Pop | |
3138 | a9b7e346 | Iustin Pop | if not os.path.isdir(dir_name): |
3139 | a9b7e346 | Iustin Pop | # for non-existing/non-dirs, we simply exit instead of logging a
|
3140 | a9b7e346 | Iustin Pop | # warning at every operation
|
3141 | a9b7e346 | Iustin Pop | return results
|
3142 | a9b7e346 | Iustin Pop | |
3143 | a9b7e346 | Iustin Pop | runparts_results = utils.RunParts(dir_name, env=env, reset_env=True)
|
3144 | a9b7e346 | Iustin Pop | |
3145 | 6bb65e3a | Guido Trotter | for (relname, relstatus, runresult) in runparts_results: |
3146 | 6bb65e3a | Guido Trotter | if relstatus == constants.RUNPARTS_SKIP:
|
3147 | a8083063 | Iustin Pop | rrval = constants.HKR_SKIP |
3148 | a8083063 | Iustin Pop | output = ""
|
3149 | 6bb65e3a | Guido Trotter | elif relstatus == constants.RUNPARTS_ERR:
|
3150 | 6bb65e3a | Guido Trotter | rrval = constants.HKR_FAIL |
3151 | 6bb65e3a | Guido Trotter | output = "Hook script execution error: %s" % runresult
|
3152 | 6bb65e3a | Guido Trotter | elif relstatus == constants.RUNPARTS_RUN:
|
3153 | 6bb65e3a | Guido Trotter | if runresult.failed:
|
3154 | a8083063 | Iustin Pop | rrval = constants.HKR_FAIL |
3155 | a8083063 | Iustin Pop | else:
|
3156 | 6bb65e3a | Guido Trotter | rrval = constants.HKR_SUCCESS |
3157 | 6bb65e3a | Guido Trotter | output = utils.SafeEncode(runresult.output.strip()) |
3158 | 6bb65e3a | Guido Trotter | results.append(("%s/%s" % (subdir, relname), rrval, output))
|
3159 | 6bb65e3a | Guido Trotter | |
3160 | 6bb65e3a | Guido Trotter | return results
|
3161 | 3f78eef2 | Iustin Pop | |
3162 | 3f78eef2 | Iustin Pop | |
3163 | 8d528b7c | Iustin Pop | class IAllocatorRunner(object): |
3164 | 8d528b7c | Iustin Pop | """IAllocator runner.
|
3165 | 8d528b7c | Iustin Pop |
|
3166 | 8d528b7c | Iustin Pop | This class is instantiated on the node side (ganeti-noded) and not on
|
3167 | 8d528b7c | Iustin Pop | the master side.
|
3168 | 8d528b7c | Iustin Pop |
|
3169 | 8d528b7c | Iustin Pop | """
|
3170 | 7e950d31 | Iustin Pop | @staticmethod
|
3171 | 7e950d31 | Iustin Pop | def Run(name, idata): |
3172 | 8d528b7c | Iustin Pop | """Run an iallocator script.
|
3173 | 8d528b7c | Iustin Pop |
|
3174 | 10c2650b | Iustin Pop | @type name: str
|
3175 | 10c2650b | Iustin Pop | @param name: the iallocator script name
|
3176 | 10c2650b | Iustin Pop | @type idata: str
|
3177 | 10c2650b | Iustin Pop | @param idata: the allocator input data
|
3178 | 10c2650b | Iustin Pop |
|
3179 | 10c2650b | Iustin Pop | @rtype: tuple
|
3180 | 87f5c298 | Iustin Pop | @return: two element tuple of:
|
3181 | 87f5c298 | Iustin Pop | - status
|
3182 | 87f5c298 | Iustin Pop | - either error message or stdout of allocator (for success)
|
3183 | 8d528b7c | Iustin Pop |
|
3184 | 8d528b7c | Iustin Pop | """
|
3185 | 8d528b7c | Iustin Pop | alloc_script = utils.FindFile(name, constants.IALLOCATOR_SEARCH_PATH, |
3186 | 8d528b7c | Iustin Pop | os.path.isfile) |
3187 | 8d528b7c | Iustin Pop | if alloc_script is None: |
3188 | 87f5c298 | Iustin Pop | _Fail("iallocator module '%s' not found in the search path", name)
|
3189 | 8d528b7c | Iustin Pop | |
3190 | 8d528b7c | Iustin Pop | fd, fin_name = tempfile.mkstemp(prefix="ganeti-iallocator.")
|
3191 | 8d528b7c | Iustin Pop | try:
|
3192 | 8d528b7c | Iustin Pop | os.write(fd, idata) |
3193 | 8d528b7c | Iustin Pop | os.close(fd) |
3194 | 8d528b7c | Iustin Pop | result = utils.RunCmd([alloc_script, fin_name]) |
3195 | 8d528b7c | Iustin Pop | if result.failed:
|
3196 | 87f5c298 | Iustin Pop | _Fail("iallocator module '%s' failed: %s, output '%s'",
|
3197 | 87f5c298 | Iustin Pop | name, result.fail_reason, result.output) |
3198 | 8d528b7c | Iustin Pop | finally:
|
3199 | 8d528b7c | Iustin Pop | os.unlink(fin_name) |
3200 | 8d528b7c | Iustin Pop | |
3201 | c26a6bd2 | Iustin Pop | return result.stdout
|
3202 | 8d528b7c | Iustin Pop | |
3203 | 8d528b7c | Iustin Pop | |
3204 | 3f78eef2 | Iustin Pop | class DevCacheManager(object): |
3205 | c99a3cc0 | Manuel Franceschini | """Simple class for managing a cache of block device information.
|
3206 | 3f78eef2 | Iustin Pop |
|
3207 | 3f78eef2 | Iustin Pop | """
|
3208 | 3f78eef2 | Iustin Pop | _DEV_PREFIX = "/dev/"
|
3209 | 3f78eef2 | Iustin Pop | _ROOT_DIR = constants.BDEV_CACHE_DIR |
3210 | 3f78eef2 | Iustin Pop | |
3211 | 3f78eef2 | Iustin Pop | @classmethod
|
3212 | 3f78eef2 | Iustin Pop | def _ConvertPath(cls, dev_path): |
3213 | 3f78eef2 | Iustin Pop | """Converts a /dev/name path to the cache file name.
|
3214 | 3f78eef2 | Iustin Pop |
|
3215 | 3f78eef2 | Iustin Pop | This replaces slashes with underscores and strips the /dev
|
3216 | 10c2650b | Iustin Pop | prefix. It then returns the full path to the cache file.
|
3217 | 10c2650b | Iustin Pop |
|
3218 | 10c2650b | Iustin Pop | @type dev_path: str
|
3219 | 10c2650b | Iustin Pop | @param dev_path: the C{/dev/} path name
|
3220 | 10c2650b | Iustin Pop | @rtype: str
|
3221 | 10c2650b | Iustin Pop | @return: the converted path name
|
3222 | 3f78eef2 | Iustin Pop |
|
3223 | 3f78eef2 | Iustin Pop | """
|
3224 | 3f78eef2 | Iustin Pop | if dev_path.startswith(cls._DEV_PREFIX):
|
3225 | 3f78eef2 | Iustin Pop | dev_path = dev_path[len(cls._DEV_PREFIX):]
|
3226 | 3f78eef2 | Iustin Pop | dev_path = dev_path.replace("/", "_") |
3227 | 0411c011 | Iustin Pop | fpath = utils.PathJoin(cls._ROOT_DIR, "bdev_%s" % dev_path)
|
3228 | 3f78eef2 | Iustin Pop | return fpath
|
3229 | 3f78eef2 | Iustin Pop | |
3230 | 3f78eef2 | Iustin Pop | @classmethod
|
3231 | 3f78eef2 | Iustin Pop | def UpdateCache(cls, dev_path, owner, on_primary, iv_name): |
3232 | 3f78eef2 | Iustin Pop | """Updates the cache information for a given device.
|
3233 | 3f78eef2 | Iustin Pop |
|
3234 | 10c2650b | Iustin Pop | @type dev_path: str
|
3235 | 10c2650b | Iustin Pop | @param dev_path: the pathname of the device
|
3236 | 10c2650b | Iustin Pop | @type owner: str
|
3237 | 10c2650b | Iustin Pop | @param owner: the owner (instance name) of the device
|
3238 | 10c2650b | Iustin Pop | @type on_primary: bool
|
3239 | 10c2650b | Iustin Pop | @param on_primary: whether this is the primary
|
3240 | 10c2650b | Iustin Pop | node nor not
|
3241 | 10c2650b | Iustin Pop | @type iv_name: str
|
3242 | 10c2650b | Iustin Pop | @param iv_name: the instance-visible name of the
|
3243 | c41eea6e | Iustin Pop | device, as in objects.Disk.iv_name
|
3244 | 10c2650b | Iustin Pop |
|
3245 | 10c2650b | Iustin Pop | @rtype: None
|
3246 | 10c2650b | Iustin Pop |
|
3247 | 3f78eef2 | Iustin Pop | """
|
3248 | cf5a8306 | Iustin Pop | if dev_path is None: |
3249 | 18682bca | Iustin Pop | logging.error("DevCacheManager.UpdateCache got a None dev_path")
|
3250 | cf5a8306 | Iustin Pop | return
|
3251 | 3f78eef2 | Iustin Pop | fpath = cls._ConvertPath(dev_path) |
3252 | 3f78eef2 | Iustin Pop | if on_primary:
|
3253 | 3f78eef2 | Iustin Pop | state = "primary"
|
3254 | 3f78eef2 | Iustin Pop | else:
|
3255 | 3f78eef2 | Iustin Pop | state = "secondary"
|
3256 | 3f78eef2 | Iustin Pop | if iv_name is None: |
3257 | 3f78eef2 | Iustin Pop | iv_name = "not_visible"
|
3258 | 3f78eef2 | Iustin Pop | fdata = "%s %s %s\n" % (str(owner), state, iv_name) |
3259 | 3f78eef2 | Iustin Pop | try:
|
3260 | 3f78eef2 | Iustin Pop | utils.WriteFile(fpath, data=fdata) |
3261 | 3f78eef2 | Iustin Pop | except EnvironmentError, err: |
3262 | 29921401 | Iustin Pop | logging.exception("Can't update bdev cache for %s: %s", dev_path, err)
|
3263 | 3f78eef2 | Iustin Pop | |
3264 | 3f78eef2 | Iustin Pop | @classmethod
|
3265 | 3f78eef2 | Iustin Pop | def RemoveCache(cls, dev_path): |
3266 | 3f78eef2 | Iustin Pop | """Remove data for a dev_path.
|
3267 | 3f78eef2 | Iustin Pop |
|
3268 | 10c2650b | Iustin Pop | This is just a wrapper over L{utils.RemoveFile} with a converted
|
3269 | 10c2650b | Iustin Pop | path name and logging.
|
3270 | 10c2650b | Iustin Pop |
|
3271 | 10c2650b | Iustin Pop | @type dev_path: str
|
3272 | 10c2650b | Iustin Pop | @param dev_path: the pathname of the device
|
3273 | 10c2650b | Iustin Pop |
|
3274 | 10c2650b | Iustin Pop | @rtype: None
|
3275 | 10c2650b | Iustin Pop |
|
3276 | 3f78eef2 | Iustin Pop | """
|
3277 | cf5a8306 | Iustin Pop | if dev_path is None: |
3278 | 18682bca | Iustin Pop | logging.error("DevCacheManager.RemoveCache got a None dev_path")
|
3279 | cf5a8306 | Iustin Pop | return
|
3280 | 3f78eef2 | Iustin Pop | fpath = cls._ConvertPath(dev_path) |
3281 | 3f78eef2 | Iustin Pop | try:
|
3282 | 3f78eef2 | Iustin Pop | utils.RemoveFile(fpath) |
3283 | 3f78eef2 | Iustin Pop | except EnvironmentError, err: |
3284 | 29921401 | Iustin Pop | logging.exception("Can't update bdev cache for %s: %s", dev_path, err) |