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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | 7f93570a | Iustin Pop | # Copyright (C) 2006, 2007, 2008, 2009, 2010 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | 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 | a744b676 | Manuel Franceschini | from ganeti import netutils |
48 | 243cdbcc | Michael Hanselmann | |
49 | 243cdbcc | Michael Hanselmann | |
50 | 7f93570a | Iustin Pop | _config_lock = locking.SharedLock("ConfigWriter")
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51 | f78ede4e | Guido Trotter | |
52 | 4fae38c5 | Guido Trotter | # job id used for resource management at config upgrade time
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53 | 8d9c3bef | Michael Hanselmann | _UPGRADE_CONFIG_JID = "jid-cfg-upgrade"
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54 | 4fae38c5 | Guido Trotter | |
55 | f78ede4e | Guido Trotter | |
56 | 5b263ed7 | Michael Hanselmann | def _ValidateConfig(data): |
57 | c41eea6e | Iustin Pop | """Verifies that a configuration objects looks valid.
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58 | c41eea6e | Iustin Pop |
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59 | c41eea6e | Iustin Pop | This only verifies the version of the configuration.
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60 | c41eea6e | Iustin Pop |
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61 | c41eea6e | Iustin Pop | @raise errors.ConfigurationError: if the version differs from what
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62 | c41eea6e | Iustin Pop | we expect
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63 | c41eea6e | Iustin Pop |
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64 | c41eea6e | Iustin Pop | """
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65 | 5b263ed7 | Michael Hanselmann | if data.version != constants.CONFIG_VERSION:
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66 | 243cdbcc | Michael Hanselmann | raise errors.ConfigurationError("Cluster configuration version" |
67 | 243cdbcc | Michael Hanselmann | " mismatch, got %s instead of %s" %
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68 | 5b263ed7 | Michael Hanselmann | (data.version, |
69 | 243cdbcc | Michael Hanselmann | constants.CONFIG_VERSION)) |
70 | a8083063 | Iustin Pop | |
71 | 319856a9 | Michael Hanselmann | |
72 | 013da361 | Guido Trotter | class TemporaryReservationManager: |
73 | 013da361 | Guido Trotter | """A temporary resource reservation manager.
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74 | 013da361 | Guido Trotter |
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75 | 013da361 | Guido Trotter | This is used to reserve resources in a job, before using them, making sure
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76 | 013da361 | Guido Trotter | other jobs cannot get them in the meantime.
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77 | 013da361 | Guido Trotter |
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78 | 013da361 | Guido Trotter | """
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79 | 013da361 | Guido Trotter | def __init__(self): |
80 | 013da361 | Guido Trotter | self._ec_reserved = {}
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81 | 013da361 | Guido Trotter | |
82 | 013da361 | Guido Trotter | def Reserved(self, resource): |
83 | 013da361 | Guido Trotter | for holder_reserved in self._ec_reserved.items(): |
84 | 013da361 | Guido Trotter | if resource in holder_reserved: |
85 | 013da361 | Guido Trotter | return True |
86 | 013da361 | Guido Trotter | return False |
87 | 013da361 | Guido Trotter | |
88 | 013da361 | Guido Trotter | def Reserve(self, ec_id, resource): |
89 | 013da361 | Guido Trotter | if self.Reserved(resource): |
90 | 013da361 | Guido Trotter | raise errors.ReservationError("Duplicate reservation for resource: %s." % |
91 | 013da361 | Guido Trotter | (resource)) |
92 | 013da361 | Guido Trotter | if ec_id not in self._ec_reserved: |
93 | 013da361 | Guido Trotter | self._ec_reserved[ec_id] = set([resource]) |
94 | 013da361 | Guido Trotter | else:
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95 | 013da361 | Guido Trotter | self._ec_reserved[ec_id].add(resource)
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96 | 013da361 | Guido Trotter | |
97 | 013da361 | Guido Trotter | def DropECReservations(self, ec_id): |
98 | 013da361 | Guido Trotter | if ec_id in self._ec_reserved: |
99 | 013da361 | Guido Trotter | del self._ec_reserved[ec_id] |
100 | 013da361 | Guido Trotter | |
101 | 013da361 | Guido Trotter | def GetReserved(self): |
102 | 013da361 | Guido Trotter | all_reserved = set()
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103 | 013da361 | Guido Trotter | for holder_reserved in self._ec_reserved.values(): |
104 | 013da361 | Guido Trotter | all_reserved.update(holder_reserved) |
105 | 013da361 | Guido Trotter | return all_reserved
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106 | 013da361 | Guido Trotter | |
107 | 013da361 | Guido Trotter | def Generate(self, existing, generate_one_fn, ec_id): |
108 | 013da361 | Guido Trotter | """Generate a new resource of this type
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109 | 013da361 | Guido Trotter |
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110 | 013da361 | Guido Trotter | """
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111 | 013da361 | Guido Trotter | assert callable(generate_one_fn) |
112 | 013da361 | Guido Trotter | |
113 | 013da361 | Guido Trotter | all_elems = self.GetReserved()
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114 | 013da361 | Guido Trotter | all_elems.update(existing) |
115 | 013da361 | Guido Trotter | retries = 64
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116 | 013da361 | Guido Trotter | while retries > 0: |
117 | 013da361 | Guido Trotter | new_resource = generate_one_fn() |
118 | 013da361 | Guido Trotter | if new_resource is not None and new_resource not in all_elems: |
119 | 013da361 | Guido Trotter | break
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120 | 013da361 | Guido Trotter | else:
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121 | 013da361 | Guido Trotter | raise errors.ConfigurationError("Not able generate new resource" |
122 | 013da361 | Guido Trotter | " (last tried: %s)" % new_resource)
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123 | 013da361 | Guido Trotter | self.Reserve(ec_id, new_resource)
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124 | 013da361 | Guido Trotter | return new_resource
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125 | 013da361 | Guido Trotter | |
126 | 013da361 | Guido Trotter | |
127 | a8083063 | Iustin Pop | class ConfigWriter: |
128 | 098c0958 | Michael Hanselmann | """The interface to the cluster configuration.
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129 | a8083063 | Iustin Pop |
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130 | d8aee57e | Iustin Pop | @ivar _temporary_lvs: reservation manager for temporary LVs
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131 | d8aee57e | Iustin Pop | @ivar _all_rms: a list of all temporary reservation managers
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132 | d8aee57e | Iustin Pop |
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133 | 098c0958 | Michael Hanselmann | """
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134 | a8083063 | Iustin Pop | def __init__(self, cfg_file=None, offline=False): |
135 | 14e15659 | Iustin Pop | self.write_count = 0 |
136 | f78ede4e | Guido Trotter | self._lock = _config_lock
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137 | a8083063 | Iustin Pop | self._config_data = None |
138 | a8083063 | Iustin Pop | self._offline = offline
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139 | a8083063 | Iustin Pop | if cfg_file is None: |
140 | a8083063 | Iustin Pop | self._cfg_file = constants.CLUSTER_CONF_FILE
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141 | a8083063 | Iustin Pop | else:
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142 | a8083063 | Iustin Pop | self._cfg_file = cfg_file
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143 | 4fae38c5 | Guido Trotter | self._temporary_ids = TemporaryReservationManager()
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144 | a81c53c9 | Iustin Pop | self._temporary_drbds = {}
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145 | 36b66e6e | Guido Trotter | self._temporary_macs = TemporaryReservationManager()
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146 | afa1386e | Guido Trotter | self._temporary_secrets = TemporaryReservationManager()
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147 | d8aee57e | Iustin Pop | self._temporary_lvs = TemporaryReservationManager()
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148 | d8aee57e | Iustin Pop | self._all_rms = [self._temporary_ids, self._temporary_macs, |
149 | d8aee57e | Iustin Pop | self._temporary_secrets, self._temporary_lvs] |
150 | 89e1fc26 | Iustin Pop | # Note: in order to prevent errors when resolving our name in
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151 | 89e1fc26 | Iustin Pop | # _DistributeConfig, we compute it here once and reuse it; it's
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152 | 89e1fc26 | Iustin Pop | # better to raise an error before starting to modify the config
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153 | 89e1fc26 | Iustin Pop | # file than after it was modified
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154 | a744b676 | Manuel Franceschini | self._my_hostname = netutils.HostInfo().name
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155 | 3c7f6c44 | Iustin Pop | self._last_cluster_serial = -1 |
156 | 3d3a04bc | Iustin Pop | self._OpenConfig()
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157 | a8083063 | Iustin Pop | |
158 | a8083063 | Iustin Pop | # this method needs to be static, so that we can call it on the class
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159 | a8083063 | Iustin Pop | @staticmethod
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160 | a8083063 | Iustin Pop | def IsCluster(): |
161 | a8083063 | Iustin Pop | """Check if the cluster is configured.
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162 | a8083063 | Iustin Pop |
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163 | a8083063 | Iustin Pop | """
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164 | a8083063 | Iustin Pop | return os.path.exists(constants.CLUSTER_CONF_FILE)
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165 | a8083063 | Iustin Pop | |
166 | 36b66e6e | Guido Trotter | def _GenerateOneMAC(self): |
167 | 36b66e6e | Guido Trotter | """Generate one mac address
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168 | 36b66e6e | Guido Trotter |
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169 | 36b66e6e | Guido Trotter | """
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170 | 36b66e6e | Guido Trotter | prefix = self._config_data.cluster.mac_prefix
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171 | 36b66e6e | Guido Trotter | byte1 = random.randrange(0, 256) |
172 | 36b66e6e | Guido Trotter | byte2 = random.randrange(0, 256) |
173 | 36b66e6e | Guido Trotter | byte3 = random.randrange(0, 256) |
174 | 36b66e6e | Guido Trotter | mac = "%s:%02x:%02x:%02x" % (prefix, byte1, byte2, byte3)
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175 | 36b66e6e | Guido Trotter | return mac
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176 | 36b66e6e | Guido Trotter | |
177 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
178 | 36b66e6e | Guido Trotter | def GenerateMAC(self, ec_id): |
179 | a8083063 | Iustin Pop | """Generate a MAC for an instance.
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180 | a8083063 | Iustin Pop |
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181 | a8083063 | Iustin Pop | This should check the current instances for duplicates.
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182 | a8083063 | Iustin Pop |
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183 | a8083063 | Iustin Pop | """
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184 | 36b66e6e | Guido Trotter | existing = self._AllMACs()
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185 | 36b66e6e | Guido Trotter | return self._temporary_ids.Generate(existing, self._GenerateOneMAC, ec_id) |
186 | a8083063 | Iustin Pop | |
187 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
188 | 36b66e6e | Guido Trotter | def ReserveMAC(self, mac, ec_id): |
189 | 36b66e6e | Guido Trotter | """Reserve a MAC for an instance.
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190 | 1862d460 | Alexander Schreiber |
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191 | 1862d460 | Alexander Schreiber | This only checks instances managed by this cluster, it does not
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192 | 1862d460 | Alexander Schreiber | check for potential collisions elsewhere.
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193 | 1862d460 | Alexander Schreiber |
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194 | 1862d460 | Alexander Schreiber | """
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195 | 1862d460 | Alexander Schreiber | all_macs = self._AllMACs()
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196 | 36b66e6e | Guido Trotter | if mac in all_macs: |
197 | 36b66e6e | Guido Trotter | raise errors.ReservationError("mac already in use") |
198 | 36b66e6e | Guido Trotter | else:
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199 | 36b66e6e | Guido Trotter | self._temporary_macs.Reserve(mac, ec_id)
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200 | 1862d460 | Alexander Schreiber | |
201 | f9518d38 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
202 | d8aee57e | Iustin Pop | def ReserveLV(self, lv_name, ec_id): |
203 | d8aee57e | Iustin Pop | """Reserve an VG/LV pair for an instance.
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204 | d8aee57e | Iustin Pop |
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205 | d8aee57e | Iustin Pop | @type lv_name: string
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206 | d8aee57e | Iustin Pop | @param lv_name: the logical volume name to reserve
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207 | d8aee57e | Iustin Pop |
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208 | d8aee57e | Iustin Pop | """
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209 | d8aee57e | Iustin Pop | all_lvs = self._AllLVs()
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210 | d8aee57e | Iustin Pop | if lv_name in all_lvs: |
211 | d8aee57e | Iustin Pop | raise errors.ReservationError("LV already in use") |
212 | d8aee57e | Iustin Pop | else:
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213 | d8aee57e | Iustin Pop | self._temporary_lvs.Reserve(lv_name, ec_id)
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214 | d8aee57e | Iustin Pop | |
215 | d8aee57e | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
216 | afa1386e | Guido Trotter | def GenerateDRBDSecret(self, ec_id): |
217 | f9518d38 | Iustin Pop | """Generate a DRBD secret.
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218 | f9518d38 | Iustin Pop |
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219 | f9518d38 | Iustin Pop | This checks the current disks for duplicates.
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220 | f9518d38 | Iustin Pop |
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221 | f9518d38 | Iustin Pop | """
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222 | afa1386e | Guido Trotter | return self._temporary_secrets.Generate(self._AllDRBDSecrets(), |
223 | afa1386e | Guido Trotter | utils.GenerateSecret, |
224 | afa1386e | Guido Trotter | ec_id) |
225 | 8d9c3bef | Michael Hanselmann | |
226 | 34e54ebc | Iustin Pop | def _AllLVs(self): |
227 | 923b1523 | Iustin Pop | """Compute the list of all LVs.
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228 | 923b1523 | Iustin Pop |
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229 | 923b1523 | Iustin Pop | """
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230 | 923b1523 | Iustin Pop | lvnames = set()
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231 | 923b1523 | Iustin Pop | for instance in self._config_data.instances.values(): |
232 | 923b1523 | Iustin Pop | node_data = instance.MapLVsByNode() |
233 | 923b1523 | Iustin Pop | for lv_list in node_data.values(): |
234 | 923b1523 | Iustin Pop | lvnames.update(lv_list) |
235 | 923b1523 | Iustin Pop | return lvnames
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236 | 923b1523 | Iustin Pop | |
237 | 34e54ebc | Iustin Pop | def _AllIDs(self, include_temporary): |
238 | 34e54ebc | Iustin Pop | """Compute the list of all UUIDs and names we have.
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239 | 34e54ebc | Iustin Pop |
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240 | 34e54ebc | Iustin Pop | @type include_temporary: boolean
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241 | 34e54ebc | Iustin Pop | @param include_temporary: whether to include the _temporary_ids set
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242 | 34e54ebc | Iustin Pop | @rtype: set
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243 | 34e54ebc | Iustin Pop | @return: a set of IDs
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244 | 34e54ebc | Iustin Pop |
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245 | 34e54ebc | Iustin Pop | """
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246 | 34e54ebc | Iustin Pop | existing = set()
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247 | 34e54ebc | Iustin Pop | if include_temporary:
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248 | 4fae38c5 | Guido Trotter | existing.update(self._temporary_ids.GetReserved())
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249 | 34e54ebc | Iustin Pop | existing.update(self._AllLVs())
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250 | 34e54ebc | Iustin Pop | existing.update(self._config_data.instances.keys())
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251 | 34e54ebc | Iustin Pop | existing.update(self._config_data.nodes.keys())
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252 | 76d5d3a3 | Iustin Pop | existing.update([i.uuid for i in self._AllUUIDObjects() if i.uuid]) |
253 | 34e54ebc | Iustin Pop | return existing
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254 | 34e54ebc | Iustin Pop | |
255 | 4fae38c5 | Guido Trotter | def _GenerateUniqueID(self, ec_id): |
256 | 430b923c | Iustin Pop | """Generate an unique UUID.
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257 | 923b1523 | Iustin Pop |
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258 | 923b1523 | Iustin Pop | This checks the current node, instances and disk names for
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259 | 923b1523 | Iustin Pop | duplicates.
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260 | 923b1523 | Iustin Pop |
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261 | c41eea6e | Iustin Pop | @rtype: string
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262 | c41eea6e | Iustin Pop | @return: the unique id
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263 | 923b1523 | Iustin Pop |
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264 | 923b1523 | Iustin Pop | """
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265 | 4fae38c5 | Guido Trotter | existing = self._AllIDs(include_temporary=False) |
266 | 4fae38c5 | Guido Trotter | return self._temporary_ids.Generate(existing, utils.NewUUID, ec_id) |
267 | 923b1523 | Iustin Pop | |
268 | 430b923c | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
269 | 4fae38c5 | Guido Trotter | def GenerateUniqueID(self, ec_id): |
270 | 430b923c | Iustin Pop | """Generate an unique ID.
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271 | 430b923c | Iustin Pop |
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272 | 430b923c | Iustin Pop | This is just a wrapper over the unlocked version.
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273 | 430b923c | Iustin Pop |
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274 | 4fae38c5 | Guido Trotter | @type ec_id: string
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275 | 4fae38c5 | Guido Trotter | @param ec_id: unique id for the job to reserve the id to
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276 | 34d657ba | Iustin Pop |
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277 | 34d657ba | Iustin Pop | """
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278 | 4fae38c5 | Guido Trotter | return self._GenerateUniqueID(ec_id) |
279 | 34d657ba | Iustin Pop | |
280 | a8083063 | Iustin Pop | def _AllMACs(self): |
281 | a8083063 | Iustin Pop | """Return all MACs present in the config.
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282 | a8083063 | Iustin Pop |
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283 | c41eea6e | Iustin Pop | @rtype: list
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284 | c41eea6e | Iustin Pop | @return: the list of all MACs
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285 | c41eea6e | Iustin Pop |
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286 | a8083063 | Iustin Pop | """
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287 | a8083063 | Iustin Pop | result = [] |
288 | a8083063 | Iustin Pop | for instance in self._config_data.instances.values(): |
289 | a8083063 | Iustin Pop | for nic in instance.nics: |
290 | a8083063 | Iustin Pop | result.append(nic.mac) |
291 | a8083063 | Iustin Pop | |
292 | a8083063 | Iustin Pop | return result
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293 | a8083063 | Iustin Pop | |
294 | f9518d38 | Iustin Pop | def _AllDRBDSecrets(self): |
295 | f9518d38 | Iustin Pop | """Return all DRBD secrets present in the config.
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296 | f9518d38 | Iustin Pop |
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297 | c41eea6e | Iustin Pop | @rtype: list
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298 | c41eea6e | Iustin Pop | @return: the list of all DRBD secrets
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299 | c41eea6e | Iustin Pop |
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300 | f9518d38 | Iustin Pop | """
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301 | f9518d38 | Iustin Pop | def helper(disk, result): |
302 | f9518d38 | Iustin Pop | """Recursively gather secrets from this disk."""
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303 | f9518d38 | Iustin Pop | if disk.dev_type == constants.DT_DRBD8:
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304 | f9518d38 | Iustin Pop | result.append(disk.logical_id[5])
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305 | f9518d38 | Iustin Pop | if disk.children:
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306 | f9518d38 | Iustin Pop | for child in disk.children: |
307 | f9518d38 | Iustin Pop | helper(child, result) |
308 | f9518d38 | Iustin Pop | |
309 | f9518d38 | Iustin Pop | result = [] |
310 | f9518d38 | Iustin Pop | for instance in self._config_data.instances.values(): |
311 | f9518d38 | Iustin Pop | for disk in instance.disks: |
312 | f9518d38 | Iustin Pop | helper(disk, result) |
313 | f9518d38 | Iustin Pop | |
314 | f9518d38 | Iustin Pop | return result
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315 | f9518d38 | Iustin Pop | |
316 | 4b98ac29 | Iustin Pop | def _CheckDiskIDs(self, disk, l_ids, p_ids): |
317 | 4b98ac29 | Iustin Pop | """Compute duplicate disk IDs
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318 | 4b98ac29 | Iustin Pop |
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319 | 4b98ac29 | Iustin Pop | @type disk: L{objects.Disk}
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320 | 4b98ac29 | Iustin Pop | @param disk: the disk at which to start searching
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321 | 4b98ac29 | Iustin Pop | @type l_ids: list
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322 | 4b98ac29 | Iustin Pop | @param l_ids: list of current logical ids
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323 | 4b98ac29 | Iustin Pop | @type p_ids: list
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324 | 4b98ac29 | Iustin Pop | @param p_ids: list of current physical ids
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325 | 4b98ac29 | Iustin Pop | @rtype: list
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326 | 4b98ac29 | Iustin Pop | @return: a list of error messages
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327 | 4b98ac29 | Iustin Pop |
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328 | 4b98ac29 | Iustin Pop | """
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329 | 4b98ac29 | Iustin Pop | result = [] |
330 | 25ae22e4 | Iustin Pop | if disk.logical_id is not None: |
331 | 25ae22e4 | Iustin Pop | if disk.logical_id in l_ids: |
332 | 25ae22e4 | Iustin Pop | result.append("duplicate logical id %s" % str(disk.logical_id)) |
333 | 25ae22e4 | Iustin Pop | else:
|
334 | 25ae22e4 | Iustin Pop | l_ids.append(disk.logical_id) |
335 | 25ae22e4 | Iustin Pop | if disk.physical_id is not None: |
336 | 25ae22e4 | Iustin Pop | if disk.physical_id in p_ids: |
337 | 25ae22e4 | Iustin Pop | result.append("duplicate physical id %s" % str(disk.physical_id)) |
338 | 25ae22e4 | Iustin Pop | else:
|
339 | 25ae22e4 | Iustin Pop | p_ids.append(disk.physical_id) |
340 | 4b98ac29 | Iustin Pop | |
341 | 4b98ac29 | Iustin Pop | if disk.children:
|
342 | 4b98ac29 | Iustin Pop | for child in disk.children: |
343 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(child, l_ids, p_ids))
|
344 | 4b98ac29 | Iustin Pop | return result
|
345 | 4b98ac29 | Iustin Pop | |
346 | 4a89c54a | Iustin Pop | def _UnlockedVerifyConfig(self): |
347 | a8efbb40 | Iustin Pop | """Verify function.
|
348 | a8efbb40 | Iustin Pop |
|
349 | 4a89c54a | Iustin Pop | @rtype: list
|
350 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
351 | 4a89c54a | Iustin Pop | configuration errors
|
352 | 4a89c54a | Iustin Pop |
|
353 | a8083063 | Iustin Pop | """
|
354 | a8083063 | Iustin Pop | result = [] |
355 | a8083063 | Iustin Pop | seen_macs = [] |
356 | 48ce9fd9 | Iustin Pop | ports = {} |
357 | a8083063 | Iustin Pop | data = self._config_data
|
358 | 4b98ac29 | Iustin Pop | seen_lids = [] |
359 | 4b98ac29 | Iustin Pop | seen_pids = [] |
360 | 9a5fba23 | Guido Trotter | |
361 | 9a5fba23 | Guido Trotter | # global cluster checks
|
362 | 9a5fba23 | Guido Trotter | if not data.cluster.enabled_hypervisors: |
363 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors list doesn't have any entries")
|
364 | 9a5fba23 | Guido Trotter | invalid_hvs = set(data.cluster.enabled_hypervisors) - constants.HYPER_TYPES
|
365 | 9a5fba23 | Guido Trotter | if invalid_hvs:
|
366 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors contains invalid entries: %s" %
|
367 | 9a5fba23 | Guido Trotter | invalid_hvs) |
368 | 9f3ac970 | Iustin Pop | missing_hvp = (set(data.cluster.enabled_hypervisors) -
|
369 | 9f3ac970 | Iustin Pop | set(data.cluster.hvparams.keys()))
|
370 | 9f3ac970 | Iustin Pop | if missing_hvp:
|
371 | 9f3ac970 | Iustin Pop | result.append("hypervisor parameters missing for the enabled"
|
372 | 9f3ac970 | Iustin Pop | " hypervisor(s) %s" % utils.CommaJoin(missing_hvp))
|
373 | 9a5fba23 | Guido Trotter | |
374 | 9a5fba23 | Guido Trotter | if data.cluster.master_node not in data.nodes: |
375 | 9a5fba23 | Guido Trotter | result.append("cluster has invalid primary node '%s'" %
|
376 | 9a5fba23 | Guido Trotter | data.cluster.master_node) |
377 | 9a5fba23 | Guido Trotter | |
378 | 9a5fba23 | Guido Trotter | # per-instance checks
|
379 | a8083063 | Iustin Pop | for instance_name in data.instances: |
380 | a8083063 | Iustin Pop | instance = data.instances[instance_name] |
381 | 81196341 | Iustin Pop | if instance.name != instance_name:
|
382 | 81196341 | Iustin Pop | result.append("instance '%s' is indexed by wrong name '%s'" %
|
383 | 81196341 | Iustin Pop | (instance.name, instance_name)) |
384 | a8083063 | Iustin Pop | if instance.primary_node not in data.nodes: |
385 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid primary node '%s'" %
|
386 | a8083063 | Iustin Pop | (instance_name, instance.primary_node)) |
387 | a8083063 | Iustin Pop | for snode in instance.secondary_nodes: |
388 | a8083063 | Iustin Pop | if snode not in data.nodes: |
389 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid secondary node '%s'" %
|
390 | a8083063 | Iustin Pop | (instance_name, snode)) |
391 | a8083063 | Iustin Pop | for idx, nic in enumerate(instance.nics): |
392 | a8083063 | Iustin Pop | if nic.mac in seen_macs: |
393 | 8522ceeb | Iustin Pop | result.append("instance '%s' has NIC %d mac %s duplicate" %
|
394 | a8083063 | Iustin Pop | (instance_name, idx, nic.mac)) |
395 | a8083063 | Iustin Pop | else:
|
396 | a8083063 | Iustin Pop | seen_macs.append(nic.mac) |
397 | 48ce9fd9 | Iustin Pop | |
398 | 48ce9fd9 | Iustin Pop | # gather the drbd ports for duplicate checks
|
399 | 48ce9fd9 | Iustin Pop | for dsk in instance.disks: |
400 | 48ce9fd9 | Iustin Pop | if dsk.dev_type in constants.LDS_DRBD: |
401 | 48ce9fd9 | Iustin Pop | tcp_port = dsk.logical_id[2]
|
402 | 48ce9fd9 | Iustin Pop | if tcp_port not in ports: |
403 | 48ce9fd9 | Iustin Pop | ports[tcp_port] = [] |
404 | 48ce9fd9 | Iustin Pop | ports[tcp_port].append((instance.name, "drbd disk %s" % dsk.iv_name))
|
405 | 48ce9fd9 | Iustin Pop | # gather network port reservation
|
406 | 48ce9fd9 | Iustin Pop | net_port = getattr(instance, "network_port", None) |
407 | 48ce9fd9 | Iustin Pop | if net_port is not None: |
408 | 48ce9fd9 | Iustin Pop | if net_port not in ports: |
409 | 48ce9fd9 | Iustin Pop | ports[net_port] = [] |
410 | 48ce9fd9 | Iustin Pop | ports[net_port].append((instance.name, "network port"))
|
411 | 48ce9fd9 | Iustin Pop | |
412 | 332d0e37 | Iustin Pop | # instance disk verify
|
413 | 332d0e37 | Iustin Pop | for idx, disk in enumerate(instance.disks): |
414 | 332d0e37 | Iustin Pop | result.extend(["instance '%s' disk %d error: %s" %
|
415 | 332d0e37 | Iustin Pop | (instance.name, idx, msg) for msg in disk.Verify()]) |
416 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(disk, seen_lids, seen_pids))
|
417 | 332d0e37 | Iustin Pop | |
418 | 48ce9fd9 | Iustin Pop | # cluster-wide pool of free ports
|
419 | a8efbb40 | Iustin Pop | for free_port in data.cluster.tcpudp_port_pool: |
420 | 48ce9fd9 | Iustin Pop | if free_port not in ports: |
421 | 48ce9fd9 | Iustin Pop | ports[free_port] = [] |
422 | 48ce9fd9 | Iustin Pop | ports[free_port].append(("cluster", "port marked as free")) |
423 | 48ce9fd9 | Iustin Pop | |
424 | 48ce9fd9 | Iustin Pop | # compute tcp/udp duplicate ports
|
425 | 48ce9fd9 | Iustin Pop | keys = ports.keys() |
426 | 48ce9fd9 | Iustin Pop | keys.sort() |
427 | 48ce9fd9 | Iustin Pop | for pnum in keys: |
428 | 48ce9fd9 | Iustin Pop | pdata = ports[pnum] |
429 | 48ce9fd9 | Iustin Pop | if len(pdata) > 1: |
430 | 1f864b60 | Iustin Pop | txt = utils.CommaJoin(["%s/%s" % val for val in pdata]) |
431 | 48ce9fd9 | Iustin Pop | result.append("tcp/udp port %s has duplicates: %s" % (pnum, txt))
|
432 | 48ce9fd9 | Iustin Pop | |
433 | 48ce9fd9 | Iustin Pop | # highest used tcp port check
|
434 | 48ce9fd9 | Iustin Pop | if keys:
|
435 | a8efbb40 | Iustin Pop | if keys[-1] > data.cluster.highest_used_port: |
436 | 48ce9fd9 | Iustin Pop | result.append("Highest used port mismatch, saved %s, computed %s" %
|
437 | a8efbb40 | Iustin Pop | (data.cluster.highest_used_port, keys[-1]))
|
438 | a8efbb40 | Iustin Pop | |
439 | 3a26773f | Iustin Pop | if not data.nodes[data.cluster.master_node].master_candidate: |
440 | 3a26773f | Iustin Pop | result.append("Master node is not a master candidate")
|
441 | 3a26773f | Iustin Pop | |
442 | 4a89c54a | Iustin Pop | # master candidate checks
|
443 | e623dbe3 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats()
|
444 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
445 | ec0292f1 | Iustin Pop | result.append("Not enough master candidates: actual %d, target %d" %
|
446 | ec0292f1 | Iustin Pop | (mc_now, mc_max)) |
447 | 48ce9fd9 | Iustin Pop | |
448 | 5bf07049 | Iustin Pop | # node checks
|
449 | 81196341 | Iustin Pop | for node_name, node in data.nodes.items(): |
450 | 81196341 | Iustin Pop | if node.name != node_name:
|
451 | 81196341 | Iustin Pop | result.append("Node '%s' is indexed by wrong name '%s'" %
|
452 | 81196341 | Iustin Pop | (node.name, node_name)) |
453 | 5bf07049 | Iustin Pop | if [node.master_candidate, node.drained, node.offline].count(True) > 1: |
454 | 5bf07049 | Iustin Pop | result.append("Node %s state is invalid: master_candidate=%s,"
|
455 | 5bf07049 | Iustin Pop | " drain=%s, offline=%s" %
|
456 | 5bf07049 | Iustin Pop | (node.name, node.master_candidate, node.drain, |
457 | 5bf07049 | Iustin Pop | node.offline)) |
458 | 5bf07049 | Iustin Pop | |
459 | 4a89c54a | Iustin Pop | # drbd minors check
|
460 | 1122eb25 | Iustin Pop | _, duplicates = self._UnlockedComputeDRBDMap()
|
461 | 4a89c54a | Iustin Pop | for node, minor, instance_a, instance_b in duplicates: |
462 | 4a89c54a | Iustin Pop | result.append("DRBD minor %d on node %s is assigned twice to instances"
|
463 | 4a89c54a | Iustin Pop | " %s and %s" % (minor, node, instance_a, instance_b))
|
464 | 4a89c54a | Iustin Pop | |
465 | 0ce8f948 | Iustin Pop | # IP checks
|
466 | b8716596 | Michael Hanselmann | default_nicparams = data.cluster.nicparams[constants.PP_DEFAULT] |
467 | b8716596 | Michael Hanselmann | ips = {} |
468 | b8716596 | Michael Hanselmann | |
469 | b8716596 | Michael Hanselmann | def _AddIpAddress(ip, name): |
470 | b8716596 | Michael Hanselmann | ips.setdefault(ip, []).append(name) |
471 | b8716596 | Michael Hanselmann | |
472 | b8716596 | Michael Hanselmann | _AddIpAddress(data.cluster.master_ip, "cluster_ip")
|
473 | 0ce8f948 | Iustin Pop | |
474 | 0ce8f948 | Iustin Pop | for node in data.nodes.values(): |
475 | b8716596 | Michael Hanselmann | _AddIpAddress(node.primary_ip, "node:%s/primary" % node.name)
|
476 | 0ce8f948 | Iustin Pop | if node.secondary_ip != node.primary_ip:
|
477 | b8716596 | Michael Hanselmann | _AddIpAddress(node.secondary_ip, "node:%s/secondary" % node.name)
|
478 | b8716596 | Michael Hanselmann | |
479 | b8716596 | Michael Hanselmann | for instance in data.instances.values(): |
480 | b8716596 | Michael Hanselmann | for idx, nic in enumerate(instance.nics): |
481 | b8716596 | Michael Hanselmann | if nic.ip is None: |
482 | b8716596 | Michael Hanselmann | continue
|
483 | b8716596 | Michael Hanselmann | |
484 | b8716596 | Michael Hanselmann | nicparams = objects.FillDict(default_nicparams, nic.nicparams) |
485 | b8716596 | Michael Hanselmann | nic_mode = nicparams[constants.NIC_MODE] |
486 | b8716596 | Michael Hanselmann | nic_link = nicparams[constants.NIC_LINK] |
487 | b8716596 | Michael Hanselmann | |
488 | b8716596 | Michael Hanselmann | if nic_mode == constants.NIC_MODE_BRIDGED:
|
489 | b8716596 | Michael Hanselmann | link = "bridge:%s" % nic_link
|
490 | b8716596 | Michael Hanselmann | elif nic_mode == constants.NIC_MODE_ROUTED:
|
491 | b8716596 | Michael Hanselmann | link = "route:%s" % nic_link
|
492 | b8716596 | Michael Hanselmann | else:
|
493 | b8716596 | Michael Hanselmann | raise errors.ProgrammerError("NIC mode '%s' not handled" % nic_mode) |
494 | b8716596 | Michael Hanselmann | |
495 | b8716596 | Michael Hanselmann | _AddIpAddress("%s/%s" % (link, nic.ip),
|
496 | b8716596 | Michael Hanselmann | "instance:%s/nic:%d" % (instance.name, idx))
|
497 | 0ce8f948 | Iustin Pop | |
498 | 0ce8f948 | Iustin Pop | for ip, owners in ips.items(): |
499 | 0ce8f948 | Iustin Pop | if len(owners) > 1: |
500 | 0ce8f948 | Iustin Pop | result.append("IP address %s is used by multiple owners: %s" %
|
501 | 1f864b60 | Iustin Pop | (ip, utils.CommaJoin(owners))) |
502 | b8716596 | Michael Hanselmann | |
503 | a8083063 | Iustin Pop | return result
|
504 | a8083063 | Iustin Pop | |
505 | 4a89c54a | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
506 | 4a89c54a | Iustin Pop | def VerifyConfig(self): |
507 | 4a89c54a | Iustin Pop | """Verify function.
|
508 | 4a89c54a | Iustin Pop |
|
509 | 4a89c54a | Iustin Pop | This is just a wrapper over L{_UnlockedVerifyConfig}.
|
510 | 4a89c54a | Iustin Pop |
|
511 | 4a89c54a | Iustin Pop | @rtype: list
|
512 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
513 | 4a89c54a | Iustin Pop | configuration errors
|
514 | 4a89c54a | Iustin Pop |
|
515 | 4a89c54a | Iustin Pop | """
|
516 | 4a89c54a | Iustin Pop | return self._UnlockedVerifyConfig() |
517 | 4a89c54a | Iustin Pop | |
518 | f78ede4e | Guido Trotter | def _UnlockedSetDiskID(self, disk, node_name): |
519 | a8083063 | Iustin Pop | """Convert the unique ID to the ID needed on the target nodes.
|
520 | a8083063 | Iustin Pop |
|
521 | a8083063 | Iustin Pop | This is used only for drbd, which needs ip/port configuration.
|
522 | a8083063 | Iustin Pop |
|
523 | a8083063 | Iustin Pop | The routine descends down and updates its children also, because
|
524 | a8083063 | Iustin Pop | this helps when the only the top device is passed to the remote
|
525 | a8083063 | Iustin Pop | node.
|
526 | a8083063 | Iustin Pop |
|
527 | f78ede4e | Guido Trotter | This function is for internal use, when the config lock is already held.
|
528 | f78ede4e | Guido Trotter |
|
529 | a8083063 | Iustin Pop | """
|
530 | a8083063 | Iustin Pop | if disk.children:
|
531 | a8083063 | Iustin Pop | for child in disk.children: |
532 | f78ede4e | Guido Trotter | self._UnlockedSetDiskID(child, node_name)
|
533 | a8083063 | Iustin Pop | |
534 | a8083063 | Iustin Pop | if disk.logical_id is None and disk.physical_id is not None: |
535 | a8083063 | Iustin Pop | return
|
536 | ffa1c0dc | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
537 | f9518d38 | Iustin Pop | pnode, snode, port, pminor, sminor, secret = disk.logical_id |
538 | a8083063 | Iustin Pop | if node_name not in (pnode, snode): |
539 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("DRBD device not knowing node %s" % |
540 | 3ecf6786 | Iustin Pop | node_name) |
541 | f78ede4e | Guido Trotter | pnode_info = self._UnlockedGetNodeInfo(pnode)
|
542 | f78ede4e | Guido Trotter | snode_info = self._UnlockedGetNodeInfo(snode)
|
543 | a8083063 | Iustin Pop | if pnode_info is None or snode_info is None: |
544 | a8083063 | Iustin Pop | raise errors.ConfigurationError("Can't find primary or secondary node" |
545 | a8083063 | Iustin Pop | " for %s" % str(disk)) |
546 | ffa1c0dc | Iustin Pop | p_data = (pnode_info.secondary_ip, port) |
547 | ffa1c0dc | Iustin Pop | s_data = (snode_info.secondary_ip, port) |
548 | a8083063 | Iustin Pop | if pnode == node_name:
|
549 | f9518d38 | Iustin Pop | disk.physical_id = p_data + s_data + (pminor, secret) |
550 | a8083063 | Iustin Pop | else: # it must be secondary, we tested above |
551 | f9518d38 | Iustin Pop | disk.physical_id = s_data + p_data + (sminor, secret) |
552 | a8083063 | Iustin Pop | else:
|
553 | a8083063 | Iustin Pop | disk.physical_id = disk.logical_id |
554 | a8083063 | Iustin Pop | return
|
555 | a8083063 | Iustin Pop | |
556 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
557 | f78ede4e | Guido Trotter | def SetDiskID(self, disk, node_name): |
558 | f78ede4e | Guido Trotter | """Convert the unique ID to the ID needed on the target nodes.
|
559 | f78ede4e | Guido Trotter |
|
560 | f78ede4e | Guido Trotter | This is used only for drbd, which needs ip/port configuration.
|
561 | f78ede4e | Guido Trotter |
|
562 | f78ede4e | Guido Trotter | The routine descends down and updates its children also, because
|
563 | f78ede4e | Guido Trotter | this helps when the only the top device is passed to the remote
|
564 | f78ede4e | Guido Trotter | node.
|
565 | f78ede4e | Guido Trotter |
|
566 | f78ede4e | Guido Trotter | """
|
567 | f78ede4e | Guido Trotter | return self._UnlockedSetDiskID(disk, node_name) |
568 | f78ede4e | Guido Trotter | |
569 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
570 | b2fddf63 | Iustin Pop | def AddTcpUdpPort(self, port): |
571 | b2fddf63 | Iustin Pop | """Adds a new port to the available port pool.
|
572 | b2fddf63 | Iustin Pop |
|
573 | b2fddf63 | Iustin Pop | """
|
574 | 264bb3c5 | Michael Hanselmann | if not isinstance(port, int): |
575 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed for port") |
576 | 264bb3c5 | Michael Hanselmann | |
577 | b2fddf63 | Iustin Pop | self._config_data.cluster.tcpudp_port_pool.add(port)
|
578 | 264bb3c5 | Michael Hanselmann | self._WriteConfig()
|
579 | 264bb3c5 | Michael Hanselmann | |
580 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
581 | b2fddf63 | Iustin Pop | def GetPortList(self): |
582 | 264bb3c5 | Michael Hanselmann | """Returns a copy of the current port list.
|
583 | 264bb3c5 | Michael Hanselmann |
|
584 | 264bb3c5 | Michael Hanselmann | """
|
585 | b2fddf63 | Iustin Pop | return self._config_data.cluster.tcpudp_port_pool.copy() |
586 | 264bb3c5 | Michael Hanselmann | |
587 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
588 | a8083063 | Iustin Pop | def AllocatePort(self): |
589 | a8083063 | Iustin Pop | """Allocate a port.
|
590 | a8083063 | Iustin Pop |
|
591 | b2fddf63 | Iustin Pop | The port will be taken from the available port pool or from the
|
592 | b2fddf63 | Iustin Pop | default port range (and in this case we increase
|
593 | b2fddf63 | Iustin Pop | highest_used_port).
|
594 | a8083063 | Iustin Pop |
|
595 | a8083063 | Iustin Pop | """
|
596 | 264bb3c5 | Michael Hanselmann | # If there are TCP/IP ports configured, we use them first.
|
597 | b2fddf63 | Iustin Pop | if self._config_data.cluster.tcpudp_port_pool: |
598 | b2fddf63 | Iustin Pop | port = self._config_data.cluster.tcpudp_port_pool.pop()
|
599 | 264bb3c5 | Michael Hanselmann | else:
|
600 | 264bb3c5 | Michael Hanselmann | port = self._config_data.cluster.highest_used_port + 1 |
601 | 264bb3c5 | Michael Hanselmann | if port >= constants.LAST_DRBD_PORT:
|
602 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("The highest used port is greater" |
603 | 3ecf6786 | Iustin Pop | " than %s. Aborting." %
|
604 | 3ecf6786 | Iustin Pop | constants.LAST_DRBD_PORT) |
605 | 264bb3c5 | Michael Hanselmann | self._config_data.cluster.highest_used_port = port
|
606 | a8083063 | Iustin Pop | |
607 | a8083063 | Iustin Pop | self._WriteConfig()
|
608 | a8083063 | Iustin Pop | return port
|
609 | a8083063 | Iustin Pop | |
610 | 6d2e83d5 | Iustin Pop | def _UnlockedComputeDRBDMap(self): |
611 | a81c53c9 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
612 | a81c53c9 | Iustin Pop |
|
613 | 4a89c54a | Iustin Pop | @rtype: (dict, list)
|
614 | c41eea6e | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
615 | c41eea6e | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
616 | 4a89c54a | Iustin Pop | an empty list), and a list of duplicates; if the duplicates
|
617 | 4a89c54a | Iustin Pop | list is not empty, the configuration is corrupted and its caller
|
618 | 4a89c54a | Iustin Pop | should raise an exception
|
619 | a81c53c9 | Iustin Pop |
|
620 | a81c53c9 | Iustin Pop | """
|
621 | a81c53c9 | Iustin Pop | def _AppendUsedPorts(instance_name, disk, used): |
622 | 4a89c54a | Iustin Pop | duplicates = [] |
623 | f9518d38 | Iustin Pop | if disk.dev_type == constants.LD_DRBD8 and len(disk.logical_id) >= 5: |
624 | 7c4d6c7b | Michael Hanselmann | node_a, node_b, _, minor_a, minor_b = disk.logical_id[:5]
|
625 | 7c4d6c7b | Michael Hanselmann | for node, port in ((node_a, minor_a), (node_b, minor_b)): |
626 | 4a89c54a | Iustin Pop | assert node in used, ("Node '%s' of instance '%s' not found" |
627 | 4a89c54a | Iustin Pop | " in node list" % (node, instance_name))
|
628 | a81c53c9 | Iustin Pop | if port in used[node]: |
629 | 4a89c54a | Iustin Pop | duplicates.append((node, port, instance_name, used[node][port])) |
630 | 4a89c54a | Iustin Pop | else:
|
631 | 4a89c54a | Iustin Pop | used[node][port] = instance_name |
632 | a81c53c9 | Iustin Pop | if disk.children:
|
633 | a81c53c9 | Iustin Pop | for child in disk.children: |
634 | 4a89c54a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance_name, child, used)) |
635 | 4a89c54a | Iustin Pop | return duplicates
|
636 | a81c53c9 | Iustin Pop | |
637 | 4a89c54a | Iustin Pop | duplicates = [] |
638 | a81c53c9 | Iustin Pop | my_dict = dict((node, {}) for node in self._config_data.nodes) |
639 | 79b26a7a | Iustin Pop | for instance in self._config_data.instances.itervalues(): |
640 | 79b26a7a | Iustin Pop | for disk in instance.disks: |
641 | 79b26a7a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance.name, disk, my_dict)) |
642 | a81c53c9 | Iustin Pop | for (node, minor), instance in self._temporary_drbds.iteritems(): |
643 | 79b26a7a | Iustin Pop | if minor in my_dict[node] and my_dict[node][minor] != instance: |
644 | 4a89c54a | Iustin Pop | duplicates.append((node, minor, instance, my_dict[node][minor])) |
645 | 4a89c54a | Iustin Pop | else:
|
646 | 4a89c54a | Iustin Pop | my_dict[node][minor] = instance |
647 | 4a89c54a | Iustin Pop | return my_dict, duplicates
|
648 | a81c53c9 | Iustin Pop | |
649 | a81c53c9 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
650 | 6d2e83d5 | Iustin Pop | def ComputeDRBDMap(self): |
651 | 6d2e83d5 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
652 | 6d2e83d5 | Iustin Pop |
|
653 | 6d2e83d5 | Iustin Pop | This is just a wrapper over L{_UnlockedComputeDRBDMap}.
|
654 | 6d2e83d5 | Iustin Pop |
|
655 | 6d2e83d5 | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
656 | 6d2e83d5 | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
657 | 6d2e83d5 | Iustin Pop | an empty list).
|
658 | 6d2e83d5 | Iustin Pop |
|
659 | 6d2e83d5 | Iustin Pop | """
|
660 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
661 | 4a89c54a | Iustin Pop | if duplicates:
|
662 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
663 | 4a89c54a | Iustin Pop | str(duplicates))
|
664 | 4a89c54a | Iustin Pop | return d_map
|
665 | 6d2e83d5 | Iustin Pop | |
666 | 6d2e83d5 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
667 | a81c53c9 | Iustin Pop | def AllocateDRBDMinor(self, nodes, instance): |
668 | a81c53c9 | Iustin Pop | """Allocate a drbd minor.
|
669 | a81c53c9 | Iustin Pop |
|
670 | a81c53c9 | Iustin Pop | The free minor will be automatically computed from the existing
|
671 | a81c53c9 | Iustin Pop | devices. A node can be given multiple times in order to allocate
|
672 | a81c53c9 | Iustin Pop | multiple minors. The result is the list of minors, in the same
|
673 | a81c53c9 | Iustin Pop | order as the passed nodes.
|
674 | a81c53c9 | Iustin Pop |
|
675 | 32388e6d | Iustin Pop | @type instance: string
|
676 | 32388e6d | Iustin Pop | @param instance: the instance for which we allocate minors
|
677 | 32388e6d | Iustin Pop |
|
678 | a81c53c9 | Iustin Pop | """
|
679 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
680 | 4a89c54a | Iustin Pop | "Invalid argument '%s' passed to AllocateDRBDMinor" % instance
|
681 | 32388e6d | Iustin Pop | |
682 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
683 | 4a89c54a | Iustin Pop | if duplicates:
|
684 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
685 | 4a89c54a | Iustin Pop | str(duplicates))
|
686 | a81c53c9 | Iustin Pop | result = [] |
687 | a81c53c9 | Iustin Pop | for nname in nodes: |
688 | a81c53c9 | Iustin Pop | ndata = d_map[nname] |
689 | a81c53c9 | Iustin Pop | if not ndata: |
690 | a81c53c9 | Iustin Pop | # no minors used, we can start at 0
|
691 | a81c53c9 | Iustin Pop | result.append(0)
|
692 | a81c53c9 | Iustin Pop | ndata[0] = instance
|
693 | d48663e4 | Iustin Pop | self._temporary_drbds[(nname, 0)] = instance |
694 | a81c53c9 | Iustin Pop | continue
|
695 | a81c53c9 | Iustin Pop | keys = ndata.keys() |
696 | a81c53c9 | Iustin Pop | keys.sort() |
697 | a81c53c9 | Iustin Pop | ffree = utils.FirstFree(keys) |
698 | a81c53c9 | Iustin Pop | if ffree is None: |
699 | a81c53c9 | Iustin Pop | # return the next minor
|
700 | a81c53c9 | Iustin Pop | # TODO: implement high-limit check
|
701 | a81c53c9 | Iustin Pop | minor = keys[-1] + 1 |
702 | a81c53c9 | Iustin Pop | else:
|
703 | a81c53c9 | Iustin Pop | minor = ffree |
704 | 4a89c54a | Iustin Pop | # double-check minor against current instances
|
705 | 4a89c54a | Iustin Pop | assert minor not in d_map[nname], \ |
706 | 4a89c54a | Iustin Pop | ("Attempt to reuse allocated DRBD minor %d on node %s,"
|
707 | 4a89c54a | Iustin Pop | " already allocated to instance %s" %
|
708 | 4a89c54a | Iustin Pop | (minor, nname, d_map[nname][minor])) |
709 | a81c53c9 | Iustin Pop | ndata[minor] = instance |
710 | 4a89c54a | Iustin Pop | # double-check minor against reservation
|
711 | 4a89c54a | Iustin Pop | r_key = (nname, minor) |
712 | 4a89c54a | Iustin Pop | assert r_key not in self._temporary_drbds, \ |
713 | 4a89c54a | Iustin Pop | ("Attempt to reuse reserved DRBD minor %d on node %s,"
|
714 | 4a89c54a | Iustin Pop | " reserved for instance %s" %
|
715 | 4a89c54a | Iustin Pop | (minor, nname, self._temporary_drbds[r_key]))
|
716 | 4a89c54a | Iustin Pop | self._temporary_drbds[r_key] = instance
|
717 | 4a89c54a | Iustin Pop | result.append(minor) |
718 | a81c53c9 | Iustin Pop | logging.debug("Request to allocate drbd minors, input: %s, returning %s",
|
719 | a81c53c9 | Iustin Pop | nodes, result) |
720 | a81c53c9 | Iustin Pop | return result
|
721 | a81c53c9 | Iustin Pop | |
722 | 61cf6b5e | Iustin Pop | def _UnlockedReleaseDRBDMinors(self, instance): |
723 | a81c53c9 | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
724 | a81c53c9 | Iustin Pop |
|
725 | a81c53c9 | Iustin Pop | @type instance: string
|
726 | a81c53c9 | Iustin Pop | @param instance: the instance for which temporary minors should be
|
727 | a81c53c9 | Iustin Pop | released
|
728 | a81c53c9 | Iustin Pop |
|
729 | a81c53c9 | Iustin Pop | """
|
730 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
731 | 32388e6d | Iustin Pop | "Invalid argument passed to ReleaseDRBDMinors"
|
732 | a81c53c9 | Iustin Pop | for key, name in self._temporary_drbds.items(): |
733 | a81c53c9 | Iustin Pop | if name == instance:
|
734 | a81c53c9 | Iustin Pop | del self._temporary_drbds[key] |
735 | a81c53c9 | Iustin Pop | |
736 | 61cf6b5e | Iustin Pop | @locking.ssynchronized(_config_lock)
|
737 | 61cf6b5e | Iustin Pop | def ReleaseDRBDMinors(self, instance): |
738 | 61cf6b5e | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
739 | 61cf6b5e | Iustin Pop |
|
740 | 61cf6b5e | Iustin Pop | This should be called on the error paths, on the success paths
|
741 | 61cf6b5e | Iustin Pop | it's automatically called by the ConfigWriter add and update
|
742 | 61cf6b5e | Iustin Pop | functions.
|
743 | 61cf6b5e | Iustin Pop |
|
744 | 61cf6b5e | Iustin Pop | This function is just a wrapper over L{_UnlockedReleaseDRBDMinors}.
|
745 | 61cf6b5e | Iustin Pop |
|
746 | 61cf6b5e | Iustin Pop | @type instance: string
|
747 | 61cf6b5e | Iustin Pop | @param instance: the instance for which temporary minors should be
|
748 | 61cf6b5e | Iustin Pop | released
|
749 | 61cf6b5e | Iustin Pop |
|
750 | 61cf6b5e | Iustin Pop | """
|
751 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance)
|
752 | 61cf6b5e | Iustin Pop | |
753 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
754 | 4a8b186a | Michael Hanselmann | def GetConfigVersion(self): |
755 | 4a8b186a | Michael Hanselmann | """Get the configuration version.
|
756 | 4a8b186a | Michael Hanselmann |
|
757 | 4a8b186a | Michael Hanselmann | @return: Config version
|
758 | 4a8b186a | Michael Hanselmann |
|
759 | 4a8b186a | Michael Hanselmann | """
|
760 | 4a8b186a | Michael Hanselmann | return self._config_data.version |
761 | 4a8b186a | Michael Hanselmann | |
762 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
763 | 4a8b186a | Michael Hanselmann | def GetClusterName(self): |
764 | 4a8b186a | Michael Hanselmann | """Get cluster name.
|
765 | 4a8b186a | Michael Hanselmann |
|
766 | 4a8b186a | Michael Hanselmann | @return: Cluster name
|
767 | 4a8b186a | Michael Hanselmann |
|
768 | 4a8b186a | Michael Hanselmann | """
|
769 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.cluster_name |
770 | 4a8b186a | Michael Hanselmann | |
771 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
772 | 4a8b186a | Michael Hanselmann | def GetMasterNode(self): |
773 | 4a8b186a | Michael Hanselmann | """Get the hostname of the master node for this cluster.
|
774 | 4a8b186a | Michael Hanselmann |
|
775 | 4a8b186a | Michael Hanselmann | @return: Master hostname
|
776 | 4a8b186a | Michael Hanselmann |
|
777 | 4a8b186a | Michael Hanselmann | """
|
778 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_node |
779 | 4a8b186a | Michael Hanselmann | |
780 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
781 | 4a8b186a | Michael Hanselmann | def GetMasterIP(self): |
782 | 4a8b186a | Michael Hanselmann | """Get the IP of the master node for this cluster.
|
783 | 4a8b186a | Michael Hanselmann |
|
784 | 4a8b186a | Michael Hanselmann | @return: Master IP
|
785 | 4a8b186a | Michael Hanselmann |
|
786 | 4a8b186a | Michael Hanselmann | """
|
787 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_ip |
788 | 4a8b186a | Michael Hanselmann | |
789 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
790 | 4a8b186a | Michael Hanselmann | def GetMasterNetdev(self): |
791 | 4a8b186a | Michael Hanselmann | """Get the master network device for this cluster.
|
792 | 4a8b186a | Michael Hanselmann |
|
793 | 4a8b186a | Michael Hanselmann | """
|
794 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_netdev |
795 | 4a8b186a | Michael Hanselmann | |
796 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
797 | 4a8b186a | Michael Hanselmann | def GetFileStorageDir(self): |
798 | 4a8b186a | Michael Hanselmann | """Get the file storage dir for this cluster.
|
799 | 4a8b186a | Michael Hanselmann |
|
800 | 4a8b186a | Michael Hanselmann | """
|
801 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.file_storage_dir |
802 | 4a8b186a | Michael Hanselmann | |
803 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
804 | 4a8b186a | Michael Hanselmann | def GetHypervisorType(self): |
805 | 4a8b186a | Michael Hanselmann | """Get the hypervisor type for this cluster.
|
806 | 4a8b186a | Michael Hanselmann |
|
807 | 4a8b186a | Michael Hanselmann | """
|
808 | 066f465d | Guido Trotter | return self._config_data.cluster.enabled_hypervisors[0] |
809 | 4a8b186a | Michael Hanselmann | |
810 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
811 | a8083063 | Iustin Pop | def GetHostKey(self): |
812 | a8083063 | Iustin Pop | """Return the rsa hostkey from the config.
|
813 | a8083063 | Iustin Pop |
|
814 | c41eea6e | Iustin Pop | @rtype: string
|
815 | c41eea6e | Iustin Pop | @return: the rsa hostkey
|
816 | a8083063 | Iustin Pop |
|
817 | a8083063 | Iustin Pop | """
|
818 | a8083063 | Iustin Pop | return self._config_data.cluster.rsahostkeypub |
819 | a8083063 | Iustin Pop | |
820 | bf4af505 | Apollon Oikonomopoulos | @locking.ssynchronized(_config_lock, shared=1) |
821 | bf4af505 | Apollon Oikonomopoulos | def GetDefaultIAllocator(self): |
822 | bf4af505 | Apollon Oikonomopoulos | """Get the default instance allocator for this cluster.
|
823 | bf4af505 | Apollon Oikonomopoulos |
|
824 | bf4af505 | Apollon Oikonomopoulos | """
|
825 | bf4af505 | Apollon Oikonomopoulos | return self._config_data.cluster.default_iallocator |
826 | bf4af505 | Apollon Oikonomopoulos | |
827 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
828 | 0debfb35 | Guido Trotter | def AddInstance(self, instance, ec_id): |
829 | a8083063 | Iustin Pop | """Add an instance to the config.
|
830 | a8083063 | Iustin Pop |
|
831 | a8083063 | Iustin Pop | This should be used after creating a new instance.
|
832 | a8083063 | Iustin Pop |
|
833 | c41eea6e | Iustin Pop | @type instance: L{objects.Instance}
|
834 | c41eea6e | Iustin Pop | @param instance: the instance object
|
835 | c41eea6e | Iustin Pop |
|
836 | a8083063 | Iustin Pop | """
|
837 | a8083063 | Iustin Pop | if not isinstance(instance, objects.Instance): |
838 | a8083063 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed to AddInstance") |
839 | a8083063 | Iustin Pop | |
840 | e00fb268 | Iustin Pop | if instance.disk_template != constants.DT_DISKLESS:
|
841 | e00fb268 | Iustin Pop | all_lvs = instance.MapLVsByNode() |
842 | 74a48621 | Iustin Pop | logging.info("Instance '%s' DISK_LAYOUT: %s", instance.name, all_lvs)
|
843 | 923b1523 | Iustin Pop | |
844 | e4640214 | Guido Trotter | all_macs = self._AllMACs()
|
845 | e4640214 | Guido Trotter | for nic in instance.nics: |
846 | e4640214 | Guido Trotter | if nic.mac in all_macs: |
847 | e4640214 | Guido Trotter | raise errors.ConfigurationError("Cannot add instance %s:" |
848 | 430b923c | Iustin Pop | " MAC address '%s' already in use." %
|
849 | 430b923c | Iustin Pop | (instance.name, nic.mac)) |
850 | 430b923c | Iustin Pop | |
851 | 0debfb35 | Guido Trotter | self._EnsureUUID(instance, ec_id)
|
852 | e4640214 | Guido Trotter | |
853 | b989e85d | Iustin Pop | instance.serial_no = 1
|
854 | d693c864 | Iustin Pop | instance.ctime = instance.mtime = time.time() |
855 | a8083063 | Iustin Pop | self._config_data.instances[instance.name] = instance
|
856 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
857 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance.name)
|
858 | a8083063 | Iustin Pop | self._WriteConfig()
|
859 | a8083063 | Iustin Pop | |
860 | 0debfb35 | Guido Trotter | def _EnsureUUID(self, item, ec_id): |
861 | 430b923c | Iustin Pop | """Ensures a given object has a valid UUID.
|
862 | 430b923c | Iustin Pop |
|
863 | 430b923c | Iustin Pop | @param item: the instance or node to be checked
|
864 | 0debfb35 | Guido Trotter | @param ec_id: the execution context id for the uuid reservation
|
865 | 430b923c | Iustin Pop |
|
866 | 430b923c | Iustin Pop | """
|
867 | 430b923c | Iustin Pop | if not item.uuid: |
868 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(ec_id)
|
869 | be0fc05d | Iustin Pop | elif item.uuid in self._AllIDs(include_temporary=True): |
870 | be0fc05d | Iustin Pop | raise errors.ConfigurationError("Cannot add '%s': UUID %s already" |
871 | be0fc05d | Iustin Pop | " in use" % (item.name, item.uuid))
|
872 | 430b923c | Iustin Pop | |
873 | 6a408fb2 | Iustin Pop | def _SetInstanceStatus(self, instance_name, status): |
874 | 6a408fb2 | Iustin Pop | """Set the instance's status to a given value.
|
875 | a8083063 | Iustin Pop |
|
876 | a8083063 | Iustin Pop | """
|
877 | 0d68c45d | Iustin Pop | assert isinstance(status, bool), \ |
878 | 0d68c45d | Iustin Pop | "Invalid status '%s' passed to SetInstanceStatus" % (status,)
|
879 | a8083063 | Iustin Pop | |
880 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
881 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % |
882 | 3ecf6786 | Iustin Pop | instance_name) |
883 | a8083063 | Iustin Pop | instance = self._config_data.instances[instance_name]
|
884 | 0d68c45d | Iustin Pop | if instance.admin_up != status:
|
885 | 0d68c45d | Iustin Pop | instance.admin_up = status |
886 | b989e85d | Iustin Pop | instance.serial_no += 1
|
887 | d693c864 | Iustin Pop | instance.mtime = time.time() |
888 | 455a3445 | Iustin Pop | self._WriteConfig()
|
889 | a8083063 | Iustin Pop | |
890 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
891 | 6a408fb2 | Iustin Pop | def MarkInstanceUp(self, instance_name): |
892 | 6a408fb2 | Iustin Pop | """Mark the instance status to up in the config.
|
893 | 6a408fb2 | Iustin Pop |
|
894 | 6a408fb2 | Iustin Pop | """
|
895 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, True) |
896 | 6a408fb2 | Iustin Pop | |
897 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
898 | a8083063 | Iustin Pop | def RemoveInstance(self, instance_name): |
899 | a8083063 | Iustin Pop | """Remove the instance from the configuration.
|
900 | a8083063 | Iustin Pop |
|
901 | a8083063 | Iustin Pop | """
|
902 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
903 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % instance_name) |
904 | a8083063 | Iustin Pop | del self._config_data.instances[instance_name] |
905 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
906 | a8083063 | Iustin Pop | self._WriteConfig()
|
907 | a8083063 | Iustin Pop | |
908 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
909 | fc95f88f | Iustin Pop | def RenameInstance(self, old_name, new_name): |
910 | fc95f88f | Iustin Pop | """Rename an instance.
|
911 | fc95f88f | Iustin Pop |
|
912 | fc95f88f | Iustin Pop | This needs to be done in ConfigWriter and not by RemoveInstance
|
913 | fc95f88f | Iustin Pop | combined with AddInstance as only we can guarantee an atomic
|
914 | fc95f88f | Iustin Pop | rename.
|
915 | fc95f88f | Iustin Pop |
|
916 | fc95f88f | Iustin Pop | """
|
917 | fc95f88f | Iustin Pop | if old_name not in self._config_data.instances: |
918 | fc95f88f | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % old_name) |
919 | fc95f88f | Iustin Pop | inst = self._config_data.instances[old_name]
|
920 | fc95f88f | Iustin Pop | del self._config_data.instances[old_name] |
921 | fc95f88f | Iustin Pop | inst.name = new_name |
922 | b23c4333 | Manuel Franceschini | |
923 | b23c4333 | Manuel Franceschini | for disk in inst.disks: |
924 | b23c4333 | Manuel Franceschini | if disk.dev_type == constants.LD_FILE:
|
925 | b23c4333 | Manuel Franceschini | # rename the file paths in logical and physical id
|
926 | b23c4333 | Manuel Franceschini | file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1]))
|
927 | b23c4333 | Manuel Franceschini | disk.physical_id = disk.logical_id = (disk.logical_id[0],
|
928 | c4feafe8 | Iustin Pop | utils.PathJoin(file_storage_dir, |
929 | c4feafe8 | Iustin Pop | inst.name, |
930 | c4feafe8 | Iustin Pop | disk.iv_name)) |
931 | b23c4333 | Manuel Franceschini | |
932 | fc95f88f | Iustin Pop | self._config_data.instances[inst.name] = inst
|
933 | fc95f88f | Iustin Pop | self._WriteConfig()
|
934 | fc95f88f | Iustin Pop | |
935 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
936 | a8083063 | Iustin Pop | def MarkInstanceDown(self, instance_name): |
937 | a8083063 | Iustin Pop | """Mark the status of an instance to down in the configuration.
|
938 | a8083063 | Iustin Pop |
|
939 | a8083063 | Iustin Pop | """
|
940 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, False) |
941 | a8083063 | Iustin Pop | |
942 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceList(self): |
943 | 94bbfece | Iustin Pop | """Get the list of instances.
|
944 | 94bbfece | Iustin Pop |
|
945 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
946 | 94bbfece | Iustin Pop |
|
947 | 94bbfece | Iustin Pop | """
|
948 | 94bbfece | Iustin Pop | return self._config_data.instances.keys() |
949 | 94bbfece | Iustin Pop | |
950 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
951 | a8083063 | Iustin Pop | def GetInstanceList(self): |
952 | a8083063 | Iustin Pop | """Get the list of instances.
|
953 | a8083063 | Iustin Pop |
|
954 | c41eea6e | Iustin Pop | @return: array of instances, ex. ['instance2.example.com',
|
955 | c41eea6e | Iustin Pop | 'instance1.example.com']
|
956 | a8083063 | Iustin Pop |
|
957 | a8083063 | Iustin Pop | """
|
958 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceList() |
959 | a8083063 | Iustin Pop | |
960 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
961 | a8083063 | Iustin Pop | def ExpandInstanceName(self, short_name): |
962 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
963 | a8083063 | Iustin Pop |
|
964 | a8083063 | Iustin Pop | """
|
965 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
966 | bcdf16d7 | Guido Trotter | self._config_data.instances.keys(),
|
967 | bcdf16d7 | Guido Trotter | case_sensitive=False)
|
968 | a8083063 | Iustin Pop | |
969 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceInfo(self, instance_name): |
970 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
971 | 94bbfece | Iustin Pop |
|
972 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
973 | 94bbfece | Iustin Pop |
|
974 | 94bbfece | Iustin Pop | """
|
975 | 94bbfece | Iustin Pop | if instance_name not in self._config_data.instances: |
976 | 94bbfece | Iustin Pop | return None |
977 | 94bbfece | Iustin Pop | |
978 | 94bbfece | Iustin Pop | return self._config_data.instances[instance_name] |
979 | 94bbfece | Iustin Pop | |
980 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
981 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
982 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
983 | a8083063 | Iustin Pop |
|
984 | 5bbd3f7f | Michael Hanselmann | It takes the information from the configuration file. Other information of
|
985 | a8083063 | Iustin Pop | an instance are taken from the live systems.
|
986 | a8083063 | Iustin Pop |
|
987 | c41eea6e | Iustin Pop | @param instance_name: name of the instance, e.g.
|
988 | c41eea6e | Iustin Pop | I{instance1.example.com}
|
989 | a8083063 | Iustin Pop |
|
990 | c41eea6e | Iustin Pop | @rtype: L{objects.Instance}
|
991 | c41eea6e | Iustin Pop | @return: the instance object
|
992 | a8083063 | Iustin Pop |
|
993 | a8083063 | Iustin Pop | """
|
994 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceInfo(instance_name) |
995 | a8083063 | Iustin Pop | |
996 | 0b2de758 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
997 | 0b2de758 | Iustin Pop | def GetAllInstancesInfo(self): |
998 | 0b2de758 | Iustin Pop | """Get the configuration of all instances.
|
999 | 0b2de758 | Iustin Pop |
|
1000 | 0b2de758 | Iustin Pop | @rtype: dict
|
1001 | 5fcc718f | Iustin Pop | @return: dict of (instance, instance_info), where instance_info is what
|
1002 | 0b2de758 | Iustin Pop | would GetInstanceInfo return for the node
|
1003 | 0b2de758 | Iustin Pop |
|
1004 | 0b2de758 | Iustin Pop | """
|
1005 | 64d3bd52 | Guido Trotter | my_dict = dict([(instance, self._UnlockedGetInstanceInfo(instance)) |
1006 | 64d3bd52 | Guido Trotter | for instance in self._UnlockedGetInstanceList()]) |
1007 | 0b2de758 | Iustin Pop | return my_dict
|
1008 | 0b2de758 | Iustin Pop | |
1009 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1010 | 0debfb35 | Guido Trotter | def AddNode(self, node, ec_id): |
1011 | a8083063 | Iustin Pop | """Add a node to the configuration.
|
1012 | a8083063 | Iustin Pop |
|
1013 | c41eea6e | Iustin Pop | @type node: L{objects.Node}
|
1014 | c41eea6e | Iustin Pop | @param node: a Node instance
|
1015 | a8083063 | Iustin Pop |
|
1016 | a8083063 | Iustin Pop | """
|
1017 | 099c52ad | Iustin Pop | logging.info("Adding node %s to configuration", node.name)
|
1018 | d8470559 | Michael Hanselmann | |
1019 | 0debfb35 | Guido Trotter | self._EnsureUUID(node, ec_id)
|
1020 | 430b923c | Iustin Pop | |
1021 | b989e85d | Iustin Pop | node.serial_no = 1
|
1022 | d693c864 | Iustin Pop | node.ctime = node.mtime = time.time() |
1023 | a8083063 | Iustin Pop | self._config_data.nodes[node.name] = node
|
1024 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1025 | a8083063 | Iustin Pop | self._WriteConfig()
|
1026 | a8083063 | Iustin Pop | |
1027 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1028 | a8083063 | Iustin Pop | def RemoveNode(self, node_name): |
1029 | a8083063 | Iustin Pop | """Remove a node from the configuration.
|
1030 | a8083063 | Iustin Pop |
|
1031 | a8083063 | Iustin Pop | """
|
1032 | 099c52ad | Iustin Pop | logging.info("Removing node %s from configuration", node_name)
|
1033 | d8470559 | Michael Hanselmann | |
1034 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1035 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown node '%s'" % node_name) |
1036 | a8083063 | Iustin Pop | |
1037 | a8083063 | Iustin Pop | del self._config_data.nodes[node_name] |
1038 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1039 | a8083063 | Iustin Pop | self._WriteConfig()
|
1040 | a8083063 | Iustin Pop | |
1041 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1042 | a8083063 | Iustin Pop | def ExpandNodeName(self, short_name): |
1043 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
1044 | a8083063 | Iustin Pop |
|
1045 | a8083063 | Iustin Pop | """
|
1046 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
1047 | bcdf16d7 | Guido Trotter | self._config_data.nodes.keys(),
|
1048 | bcdf16d7 | Guido Trotter | case_sensitive=False)
|
1049 | a8083063 | Iustin Pop | |
1050 | f78ede4e | Guido Trotter | def _UnlockedGetNodeInfo(self, node_name): |
1051 | a8083063 | Iustin Pop | """Get the configuration of a node, as stored in the config.
|
1052 | a8083063 | Iustin Pop |
|
1053 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1054 | c41eea6e | Iustin Pop | held.
|
1055 | f78ede4e | Guido Trotter |
|
1056 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1057 | a8083063 | Iustin Pop |
|
1058 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1059 | c41eea6e | Iustin Pop | @return: the node object
|
1060 | a8083063 | Iustin Pop |
|
1061 | a8083063 | Iustin Pop | """
|
1062 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1063 | a8083063 | Iustin Pop | return None |
1064 | a8083063 | Iustin Pop | |
1065 | a8083063 | Iustin Pop | return self._config_data.nodes[node_name] |
1066 | a8083063 | Iustin Pop | |
1067 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1068 | f78ede4e | Guido Trotter | def GetNodeInfo(self, node_name): |
1069 | f78ede4e | Guido Trotter | """Get the configuration of a node, as stored in the config.
|
1070 | f78ede4e | Guido Trotter |
|
1071 | c41eea6e | Iustin Pop | This is just a locked wrapper over L{_UnlockedGetNodeInfo}.
|
1072 | f78ede4e | Guido Trotter |
|
1073 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1074 | c41eea6e | Iustin Pop |
|
1075 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1076 | c41eea6e | Iustin Pop | @return: the node object
|
1077 | f78ede4e | Guido Trotter |
|
1078 | f78ede4e | Guido Trotter | """
|
1079 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeInfo(node_name) |
1080 | f78ede4e | Guido Trotter | |
1081 | f78ede4e | Guido Trotter | def _UnlockedGetNodeList(self): |
1082 | a8083063 | Iustin Pop | """Return the list of nodes which are in the configuration.
|
1083 | a8083063 | Iustin Pop |
|
1084 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1085 | c41eea6e | Iustin Pop | held.
|
1086 | c41eea6e | Iustin Pop |
|
1087 | c41eea6e | Iustin Pop | @rtype: list
|
1088 | f78ede4e | Guido Trotter |
|
1089 | a8083063 | Iustin Pop | """
|
1090 | a8083063 | Iustin Pop | return self._config_data.nodes.keys() |
1091 | a8083063 | Iustin Pop | |
1092 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1093 | f78ede4e | Guido Trotter | def GetNodeList(self): |
1094 | f78ede4e | Guido Trotter | """Return the list of nodes which are in the configuration.
|
1095 | f78ede4e | Guido Trotter |
|
1096 | f78ede4e | Guido Trotter | """
|
1097 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeList() |
1098 | f78ede4e | Guido Trotter | |
1099 | 6819dc49 | Iustin Pop | def _UnlockedGetOnlineNodeList(self): |
1100 | 94a02bb5 | Iustin Pop | """Return the list of nodes which are online.
|
1101 | 94a02bb5 | Iustin Pop |
|
1102 | 94a02bb5 | Iustin Pop | """
|
1103 | 94a02bb5 | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
1104 | 94a02bb5 | Iustin Pop | for node in self._UnlockedGetNodeList()] |
1105 | 94a02bb5 | Iustin Pop | return [node.name for node in all_nodes if not node.offline] |
1106 | 94a02bb5 | Iustin Pop | |
1107 | 94a02bb5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1108 | 6819dc49 | Iustin Pop | def GetOnlineNodeList(self): |
1109 | 6819dc49 | Iustin Pop | """Return the list of nodes which are online.
|
1110 | 6819dc49 | Iustin Pop |
|
1111 | 6819dc49 | Iustin Pop | """
|
1112 | 6819dc49 | Iustin Pop | return self._UnlockedGetOnlineNodeList() |
1113 | 6819dc49 | Iustin Pop | |
1114 | 6819dc49 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1115 | d65e5776 | Iustin Pop | def GetAllNodesInfo(self): |
1116 | d65e5776 | Iustin Pop | """Get the configuration of all nodes.
|
1117 | d65e5776 | Iustin Pop |
|
1118 | d65e5776 | Iustin Pop | @rtype: dict
|
1119 | ec0292f1 | Iustin Pop | @return: dict of (node, node_info), where node_info is what
|
1120 | d65e5776 | Iustin Pop | would GetNodeInfo return for the node
|
1121 | d65e5776 | Iustin Pop |
|
1122 | d65e5776 | Iustin Pop | """
|
1123 | d65e5776 | Iustin Pop | my_dict = dict([(node, self._UnlockedGetNodeInfo(node)) |
1124 | d65e5776 | Iustin Pop | for node in self._UnlockedGetNodeList()]) |
1125 | d65e5776 | Iustin Pop | return my_dict
|
1126 | d65e5776 | Iustin Pop | |
1127 | 23f06b2b | Iustin Pop | def _UnlockedGetMasterCandidateStats(self, exceptions=None): |
1128 | ec0292f1 | Iustin Pop | """Get the number of current and maximum desired and possible candidates.
|
1129 | ec0292f1 | Iustin Pop |
|
1130 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1131 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1132 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1133 | e623dbe3 | Guido Trotter | @return: tuple of (current, desired and possible, possible)
|
1134 | ec0292f1 | Iustin Pop |
|
1135 | ec0292f1 | Iustin Pop | """
|
1136 | e623dbe3 | Guido Trotter | mc_now = mc_should = mc_max = 0
|
1137 | 23f06b2b | Iustin Pop | for node in self._config_data.nodes.values(): |
1138 | 23f06b2b | Iustin Pop | if exceptions and node.name in exceptions: |
1139 | 23f06b2b | Iustin Pop | continue
|
1140 | 5bf07049 | Iustin Pop | if not (node.offline or node.drained): |
1141 | ec0292f1 | Iustin Pop | mc_max += 1
|
1142 | ec0292f1 | Iustin Pop | if node.master_candidate:
|
1143 | ec0292f1 | Iustin Pop | mc_now += 1
|
1144 | e623dbe3 | Guido Trotter | mc_should = min(mc_max, self._config_data.cluster.candidate_pool_size) |
1145 | e623dbe3 | Guido Trotter | return (mc_now, mc_should, mc_max)
|
1146 | ec0292f1 | Iustin Pop | |
1147 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1148 | 23f06b2b | Iustin Pop | def GetMasterCandidateStats(self, exceptions=None): |
1149 | ec0292f1 | Iustin Pop | """Get the number of current and maximum possible candidates.
|
1150 | ec0292f1 | Iustin Pop |
|
1151 | ec0292f1 | Iustin Pop | This is just a wrapper over L{_UnlockedGetMasterCandidateStats}.
|
1152 | ec0292f1 | Iustin Pop |
|
1153 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1154 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1155 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1156 | ec0292f1 | Iustin Pop | @return: tuple of (current, max)
|
1157 | ec0292f1 | Iustin Pop |
|
1158 | ec0292f1 | Iustin Pop | """
|
1159 | 23f06b2b | Iustin Pop | return self._UnlockedGetMasterCandidateStats(exceptions) |
1160 | ec0292f1 | Iustin Pop | |
1161 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
1162 | 44485f49 | Guido Trotter | def MaintainCandidatePool(self, exceptions): |
1163 | ec0292f1 | Iustin Pop | """Try to grow the candidate pool to the desired size.
|
1164 | ec0292f1 | Iustin Pop |
|
1165 | 44485f49 | Guido Trotter | @type exceptions: list
|
1166 | 44485f49 | Guido Trotter | @param exceptions: if passed, list of nodes that should be ignored
|
1167 | ec0292f1 | Iustin Pop | @rtype: list
|
1168 | ee513a66 | Iustin Pop | @return: list with the adjusted nodes (L{objects.Node} instances)
|
1169 | ec0292f1 | Iustin Pop |
|
1170 | ec0292f1 | Iustin Pop | """
|
1171 | 44485f49 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats(exceptions)
|
1172 | ec0292f1 | Iustin Pop | mod_list = [] |
1173 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
1174 | ec0292f1 | Iustin Pop | node_list = self._config_data.nodes.keys()
|
1175 | ec0292f1 | Iustin Pop | random.shuffle(node_list) |
1176 | ec0292f1 | Iustin Pop | for name in node_list: |
1177 | ec0292f1 | Iustin Pop | if mc_now >= mc_max:
|
1178 | ec0292f1 | Iustin Pop | break
|
1179 | ec0292f1 | Iustin Pop | node = self._config_data.nodes[name]
|
1180 | 44485f49 | Guido Trotter | if (node.master_candidate or node.offline or node.drained or |
1181 | 44485f49 | Guido Trotter | node.name in exceptions):
|
1182 | ec0292f1 | Iustin Pop | continue
|
1183 | ee513a66 | Iustin Pop | mod_list.append(node) |
1184 | ec0292f1 | Iustin Pop | node.master_candidate = True
|
1185 | ec0292f1 | Iustin Pop | node.serial_no += 1
|
1186 | ec0292f1 | Iustin Pop | mc_now += 1
|
1187 | ec0292f1 | Iustin Pop | if mc_now != mc_max:
|
1188 | ec0292f1 | Iustin Pop | # this should not happen
|
1189 | ec0292f1 | Iustin Pop | logging.warning("Warning: MaintainCandidatePool didn't manage to"
|
1190 | ec0292f1 | Iustin Pop | " fill the candidate pool (%d/%d)", mc_now, mc_max)
|
1191 | ec0292f1 | Iustin Pop | if mod_list:
|
1192 | ec0292f1 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1193 | ec0292f1 | Iustin Pop | self._WriteConfig()
|
1194 | ec0292f1 | Iustin Pop | |
1195 | ec0292f1 | Iustin Pop | return mod_list
|
1196 | ec0292f1 | Iustin Pop | |
1197 | a8083063 | Iustin Pop | def _BumpSerialNo(self): |
1198 | a8083063 | Iustin Pop | """Bump up the serial number of the config.
|
1199 | a8083063 | Iustin Pop |
|
1200 | a8083063 | Iustin Pop | """
|
1201 | 9d38c6e1 | Iustin Pop | self._config_data.serial_no += 1 |
1202 | d693c864 | Iustin Pop | self._config_data.mtime = time.time()
|
1203 | a8083063 | Iustin Pop | |
1204 | 76d5d3a3 | Iustin Pop | def _AllUUIDObjects(self): |
1205 | 76d5d3a3 | Iustin Pop | """Returns all objects with uuid attributes.
|
1206 | 76d5d3a3 | Iustin Pop |
|
1207 | 76d5d3a3 | Iustin Pop | """
|
1208 | 76d5d3a3 | Iustin Pop | return (self._config_data.instances.values() + |
1209 | 76d5d3a3 | Iustin Pop | self._config_data.nodes.values() +
|
1210 | 76d5d3a3 | Iustin Pop | [self._config_data.cluster])
|
1211 | 76d5d3a3 | Iustin Pop | |
1212 | a8083063 | Iustin Pop | def _OpenConfig(self): |
1213 | a8083063 | Iustin Pop | """Read the config data from disk.
|
1214 | a8083063 | Iustin Pop |
|
1215 | a8083063 | Iustin Pop | """
|
1216 | 13998ef2 | Michael Hanselmann | raw_data = utils.ReadFile(self._cfg_file)
|
1217 | 13998ef2 | Michael Hanselmann | |
1218 | a8083063 | Iustin Pop | try:
|
1219 | 13998ef2 | Michael Hanselmann | data = objects.ConfigData.FromDict(serializer.Load(raw_data)) |
1220 | 13998ef2 | Michael Hanselmann | except Exception, err: |
1221 | 13998ef2 | Michael Hanselmann | raise errors.ConfigurationError(err)
|
1222 | 5b263ed7 | Michael Hanselmann | |
1223 | 5b263ed7 | Michael Hanselmann | # Make sure the configuration has the right version
|
1224 | 5b263ed7 | Michael Hanselmann | _ValidateConfig(data) |
1225 | 5b263ed7 | Michael Hanselmann | |
1226 | a8083063 | Iustin Pop | if (not hasattr(data, 'cluster') or |
1227 | 243cdbcc | Michael Hanselmann | not hasattr(data.cluster, 'rsahostkeypub')): |
1228 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Incomplete configuration" |
1229 | 243cdbcc | Michael Hanselmann | " (missing cluster.rsahostkeypub)")
|
1230 | 90d726a8 | Iustin Pop | |
1231 | 90d726a8 | Iustin Pop | # Upgrade configuration if needed
|
1232 | 90d726a8 | Iustin Pop | data.UpgradeConfig() |
1233 | 90d726a8 | Iustin Pop | |
1234 | a8083063 | Iustin Pop | self._config_data = data
|
1235 | 3c7f6c44 | Iustin Pop | # reset the last serial as -1 so that the next write will cause
|
1236 | 0779e3aa | Iustin Pop | # ssconf update
|
1237 | 0779e3aa | Iustin Pop | self._last_cluster_serial = -1 |
1238 | a8083063 | Iustin Pop | |
1239 | 76d5d3a3 | Iustin Pop | # And finally run our (custom) config upgrade sequence
|
1240 | 76d5d3a3 | Iustin Pop | self._UpgradeConfig()
|
1241 | 76d5d3a3 | Iustin Pop | |
1242 | 76d5d3a3 | Iustin Pop | def _UpgradeConfig(self): |
1243 | 76d5d3a3 | Iustin Pop | """Run upgrade steps that cannot be done purely in the objects.
|
1244 | 76d5d3a3 | Iustin Pop |
|
1245 | 76d5d3a3 | Iustin Pop | This is because some data elements need uniqueness across the
|
1246 | 76d5d3a3 | Iustin Pop | whole configuration, etc.
|
1247 | 76d5d3a3 | Iustin Pop |
|
1248 | 111c4e2f | Guido Trotter | @warning: this function will call L{_WriteConfig()}, but also
|
1249 | 111c4e2f | Guido Trotter | L{DropECReservations} so it needs to be called only from a
|
1250 | 111c4e2f | Guido Trotter | "safe" place (the constructor). If one wanted to call it with
|
1251 | 111c4e2f | Guido Trotter | the lock held, a DropECReservationUnlocked would need to be
|
1252 | 111c4e2f | Guido Trotter | created first, to avoid causing deadlock.
|
1253 | 76d5d3a3 | Iustin Pop |
|
1254 | 76d5d3a3 | Iustin Pop | """
|
1255 | 76d5d3a3 | Iustin Pop | modified = False
|
1256 | 76d5d3a3 | Iustin Pop | for item in self._AllUUIDObjects(): |
1257 | 76d5d3a3 | Iustin Pop | if item.uuid is None: |
1258 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(_UPGRADE_CONFIG_JID)
|
1259 | 76d5d3a3 | Iustin Pop | modified = True
|
1260 | 76d5d3a3 | Iustin Pop | if modified:
|
1261 | 76d5d3a3 | Iustin Pop | self._WriteConfig()
|
1262 | 4fae38c5 | Guido Trotter | # This is ok even if it acquires the internal lock, as _UpgradeConfig is
|
1263 | 4fae38c5 | Guido Trotter | # only called at config init time, without the lock held
|
1264 | 4fae38c5 | Guido Trotter | self.DropECReservations(_UPGRADE_CONFIG_JID)
|
1265 | 4fae38c5 | Guido Trotter | |
1266 | a4eae71f | Michael Hanselmann | def _DistributeConfig(self, feedback_fn): |
1267 | a8083063 | Iustin Pop | """Distribute the configuration to the other nodes.
|
1268 | a8083063 | Iustin Pop |
|
1269 | a8083063 | Iustin Pop | Currently, this only copies the configuration file. In the future,
|
1270 | a8083063 | Iustin Pop | it could be used to encapsulate the 2/3-phase update mechanism.
|
1271 | a8083063 | Iustin Pop |
|
1272 | a8083063 | Iustin Pop | """
|
1273 | a8083063 | Iustin Pop | if self._offline: |
1274 | a8083063 | Iustin Pop | return True |
1275 | a4eae71f | Michael Hanselmann | |
1276 | a8083063 | Iustin Pop | bad = False
|
1277 | a8083063 | Iustin Pop | |
1278 | 6a5b8b4b | Iustin Pop | node_list = [] |
1279 | 6a5b8b4b | Iustin Pop | addr_list = [] |
1280 | 6a5b8b4b | Iustin Pop | myhostname = self._my_hostname
|
1281 | 6b294c53 | Iustin Pop | # we can skip checking whether _UnlockedGetNodeInfo returns None
|
1282 | 6b294c53 | Iustin Pop | # since the node list comes from _UnlocketGetNodeList, and we are
|
1283 | 6b294c53 | Iustin Pop | # called with the lock held, so no modifications should take place
|
1284 | 6b294c53 | Iustin Pop | # in between
|
1285 | 6a5b8b4b | Iustin Pop | for node_name in self._UnlockedGetNodeList(): |
1286 | 6a5b8b4b | Iustin Pop | if node_name == myhostname:
|
1287 | 6a5b8b4b | Iustin Pop | continue
|
1288 | 6a5b8b4b | Iustin Pop | node_info = self._UnlockedGetNodeInfo(node_name)
|
1289 | 6a5b8b4b | Iustin Pop | if not node_info.master_candidate: |
1290 | 6a5b8b4b | Iustin Pop | continue
|
1291 | 6a5b8b4b | Iustin Pop | node_list.append(node_info.name) |
1292 | 6a5b8b4b | Iustin Pop | addr_list.append(node_info.primary_ip) |
1293 | 6b294c53 | Iustin Pop | |
1294 | 6a5b8b4b | Iustin Pop | result = rpc.RpcRunner.call_upload_file(node_list, self._cfg_file,
|
1295 | 6a5b8b4b | Iustin Pop | address_list=addr_list) |
1296 | 1b54fc6c | Guido Trotter | for to_node, to_result in result.items(): |
1297 | 3cebe102 | Michael Hanselmann | msg = to_result.fail_msg |
1298 | 1b54fc6c | Guido Trotter | if msg:
|
1299 | 1b54fc6c | Guido Trotter | msg = ("Copy of file %s to node %s failed: %s" %
|
1300 | dd7db360 | Iustin Pop | (self._cfg_file, to_node, msg))
|
1301 | 1b54fc6c | Guido Trotter | logging.error(msg) |
1302 | a4eae71f | Michael Hanselmann | |
1303 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1304 | a4eae71f | Michael Hanselmann | feedback_fn(msg) |
1305 | a4eae71f | Michael Hanselmann | |
1306 | a8083063 | Iustin Pop | bad = True
|
1307 | a4eae71f | Michael Hanselmann | |
1308 | a8083063 | Iustin Pop | return not bad |
1309 | a8083063 | Iustin Pop | |
1310 | a4eae71f | Michael Hanselmann | def _WriteConfig(self, destination=None, feedback_fn=None): |
1311 | a8083063 | Iustin Pop | """Write the configuration data to persistent storage.
|
1312 | a8083063 | Iustin Pop |
|
1313 | a8083063 | Iustin Pop | """
|
1314 | a4eae71f | Michael Hanselmann | assert feedback_fn is None or callable(feedback_fn) |
1315 | a4eae71f | Michael Hanselmann | |
1316 | d2231b8c | Iustin Pop | # Warn on config errors, but don't abort the save - the
|
1317 | d2231b8c | Iustin Pop | # configuration has already been modified, and we can't revert;
|
1318 | d2231b8c | Iustin Pop | # the best we can do is to warn the user and save as is, leaving
|
1319 | d2231b8c | Iustin Pop | # recovery to the user
|
1320 | 4a89c54a | Iustin Pop | config_errors = self._UnlockedVerifyConfig()
|
1321 | 4a89c54a | Iustin Pop | if config_errors:
|
1322 | d2231b8c | Iustin Pop | errmsg = ("Configuration data is not consistent: %s" %
|
1323 | 1f864b60 | Iustin Pop | (utils.CommaJoin(config_errors))) |
1324 | d2231b8c | Iustin Pop | logging.critical(errmsg) |
1325 | d2231b8c | Iustin Pop | if feedback_fn:
|
1326 | d2231b8c | Iustin Pop | feedback_fn(errmsg) |
1327 | d2231b8c | Iustin Pop | |
1328 | a8083063 | Iustin Pop | if destination is None: |
1329 | a8083063 | Iustin Pop | destination = self._cfg_file
|
1330 | a8083063 | Iustin Pop | self._BumpSerialNo()
|
1331 | 8d14b30d | Iustin Pop | txt = serializer.Dump(self._config_data.ToDict())
|
1332 | 13998ef2 | Michael Hanselmann | |
1333 | 13998ef2 | Michael Hanselmann | utils.WriteFile(destination, data=txt) |
1334 | 13998ef2 | Michael Hanselmann | |
1335 | 14e15659 | Iustin Pop | self.write_count += 1 |
1336 | 3d3a04bc | Iustin Pop | |
1337 | f56618e0 | Iustin Pop | # and redistribute the config file to master candidates
|
1338 | a4eae71f | Michael Hanselmann | self._DistributeConfig(feedback_fn)
|
1339 | a8083063 | Iustin Pop | |
1340 | 54d1a06e | Michael Hanselmann | # Write ssconf files on all nodes (including locally)
|
1341 | 0779e3aa | Iustin Pop | if self._last_cluster_serial < self._config_data.cluster.serial_no: |
1342 | d9a855f1 | Michael Hanselmann | if not self._offline: |
1343 | cd34faf2 | Michael Hanselmann | result = rpc.RpcRunner.call_write_ssconf_files( |
1344 | 6819dc49 | Iustin Pop | self._UnlockedGetOnlineNodeList(),
|
1345 | e1e75d00 | Iustin Pop | self._UnlockedGetSsconfValues())
|
1346 | a4eae71f | Michael Hanselmann | |
1347 | e1e75d00 | Iustin Pop | for nname, nresu in result.items(): |
1348 | 3cebe102 | Michael Hanselmann | msg = nresu.fail_msg |
1349 | e1e75d00 | Iustin Pop | if msg:
|
1350 | a4eae71f | Michael Hanselmann | errmsg = ("Error while uploading ssconf files to"
|
1351 | a4eae71f | Michael Hanselmann | " node %s: %s" % (nname, msg))
|
1352 | a4eae71f | Michael Hanselmann | logging.warning(errmsg) |
1353 | a4eae71f | Michael Hanselmann | |
1354 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1355 | a4eae71f | Michael Hanselmann | feedback_fn(errmsg) |
1356 | a4eae71f | Michael Hanselmann | |
1357 | 0779e3aa | Iustin Pop | self._last_cluster_serial = self._config_data.cluster.serial_no |
1358 | 54d1a06e | Michael Hanselmann | |
1359 | 03d1dba2 | Michael Hanselmann | def _UnlockedGetSsconfValues(self): |
1360 | 054596f0 | Iustin Pop | """Return the values needed by ssconf.
|
1361 | 054596f0 | Iustin Pop |
|
1362 | 054596f0 | Iustin Pop | @rtype: dict
|
1363 | 054596f0 | Iustin Pop | @return: a dictionary with keys the ssconf names and values their
|
1364 | 054596f0 | Iustin Pop | associated value
|
1365 | 054596f0 | Iustin Pop |
|
1366 | 054596f0 | Iustin Pop | """
|
1367 | a3316e4a | Iustin Pop | fn = "\n".join
|
1368 | 81a49123 | Iustin Pop | instance_names = utils.NiceSort(self._UnlockedGetInstanceList())
|
1369 | a3316e4a | Iustin Pop | node_names = utils.NiceSort(self._UnlockedGetNodeList())
|
1370 | a3316e4a | Iustin Pop | node_info = [self._UnlockedGetNodeInfo(name) for name in node_names] |
1371 | c3029d0a | Luca Bigliardi | node_pri_ips = ["%s %s" % (ninfo.name, ninfo.primary_ip)
|
1372 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1373 | c3029d0a | Luca Bigliardi | node_snd_ips = ["%s %s" % (ninfo.name, ninfo.secondary_ip)
|
1374 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1375 | a3316e4a | Iustin Pop | |
1376 | 81a49123 | Iustin Pop | instance_data = fn(instance_names) |
1377 | a3316e4a | Iustin Pop | off_data = fn(node.name for node in node_info if node.offline) |
1378 | 81a49123 | Iustin Pop | on_data = fn(node.name for node in node_info if not node.offline) |
1379 | a3316e4a | Iustin Pop | mc_data = fn(node.name for node in node_info if node.master_candidate) |
1380 | 8113a52e | Luca Bigliardi | mc_ips_data = fn(node.primary_ip for node in node_info |
1381 | 8113a52e | Luca Bigliardi | if node.master_candidate)
|
1382 | a3316e4a | Iustin Pop | node_data = fn(node_names) |
1383 | f9780ccd | Luca Bigliardi | node_pri_ips_data = fn(node_pri_ips) |
1384 | f9780ccd | Luca Bigliardi | node_snd_ips_data = fn(node_snd_ips) |
1385 | f56618e0 | Iustin Pop | |
1386 | 054596f0 | Iustin Pop | cluster = self._config_data.cluster
|
1387 | 5d60b3bd | Iustin Pop | cluster_tags = fn(cluster.GetTags()) |
1388 | 4f7a6a10 | Iustin Pop | |
1389 | 4f7a6a10 | Iustin Pop | hypervisor_list = fn(cluster.enabled_hypervisors) |
1390 | 4f7a6a10 | Iustin Pop | |
1391 | 0fbae49a | Balazs Lecz | uid_pool = uidpool.FormatUidPool(cluster.uid_pool, separator="\n")
|
1392 | 0fbae49a | Balazs Lecz | |
1393 | 03d1dba2 | Michael Hanselmann | return {
|
1394 | 054596f0 | Iustin Pop | constants.SS_CLUSTER_NAME: cluster.cluster_name, |
1395 | 5d60b3bd | Iustin Pop | constants.SS_CLUSTER_TAGS: cluster_tags, |
1396 | 054596f0 | Iustin Pop | constants.SS_FILE_STORAGE_DIR: cluster.file_storage_dir, |
1397 | a3316e4a | Iustin Pop | constants.SS_MASTER_CANDIDATES: mc_data, |
1398 | 8113a52e | Luca Bigliardi | constants.SS_MASTER_CANDIDATES_IPS: mc_ips_data, |
1399 | 054596f0 | Iustin Pop | constants.SS_MASTER_IP: cluster.master_ip, |
1400 | 054596f0 | Iustin Pop | constants.SS_MASTER_NETDEV: cluster.master_netdev, |
1401 | 054596f0 | Iustin Pop | constants.SS_MASTER_NODE: cluster.master_node, |
1402 | a3316e4a | Iustin Pop | constants.SS_NODE_LIST: node_data, |
1403 | f9780ccd | Luca Bigliardi | constants.SS_NODE_PRIMARY_IPS: node_pri_ips_data, |
1404 | f9780ccd | Luca Bigliardi | constants.SS_NODE_SECONDARY_IPS: node_snd_ips_data, |
1405 | a3316e4a | Iustin Pop | constants.SS_OFFLINE_NODES: off_data, |
1406 | 81a49123 | Iustin Pop | constants.SS_ONLINE_NODES: on_data, |
1407 | 81a49123 | Iustin Pop | constants.SS_INSTANCE_LIST: instance_data, |
1408 | 8a113c7a | Iustin Pop | constants.SS_RELEASE_VERSION: constants.RELEASE_VERSION, |
1409 | 4f7a6a10 | Iustin Pop | constants.SS_HYPERVISOR_LIST: hypervisor_list, |
1410 | 5c465a95 | Iustin Pop | constants.SS_MAINTAIN_NODE_HEALTH: str(cluster.maintain_node_health),
|
1411 | 0fbae49a | Balazs Lecz | constants.SS_UID_POOL: uid_pool, |
1412 | 03d1dba2 | Michael Hanselmann | } |
1413 | 03d1dba2 | Michael Hanselmann | |
1414 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1415 | a8083063 | Iustin Pop | def GetVGName(self): |
1416 | a8083063 | Iustin Pop | """Return the volume group name.
|
1417 | a8083063 | Iustin Pop |
|
1418 | a8083063 | Iustin Pop | """
|
1419 | a8083063 | Iustin Pop | return self._config_data.cluster.volume_group_name |
1420 | a8083063 | Iustin Pop | |
1421 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1422 | 89ff8e15 | Manuel Franceschini | def SetVGName(self, vg_name): |
1423 | 89ff8e15 | Manuel Franceschini | """Set the volume group name.
|
1424 | 89ff8e15 | Manuel Franceschini |
|
1425 | 89ff8e15 | Manuel Franceschini | """
|
1426 | 2d4011cd | Manuel Franceschini | self._config_data.cluster.volume_group_name = vg_name
|
1427 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1428 | 89ff8e15 | Manuel Franceschini | self._WriteConfig()
|
1429 | 89ff8e15 | Manuel Franceschini | |
1430 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1431 | 9e33896b | Luca Bigliardi | def GetDRBDHelper(self): |
1432 | 9e33896b | Luca Bigliardi | """Return DRBD usermode helper.
|
1433 | 9e33896b | Luca Bigliardi |
|
1434 | 9e33896b | Luca Bigliardi | """
|
1435 | 9e33896b | Luca Bigliardi | return self._config_data.cluster.drbd_usermode_helper |
1436 | 9e33896b | Luca Bigliardi | |
1437 | 9e33896b | Luca Bigliardi | @locking.ssynchronized(_config_lock)
|
1438 | 9e33896b | Luca Bigliardi | def SetDRBDHelper(self, drbd_helper): |
1439 | 9e33896b | Luca Bigliardi | """Set DRBD usermode helper.
|
1440 | 9e33896b | Luca Bigliardi |
|
1441 | 9e33896b | Luca Bigliardi | """
|
1442 | 9e33896b | Luca Bigliardi | self._config_data.cluster.drbd_usermode_helper = drbd_helper
|
1443 | 9e33896b | Luca Bigliardi | self._config_data.cluster.serial_no += 1 |
1444 | 9e33896b | Luca Bigliardi | self._WriteConfig()
|
1445 | 9e33896b | Luca Bigliardi | |
1446 | 9e33896b | Luca Bigliardi | @locking.ssynchronized(_config_lock, shared=1) |
1447 | a8083063 | Iustin Pop | def GetMACPrefix(self): |
1448 | a8083063 | Iustin Pop | """Return the mac prefix.
|
1449 | a8083063 | Iustin Pop |
|
1450 | a8083063 | Iustin Pop | """
|
1451 | a8083063 | Iustin Pop | return self._config_data.cluster.mac_prefix |
1452 | 62779dd0 | Iustin Pop | |
1453 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1454 | 62779dd0 | Iustin Pop | def GetClusterInfo(self): |
1455 | 5bbd3f7f | Michael Hanselmann | """Returns information about the cluster
|
1456 | 62779dd0 | Iustin Pop |
|
1457 | c41eea6e | Iustin Pop | @rtype: L{objects.Cluster}
|
1458 | c41eea6e | Iustin Pop | @return: the cluster object
|
1459 | 62779dd0 | Iustin Pop |
|
1460 | 62779dd0 | Iustin Pop | """
|
1461 | 62779dd0 | Iustin Pop | return self._config_data.cluster |
1462 | e00fb268 | Iustin Pop | |
1463 | 51cb1581 | Luca Bigliardi | @locking.ssynchronized(_config_lock, shared=1) |
1464 | 51cb1581 | Luca Bigliardi | def HasAnyDiskOfType(self, dev_type): |
1465 | 51cb1581 | Luca Bigliardi | """Check if in there is at disk of the given type in the configuration.
|
1466 | 51cb1581 | Luca Bigliardi |
|
1467 | 51cb1581 | Luca Bigliardi | """
|
1468 | 51cb1581 | Luca Bigliardi | return self._config_data.HasAnyDiskOfType(dev_type) |
1469 | 51cb1581 | Luca Bigliardi | |
1470 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1471 | a4eae71f | Michael Hanselmann | def Update(self, target, feedback_fn): |
1472 | e00fb268 | Iustin Pop | """Notify function to be called after updates.
|
1473 | e00fb268 | Iustin Pop |
|
1474 | e00fb268 | Iustin Pop | This function must be called when an object (as returned by
|
1475 | e00fb268 | Iustin Pop | GetInstanceInfo, GetNodeInfo, GetCluster) has been updated and the
|
1476 | e00fb268 | Iustin Pop | caller wants the modifications saved to the backing store. Note
|
1477 | e00fb268 | Iustin Pop | that all modified objects will be saved, but the target argument
|
1478 | e00fb268 | Iustin Pop | is the one the caller wants to ensure that it's saved.
|
1479 | e00fb268 | Iustin Pop |
|
1480 | c41eea6e | Iustin Pop | @param target: an instance of either L{objects.Cluster},
|
1481 | c41eea6e | Iustin Pop | L{objects.Node} or L{objects.Instance} which is existing in
|
1482 | c41eea6e | Iustin Pop | the cluster
|
1483 | a4eae71f | Michael Hanselmann | @param feedback_fn: Callable feedback function
|
1484 | c41eea6e | Iustin Pop |
|
1485 | e00fb268 | Iustin Pop | """
|
1486 | e00fb268 | Iustin Pop | if self._config_data is None: |
1487 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Configuration file not read," |
1488 | 3ecf6786 | Iustin Pop | " cannot save.")
|
1489 | f34901f8 | Iustin Pop | update_serial = False
|
1490 | e00fb268 | Iustin Pop | if isinstance(target, objects.Cluster): |
1491 | e00fb268 | Iustin Pop | test = target == self._config_data.cluster
|
1492 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Node): |
1493 | e00fb268 | Iustin Pop | test = target in self._config_data.nodes.values() |
1494 | f34901f8 | Iustin Pop | update_serial = True
|
1495 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Instance): |
1496 | e00fb268 | Iustin Pop | test = target in self._config_data.instances.values() |
1497 | e00fb268 | Iustin Pop | else:
|
1498 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid object type (%s) passed to" |
1499 | 3ecf6786 | Iustin Pop | " ConfigWriter.Update" % type(target)) |
1500 | e00fb268 | Iustin Pop | if not test: |
1501 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Configuration updated since object" |
1502 | 3ecf6786 | Iustin Pop | " has been read or unknown object")
|
1503 | f34901f8 | Iustin Pop | target.serial_no += 1
|
1504 | d693c864 | Iustin Pop | target.mtime = now = time.time() |
1505 | f34901f8 | Iustin Pop | |
1506 | cff4c037 | Iustin Pop | if update_serial:
|
1507 | f34901f8 | Iustin Pop | # for node updates, we need to increase the cluster serial too
|
1508 | f34901f8 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1509 | d693c864 | Iustin Pop | self._config_data.cluster.mtime = now
|
1510 | b989e85d | Iustin Pop | |
1511 | 61cf6b5e | Iustin Pop | if isinstance(target, objects.Instance): |
1512 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(target.name)
|
1513 | 61cf6b5e | Iustin Pop | |
1514 | a4eae71f | Michael Hanselmann | self._WriteConfig(feedback_fn=feedback_fn)
|
1515 | 73064714 | Guido Trotter | |
1516 | 73064714 | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1517 | 73064714 | Guido Trotter | def DropECReservations(self, ec_id): |
1518 | 73064714 | Guido Trotter | """Drop per-execution-context reservations
|
1519 | 73064714 | Guido Trotter |
|
1520 | 73064714 | Guido Trotter | """
|
1521 | d8aee57e | Iustin Pop | for rm in self._all_rms: |
1522 | d8aee57e | Iustin Pop | rm.DropECReservations(ec_id) |