root / lib / config.py @ a01225a6
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1 | 2f31098c | Iustin Pop | #
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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | 075b62ca | Iustin Pop | # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | a8083063 | Iustin Pop | """Configuration management for Ganeti
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23 | a8083063 | Iustin Pop |
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24 | 319856a9 | Michael Hanselmann | This module provides the interface to the Ganeti cluster configuration.
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25 | a8083063 | Iustin Pop |
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26 | 319856a9 | Michael Hanselmann | The configuration data is stored on every node but is updated on the master
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27 | 319856a9 | Michael Hanselmann | only. After each update, the master distributes the data to the other nodes.
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28 | a8083063 | Iustin Pop |
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29 | 319856a9 | Michael Hanselmann | Currently, the data storage format is JSON. YAML was slow and consuming too
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30 | 319856a9 | Michael Hanselmann | much memory.
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31 | a8083063 | Iustin Pop |
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32 | a8083063 | Iustin Pop | """
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33 | a8083063 | Iustin Pop | |
34 | d367b66c | Manuel Franceschini | # pylint: disable-msg=R0904
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35 | d367b66c | Manuel Franceschini | # R0904: Too many public methods
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36 | d367b66c | Manuel Franceschini | |
37 | a8083063 | Iustin Pop | import os |
38 | a8083063 | Iustin Pop | import random |
39 | d8470559 | Michael Hanselmann | import logging |
40 | d693c864 | Iustin Pop | import time |
41 | a8083063 | Iustin Pop | |
42 | a8083063 | Iustin Pop | from ganeti import errors |
43 | f78ede4e | Guido Trotter | from ganeti import locking |
44 | a8083063 | Iustin Pop | from ganeti import utils |
45 | a8083063 | Iustin Pop | from ganeti import constants |
46 | a8083063 | Iustin Pop | from ganeti import rpc |
47 | a8083063 | Iustin Pop | from ganeti import objects |
48 | 8d14b30d | Iustin Pop | from ganeti import serializer |
49 | 0fbae49a | Balazs Lecz | from ganeti import uidpool |
50 | a744b676 | Manuel Franceschini | from ganeti import netutils |
51 | e60c73a1 | René Nussbaumer | from ganeti import runtime |
52 | 243cdbcc | Michael Hanselmann | |
53 | 243cdbcc | Michael Hanselmann | |
54 | 7f93570a | Iustin Pop | _config_lock = locking.SharedLock("ConfigWriter")
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55 | f78ede4e | Guido Trotter | |
56 | 4fae38c5 | Guido Trotter | # job id used for resource management at config upgrade time
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57 | 8d9c3bef | Michael Hanselmann | _UPGRADE_CONFIG_JID = "jid-cfg-upgrade"
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58 | 4fae38c5 | Guido Trotter | |
59 | f78ede4e | Guido Trotter | |
60 | 5b263ed7 | Michael Hanselmann | def _ValidateConfig(data): |
61 | c41eea6e | Iustin Pop | """Verifies that a configuration objects looks valid.
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62 | c41eea6e | Iustin Pop |
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63 | c41eea6e | Iustin Pop | This only verifies the version of the configuration.
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64 | c41eea6e | Iustin Pop |
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65 | c41eea6e | Iustin Pop | @raise errors.ConfigurationError: if the version differs from what
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66 | c41eea6e | Iustin Pop | we expect
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67 | c41eea6e | Iustin Pop |
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68 | c41eea6e | Iustin Pop | """
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69 | 5b263ed7 | Michael Hanselmann | if data.version != constants.CONFIG_VERSION:
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70 | 4b63dc7a | Iustin Pop | raise errors.ConfigVersionMismatch(constants.CONFIG_VERSION, data.version)
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71 | a8083063 | Iustin Pop | |
72 | 319856a9 | Michael Hanselmann | |
73 | 013da361 | Guido Trotter | class TemporaryReservationManager: |
74 | 013da361 | Guido Trotter | """A temporary resource reservation manager.
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75 | 013da361 | Guido Trotter |
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76 | 013da361 | Guido Trotter | This is used to reserve resources in a job, before using them, making sure
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77 | 013da361 | Guido Trotter | other jobs cannot get them in the meantime.
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78 | 013da361 | Guido Trotter |
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79 | 013da361 | Guido Trotter | """
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80 | 013da361 | Guido Trotter | def __init__(self): |
81 | 013da361 | Guido Trotter | self._ec_reserved = {}
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82 | 013da361 | Guido Trotter | |
83 | 013da361 | Guido Trotter | def Reserved(self, resource): |
84 | a7359d91 | David Knowles | for holder_reserved in self._ec_reserved.values(): |
85 | 013da361 | Guido Trotter | if resource in holder_reserved: |
86 | 013da361 | Guido Trotter | return True |
87 | 013da361 | Guido Trotter | return False |
88 | 013da361 | Guido Trotter | |
89 | 013da361 | Guido Trotter | def Reserve(self, ec_id, resource): |
90 | 013da361 | Guido Trotter | if self.Reserved(resource): |
91 | 28a7318f | Iustin Pop | raise errors.ReservationError("Duplicate reservation for resource '%s'" |
92 | 28a7318f | Iustin Pop | % str(resource))
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93 | 013da361 | Guido Trotter | if ec_id not in self._ec_reserved: |
94 | 013da361 | Guido Trotter | self._ec_reserved[ec_id] = set([resource]) |
95 | 013da361 | Guido Trotter | else:
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96 | 013da361 | Guido Trotter | self._ec_reserved[ec_id].add(resource)
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97 | 013da361 | Guido Trotter | |
98 | 013da361 | Guido Trotter | def DropECReservations(self, ec_id): |
99 | 013da361 | Guido Trotter | if ec_id in self._ec_reserved: |
100 | 013da361 | Guido Trotter | del self._ec_reserved[ec_id] |
101 | 013da361 | Guido Trotter | |
102 | 013da361 | Guido Trotter | def GetReserved(self): |
103 | 013da361 | Guido Trotter | all_reserved = set()
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104 | 013da361 | Guido Trotter | for holder_reserved in self._ec_reserved.values(): |
105 | 013da361 | Guido Trotter | all_reserved.update(holder_reserved) |
106 | 013da361 | Guido Trotter | return all_reserved
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107 | 013da361 | Guido Trotter | |
108 | 013da361 | Guido Trotter | def Generate(self, existing, generate_one_fn, ec_id): |
109 | 013da361 | Guido Trotter | """Generate a new resource of this type
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110 | 013da361 | Guido Trotter |
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111 | 013da361 | Guido Trotter | """
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112 | 013da361 | Guido Trotter | assert callable(generate_one_fn) |
113 | 013da361 | Guido Trotter | |
114 | 013da361 | Guido Trotter | all_elems = self.GetReserved()
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115 | 013da361 | Guido Trotter | all_elems.update(existing) |
116 | 013da361 | Guido Trotter | retries = 64
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117 | 013da361 | Guido Trotter | while retries > 0: |
118 | 013da361 | Guido Trotter | new_resource = generate_one_fn() |
119 | 013da361 | Guido Trotter | if new_resource is not None and new_resource not in all_elems: |
120 | 013da361 | Guido Trotter | break
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121 | 013da361 | Guido Trotter | else:
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122 | 013da361 | Guido Trotter | raise errors.ConfigurationError("Not able generate new resource" |
123 | 013da361 | Guido Trotter | " (last tried: %s)" % new_resource)
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124 | 013da361 | Guido Trotter | self.Reserve(ec_id, new_resource)
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125 | 013da361 | Guido Trotter | return new_resource
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126 | 013da361 | Guido Trotter | |
127 | 013da361 | Guido Trotter | |
128 | fe698b38 | Michael Hanselmann | def _MatchNameComponentIgnoreCase(short_name, names): |
129 | 3a93eebb | Michael Hanselmann | """Wrapper around L{utils.text.MatchNameComponent}.
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130 | fe698b38 | Michael Hanselmann |
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131 | fe698b38 | Michael Hanselmann | """
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132 | fe698b38 | Michael Hanselmann | return utils.MatchNameComponent(short_name, names, case_sensitive=False) |
133 | fe698b38 | Michael Hanselmann | |
134 | fe698b38 | Michael Hanselmann | |
135 | a8083063 | Iustin Pop | class ConfigWriter: |
136 | 098c0958 | Michael Hanselmann | """The interface to the cluster configuration.
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137 | a8083063 | Iustin Pop |
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138 | d8aee57e | Iustin Pop | @ivar _temporary_lvs: reservation manager for temporary LVs
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139 | d8aee57e | Iustin Pop | @ivar _all_rms: a list of all temporary reservation managers
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140 | d8aee57e | Iustin Pop |
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141 | 098c0958 | Michael Hanselmann | """
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142 | eb180fe2 | Iustin Pop | def __init__(self, cfg_file=None, offline=False, _getents=runtime.GetEnts, |
143 | eb180fe2 | Iustin Pop | accept_foreign=False):
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144 | 14e15659 | Iustin Pop | self.write_count = 0 |
145 | f78ede4e | Guido Trotter | self._lock = _config_lock
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146 | a8083063 | Iustin Pop | self._config_data = None |
147 | a8083063 | Iustin Pop | self._offline = offline
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148 | a8083063 | Iustin Pop | if cfg_file is None: |
149 | a8083063 | Iustin Pop | self._cfg_file = constants.CLUSTER_CONF_FILE
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150 | a8083063 | Iustin Pop | else:
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151 | a8083063 | Iustin Pop | self._cfg_file = cfg_file
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152 | e60c73a1 | René Nussbaumer | self._getents = _getents
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153 | 4fae38c5 | Guido Trotter | self._temporary_ids = TemporaryReservationManager()
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154 | a81c53c9 | Iustin Pop | self._temporary_drbds = {}
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155 | 36b66e6e | Guido Trotter | self._temporary_macs = TemporaryReservationManager()
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156 | afa1386e | Guido Trotter | self._temporary_secrets = TemporaryReservationManager()
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157 | d8aee57e | Iustin Pop | self._temporary_lvs = TemporaryReservationManager()
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158 | d8aee57e | Iustin Pop | self._all_rms = [self._temporary_ids, self._temporary_macs, |
159 | d8aee57e | Iustin Pop | self._temporary_secrets, self._temporary_lvs] |
160 | 89e1fc26 | Iustin Pop | # Note: in order to prevent errors when resolving our name in
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161 | 89e1fc26 | Iustin Pop | # _DistributeConfig, we compute it here once and reuse it; it's
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162 | 89e1fc26 | Iustin Pop | # better to raise an error before starting to modify the config
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163 | 89e1fc26 | Iustin Pop | # file than after it was modified
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164 | b705c7a6 | Manuel Franceschini | self._my_hostname = netutils.Hostname.GetSysName()
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165 | 3c7f6c44 | Iustin Pop | self._last_cluster_serial = -1 |
166 | bd407597 | Iustin Pop | self._cfg_id = None |
167 | eb180fe2 | Iustin Pop | self._OpenConfig(accept_foreign)
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168 | a8083063 | Iustin Pop | |
169 | a8083063 | Iustin Pop | # this method needs to be static, so that we can call it on the class
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170 | a8083063 | Iustin Pop | @staticmethod
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171 | a8083063 | Iustin Pop | def IsCluster(): |
172 | a8083063 | Iustin Pop | """Check if the cluster is configured.
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173 | a8083063 | Iustin Pop |
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174 | a8083063 | Iustin Pop | """
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175 | a8083063 | Iustin Pop | return os.path.exists(constants.CLUSTER_CONF_FILE)
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176 | a8083063 | Iustin Pop | |
177 | 36b66e6e | Guido Trotter | def _GenerateOneMAC(self): |
178 | 36b66e6e | Guido Trotter | """Generate one mac address
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179 | 36b66e6e | Guido Trotter |
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180 | 36b66e6e | Guido Trotter | """
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181 | 36b66e6e | Guido Trotter | prefix = self._config_data.cluster.mac_prefix
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182 | 36b66e6e | Guido Trotter | byte1 = random.randrange(0, 256) |
183 | 36b66e6e | Guido Trotter | byte2 = random.randrange(0, 256) |
184 | 36b66e6e | Guido Trotter | byte3 = random.randrange(0, 256) |
185 | 36b66e6e | Guido Trotter | mac = "%s:%02x:%02x:%02x" % (prefix, byte1, byte2, byte3)
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186 | 36b66e6e | Guido Trotter | return mac
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187 | 36b66e6e | Guido Trotter | |
188 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
189 | 5768e6a6 | René Nussbaumer | def GetNdParams(self, node): |
190 | 5768e6a6 | René Nussbaumer | """Get the node params populated with cluster defaults.
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191 | 5768e6a6 | René Nussbaumer |
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192 | 5768e6a6 | René Nussbaumer | @type node: L{object.Node}
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193 | 5768e6a6 | René Nussbaumer | @param node: The node we want to know the params for
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194 | 5768e6a6 | René Nussbaumer | @return: A dict with the filled in node params
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195 | 5768e6a6 | René Nussbaumer |
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196 | 5768e6a6 | René Nussbaumer | """
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197 | 5768e6a6 | René Nussbaumer | nodegroup = self._UnlockedGetNodeGroup(node.group)
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198 | 5768e6a6 | René Nussbaumer | return self._config_data.cluster.FillND(node, nodegroup) |
199 | 5768e6a6 | René Nussbaumer | |
200 | 5768e6a6 | René Nussbaumer | @locking.ssynchronized(_config_lock, shared=1) |
201 | 36b66e6e | Guido Trotter | def GenerateMAC(self, ec_id): |
202 | a8083063 | Iustin Pop | """Generate a MAC for an instance.
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203 | a8083063 | Iustin Pop |
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204 | a8083063 | Iustin Pop | This should check the current instances for duplicates.
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205 | a8083063 | Iustin Pop |
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206 | a8083063 | Iustin Pop | """
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207 | 36b66e6e | Guido Trotter | existing = self._AllMACs()
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208 | 36b66e6e | Guido Trotter | return self._temporary_ids.Generate(existing, self._GenerateOneMAC, ec_id) |
209 | a8083063 | Iustin Pop | |
210 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
211 | 36b66e6e | Guido Trotter | def ReserveMAC(self, mac, ec_id): |
212 | 36b66e6e | Guido Trotter | """Reserve a MAC for an instance.
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213 | 1862d460 | Alexander Schreiber |
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214 | 1862d460 | Alexander Schreiber | This only checks instances managed by this cluster, it does not
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215 | 1862d460 | Alexander Schreiber | check for potential collisions elsewhere.
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216 | 1862d460 | Alexander Schreiber |
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217 | 1862d460 | Alexander Schreiber | """
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218 | 1862d460 | Alexander Schreiber | all_macs = self._AllMACs()
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219 | 36b66e6e | Guido Trotter | if mac in all_macs: |
220 | 36b66e6e | Guido Trotter | raise errors.ReservationError("mac already in use") |
221 | 36b66e6e | Guido Trotter | else:
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222 | 36b66e6e | Guido Trotter | self._temporary_macs.Reserve(mac, ec_id)
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223 | 1862d460 | Alexander Schreiber | |
224 | f9518d38 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
225 | d8aee57e | Iustin Pop | def ReserveLV(self, lv_name, ec_id): |
226 | d8aee57e | Iustin Pop | """Reserve an VG/LV pair for an instance.
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227 | d8aee57e | Iustin Pop |
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228 | d8aee57e | Iustin Pop | @type lv_name: string
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229 | d8aee57e | Iustin Pop | @param lv_name: the logical volume name to reserve
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230 | d8aee57e | Iustin Pop |
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231 | d8aee57e | Iustin Pop | """
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232 | d8aee57e | Iustin Pop | all_lvs = self._AllLVs()
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233 | d8aee57e | Iustin Pop | if lv_name in all_lvs: |
234 | d8aee57e | Iustin Pop | raise errors.ReservationError("LV already in use") |
235 | d8aee57e | Iustin Pop | else:
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236 | d8aee57e | Iustin Pop | self._temporary_lvs.Reserve(lv_name, ec_id)
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237 | d8aee57e | Iustin Pop | |
238 | d8aee57e | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
239 | afa1386e | Guido Trotter | def GenerateDRBDSecret(self, ec_id): |
240 | f9518d38 | Iustin Pop | """Generate a DRBD secret.
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241 | f9518d38 | Iustin Pop |
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242 | f9518d38 | Iustin Pop | This checks the current disks for duplicates.
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243 | f9518d38 | Iustin Pop |
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244 | f9518d38 | Iustin Pop | """
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245 | afa1386e | Guido Trotter | return self._temporary_secrets.Generate(self._AllDRBDSecrets(), |
246 | afa1386e | Guido Trotter | utils.GenerateSecret, |
247 | afa1386e | Guido Trotter | ec_id) |
248 | 8d9c3bef | Michael Hanselmann | |
249 | 34e54ebc | Iustin Pop | def _AllLVs(self): |
250 | 923b1523 | Iustin Pop | """Compute the list of all LVs.
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251 | 923b1523 | Iustin Pop |
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252 | 923b1523 | Iustin Pop | """
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253 | 923b1523 | Iustin Pop | lvnames = set()
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254 | 923b1523 | Iustin Pop | for instance in self._config_data.instances.values(): |
255 | 923b1523 | Iustin Pop | node_data = instance.MapLVsByNode() |
256 | 923b1523 | Iustin Pop | for lv_list in node_data.values(): |
257 | 923b1523 | Iustin Pop | lvnames.update(lv_list) |
258 | 923b1523 | Iustin Pop | return lvnames
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259 | 923b1523 | Iustin Pop | |
260 | 34e54ebc | Iustin Pop | def _AllIDs(self, include_temporary): |
261 | 34e54ebc | Iustin Pop | """Compute the list of all UUIDs and names we have.
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262 | 34e54ebc | Iustin Pop |
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263 | 34e54ebc | Iustin Pop | @type include_temporary: boolean
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264 | 34e54ebc | Iustin Pop | @param include_temporary: whether to include the _temporary_ids set
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265 | 34e54ebc | Iustin Pop | @rtype: set
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266 | 34e54ebc | Iustin Pop | @return: a set of IDs
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267 | 34e54ebc | Iustin Pop |
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268 | 34e54ebc | Iustin Pop | """
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269 | 34e54ebc | Iustin Pop | existing = set()
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270 | 34e54ebc | Iustin Pop | if include_temporary:
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271 | 4fae38c5 | Guido Trotter | existing.update(self._temporary_ids.GetReserved())
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272 | 34e54ebc | Iustin Pop | existing.update(self._AllLVs())
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273 | 34e54ebc | Iustin Pop | existing.update(self._config_data.instances.keys())
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274 | 34e54ebc | Iustin Pop | existing.update(self._config_data.nodes.keys())
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275 | 76d5d3a3 | Iustin Pop | existing.update([i.uuid for i in self._AllUUIDObjects() if i.uuid]) |
276 | 34e54ebc | Iustin Pop | return existing
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277 | 34e54ebc | Iustin Pop | |
278 | 4fae38c5 | Guido Trotter | def _GenerateUniqueID(self, ec_id): |
279 | 430b923c | Iustin Pop | """Generate an unique UUID.
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280 | 923b1523 | Iustin Pop |
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281 | 923b1523 | Iustin Pop | This checks the current node, instances and disk names for
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282 | 923b1523 | Iustin Pop | duplicates.
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283 | 923b1523 | Iustin Pop |
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284 | c41eea6e | Iustin Pop | @rtype: string
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285 | c41eea6e | Iustin Pop | @return: the unique id
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286 | 923b1523 | Iustin Pop |
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287 | 923b1523 | Iustin Pop | """
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288 | 4fae38c5 | Guido Trotter | existing = self._AllIDs(include_temporary=False) |
289 | 4fae38c5 | Guido Trotter | return self._temporary_ids.Generate(existing, utils.NewUUID, ec_id) |
290 | 923b1523 | Iustin Pop | |
291 | 430b923c | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
292 | 4fae38c5 | Guido Trotter | def GenerateUniqueID(self, ec_id): |
293 | 430b923c | Iustin Pop | """Generate an unique ID.
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294 | 430b923c | Iustin Pop |
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295 | 430b923c | Iustin Pop | This is just a wrapper over the unlocked version.
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296 | 430b923c | Iustin Pop |
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297 | 4fae38c5 | Guido Trotter | @type ec_id: string
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298 | 4fae38c5 | Guido Trotter | @param ec_id: unique id for the job to reserve the id to
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299 | 34d657ba | Iustin Pop |
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300 | 34d657ba | Iustin Pop | """
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301 | 4fae38c5 | Guido Trotter | return self._GenerateUniqueID(ec_id) |
302 | 34d657ba | Iustin Pop | |
303 | a8083063 | Iustin Pop | def _AllMACs(self): |
304 | a8083063 | Iustin Pop | """Return all MACs present in the config.
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305 | a8083063 | Iustin Pop |
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306 | c41eea6e | Iustin Pop | @rtype: list
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307 | c41eea6e | Iustin Pop | @return: the list of all MACs
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308 | c41eea6e | Iustin Pop |
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309 | a8083063 | Iustin Pop | """
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310 | a8083063 | Iustin Pop | result = [] |
311 | a8083063 | Iustin Pop | for instance in self._config_data.instances.values(): |
312 | a8083063 | Iustin Pop | for nic in instance.nics: |
313 | a8083063 | Iustin Pop | result.append(nic.mac) |
314 | a8083063 | Iustin Pop | |
315 | a8083063 | Iustin Pop | return result
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316 | a8083063 | Iustin Pop | |
317 | f9518d38 | Iustin Pop | def _AllDRBDSecrets(self): |
318 | f9518d38 | Iustin Pop | """Return all DRBD secrets present in the config.
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319 | f9518d38 | Iustin Pop |
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320 | c41eea6e | Iustin Pop | @rtype: list
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321 | c41eea6e | Iustin Pop | @return: the list of all DRBD secrets
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322 | c41eea6e | Iustin Pop |
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323 | f9518d38 | Iustin Pop | """
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324 | f9518d38 | Iustin Pop | def helper(disk, result): |
325 | f9518d38 | Iustin Pop | """Recursively gather secrets from this disk."""
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326 | f9518d38 | Iustin Pop | if disk.dev_type == constants.DT_DRBD8:
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327 | f9518d38 | Iustin Pop | result.append(disk.logical_id[5])
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328 | f9518d38 | Iustin Pop | if disk.children:
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329 | f9518d38 | Iustin Pop | for child in disk.children: |
330 | f9518d38 | Iustin Pop | helper(child, result) |
331 | f9518d38 | Iustin Pop | |
332 | f9518d38 | Iustin Pop | result = [] |
333 | f9518d38 | Iustin Pop | for instance in self._config_data.instances.values(): |
334 | f9518d38 | Iustin Pop | for disk in instance.disks: |
335 | f9518d38 | Iustin Pop | helper(disk, result) |
336 | f9518d38 | Iustin Pop | |
337 | f9518d38 | Iustin Pop | return result
|
338 | f9518d38 | Iustin Pop | |
339 | 4b98ac29 | Iustin Pop | def _CheckDiskIDs(self, disk, l_ids, p_ids): |
340 | 4b98ac29 | Iustin Pop | """Compute duplicate disk IDs
|
341 | 4b98ac29 | Iustin Pop |
|
342 | 4b98ac29 | Iustin Pop | @type disk: L{objects.Disk}
|
343 | 4b98ac29 | Iustin Pop | @param disk: the disk at which to start searching
|
344 | 4b98ac29 | Iustin Pop | @type l_ids: list
|
345 | 4b98ac29 | Iustin Pop | @param l_ids: list of current logical ids
|
346 | 4b98ac29 | Iustin Pop | @type p_ids: list
|
347 | 4b98ac29 | Iustin Pop | @param p_ids: list of current physical ids
|
348 | 4b98ac29 | Iustin Pop | @rtype: list
|
349 | 4b98ac29 | Iustin Pop | @return: a list of error messages
|
350 | 4b98ac29 | Iustin Pop |
|
351 | 4b98ac29 | Iustin Pop | """
|
352 | 4b98ac29 | Iustin Pop | result = [] |
353 | 25ae22e4 | Iustin Pop | if disk.logical_id is not None: |
354 | 25ae22e4 | Iustin Pop | if disk.logical_id in l_ids: |
355 | 25ae22e4 | Iustin Pop | result.append("duplicate logical id %s" % str(disk.logical_id)) |
356 | 25ae22e4 | Iustin Pop | else:
|
357 | 25ae22e4 | Iustin Pop | l_ids.append(disk.logical_id) |
358 | 25ae22e4 | Iustin Pop | if disk.physical_id is not None: |
359 | 25ae22e4 | Iustin Pop | if disk.physical_id in p_ids: |
360 | 25ae22e4 | Iustin Pop | result.append("duplicate physical id %s" % str(disk.physical_id)) |
361 | 25ae22e4 | Iustin Pop | else:
|
362 | 25ae22e4 | Iustin Pop | p_ids.append(disk.physical_id) |
363 | 4b98ac29 | Iustin Pop | |
364 | 4b98ac29 | Iustin Pop | if disk.children:
|
365 | 4b98ac29 | Iustin Pop | for child in disk.children: |
366 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(child, l_ids, p_ids))
|
367 | 4b98ac29 | Iustin Pop | return result
|
368 | 4b98ac29 | Iustin Pop | |
369 | 4a89c54a | Iustin Pop | def _UnlockedVerifyConfig(self): |
370 | a8efbb40 | Iustin Pop | """Verify function.
|
371 | a8efbb40 | Iustin Pop |
|
372 | 4a89c54a | Iustin Pop | @rtype: list
|
373 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
374 | 4a89c54a | Iustin Pop | configuration errors
|
375 | 4a89c54a | Iustin Pop |
|
376 | a8083063 | Iustin Pop | """
|
377 | 26f2fd8d | Iustin Pop | # pylint: disable-msg=R0914
|
378 | a8083063 | Iustin Pop | result = [] |
379 | a8083063 | Iustin Pop | seen_macs = [] |
380 | 48ce9fd9 | Iustin Pop | ports = {} |
381 | a8083063 | Iustin Pop | data = self._config_data
|
382 | 7e01d204 | Iustin Pop | cluster = data.cluster |
383 | 4b98ac29 | Iustin Pop | seen_lids = [] |
384 | 4b98ac29 | Iustin Pop | seen_pids = [] |
385 | 9a5fba23 | Guido Trotter | |
386 | 9a5fba23 | Guido Trotter | # global cluster checks
|
387 | 7e01d204 | Iustin Pop | if not cluster.enabled_hypervisors: |
388 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors list doesn't have any entries")
|
389 | 7e01d204 | Iustin Pop | invalid_hvs = set(cluster.enabled_hypervisors) - constants.HYPER_TYPES
|
390 | 9a5fba23 | Guido Trotter | if invalid_hvs:
|
391 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors contains invalid entries: %s" %
|
392 | 9a5fba23 | Guido Trotter | invalid_hvs) |
393 | 7e01d204 | Iustin Pop | missing_hvp = (set(cluster.enabled_hypervisors) -
|
394 | 7e01d204 | Iustin Pop | set(cluster.hvparams.keys()))
|
395 | 9f3ac970 | Iustin Pop | if missing_hvp:
|
396 | 9f3ac970 | Iustin Pop | result.append("hypervisor parameters missing for the enabled"
|
397 | 9f3ac970 | Iustin Pop | " hypervisor(s) %s" % utils.CommaJoin(missing_hvp))
|
398 | 9a5fba23 | Guido Trotter | |
399 | 7e01d204 | Iustin Pop | if cluster.master_node not in data.nodes: |
400 | 9a5fba23 | Guido Trotter | result.append("cluster has invalid primary node '%s'" %
|
401 | 7e01d204 | Iustin Pop | cluster.master_node) |
402 | 9a5fba23 | Guido Trotter | |
403 | 26f2fd8d | Iustin Pop | def _helper(owner, attr, value, template): |
404 | 26f2fd8d | Iustin Pop | try:
|
405 | 26f2fd8d | Iustin Pop | utils.ForceDictType(value, template) |
406 | 26f2fd8d | Iustin Pop | except errors.GenericError, err:
|
407 | 26f2fd8d | Iustin Pop | result.append("%s has invalid %s: %s" % (owner, attr, err))
|
408 | 26f2fd8d | Iustin Pop | |
409 | 26f2fd8d | Iustin Pop | def _helper_nic(owner, params): |
410 | 26f2fd8d | Iustin Pop | try:
|
411 | 26f2fd8d | Iustin Pop | objects.NIC.CheckParameterSyntax(params) |
412 | 26f2fd8d | Iustin Pop | except errors.ConfigurationError, err:
|
413 | 26f2fd8d | Iustin Pop | result.append("%s has invalid nicparams: %s" % (owner, err))
|
414 | 26f2fd8d | Iustin Pop | |
415 | 26f2fd8d | Iustin Pop | # check cluster parameters
|
416 | 26f2fd8d | Iustin Pop | _helper("cluster", "beparams", cluster.SimpleFillBE({}), |
417 | 26f2fd8d | Iustin Pop | constants.BES_PARAMETER_TYPES) |
418 | 26f2fd8d | Iustin Pop | _helper("cluster", "nicparams", cluster.SimpleFillNIC({}), |
419 | 26f2fd8d | Iustin Pop | constants.NICS_PARAMETER_TYPES) |
420 | 26f2fd8d | Iustin Pop | _helper_nic("cluster", cluster.SimpleFillNIC({}))
|
421 | 26f2fd8d | Iustin Pop | _helper("cluster", "ndparams", cluster.SimpleFillND({}), |
422 | 26f2fd8d | Iustin Pop | constants.NDS_PARAMETER_TYPES) |
423 | 26f2fd8d | Iustin Pop | |
424 | 9a5fba23 | Guido Trotter | # per-instance checks
|
425 | a8083063 | Iustin Pop | for instance_name in data.instances: |
426 | a8083063 | Iustin Pop | instance = data.instances[instance_name] |
427 | 81196341 | Iustin Pop | if instance.name != instance_name:
|
428 | 81196341 | Iustin Pop | result.append("instance '%s' is indexed by wrong name '%s'" %
|
429 | 81196341 | Iustin Pop | (instance.name, instance_name)) |
430 | a8083063 | Iustin Pop | if instance.primary_node not in data.nodes: |
431 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid primary node '%s'" %
|
432 | a8083063 | Iustin Pop | (instance_name, instance.primary_node)) |
433 | a8083063 | Iustin Pop | for snode in instance.secondary_nodes: |
434 | a8083063 | Iustin Pop | if snode not in data.nodes: |
435 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid secondary node '%s'" %
|
436 | a8083063 | Iustin Pop | (instance_name, snode)) |
437 | a8083063 | Iustin Pop | for idx, nic in enumerate(instance.nics): |
438 | a8083063 | Iustin Pop | if nic.mac in seen_macs: |
439 | 8522ceeb | Iustin Pop | result.append("instance '%s' has NIC %d mac %s duplicate" %
|
440 | a8083063 | Iustin Pop | (instance_name, idx, nic.mac)) |
441 | a8083063 | Iustin Pop | else:
|
442 | a8083063 | Iustin Pop | seen_macs.append(nic.mac) |
443 | 26f2fd8d | Iustin Pop | if nic.nicparams:
|
444 | 26f2fd8d | Iustin Pop | filled = cluster.SimpleFillNIC(nic.nicparams) |
445 | 26f2fd8d | Iustin Pop | owner = "instance %s nic %d" % (instance.name, idx)
|
446 | 26f2fd8d | Iustin Pop | _helper(owner, "nicparams",
|
447 | 26f2fd8d | Iustin Pop | filled, constants.NICS_PARAMETER_TYPES) |
448 | 26f2fd8d | Iustin Pop | _helper_nic(owner, filled) |
449 | 26f2fd8d | Iustin Pop | |
450 | 26f2fd8d | Iustin Pop | # parameter checks
|
451 | 26f2fd8d | Iustin Pop | if instance.beparams:
|
452 | 26f2fd8d | Iustin Pop | _helper("instance %s" % instance.name, "beparams", |
453 | 26f2fd8d | Iustin Pop | cluster.FillBE(instance), constants.BES_PARAMETER_TYPES) |
454 | 48ce9fd9 | Iustin Pop | |
455 | 48ce9fd9 | Iustin Pop | # gather the drbd ports for duplicate checks
|
456 | 48ce9fd9 | Iustin Pop | for dsk in instance.disks: |
457 | 48ce9fd9 | Iustin Pop | if dsk.dev_type in constants.LDS_DRBD: |
458 | 48ce9fd9 | Iustin Pop | tcp_port = dsk.logical_id[2]
|
459 | 48ce9fd9 | Iustin Pop | if tcp_port not in ports: |
460 | 48ce9fd9 | Iustin Pop | ports[tcp_port] = [] |
461 | 48ce9fd9 | Iustin Pop | ports[tcp_port].append((instance.name, "drbd disk %s" % dsk.iv_name))
|
462 | 48ce9fd9 | Iustin Pop | # gather network port reservation
|
463 | 48ce9fd9 | Iustin Pop | net_port = getattr(instance, "network_port", None) |
464 | 48ce9fd9 | Iustin Pop | if net_port is not None: |
465 | 48ce9fd9 | Iustin Pop | if net_port not in ports: |
466 | 48ce9fd9 | Iustin Pop | ports[net_port] = [] |
467 | 48ce9fd9 | Iustin Pop | ports[net_port].append((instance.name, "network port"))
|
468 | 48ce9fd9 | Iustin Pop | |
469 | 332d0e37 | Iustin Pop | # instance disk verify
|
470 | 332d0e37 | Iustin Pop | for idx, disk in enumerate(instance.disks): |
471 | 332d0e37 | Iustin Pop | result.extend(["instance '%s' disk %d error: %s" %
|
472 | 332d0e37 | Iustin Pop | (instance.name, idx, msg) for msg in disk.Verify()]) |
473 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(disk, seen_lids, seen_pids))
|
474 | 332d0e37 | Iustin Pop | |
475 | 48ce9fd9 | Iustin Pop | # cluster-wide pool of free ports
|
476 | 7e01d204 | Iustin Pop | for free_port in cluster.tcpudp_port_pool: |
477 | 48ce9fd9 | Iustin Pop | if free_port not in ports: |
478 | 48ce9fd9 | Iustin Pop | ports[free_port] = [] |
479 | 48ce9fd9 | Iustin Pop | ports[free_port].append(("cluster", "port marked as free")) |
480 | 48ce9fd9 | Iustin Pop | |
481 | 48ce9fd9 | Iustin Pop | # compute tcp/udp duplicate ports
|
482 | 48ce9fd9 | Iustin Pop | keys = ports.keys() |
483 | 48ce9fd9 | Iustin Pop | keys.sort() |
484 | 48ce9fd9 | Iustin Pop | for pnum in keys: |
485 | 48ce9fd9 | Iustin Pop | pdata = ports[pnum] |
486 | 48ce9fd9 | Iustin Pop | if len(pdata) > 1: |
487 | 1f864b60 | Iustin Pop | txt = utils.CommaJoin(["%s/%s" % val for val in pdata]) |
488 | 48ce9fd9 | Iustin Pop | result.append("tcp/udp port %s has duplicates: %s" % (pnum, txt))
|
489 | 48ce9fd9 | Iustin Pop | |
490 | 48ce9fd9 | Iustin Pop | # highest used tcp port check
|
491 | 48ce9fd9 | Iustin Pop | if keys:
|
492 | 7e01d204 | Iustin Pop | if keys[-1] > cluster.highest_used_port: |
493 | 48ce9fd9 | Iustin Pop | result.append("Highest used port mismatch, saved %s, computed %s" %
|
494 | 7e01d204 | Iustin Pop | (cluster.highest_used_port, keys[-1]))
|
495 | a8efbb40 | Iustin Pop | |
496 | 7e01d204 | Iustin Pop | if not data.nodes[cluster.master_node].master_candidate: |
497 | 3a26773f | Iustin Pop | result.append("Master node is not a master candidate")
|
498 | 3a26773f | Iustin Pop | |
499 | 4a89c54a | Iustin Pop | # master candidate checks
|
500 | e623dbe3 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats()
|
501 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
502 | ec0292f1 | Iustin Pop | result.append("Not enough master candidates: actual %d, target %d" %
|
503 | ec0292f1 | Iustin Pop | (mc_now, mc_max)) |
504 | 48ce9fd9 | Iustin Pop | |
505 | 5bf07049 | Iustin Pop | # node checks
|
506 | 81196341 | Iustin Pop | for node_name, node in data.nodes.items(): |
507 | 81196341 | Iustin Pop | if node.name != node_name:
|
508 | 81196341 | Iustin Pop | result.append("Node '%s' is indexed by wrong name '%s'" %
|
509 | 81196341 | Iustin Pop | (node.name, node_name)) |
510 | 5bf07049 | Iustin Pop | if [node.master_candidate, node.drained, node.offline].count(True) > 1: |
511 | 5bf07049 | Iustin Pop | result.append("Node %s state is invalid: master_candidate=%s,"
|
512 | 5bf07049 | Iustin Pop | " drain=%s, offline=%s" %
|
513 | 3d889a7d | Michael Hanselmann | (node.name, node.master_candidate, node.drained, |
514 | 5bf07049 | Iustin Pop | node.offline)) |
515 | 26f2fd8d | Iustin Pop | if node.group not in data.nodegroups: |
516 | 26f2fd8d | Iustin Pop | result.append("Node '%s' has invalid group '%s'" %
|
517 | 26f2fd8d | Iustin Pop | (node.name, node.group)) |
518 | 26f2fd8d | Iustin Pop | else:
|
519 | 26f2fd8d | Iustin Pop | _helper("node %s" % node.name, "ndparams", |
520 | 26f2fd8d | Iustin Pop | cluster.FillND(node, data.nodegroups[node.group]), |
521 | 26f2fd8d | Iustin Pop | constants.NDS_PARAMETER_TYPES) |
522 | 5bf07049 | Iustin Pop | |
523 | 6520ba14 | Guido Trotter | # nodegroups checks
|
524 | ace16501 | Guido Trotter | nodegroups_names = set()
|
525 | 6520ba14 | Guido Trotter | for nodegroup_uuid in data.nodegroups: |
526 | 6520ba14 | Guido Trotter | nodegroup = data.nodegroups[nodegroup_uuid] |
527 | 6520ba14 | Guido Trotter | if nodegroup.uuid != nodegroup_uuid:
|
528 | 913cc25e | Adeodato Simo | result.append("node group '%s' (uuid: '%s') indexed by wrong uuid '%s'"
|
529 | 6520ba14 | Guido Trotter | % (nodegroup.name, nodegroup.uuid, nodegroup_uuid)) |
530 | 485ba212 | Guido Trotter | if utils.UUID_RE.match(nodegroup.name.lower()):
|
531 | 913cc25e | Adeodato Simo | result.append("node group '%s' (uuid: '%s') has uuid-like name" %
|
532 | 485ba212 | Guido Trotter | (nodegroup.name, nodegroup.uuid)) |
533 | ace16501 | Guido Trotter | if nodegroup.name in nodegroups_names: |
534 | 913cc25e | Adeodato Simo | result.append("duplicate node group name '%s'" % nodegroup.name)
|
535 | ace16501 | Guido Trotter | else:
|
536 | ace16501 | Guido Trotter | nodegroups_names.add(nodegroup.name) |
537 | 26f2fd8d | Iustin Pop | if nodegroup.ndparams:
|
538 | 26f2fd8d | Iustin Pop | _helper("group %s" % nodegroup.name, "ndparams", |
539 | 26f2fd8d | Iustin Pop | cluster.SimpleFillND(nodegroup.ndparams), |
540 | 26f2fd8d | Iustin Pop | constants.NDS_PARAMETER_TYPES) |
541 | 26f2fd8d | Iustin Pop | |
542 | 6520ba14 | Guido Trotter | |
543 | 4a89c54a | Iustin Pop | # drbd minors check
|
544 | 1122eb25 | Iustin Pop | _, duplicates = self._UnlockedComputeDRBDMap()
|
545 | 4a89c54a | Iustin Pop | for node, minor, instance_a, instance_b in duplicates: |
546 | 4a89c54a | Iustin Pop | result.append("DRBD minor %d on node %s is assigned twice to instances"
|
547 | 4a89c54a | Iustin Pop | " %s and %s" % (minor, node, instance_a, instance_b))
|
548 | 4a89c54a | Iustin Pop | |
549 | 0ce8f948 | Iustin Pop | # IP checks
|
550 | 7e01d204 | Iustin Pop | default_nicparams = cluster.nicparams[constants.PP_DEFAULT] |
551 | b8716596 | Michael Hanselmann | ips = {} |
552 | b8716596 | Michael Hanselmann | |
553 | b8716596 | Michael Hanselmann | def _AddIpAddress(ip, name): |
554 | b8716596 | Michael Hanselmann | ips.setdefault(ip, []).append(name) |
555 | b8716596 | Michael Hanselmann | |
556 | 7e01d204 | Iustin Pop | _AddIpAddress(cluster.master_ip, "cluster_ip")
|
557 | 0ce8f948 | Iustin Pop | |
558 | 0ce8f948 | Iustin Pop | for node in data.nodes.values(): |
559 | b8716596 | Michael Hanselmann | _AddIpAddress(node.primary_ip, "node:%s/primary" % node.name)
|
560 | 0ce8f948 | Iustin Pop | if node.secondary_ip != node.primary_ip:
|
561 | b8716596 | Michael Hanselmann | _AddIpAddress(node.secondary_ip, "node:%s/secondary" % node.name)
|
562 | b8716596 | Michael Hanselmann | |
563 | b8716596 | Michael Hanselmann | for instance in data.instances.values(): |
564 | b8716596 | Michael Hanselmann | for idx, nic in enumerate(instance.nics): |
565 | b8716596 | Michael Hanselmann | if nic.ip is None: |
566 | b8716596 | Michael Hanselmann | continue
|
567 | b8716596 | Michael Hanselmann | |
568 | b8716596 | Michael Hanselmann | nicparams = objects.FillDict(default_nicparams, nic.nicparams) |
569 | b8716596 | Michael Hanselmann | nic_mode = nicparams[constants.NIC_MODE] |
570 | b8716596 | Michael Hanselmann | nic_link = nicparams[constants.NIC_LINK] |
571 | b8716596 | Michael Hanselmann | |
572 | b8716596 | Michael Hanselmann | if nic_mode == constants.NIC_MODE_BRIDGED:
|
573 | b8716596 | Michael Hanselmann | link = "bridge:%s" % nic_link
|
574 | b8716596 | Michael Hanselmann | elif nic_mode == constants.NIC_MODE_ROUTED:
|
575 | b8716596 | Michael Hanselmann | link = "route:%s" % nic_link
|
576 | b8716596 | Michael Hanselmann | else:
|
577 | b8716596 | Michael Hanselmann | raise errors.ProgrammerError("NIC mode '%s' not handled" % nic_mode) |
578 | b8716596 | Michael Hanselmann | |
579 | b8716596 | Michael Hanselmann | _AddIpAddress("%s/%s" % (link, nic.ip),
|
580 | b8716596 | Michael Hanselmann | "instance:%s/nic:%d" % (instance.name, idx))
|
581 | 0ce8f948 | Iustin Pop | |
582 | 0ce8f948 | Iustin Pop | for ip, owners in ips.items(): |
583 | 0ce8f948 | Iustin Pop | if len(owners) > 1: |
584 | 0ce8f948 | Iustin Pop | result.append("IP address %s is used by multiple owners: %s" %
|
585 | 1f864b60 | Iustin Pop | (ip, utils.CommaJoin(owners))) |
586 | b8716596 | Michael Hanselmann | |
587 | a8083063 | Iustin Pop | return result
|
588 | a8083063 | Iustin Pop | |
589 | 4a89c54a | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
590 | 4a89c54a | Iustin Pop | def VerifyConfig(self): |
591 | 4a89c54a | Iustin Pop | """Verify function.
|
592 | 4a89c54a | Iustin Pop |
|
593 | 4a89c54a | Iustin Pop | This is just a wrapper over L{_UnlockedVerifyConfig}.
|
594 | 4a89c54a | Iustin Pop |
|
595 | 4a89c54a | Iustin Pop | @rtype: list
|
596 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
597 | 4a89c54a | Iustin Pop | configuration errors
|
598 | 4a89c54a | Iustin Pop |
|
599 | 4a89c54a | Iustin Pop | """
|
600 | 4a89c54a | Iustin Pop | return self._UnlockedVerifyConfig() |
601 | 4a89c54a | Iustin Pop | |
602 | f78ede4e | Guido Trotter | def _UnlockedSetDiskID(self, disk, node_name): |
603 | a8083063 | Iustin Pop | """Convert the unique ID to the ID needed on the target nodes.
|
604 | a8083063 | Iustin Pop |
|
605 | a8083063 | Iustin Pop | This is used only for drbd, which needs ip/port configuration.
|
606 | a8083063 | Iustin Pop |
|
607 | a8083063 | Iustin Pop | The routine descends down and updates its children also, because
|
608 | a8083063 | Iustin Pop | this helps when the only the top device is passed to the remote
|
609 | a8083063 | Iustin Pop | node.
|
610 | a8083063 | Iustin Pop |
|
611 | f78ede4e | Guido Trotter | This function is for internal use, when the config lock is already held.
|
612 | f78ede4e | Guido Trotter |
|
613 | a8083063 | Iustin Pop | """
|
614 | a8083063 | Iustin Pop | if disk.children:
|
615 | a8083063 | Iustin Pop | for child in disk.children: |
616 | f78ede4e | Guido Trotter | self._UnlockedSetDiskID(child, node_name)
|
617 | a8083063 | Iustin Pop | |
618 | a8083063 | Iustin Pop | if disk.logical_id is None and disk.physical_id is not None: |
619 | a8083063 | Iustin Pop | return
|
620 | ffa1c0dc | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
621 | f9518d38 | Iustin Pop | pnode, snode, port, pminor, sminor, secret = disk.logical_id |
622 | a8083063 | Iustin Pop | if node_name not in (pnode, snode): |
623 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("DRBD device not knowing node %s" % |
624 | 3ecf6786 | Iustin Pop | node_name) |
625 | f78ede4e | Guido Trotter | pnode_info = self._UnlockedGetNodeInfo(pnode)
|
626 | f78ede4e | Guido Trotter | snode_info = self._UnlockedGetNodeInfo(snode)
|
627 | a8083063 | Iustin Pop | if pnode_info is None or snode_info is None: |
628 | a8083063 | Iustin Pop | raise errors.ConfigurationError("Can't find primary or secondary node" |
629 | a8083063 | Iustin Pop | " for %s" % str(disk)) |
630 | ffa1c0dc | Iustin Pop | p_data = (pnode_info.secondary_ip, port) |
631 | ffa1c0dc | Iustin Pop | s_data = (snode_info.secondary_ip, port) |
632 | a8083063 | Iustin Pop | if pnode == node_name:
|
633 | f9518d38 | Iustin Pop | disk.physical_id = p_data + s_data + (pminor, secret) |
634 | a8083063 | Iustin Pop | else: # it must be secondary, we tested above |
635 | f9518d38 | Iustin Pop | disk.physical_id = s_data + p_data + (sminor, secret) |
636 | a8083063 | Iustin Pop | else:
|
637 | a8083063 | Iustin Pop | disk.physical_id = disk.logical_id |
638 | a8083063 | Iustin Pop | return
|
639 | a8083063 | Iustin Pop | |
640 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
641 | f78ede4e | Guido Trotter | def SetDiskID(self, disk, node_name): |
642 | f78ede4e | Guido Trotter | """Convert the unique ID to the ID needed on the target nodes.
|
643 | f78ede4e | Guido Trotter |
|
644 | f78ede4e | Guido Trotter | This is used only for drbd, which needs ip/port configuration.
|
645 | f78ede4e | Guido Trotter |
|
646 | f78ede4e | Guido Trotter | The routine descends down and updates its children also, because
|
647 | f78ede4e | Guido Trotter | this helps when the only the top device is passed to the remote
|
648 | f78ede4e | Guido Trotter | node.
|
649 | f78ede4e | Guido Trotter |
|
650 | f78ede4e | Guido Trotter | """
|
651 | f78ede4e | Guido Trotter | return self._UnlockedSetDiskID(disk, node_name) |
652 | f78ede4e | Guido Trotter | |
653 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
654 | b2fddf63 | Iustin Pop | def AddTcpUdpPort(self, port): |
655 | b2fddf63 | Iustin Pop | """Adds a new port to the available port pool.
|
656 | b2fddf63 | Iustin Pop |
|
657 | b2fddf63 | Iustin Pop | """
|
658 | 264bb3c5 | Michael Hanselmann | if not isinstance(port, int): |
659 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed for port") |
660 | 264bb3c5 | Michael Hanselmann | |
661 | b2fddf63 | Iustin Pop | self._config_data.cluster.tcpudp_port_pool.add(port)
|
662 | 264bb3c5 | Michael Hanselmann | self._WriteConfig()
|
663 | 264bb3c5 | Michael Hanselmann | |
664 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
665 | b2fddf63 | Iustin Pop | def GetPortList(self): |
666 | 264bb3c5 | Michael Hanselmann | """Returns a copy of the current port list.
|
667 | 264bb3c5 | Michael Hanselmann |
|
668 | 264bb3c5 | Michael Hanselmann | """
|
669 | b2fddf63 | Iustin Pop | return self._config_data.cluster.tcpudp_port_pool.copy() |
670 | 264bb3c5 | Michael Hanselmann | |
671 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
672 | a8083063 | Iustin Pop | def AllocatePort(self): |
673 | a8083063 | Iustin Pop | """Allocate a port.
|
674 | a8083063 | Iustin Pop |
|
675 | b2fddf63 | Iustin Pop | The port will be taken from the available port pool or from the
|
676 | b2fddf63 | Iustin Pop | default port range (and in this case we increase
|
677 | b2fddf63 | Iustin Pop | highest_used_port).
|
678 | a8083063 | Iustin Pop |
|
679 | a8083063 | Iustin Pop | """
|
680 | 264bb3c5 | Michael Hanselmann | # If there are TCP/IP ports configured, we use them first.
|
681 | b2fddf63 | Iustin Pop | if self._config_data.cluster.tcpudp_port_pool: |
682 | b2fddf63 | Iustin Pop | port = self._config_data.cluster.tcpudp_port_pool.pop()
|
683 | 264bb3c5 | Michael Hanselmann | else:
|
684 | 264bb3c5 | Michael Hanselmann | port = self._config_data.cluster.highest_used_port + 1 |
685 | 264bb3c5 | Michael Hanselmann | if port >= constants.LAST_DRBD_PORT:
|
686 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("The highest used port is greater" |
687 | 3ecf6786 | Iustin Pop | " than %s. Aborting." %
|
688 | 3ecf6786 | Iustin Pop | constants.LAST_DRBD_PORT) |
689 | 264bb3c5 | Michael Hanselmann | self._config_data.cluster.highest_used_port = port
|
690 | a8083063 | Iustin Pop | |
691 | a8083063 | Iustin Pop | self._WriteConfig()
|
692 | a8083063 | Iustin Pop | return port
|
693 | a8083063 | Iustin Pop | |
694 | 6d2e83d5 | Iustin Pop | def _UnlockedComputeDRBDMap(self): |
695 | a81c53c9 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
696 | a81c53c9 | Iustin Pop |
|
697 | 4a89c54a | Iustin Pop | @rtype: (dict, list)
|
698 | c41eea6e | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
699 | c41eea6e | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
700 | 4a89c54a | Iustin Pop | an empty list), and a list of duplicates; if the duplicates
|
701 | 4a89c54a | Iustin Pop | list is not empty, the configuration is corrupted and its caller
|
702 | 4a89c54a | Iustin Pop | should raise an exception
|
703 | a81c53c9 | Iustin Pop |
|
704 | a81c53c9 | Iustin Pop | """
|
705 | a81c53c9 | Iustin Pop | def _AppendUsedPorts(instance_name, disk, used): |
706 | 4a89c54a | Iustin Pop | duplicates = [] |
707 | f9518d38 | Iustin Pop | if disk.dev_type == constants.LD_DRBD8 and len(disk.logical_id) >= 5: |
708 | 7c4d6c7b | Michael Hanselmann | node_a, node_b, _, minor_a, minor_b = disk.logical_id[:5]
|
709 | 7c4d6c7b | Michael Hanselmann | for node, port in ((node_a, minor_a), (node_b, minor_b)): |
710 | 4a89c54a | Iustin Pop | assert node in used, ("Node '%s' of instance '%s' not found" |
711 | 4a89c54a | Iustin Pop | " in node list" % (node, instance_name))
|
712 | a81c53c9 | Iustin Pop | if port in used[node]: |
713 | 4a89c54a | Iustin Pop | duplicates.append((node, port, instance_name, used[node][port])) |
714 | 4a89c54a | Iustin Pop | else:
|
715 | 4a89c54a | Iustin Pop | used[node][port] = instance_name |
716 | a81c53c9 | Iustin Pop | if disk.children:
|
717 | a81c53c9 | Iustin Pop | for child in disk.children: |
718 | 4a89c54a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance_name, child, used)) |
719 | 4a89c54a | Iustin Pop | return duplicates
|
720 | a81c53c9 | Iustin Pop | |
721 | 4a89c54a | Iustin Pop | duplicates = [] |
722 | a81c53c9 | Iustin Pop | my_dict = dict((node, {}) for node in self._config_data.nodes) |
723 | 79b26a7a | Iustin Pop | for instance in self._config_data.instances.itervalues(): |
724 | 79b26a7a | Iustin Pop | for disk in instance.disks: |
725 | 79b26a7a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance.name, disk, my_dict)) |
726 | a81c53c9 | Iustin Pop | for (node, minor), instance in self._temporary_drbds.iteritems(): |
727 | 79b26a7a | Iustin Pop | if minor in my_dict[node] and my_dict[node][minor] != instance: |
728 | 4a89c54a | Iustin Pop | duplicates.append((node, minor, instance, my_dict[node][minor])) |
729 | 4a89c54a | Iustin Pop | else:
|
730 | 4a89c54a | Iustin Pop | my_dict[node][minor] = instance |
731 | 4a89c54a | Iustin Pop | return my_dict, duplicates
|
732 | a81c53c9 | Iustin Pop | |
733 | a81c53c9 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
734 | 6d2e83d5 | Iustin Pop | def ComputeDRBDMap(self): |
735 | 6d2e83d5 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
736 | 6d2e83d5 | Iustin Pop |
|
737 | 6d2e83d5 | Iustin Pop | This is just a wrapper over L{_UnlockedComputeDRBDMap}.
|
738 | 6d2e83d5 | Iustin Pop |
|
739 | 6d2e83d5 | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
740 | 6d2e83d5 | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
741 | 6d2e83d5 | Iustin Pop | an empty list).
|
742 | 6d2e83d5 | Iustin Pop |
|
743 | 6d2e83d5 | Iustin Pop | """
|
744 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
745 | 4a89c54a | Iustin Pop | if duplicates:
|
746 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
747 | 4a89c54a | Iustin Pop | str(duplicates))
|
748 | 4a89c54a | Iustin Pop | return d_map
|
749 | 6d2e83d5 | Iustin Pop | |
750 | 6d2e83d5 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
751 | a81c53c9 | Iustin Pop | def AllocateDRBDMinor(self, nodes, instance): |
752 | a81c53c9 | Iustin Pop | """Allocate a drbd minor.
|
753 | a81c53c9 | Iustin Pop |
|
754 | a81c53c9 | Iustin Pop | The free minor will be automatically computed from the existing
|
755 | a81c53c9 | Iustin Pop | devices. A node can be given multiple times in order to allocate
|
756 | a81c53c9 | Iustin Pop | multiple minors. The result is the list of minors, in the same
|
757 | a81c53c9 | Iustin Pop | order as the passed nodes.
|
758 | a81c53c9 | Iustin Pop |
|
759 | 32388e6d | Iustin Pop | @type instance: string
|
760 | 32388e6d | Iustin Pop | @param instance: the instance for which we allocate minors
|
761 | 32388e6d | Iustin Pop |
|
762 | a81c53c9 | Iustin Pop | """
|
763 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
764 | 4a89c54a | Iustin Pop | "Invalid argument '%s' passed to AllocateDRBDMinor" % instance
|
765 | 32388e6d | Iustin Pop | |
766 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
767 | 4a89c54a | Iustin Pop | if duplicates:
|
768 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
769 | 4a89c54a | Iustin Pop | str(duplicates))
|
770 | a81c53c9 | Iustin Pop | result = [] |
771 | a81c53c9 | Iustin Pop | for nname in nodes: |
772 | a81c53c9 | Iustin Pop | ndata = d_map[nname] |
773 | a81c53c9 | Iustin Pop | if not ndata: |
774 | a81c53c9 | Iustin Pop | # no minors used, we can start at 0
|
775 | a81c53c9 | Iustin Pop | result.append(0)
|
776 | a81c53c9 | Iustin Pop | ndata[0] = instance
|
777 | d48663e4 | Iustin Pop | self._temporary_drbds[(nname, 0)] = instance |
778 | a81c53c9 | Iustin Pop | continue
|
779 | a81c53c9 | Iustin Pop | keys = ndata.keys() |
780 | a81c53c9 | Iustin Pop | keys.sort() |
781 | a81c53c9 | Iustin Pop | ffree = utils.FirstFree(keys) |
782 | a81c53c9 | Iustin Pop | if ffree is None: |
783 | a81c53c9 | Iustin Pop | # return the next minor
|
784 | a81c53c9 | Iustin Pop | # TODO: implement high-limit check
|
785 | a81c53c9 | Iustin Pop | minor = keys[-1] + 1 |
786 | a81c53c9 | Iustin Pop | else:
|
787 | a81c53c9 | Iustin Pop | minor = ffree |
788 | 4a89c54a | Iustin Pop | # double-check minor against current instances
|
789 | 4a89c54a | Iustin Pop | assert minor not in d_map[nname], \ |
790 | 4a89c54a | Iustin Pop | ("Attempt to reuse allocated DRBD minor %d on node %s,"
|
791 | 4a89c54a | Iustin Pop | " already allocated to instance %s" %
|
792 | 4a89c54a | Iustin Pop | (minor, nname, d_map[nname][minor])) |
793 | a81c53c9 | Iustin Pop | ndata[minor] = instance |
794 | 4a89c54a | Iustin Pop | # double-check minor against reservation
|
795 | 4a89c54a | Iustin Pop | r_key = (nname, minor) |
796 | 4a89c54a | Iustin Pop | assert r_key not in self._temporary_drbds, \ |
797 | 4a89c54a | Iustin Pop | ("Attempt to reuse reserved DRBD minor %d on node %s,"
|
798 | 4a89c54a | Iustin Pop | " reserved for instance %s" %
|
799 | 4a89c54a | Iustin Pop | (minor, nname, self._temporary_drbds[r_key]))
|
800 | 4a89c54a | Iustin Pop | self._temporary_drbds[r_key] = instance
|
801 | 4a89c54a | Iustin Pop | result.append(minor) |
802 | a81c53c9 | Iustin Pop | logging.debug("Request to allocate drbd minors, input: %s, returning %s",
|
803 | a81c53c9 | Iustin Pop | nodes, result) |
804 | a81c53c9 | Iustin Pop | return result
|
805 | a81c53c9 | Iustin Pop | |
806 | 61cf6b5e | Iustin Pop | def _UnlockedReleaseDRBDMinors(self, instance): |
807 | a81c53c9 | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
808 | a81c53c9 | Iustin Pop |
|
809 | a81c53c9 | Iustin Pop | @type instance: string
|
810 | a81c53c9 | Iustin Pop | @param instance: the instance for which temporary minors should be
|
811 | a81c53c9 | Iustin Pop | released
|
812 | a81c53c9 | Iustin Pop |
|
813 | a81c53c9 | Iustin Pop | """
|
814 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
815 | 32388e6d | Iustin Pop | "Invalid argument passed to ReleaseDRBDMinors"
|
816 | a81c53c9 | Iustin Pop | for key, name in self._temporary_drbds.items(): |
817 | a81c53c9 | Iustin Pop | if name == instance:
|
818 | a81c53c9 | Iustin Pop | del self._temporary_drbds[key] |
819 | a81c53c9 | Iustin Pop | |
820 | 61cf6b5e | Iustin Pop | @locking.ssynchronized(_config_lock)
|
821 | 61cf6b5e | Iustin Pop | def ReleaseDRBDMinors(self, instance): |
822 | 61cf6b5e | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
823 | 61cf6b5e | Iustin Pop |
|
824 | 61cf6b5e | Iustin Pop | This should be called on the error paths, on the success paths
|
825 | 61cf6b5e | Iustin Pop | it's automatically called by the ConfigWriter add and update
|
826 | 61cf6b5e | Iustin Pop | functions.
|
827 | 61cf6b5e | Iustin Pop |
|
828 | 61cf6b5e | Iustin Pop | This function is just a wrapper over L{_UnlockedReleaseDRBDMinors}.
|
829 | 61cf6b5e | Iustin Pop |
|
830 | 61cf6b5e | Iustin Pop | @type instance: string
|
831 | 61cf6b5e | Iustin Pop | @param instance: the instance for which temporary minors should be
|
832 | 61cf6b5e | Iustin Pop | released
|
833 | 61cf6b5e | Iustin Pop |
|
834 | 61cf6b5e | Iustin Pop | """
|
835 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance)
|
836 | 61cf6b5e | Iustin Pop | |
837 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
838 | 4a8b186a | Michael Hanselmann | def GetConfigVersion(self): |
839 | 4a8b186a | Michael Hanselmann | """Get the configuration version.
|
840 | 4a8b186a | Michael Hanselmann |
|
841 | 4a8b186a | Michael Hanselmann | @return: Config version
|
842 | 4a8b186a | Michael Hanselmann |
|
843 | 4a8b186a | Michael Hanselmann | """
|
844 | 4a8b186a | Michael Hanselmann | return self._config_data.version |
845 | 4a8b186a | Michael Hanselmann | |
846 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
847 | 4a8b186a | Michael Hanselmann | def GetClusterName(self): |
848 | 4a8b186a | Michael Hanselmann | """Get cluster name.
|
849 | 4a8b186a | Michael Hanselmann |
|
850 | 4a8b186a | Michael Hanselmann | @return: Cluster name
|
851 | 4a8b186a | Michael Hanselmann |
|
852 | 4a8b186a | Michael Hanselmann | """
|
853 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.cluster_name |
854 | 4a8b186a | Michael Hanselmann | |
855 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
856 | 4a8b186a | Michael Hanselmann | def GetMasterNode(self): |
857 | 4a8b186a | Michael Hanselmann | """Get the hostname of the master node for this cluster.
|
858 | 4a8b186a | Michael Hanselmann |
|
859 | 4a8b186a | Michael Hanselmann | @return: Master hostname
|
860 | 4a8b186a | Michael Hanselmann |
|
861 | 4a8b186a | Michael Hanselmann | """
|
862 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_node |
863 | 4a8b186a | Michael Hanselmann | |
864 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
865 | 4a8b186a | Michael Hanselmann | def GetMasterIP(self): |
866 | 4a8b186a | Michael Hanselmann | """Get the IP of the master node for this cluster.
|
867 | 4a8b186a | Michael Hanselmann |
|
868 | 4a8b186a | Michael Hanselmann | @return: Master IP
|
869 | 4a8b186a | Michael Hanselmann |
|
870 | 4a8b186a | Michael Hanselmann | """
|
871 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_ip |
872 | 4a8b186a | Michael Hanselmann | |
873 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
874 | 4a8b186a | Michael Hanselmann | def GetMasterNetdev(self): |
875 | 4a8b186a | Michael Hanselmann | """Get the master network device for this cluster.
|
876 | 4a8b186a | Michael Hanselmann |
|
877 | 4a8b186a | Michael Hanselmann | """
|
878 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_netdev |
879 | 4a8b186a | Michael Hanselmann | |
880 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
881 | 4a8b186a | Michael Hanselmann | def GetFileStorageDir(self): |
882 | 4a8b186a | Michael Hanselmann | """Get the file storage dir for this cluster.
|
883 | 4a8b186a | Michael Hanselmann |
|
884 | 4a8b186a | Michael Hanselmann | """
|
885 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.file_storage_dir |
886 | 4a8b186a | Michael Hanselmann | |
887 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
888 | 4b97f902 | Apollon Oikonomopoulos | def GetSharedFileStorageDir(self): |
889 | 4b97f902 | Apollon Oikonomopoulos | """Get the shared file storage dir for this cluster.
|
890 | 4b97f902 | Apollon Oikonomopoulos |
|
891 | 4b97f902 | Apollon Oikonomopoulos | """
|
892 | 4b97f902 | Apollon Oikonomopoulos | return self._config_data.cluster.shared_file_storage_dir |
893 | 4b97f902 | Apollon Oikonomopoulos | |
894 | 4b97f902 | Apollon Oikonomopoulos | @locking.ssynchronized(_config_lock, shared=1) |
895 | 4a8b186a | Michael Hanselmann | def GetHypervisorType(self): |
896 | 4a8b186a | Michael Hanselmann | """Get the hypervisor type for this cluster.
|
897 | 4a8b186a | Michael Hanselmann |
|
898 | 4a8b186a | Michael Hanselmann | """
|
899 | 066f465d | Guido Trotter | return self._config_data.cluster.enabled_hypervisors[0] |
900 | 4a8b186a | Michael Hanselmann | |
901 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
902 | a8083063 | Iustin Pop | def GetHostKey(self): |
903 | a8083063 | Iustin Pop | """Return the rsa hostkey from the config.
|
904 | a8083063 | Iustin Pop |
|
905 | c41eea6e | Iustin Pop | @rtype: string
|
906 | c41eea6e | Iustin Pop | @return: the rsa hostkey
|
907 | a8083063 | Iustin Pop |
|
908 | a8083063 | Iustin Pop | """
|
909 | a8083063 | Iustin Pop | return self._config_data.cluster.rsahostkeypub |
910 | a8083063 | Iustin Pop | |
911 | bf4af505 | Apollon Oikonomopoulos | @locking.ssynchronized(_config_lock, shared=1) |
912 | bf4af505 | Apollon Oikonomopoulos | def GetDefaultIAllocator(self): |
913 | bf4af505 | Apollon Oikonomopoulos | """Get the default instance allocator for this cluster.
|
914 | bf4af505 | Apollon Oikonomopoulos |
|
915 | bf4af505 | Apollon Oikonomopoulos | """
|
916 | bf4af505 | Apollon Oikonomopoulos | return self._config_data.cluster.default_iallocator |
917 | bf4af505 | Apollon Oikonomopoulos | |
918 | 868a98ca | Manuel Franceschini | @locking.ssynchronized(_config_lock, shared=1) |
919 | 868a98ca | Manuel Franceschini | def GetPrimaryIPFamily(self): |
920 | 868a98ca | Manuel Franceschini | """Get cluster primary ip family.
|
921 | 868a98ca | Manuel Franceschini |
|
922 | 868a98ca | Manuel Franceschini | @return: primary ip family
|
923 | 868a98ca | Manuel Franceschini |
|
924 | 868a98ca | Manuel Franceschini | """
|
925 | 868a98ca | Manuel Franceschini | return self._config_data.cluster.primary_ip_family |
926 | 868a98ca | Manuel Franceschini | |
927 | e11a1b77 | Adeodato Simo | @locking.ssynchronized(_config_lock)
|
928 | e11a1b77 | Adeodato Simo | def AddNodeGroup(self, group, ec_id, check_uuid=True): |
929 | e11a1b77 | Adeodato Simo | """Add a node group to the configuration.
|
930 | e11a1b77 | Adeodato Simo |
|
931 | 90e99856 | Adeodato Simo | This method calls group.UpgradeConfig() to fill any missing attributes
|
932 | 90e99856 | Adeodato Simo | according to their default values.
|
933 | 90e99856 | Adeodato Simo |
|
934 | e11a1b77 | Adeodato Simo | @type group: L{objects.NodeGroup}
|
935 | e11a1b77 | Adeodato Simo | @param group: the NodeGroup object to add
|
936 | e11a1b77 | Adeodato Simo | @type ec_id: string
|
937 | e11a1b77 | Adeodato Simo | @param ec_id: unique id for the job to use when creating a missing UUID
|
938 | e11a1b77 | Adeodato Simo | @type check_uuid: bool
|
939 | e11a1b77 | Adeodato Simo | @param check_uuid: add an UUID to the group if it doesn't have one or, if
|
940 | e11a1b77 | Adeodato Simo | it does, ensure that it does not exist in the
|
941 | e11a1b77 | Adeodato Simo | configuration already
|
942 | e11a1b77 | Adeodato Simo |
|
943 | e11a1b77 | Adeodato Simo | """
|
944 | e11a1b77 | Adeodato Simo | self._UnlockedAddNodeGroup(group, ec_id, check_uuid)
|
945 | e11a1b77 | Adeodato Simo | self._WriteConfig()
|
946 | e11a1b77 | Adeodato Simo | |
947 | e11a1b77 | Adeodato Simo | def _UnlockedAddNodeGroup(self, group, ec_id, check_uuid): |
948 | e11a1b77 | Adeodato Simo | """Add a node group to the configuration.
|
949 | e11a1b77 | Adeodato Simo |
|
950 | e11a1b77 | Adeodato Simo | """
|
951 | e11a1b77 | Adeodato Simo | logging.info("Adding node group %s to configuration", group.name)
|
952 | e11a1b77 | Adeodato Simo | |
953 | e11a1b77 | Adeodato Simo | # Some code might need to add a node group with a pre-populated UUID
|
954 | e11a1b77 | Adeodato Simo | # generated with ConfigWriter.GenerateUniqueID(). We allow them to bypass
|
955 | e11a1b77 | Adeodato Simo | # the "does this UUID" exist already check.
|
956 | e11a1b77 | Adeodato Simo | if check_uuid:
|
957 | e11a1b77 | Adeodato Simo | self._EnsureUUID(group, ec_id)
|
958 | e11a1b77 | Adeodato Simo | |
959 | 18ffc0fe | Stephen Shirley | try:
|
960 | 18ffc0fe | Stephen Shirley | existing_uuid = self._UnlockedLookupNodeGroup(group.name)
|
961 | 18ffc0fe | Stephen Shirley | except errors.OpPrereqError:
|
962 | 18ffc0fe | Stephen Shirley | pass
|
963 | 18ffc0fe | Stephen Shirley | else:
|
964 | 18ffc0fe | Stephen Shirley | raise errors.OpPrereqError("Desired group name '%s' already exists as a" |
965 | 18ffc0fe | Stephen Shirley | " node group (UUID: %s)" %
|
966 | 18ffc0fe | Stephen Shirley | (group.name, existing_uuid), |
967 | 18ffc0fe | Stephen Shirley | errors.ECODE_EXISTS) |
968 | 18ffc0fe | Stephen Shirley | |
969 | e11a1b77 | Adeodato Simo | group.serial_no = 1
|
970 | e11a1b77 | Adeodato Simo | group.ctime = group.mtime = time.time() |
971 | 90e99856 | Adeodato Simo | group.UpgradeConfig() |
972 | e11a1b77 | Adeodato Simo | |
973 | e11a1b77 | Adeodato Simo | self._config_data.nodegroups[group.uuid] = group
|
974 | e11a1b77 | Adeodato Simo | self._config_data.cluster.serial_no += 1 |
975 | e11a1b77 | Adeodato Simo | |
976 | e11a1b77 | Adeodato Simo | @locking.ssynchronized(_config_lock)
|
977 | e11a1b77 | Adeodato Simo | def RemoveNodeGroup(self, group_uuid): |
978 | e11a1b77 | Adeodato Simo | """Remove a node group from the configuration.
|
979 | e11a1b77 | Adeodato Simo |
|
980 | e11a1b77 | Adeodato Simo | @type group_uuid: string
|
981 | e11a1b77 | Adeodato Simo | @param group_uuid: the UUID of the node group to remove
|
982 | e11a1b77 | Adeodato Simo |
|
983 | e11a1b77 | Adeodato Simo | """
|
984 | e11a1b77 | Adeodato Simo | logging.info("Removing node group %s from configuration", group_uuid)
|
985 | e11a1b77 | Adeodato Simo | |
986 | e11a1b77 | Adeodato Simo | if group_uuid not in self._config_data.nodegroups: |
987 | e11a1b77 | Adeodato Simo | raise errors.ConfigurationError("Unknown node group '%s'" % group_uuid) |
988 | e11a1b77 | Adeodato Simo | |
989 | 0389c42a | Stephen Shirley | assert len(self._config_data.nodegroups) != 1, \ |
990 | 0389c42a | Stephen Shirley | "Group '%s' is the only group, cannot be removed" % group_uuid
|
991 | 0389c42a | Stephen Shirley | |
992 | e11a1b77 | Adeodato Simo | del self._config_data.nodegroups[group_uuid] |
993 | e11a1b77 | Adeodato Simo | self._config_data.cluster.serial_no += 1 |
994 | e11a1b77 | Adeodato Simo | self._WriteConfig()
|
995 | e11a1b77 | Adeodato Simo | |
996 | e85d8982 | Stephen Shirley | def _UnlockedLookupNodeGroup(self, target): |
997 | 412b3531 | Guido Trotter | """Lookup a node group's UUID.
|
998 | eaa98a04 | Guido Trotter |
|
999 | eaa98a04 | Guido Trotter | @type target: string or None
|
1000 | 412b3531 | Guido Trotter | @param target: group name or UUID or None to look for the default
|
1001 | eaa98a04 | Guido Trotter | @rtype: string
|
1002 | 412b3531 | Guido Trotter | @return: nodegroup UUID
|
1003 | eaa98a04 | Guido Trotter | @raises errors.OpPrereqError: when the target group cannot be found
|
1004 | eaa98a04 | Guido Trotter |
|
1005 | eaa98a04 | Guido Trotter | """
|
1006 | eaa98a04 | Guido Trotter | if target is None: |
1007 | eaa98a04 | Guido Trotter | if len(self._config_data.nodegroups) != 1: |
1008 | 913cc25e | Adeodato Simo | raise errors.OpPrereqError("More than one node group exists. Target" |
1009 | eaa98a04 | Guido Trotter | " group must be specified explicitely.")
|
1010 | eaa98a04 | Guido Trotter | else:
|
1011 | eaa98a04 | Guido Trotter | return self._config_data.nodegroups.keys()[0] |
1012 | eaa98a04 | Guido Trotter | if target in self._config_data.nodegroups: |
1013 | eaa98a04 | Guido Trotter | return target
|
1014 | eaa98a04 | Guido Trotter | for nodegroup in self._config_data.nodegroups.values(): |
1015 | eaa98a04 | Guido Trotter | if nodegroup.name == target:
|
1016 | eaa98a04 | Guido Trotter | return nodegroup.uuid
|
1017 | e0f9ed64 | Adeodato Simo | raise errors.OpPrereqError("Node group '%s' not found" % target, |
1018 | e0f9ed64 | Adeodato Simo | errors.ECODE_NOENT) |
1019 | eaa98a04 | Guido Trotter | |
1020 | e85d8982 | Stephen Shirley | @locking.ssynchronized(_config_lock, shared=1) |
1021 | e85d8982 | Stephen Shirley | def LookupNodeGroup(self, target): |
1022 | e85d8982 | Stephen Shirley | """Lookup a node group's UUID.
|
1023 | e85d8982 | Stephen Shirley |
|
1024 | e85d8982 | Stephen Shirley | This function is just a wrapper over L{_UnlockedLookupNodeGroup}.
|
1025 | e85d8982 | Stephen Shirley |
|
1026 | e85d8982 | Stephen Shirley | @type target: string or None
|
1027 | e85d8982 | Stephen Shirley | @param target: group name or UUID or None to look for the default
|
1028 | e85d8982 | Stephen Shirley | @rtype: string
|
1029 | e85d8982 | Stephen Shirley | @return: nodegroup UUID
|
1030 | e85d8982 | Stephen Shirley |
|
1031 | e85d8982 | Stephen Shirley | """
|
1032 | e85d8982 | Stephen Shirley | return self._UnlockedLookupNodeGroup(target) |
1033 | e85d8982 | Stephen Shirley | |
1034 | 5768e6a6 | René Nussbaumer | def _UnlockedGetNodeGroup(self, uuid): |
1035 | 648e4196 | Guido Trotter | """Lookup a node group.
|
1036 | 648e4196 | Guido Trotter |
|
1037 | 648e4196 | Guido Trotter | @type uuid: string
|
1038 | 648e4196 | Guido Trotter | @param uuid: group UUID
|
1039 | 648e4196 | Guido Trotter | @rtype: L{objects.NodeGroup} or None
|
1040 | 648e4196 | Guido Trotter | @return: nodegroup object, or None if not found
|
1041 | 648e4196 | Guido Trotter |
|
1042 | 648e4196 | Guido Trotter | """
|
1043 | 648e4196 | Guido Trotter | if uuid not in self._config_data.nodegroups: |
1044 | 648e4196 | Guido Trotter | return None |
1045 | 648e4196 | Guido Trotter | |
1046 | 648e4196 | Guido Trotter | return self._config_data.nodegroups[uuid] |
1047 | 648e4196 | Guido Trotter | |
1048 | 648e4196 | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1049 | 5768e6a6 | René Nussbaumer | def GetNodeGroup(self, uuid): |
1050 | 5768e6a6 | René Nussbaumer | """Lookup a node group.
|
1051 | 5768e6a6 | René Nussbaumer |
|
1052 | 5768e6a6 | René Nussbaumer | @type uuid: string
|
1053 | 5768e6a6 | René Nussbaumer | @param uuid: group UUID
|
1054 | 5768e6a6 | René Nussbaumer | @rtype: L{objects.NodeGroup} or None
|
1055 | 5768e6a6 | René Nussbaumer | @return: nodegroup object, or None if not found
|
1056 | 5768e6a6 | René Nussbaumer |
|
1057 | 5768e6a6 | René Nussbaumer | """
|
1058 | 5768e6a6 | René Nussbaumer | return self._UnlockedGetNodeGroup(uuid) |
1059 | 5768e6a6 | René Nussbaumer | |
1060 | 5768e6a6 | René Nussbaumer | @locking.ssynchronized(_config_lock, shared=1) |
1061 | 622444e5 | Iustin Pop | def GetAllNodeGroupsInfo(self): |
1062 | 622444e5 | Iustin Pop | """Get the configuration of all node groups.
|
1063 | 622444e5 | Iustin Pop |
|
1064 | 622444e5 | Iustin Pop | """
|
1065 | 622444e5 | Iustin Pop | return dict(self._config_data.nodegroups) |
1066 | 622444e5 | Iustin Pop | |
1067 | 1ac6f2ad | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1068 | 1ac6f2ad | Guido Trotter | def GetNodeGroupList(self): |
1069 | 1ac6f2ad | Guido Trotter | """Get a list of node groups.
|
1070 | 1ac6f2ad | Guido Trotter |
|
1071 | 1ac6f2ad | Guido Trotter | """
|
1072 | 1ac6f2ad | Guido Trotter | return self._config_data.nodegroups.keys() |
1073 | 1ac6f2ad | Guido Trotter | |
1074 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1075 | 0debfb35 | Guido Trotter | def AddInstance(self, instance, ec_id): |
1076 | a8083063 | Iustin Pop | """Add an instance to the config.
|
1077 | a8083063 | Iustin Pop |
|
1078 | a8083063 | Iustin Pop | This should be used after creating a new instance.
|
1079 | a8083063 | Iustin Pop |
|
1080 | c41eea6e | Iustin Pop | @type instance: L{objects.Instance}
|
1081 | c41eea6e | Iustin Pop | @param instance: the instance object
|
1082 | c41eea6e | Iustin Pop |
|
1083 | a8083063 | Iustin Pop | """
|
1084 | a8083063 | Iustin Pop | if not isinstance(instance, objects.Instance): |
1085 | a8083063 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed to AddInstance") |
1086 | a8083063 | Iustin Pop | |
1087 | e00fb268 | Iustin Pop | if instance.disk_template != constants.DT_DISKLESS:
|
1088 | e00fb268 | Iustin Pop | all_lvs = instance.MapLVsByNode() |
1089 | 74a48621 | Iustin Pop | logging.info("Instance '%s' DISK_LAYOUT: %s", instance.name, all_lvs)
|
1090 | 923b1523 | Iustin Pop | |
1091 | e4640214 | Guido Trotter | all_macs = self._AllMACs()
|
1092 | e4640214 | Guido Trotter | for nic in instance.nics: |
1093 | e4640214 | Guido Trotter | if nic.mac in all_macs: |
1094 | e4640214 | Guido Trotter | raise errors.ConfigurationError("Cannot add instance %s:" |
1095 | 430b923c | Iustin Pop | " MAC address '%s' already in use." %
|
1096 | 430b923c | Iustin Pop | (instance.name, nic.mac)) |
1097 | 430b923c | Iustin Pop | |
1098 | 0debfb35 | Guido Trotter | self._EnsureUUID(instance, ec_id)
|
1099 | e4640214 | Guido Trotter | |
1100 | b989e85d | Iustin Pop | instance.serial_no = 1
|
1101 | d693c864 | Iustin Pop | instance.ctime = instance.mtime = time.time() |
1102 | a8083063 | Iustin Pop | self._config_data.instances[instance.name] = instance
|
1103 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1104 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance.name)
|
1105 | a8083063 | Iustin Pop | self._WriteConfig()
|
1106 | a8083063 | Iustin Pop | |
1107 | 0debfb35 | Guido Trotter | def _EnsureUUID(self, item, ec_id): |
1108 | 430b923c | Iustin Pop | """Ensures a given object has a valid UUID.
|
1109 | 430b923c | Iustin Pop |
|
1110 | 430b923c | Iustin Pop | @param item: the instance or node to be checked
|
1111 | 0debfb35 | Guido Trotter | @param ec_id: the execution context id for the uuid reservation
|
1112 | 430b923c | Iustin Pop |
|
1113 | 430b923c | Iustin Pop | """
|
1114 | 430b923c | Iustin Pop | if not item.uuid: |
1115 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(ec_id)
|
1116 | be0fc05d | Iustin Pop | elif item.uuid in self._AllIDs(include_temporary=True): |
1117 | be0fc05d | Iustin Pop | raise errors.ConfigurationError("Cannot add '%s': UUID %s already" |
1118 | be0fc05d | Iustin Pop | " in use" % (item.name, item.uuid))
|
1119 | 430b923c | Iustin Pop | |
1120 | 6a408fb2 | Iustin Pop | def _SetInstanceStatus(self, instance_name, status): |
1121 | 6a408fb2 | Iustin Pop | """Set the instance's status to a given value.
|
1122 | a8083063 | Iustin Pop |
|
1123 | a8083063 | Iustin Pop | """
|
1124 | 0d68c45d | Iustin Pop | assert isinstance(status, bool), \ |
1125 | 0d68c45d | Iustin Pop | "Invalid status '%s' passed to SetInstanceStatus" % (status,)
|
1126 | a8083063 | Iustin Pop | |
1127 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
1128 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % |
1129 | 3ecf6786 | Iustin Pop | instance_name) |
1130 | a8083063 | Iustin Pop | instance = self._config_data.instances[instance_name]
|
1131 | 0d68c45d | Iustin Pop | if instance.admin_up != status:
|
1132 | 0d68c45d | Iustin Pop | instance.admin_up = status |
1133 | b989e85d | Iustin Pop | instance.serial_no += 1
|
1134 | d693c864 | Iustin Pop | instance.mtime = time.time() |
1135 | 455a3445 | Iustin Pop | self._WriteConfig()
|
1136 | a8083063 | Iustin Pop | |
1137 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1138 | 6a408fb2 | Iustin Pop | def MarkInstanceUp(self, instance_name): |
1139 | 6a408fb2 | Iustin Pop | """Mark the instance status to up in the config.
|
1140 | 6a408fb2 | Iustin Pop |
|
1141 | 6a408fb2 | Iustin Pop | """
|
1142 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, True) |
1143 | 6a408fb2 | Iustin Pop | |
1144 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1145 | a8083063 | Iustin Pop | def RemoveInstance(self, instance_name): |
1146 | a8083063 | Iustin Pop | """Remove the instance from the configuration.
|
1147 | a8083063 | Iustin Pop |
|
1148 | a8083063 | Iustin Pop | """
|
1149 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
1150 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % instance_name) |
1151 | a8083063 | Iustin Pop | del self._config_data.instances[instance_name] |
1152 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1153 | a8083063 | Iustin Pop | self._WriteConfig()
|
1154 | a8083063 | Iustin Pop | |
1155 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1156 | fc95f88f | Iustin Pop | def RenameInstance(self, old_name, new_name): |
1157 | fc95f88f | Iustin Pop | """Rename an instance.
|
1158 | fc95f88f | Iustin Pop |
|
1159 | fc95f88f | Iustin Pop | This needs to be done in ConfigWriter and not by RemoveInstance
|
1160 | fc95f88f | Iustin Pop | combined with AddInstance as only we can guarantee an atomic
|
1161 | fc95f88f | Iustin Pop | rename.
|
1162 | fc95f88f | Iustin Pop |
|
1163 | fc95f88f | Iustin Pop | """
|
1164 | fc95f88f | Iustin Pop | if old_name not in self._config_data.instances: |
1165 | fc95f88f | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % old_name) |
1166 | fc95f88f | Iustin Pop | inst = self._config_data.instances[old_name]
|
1167 | fc95f88f | Iustin Pop | del self._config_data.instances[old_name] |
1168 | fc95f88f | Iustin Pop | inst.name = new_name |
1169 | b23c4333 | Manuel Franceschini | |
1170 | b23c4333 | Manuel Franceschini | for disk in inst.disks: |
1171 | b23c4333 | Manuel Franceschini | if disk.dev_type == constants.LD_FILE:
|
1172 | b23c4333 | Manuel Franceschini | # rename the file paths in logical and physical id
|
1173 | b23c4333 | Manuel Franceschini | file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1]))
|
1174 | 3721d2fe | Guido Trotter | disk_fname = "disk%s" % disk.iv_name.split("/")[1] |
1175 | b23c4333 | Manuel Franceschini | disk.physical_id = disk.logical_id = (disk.logical_id[0],
|
1176 | c4feafe8 | Iustin Pop | utils.PathJoin(file_storage_dir, |
1177 | c4feafe8 | Iustin Pop | inst.name, |
1178 | 3721d2fe | Guido Trotter | disk_fname)) |
1179 | b23c4333 | Manuel Franceschini | |
1180 | 1fc34c48 | Michael Hanselmann | # Force update of ssconf files
|
1181 | 1fc34c48 | Michael Hanselmann | self._config_data.cluster.serial_no += 1 |
1182 | 1fc34c48 | Michael Hanselmann | |
1183 | fc95f88f | Iustin Pop | self._config_data.instances[inst.name] = inst
|
1184 | fc95f88f | Iustin Pop | self._WriteConfig()
|
1185 | fc95f88f | Iustin Pop | |
1186 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1187 | a8083063 | Iustin Pop | def MarkInstanceDown(self, instance_name): |
1188 | a8083063 | Iustin Pop | """Mark the status of an instance to down in the configuration.
|
1189 | a8083063 | Iustin Pop |
|
1190 | a8083063 | Iustin Pop | """
|
1191 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, False) |
1192 | a8083063 | Iustin Pop | |
1193 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceList(self): |
1194 | 94bbfece | Iustin Pop | """Get the list of instances.
|
1195 | 94bbfece | Iustin Pop |
|
1196 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
1197 | 94bbfece | Iustin Pop |
|
1198 | 94bbfece | Iustin Pop | """
|
1199 | 94bbfece | Iustin Pop | return self._config_data.instances.keys() |
1200 | 94bbfece | Iustin Pop | |
1201 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1202 | a8083063 | Iustin Pop | def GetInstanceList(self): |
1203 | a8083063 | Iustin Pop | """Get the list of instances.
|
1204 | a8083063 | Iustin Pop |
|
1205 | c41eea6e | Iustin Pop | @return: array of instances, ex. ['instance2.example.com',
|
1206 | c41eea6e | Iustin Pop | 'instance1.example.com']
|
1207 | a8083063 | Iustin Pop |
|
1208 | a8083063 | Iustin Pop | """
|
1209 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceList() |
1210 | a8083063 | Iustin Pop | |
1211 | a8083063 | Iustin Pop | def ExpandInstanceName(self, short_name): |
1212 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
1213 | a8083063 | Iustin Pop |
|
1214 | a8083063 | Iustin Pop | """
|
1215 | fe698b38 | Michael Hanselmann | # Locking is done in L{ConfigWriter.GetInstanceList}
|
1216 | fe698b38 | Michael Hanselmann | return _MatchNameComponentIgnoreCase(short_name, self.GetInstanceList()) |
1217 | a8083063 | Iustin Pop | |
1218 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceInfo(self, instance_name): |
1219 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
1220 | 94bbfece | Iustin Pop |
|
1221 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
1222 | 94bbfece | Iustin Pop |
|
1223 | 94bbfece | Iustin Pop | """
|
1224 | 94bbfece | Iustin Pop | if instance_name not in self._config_data.instances: |
1225 | 94bbfece | Iustin Pop | return None |
1226 | 94bbfece | Iustin Pop | |
1227 | 94bbfece | Iustin Pop | return self._config_data.instances[instance_name] |
1228 | 94bbfece | Iustin Pop | |
1229 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1230 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
1231 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
1232 | a8083063 | Iustin Pop |
|
1233 | 5bbd3f7f | Michael Hanselmann | It takes the information from the configuration file. Other information of
|
1234 | a8083063 | Iustin Pop | an instance are taken from the live systems.
|
1235 | a8083063 | Iustin Pop |
|
1236 | c41eea6e | Iustin Pop | @param instance_name: name of the instance, e.g.
|
1237 | c41eea6e | Iustin Pop | I{instance1.example.com}
|
1238 | a8083063 | Iustin Pop |
|
1239 | c41eea6e | Iustin Pop | @rtype: L{objects.Instance}
|
1240 | c41eea6e | Iustin Pop | @return: the instance object
|
1241 | a8083063 | Iustin Pop |
|
1242 | a8083063 | Iustin Pop | """
|
1243 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceInfo(instance_name) |
1244 | a8083063 | Iustin Pop | |
1245 | 0b2de758 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1246 | 2674690b | Michael Hanselmann | def GetInstanceNodeGroups(self, instance_name, primary_only=False): |
1247 | 2674690b | Michael Hanselmann | """Returns set of node group UUIDs for instance's nodes.
|
1248 | 2674690b | Michael Hanselmann |
|
1249 | 2674690b | Michael Hanselmann | @rtype: frozenset
|
1250 | 2674690b | Michael Hanselmann |
|
1251 | 2674690b | Michael Hanselmann | """
|
1252 | 2674690b | Michael Hanselmann | instance = self._UnlockedGetInstanceInfo(instance_name)
|
1253 | 2674690b | Michael Hanselmann | if not instance: |
1254 | 2674690b | Michael Hanselmann | raise errors.ConfigurationError("Unknown instance '%s'" % instance_name) |
1255 | 2674690b | Michael Hanselmann | |
1256 | 2674690b | Michael Hanselmann | if primary_only:
|
1257 | 2674690b | Michael Hanselmann | nodes = [instance.primary_node] |
1258 | 2674690b | Michael Hanselmann | else:
|
1259 | 2674690b | Michael Hanselmann | nodes = instance.all_nodes |
1260 | 2674690b | Michael Hanselmann | |
1261 | 2674690b | Michael Hanselmann | return frozenset(self._UnlockedGetNodeInfo(node_name).group |
1262 | 2674690b | Michael Hanselmann | for node_name in nodes) |
1263 | 2674690b | Michael Hanselmann | |
1264 | 2674690b | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
1265 | 0b2de758 | Iustin Pop | def GetAllInstancesInfo(self): |
1266 | 0b2de758 | Iustin Pop | """Get the configuration of all instances.
|
1267 | 0b2de758 | Iustin Pop |
|
1268 | 0b2de758 | Iustin Pop | @rtype: dict
|
1269 | 5fcc718f | Iustin Pop | @return: dict of (instance, instance_info), where instance_info is what
|
1270 | 0b2de758 | Iustin Pop | would GetInstanceInfo return for the node
|
1271 | 0b2de758 | Iustin Pop |
|
1272 | 0b2de758 | Iustin Pop | """
|
1273 | 64d3bd52 | Guido Trotter | my_dict = dict([(instance, self._UnlockedGetInstanceInfo(instance)) |
1274 | 64d3bd52 | Guido Trotter | for instance in self._UnlockedGetInstanceList()]) |
1275 | 0b2de758 | Iustin Pop | return my_dict
|
1276 | 0b2de758 | Iustin Pop | |
1277 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1278 | 0debfb35 | Guido Trotter | def AddNode(self, node, ec_id): |
1279 | a8083063 | Iustin Pop | """Add a node to the configuration.
|
1280 | a8083063 | Iustin Pop |
|
1281 | c41eea6e | Iustin Pop | @type node: L{objects.Node}
|
1282 | c41eea6e | Iustin Pop | @param node: a Node instance
|
1283 | a8083063 | Iustin Pop |
|
1284 | a8083063 | Iustin Pop | """
|
1285 | 099c52ad | Iustin Pop | logging.info("Adding node %s to configuration", node.name)
|
1286 | d8470559 | Michael Hanselmann | |
1287 | 0debfb35 | Guido Trotter | self._EnsureUUID(node, ec_id)
|
1288 | 430b923c | Iustin Pop | |
1289 | b989e85d | Iustin Pop | node.serial_no = 1
|
1290 | d693c864 | Iustin Pop | node.ctime = node.mtime = time.time() |
1291 | f936c153 | Iustin Pop | self._UnlockedAddNodeToGroup(node.name, node.group)
|
1292 | a8083063 | Iustin Pop | self._config_data.nodes[node.name] = node
|
1293 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1294 | a8083063 | Iustin Pop | self._WriteConfig()
|
1295 | a8083063 | Iustin Pop | |
1296 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1297 | a8083063 | Iustin Pop | def RemoveNode(self, node_name): |
1298 | a8083063 | Iustin Pop | """Remove a node from the configuration.
|
1299 | a8083063 | Iustin Pop |
|
1300 | a8083063 | Iustin Pop | """
|
1301 | 099c52ad | Iustin Pop | logging.info("Removing node %s from configuration", node_name)
|
1302 | d8470559 | Michael Hanselmann | |
1303 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1304 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown node '%s'" % node_name) |
1305 | a8083063 | Iustin Pop | |
1306 | 190e3cb6 | Guido Trotter | self._UnlockedRemoveNodeFromGroup(self._config_data.nodes[node_name]) |
1307 | a8083063 | Iustin Pop | del self._config_data.nodes[node_name] |
1308 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1309 | a8083063 | Iustin Pop | self._WriteConfig()
|
1310 | a8083063 | Iustin Pop | |
1311 | a8083063 | Iustin Pop | def ExpandNodeName(self, short_name): |
1312 | fe698b38 | Michael Hanselmann | """Attempt to expand an incomplete node name.
|
1313 | a8083063 | Iustin Pop |
|
1314 | a8083063 | Iustin Pop | """
|
1315 | fe698b38 | Michael Hanselmann | # Locking is done in L{ConfigWriter.GetNodeList}
|
1316 | fe698b38 | Michael Hanselmann | return _MatchNameComponentIgnoreCase(short_name, self.GetNodeList()) |
1317 | a8083063 | Iustin Pop | |
1318 | f78ede4e | Guido Trotter | def _UnlockedGetNodeInfo(self, node_name): |
1319 | a8083063 | Iustin Pop | """Get the configuration of a node, as stored in the config.
|
1320 | a8083063 | Iustin Pop |
|
1321 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1322 | c41eea6e | Iustin Pop | held.
|
1323 | f78ede4e | Guido Trotter |
|
1324 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1325 | a8083063 | Iustin Pop |
|
1326 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1327 | c41eea6e | Iustin Pop | @return: the node object
|
1328 | a8083063 | Iustin Pop |
|
1329 | a8083063 | Iustin Pop | """
|
1330 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1331 | a8083063 | Iustin Pop | return None |
1332 | a8083063 | Iustin Pop | |
1333 | a8083063 | Iustin Pop | return self._config_data.nodes[node_name] |
1334 | a8083063 | Iustin Pop | |
1335 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1336 | f78ede4e | Guido Trotter | def GetNodeInfo(self, node_name): |
1337 | f78ede4e | Guido Trotter | """Get the configuration of a node, as stored in the config.
|
1338 | f78ede4e | Guido Trotter |
|
1339 | c41eea6e | Iustin Pop | This is just a locked wrapper over L{_UnlockedGetNodeInfo}.
|
1340 | f78ede4e | Guido Trotter |
|
1341 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1342 | c41eea6e | Iustin Pop |
|
1343 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1344 | c41eea6e | Iustin Pop | @return: the node object
|
1345 | f78ede4e | Guido Trotter |
|
1346 | f78ede4e | Guido Trotter | """
|
1347 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeInfo(node_name) |
1348 | f78ede4e | Guido Trotter | |
1349 | 8bf9e9a5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1350 | 8bf9e9a5 | Iustin Pop | def GetNodeInstances(self, node_name): |
1351 | 8bf9e9a5 | Iustin Pop | """Get the instances of a node, as stored in the config.
|
1352 | 8bf9e9a5 | Iustin Pop |
|
1353 | 8bf9e9a5 | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1354 | 8bf9e9a5 | Iustin Pop |
|
1355 | 8bf9e9a5 | Iustin Pop | @rtype: (list, list)
|
1356 | 8bf9e9a5 | Iustin Pop | @return: a tuple with two lists: the primary and the secondary instances
|
1357 | 8bf9e9a5 | Iustin Pop |
|
1358 | 8bf9e9a5 | Iustin Pop | """
|
1359 | 8bf9e9a5 | Iustin Pop | pri = [] |
1360 | 8bf9e9a5 | Iustin Pop | sec = [] |
1361 | 8bf9e9a5 | Iustin Pop | for inst in self._config_data.instances.values(): |
1362 | 8bf9e9a5 | Iustin Pop | if inst.primary_node == node_name:
|
1363 | 8bf9e9a5 | Iustin Pop | pri.append(inst.name) |
1364 | 8bf9e9a5 | Iustin Pop | if node_name in inst.secondary_nodes: |
1365 | 8bf9e9a5 | Iustin Pop | sec.append(inst.name) |
1366 | 8bf9e9a5 | Iustin Pop | return (pri, sec)
|
1367 | 8bf9e9a5 | Iustin Pop | |
1368 | f78ede4e | Guido Trotter | def _UnlockedGetNodeList(self): |
1369 | a8083063 | Iustin Pop | """Return the list of nodes which are in the configuration.
|
1370 | a8083063 | Iustin Pop |
|
1371 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1372 | c41eea6e | Iustin Pop | held.
|
1373 | c41eea6e | Iustin Pop |
|
1374 | c41eea6e | Iustin Pop | @rtype: list
|
1375 | f78ede4e | Guido Trotter |
|
1376 | a8083063 | Iustin Pop | """
|
1377 | a8083063 | Iustin Pop | return self._config_data.nodes.keys() |
1378 | a8083063 | Iustin Pop | |
1379 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1380 | f78ede4e | Guido Trotter | def GetNodeList(self): |
1381 | f78ede4e | Guido Trotter | """Return the list of nodes which are in the configuration.
|
1382 | f78ede4e | Guido Trotter |
|
1383 | f78ede4e | Guido Trotter | """
|
1384 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeList() |
1385 | f78ede4e | Guido Trotter | |
1386 | 6819dc49 | Iustin Pop | def _UnlockedGetOnlineNodeList(self): |
1387 | 94a02bb5 | Iustin Pop | """Return the list of nodes which are online.
|
1388 | 94a02bb5 | Iustin Pop |
|
1389 | 94a02bb5 | Iustin Pop | """
|
1390 | 94a02bb5 | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
1391 | 94a02bb5 | Iustin Pop | for node in self._UnlockedGetNodeList()] |
1392 | 94a02bb5 | Iustin Pop | return [node.name for node in all_nodes if not node.offline] |
1393 | 94a02bb5 | Iustin Pop | |
1394 | 94a02bb5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1395 | 6819dc49 | Iustin Pop | def GetOnlineNodeList(self): |
1396 | 6819dc49 | Iustin Pop | """Return the list of nodes which are online.
|
1397 | 6819dc49 | Iustin Pop |
|
1398 | 6819dc49 | Iustin Pop | """
|
1399 | 6819dc49 | Iustin Pop | return self._UnlockedGetOnlineNodeList() |
1400 | 6819dc49 | Iustin Pop | |
1401 | 6819dc49 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1402 | 075b62ca | Iustin Pop | def GetVmCapableNodeList(self): |
1403 | 075b62ca | Iustin Pop | """Return the list of nodes which are not vm capable.
|
1404 | 075b62ca | Iustin Pop |
|
1405 | 075b62ca | Iustin Pop | """
|
1406 | 075b62ca | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
1407 | 075b62ca | Iustin Pop | for node in self._UnlockedGetNodeList()] |
1408 | 075b62ca | Iustin Pop | return [node.name for node in all_nodes if node.vm_capable] |
1409 | 075b62ca | Iustin Pop | |
1410 | 075b62ca | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1411 | 8bf9e9a5 | Iustin Pop | def GetNonVmCapableNodeList(self): |
1412 | 8bf9e9a5 | Iustin Pop | """Return the list of nodes which are not vm capable.
|
1413 | 8bf9e9a5 | Iustin Pop |
|
1414 | 8bf9e9a5 | Iustin Pop | """
|
1415 | 8bf9e9a5 | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
1416 | 8bf9e9a5 | Iustin Pop | for node in self._UnlockedGetNodeList()] |
1417 | 8bf9e9a5 | Iustin Pop | return [node.name for node in all_nodes if not node.vm_capable] |
1418 | 8bf9e9a5 | Iustin Pop | |
1419 | 8bf9e9a5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1420 | d65e5776 | Iustin Pop | def GetAllNodesInfo(self): |
1421 | d65e5776 | Iustin Pop | """Get the configuration of all nodes.
|
1422 | d65e5776 | Iustin Pop |
|
1423 | d65e5776 | Iustin Pop | @rtype: dict
|
1424 | ec0292f1 | Iustin Pop | @return: dict of (node, node_info), where node_info is what
|
1425 | d65e5776 | Iustin Pop | would GetNodeInfo return for the node
|
1426 | d65e5776 | Iustin Pop |
|
1427 | d65e5776 | Iustin Pop | """
|
1428 | d65e5776 | Iustin Pop | my_dict = dict([(node, self._UnlockedGetNodeInfo(node)) |
1429 | d65e5776 | Iustin Pop | for node in self._UnlockedGetNodeList()]) |
1430 | d65e5776 | Iustin Pop | return my_dict
|
1431 | d65e5776 | Iustin Pop | |
1432 | 9d5b1371 | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
1433 | 9d5b1371 | Michael Hanselmann | def GetNodeGroupsFromNodes(self, nodes): |
1434 | 9d5b1371 | Michael Hanselmann | """Returns groups for a list of nodes.
|
1435 | 9d5b1371 | Michael Hanselmann |
|
1436 | 9d5b1371 | Michael Hanselmann | @type nodes: list of string
|
1437 | 9d5b1371 | Michael Hanselmann | @param nodes: List of node names
|
1438 | 9d5b1371 | Michael Hanselmann | @rtype: frozenset
|
1439 | 9d5b1371 | Michael Hanselmann |
|
1440 | 9d5b1371 | Michael Hanselmann | """
|
1441 | 9d5b1371 | Michael Hanselmann | return frozenset(self._UnlockedGetNodeInfo(name).group for name in nodes) |
1442 | 9d5b1371 | Michael Hanselmann | |
1443 | 23f06b2b | Iustin Pop | def _UnlockedGetMasterCandidateStats(self, exceptions=None): |
1444 | ec0292f1 | Iustin Pop | """Get the number of current and maximum desired and possible candidates.
|
1445 | ec0292f1 | Iustin Pop |
|
1446 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1447 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1448 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1449 | e623dbe3 | Guido Trotter | @return: tuple of (current, desired and possible, possible)
|
1450 | ec0292f1 | Iustin Pop |
|
1451 | ec0292f1 | Iustin Pop | """
|
1452 | e623dbe3 | Guido Trotter | mc_now = mc_should = mc_max = 0
|
1453 | 23f06b2b | Iustin Pop | for node in self._config_data.nodes.values(): |
1454 | 23f06b2b | Iustin Pop | if exceptions and node.name in exceptions: |
1455 | 23f06b2b | Iustin Pop | continue
|
1456 | 490acd18 | Iustin Pop | if not (node.offline or node.drained) and node.master_capable: |
1457 | ec0292f1 | Iustin Pop | mc_max += 1
|
1458 | ec0292f1 | Iustin Pop | if node.master_candidate:
|
1459 | ec0292f1 | Iustin Pop | mc_now += 1
|
1460 | e623dbe3 | Guido Trotter | mc_should = min(mc_max, self._config_data.cluster.candidate_pool_size) |
1461 | e623dbe3 | Guido Trotter | return (mc_now, mc_should, mc_max)
|
1462 | ec0292f1 | Iustin Pop | |
1463 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1464 | 23f06b2b | Iustin Pop | def GetMasterCandidateStats(self, exceptions=None): |
1465 | ec0292f1 | Iustin Pop | """Get the number of current and maximum possible candidates.
|
1466 | ec0292f1 | Iustin Pop |
|
1467 | ec0292f1 | Iustin Pop | This is just a wrapper over L{_UnlockedGetMasterCandidateStats}.
|
1468 | ec0292f1 | Iustin Pop |
|
1469 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1470 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1471 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1472 | ec0292f1 | Iustin Pop | @return: tuple of (current, max)
|
1473 | ec0292f1 | Iustin Pop |
|
1474 | ec0292f1 | Iustin Pop | """
|
1475 | 23f06b2b | Iustin Pop | return self._UnlockedGetMasterCandidateStats(exceptions) |
1476 | ec0292f1 | Iustin Pop | |
1477 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
1478 | 44485f49 | Guido Trotter | def MaintainCandidatePool(self, exceptions): |
1479 | ec0292f1 | Iustin Pop | """Try to grow the candidate pool to the desired size.
|
1480 | ec0292f1 | Iustin Pop |
|
1481 | 44485f49 | Guido Trotter | @type exceptions: list
|
1482 | 44485f49 | Guido Trotter | @param exceptions: if passed, list of nodes that should be ignored
|
1483 | ec0292f1 | Iustin Pop | @rtype: list
|
1484 | ee513a66 | Iustin Pop | @return: list with the adjusted nodes (L{objects.Node} instances)
|
1485 | ec0292f1 | Iustin Pop |
|
1486 | ec0292f1 | Iustin Pop | """
|
1487 | 44485f49 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats(exceptions)
|
1488 | ec0292f1 | Iustin Pop | mod_list = [] |
1489 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
1490 | ec0292f1 | Iustin Pop | node_list = self._config_data.nodes.keys()
|
1491 | ec0292f1 | Iustin Pop | random.shuffle(node_list) |
1492 | ec0292f1 | Iustin Pop | for name in node_list: |
1493 | ec0292f1 | Iustin Pop | if mc_now >= mc_max:
|
1494 | ec0292f1 | Iustin Pop | break
|
1495 | ec0292f1 | Iustin Pop | node = self._config_data.nodes[name]
|
1496 | 44485f49 | Guido Trotter | if (node.master_candidate or node.offline or node.drained or |
1497 | 490acd18 | Iustin Pop | node.name in exceptions or not node.master_capable): |
1498 | ec0292f1 | Iustin Pop | continue
|
1499 | ee513a66 | Iustin Pop | mod_list.append(node) |
1500 | ec0292f1 | Iustin Pop | node.master_candidate = True
|
1501 | ec0292f1 | Iustin Pop | node.serial_no += 1
|
1502 | ec0292f1 | Iustin Pop | mc_now += 1
|
1503 | ec0292f1 | Iustin Pop | if mc_now != mc_max:
|
1504 | ec0292f1 | Iustin Pop | # this should not happen
|
1505 | ec0292f1 | Iustin Pop | logging.warning("Warning: MaintainCandidatePool didn't manage to"
|
1506 | ec0292f1 | Iustin Pop | " fill the candidate pool (%d/%d)", mc_now, mc_max)
|
1507 | ec0292f1 | Iustin Pop | if mod_list:
|
1508 | ec0292f1 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1509 | ec0292f1 | Iustin Pop | self._WriteConfig()
|
1510 | ec0292f1 | Iustin Pop | |
1511 | ec0292f1 | Iustin Pop | return mod_list
|
1512 | ec0292f1 | Iustin Pop | |
1513 | 190e3cb6 | Guido Trotter | def _UnlockedAddNodeToGroup(self, node_name, nodegroup_uuid): |
1514 | 190e3cb6 | Guido Trotter | """Add a given node to the specified group.
|
1515 | 190e3cb6 | Guido Trotter |
|
1516 | 190e3cb6 | Guido Trotter | """
|
1517 | 190e3cb6 | Guido Trotter | if nodegroup_uuid not in self._config_data.nodegroups: |
1518 | 190e3cb6 | Guido Trotter | # This can happen if a node group gets deleted between its lookup and
|
1519 | 190e3cb6 | Guido Trotter | # when we're adding the first node to it, since we don't keep a lock in
|
1520 | 190e3cb6 | Guido Trotter | # the meantime. It's ok though, as we'll fail cleanly if the node group
|
1521 | 190e3cb6 | Guido Trotter | # is not found anymore.
|
1522 | f936c153 | Iustin Pop | raise errors.OpExecError("Unknown node group: %s" % nodegroup_uuid) |
1523 | 190e3cb6 | Guido Trotter | if node_name not in self._config_data.nodegroups[nodegroup_uuid].members: |
1524 | 190e3cb6 | Guido Trotter | self._config_data.nodegroups[nodegroup_uuid].members.append(node_name)
|
1525 | 190e3cb6 | Guido Trotter | |
1526 | 190e3cb6 | Guido Trotter | def _UnlockedRemoveNodeFromGroup(self, node): |
1527 | 190e3cb6 | Guido Trotter | """Remove a given node from its group.
|
1528 | 190e3cb6 | Guido Trotter |
|
1529 | 190e3cb6 | Guido Trotter | """
|
1530 | f936c153 | Iustin Pop | nodegroup = node.group |
1531 | 190e3cb6 | Guido Trotter | if nodegroup not in self._config_data.nodegroups: |
1532 | f936c153 | Iustin Pop | logging.warning("Warning: node '%s' has unknown node group '%s'"
|
1533 | 190e3cb6 | Guido Trotter | " (while being removed from it)", node.name, nodegroup)
|
1534 | 190e3cb6 | Guido Trotter | nodegroup_obj = self._config_data.nodegroups[nodegroup]
|
1535 | 190e3cb6 | Guido Trotter | if node.name not in nodegroup_obj.members: |
1536 | f936c153 | Iustin Pop | logging.warning("Warning: node '%s' not a member of its node group '%s'"
|
1537 | 190e3cb6 | Guido Trotter | " (while being removed from it)", node.name, nodegroup)
|
1538 | 190e3cb6 | Guido Trotter | else:
|
1539 | 190e3cb6 | Guido Trotter | nodegroup_obj.members.remove(node.name) |
1540 | 190e3cb6 | Guido Trotter | |
1541 | a8083063 | Iustin Pop | def _BumpSerialNo(self): |
1542 | a8083063 | Iustin Pop | """Bump up the serial number of the config.
|
1543 | a8083063 | Iustin Pop |
|
1544 | a8083063 | Iustin Pop | """
|
1545 | 9d38c6e1 | Iustin Pop | self._config_data.serial_no += 1 |
1546 | d693c864 | Iustin Pop | self._config_data.mtime = time.time()
|
1547 | a8083063 | Iustin Pop | |
1548 | 76d5d3a3 | Iustin Pop | def _AllUUIDObjects(self): |
1549 | 76d5d3a3 | Iustin Pop | """Returns all objects with uuid attributes.
|
1550 | 76d5d3a3 | Iustin Pop |
|
1551 | 76d5d3a3 | Iustin Pop | """
|
1552 | 76d5d3a3 | Iustin Pop | return (self._config_data.instances.values() + |
1553 | 76d5d3a3 | Iustin Pop | self._config_data.nodes.values() +
|
1554 | 3df43542 | Guido Trotter | self._config_data.nodegroups.values() +
|
1555 | 76d5d3a3 | Iustin Pop | [self._config_data.cluster])
|
1556 | 76d5d3a3 | Iustin Pop | |
1557 | eb180fe2 | Iustin Pop | def _OpenConfig(self, accept_foreign): |
1558 | a8083063 | Iustin Pop | """Read the config data from disk.
|
1559 | a8083063 | Iustin Pop |
|
1560 | a8083063 | Iustin Pop | """
|
1561 | 13998ef2 | Michael Hanselmann | raw_data = utils.ReadFile(self._cfg_file)
|
1562 | 13998ef2 | Michael Hanselmann | |
1563 | a8083063 | Iustin Pop | try:
|
1564 | 13998ef2 | Michael Hanselmann | data = objects.ConfigData.FromDict(serializer.Load(raw_data)) |
1565 | 13998ef2 | Michael Hanselmann | except Exception, err: |
1566 | 13998ef2 | Michael Hanselmann | raise errors.ConfigurationError(err)
|
1567 | 5b263ed7 | Michael Hanselmann | |
1568 | 5b263ed7 | Michael Hanselmann | # Make sure the configuration has the right version
|
1569 | 5b263ed7 | Michael Hanselmann | _ValidateConfig(data) |
1570 | 5b263ed7 | Michael Hanselmann | |
1571 | a8083063 | Iustin Pop | if (not hasattr(data, 'cluster') or |
1572 | 243cdbcc | Michael Hanselmann | not hasattr(data.cluster, 'rsahostkeypub')): |
1573 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Incomplete configuration" |
1574 | 243cdbcc | Michael Hanselmann | " (missing cluster.rsahostkeypub)")
|
1575 | 90d726a8 | Iustin Pop | |
1576 | eb180fe2 | Iustin Pop | if data.cluster.master_node != self._my_hostname and not accept_foreign: |
1577 | eb180fe2 | Iustin Pop | msg = ("The configuration denotes node %s as master, while my"
|
1578 | eb180fe2 | Iustin Pop | " hostname is %s; opening a foreign configuration is only"
|
1579 | eb180fe2 | Iustin Pop | " possible in accept_foreign mode" %
|
1580 | eb180fe2 | Iustin Pop | (data.cluster.master_node, self._my_hostname))
|
1581 | eb180fe2 | Iustin Pop | raise errors.ConfigurationError(msg)
|
1582 | eb180fe2 | Iustin Pop | |
1583 | 90d726a8 | Iustin Pop | # Upgrade configuration if needed
|
1584 | 90d726a8 | Iustin Pop | data.UpgradeConfig() |
1585 | 90d726a8 | Iustin Pop | |
1586 | a8083063 | Iustin Pop | self._config_data = data
|
1587 | 3c7f6c44 | Iustin Pop | # reset the last serial as -1 so that the next write will cause
|
1588 | 0779e3aa | Iustin Pop | # ssconf update
|
1589 | 0779e3aa | Iustin Pop | self._last_cluster_serial = -1 |
1590 | a8083063 | Iustin Pop | |
1591 | 76d5d3a3 | Iustin Pop | # And finally run our (custom) config upgrade sequence
|
1592 | 76d5d3a3 | Iustin Pop | self._UpgradeConfig()
|
1593 | 76d5d3a3 | Iustin Pop | |
1594 | bd407597 | Iustin Pop | self._cfg_id = utils.GetFileID(path=self._cfg_file) |
1595 | bd407597 | Iustin Pop | |
1596 | 76d5d3a3 | Iustin Pop | def _UpgradeConfig(self): |
1597 | 76d5d3a3 | Iustin Pop | """Run upgrade steps that cannot be done purely in the objects.
|
1598 | 76d5d3a3 | Iustin Pop |
|
1599 | 76d5d3a3 | Iustin Pop | This is because some data elements need uniqueness across the
|
1600 | 76d5d3a3 | Iustin Pop | whole configuration, etc.
|
1601 | 76d5d3a3 | Iustin Pop |
|
1602 | 111c4e2f | Guido Trotter | @warning: this function will call L{_WriteConfig()}, but also
|
1603 | 111c4e2f | Guido Trotter | L{DropECReservations} so it needs to be called only from a
|
1604 | 111c4e2f | Guido Trotter | "safe" place (the constructor). If one wanted to call it with
|
1605 | 111c4e2f | Guido Trotter | the lock held, a DropECReservationUnlocked would need to be
|
1606 | 111c4e2f | Guido Trotter | created first, to avoid causing deadlock.
|
1607 | 76d5d3a3 | Iustin Pop |
|
1608 | 76d5d3a3 | Iustin Pop | """
|
1609 | 76d5d3a3 | Iustin Pop | modified = False
|
1610 | 76d5d3a3 | Iustin Pop | for item in self._AllUUIDObjects(): |
1611 | 76d5d3a3 | Iustin Pop | if item.uuid is None: |
1612 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(_UPGRADE_CONFIG_JID)
|
1613 | 76d5d3a3 | Iustin Pop | modified = True
|
1614 | f9e81396 | Guido Trotter | if not self._config_data.nodegroups: |
1615 | 75cf411a | Adeodato Simo | default_nodegroup_name = constants.INITIAL_NODE_GROUP_NAME |
1616 | 75cf411a | Adeodato Simo | default_nodegroup = objects.NodeGroup(name=default_nodegroup_name, |
1617 | 75cf411a | Adeodato Simo | members=[]) |
1618 | e11a1b77 | Adeodato Simo | self._UnlockedAddNodeGroup(default_nodegroup, _UPGRADE_CONFIG_JID, True) |
1619 | f9e81396 | Guido Trotter | modified = True
|
1620 | 190e3cb6 | Guido Trotter | for node in self._config_data.nodes.values(): |
1621 | f936c153 | Iustin Pop | if not node.group: |
1622 | f936c153 | Iustin Pop | node.group = self.LookupNodeGroup(None) |
1623 | 190e3cb6 | Guido Trotter | modified = True
|
1624 | 190e3cb6 | Guido Trotter | # This is technically *not* an upgrade, but needs to be done both when
|
1625 | 190e3cb6 | Guido Trotter | # nodegroups are being added, and upon normally loading the config,
|
1626 | 190e3cb6 | Guido Trotter | # because the members list of a node group is discarded upon
|
1627 | 190e3cb6 | Guido Trotter | # serializing/deserializing the object.
|
1628 | f936c153 | Iustin Pop | self._UnlockedAddNodeToGroup(node.name, node.group)
|
1629 | 76d5d3a3 | Iustin Pop | if modified:
|
1630 | 76d5d3a3 | Iustin Pop | self._WriteConfig()
|
1631 | 4fae38c5 | Guido Trotter | # This is ok even if it acquires the internal lock, as _UpgradeConfig is
|
1632 | 4fae38c5 | Guido Trotter | # only called at config init time, without the lock held
|
1633 | 4fae38c5 | Guido Trotter | self.DropECReservations(_UPGRADE_CONFIG_JID)
|
1634 | 4fae38c5 | Guido Trotter | |
1635 | a4eae71f | Michael Hanselmann | def _DistributeConfig(self, feedback_fn): |
1636 | a8083063 | Iustin Pop | """Distribute the configuration to the other nodes.
|
1637 | a8083063 | Iustin Pop |
|
1638 | a8083063 | Iustin Pop | Currently, this only copies the configuration file. In the future,
|
1639 | a8083063 | Iustin Pop | it could be used to encapsulate the 2/3-phase update mechanism.
|
1640 | a8083063 | Iustin Pop |
|
1641 | a8083063 | Iustin Pop | """
|
1642 | a8083063 | Iustin Pop | if self._offline: |
1643 | a8083063 | Iustin Pop | return True |
1644 | a4eae71f | Michael Hanselmann | |
1645 | a8083063 | Iustin Pop | bad = False
|
1646 | a8083063 | Iustin Pop | |
1647 | 6a5b8b4b | Iustin Pop | node_list = [] |
1648 | 6a5b8b4b | Iustin Pop | addr_list = [] |
1649 | 6a5b8b4b | Iustin Pop | myhostname = self._my_hostname
|
1650 | 6b294c53 | Iustin Pop | # we can skip checking whether _UnlockedGetNodeInfo returns None
|
1651 | 6b294c53 | Iustin Pop | # since the node list comes from _UnlocketGetNodeList, and we are
|
1652 | 6b294c53 | Iustin Pop | # called with the lock held, so no modifications should take place
|
1653 | 6b294c53 | Iustin Pop | # in between
|
1654 | 6a5b8b4b | Iustin Pop | for node_name in self._UnlockedGetNodeList(): |
1655 | 6a5b8b4b | Iustin Pop | if node_name == myhostname:
|
1656 | 6a5b8b4b | Iustin Pop | continue
|
1657 | 6a5b8b4b | Iustin Pop | node_info = self._UnlockedGetNodeInfo(node_name)
|
1658 | 6a5b8b4b | Iustin Pop | if not node_info.master_candidate: |
1659 | 6a5b8b4b | Iustin Pop | continue
|
1660 | 6a5b8b4b | Iustin Pop | node_list.append(node_info.name) |
1661 | 6a5b8b4b | Iustin Pop | addr_list.append(node_info.primary_ip) |
1662 | 6b294c53 | Iustin Pop | |
1663 | 6a5b8b4b | Iustin Pop | result = rpc.RpcRunner.call_upload_file(node_list, self._cfg_file,
|
1664 | 6a5b8b4b | Iustin Pop | address_list=addr_list) |
1665 | 1b54fc6c | Guido Trotter | for to_node, to_result in result.items(): |
1666 | 3cebe102 | Michael Hanselmann | msg = to_result.fail_msg |
1667 | 1b54fc6c | Guido Trotter | if msg:
|
1668 | 1b54fc6c | Guido Trotter | msg = ("Copy of file %s to node %s failed: %s" %
|
1669 | dd7db360 | Iustin Pop | (self._cfg_file, to_node, msg))
|
1670 | 1b54fc6c | Guido Trotter | logging.error(msg) |
1671 | a4eae71f | Michael Hanselmann | |
1672 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1673 | a4eae71f | Michael Hanselmann | feedback_fn(msg) |
1674 | a4eae71f | Michael Hanselmann | |
1675 | a8083063 | Iustin Pop | bad = True
|
1676 | a4eae71f | Michael Hanselmann | |
1677 | a8083063 | Iustin Pop | return not bad |
1678 | a8083063 | Iustin Pop | |
1679 | a4eae71f | Michael Hanselmann | def _WriteConfig(self, destination=None, feedback_fn=None): |
1680 | a8083063 | Iustin Pop | """Write the configuration data to persistent storage.
|
1681 | a8083063 | Iustin Pop |
|
1682 | a8083063 | Iustin Pop | """
|
1683 | a4eae71f | Michael Hanselmann | assert feedback_fn is None or callable(feedback_fn) |
1684 | a4eae71f | Michael Hanselmann | |
1685 | d2231b8c | Iustin Pop | # Warn on config errors, but don't abort the save - the
|
1686 | d2231b8c | Iustin Pop | # configuration has already been modified, and we can't revert;
|
1687 | d2231b8c | Iustin Pop | # the best we can do is to warn the user and save as is, leaving
|
1688 | d2231b8c | Iustin Pop | # recovery to the user
|
1689 | 4a89c54a | Iustin Pop | config_errors = self._UnlockedVerifyConfig()
|
1690 | 4a89c54a | Iustin Pop | if config_errors:
|
1691 | d2231b8c | Iustin Pop | errmsg = ("Configuration data is not consistent: %s" %
|
1692 | 1f864b60 | Iustin Pop | (utils.CommaJoin(config_errors))) |
1693 | d2231b8c | Iustin Pop | logging.critical(errmsg) |
1694 | d2231b8c | Iustin Pop | if feedback_fn:
|
1695 | d2231b8c | Iustin Pop | feedback_fn(errmsg) |
1696 | d2231b8c | Iustin Pop | |
1697 | a8083063 | Iustin Pop | if destination is None: |
1698 | a8083063 | Iustin Pop | destination = self._cfg_file
|
1699 | a8083063 | Iustin Pop | self._BumpSerialNo()
|
1700 | 8d14b30d | Iustin Pop | txt = serializer.Dump(self._config_data.ToDict())
|
1701 | 13998ef2 | Michael Hanselmann | |
1702 | e60c73a1 | René Nussbaumer | getents = self._getents()
|
1703 | bd407597 | Iustin Pop | try:
|
1704 | bd407597 | Iustin Pop | fd = utils.SafeWriteFile(destination, self._cfg_id, data=txt,
|
1705 | bd407597 | Iustin Pop | close=False, gid=getents.confd_gid, mode=0640) |
1706 | bd407597 | Iustin Pop | except errors.LockError:
|
1707 | bd407597 | Iustin Pop | raise errors.ConfigurationError("The configuration file has been" |
1708 | bd407597 | Iustin Pop | " modified since the last write, cannot"
|
1709 | bd407597 | Iustin Pop | " update")
|
1710 | bd407597 | Iustin Pop | try:
|
1711 | bd407597 | Iustin Pop | self._cfg_id = utils.GetFileID(fd=fd)
|
1712 | bd407597 | Iustin Pop | finally:
|
1713 | bd407597 | Iustin Pop | os.close(fd) |
1714 | 13998ef2 | Michael Hanselmann | |
1715 | 14e15659 | Iustin Pop | self.write_count += 1 |
1716 | 3d3a04bc | Iustin Pop | |
1717 | f56618e0 | Iustin Pop | # and redistribute the config file to master candidates
|
1718 | a4eae71f | Michael Hanselmann | self._DistributeConfig(feedback_fn)
|
1719 | a8083063 | Iustin Pop | |
1720 | 54d1a06e | Michael Hanselmann | # Write ssconf files on all nodes (including locally)
|
1721 | 0779e3aa | Iustin Pop | if self._last_cluster_serial < self._config_data.cluster.serial_no: |
1722 | d9a855f1 | Michael Hanselmann | if not self._offline: |
1723 | cd34faf2 | Michael Hanselmann | result = rpc.RpcRunner.call_write_ssconf_files( |
1724 | 6819dc49 | Iustin Pop | self._UnlockedGetOnlineNodeList(),
|
1725 | e1e75d00 | Iustin Pop | self._UnlockedGetSsconfValues())
|
1726 | a4eae71f | Michael Hanselmann | |
1727 | e1e75d00 | Iustin Pop | for nname, nresu in result.items(): |
1728 | 3cebe102 | Michael Hanselmann | msg = nresu.fail_msg |
1729 | e1e75d00 | Iustin Pop | if msg:
|
1730 | a4eae71f | Michael Hanselmann | errmsg = ("Error while uploading ssconf files to"
|
1731 | a4eae71f | Michael Hanselmann | " node %s: %s" % (nname, msg))
|
1732 | a4eae71f | Michael Hanselmann | logging.warning(errmsg) |
1733 | a4eae71f | Michael Hanselmann | |
1734 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1735 | a4eae71f | Michael Hanselmann | feedback_fn(errmsg) |
1736 | a4eae71f | Michael Hanselmann | |
1737 | 0779e3aa | Iustin Pop | self._last_cluster_serial = self._config_data.cluster.serial_no |
1738 | 54d1a06e | Michael Hanselmann | |
1739 | 03d1dba2 | Michael Hanselmann | def _UnlockedGetSsconfValues(self): |
1740 | 054596f0 | Iustin Pop | """Return the values needed by ssconf.
|
1741 | 054596f0 | Iustin Pop |
|
1742 | 054596f0 | Iustin Pop | @rtype: dict
|
1743 | 054596f0 | Iustin Pop | @return: a dictionary with keys the ssconf names and values their
|
1744 | 054596f0 | Iustin Pop | associated value
|
1745 | 054596f0 | Iustin Pop |
|
1746 | 054596f0 | Iustin Pop | """
|
1747 | a3316e4a | Iustin Pop | fn = "\n".join
|
1748 | 81a49123 | Iustin Pop | instance_names = utils.NiceSort(self._UnlockedGetInstanceList())
|
1749 | a3316e4a | Iustin Pop | node_names = utils.NiceSort(self._UnlockedGetNodeList())
|
1750 | a3316e4a | Iustin Pop | node_info = [self._UnlockedGetNodeInfo(name) for name in node_names] |
1751 | c3029d0a | Luca Bigliardi | node_pri_ips = ["%s %s" % (ninfo.name, ninfo.primary_ip)
|
1752 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1753 | c3029d0a | Luca Bigliardi | node_snd_ips = ["%s %s" % (ninfo.name, ninfo.secondary_ip)
|
1754 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1755 | a3316e4a | Iustin Pop | |
1756 | 81a49123 | Iustin Pop | instance_data = fn(instance_names) |
1757 | a3316e4a | Iustin Pop | off_data = fn(node.name for node in node_info if node.offline) |
1758 | 81a49123 | Iustin Pop | on_data = fn(node.name for node in node_info if not node.offline) |
1759 | a3316e4a | Iustin Pop | mc_data = fn(node.name for node in node_info if node.master_candidate) |
1760 | 8113a52e | Luca Bigliardi | mc_ips_data = fn(node.primary_ip for node in node_info |
1761 | 8113a52e | Luca Bigliardi | if node.master_candidate)
|
1762 | a3316e4a | Iustin Pop | node_data = fn(node_names) |
1763 | f9780ccd | Luca Bigliardi | node_pri_ips_data = fn(node_pri_ips) |
1764 | f9780ccd | Luca Bigliardi | node_snd_ips_data = fn(node_snd_ips) |
1765 | f56618e0 | Iustin Pop | |
1766 | 054596f0 | Iustin Pop | cluster = self._config_data.cluster
|
1767 | 5d60b3bd | Iustin Pop | cluster_tags = fn(cluster.GetTags()) |
1768 | 4f7a6a10 | Iustin Pop | |
1769 | 4f7a6a10 | Iustin Pop | hypervisor_list = fn(cluster.enabled_hypervisors) |
1770 | 4f7a6a10 | Iustin Pop | |
1771 | 0fbae49a | Balazs Lecz | uid_pool = uidpool.FormatUidPool(cluster.uid_pool, separator="\n")
|
1772 | 0fbae49a | Balazs Lecz | |
1773 | 6f076453 | Guido Trotter | nodegroups = ["%s %s" % (nodegroup.uuid, nodegroup.name) for nodegroup in |
1774 | 6f076453 | Guido Trotter | self._config_data.nodegroups.values()]
|
1775 | 6f076453 | Guido Trotter | nodegroups_data = fn(utils.NiceSort(nodegroups)) |
1776 | 6f076453 | Guido Trotter | |
1777 | 2afc9238 | Iustin Pop | ssconf_values = { |
1778 | 054596f0 | Iustin Pop | constants.SS_CLUSTER_NAME: cluster.cluster_name, |
1779 | 5d60b3bd | Iustin Pop | constants.SS_CLUSTER_TAGS: cluster_tags, |
1780 | 054596f0 | Iustin Pop | constants.SS_FILE_STORAGE_DIR: cluster.file_storage_dir, |
1781 | 4b97f902 | Apollon Oikonomopoulos | constants.SS_SHARED_FILE_STORAGE_DIR: cluster.shared_file_storage_dir, |
1782 | a3316e4a | Iustin Pop | constants.SS_MASTER_CANDIDATES: mc_data, |
1783 | 8113a52e | Luca Bigliardi | constants.SS_MASTER_CANDIDATES_IPS: mc_ips_data, |
1784 | 054596f0 | Iustin Pop | constants.SS_MASTER_IP: cluster.master_ip, |
1785 | 054596f0 | Iustin Pop | constants.SS_MASTER_NETDEV: cluster.master_netdev, |
1786 | 054596f0 | Iustin Pop | constants.SS_MASTER_NODE: cluster.master_node, |
1787 | a3316e4a | Iustin Pop | constants.SS_NODE_LIST: node_data, |
1788 | f9780ccd | Luca Bigliardi | constants.SS_NODE_PRIMARY_IPS: node_pri_ips_data, |
1789 | f9780ccd | Luca Bigliardi | constants.SS_NODE_SECONDARY_IPS: node_snd_ips_data, |
1790 | a3316e4a | Iustin Pop | constants.SS_OFFLINE_NODES: off_data, |
1791 | 81a49123 | Iustin Pop | constants.SS_ONLINE_NODES: on_data, |
1792 | 868a98ca | Manuel Franceschini | constants.SS_PRIMARY_IP_FAMILY: str(cluster.primary_ip_family),
|
1793 | 81a49123 | Iustin Pop | constants.SS_INSTANCE_LIST: instance_data, |
1794 | 8a113c7a | Iustin Pop | constants.SS_RELEASE_VERSION: constants.RELEASE_VERSION, |
1795 | 4f7a6a10 | Iustin Pop | constants.SS_HYPERVISOR_LIST: hypervisor_list, |
1796 | 5c465a95 | Iustin Pop | constants.SS_MAINTAIN_NODE_HEALTH: str(cluster.maintain_node_health),
|
1797 | 0fbae49a | Balazs Lecz | constants.SS_UID_POOL: uid_pool, |
1798 | 6f076453 | Guido Trotter | constants.SS_NODEGROUPS: nodegroups_data, |
1799 | 03d1dba2 | Michael Hanselmann | } |
1800 | 2afc9238 | Iustin Pop | bad_values = [(k, v) for k, v in ssconf_values.items() |
1801 | 2afc9238 | Iustin Pop | if not isinstance(v, (str, basestring))] |
1802 | 2afc9238 | Iustin Pop | if bad_values:
|
1803 | 2afc9238 | Iustin Pop | err = utils.CommaJoin("%s=%s" % (k, v) for k, v in bad_values) |
1804 | 2afc9238 | Iustin Pop | raise errors.ConfigurationError("Some ssconf key(s) have non-string" |
1805 | 2afc9238 | Iustin Pop | " values: %s" % err)
|
1806 | 2afc9238 | Iustin Pop | return ssconf_values
|
1807 | 03d1dba2 | Michael Hanselmann | |
1808 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1809 | d367b66c | Manuel Franceschini | def GetSsconfValues(self): |
1810 | d367b66c | Manuel Franceschini | """Wrapper using lock around _UnlockedGetSsconf().
|
1811 | d367b66c | Manuel Franceschini |
|
1812 | d367b66c | Manuel Franceschini | """
|
1813 | d367b66c | Manuel Franceschini | return self._UnlockedGetSsconfValues() |
1814 | d367b66c | Manuel Franceschini | |
1815 | d367b66c | Manuel Franceschini | @locking.ssynchronized(_config_lock, shared=1) |
1816 | a8083063 | Iustin Pop | def GetVGName(self): |
1817 | a8083063 | Iustin Pop | """Return the volume group name.
|
1818 | a8083063 | Iustin Pop |
|
1819 | a8083063 | Iustin Pop | """
|
1820 | a8083063 | Iustin Pop | return self._config_data.cluster.volume_group_name |
1821 | a8083063 | Iustin Pop | |
1822 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1823 | 89ff8e15 | Manuel Franceschini | def SetVGName(self, vg_name): |
1824 | 89ff8e15 | Manuel Franceschini | """Set the volume group name.
|
1825 | 89ff8e15 | Manuel Franceschini |
|
1826 | 89ff8e15 | Manuel Franceschini | """
|
1827 | 2d4011cd | Manuel Franceschini | self._config_data.cluster.volume_group_name = vg_name
|
1828 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1829 | 89ff8e15 | Manuel Franceschini | self._WriteConfig()
|
1830 | 89ff8e15 | Manuel Franceschini | |
1831 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1832 | 9e33896b | Luca Bigliardi | def GetDRBDHelper(self): |
1833 | 9e33896b | Luca Bigliardi | """Return DRBD usermode helper.
|
1834 | 9e33896b | Luca Bigliardi |
|
1835 | 9e33896b | Luca Bigliardi | """
|
1836 | 9e33896b | Luca Bigliardi | return self._config_data.cluster.drbd_usermode_helper |
1837 | 9e33896b | Luca Bigliardi | |
1838 | 9e33896b | Luca Bigliardi | @locking.ssynchronized(_config_lock)
|
1839 | 9e33896b | Luca Bigliardi | def SetDRBDHelper(self, drbd_helper): |
1840 | 9e33896b | Luca Bigliardi | """Set DRBD usermode helper.
|
1841 | 9e33896b | Luca Bigliardi |
|
1842 | 9e33896b | Luca Bigliardi | """
|
1843 | 9e33896b | Luca Bigliardi | self._config_data.cluster.drbd_usermode_helper = drbd_helper
|
1844 | 9e33896b | Luca Bigliardi | self._config_data.cluster.serial_no += 1 |
1845 | 9e33896b | Luca Bigliardi | self._WriteConfig()
|
1846 | 9e33896b | Luca Bigliardi | |
1847 | 9e33896b | Luca Bigliardi | @locking.ssynchronized(_config_lock, shared=1) |
1848 | a8083063 | Iustin Pop | def GetMACPrefix(self): |
1849 | a8083063 | Iustin Pop | """Return the mac prefix.
|
1850 | a8083063 | Iustin Pop |
|
1851 | a8083063 | Iustin Pop | """
|
1852 | a8083063 | Iustin Pop | return self._config_data.cluster.mac_prefix |
1853 | 62779dd0 | Iustin Pop | |
1854 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1855 | 62779dd0 | Iustin Pop | def GetClusterInfo(self): |
1856 | 5bbd3f7f | Michael Hanselmann | """Returns information about the cluster
|
1857 | 62779dd0 | Iustin Pop |
|
1858 | c41eea6e | Iustin Pop | @rtype: L{objects.Cluster}
|
1859 | c41eea6e | Iustin Pop | @return: the cluster object
|
1860 | 62779dd0 | Iustin Pop |
|
1861 | 62779dd0 | Iustin Pop | """
|
1862 | 62779dd0 | Iustin Pop | return self._config_data.cluster |
1863 | e00fb268 | Iustin Pop | |
1864 | 51cb1581 | Luca Bigliardi | @locking.ssynchronized(_config_lock, shared=1) |
1865 | 51cb1581 | Luca Bigliardi | def HasAnyDiskOfType(self, dev_type): |
1866 | 51cb1581 | Luca Bigliardi | """Check if in there is at disk of the given type in the configuration.
|
1867 | 51cb1581 | Luca Bigliardi |
|
1868 | 51cb1581 | Luca Bigliardi | """
|
1869 | 51cb1581 | Luca Bigliardi | return self._config_data.HasAnyDiskOfType(dev_type) |
1870 | 51cb1581 | Luca Bigliardi | |
1871 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1872 | a4eae71f | Michael Hanselmann | def Update(self, target, feedback_fn): |
1873 | e00fb268 | Iustin Pop | """Notify function to be called after updates.
|
1874 | e00fb268 | Iustin Pop |
|
1875 | e00fb268 | Iustin Pop | This function must be called when an object (as returned by
|
1876 | e00fb268 | Iustin Pop | GetInstanceInfo, GetNodeInfo, GetCluster) has been updated and the
|
1877 | e00fb268 | Iustin Pop | caller wants the modifications saved to the backing store. Note
|
1878 | e00fb268 | Iustin Pop | that all modified objects will be saved, but the target argument
|
1879 | e00fb268 | Iustin Pop | is the one the caller wants to ensure that it's saved.
|
1880 | e00fb268 | Iustin Pop |
|
1881 | c41eea6e | Iustin Pop | @param target: an instance of either L{objects.Cluster},
|
1882 | c41eea6e | Iustin Pop | L{objects.Node} or L{objects.Instance} which is existing in
|
1883 | c41eea6e | Iustin Pop | the cluster
|
1884 | a4eae71f | Michael Hanselmann | @param feedback_fn: Callable feedback function
|
1885 | c41eea6e | Iustin Pop |
|
1886 | e00fb268 | Iustin Pop | """
|
1887 | e00fb268 | Iustin Pop | if self._config_data is None: |
1888 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Configuration file not read," |
1889 | 3ecf6786 | Iustin Pop | " cannot save.")
|
1890 | f34901f8 | Iustin Pop | update_serial = False
|
1891 | e00fb268 | Iustin Pop | if isinstance(target, objects.Cluster): |
1892 | e00fb268 | Iustin Pop | test = target == self._config_data.cluster
|
1893 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Node): |
1894 | e00fb268 | Iustin Pop | test = target in self._config_data.nodes.values() |
1895 | f34901f8 | Iustin Pop | update_serial = True
|
1896 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Instance): |
1897 | e00fb268 | Iustin Pop | test = target in self._config_data.instances.values() |
1898 | e11a1b77 | Adeodato Simo | elif isinstance(target, objects.NodeGroup): |
1899 | e11a1b77 | Adeodato Simo | test = target in self._config_data.nodegroups.values() |
1900 | e00fb268 | Iustin Pop | else:
|
1901 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid object type (%s) passed to" |
1902 | 3ecf6786 | Iustin Pop | " ConfigWriter.Update" % type(target)) |
1903 | e00fb268 | Iustin Pop | if not test: |
1904 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Configuration updated since object" |
1905 | 3ecf6786 | Iustin Pop | " has been read or unknown object")
|
1906 | f34901f8 | Iustin Pop | target.serial_no += 1
|
1907 | d693c864 | Iustin Pop | target.mtime = now = time.time() |
1908 | f34901f8 | Iustin Pop | |
1909 | cff4c037 | Iustin Pop | if update_serial:
|
1910 | f34901f8 | Iustin Pop | # for node updates, we need to increase the cluster serial too
|
1911 | f34901f8 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1912 | d693c864 | Iustin Pop | self._config_data.cluster.mtime = now
|
1913 | b989e85d | Iustin Pop | |
1914 | 61cf6b5e | Iustin Pop | if isinstance(target, objects.Instance): |
1915 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(target.name)
|
1916 | 61cf6b5e | Iustin Pop | |
1917 | a4eae71f | Michael Hanselmann | self._WriteConfig(feedback_fn=feedback_fn)
|
1918 | 73064714 | Guido Trotter | |
1919 | 73064714 | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1920 | 73064714 | Guido Trotter | def DropECReservations(self, ec_id): |
1921 | 73064714 | Guido Trotter | """Drop per-execution-context reservations
|
1922 | 73064714 | Guido Trotter |
|
1923 | 73064714 | Guido Trotter | """
|
1924 | d8aee57e | Iustin Pop | for rm in self._all_rms: |
1925 | d8aee57e | Iustin Pop | rm.DropECReservations(ec_id) |