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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | 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 | a8083063 | Iustin Pop | import os |
35 | a8083063 | Iustin Pop | import random |
36 | d8470559 | Michael Hanselmann | import logging |
37 | d693c864 | Iustin Pop | import time |
38 | a8083063 | Iustin Pop | |
39 | a8083063 | Iustin Pop | from ganeti import errors |
40 | f78ede4e | Guido Trotter | from ganeti import locking |
41 | a8083063 | Iustin Pop | from ganeti import utils |
42 | a8083063 | Iustin Pop | from ganeti import constants |
43 | a8083063 | Iustin Pop | from ganeti import rpc |
44 | a8083063 | Iustin Pop | from ganeti import objects |
45 | 8d14b30d | Iustin Pop | from ganeti import serializer |
46 | 0fbae49a | Balazs Lecz | from ganeti import uidpool |
47 | 243cdbcc | Michael Hanselmann | |
48 | 243cdbcc | Michael Hanselmann | |
49 | f78ede4e | Guido Trotter | _config_lock = locking.SharedLock() |
50 | f78ede4e | Guido Trotter | |
51 | 4fae38c5 | Guido Trotter | # job id used for resource management at config upgrade time
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52 | 8d9c3bef | Michael Hanselmann | _UPGRADE_CONFIG_JID = "jid-cfg-upgrade"
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53 | 4fae38c5 | Guido Trotter | |
54 | f78ede4e | Guido Trotter | |
55 | 5b263ed7 | Michael Hanselmann | def _ValidateConfig(data): |
56 | c41eea6e | Iustin Pop | """Verifies that a configuration objects looks valid.
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57 | c41eea6e | Iustin Pop |
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58 | c41eea6e | Iustin Pop | This only verifies the version of the configuration.
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59 | c41eea6e | Iustin Pop |
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60 | c41eea6e | Iustin Pop | @raise errors.ConfigurationError: if the version differs from what
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61 | c41eea6e | Iustin Pop | we expect
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62 | c41eea6e | Iustin Pop |
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63 | c41eea6e | Iustin Pop | """
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64 | 5b263ed7 | Michael Hanselmann | if data.version != constants.CONFIG_VERSION:
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65 | 243cdbcc | Michael Hanselmann | raise errors.ConfigurationError("Cluster configuration version" |
66 | 243cdbcc | Michael Hanselmann | " mismatch, got %s instead of %s" %
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67 | 5b263ed7 | Michael Hanselmann | (data.version, |
68 | 243cdbcc | Michael Hanselmann | constants.CONFIG_VERSION)) |
69 | a8083063 | Iustin Pop | |
70 | 319856a9 | Michael Hanselmann | |
71 | 013da361 | Guido Trotter | class TemporaryReservationManager: |
72 | 013da361 | Guido Trotter | """A temporary resource reservation manager.
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73 | 013da361 | Guido Trotter |
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74 | 013da361 | Guido Trotter | This is used to reserve resources in a job, before using them, making sure
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75 | 013da361 | Guido Trotter | other jobs cannot get them in the meantime.
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76 | 013da361 | Guido Trotter |
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77 | 013da361 | Guido Trotter | """
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78 | 013da361 | Guido Trotter | def __init__(self): |
79 | 013da361 | Guido Trotter | self._ec_reserved = {}
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80 | 013da361 | Guido Trotter | |
81 | 013da361 | Guido Trotter | def Reserved(self, resource): |
82 | 013da361 | Guido Trotter | for holder_reserved in self._ec_reserved.items(): |
83 | 013da361 | Guido Trotter | if resource in holder_reserved: |
84 | 013da361 | Guido Trotter | return True |
85 | 013da361 | Guido Trotter | return False |
86 | 013da361 | Guido Trotter | |
87 | 013da361 | Guido Trotter | def Reserve(self, ec_id, resource): |
88 | 013da361 | Guido Trotter | if self.Reserved(resource): |
89 | 013da361 | Guido Trotter | raise errors.ReservationError("Duplicate reservation for resource: %s." % |
90 | 013da361 | Guido Trotter | (resource)) |
91 | 013da361 | Guido Trotter | if ec_id not in self._ec_reserved: |
92 | 013da361 | Guido Trotter | self._ec_reserved[ec_id] = set([resource]) |
93 | 013da361 | Guido Trotter | else:
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94 | 013da361 | Guido Trotter | self._ec_reserved[ec_id].add(resource)
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95 | 013da361 | Guido Trotter | |
96 | 013da361 | Guido Trotter | def DropECReservations(self, ec_id): |
97 | 013da361 | Guido Trotter | if ec_id in self._ec_reserved: |
98 | 013da361 | Guido Trotter | del self._ec_reserved[ec_id] |
99 | 013da361 | Guido Trotter | |
100 | 013da361 | Guido Trotter | def GetReserved(self): |
101 | 013da361 | Guido Trotter | all_reserved = set()
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102 | 013da361 | Guido Trotter | for holder_reserved in self._ec_reserved.values(): |
103 | 013da361 | Guido Trotter | all_reserved.update(holder_reserved) |
104 | 013da361 | Guido Trotter | return all_reserved
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105 | 013da361 | Guido Trotter | |
106 | 013da361 | Guido Trotter | def Generate(self, existing, generate_one_fn, ec_id): |
107 | 013da361 | Guido Trotter | """Generate a new resource of this type
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108 | 013da361 | Guido Trotter |
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109 | 013da361 | Guido Trotter | """
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110 | 013da361 | Guido Trotter | assert callable(generate_one_fn) |
111 | 013da361 | Guido Trotter | |
112 | 013da361 | Guido Trotter | all_elems = self.GetReserved()
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113 | 013da361 | Guido Trotter | all_elems.update(existing) |
114 | 013da361 | Guido Trotter | retries = 64
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115 | 013da361 | Guido Trotter | while retries > 0: |
116 | 013da361 | Guido Trotter | new_resource = generate_one_fn() |
117 | 013da361 | Guido Trotter | if new_resource is not None and new_resource not in all_elems: |
118 | 013da361 | Guido Trotter | break
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119 | 013da361 | Guido Trotter | else:
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120 | 013da361 | Guido Trotter | raise errors.ConfigurationError("Not able generate new resource" |
121 | 013da361 | Guido Trotter | " (last tried: %s)" % new_resource)
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122 | 013da361 | Guido Trotter | self.Reserve(ec_id, new_resource)
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123 | 013da361 | Guido Trotter | return new_resource
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124 | 013da361 | Guido Trotter | |
125 | 013da361 | Guido Trotter | |
126 | a8083063 | Iustin Pop | class ConfigWriter: |
127 | 098c0958 | Michael Hanselmann | """The interface to the cluster configuration.
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128 | a8083063 | Iustin Pop |
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129 | d8aee57e | Iustin Pop | @ivar _temporary_lvs: reservation manager for temporary LVs
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130 | d8aee57e | Iustin Pop | @ivar _all_rms: a list of all temporary reservation managers
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131 | d8aee57e | Iustin Pop |
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132 | 098c0958 | Michael Hanselmann | """
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133 | a8083063 | Iustin Pop | def __init__(self, cfg_file=None, offline=False): |
134 | 14e15659 | Iustin Pop | self.write_count = 0 |
135 | f78ede4e | Guido Trotter | self._lock = _config_lock
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136 | a8083063 | Iustin Pop | self._config_data = None |
137 | a8083063 | Iustin Pop | self._offline = offline
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138 | a8083063 | Iustin Pop | if cfg_file is None: |
139 | a8083063 | Iustin Pop | self._cfg_file = constants.CLUSTER_CONF_FILE
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140 | a8083063 | Iustin Pop | else:
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141 | a8083063 | Iustin Pop | self._cfg_file = cfg_file
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142 | 4fae38c5 | Guido Trotter | self._temporary_ids = TemporaryReservationManager()
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143 | a81c53c9 | Iustin Pop | self._temporary_drbds = {}
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144 | 36b66e6e | Guido Trotter | self._temporary_macs = TemporaryReservationManager()
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145 | afa1386e | Guido Trotter | self._temporary_secrets = TemporaryReservationManager()
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146 | d8aee57e | Iustin Pop | self._temporary_lvs = TemporaryReservationManager()
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147 | d8aee57e | Iustin Pop | self._all_rms = [self._temporary_ids, self._temporary_macs, |
148 | d8aee57e | Iustin Pop | self._temporary_secrets, self._temporary_lvs] |
149 | 89e1fc26 | Iustin Pop | # Note: in order to prevent errors when resolving our name in
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150 | 89e1fc26 | Iustin Pop | # _DistributeConfig, we compute it here once and reuse it; it's
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151 | 89e1fc26 | Iustin Pop | # better to raise an error before starting to modify the config
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152 | 89e1fc26 | Iustin Pop | # file than after it was modified
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153 | 89e1fc26 | Iustin Pop | self._my_hostname = utils.HostInfo().name
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154 | 3c7f6c44 | Iustin Pop | self._last_cluster_serial = -1 |
155 | 3d3a04bc | Iustin Pop | self._OpenConfig()
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156 | a8083063 | Iustin Pop | |
157 | a8083063 | Iustin Pop | # this method needs to be static, so that we can call it on the class
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158 | a8083063 | Iustin Pop | @staticmethod
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159 | a8083063 | Iustin Pop | def IsCluster(): |
160 | a8083063 | Iustin Pop | """Check if the cluster is configured.
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161 | a8083063 | Iustin Pop |
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162 | a8083063 | Iustin Pop | """
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163 | a8083063 | Iustin Pop | return os.path.exists(constants.CLUSTER_CONF_FILE)
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164 | a8083063 | Iustin Pop | |
165 | 36b66e6e | Guido Trotter | def _GenerateOneMAC(self): |
166 | 36b66e6e | Guido Trotter | """Generate one mac address
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167 | 36b66e6e | Guido Trotter |
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168 | 36b66e6e | Guido Trotter | """
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169 | 36b66e6e | Guido Trotter | prefix = self._config_data.cluster.mac_prefix
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170 | 36b66e6e | Guido Trotter | byte1 = random.randrange(0, 256) |
171 | 36b66e6e | Guido Trotter | byte2 = random.randrange(0, 256) |
172 | 36b66e6e | Guido Trotter | byte3 = random.randrange(0, 256) |
173 | 36b66e6e | Guido Trotter | mac = "%s:%02x:%02x:%02x" % (prefix, byte1, byte2, byte3)
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174 | 36b66e6e | Guido Trotter | return mac
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175 | 36b66e6e | Guido Trotter | |
176 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
177 | 36b66e6e | Guido Trotter | def GenerateMAC(self, ec_id): |
178 | a8083063 | Iustin Pop | """Generate a MAC for an instance.
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179 | a8083063 | Iustin Pop |
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180 | a8083063 | Iustin Pop | This should check the current instances for duplicates.
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181 | a8083063 | Iustin Pop |
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182 | a8083063 | Iustin Pop | """
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183 | 36b66e6e | Guido Trotter | existing = self._AllMACs()
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184 | 36b66e6e | Guido Trotter | return self._temporary_ids.Generate(existing, self._GenerateOneMAC, ec_id) |
185 | a8083063 | Iustin Pop | |
186 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
187 | 36b66e6e | Guido Trotter | def ReserveMAC(self, mac, ec_id): |
188 | 36b66e6e | Guido Trotter | """Reserve a MAC for an instance.
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189 | 1862d460 | Alexander Schreiber |
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190 | 1862d460 | Alexander Schreiber | This only checks instances managed by this cluster, it does not
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191 | 1862d460 | Alexander Schreiber | check for potential collisions elsewhere.
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192 | 1862d460 | Alexander Schreiber |
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193 | 1862d460 | Alexander Schreiber | """
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194 | 1862d460 | Alexander Schreiber | all_macs = self._AllMACs()
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195 | 36b66e6e | Guido Trotter | if mac in all_macs: |
196 | 36b66e6e | Guido Trotter | raise errors.ReservationError("mac already in use") |
197 | 36b66e6e | Guido Trotter | else:
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198 | 36b66e6e | Guido Trotter | self._temporary_macs.Reserve(mac, ec_id)
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199 | 1862d460 | Alexander Schreiber | |
200 | f9518d38 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
201 | d8aee57e | Iustin Pop | def ReserveLV(self, lv_name, ec_id): |
202 | d8aee57e | Iustin Pop | """Reserve an VG/LV pair for an instance.
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203 | d8aee57e | Iustin Pop |
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204 | d8aee57e | Iustin Pop | @type lv_name: string
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205 | d8aee57e | Iustin Pop | @param lv_name: the logical volume name to reserve
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206 | d8aee57e | Iustin Pop |
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207 | d8aee57e | Iustin Pop | """
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208 | d8aee57e | Iustin Pop | all_lvs = self._AllLVs()
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209 | d8aee57e | Iustin Pop | if lv_name in all_lvs: |
210 | d8aee57e | Iustin Pop | raise errors.ReservationError("LV already in use") |
211 | d8aee57e | Iustin Pop | else:
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212 | d8aee57e | Iustin Pop | self._temporary_lvs.Reserve(lv_name, ec_id)
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213 | d8aee57e | Iustin Pop | |
214 | d8aee57e | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
215 | afa1386e | Guido Trotter | def GenerateDRBDSecret(self, ec_id): |
216 | f9518d38 | Iustin Pop | """Generate a DRBD secret.
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217 | f9518d38 | Iustin Pop |
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218 | f9518d38 | Iustin Pop | This checks the current disks for duplicates.
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219 | f9518d38 | Iustin Pop |
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220 | f9518d38 | Iustin Pop | """
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221 | afa1386e | Guido Trotter | return self._temporary_secrets.Generate(self._AllDRBDSecrets(), |
222 | afa1386e | Guido Trotter | utils.GenerateSecret, |
223 | afa1386e | Guido Trotter | ec_id) |
224 | 8d9c3bef | Michael Hanselmann | |
225 | 34e54ebc | Iustin Pop | def _AllLVs(self): |
226 | 923b1523 | Iustin Pop | """Compute the list of all LVs.
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227 | 923b1523 | Iustin Pop |
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228 | 923b1523 | Iustin Pop | """
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229 | 923b1523 | Iustin Pop | lvnames = set()
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230 | 923b1523 | Iustin Pop | for instance in self._config_data.instances.values(): |
231 | 923b1523 | Iustin Pop | node_data = instance.MapLVsByNode() |
232 | 923b1523 | Iustin Pop | for lv_list in node_data.values(): |
233 | 923b1523 | Iustin Pop | lvnames.update(lv_list) |
234 | 923b1523 | Iustin Pop | return lvnames
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235 | 923b1523 | Iustin Pop | |
236 | 34e54ebc | Iustin Pop | def _AllIDs(self, include_temporary): |
237 | 34e54ebc | Iustin Pop | """Compute the list of all UUIDs and names we have.
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238 | 34e54ebc | Iustin Pop |
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239 | 34e54ebc | Iustin Pop | @type include_temporary: boolean
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240 | 34e54ebc | Iustin Pop | @param include_temporary: whether to include the _temporary_ids set
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241 | 34e54ebc | Iustin Pop | @rtype: set
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242 | 34e54ebc | Iustin Pop | @return: a set of IDs
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243 | 34e54ebc | Iustin Pop |
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244 | 34e54ebc | Iustin Pop | """
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245 | 34e54ebc | Iustin Pop | existing = set()
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246 | 34e54ebc | Iustin Pop | if include_temporary:
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247 | 4fae38c5 | Guido Trotter | existing.update(self._temporary_ids.GetReserved())
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248 | 34e54ebc | Iustin Pop | existing.update(self._AllLVs())
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249 | 34e54ebc | Iustin Pop | existing.update(self._config_data.instances.keys())
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250 | 34e54ebc | Iustin Pop | existing.update(self._config_data.nodes.keys())
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251 | 76d5d3a3 | Iustin Pop | existing.update([i.uuid for i in self._AllUUIDObjects() if i.uuid]) |
252 | 34e54ebc | Iustin Pop | return existing
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253 | 34e54ebc | Iustin Pop | |
254 | 4fae38c5 | Guido Trotter | def _GenerateUniqueID(self, ec_id): |
255 | 430b923c | Iustin Pop | """Generate an unique UUID.
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256 | 923b1523 | Iustin Pop |
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257 | 923b1523 | Iustin Pop | This checks the current node, instances and disk names for
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258 | 923b1523 | Iustin Pop | duplicates.
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259 | 923b1523 | Iustin Pop |
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260 | c41eea6e | Iustin Pop | @rtype: string
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261 | c41eea6e | Iustin Pop | @return: the unique id
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262 | 923b1523 | Iustin Pop |
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263 | 923b1523 | Iustin Pop | """
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264 | 4fae38c5 | Guido Trotter | existing = self._AllIDs(include_temporary=False) |
265 | 4fae38c5 | Guido Trotter | return self._temporary_ids.Generate(existing, utils.NewUUID, ec_id) |
266 | 923b1523 | Iustin Pop | |
267 | 430b923c | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
268 | 4fae38c5 | Guido Trotter | def GenerateUniqueID(self, ec_id): |
269 | 430b923c | Iustin Pop | """Generate an unique ID.
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270 | 430b923c | Iustin Pop |
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271 | 430b923c | Iustin Pop | This is just a wrapper over the unlocked version.
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272 | 430b923c | Iustin Pop |
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273 | 4fae38c5 | Guido Trotter | @type ec_id: string
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274 | 4fae38c5 | Guido Trotter | @param ec_id: unique id for the job to reserve the id to
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275 | 34d657ba | Iustin Pop |
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276 | 34d657ba | Iustin Pop | """
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277 | 4fae38c5 | Guido Trotter | return self._GenerateUniqueID(ec_id) |
278 | 34d657ba | Iustin Pop | |
279 | a8083063 | Iustin Pop | def _AllMACs(self): |
280 | a8083063 | Iustin Pop | """Return all MACs present in the config.
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281 | a8083063 | Iustin Pop |
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282 | c41eea6e | Iustin Pop | @rtype: list
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283 | c41eea6e | Iustin Pop | @return: the list of all MACs
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284 | c41eea6e | Iustin Pop |
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285 | a8083063 | Iustin Pop | """
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286 | a8083063 | Iustin Pop | result = [] |
287 | a8083063 | Iustin Pop | for instance in self._config_data.instances.values(): |
288 | a8083063 | Iustin Pop | for nic in instance.nics: |
289 | a8083063 | Iustin Pop | result.append(nic.mac) |
290 | a8083063 | Iustin Pop | |
291 | a8083063 | Iustin Pop | return result
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292 | a8083063 | Iustin Pop | |
293 | f9518d38 | Iustin Pop | def _AllDRBDSecrets(self): |
294 | f9518d38 | Iustin Pop | """Return all DRBD secrets present in the config.
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295 | f9518d38 | Iustin Pop |
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296 | c41eea6e | Iustin Pop | @rtype: list
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297 | c41eea6e | Iustin Pop | @return: the list of all DRBD secrets
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298 | c41eea6e | Iustin Pop |
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299 | f9518d38 | Iustin Pop | """
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300 | f9518d38 | Iustin Pop | def helper(disk, result): |
301 | f9518d38 | Iustin Pop | """Recursively gather secrets from this disk."""
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302 | f9518d38 | Iustin Pop | if disk.dev_type == constants.DT_DRBD8:
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303 | f9518d38 | Iustin Pop | result.append(disk.logical_id[5])
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304 | f9518d38 | Iustin Pop | if disk.children:
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305 | f9518d38 | Iustin Pop | for child in disk.children: |
306 | f9518d38 | Iustin Pop | helper(child, result) |
307 | f9518d38 | Iustin Pop | |
308 | f9518d38 | Iustin Pop | result = [] |
309 | f9518d38 | Iustin Pop | for instance in self._config_data.instances.values(): |
310 | f9518d38 | Iustin Pop | for disk in instance.disks: |
311 | f9518d38 | Iustin Pop | helper(disk, result) |
312 | f9518d38 | Iustin Pop | |
313 | f9518d38 | Iustin Pop | return result
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314 | f9518d38 | Iustin Pop | |
315 | 4b98ac29 | Iustin Pop | def _CheckDiskIDs(self, disk, l_ids, p_ids): |
316 | 4b98ac29 | Iustin Pop | """Compute duplicate disk IDs
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317 | 4b98ac29 | Iustin Pop |
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318 | 4b98ac29 | Iustin Pop | @type disk: L{objects.Disk}
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319 | 4b98ac29 | Iustin Pop | @param disk: the disk at which to start searching
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320 | 4b98ac29 | Iustin Pop | @type l_ids: list
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321 | 4b98ac29 | Iustin Pop | @param l_ids: list of current logical ids
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322 | 4b98ac29 | Iustin Pop | @type p_ids: list
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323 | 4b98ac29 | Iustin Pop | @param p_ids: list of current physical ids
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324 | 4b98ac29 | Iustin Pop | @rtype: list
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325 | 4b98ac29 | Iustin Pop | @return: a list of error messages
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326 | 4b98ac29 | Iustin Pop |
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327 | 4b98ac29 | Iustin Pop | """
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328 | 4b98ac29 | Iustin Pop | result = [] |
329 | 25ae22e4 | Iustin Pop | if disk.logical_id is not None: |
330 | 25ae22e4 | Iustin Pop | if disk.logical_id in l_ids: |
331 | 25ae22e4 | Iustin Pop | result.append("duplicate logical id %s" % str(disk.logical_id)) |
332 | 25ae22e4 | Iustin Pop | else:
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333 | 25ae22e4 | Iustin Pop | l_ids.append(disk.logical_id) |
334 | 25ae22e4 | Iustin Pop | if disk.physical_id is not None: |
335 | 25ae22e4 | Iustin Pop | if disk.physical_id in p_ids: |
336 | 25ae22e4 | Iustin Pop | result.append("duplicate physical id %s" % str(disk.physical_id)) |
337 | 25ae22e4 | Iustin Pop | else:
|
338 | 25ae22e4 | Iustin Pop | p_ids.append(disk.physical_id) |
339 | 4b98ac29 | Iustin Pop | |
340 | 4b98ac29 | Iustin Pop | if disk.children:
|
341 | 4b98ac29 | Iustin Pop | for child in disk.children: |
342 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(child, l_ids, p_ids))
|
343 | 4b98ac29 | Iustin Pop | return result
|
344 | 4b98ac29 | Iustin Pop | |
345 | 4a89c54a | Iustin Pop | def _UnlockedVerifyConfig(self): |
346 | a8efbb40 | Iustin Pop | """Verify function.
|
347 | a8efbb40 | Iustin Pop |
|
348 | 4a89c54a | Iustin Pop | @rtype: list
|
349 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
350 | 4a89c54a | Iustin Pop | configuration errors
|
351 | 4a89c54a | Iustin Pop |
|
352 | a8083063 | Iustin Pop | """
|
353 | a8083063 | Iustin Pop | result = [] |
354 | a8083063 | Iustin Pop | seen_macs = [] |
355 | 48ce9fd9 | Iustin Pop | ports = {} |
356 | a8083063 | Iustin Pop | data = self._config_data
|
357 | 4b98ac29 | Iustin Pop | seen_lids = [] |
358 | 4b98ac29 | Iustin Pop | seen_pids = [] |
359 | 9a5fba23 | Guido Trotter | |
360 | 9a5fba23 | Guido Trotter | # global cluster checks
|
361 | 9a5fba23 | Guido Trotter | if not data.cluster.enabled_hypervisors: |
362 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors list doesn't have any entries")
|
363 | 9a5fba23 | Guido Trotter | invalid_hvs = set(data.cluster.enabled_hypervisors) - constants.HYPER_TYPES
|
364 | 9a5fba23 | Guido Trotter | if invalid_hvs:
|
365 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors contains invalid entries: %s" %
|
366 | 9a5fba23 | Guido Trotter | invalid_hvs) |
367 | 9f3ac970 | Iustin Pop | missing_hvp = (set(data.cluster.enabled_hypervisors) -
|
368 | 9f3ac970 | Iustin Pop | set(data.cluster.hvparams.keys()))
|
369 | 9f3ac970 | Iustin Pop | if missing_hvp:
|
370 | 9f3ac970 | Iustin Pop | result.append("hypervisor parameters missing for the enabled"
|
371 | 9f3ac970 | Iustin Pop | " hypervisor(s) %s" % utils.CommaJoin(missing_hvp))
|
372 | 9a5fba23 | Guido Trotter | |
373 | 9a5fba23 | Guido Trotter | if data.cluster.master_node not in data.nodes: |
374 | 9a5fba23 | Guido Trotter | result.append("cluster has invalid primary node '%s'" %
|
375 | 9a5fba23 | Guido Trotter | data.cluster.master_node) |
376 | 9a5fba23 | Guido Trotter | |
377 | 9a5fba23 | Guido Trotter | # per-instance checks
|
378 | a8083063 | Iustin Pop | for instance_name in data.instances: |
379 | a8083063 | Iustin Pop | instance = data.instances[instance_name] |
380 | 81196341 | Iustin Pop | if instance.name != instance_name:
|
381 | 81196341 | Iustin Pop | result.append("instance '%s' is indexed by wrong name '%s'" %
|
382 | 81196341 | Iustin Pop | (instance.name, instance_name)) |
383 | a8083063 | Iustin Pop | if instance.primary_node not in data.nodes: |
384 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid primary node '%s'" %
|
385 | a8083063 | Iustin Pop | (instance_name, instance.primary_node)) |
386 | a8083063 | Iustin Pop | for snode in instance.secondary_nodes: |
387 | a8083063 | Iustin Pop | if snode not in data.nodes: |
388 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid secondary node '%s'" %
|
389 | a8083063 | Iustin Pop | (instance_name, snode)) |
390 | a8083063 | Iustin Pop | for idx, nic in enumerate(instance.nics): |
391 | a8083063 | Iustin Pop | if nic.mac in seen_macs: |
392 | 8522ceeb | Iustin Pop | result.append("instance '%s' has NIC %d mac %s duplicate" %
|
393 | a8083063 | Iustin Pop | (instance_name, idx, nic.mac)) |
394 | a8083063 | Iustin Pop | else:
|
395 | a8083063 | Iustin Pop | seen_macs.append(nic.mac) |
396 | 48ce9fd9 | Iustin Pop | |
397 | 48ce9fd9 | Iustin Pop | # gather the drbd ports for duplicate checks
|
398 | 48ce9fd9 | Iustin Pop | for dsk in instance.disks: |
399 | 48ce9fd9 | Iustin Pop | if dsk.dev_type in constants.LDS_DRBD: |
400 | 48ce9fd9 | Iustin Pop | tcp_port = dsk.logical_id[2]
|
401 | 48ce9fd9 | Iustin Pop | if tcp_port not in ports: |
402 | 48ce9fd9 | Iustin Pop | ports[tcp_port] = [] |
403 | 48ce9fd9 | Iustin Pop | ports[tcp_port].append((instance.name, "drbd disk %s" % dsk.iv_name))
|
404 | 48ce9fd9 | Iustin Pop | # gather network port reservation
|
405 | 48ce9fd9 | Iustin Pop | net_port = getattr(instance, "network_port", None) |
406 | 48ce9fd9 | Iustin Pop | if net_port is not None: |
407 | 48ce9fd9 | Iustin Pop | if net_port not in ports: |
408 | 48ce9fd9 | Iustin Pop | ports[net_port] = [] |
409 | 48ce9fd9 | Iustin Pop | ports[net_port].append((instance.name, "network port"))
|
410 | 48ce9fd9 | Iustin Pop | |
411 | 332d0e37 | Iustin Pop | # instance disk verify
|
412 | 332d0e37 | Iustin Pop | for idx, disk in enumerate(instance.disks): |
413 | 332d0e37 | Iustin Pop | result.extend(["instance '%s' disk %d error: %s" %
|
414 | 332d0e37 | Iustin Pop | (instance.name, idx, msg) for msg in disk.Verify()]) |
415 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(disk, seen_lids, seen_pids))
|
416 | 332d0e37 | Iustin Pop | |
417 | 48ce9fd9 | Iustin Pop | # cluster-wide pool of free ports
|
418 | a8efbb40 | Iustin Pop | for free_port in data.cluster.tcpudp_port_pool: |
419 | 48ce9fd9 | Iustin Pop | if free_port not in ports: |
420 | 48ce9fd9 | Iustin Pop | ports[free_port] = [] |
421 | 48ce9fd9 | Iustin Pop | ports[free_port].append(("cluster", "port marked as free")) |
422 | 48ce9fd9 | Iustin Pop | |
423 | 48ce9fd9 | Iustin Pop | # compute tcp/udp duplicate ports
|
424 | 48ce9fd9 | Iustin Pop | keys = ports.keys() |
425 | 48ce9fd9 | Iustin Pop | keys.sort() |
426 | 48ce9fd9 | Iustin Pop | for pnum in keys: |
427 | 48ce9fd9 | Iustin Pop | pdata = ports[pnum] |
428 | 48ce9fd9 | Iustin Pop | if len(pdata) > 1: |
429 | 1f864b60 | Iustin Pop | txt = utils.CommaJoin(["%s/%s" % val for val in pdata]) |
430 | 48ce9fd9 | Iustin Pop | result.append("tcp/udp port %s has duplicates: %s" % (pnum, txt))
|
431 | 48ce9fd9 | Iustin Pop | |
432 | 48ce9fd9 | Iustin Pop | # highest used tcp port check
|
433 | 48ce9fd9 | Iustin Pop | if keys:
|
434 | a8efbb40 | Iustin Pop | if keys[-1] > data.cluster.highest_used_port: |
435 | 48ce9fd9 | Iustin Pop | result.append("Highest used port mismatch, saved %s, computed %s" %
|
436 | a8efbb40 | Iustin Pop | (data.cluster.highest_used_port, keys[-1]))
|
437 | a8efbb40 | Iustin Pop | |
438 | 3a26773f | Iustin Pop | if not data.nodes[data.cluster.master_node].master_candidate: |
439 | 3a26773f | Iustin Pop | result.append("Master node is not a master candidate")
|
440 | 3a26773f | Iustin Pop | |
441 | 4a89c54a | Iustin Pop | # master candidate checks
|
442 | e623dbe3 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats()
|
443 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
444 | ec0292f1 | Iustin Pop | result.append("Not enough master candidates: actual %d, target %d" %
|
445 | ec0292f1 | Iustin Pop | (mc_now, mc_max)) |
446 | 48ce9fd9 | Iustin Pop | |
447 | 5bf07049 | Iustin Pop | # node checks
|
448 | 81196341 | Iustin Pop | for node_name, node in data.nodes.items(): |
449 | 81196341 | Iustin Pop | if node.name != node_name:
|
450 | 81196341 | Iustin Pop | result.append("Node '%s' is indexed by wrong name '%s'" %
|
451 | 81196341 | Iustin Pop | (node.name, node_name)) |
452 | 5bf07049 | Iustin Pop | if [node.master_candidate, node.drained, node.offline].count(True) > 1: |
453 | 5bf07049 | Iustin Pop | result.append("Node %s state is invalid: master_candidate=%s,"
|
454 | 5bf07049 | Iustin Pop | " drain=%s, offline=%s" %
|
455 | 5bf07049 | Iustin Pop | (node.name, node.master_candidate, node.drain, |
456 | 5bf07049 | Iustin Pop | node.offline)) |
457 | 5bf07049 | Iustin Pop | |
458 | 4a89c54a | Iustin Pop | # drbd minors check
|
459 | 1122eb25 | Iustin Pop | _, duplicates = self._UnlockedComputeDRBDMap()
|
460 | 4a89c54a | Iustin Pop | for node, minor, instance_a, instance_b in duplicates: |
461 | 4a89c54a | Iustin Pop | result.append("DRBD minor %d on node %s is assigned twice to instances"
|
462 | 4a89c54a | Iustin Pop | " %s and %s" % (minor, node, instance_a, instance_b))
|
463 | 4a89c54a | Iustin Pop | |
464 | 0ce8f948 | Iustin Pop | # IP checks
|
465 | b8716596 | Michael Hanselmann | default_nicparams = data.cluster.nicparams[constants.PP_DEFAULT] |
466 | b8716596 | Michael Hanselmann | ips = {} |
467 | b8716596 | Michael Hanselmann | |
468 | b8716596 | Michael Hanselmann | def _AddIpAddress(ip, name): |
469 | b8716596 | Michael Hanselmann | ips.setdefault(ip, []).append(name) |
470 | b8716596 | Michael Hanselmann | |
471 | b8716596 | Michael Hanselmann | _AddIpAddress(data.cluster.master_ip, "cluster_ip")
|
472 | 0ce8f948 | Iustin Pop | |
473 | 0ce8f948 | Iustin Pop | for node in data.nodes.values(): |
474 | b8716596 | Michael Hanselmann | _AddIpAddress(node.primary_ip, "node:%s/primary" % node.name)
|
475 | 0ce8f948 | Iustin Pop | if node.secondary_ip != node.primary_ip:
|
476 | b8716596 | Michael Hanselmann | _AddIpAddress(node.secondary_ip, "node:%s/secondary" % node.name)
|
477 | b8716596 | Michael Hanselmann | |
478 | b8716596 | Michael Hanselmann | for instance in data.instances.values(): |
479 | b8716596 | Michael Hanselmann | for idx, nic in enumerate(instance.nics): |
480 | b8716596 | Michael Hanselmann | if nic.ip is None: |
481 | b8716596 | Michael Hanselmann | continue
|
482 | b8716596 | Michael Hanselmann | |
483 | b8716596 | Michael Hanselmann | nicparams = objects.FillDict(default_nicparams, nic.nicparams) |
484 | b8716596 | Michael Hanselmann | nic_mode = nicparams[constants.NIC_MODE] |
485 | b8716596 | Michael Hanselmann | nic_link = nicparams[constants.NIC_LINK] |
486 | b8716596 | Michael Hanselmann | |
487 | b8716596 | Michael Hanselmann | if nic_mode == constants.NIC_MODE_BRIDGED:
|
488 | b8716596 | Michael Hanselmann | link = "bridge:%s" % nic_link
|
489 | b8716596 | Michael Hanselmann | elif nic_mode == constants.NIC_MODE_ROUTED:
|
490 | b8716596 | Michael Hanselmann | link = "route:%s" % nic_link
|
491 | b8716596 | Michael Hanselmann | else:
|
492 | b8716596 | Michael Hanselmann | raise errors.ProgrammerError("NIC mode '%s' not handled" % nic_mode) |
493 | b8716596 | Michael Hanselmann | |
494 | b8716596 | Michael Hanselmann | _AddIpAddress("%s/%s" % (link, nic.ip),
|
495 | b8716596 | Michael Hanselmann | "instance:%s/nic:%d" % (instance.name, idx))
|
496 | 0ce8f948 | Iustin Pop | |
497 | 0ce8f948 | Iustin Pop | for ip, owners in ips.items(): |
498 | 0ce8f948 | Iustin Pop | if len(owners) > 1: |
499 | 0ce8f948 | Iustin Pop | result.append("IP address %s is used by multiple owners: %s" %
|
500 | 1f864b60 | Iustin Pop | (ip, utils.CommaJoin(owners))) |
501 | b8716596 | Michael Hanselmann | |
502 | a8083063 | Iustin Pop | return result
|
503 | a8083063 | Iustin Pop | |
504 | 4a89c54a | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
505 | 4a89c54a | Iustin Pop | def VerifyConfig(self): |
506 | 4a89c54a | Iustin Pop | """Verify function.
|
507 | 4a89c54a | Iustin Pop |
|
508 | 4a89c54a | Iustin Pop | This is just a wrapper over L{_UnlockedVerifyConfig}.
|
509 | 4a89c54a | Iustin Pop |
|
510 | 4a89c54a | Iustin Pop | @rtype: list
|
511 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
512 | 4a89c54a | Iustin Pop | configuration errors
|
513 | 4a89c54a | Iustin Pop |
|
514 | 4a89c54a | Iustin Pop | """
|
515 | 4a89c54a | Iustin Pop | return self._UnlockedVerifyConfig() |
516 | 4a89c54a | Iustin Pop | |
517 | f78ede4e | Guido Trotter | def _UnlockedSetDiskID(self, disk, node_name): |
518 | a8083063 | Iustin Pop | """Convert the unique ID to the ID needed on the target nodes.
|
519 | a8083063 | Iustin Pop |
|
520 | a8083063 | Iustin Pop | This is used only for drbd, which needs ip/port configuration.
|
521 | a8083063 | Iustin Pop |
|
522 | a8083063 | Iustin Pop | The routine descends down and updates its children also, because
|
523 | a8083063 | Iustin Pop | this helps when the only the top device is passed to the remote
|
524 | a8083063 | Iustin Pop | node.
|
525 | a8083063 | Iustin Pop |
|
526 | f78ede4e | Guido Trotter | This function is for internal use, when the config lock is already held.
|
527 | f78ede4e | Guido Trotter |
|
528 | a8083063 | Iustin Pop | """
|
529 | a8083063 | Iustin Pop | if disk.children:
|
530 | a8083063 | Iustin Pop | for child in disk.children: |
531 | f78ede4e | Guido Trotter | self._UnlockedSetDiskID(child, node_name)
|
532 | a8083063 | Iustin Pop | |
533 | a8083063 | Iustin Pop | if disk.logical_id is None and disk.physical_id is not None: |
534 | a8083063 | Iustin Pop | return
|
535 | ffa1c0dc | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
536 | f9518d38 | Iustin Pop | pnode, snode, port, pminor, sminor, secret = disk.logical_id |
537 | a8083063 | Iustin Pop | if node_name not in (pnode, snode): |
538 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("DRBD device not knowing node %s" % |
539 | 3ecf6786 | Iustin Pop | node_name) |
540 | f78ede4e | Guido Trotter | pnode_info = self._UnlockedGetNodeInfo(pnode)
|
541 | f78ede4e | Guido Trotter | snode_info = self._UnlockedGetNodeInfo(snode)
|
542 | a8083063 | Iustin Pop | if pnode_info is None or snode_info is None: |
543 | a8083063 | Iustin Pop | raise errors.ConfigurationError("Can't find primary or secondary node" |
544 | a8083063 | Iustin Pop | " for %s" % str(disk)) |
545 | ffa1c0dc | Iustin Pop | p_data = (pnode_info.secondary_ip, port) |
546 | ffa1c0dc | Iustin Pop | s_data = (snode_info.secondary_ip, port) |
547 | a8083063 | Iustin Pop | if pnode == node_name:
|
548 | f9518d38 | Iustin Pop | disk.physical_id = p_data + s_data + (pminor, secret) |
549 | a8083063 | Iustin Pop | else: # it must be secondary, we tested above |
550 | f9518d38 | Iustin Pop | disk.physical_id = s_data + p_data + (sminor, secret) |
551 | a8083063 | Iustin Pop | else:
|
552 | a8083063 | Iustin Pop | disk.physical_id = disk.logical_id |
553 | a8083063 | Iustin Pop | return
|
554 | a8083063 | Iustin Pop | |
555 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
556 | f78ede4e | Guido Trotter | def SetDiskID(self, disk, node_name): |
557 | f78ede4e | Guido Trotter | """Convert the unique ID to the ID needed on the target nodes.
|
558 | f78ede4e | Guido Trotter |
|
559 | f78ede4e | Guido Trotter | This is used only for drbd, which needs ip/port configuration.
|
560 | f78ede4e | Guido Trotter |
|
561 | f78ede4e | Guido Trotter | The routine descends down and updates its children also, because
|
562 | f78ede4e | Guido Trotter | this helps when the only the top device is passed to the remote
|
563 | f78ede4e | Guido Trotter | node.
|
564 | f78ede4e | Guido Trotter |
|
565 | f78ede4e | Guido Trotter | """
|
566 | f78ede4e | Guido Trotter | return self._UnlockedSetDiskID(disk, node_name) |
567 | f78ede4e | Guido Trotter | |
568 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
569 | b2fddf63 | Iustin Pop | def AddTcpUdpPort(self, port): |
570 | b2fddf63 | Iustin Pop | """Adds a new port to the available port pool.
|
571 | b2fddf63 | Iustin Pop |
|
572 | b2fddf63 | Iustin Pop | """
|
573 | 264bb3c5 | Michael Hanselmann | if not isinstance(port, int): |
574 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed for port") |
575 | 264bb3c5 | Michael Hanselmann | |
576 | b2fddf63 | Iustin Pop | self._config_data.cluster.tcpudp_port_pool.add(port)
|
577 | 264bb3c5 | Michael Hanselmann | self._WriteConfig()
|
578 | 264bb3c5 | Michael Hanselmann | |
579 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
580 | b2fddf63 | Iustin Pop | def GetPortList(self): |
581 | 264bb3c5 | Michael Hanselmann | """Returns a copy of the current port list.
|
582 | 264bb3c5 | Michael Hanselmann |
|
583 | 264bb3c5 | Michael Hanselmann | """
|
584 | b2fddf63 | Iustin Pop | return self._config_data.cluster.tcpudp_port_pool.copy() |
585 | 264bb3c5 | Michael Hanselmann | |
586 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
587 | a8083063 | Iustin Pop | def AllocatePort(self): |
588 | a8083063 | Iustin Pop | """Allocate a port.
|
589 | a8083063 | Iustin Pop |
|
590 | b2fddf63 | Iustin Pop | The port will be taken from the available port pool or from the
|
591 | b2fddf63 | Iustin Pop | default port range (and in this case we increase
|
592 | b2fddf63 | Iustin Pop | highest_used_port).
|
593 | a8083063 | Iustin Pop |
|
594 | a8083063 | Iustin Pop | """
|
595 | 264bb3c5 | Michael Hanselmann | # If there are TCP/IP ports configured, we use them first.
|
596 | b2fddf63 | Iustin Pop | if self._config_data.cluster.tcpudp_port_pool: |
597 | b2fddf63 | Iustin Pop | port = self._config_data.cluster.tcpudp_port_pool.pop()
|
598 | 264bb3c5 | Michael Hanselmann | else:
|
599 | 264bb3c5 | Michael Hanselmann | port = self._config_data.cluster.highest_used_port + 1 |
600 | 264bb3c5 | Michael Hanselmann | if port >= constants.LAST_DRBD_PORT:
|
601 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("The highest used port is greater" |
602 | 3ecf6786 | Iustin Pop | " than %s. Aborting." %
|
603 | 3ecf6786 | Iustin Pop | constants.LAST_DRBD_PORT) |
604 | 264bb3c5 | Michael Hanselmann | self._config_data.cluster.highest_used_port = port
|
605 | a8083063 | Iustin Pop | |
606 | a8083063 | Iustin Pop | self._WriteConfig()
|
607 | a8083063 | Iustin Pop | return port
|
608 | a8083063 | Iustin Pop | |
609 | 6d2e83d5 | Iustin Pop | def _UnlockedComputeDRBDMap(self): |
610 | a81c53c9 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
611 | a81c53c9 | Iustin Pop |
|
612 | 4a89c54a | Iustin Pop | @rtype: (dict, list)
|
613 | c41eea6e | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
614 | c41eea6e | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
615 | 4a89c54a | Iustin Pop | an empty list), and a list of duplicates; if the duplicates
|
616 | 4a89c54a | Iustin Pop | list is not empty, the configuration is corrupted and its caller
|
617 | 4a89c54a | Iustin Pop | should raise an exception
|
618 | a81c53c9 | Iustin Pop |
|
619 | a81c53c9 | Iustin Pop | """
|
620 | a81c53c9 | Iustin Pop | def _AppendUsedPorts(instance_name, disk, used): |
621 | 4a89c54a | Iustin Pop | duplicates = [] |
622 | f9518d38 | Iustin Pop | if disk.dev_type == constants.LD_DRBD8 and len(disk.logical_id) >= 5: |
623 | 7c4d6c7b | Michael Hanselmann | node_a, node_b, _, minor_a, minor_b = disk.logical_id[:5]
|
624 | 7c4d6c7b | Michael Hanselmann | for node, port in ((node_a, minor_a), (node_b, minor_b)): |
625 | 4a89c54a | Iustin Pop | assert node in used, ("Node '%s' of instance '%s' not found" |
626 | 4a89c54a | Iustin Pop | " in node list" % (node, instance_name))
|
627 | a81c53c9 | Iustin Pop | if port in used[node]: |
628 | 4a89c54a | Iustin Pop | duplicates.append((node, port, instance_name, used[node][port])) |
629 | 4a89c54a | Iustin Pop | else:
|
630 | 4a89c54a | Iustin Pop | used[node][port] = instance_name |
631 | a81c53c9 | Iustin Pop | if disk.children:
|
632 | a81c53c9 | Iustin Pop | for child in disk.children: |
633 | 4a89c54a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance_name, child, used)) |
634 | 4a89c54a | Iustin Pop | return duplicates
|
635 | a81c53c9 | Iustin Pop | |
636 | 4a89c54a | Iustin Pop | duplicates = [] |
637 | a81c53c9 | Iustin Pop | my_dict = dict((node, {}) for node in self._config_data.nodes) |
638 | 79b26a7a | Iustin Pop | for instance in self._config_data.instances.itervalues(): |
639 | 79b26a7a | Iustin Pop | for disk in instance.disks: |
640 | 79b26a7a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance.name, disk, my_dict)) |
641 | a81c53c9 | Iustin Pop | for (node, minor), instance in self._temporary_drbds.iteritems(): |
642 | 79b26a7a | Iustin Pop | if minor in my_dict[node] and my_dict[node][minor] != instance: |
643 | 4a89c54a | Iustin Pop | duplicates.append((node, minor, instance, my_dict[node][minor])) |
644 | 4a89c54a | Iustin Pop | else:
|
645 | 4a89c54a | Iustin Pop | my_dict[node][minor] = instance |
646 | 4a89c54a | Iustin Pop | return my_dict, duplicates
|
647 | a81c53c9 | Iustin Pop | |
648 | a81c53c9 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
649 | 6d2e83d5 | Iustin Pop | def ComputeDRBDMap(self): |
650 | 6d2e83d5 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
651 | 6d2e83d5 | Iustin Pop |
|
652 | 6d2e83d5 | Iustin Pop | This is just a wrapper over L{_UnlockedComputeDRBDMap}.
|
653 | 6d2e83d5 | Iustin Pop |
|
654 | 6d2e83d5 | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
655 | 6d2e83d5 | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
656 | 6d2e83d5 | Iustin Pop | an empty list).
|
657 | 6d2e83d5 | Iustin Pop |
|
658 | 6d2e83d5 | Iustin Pop | """
|
659 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
660 | 4a89c54a | Iustin Pop | if duplicates:
|
661 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
662 | 4a89c54a | Iustin Pop | str(duplicates))
|
663 | 4a89c54a | Iustin Pop | return d_map
|
664 | 6d2e83d5 | Iustin Pop | |
665 | 6d2e83d5 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
666 | a81c53c9 | Iustin Pop | def AllocateDRBDMinor(self, nodes, instance): |
667 | a81c53c9 | Iustin Pop | """Allocate a drbd minor.
|
668 | a81c53c9 | Iustin Pop |
|
669 | a81c53c9 | Iustin Pop | The free minor will be automatically computed from the existing
|
670 | a81c53c9 | Iustin Pop | devices. A node can be given multiple times in order to allocate
|
671 | a81c53c9 | Iustin Pop | multiple minors. The result is the list of minors, in the same
|
672 | a81c53c9 | Iustin Pop | order as the passed nodes.
|
673 | a81c53c9 | Iustin Pop |
|
674 | 32388e6d | Iustin Pop | @type instance: string
|
675 | 32388e6d | Iustin Pop | @param instance: the instance for which we allocate minors
|
676 | 32388e6d | Iustin Pop |
|
677 | a81c53c9 | Iustin Pop | """
|
678 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
679 | 4a89c54a | Iustin Pop | "Invalid argument '%s' passed to AllocateDRBDMinor" % instance
|
680 | 32388e6d | Iustin Pop | |
681 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
682 | 4a89c54a | Iustin Pop | if duplicates:
|
683 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
684 | 4a89c54a | Iustin Pop | str(duplicates))
|
685 | a81c53c9 | Iustin Pop | result = [] |
686 | a81c53c9 | Iustin Pop | for nname in nodes: |
687 | a81c53c9 | Iustin Pop | ndata = d_map[nname] |
688 | a81c53c9 | Iustin Pop | if not ndata: |
689 | a81c53c9 | Iustin Pop | # no minors used, we can start at 0
|
690 | a81c53c9 | Iustin Pop | result.append(0)
|
691 | a81c53c9 | Iustin Pop | ndata[0] = instance
|
692 | d48663e4 | Iustin Pop | self._temporary_drbds[(nname, 0)] = instance |
693 | a81c53c9 | Iustin Pop | continue
|
694 | a81c53c9 | Iustin Pop | keys = ndata.keys() |
695 | a81c53c9 | Iustin Pop | keys.sort() |
696 | a81c53c9 | Iustin Pop | ffree = utils.FirstFree(keys) |
697 | a81c53c9 | Iustin Pop | if ffree is None: |
698 | a81c53c9 | Iustin Pop | # return the next minor
|
699 | a81c53c9 | Iustin Pop | # TODO: implement high-limit check
|
700 | a81c53c9 | Iustin Pop | minor = keys[-1] + 1 |
701 | a81c53c9 | Iustin Pop | else:
|
702 | a81c53c9 | Iustin Pop | minor = ffree |
703 | 4a89c54a | Iustin Pop | # double-check minor against current instances
|
704 | 4a89c54a | Iustin Pop | assert minor not in d_map[nname], \ |
705 | 4a89c54a | Iustin Pop | ("Attempt to reuse allocated DRBD minor %d on node %s,"
|
706 | 4a89c54a | Iustin Pop | " already allocated to instance %s" %
|
707 | 4a89c54a | Iustin Pop | (minor, nname, d_map[nname][minor])) |
708 | a81c53c9 | Iustin Pop | ndata[minor] = instance |
709 | 4a89c54a | Iustin Pop | # double-check minor against reservation
|
710 | 4a89c54a | Iustin Pop | r_key = (nname, minor) |
711 | 4a89c54a | Iustin Pop | assert r_key not in self._temporary_drbds, \ |
712 | 4a89c54a | Iustin Pop | ("Attempt to reuse reserved DRBD minor %d on node %s,"
|
713 | 4a89c54a | Iustin Pop | " reserved for instance %s" %
|
714 | 4a89c54a | Iustin Pop | (minor, nname, self._temporary_drbds[r_key]))
|
715 | 4a89c54a | Iustin Pop | self._temporary_drbds[r_key] = instance
|
716 | 4a89c54a | Iustin Pop | result.append(minor) |
717 | a81c53c9 | Iustin Pop | logging.debug("Request to allocate drbd minors, input: %s, returning %s",
|
718 | a81c53c9 | Iustin Pop | nodes, result) |
719 | a81c53c9 | Iustin Pop | return result
|
720 | a81c53c9 | Iustin Pop | |
721 | 61cf6b5e | Iustin Pop | def _UnlockedReleaseDRBDMinors(self, instance): |
722 | a81c53c9 | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
723 | a81c53c9 | Iustin Pop |
|
724 | a81c53c9 | Iustin Pop | @type instance: string
|
725 | a81c53c9 | Iustin Pop | @param instance: the instance for which temporary minors should be
|
726 | a81c53c9 | Iustin Pop | released
|
727 | a81c53c9 | Iustin Pop |
|
728 | a81c53c9 | Iustin Pop | """
|
729 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
730 | 32388e6d | Iustin Pop | "Invalid argument passed to ReleaseDRBDMinors"
|
731 | a81c53c9 | Iustin Pop | for key, name in self._temporary_drbds.items(): |
732 | a81c53c9 | Iustin Pop | if name == instance:
|
733 | a81c53c9 | Iustin Pop | del self._temporary_drbds[key] |
734 | a81c53c9 | Iustin Pop | |
735 | 61cf6b5e | Iustin Pop | @locking.ssynchronized(_config_lock)
|
736 | 61cf6b5e | Iustin Pop | def ReleaseDRBDMinors(self, instance): |
737 | 61cf6b5e | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
738 | 61cf6b5e | Iustin Pop |
|
739 | 61cf6b5e | Iustin Pop | This should be called on the error paths, on the success paths
|
740 | 61cf6b5e | Iustin Pop | it's automatically called by the ConfigWriter add and update
|
741 | 61cf6b5e | Iustin Pop | functions.
|
742 | 61cf6b5e | Iustin Pop |
|
743 | 61cf6b5e | Iustin Pop | This function is just a wrapper over L{_UnlockedReleaseDRBDMinors}.
|
744 | 61cf6b5e | Iustin Pop |
|
745 | 61cf6b5e | Iustin Pop | @type instance: string
|
746 | 61cf6b5e | Iustin Pop | @param instance: the instance for which temporary minors should be
|
747 | 61cf6b5e | Iustin Pop | released
|
748 | 61cf6b5e | Iustin Pop |
|
749 | 61cf6b5e | Iustin Pop | """
|
750 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance)
|
751 | 61cf6b5e | Iustin Pop | |
752 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
753 | 4a8b186a | Michael Hanselmann | def GetConfigVersion(self): |
754 | 4a8b186a | Michael Hanselmann | """Get the configuration version.
|
755 | 4a8b186a | Michael Hanselmann |
|
756 | 4a8b186a | Michael Hanselmann | @return: Config version
|
757 | 4a8b186a | Michael Hanselmann |
|
758 | 4a8b186a | Michael Hanselmann | """
|
759 | 4a8b186a | Michael Hanselmann | return self._config_data.version |
760 | 4a8b186a | Michael Hanselmann | |
761 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
762 | 4a8b186a | Michael Hanselmann | def GetClusterName(self): |
763 | 4a8b186a | Michael Hanselmann | """Get cluster name.
|
764 | 4a8b186a | Michael Hanselmann |
|
765 | 4a8b186a | Michael Hanselmann | @return: Cluster name
|
766 | 4a8b186a | Michael Hanselmann |
|
767 | 4a8b186a | Michael Hanselmann | """
|
768 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.cluster_name |
769 | 4a8b186a | Michael Hanselmann | |
770 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
771 | 4a8b186a | Michael Hanselmann | def GetMasterNode(self): |
772 | 4a8b186a | Michael Hanselmann | """Get the hostname of the master node for this cluster.
|
773 | 4a8b186a | Michael Hanselmann |
|
774 | 4a8b186a | Michael Hanselmann | @return: Master hostname
|
775 | 4a8b186a | Michael Hanselmann |
|
776 | 4a8b186a | Michael Hanselmann | """
|
777 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_node |
778 | 4a8b186a | Michael Hanselmann | |
779 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
780 | 4a8b186a | Michael Hanselmann | def GetMasterIP(self): |
781 | 4a8b186a | Michael Hanselmann | """Get the IP of the master node for this cluster.
|
782 | 4a8b186a | Michael Hanselmann |
|
783 | 4a8b186a | Michael Hanselmann | @return: Master IP
|
784 | 4a8b186a | Michael Hanselmann |
|
785 | 4a8b186a | Michael Hanselmann | """
|
786 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_ip |
787 | 4a8b186a | Michael Hanselmann | |
788 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
789 | 4a8b186a | Michael Hanselmann | def GetMasterNetdev(self): |
790 | 4a8b186a | Michael Hanselmann | """Get the master network device for this cluster.
|
791 | 4a8b186a | Michael Hanselmann |
|
792 | 4a8b186a | Michael Hanselmann | """
|
793 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_netdev |
794 | 4a8b186a | Michael Hanselmann | |
795 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
796 | 4a8b186a | Michael Hanselmann | def GetFileStorageDir(self): |
797 | 4a8b186a | Michael Hanselmann | """Get the file storage dir for this cluster.
|
798 | 4a8b186a | Michael Hanselmann |
|
799 | 4a8b186a | Michael Hanselmann | """
|
800 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.file_storage_dir |
801 | 4a8b186a | Michael Hanselmann | |
802 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
803 | 4a8b186a | Michael Hanselmann | def GetHypervisorType(self): |
804 | 4a8b186a | Michael Hanselmann | """Get the hypervisor type for this cluster.
|
805 | 4a8b186a | Michael Hanselmann |
|
806 | 4a8b186a | Michael Hanselmann | """
|
807 | 066f465d | Guido Trotter | return self._config_data.cluster.enabled_hypervisors[0] |
808 | 4a8b186a | Michael Hanselmann | |
809 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
810 | a8083063 | Iustin Pop | def GetHostKey(self): |
811 | a8083063 | Iustin Pop | """Return the rsa hostkey from the config.
|
812 | a8083063 | Iustin Pop |
|
813 | c41eea6e | Iustin Pop | @rtype: string
|
814 | c41eea6e | Iustin Pop | @return: the rsa hostkey
|
815 | a8083063 | Iustin Pop |
|
816 | a8083063 | Iustin Pop | """
|
817 | a8083063 | Iustin Pop | return self._config_data.cluster.rsahostkeypub |
818 | a8083063 | Iustin Pop | |
819 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
820 | 0debfb35 | Guido Trotter | def AddInstance(self, instance, ec_id): |
821 | a8083063 | Iustin Pop | """Add an instance to the config.
|
822 | a8083063 | Iustin Pop |
|
823 | a8083063 | Iustin Pop | This should be used after creating a new instance.
|
824 | a8083063 | Iustin Pop |
|
825 | c41eea6e | Iustin Pop | @type instance: L{objects.Instance}
|
826 | c41eea6e | Iustin Pop | @param instance: the instance object
|
827 | c41eea6e | Iustin Pop |
|
828 | a8083063 | Iustin Pop | """
|
829 | a8083063 | Iustin Pop | if not isinstance(instance, objects.Instance): |
830 | a8083063 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed to AddInstance") |
831 | a8083063 | Iustin Pop | |
832 | e00fb268 | Iustin Pop | if instance.disk_template != constants.DT_DISKLESS:
|
833 | e00fb268 | Iustin Pop | all_lvs = instance.MapLVsByNode() |
834 | 74a48621 | Iustin Pop | logging.info("Instance '%s' DISK_LAYOUT: %s", instance.name, all_lvs)
|
835 | 923b1523 | Iustin Pop | |
836 | e4640214 | Guido Trotter | all_macs = self._AllMACs()
|
837 | e4640214 | Guido Trotter | for nic in instance.nics: |
838 | e4640214 | Guido Trotter | if nic.mac in all_macs: |
839 | e4640214 | Guido Trotter | raise errors.ConfigurationError("Cannot add instance %s:" |
840 | 430b923c | Iustin Pop | " MAC address '%s' already in use." %
|
841 | 430b923c | Iustin Pop | (instance.name, nic.mac)) |
842 | 430b923c | Iustin Pop | |
843 | 0debfb35 | Guido Trotter | self._EnsureUUID(instance, ec_id)
|
844 | e4640214 | Guido Trotter | |
845 | b989e85d | Iustin Pop | instance.serial_no = 1
|
846 | d693c864 | Iustin Pop | instance.ctime = instance.mtime = time.time() |
847 | a8083063 | Iustin Pop | self._config_data.instances[instance.name] = instance
|
848 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
849 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance.name)
|
850 | a8083063 | Iustin Pop | self._WriteConfig()
|
851 | a8083063 | Iustin Pop | |
852 | 0debfb35 | Guido Trotter | def _EnsureUUID(self, item, ec_id): |
853 | 430b923c | Iustin Pop | """Ensures a given object has a valid UUID.
|
854 | 430b923c | Iustin Pop |
|
855 | 430b923c | Iustin Pop | @param item: the instance or node to be checked
|
856 | 0debfb35 | Guido Trotter | @param ec_id: the execution context id for the uuid reservation
|
857 | 430b923c | Iustin Pop |
|
858 | 430b923c | Iustin Pop | """
|
859 | 430b923c | Iustin Pop | if not item.uuid: |
860 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(ec_id)
|
861 | be0fc05d | Iustin Pop | elif item.uuid in self._AllIDs(include_temporary=True): |
862 | be0fc05d | Iustin Pop | raise errors.ConfigurationError("Cannot add '%s': UUID %s already" |
863 | be0fc05d | Iustin Pop | " in use" % (item.name, item.uuid))
|
864 | 430b923c | Iustin Pop | |
865 | 6a408fb2 | Iustin Pop | def _SetInstanceStatus(self, instance_name, status): |
866 | 6a408fb2 | Iustin Pop | """Set the instance's status to a given value.
|
867 | a8083063 | Iustin Pop |
|
868 | a8083063 | Iustin Pop | """
|
869 | 0d68c45d | Iustin Pop | assert isinstance(status, bool), \ |
870 | 0d68c45d | Iustin Pop | "Invalid status '%s' passed to SetInstanceStatus" % (status,)
|
871 | a8083063 | Iustin Pop | |
872 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
873 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % |
874 | 3ecf6786 | Iustin Pop | instance_name) |
875 | a8083063 | Iustin Pop | instance = self._config_data.instances[instance_name]
|
876 | 0d68c45d | Iustin Pop | if instance.admin_up != status:
|
877 | 0d68c45d | Iustin Pop | instance.admin_up = status |
878 | b989e85d | Iustin Pop | instance.serial_no += 1
|
879 | d693c864 | Iustin Pop | instance.mtime = time.time() |
880 | 455a3445 | Iustin Pop | self._WriteConfig()
|
881 | a8083063 | Iustin Pop | |
882 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
883 | 6a408fb2 | Iustin Pop | def MarkInstanceUp(self, instance_name): |
884 | 6a408fb2 | Iustin Pop | """Mark the instance status to up in the config.
|
885 | 6a408fb2 | Iustin Pop |
|
886 | 6a408fb2 | Iustin Pop | """
|
887 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, True) |
888 | 6a408fb2 | Iustin Pop | |
889 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
890 | a8083063 | Iustin Pop | def RemoveInstance(self, instance_name): |
891 | a8083063 | Iustin Pop | """Remove the instance from the configuration.
|
892 | a8083063 | Iustin Pop |
|
893 | a8083063 | Iustin Pop | """
|
894 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
895 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % instance_name) |
896 | a8083063 | Iustin Pop | del self._config_data.instances[instance_name] |
897 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
898 | a8083063 | Iustin Pop | self._WriteConfig()
|
899 | a8083063 | Iustin Pop | |
900 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
901 | fc95f88f | Iustin Pop | def RenameInstance(self, old_name, new_name): |
902 | fc95f88f | Iustin Pop | """Rename an instance.
|
903 | fc95f88f | Iustin Pop |
|
904 | fc95f88f | Iustin Pop | This needs to be done in ConfigWriter and not by RemoveInstance
|
905 | fc95f88f | Iustin Pop | combined with AddInstance as only we can guarantee an atomic
|
906 | fc95f88f | Iustin Pop | rename.
|
907 | fc95f88f | Iustin Pop |
|
908 | fc95f88f | Iustin Pop | """
|
909 | fc95f88f | Iustin Pop | if old_name not in self._config_data.instances: |
910 | fc95f88f | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % old_name) |
911 | fc95f88f | Iustin Pop | inst = self._config_data.instances[old_name]
|
912 | fc95f88f | Iustin Pop | del self._config_data.instances[old_name] |
913 | fc95f88f | Iustin Pop | inst.name = new_name |
914 | b23c4333 | Manuel Franceschini | |
915 | b23c4333 | Manuel Franceschini | for disk in inst.disks: |
916 | b23c4333 | Manuel Franceschini | if disk.dev_type == constants.LD_FILE:
|
917 | b23c4333 | Manuel Franceschini | # rename the file paths in logical and physical id
|
918 | b23c4333 | Manuel Franceschini | file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1]))
|
919 | b23c4333 | Manuel Franceschini | disk.physical_id = disk.logical_id = (disk.logical_id[0],
|
920 | c4feafe8 | Iustin Pop | utils.PathJoin(file_storage_dir, |
921 | c4feafe8 | Iustin Pop | inst.name, |
922 | c4feafe8 | Iustin Pop | disk.iv_name)) |
923 | b23c4333 | Manuel Franceschini | |
924 | fc95f88f | Iustin Pop | self._config_data.instances[inst.name] = inst
|
925 | fc95f88f | Iustin Pop | self._WriteConfig()
|
926 | fc95f88f | Iustin Pop | |
927 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
928 | a8083063 | Iustin Pop | def MarkInstanceDown(self, instance_name): |
929 | a8083063 | Iustin Pop | """Mark the status of an instance to down in the configuration.
|
930 | a8083063 | Iustin Pop |
|
931 | a8083063 | Iustin Pop | """
|
932 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, False) |
933 | a8083063 | Iustin Pop | |
934 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceList(self): |
935 | 94bbfece | Iustin Pop | """Get the list of instances.
|
936 | 94bbfece | Iustin Pop |
|
937 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
938 | 94bbfece | Iustin Pop |
|
939 | 94bbfece | Iustin Pop | """
|
940 | 94bbfece | Iustin Pop | return self._config_data.instances.keys() |
941 | 94bbfece | Iustin Pop | |
942 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
943 | a8083063 | Iustin Pop | def GetInstanceList(self): |
944 | a8083063 | Iustin Pop | """Get the list of instances.
|
945 | a8083063 | Iustin Pop |
|
946 | c41eea6e | Iustin Pop | @return: array of instances, ex. ['instance2.example.com',
|
947 | c41eea6e | Iustin Pop | 'instance1.example.com']
|
948 | a8083063 | Iustin Pop |
|
949 | a8083063 | Iustin Pop | """
|
950 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceList() |
951 | a8083063 | Iustin Pop | |
952 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
953 | a8083063 | Iustin Pop | def ExpandInstanceName(self, short_name): |
954 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
955 | a8083063 | Iustin Pop |
|
956 | a8083063 | Iustin Pop | """
|
957 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
958 | bcdf16d7 | Guido Trotter | self._config_data.instances.keys(),
|
959 | bcdf16d7 | Guido Trotter | case_sensitive=False)
|
960 | a8083063 | Iustin Pop | |
961 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceInfo(self, instance_name): |
962 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
963 | 94bbfece | Iustin Pop |
|
964 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
965 | 94bbfece | Iustin Pop |
|
966 | 94bbfece | Iustin Pop | """
|
967 | 94bbfece | Iustin Pop | if instance_name not in self._config_data.instances: |
968 | 94bbfece | Iustin Pop | return None |
969 | 94bbfece | Iustin Pop | |
970 | 94bbfece | Iustin Pop | return self._config_data.instances[instance_name] |
971 | 94bbfece | Iustin Pop | |
972 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
973 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
974 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
975 | a8083063 | Iustin Pop |
|
976 | 5bbd3f7f | Michael Hanselmann | It takes the information from the configuration file. Other information of
|
977 | a8083063 | Iustin Pop | an instance are taken from the live systems.
|
978 | a8083063 | Iustin Pop |
|
979 | c41eea6e | Iustin Pop | @param instance_name: name of the instance, e.g.
|
980 | c41eea6e | Iustin Pop | I{instance1.example.com}
|
981 | a8083063 | Iustin Pop |
|
982 | c41eea6e | Iustin Pop | @rtype: L{objects.Instance}
|
983 | c41eea6e | Iustin Pop | @return: the instance object
|
984 | a8083063 | Iustin Pop |
|
985 | a8083063 | Iustin Pop | """
|
986 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceInfo(instance_name) |
987 | a8083063 | Iustin Pop | |
988 | 0b2de758 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
989 | 0b2de758 | Iustin Pop | def GetAllInstancesInfo(self): |
990 | 0b2de758 | Iustin Pop | """Get the configuration of all instances.
|
991 | 0b2de758 | Iustin Pop |
|
992 | 0b2de758 | Iustin Pop | @rtype: dict
|
993 | 5fcc718f | Iustin Pop | @return: dict of (instance, instance_info), where instance_info is what
|
994 | 0b2de758 | Iustin Pop | would GetInstanceInfo return for the node
|
995 | 0b2de758 | Iustin Pop |
|
996 | 0b2de758 | Iustin Pop | """
|
997 | 64d3bd52 | Guido Trotter | my_dict = dict([(instance, self._UnlockedGetInstanceInfo(instance)) |
998 | 64d3bd52 | Guido Trotter | for instance in self._UnlockedGetInstanceList()]) |
999 | 0b2de758 | Iustin Pop | return my_dict
|
1000 | 0b2de758 | Iustin Pop | |
1001 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1002 | 0debfb35 | Guido Trotter | def AddNode(self, node, ec_id): |
1003 | a8083063 | Iustin Pop | """Add a node to the configuration.
|
1004 | a8083063 | Iustin Pop |
|
1005 | c41eea6e | Iustin Pop | @type node: L{objects.Node}
|
1006 | c41eea6e | Iustin Pop | @param node: a Node instance
|
1007 | a8083063 | Iustin Pop |
|
1008 | a8083063 | Iustin Pop | """
|
1009 | 099c52ad | Iustin Pop | logging.info("Adding node %s to configuration", node.name)
|
1010 | d8470559 | Michael Hanselmann | |
1011 | 0debfb35 | Guido Trotter | self._EnsureUUID(node, ec_id)
|
1012 | 430b923c | Iustin Pop | |
1013 | b989e85d | Iustin Pop | node.serial_no = 1
|
1014 | d693c864 | Iustin Pop | node.ctime = node.mtime = time.time() |
1015 | a8083063 | Iustin Pop | self._config_data.nodes[node.name] = node
|
1016 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1017 | a8083063 | Iustin Pop | self._WriteConfig()
|
1018 | a8083063 | Iustin Pop | |
1019 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1020 | a8083063 | Iustin Pop | def RemoveNode(self, node_name): |
1021 | a8083063 | Iustin Pop | """Remove a node from the configuration.
|
1022 | a8083063 | Iustin Pop |
|
1023 | a8083063 | Iustin Pop | """
|
1024 | 099c52ad | Iustin Pop | logging.info("Removing node %s from configuration", node_name)
|
1025 | d8470559 | Michael Hanselmann | |
1026 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1027 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown node '%s'" % node_name) |
1028 | a8083063 | Iustin Pop | |
1029 | a8083063 | Iustin Pop | del self._config_data.nodes[node_name] |
1030 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1031 | a8083063 | Iustin Pop | self._WriteConfig()
|
1032 | a8083063 | Iustin Pop | |
1033 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1034 | a8083063 | Iustin Pop | def ExpandNodeName(self, short_name): |
1035 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
1036 | a8083063 | Iustin Pop |
|
1037 | a8083063 | Iustin Pop | """
|
1038 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
1039 | bcdf16d7 | Guido Trotter | self._config_data.nodes.keys(),
|
1040 | bcdf16d7 | Guido Trotter | case_sensitive=False)
|
1041 | a8083063 | Iustin Pop | |
1042 | f78ede4e | Guido Trotter | def _UnlockedGetNodeInfo(self, node_name): |
1043 | a8083063 | Iustin Pop | """Get the configuration of a node, as stored in the config.
|
1044 | a8083063 | Iustin Pop |
|
1045 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1046 | c41eea6e | Iustin Pop | held.
|
1047 | f78ede4e | Guido Trotter |
|
1048 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1049 | a8083063 | Iustin Pop |
|
1050 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1051 | c41eea6e | Iustin Pop | @return: the node object
|
1052 | a8083063 | Iustin Pop |
|
1053 | a8083063 | Iustin Pop | """
|
1054 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1055 | a8083063 | Iustin Pop | return None |
1056 | a8083063 | Iustin Pop | |
1057 | a8083063 | Iustin Pop | return self._config_data.nodes[node_name] |
1058 | a8083063 | Iustin Pop | |
1059 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1060 | f78ede4e | Guido Trotter | def GetNodeInfo(self, node_name): |
1061 | f78ede4e | Guido Trotter | """Get the configuration of a node, as stored in the config.
|
1062 | f78ede4e | Guido Trotter |
|
1063 | c41eea6e | Iustin Pop | This is just a locked wrapper over L{_UnlockedGetNodeInfo}.
|
1064 | f78ede4e | Guido Trotter |
|
1065 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1066 | c41eea6e | Iustin Pop |
|
1067 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1068 | c41eea6e | Iustin Pop | @return: the node object
|
1069 | f78ede4e | Guido Trotter |
|
1070 | f78ede4e | Guido Trotter | """
|
1071 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeInfo(node_name) |
1072 | f78ede4e | Guido Trotter | |
1073 | f78ede4e | Guido Trotter | def _UnlockedGetNodeList(self): |
1074 | a8083063 | Iustin Pop | """Return the list of nodes which are in the configuration.
|
1075 | a8083063 | Iustin Pop |
|
1076 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1077 | c41eea6e | Iustin Pop | held.
|
1078 | c41eea6e | Iustin Pop |
|
1079 | c41eea6e | Iustin Pop | @rtype: list
|
1080 | f78ede4e | Guido Trotter |
|
1081 | a8083063 | Iustin Pop | """
|
1082 | a8083063 | Iustin Pop | return self._config_data.nodes.keys() |
1083 | a8083063 | Iustin Pop | |
1084 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1085 | f78ede4e | Guido Trotter | def GetNodeList(self): |
1086 | f78ede4e | Guido Trotter | """Return the list of nodes which are in the configuration.
|
1087 | f78ede4e | Guido Trotter |
|
1088 | f78ede4e | Guido Trotter | """
|
1089 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeList() |
1090 | f78ede4e | Guido Trotter | |
1091 | 6819dc49 | Iustin Pop | def _UnlockedGetOnlineNodeList(self): |
1092 | 94a02bb5 | Iustin Pop | """Return the list of nodes which are online.
|
1093 | 94a02bb5 | Iustin Pop |
|
1094 | 94a02bb5 | Iustin Pop | """
|
1095 | 94a02bb5 | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
1096 | 94a02bb5 | Iustin Pop | for node in self._UnlockedGetNodeList()] |
1097 | 94a02bb5 | Iustin Pop | return [node.name for node in all_nodes if not node.offline] |
1098 | 94a02bb5 | Iustin Pop | |
1099 | 94a02bb5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1100 | 6819dc49 | Iustin Pop | def GetOnlineNodeList(self): |
1101 | 6819dc49 | Iustin Pop | """Return the list of nodes which are online.
|
1102 | 6819dc49 | Iustin Pop |
|
1103 | 6819dc49 | Iustin Pop | """
|
1104 | 6819dc49 | Iustin Pop | return self._UnlockedGetOnlineNodeList() |
1105 | 6819dc49 | Iustin Pop | |
1106 | 6819dc49 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1107 | d65e5776 | Iustin Pop | def GetAllNodesInfo(self): |
1108 | d65e5776 | Iustin Pop | """Get the configuration of all nodes.
|
1109 | d65e5776 | Iustin Pop |
|
1110 | d65e5776 | Iustin Pop | @rtype: dict
|
1111 | ec0292f1 | Iustin Pop | @return: dict of (node, node_info), where node_info is what
|
1112 | d65e5776 | Iustin Pop | would GetNodeInfo return for the node
|
1113 | d65e5776 | Iustin Pop |
|
1114 | d65e5776 | Iustin Pop | """
|
1115 | d65e5776 | Iustin Pop | my_dict = dict([(node, self._UnlockedGetNodeInfo(node)) |
1116 | d65e5776 | Iustin Pop | for node in self._UnlockedGetNodeList()]) |
1117 | d65e5776 | Iustin Pop | return my_dict
|
1118 | d65e5776 | Iustin Pop | |
1119 | 23f06b2b | Iustin Pop | def _UnlockedGetMasterCandidateStats(self, exceptions=None): |
1120 | ec0292f1 | Iustin Pop | """Get the number of current and maximum desired and possible candidates.
|
1121 | ec0292f1 | Iustin Pop |
|
1122 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1123 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1124 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1125 | e623dbe3 | Guido Trotter | @return: tuple of (current, desired and possible, possible)
|
1126 | ec0292f1 | Iustin Pop |
|
1127 | ec0292f1 | Iustin Pop | """
|
1128 | e623dbe3 | Guido Trotter | mc_now = mc_should = mc_max = 0
|
1129 | 23f06b2b | Iustin Pop | for node in self._config_data.nodes.values(): |
1130 | 23f06b2b | Iustin Pop | if exceptions and node.name in exceptions: |
1131 | 23f06b2b | Iustin Pop | continue
|
1132 | 5bf07049 | Iustin Pop | if not (node.offline or node.drained): |
1133 | ec0292f1 | Iustin Pop | mc_max += 1
|
1134 | ec0292f1 | Iustin Pop | if node.master_candidate:
|
1135 | ec0292f1 | Iustin Pop | mc_now += 1
|
1136 | e623dbe3 | Guido Trotter | mc_should = min(mc_max, self._config_data.cluster.candidate_pool_size) |
1137 | e623dbe3 | Guido Trotter | return (mc_now, mc_should, mc_max)
|
1138 | ec0292f1 | Iustin Pop | |
1139 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1140 | 23f06b2b | Iustin Pop | def GetMasterCandidateStats(self, exceptions=None): |
1141 | ec0292f1 | Iustin Pop | """Get the number of current and maximum possible candidates.
|
1142 | ec0292f1 | Iustin Pop |
|
1143 | ec0292f1 | Iustin Pop | This is just a wrapper over L{_UnlockedGetMasterCandidateStats}.
|
1144 | ec0292f1 | Iustin Pop |
|
1145 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1146 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1147 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1148 | ec0292f1 | Iustin Pop | @return: tuple of (current, max)
|
1149 | ec0292f1 | Iustin Pop |
|
1150 | ec0292f1 | Iustin Pop | """
|
1151 | 23f06b2b | Iustin Pop | return self._UnlockedGetMasterCandidateStats(exceptions) |
1152 | ec0292f1 | Iustin Pop | |
1153 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
1154 | 44485f49 | Guido Trotter | def MaintainCandidatePool(self, exceptions): |
1155 | ec0292f1 | Iustin Pop | """Try to grow the candidate pool to the desired size.
|
1156 | ec0292f1 | Iustin Pop |
|
1157 | 44485f49 | Guido Trotter | @type exceptions: list
|
1158 | 44485f49 | Guido Trotter | @param exceptions: if passed, list of nodes that should be ignored
|
1159 | ec0292f1 | Iustin Pop | @rtype: list
|
1160 | ee513a66 | Iustin Pop | @return: list with the adjusted nodes (L{objects.Node} instances)
|
1161 | ec0292f1 | Iustin Pop |
|
1162 | ec0292f1 | Iustin Pop | """
|
1163 | 44485f49 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats(exceptions)
|
1164 | ec0292f1 | Iustin Pop | mod_list = [] |
1165 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
1166 | ec0292f1 | Iustin Pop | node_list = self._config_data.nodes.keys()
|
1167 | ec0292f1 | Iustin Pop | random.shuffle(node_list) |
1168 | ec0292f1 | Iustin Pop | for name in node_list: |
1169 | ec0292f1 | Iustin Pop | if mc_now >= mc_max:
|
1170 | ec0292f1 | Iustin Pop | break
|
1171 | ec0292f1 | Iustin Pop | node = self._config_data.nodes[name]
|
1172 | 44485f49 | Guido Trotter | if (node.master_candidate or node.offline or node.drained or |
1173 | 44485f49 | Guido Trotter | node.name in exceptions):
|
1174 | ec0292f1 | Iustin Pop | continue
|
1175 | ee513a66 | Iustin Pop | mod_list.append(node) |
1176 | ec0292f1 | Iustin Pop | node.master_candidate = True
|
1177 | ec0292f1 | Iustin Pop | node.serial_no += 1
|
1178 | ec0292f1 | Iustin Pop | mc_now += 1
|
1179 | ec0292f1 | Iustin Pop | if mc_now != mc_max:
|
1180 | ec0292f1 | Iustin Pop | # this should not happen
|
1181 | ec0292f1 | Iustin Pop | logging.warning("Warning: MaintainCandidatePool didn't manage to"
|
1182 | ec0292f1 | Iustin Pop | " fill the candidate pool (%d/%d)", mc_now, mc_max)
|
1183 | ec0292f1 | Iustin Pop | if mod_list:
|
1184 | ec0292f1 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1185 | ec0292f1 | Iustin Pop | self._WriteConfig()
|
1186 | ec0292f1 | Iustin Pop | |
1187 | ec0292f1 | Iustin Pop | return mod_list
|
1188 | ec0292f1 | Iustin Pop | |
1189 | a8083063 | Iustin Pop | def _BumpSerialNo(self): |
1190 | a8083063 | Iustin Pop | """Bump up the serial number of the config.
|
1191 | a8083063 | Iustin Pop |
|
1192 | a8083063 | Iustin Pop | """
|
1193 | 9d38c6e1 | Iustin Pop | self._config_data.serial_no += 1 |
1194 | d693c864 | Iustin Pop | self._config_data.mtime = time.time()
|
1195 | a8083063 | Iustin Pop | |
1196 | 76d5d3a3 | Iustin Pop | def _AllUUIDObjects(self): |
1197 | 76d5d3a3 | Iustin Pop | """Returns all objects with uuid attributes.
|
1198 | 76d5d3a3 | Iustin Pop |
|
1199 | 76d5d3a3 | Iustin Pop | """
|
1200 | 76d5d3a3 | Iustin Pop | return (self._config_data.instances.values() + |
1201 | 76d5d3a3 | Iustin Pop | self._config_data.nodes.values() +
|
1202 | 76d5d3a3 | Iustin Pop | [self._config_data.cluster])
|
1203 | 76d5d3a3 | Iustin Pop | |
1204 | a8083063 | Iustin Pop | def _OpenConfig(self): |
1205 | a8083063 | Iustin Pop | """Read the config data from disk.
|
1206 | a8083063 | Iustin Pop |
|
1207 | a8083063 | Iustin Pop | """
|
1208 | 13998ef2 | Michael Hanselmann | raw_data = utils.ReadFile(self._cfg_file)
|
1209 | 13998ef2 | Michael Hanselmann | |
1210 | a8083063 | Iustin Pop | try:
|
1211 | 13998ef2 | Michael Hanselmann | data = objects.ConfigData.FromDict(serializer.Load(raw_data)) |
1212 | 13998ef2 | Michael Hanselmann | except Exception, err: |
1213 | 13998ef2 | Michael Hanselmann | raise errors.ConfigurationError(err)
|
1214 | 5b263ed7 | Michael Hanselmann | |
1215 | 5b263ed7 | Michael Hanselmann | # Make sure the configuration has the right version
|
1216 | 5b263ed7 | Michael Hanselmann | _ValidateConfig(data) |
1217 | 5b263ed7 | Michael Hanselmann | |
1218 | a8083063 | Iustin Pop | if (not hasattr(data, 'cluster') or |
1219 | 243cdbcc | Michael Hanselmann | not hasattr(data.cluster, 'rsahostkeypub')): |
1220 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Incomplete configuration" |
1221 | 243cdbcc | Michael Hanselmann | " (missing cluster.rsahostkeypub)")
|
1222 | 90d726a8 | Iustin Pop | |
1223 | 90d726a8 | Iustin Pop | # Upgrade configuration if needed
|
1224 | 90d726a8 | Iustin Pop | data.UpgradeConfig() |
1225 | 90d726a8 | Iustin Pop | |
1226 | a8083063 | Iustin Pop | self._config_data = data
|
1227 | 3c7f6c44 | Iustin Pop | # reset the last serial as -1 so that the next write will cause
|
1228 | 0779e3aa | Iustin Pop | # ssconf update
|
1229 | 0779e3aa | Iustin Pop | self._last_cluster_serial = -1 |
1230 | a8083063 | Iustin Pop | |
1231 | 76d5d3a3 | Iustin Pop | # And finally run our (custom) config upgrade sequence
|
1232 | 76d5d3a3 | Iustin Pop | self._UpgradeConfig()
|
1233 | 76d5d3a3 | Iustin Pop | |
1234 | 76d5d3a3 | Iustin Pop | def _UpgradeConfig(self): |
1235 | 76d5d3a3 | Iustin Pop | """Run upgrade steps that cannot be done purely in the objects.
|
1236 | 76d5d3a3 | Iustin Pop |
|
1237 | 76d5d3a3 | Iustin Pop | This is because some data elements need uniqueness across the
|
1238 | 76d5d3a3 | Iustin Pop | whole configuration, etc.
|
1239 | 76d5d3a3 | Iustin Pop |
|
1240 | 76d5d3a3 | Iustin Pop | @warning: this function will call L{_WriteConfig()}, so it needs
|
1241 | 76d5d3a3 | Iustin Pop | to either be called with the lock held or from a safe place
|
1242 | 76d5d3a3 | Iustin Pop | (the constructor)
|
1243 | 76d5d3a3 | Iustin Pop |
|
1244 | 76d5d3a3 | Iustin Pop | """
|
1245 | 76d5d3a3 | Iustin Pop | modified = False
|
1246 | 76d5d3a3 | Iustin Pop | for item in self._AllUUIDObjects(): |
1247 | 76d5d3a3 | Iustin Pop | if item.uuid is None: |
1248 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(_UPGRADE_CONFIG_JID)
|
1249 | 76d5d3a3 | Iustin Pop | modified = True
|
1250 | 76d5d3a3 | Iustin Pop | if modified:
|
1251 | 76d5d3a3 | Iustin Pop | self._WriteConfig()
|
1252 | 4fae38c5 | Guido Trotter | # This is ok even if it acquires the internal lock, as _UpgradeConfig is
|
1253 | 4fae38c5 | Guido Trotter | # only called at config init time, without the lock held
|
1254 | 4fae38c5 | Guido Trotter | self.DropECReservations(_UPGRADE_CONFIG_JID)
|
1255 | 4fae38c5 | Guido Trotter | |
1256 | a4eae71f | Michael Hanselmann | def _DistributeConfig(self, feedback_fn): |
1257 | a8083063 | Iustin Pop | """Distribute the configuration to the other nodes.
|
1258 | a8083063 | Iustin Pop |
|
1259 | a8083063 | Iustin Pop | Currently, this only copies the configuration file. In the future,
|
1260 | a8083063 | Iustin Pop | it could be used to encapsulate the 2/3-phase update mechanism.
|
1261 | a8083063 | Iustin Pop |
|
1262 | a8083063 | Iustin Pop | """
|
1263 | a8083063 | Iustin Pop | if self._offline: |
1264 | a8083063 | Iustin Pop | return True |
1265 | a4eae71f | Michael Hanselmann | |
1266 | a8083063 | Iustin Pop | bad = False
|
1267 | a8083063 | Iustin Pop | |
1268 | 6a5b8b4b | Iustin Pop | node_list = [] |
1269 | 6a5b8b4b | Iustin Pop | addr_list = [] |
1270 | 6a5b8b4b | Iustin Pop | myhostname = self._my_hostname
|
1271 | 6b294c53 | Iustin Pop | # we can skip checking whether _UnlockedGetNodeInfo returns None
|
1272 | 6b294c53 | Iustin Pop | # since the node list comes from _UnlocketGetNodeList, and we are
|
1273 | 6b294c53 | Iustin Pop | # called with the lock held, so no modifications should take place
|
1274 | 6b294c53 | Iustin Pop | # in between
|
1275 | 6a5b8b4b | Iustin Pop | for node_name in self._UnlockedGetNodeList(): |
1276 | 6a5b8b4b | Iustin Pop | if node_name == myhostname:
|
1277 | 6a5b8b4b | Iustin Pop | continue
|
1278 | 6a5b8b4b | Iustin Pop | node_info = self._UnlockedGetNodeInfo(node_name)
|
1279 | 6a5b8b4b | Iustin Pop | if not node_info.master_candidate: |
1280 | 6a5b8b4b | Iustin Pop | continue
|
1281 | 6a5b8b4b | Iustin Pop | node_list.append(node_info.name) |
1282 | 6a5b8b4b | Iustin Pop | addr_list.append(node_info.primary_ip) |
1283 | 6b294c53 | Iustin Pop | |
1284 | 6a5b8b4b | Iustin Pop | result = rpc.RpcRunner.call_upload_file(node_list, self._cfg_file,
|
1285 | 6a5b8b4b | Iustin Pop | address_list=addr_list) |
1286 | 1b54fc6c | Guido Trotter | for to_node, to_result in result.items(): |
1287 | 3cebe102 | Michael Hanselmann | msg = to_result.fail_msg |
1288 | 1b54fc6c | Guido Trotter | if msg:
|
1289 | 1b54fc6c | Guido Trotter | msg = ("Copy of file %s to node %s failed: %s" %
|
1290 | dd7db360 | Iustin Pop | (self._cfg_file, to_node, msg))
|
1291 | 1b54fc6c | Guido Trotter | logging.error(msg) |
1292 | a4eae71f | Michael Hanselmann | |
1293 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1294 | a4eae71f | Michael Hanselmann | feedback_fn(msg) |
1295 | a4eae71f | Michael Hanselmann | |
1296 | a8083063 | Iustin Pop | bad = True
|
1297 | a4eae71f | Michael Hanselmann | |
1298 | a8083063 | Iustin Pop | return not bad |
1299 | a8083063 | Iustin Pop | |
1300 | a4eae71f | Michael Hanselmann | def _WriteConfig(self, destination=None, feedback_fn=None): |
1301 | a8083063 | Iustin Pop | """Write the configuration data to persistent storage.
|
1302 | a8083063 | Iustin Pop |
|
1303 | a8083063 | Iustin Pop | """
|
1304 | a4eae71f | Michael Hanselmann | assert feedback_fn is None or callable(feedback_fn) |
1305 | a4eae71f | Michael Hanselmann | |
1306 | d2231b8c | Iustin Pop | # Warn on config errors, but don't abort the save - the
|
1307 | d2231b8c | Iustin Pop | # configuration has already been modified, and we can't revert;
|
1308 | d2231b8c | Iustin Pop | # the best we can do is to warn the user and save as is, leaving
|
1309 | d2231b8c | Iustin Pop | # recovery to the user
|
1310 | 4a89c54a | Iustin Pop | config_errors = self._UnlockedVerifyConfig()
|
1311 | 4a89c54a | Iustin Pop | if config_errors:
|
1312 | d2231b8c | Iustin Pop | errmsg = ("Configuration data is not consistent: %s" %
|
1313 | 1f864b60 | Iustin Pop | (utils.CommaJoin(config_errors))) |
1314 | d2231b8c | Iustin Pop | logging.critical(errmsg) |
1315 | d2231b8c | Iustin Pop | if feedback_fn:
|
1316 | d2231b8c | Iustin Pop | feedback_fn(errmsg) |
1317 | d2231b8c | Iustin Pop | |
1318 | a8083063 | Iustin Pop | if destination is None: |
1319 | a8083063 | Iustin Pop | destination = self._cfg_file
|
1320 | a8083063 | Iustin Pop | self._BumpSerialNo()
|
1321 | 8d14b30d | Iustin Pop | txt = serializer.Dump(self._config_data.ToDict())
|
1322 | 13998ef2 | Michael Hanselmann | |
1323 | 13998ef2 | Michael Hanselmann | utils.WriteFile(destination, data=txt) |
1324 | 13998ef2 | Michael Hanselmann | |
1325 | 14e15659 | Iustin Pop | self.write_count += 1 |
1326 | 3d3a04bc | Iustin Pop | |
1327 | f56618e0 | Iustin Pop | # and redistribute the config file to master candidates
|
1328 | a4eae71f | Michael Hanselmann | self._DistributeConfig(feedback_fn)
|
1329 | a8083063 | Iustin Pop | |
1330 | 54d1a06e | Michael Hanselmann | # Write ssconf files on all nodes (including locally)
|
1331 | 0779e3aa | Iustin Pop | if self._last_cluster_serial < self._config_data.cluster.serial_no: |
1332 | d9a855f1 | Michael Hanselmann | if not self._offline: |
1333 | cd34faf2 | Michael Hanselmann | result = rpc.RpcRunner.call_write_ssconf_files( |
1334 | 6819dc49 | Iustin Pop | self._UnlockedGetOnlineNodeList(),
|
1335 | e1e75d00 | Iustin Pop | self._UnlockedGetSsconfValues())
|
1336 | a4eae71f | Michael Hanselmann | |
1337 | e1e75d00 | Iustin Pop | for nname, nresu in result.items(): |
1338 | 3cebe102 | Michael Hanselmann | msg = nresu.fail_msg |
1339 | e1e75d00 | Iustin Pop | if msg:
|
1340 | a4eae71f | Michael Hanselmann | errmsg = ("Error while uploading ssconf files to"
|
1341 | a4eae71f | Michael Hanselmann | " node %s: %s" % (nname, msg))
|
1342 | a4eae71f | Michael Hanselmann | logging.warning(errmsg) |
1343 | a4eae71f | Michael Hanselmann | |
1344 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1345 | a4eae71f | Michael Hanselmann | feedback_fn(errmsg) |
1346 | a4eae71f | Michael Hanselmann | |
1347 | 0779e3aa | Iustin Pop | self._last_cluster_serial = self._config_data.cluster.serial_no |
1348 | 54d1a06e | Michael Hanselmann | |
1349 | 03d1dba2 | Michael Hanselmann | def _UnlockedGetSsconfValues(self): |
1350 | 054596f0 | Iustin Pop | """Return the values needed by ssconf.
|
1351 | 054596f0 | Iustin Pop |
|
1352 | 054596f0 | Iustin Pop | @rtype: dict
|
1353 | 054596f0 | Iustin Pop | @return: a dictionary with keys the ssconf names and values their
|
1354 | 054596f0 | Iustin Pop | associated value
|
1355 | 054596f0 | Iustin Pop |
|
1356 | 054596f0 | Iustin Pop | """
|
1357 | a3316e4a | Iustin Pop | fn = "\n".join
|
1358 | 81a49123 | Iustin Pop | instance_names = utils.NiceSort(self._UnlockedGetInstanceList())
|
1359 | a3316e4a | Iustin Pop | node_names = utils.NiceSort(self._UnlockedGetNodeList())
|
1360 | a3316e4a | Iustin Pop | node_info = [self._UnlockedGetNodeInfo(name) for name in node_names] |
1361 | c3029d0a | Luca Bigliardi | node_pri_ips = ["%s %s" % (ninfo.name, ninfo.primary_ip)
|
1362 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1363 | c3029d0a | Luca Bigliardi | node_snd_ips = ["%s %s" % (ninfo.name, ninfo.secondary_ip)
|
1364 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1365 | a3316e4a | Iustin Pop | |
1366 | 81a49123 | Iustin Pop | instance_data = fn(instance_names) |
1367 | a3316e4a | Iustin Pop | off_data = fn(node.name for node in node_info if node.offline) |
1368 | 81a49123 | Iustin Pop | on_data = fn(node.name for node in node_info if not node.offline) |
1369 | a3316e4a | Iustin Pop | mc_data = fn(node.name for node in node_info if node.master_candidate) |
1370 | 8113a52e | Luca Bigliardi | mc_ips_data = fn(node.primary_ip for node in node_info |
1371 | 8113a52e | Luca Bigliardi | if node.master_candidate)
|
1372 | a3316e4a | Iustin Pop | node_data = fn(node_names) |
1373 | f9780ccd | Luca Bigliardi | node_pri_ips_data = fn(node_pri_ips) |
1374 | f9780ccd | Luca Bigliardi | node_snd_ips_data = fn(node_snd_ips) |
1375 | f56618e0 | Iustin Pop | |
1376 | 054596f0 | Iustin Pop | cluster = self._config_data.cluster
|
1377 | 5d60b3bd | Iustin Pop | cluster_tags = fn(cluster.GetTags()) |
1378 | 4f7a6a10 | Iustin Pop | |
1379 | 4f7a6a10 | Iustin Pop | hypervisor_list = fn(cluster.enabled_hypervisors) |
1380 | 4f7a6a10 | Iustin Pop | |
1381 | 0fbae49a | Balazs Lecz | uid_pool = uidpool.FormatUidPool(cluster.uid_pool, separator="\n")
|
1382 | 0fbae49a | Balazs Lecz | |
1383 | 03d1dba2 | Michael Hanselmann | return {
|
1384 | 054596f0 | Iustin Pop | constants.SS_CLUSTER_NAME: cluster.cluster_name, |
1385 | 5d60b3bd | Iustin Pop | constants.SS_CLUSTER_TAGS: cluster_tags, |
1386 | 054596f0 | Iustin Pop | constants.SS_FILE_STORAGE_DIR: cluster.file_storage_dir, |
1387 | a3316e4a | Iustin Pop | constants.SS_MASTER_CANDIDATES: mc_data, |
1388 | 8113a52e | Luca Bigliardi | constants.SS_MASTER_CANDIDATES_IPS: mc_ips_data, |
1389 | 054596f0 | Iustin Pop | constants.SS_MASTER_IP: cluster.master_ip, |
1390 | 054596f0 | Iustin Pop | constants.SS_MASTER_NETDEV: cluster.master_netdev, |
1391 | 054596f0 | Iustin Pop | constants.SS_MASTER_NODE: cluster.master_node, |
1392 | a3316e4a | Iustin Pop | constants.SS_NODE_LIST: node_data, |
1393 | f9780ccd | Luca Bigliardi | constants.SS_NODE_PRIMARY_IPS: node_pri_ips_data, |
1394 | f9780ccd | Luca Bigliardi | constants.SS_NODE_SECONDARY_IPS: node_snd_ips_data, |
1395 | a3316e4a | Iustin Pop | constants.SS_OFFLINE_NODES: off_data, |
1396 | 81a49123 | Iustin Pop | constants.SS_ONLINE_NODES: on_data, |
1397 | 81a49123 | Iustin Pop | constants.SS_INSTANCE_LIST: instance_data, |
1398 | 8a113c7a | Iustin Pop | constants.SS_RELEASE_VERSION: constants.RELEASE_VERSION, |
1399 | 4f7a6a10 | Iustin Pop | constants.SS_HYPERVISOR_LIST: hypervisor_list, |
1400 | 5c465a95 | Iustin Pop | constants.SS_MAINTAIN_NODE_HEALTH: str(cluster.maintain_node_health),
|
1401 | 0fbae49a | Balazs Lecz | constants.SS_UID_POOL: uid_pool, |
1402 | 03d1dba2 | Michael Hanselmann | } |
1403 | 03d1dba2 | Michael Hanselmann | |
1404 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1405 | a8083063 | Iustin Pop | def GetVGName(self): |
1406 | a8083063 | Iustin Pop | """Return the volume group name.
|
1407 | a8083063 | Iustin Pop |
|
1408 | a8083063 | Iustin Pop | """
|
1409 | a8083063 | Iustin Pop | return self._config_data.cluster.volume_group_name |
1410 | a8083063 | Iustin Pop | |
1411 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1412 | 89ff8e15 | Manuel Franceschini | def SetVGName(self, vg_name): |
1413 | 89ff8e15 | Manuel Franceschini | """Set the volume group name.
|
1414 | 89ff8e15 | Manuel Franceschini |
|
1415 | 89ff8e15 | Manuel Franceschini | """
|
1416 | 2d4011cd | Manuel Franceschini | self._config_data.cluster.volume_group_name = vg_name
|
1417 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1418 | 89ff8e15 | Manuel Franceschini | self._WriteConfig()
|
1419 | 89ff8e15 | Manuel Franceschini | |
1420 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1421 | a8083063 | Iustin Pop | def GetMACPrefix(self): |
1422 | a8083063 | Iustin Pop | """Return the mac prefix.
|
1423 | a8083063 | Iustin Pop |
|
1424 | a8083063 | Iustin Pop | """
|
1425 | a8083063 | Iustin Pop | return self._config_data.cluster.mac_prefix |
1426 | 62779dd0 | Iustin Pop | |
1427 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1428 | 62779dd0 | Iustin Pop | def GetClusterInfo(self): |
1429 | 5bbd3f7f | Michael Hanselmann | """Returns information about the cluster
|
1430 | 62779dd0 | Iustin Pop |
|
1431 | c41eea6e | Iustin Pop | @rtype: L{objects.Cluster}
|
1432 | c41eea6e | Iustin Pop | @return: the cluster object
|
1433 | 62779dd0 | Iustin Pop |
|
1434 | 62779dd0 | Iustin Pop | """
|
1435 | 62779dd0 | Iustin Pop | return self._config_data.cluster |
1436 | e00fb268 | Iustin Pop | |
1437 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1438 | a4eae71f | Michael Hanselmann | def Update(self, target, feedback_fn): |
1439 | e00fb268 | Iustin Pop | """Notify function to be called after updates.
|
1440 | e00fb268 | Iustin Pop |
|
1441 | e00fb268 | Iustin Pop | This function must be called when an object (as returned by
|
1442 | e00fb268 | Iustin Pop | GetInstanceInfo, GetNodeInfo, GetCluster) has been updated and the
|
1443 | e00fb268 | Iustin Pop | caller wants the modifications saved to the backing store. Note
|
1444 | e00fb268 | Iustin Pop | that all modified objects will be saved, but the target argument
|
1445 | e00fb268 | Iustin Pop | is the one the caller wants to ensure that it's saved.
|
1446 | e00fb268 | Iustin Pop |
|
1447 | c41eea6e | Iustin Pop | @param target: an instance of either L{objects.Cluster},
|
1448 | c41eea6e | Iustin Pop | L{objects.Node} or L{objects.Instance} which is existing in
|
1449 | c41eea6e | Iustin Pop | the cluster
|
1450 | a4eae71f | Michael Hanselmann | @param feedback_fn: Callable feedback function
|
1451 | c41eea6e | Iustin Pop |
|
1452 | e00fb268 | Iustin Pop | """
|
1453 | e00fb268 | Iustin Pop | if self._config_data is None: |
1454 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Configuration file not read," |
1455 | 3ecf6786 | Iustin Pop | " cannot save.")
|
1456 | f34901f8 | Iustin Pop | update_serial = False
|
1457 | e00fb268 | Iustin Pop | if isinstance(target, objects.Cluster): |
1458 | e00fb268 | Iustin Pop | test = target == self._config_data.cluster
|
1459 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Node): |
1460 | e00fb268 | Iustin Pop | test = target in self._config_data.nodes.values() |
1461 | f34901f8 | Iustin Pop | update_serial = True
|
1462 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Instance): |
1463 | e00fb268 | Iustin Pop | test = target in self._config_data.instances.values() |
1464 | e00fb268 | Iustin Pop | else:
|
1465 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid object type (%s) passed to" |
1466 | 3ecf6786 | Iustin Pop | " ConfigWriter.Update" % type(target)) |
1467 | e00fb268 | Iustin Pop | if not test: |
1468 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Configuration updated since object" |
1469 | 3ecf6786 | Iustin Pop | " has been read or unknown object")
|
1470 | f34901f8 | Iustin Pop | target.serial_no += 1
|
1471 | d693c864 | Iustin Pop | target.mtime = now = time.time() |
1472 | f34901f8 | Iustin Pop | |
1473 | cff4c037 | Iustin Pop | if update_serial:
|
1474 | f34901f8 | Iustin Pop | # for node updates, we need to increase the cluster serial too
|
1475 | f34901f8 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1476 | d693c864 | Iustin Pop | self._config_data.cluster.mtime = now
|
1477 | b989e85d | Iustin Pop | |
1478 | 61cf6b5e | Iustin Pop | if isinstance(target, objects.Instance): |
1479 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(target.name)
|
1480 | 61cf6b5e | Iustin Pop | |
1481 | a4eae71f | Michael Hanselmann | self._WriteConfig(feedback_fn=feedback_fn)
|
1482 | 73064714 | Guido Trotter | |
1483 | 73064714 | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1484 | 73064714 | Guido Trotter | def DropECReservations(self, ec_id): |
1485 | 73064714 | Guido Trotter | """Drop per-execution-context reservations
|
1486 | 73064714 | Guido Trotter |
|
1487 | 73064714 | Guido Trotter | """
|
1488 | d8aee57e | Iustin Pop | for rm in self._all_rms: |
1489 | d8aee57e | Iustin Pop | rm.DropECReservations(ec_id) |