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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 | d367b66c | Manuel Franceschini | # pylint: disable-msg=R0904
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35 | d367b66c | Manuel Franceschini | # R0904: Too many public methods
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36 | d367b66c | Manuel Franceschini | |
37 | a8083063 | Iustin Pop | import os |
38 | a8083063 | Iustin Pop | import random |
39 | d8470559 | Michael Hanselmann | import logging |
40 | d693c864 | Iustin Pop | import time |
41 | a8083063 | Iustin Pop | |
42 | a8083063 | Iustin Pop | from ganeti import errors |
43 | f78ede4e | Guido Trotter | from ganeti import locking |
44 | a8083063 | Iustin Pop | from ganeti import utils |
45 | a8083063 | Iustin Pop | from ganeti import constants |
46 | a8083063 | Iustin Pop | from ganeti import rpc |
47 | a8083063 | Iustin Pop | from ganeti import objects |
48 | 8d14b30d | Iustin Pop | from ganeti import serializer |
49 | 0fbae49a | Balazs Lecz | from ganeti import uidpool |
50 | a744b676 | Manuel Franceschini | from ganeti import netutils |
51 | 243cdbcc | Michael Hanselmann | |
52 | 243cdbcc | Michael Hanselmann | |
53 | 7f93570a | Iustin Pop | _config_lock = locking.SharedLock("ConfigWriter")
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54 | f78ede4e | Guido Trotter | |
55 | 4fae38c5 | Guido Trotter | # job id used for resource management at config upgrade time
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56 | 8d9c3bef | Michael Hanselmann | _UPGRADE_CONFIG_JID = "jid-cfg-upgrade"
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57 | 4fae38c5 | Guido Trotter | |
58 | f78ede4e | Guido Trotter | |
59 | 5b263ed7 | Michael Hanselmann | def _ValidateConfig(data): |
60 | c41eea6e | Iustin Pop | """Verifies that a configuration objects looks valid.
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61 | c41eea6e | Iustin Pop |
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62 | c41eea6e | Iustin Pop | This only verifies the version of the configuration.
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63 | c41eea6e | Iustin Pop |
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64 | c41eea6e | Iustin Pop | @raise errors.ConfigurationError: if the version differs from what
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65 | c41eea6e | Iustin Pop | we expect
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66 | c41eea6e | Iustin Pop |
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67 | c41eea6e | Iustin Pop | """
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68 | 5b263ed7 | Michael Hanselmann | if data.version != constants.CONFIG_VERSION:
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69 | 243cdbcc | Michael Hanselmann | raise errors.ConfigurationError("Cluster configuration version" |
70 | 243cdbcc | Michael Hanselmann | " mismatch, got %s instead of %s" %
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71 | 5b263ed7 | Michael Hanselmann | (data.version, |
72 | 243cdbcc | Michael Hanselmann | constants.CONFIG_VERSION)) |
73 | a8083063 | Iustin Pop | |
74 | 319856a9 | Michael Hanselmann | |
75 | 013da361 | Guido Trotter | class TemporaryReservationManager: |
76 | 013da361 | Guido Trotter | """A temporary resource reservation manager.
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77 | 013da361 | Guido Trotter |
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78 | 013da361 | Guido Trotter | This is used to reserve resources in a job, before using them, making sure
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79 | 013da361 | Guido Trotter | other jobs cannot get them in the meantime.
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80 | 013da361 | Guido Trotter |
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81 | 013da361 | Guido Trotter | """
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82 | 013da361 | Guido Trotter | def __init__(self): |
83 | 013da361 | Guido Trotter | self._ec_reserved = {}
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84 | 013da361 | Guido Trotter | |
85 | 013da361 | Guido Trotter | def Reserved(self, resource): |
86 | 013da361 | Guido Trotter | for holder_reserved in self._ec_reserved.items(): |
87 | 013da361 | Guido Trotter | if resource in holder_reserved: |
88 | 013da361 | Guido Trotter | return True |
89 | 013da361 | Guido Trotter | return False |
90 | 013da361 | Guido Trotter | |
91 | 013da361 | Guido Trotter | def Reserve(self, ec_id, resource): |
92 | 013da361 | Guido Trotter | if self.Reserved(resource): |
93 | 013da361 | Guido Trotter | raise errors.ReservationError("Duplicate reservation for resource: %s." % |
94 | 013da361 | Guido Trotter | (resource)) |
95 | 013da361 | Guido Trotter | if ec_id not in self._ec_reserved: |
96 | 013da361 | Guido Trotter | self._ec_reserved[ec_id] = set([resource]) |
97 | 013da361 | Guido Trotter | else:
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98 | 013da361 | Guido Trotter | self._ec_reserved[ec_id].add(resource)
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99 | 013da361 | Guido Trotter | |
100 | 013da361 | Guido Trotter | def DropECReservations(self, ec_id): |
101 | 013da361 | Guido Trotter | if ec_id in self._ec_reserved: |
102 | 013da361 | Guido Trotter | del self._ec_reserved[ec_id] |
103 | 013da361 | Guido Trotter | |
104 | 013da361 | Guido Trotter | def GetReserved(self): |
105 | 013da361 | Guido Trotter | all_reserved = set()
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106 | 013da361 | Guido Trotter | for holder_reserved in self._ec_reserved.values(): |
107 | 013da361 | Guido Trotter | all_reserved.update(holder_reserved) |
108 | 013da361 | Guido Trotter | return all_reserved
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109 | 013da361 | Guido Trotter | |
110 | 013da361 | Guido Trotter | def Generate(self, existing, generate_one_fn, ec_id): |
111 | 013da361 | Guido Trotter | """Generate a new resource of this type
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112 | 013da361 | Guido Trotter |
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113 | 013da361 | Guido Trotter | """
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114 | 013da361 | Guido Trotter | assert callable(generate_one_fn) |
115 | 013da361 | Guido Trotter | |
116 | 013da361 | Guido Trotter | all_elems = self.GetReserved()
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117 | 013da361 | Guido Trotter | all_elems.update(existing) |
118 | 013da361 | Guido Trotter | retries = 64
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119 | 013da361 | Guido Trotter | while retries > 0: |
120 | 013da361 | Guido Trotter | new_resource = generate_one_fn() |
121 | 013da361 | Guido Trotter | if new_resource is not None and new_resource not in all_elems: |
122 | 013da361 | Guido Trotter | break
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123 | 013da361 | Guido Trotter | else:
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124 | 013da361 | Guido Trotter | raise errors.ConfigurationError("Not able generate new resource" |
125 | 013da361 | Guido Trotter | " (last tried: %s)" % new_resource)
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126 | 013da361 | Guido Trotter | self.Reserve(ec_id, new_resource)
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127 | 013da361 | Guido Trotter | return new_resource
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128 | 013da361 | Guido Trotter | |
129 | 013da361 | Guido Trotter | |
130 | a8083063 | Iustin Pop | class ConfigWriter: |
131 | 098c0958 | Michael Hanselmann | """The interface to the cluster configuration.
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132 | a8083063 | Iustin Pop |
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133 | d8aee57e | Iustin Pop | @ivar _temporary_lvs: reservation manager for temporary LVs
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134 | d8aee57e | Iustin Pop | @ivar _all_rms: a list of all temporary reservation managers
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135 | d8aee57e | Iustin Pop |
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136 | 098c0958 | Michael Hanselmann | """
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137 | a8083063 | Iustin Pop | def __init__(self, cfg_file=None, offline=False): |
138 | 14e15659 | Iustin Pop | self.write_count = 0 |
139 | f78ede4e | Guido Trotter | self._lock = _config_lock
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140 | a8083063 | Iustin Pop | self._config_data = None |
141 | a8083063 | Iustin Pop | self._offline = offline
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142 | a8083063 | Iustin Pop | if cfg_file is None: |
143 | a8083063 | Iustin Pop | self._cfg_file = constants.CLUSTER_CONF_FILE
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144 | a8083063 | Iustin Pop | else:
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145 | a8083063 | Iustin Pop | self._cfg_file = cfg_file
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146 | 4fae38c5 | Guido Trotter | self._temporary_ids = TemporaryReservationManager()
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147 | a81c53c9 | Iustin Pop | self._temporary_drbds = {}
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148 | 36b66e6e | Guido Trotter | self._temporary_macs = TemporaryReservationManager()
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149 | afa1386e | Guido Trotter | self._temporary_secrets = TemporaryReservationManager()
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150 | d8aee57e | Iustin Pop | self._temporary_lvs = TemporaryReservationManager()
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151 | d8aee57e | Iustin Pop | self._all_rms = [self._temporary_ids, self._temporary_macs, |
152 | d8aee57e | Iustin Pop | self._temporary_secrets, self._temporary_lvs] |
153 | 89e1fc26 | Iustin Pop | # Note: in order to prevent errors when resolving our name in
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154 | 89e1fc26 | Iustin Pop | # _DistributeConfig, we compute it here once and reuse it; it's
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155 | 89e1fc26 | Iustin Pop | # better to raise an error before starting to modify the config
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156 | 89e1fc26 | Iustin Pop | # file than after it was modified
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157 | b705c7a6 | Manuel Franceschini | self._my_hostname = netutils.Hostname.GetSysName()
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158 | 3c7f6c44 | Iustin Pop | self._last_cluster_serial = -1 |
159 | 3d3a04bc | Iustin Pop | self._OpenConfig()
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160 | a8083063 | Iustin Pop | |
161 | a8083063 | Iustin Pop | # this method needs to be static, so that we can call it on the class
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162 | a8083063 | Iustin Pop | @staticmethod
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163 | a8083063 | Iustin Pop | def IsCluster(): |
164 | a8083063 | Iustin Pop | """Check if the cluster is configured.
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165 | a8083063 | Iustin Pop |
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166 | a8083063 | Iustin Pop | """
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167 | a8083063 | Iustin Pop | return os.path.exists(constants.CLUSTER_CONF_FILE)
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168 | a8083063 | Iustin Pop | |
169 | 36b66e6e | Guido Trotter | def _GenerateOneMAC(self): |
170 | 36b66e6e | Guido Trotter | """Generate one mac address
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171 | 36b66e6e | Guido Trotter |
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172 | 36b66e6e | Guido Trotter | """
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173 | 36b66e6e | Guido Trotter | prefix = self._config_data.cluster.mac_prefix
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174 | 36b66e6e | Guido Trotter | byte1 = random.randrange(0, 256) |
175 | 36b66e6e | Guido Trotter | byte2 = random.randrange(0, 256) |
176 | 36b66e6e | Guido Trotter | byte3 = random.randrange(0, 256) |
177 | 36b66e6e | Guido Trotter | mac = "%s:%02x:%02x:%02x" % (prefix, byte1, byte2, byte3)
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178 | 36b66e6e | Guido Trotter | return mac
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179 | 36b66e6e | Guido Trotter | |
180 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
181 | 36b66e6e | Guido Trotter | def GenerateMAC(self, ec_id): |
182 | a8083063 | Iustin Pop | """Generate a MAC for an instance.
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183 | a8083063 | Iustin Pop |
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184 | a8083063 | Iustin Pop | This should check the current instances for duplicates.
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185 | a8083063 | Iustin Pop |
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186 | a8083063 | Iustin Pop | """
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187 | 36b66e6e | Guido Trotter | existing = self._AllMACs()
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188 | 36b66e6e | Guido Trotter | return self._temporary_ids.Generate(existing, self._GenerateOneMAC, ec_id) |
189 | a8083063 | Iustin Pop | |
190 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
191 | 36b66e6e | Guido Trotter | def ReserveMAC(self, mac, ec_id): |
192 | 36b66e6e | Guido Trotter | """Reserve a MAC for an instance.
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193 | 1862d460 | Alexander Schreiber |
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194 | 1862d460 | Alexander Schreiber | This only checks instances managed by this cluster, it does not
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195 | 1862d460 | Alexander Schreiber | check for potential collisions elsewhere.
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196 | 1862d460 | Alexander Schreiber |
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197 | 1862d460 | Alexander Schreiber | """
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198 | 1862d460 | Alexander Schreiber | all_macs = self._AllMACs()
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199 | 36b66e6e | Guido Trotter | if mac in all_macs: |
200 | 36b66e6e | Guido Trotter | raise errors.ReservationError("mac already in use") |
201 | 36b66e6e | Guido Trotter | else:
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202 | 36b66e6e | Guido Trotter | self._temporary_macs.Reserve(mac, ec_id)
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203 | 1862d460 | Alexander Schreiber | |
204 | f9518d38 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
205 | d8aee57e | Iustin Pop | def ReserveLV(self, lv_name, ec_id): |
206 | d8aee57e | Iustin Pop | """Reserve an VG/LV pair for an instance.
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207 | d8aee57e | Iustin Pop |
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208 | d8aee57e | Iustin Pop | @type lv_name: string
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209 | d8aee57e | Iustin Pop | @param lv_name: the logical volume name to reserve
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210 | d8aee57e | Iustin Pop |
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211 | d8aee57e | Iustin Pop | """
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212 | d8aee57e | Iustin Pop | all_lvs = self._AllLVs()
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213 | d8aee57e | Iustin Pop | if lv_name in all_lvs: |
214 | d8aee57e | Iustin Pop | raise errors.ReservationError("LV already in use") |
215 | d8aee57e | Iustin Pop | else:
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216 | d8aee57e | Iustin Pop | self._temporary_lvs.Reserve(lv_name, ec_id)
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217 | d8aee57e | Iustin Pop | |
218 | d8aee57e | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
219 | afa1386e | Guido Trotter | def GenerateDRBDSecret(self, ec_id): |
220 | f9518d38 | Iustin Pop | """Generate a DRBD secret.
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221 | f9518d38 | Iustin Pop |
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222 | f9518d38 | Iustin Pop | This checks the current disks for duplicates.
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223 | f9518d38 | Iustin Pop |
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224 | f9518d38 | Iustin Pop | """
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225 | afa1386e | Guido Trotter | return self._temporary_secrets.Generate(self._AllDRBDSecrets(), |
226 | afa1386e | Guido Trotter | utils.GenerateSecret, |
227 | afa1386e | Guido Trotter | ec_id) |
228 | 8d9c3bef | Michael Hanselmann | |
229 | 34e54ebc | Iustin Pop | def _AllLVs(self): |
230 | 923b1523 | Iustin Pop | """Compute the list of all LVs.
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231 | 923b1523 | Iustin Pop |
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232 | 923b1523 | Iustin Pop | """
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233 | 923b1523 | Iustin Pop | lvnames = set()
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234 | 923b1523 | Iustin Pop | for instance in self._config_data.instances.values(): |
235 | 923b1523 | Iustin Pop | node_data = instance.MapLVsByNode() |
236 | 923b1523 | Iustin Pop | for lv_list in node_data.values(): |
237 | 923b1523 | Iustin Pop | lvnames.update(lv_list) |
238 | 923b1523 | Iustin Pop | return lvnames
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239 | 923b1523 | Iustin Pop | |
240 | 34e54ebc | Iustin Pop | def _AllIDs(self, include_temporary): |
241 | 34e54ebc | Iustin Pop | """Compute the list of all UUIDs and names we have.
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242 | 34e54ebc | Iustin Pop |
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243 | 34e54ebc | Iustin Pop | @type include_temporary: boolean
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244 | 34e54ebc | Iustin Pop | @param include_temporary: whether to include the _temporary_ids set
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245 | 34e54ebc | Iustin Pop | @rtype: set
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246 | 34e54ebc | Iustin Pop | @return: a set of IDs
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247 | 34e54ebc | Iustin Pop |
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248 | 34e54ebc | Iustin Pop | """
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249 | 34e54ebc | Iustin Pop | existing = set()
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250 | 34e54ebc | Iustin Pop | if include_temporary:
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251 | 4fae38c5 | Guido Trotter | existing.update(self._temporary_ids.GetReserved())
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252 | 34e54ebc | Iustin Pop | existing.update(self._AllLVs())
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253 | 34e54ebc | Iustin Pop | existing.update(self._config_data.instances.keys())
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254 | 34e54ebc | Iustin Pop | existing.update(self._config_data.nodes.keys())
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255 | 76d5d3a3 | Iustin Pop | existing.update([i.uuid for i in self._AllUUIDObjects() if i.uuid]) |
256 | 34e54ebc | Iustin Pop | return existing
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257 | 34e54ebc | Iustin Pop | |
258 | 4fae38c5 | Guido Trotter | def _GenerateUniqueID(self, ec_id): |
259 | 430b923c | Iustin Pop | """Generate an unique UUID.
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260 | 923b1523 | Iustin Pop |
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261 | 923b1523 | Iustin Pop | This checks the current node, instances and disk names for
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262 | 923b1523 | Iustin Pop | duplicates.
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263 | 923b1523 | Iustin Pop |
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264 | c41eea6e | Iustin Pop | @rtype: string
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265 | c41eea6e | Iustin Pop | @return: the unique id
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266 | 923b1523 | Iustin Pop |
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267 | 923b1523 | Iustin Pop | """
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268 | 4fae38c5 | Guido Trotter | existing = self._AllIDs(include_temporary=False) |
269 | 4fae38c5 | Guido Trotter | return self._temporary_ids.Generate(existing, utils.NewUUID, ec_id) |
270 | 923b1523 | Iustin Pop | |
271 | 430b923c | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
272 | 4fae38c5 | Guido Trotter | def GenerateUniqueID(self, ec_id): |
273 | 430b923c | Iustin Pop | """Generate an unique ID.
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274 | 430b923c | Iustin Pop |
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275 | 430b923c | Iustin Pop | This is just a wrapper over the unlocked version.
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276 | 430b923c | Iustin Pop |
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277 | 4fae38c5 | Guido Trotter | @type ec_id: string
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278 | 4fae38c5 | Guido Trotter | @param ec_id: unique id for the job to reserve the id to
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279 | 34d657ba | Iustin Pop |
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280 | 34d657ba | Iustin Pop | """
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281 | 4fae38c5 | Guido Trotter | return self._GenerateUniqueID(ec_id) |
282 | 34d657ba | Iustin Pop | |
283 | a8083063 | Iustin Pop | def _AllMACs(self): |
284 | a8083063 | Iustin Pop | """Return all MACs present in the config.
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285 | a8083063 | Iustin Pop |
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286 | c41eea6e | Iustin Pop | @rtype: list
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287 | c41eea6e | Iustin Pop | @return: the list of all MACs
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288 | c41eea6e | Iustin Pop |
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289 | a8083063 | Iustin Pop | """
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290 | a8083063 | Iustin Pop | result = [] |
291 | a8083063 | Iustin Pop | for instance in self._config_data.instances.values(): |
292 | a8083063 | Iustin Pop | for nic in instance.nics: |
293 | a8083063 | Iustin Pop | result.append(nic.mac) |
294 | a8083063 | Iustin Pop | |
295 | a8083063 | Iustin Pop | return result
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296 | a8083063 | Iustin Pop | |
297 | f9518d38 | Iustin Pop | def _AllDRBDSecrets(self): |
298 | f9518d38 | Iustin Pop | """Return all DRBD secrets present in the config.
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299 | f9518d38 | Iustin Pop |
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300 | c41eea6e | Iustin Pop | @rtype: list
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301 | c41eea6e | Iustin Pop | @return: the list of all DRBD secrets
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302 | c41eea6e | Iustin Pop |
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303 | f9518d38 | Iustin Pop | """
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304 | f9518d38 | Iustin Pop | def helper(disk, result): |
305 | f9518d38 | Iustin Pop | """Recursively gather secrets from this disk."""
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306 | f9518d38 | Iustin Pop | if disk.dev_type == constants.DT_DRBD8:
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307 | f9518d38 | Iustin Pop | result.append(disk.logical_id[5])
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308 | f9518d38 | Iustin Pop | if disk.children:
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309 | f9518d38 | Iustin Pop | for child in disk.children: |
310 | f9518d38 | Iustin Pop | helper(child, result) |
311 | f9518d38 | Iustin Pop | |
312 | f9518d38 | Iustin Pop | result = [] |
313 | f9518d38 | Iustin Pop | for instance in self._config_data.instances.values(): |
314 | f9518d38 | Iustin Pop | for disk in instance.disks: |
315 | f9518d38 | Iustin Pop | helper(disk, result) |
316 | f9518d38 | Iustin Pop | |
317 | f9518d38 | Iustin Pop | return result
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318 | f9518d38 | Iustin Pop | |
319 | 4b98ac29 | Iustin Pop | def _CheckDiskIDs(self, disk, l_ids, p_ids): |
320 | 4b98ac29 | Iustin Pop | """Compute duplicate disk IDs
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321 | 4b98ac29 | Iustin Pop |
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322 | 4b98ac29 | Iustin Pop | @type disk: L{objects.Disk}
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323 | 4b98ac29 | Iustin Pop | @param disk: the disk at which to start searching
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324 | 4b98ac29 | Iustin Pop | @type l_ids: list
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325 | 4b98ac29 | Iustin Pop | @param l_ids: list of current logical ids
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326 | 4b98ac29 | Iustin Pop | @type p_ids: list
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327 | 4b98ac29 | Iustin Pop | @param p_ids: list of current physical ids
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328 | 4b98ac29 | Iustin Pop | @rtype: list
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329 | 4b98ac29 | Iustin Pop | @return: a list of error messages
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330 | 4b98ac29 | Iustin Pop |
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331 | 4b98ac29 | Iustin Pop | """
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332 | 4b98ac29 | Iustin Pop | result = [] |
333 | 25ae22e4 | Iustin Pop | if disk.logical_id is not None: |
334 | 25ae22e4 | Iustin Pop | if disk.logical_id in l_ids: |
335 | 25ae22e4 | Iustin Pop | result.append("duplicate logical id %s" % str(disk.logical_id)) |
336 | 25ae22e4 | Iustin Pop | else:
|
337 | 25ae22e4 | Iustin Pop | l_ids.append(disk.logical_id) |
338 | 25ae22e4 | Iustin Pop | if disk.physical_id is not None: |
339 | 25ae22e4 | Iustin Pop | if disk.physical_id in p_ids: |
340 | 25ae22e4 | Iustin Pop | result.append("duplicate physical id %s" % str(disk.physical_id)) |
341 | 25ae22e4 | Iustin Pop | else:
|
342 | 25ae22e4 | Iustin Pop | p_ids.append(disk.physical_id) |
343 | 4b98ac29 | Iustin Pop | |
344 | 4b98ac29 | Iustin Pop | if disk.children:
|
345 | 4b98ac29 | Iustin Pop | for child in disk.children: |
346 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(child, l_ids, p_ids))
|
347 | 4b98ac29 | Iustin Pop | return result
|
348 | 4b98ac29 | Iustin Pop | |
349 | 4a89c54a | Iustin Pop | def _UnlockedVerifyConfig(self): |
350 | a8efbb40 | Iustin Pop | """Verify function.
|
351 | a8efbb40 | Iustin Pop |
|
352 | 4a89c54a | Iustin Pop | @rtype: list
|
353 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
354 | 4a89c54a | Iustin Pop | configuration errors
|
355 | 4a89c54a | Iustin Pop |
|
356 | a8083063 | Iustin Pop | """
|
357 | a8083063 | Iustin Pop | result = [] |
358 | a8083063 | Iustin Pop | seen_macs = [] |
359 | 48ce9fd9 | Iustin Pop | ports = {} |
360 | a8083063 | Iustin Pop | data = self._config_data
|
361 | 4b98ac29 | Iustin Pop | seen_lids = [] |
362 | 4b98ac29 | Iustin Pop | seen_pids = [] |
363 | 9a5fba23 | Guido Trotter | |
364 | 9a5fba23 | Guido Trotter | # global cluster checks
|
365 | 9a5fba23 | Guido Trotter | if not data.cluster.enabled_hypervisors: |
366 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors list doesn't have any entries")
|
367 | 9a5fba23 | Guido Trotter | invalid_hvs = set(data.cluster.enabled_hypervisors) - constants.HYPER_TYPES
|
368 | 9a5fba23 | Guido Trotter | if invalid_hvs:
|
369 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors contains invalid entries: %s" %
|
370 | 9a5fba23 | Guido Trotter | invalid_hvs) |
371 | 9f3ac970 | Iustin Pop | missing_hvp = (set(data.cluster.enabled_hypervisors) -
|
372 | 9f3ac970 | Iustin Pop | set(data.cluster.hvparams.keys()))
|
373 | 9f3ac970 | Iustin Pop | if missing_hvp:
|
374 | 9f3ac970 | Iustin Pop | result.append("hypervisor parameters missing for the enabled"
|
375 | 9f3ac970 | Iustin Pop | " hypervisor(s) %s" % utils.CommaJoin(missing_hvp))
|
376 | 9a5fba23 | Guido Trotter | |
377 | 9a5fba23 | Guido Trotter | if data.cluster.master_node not in data.nodes: |
378 | 9a5fba23 | Guido Trotter | result.append("cluster has invalid primary node '%s'" %
|
379 | 9a5fba23 | Guido Trotter | data.cluster.master_node) |
380 | 9a5fba23 | Guido Trotter | |
381 | 9a5fba23 | Guido Trotter | # per-instance checks
|
382 | a8083063 | Iustin Pop | for instance_name in data.instances: |
383 | a8083063 | Iustin Pop | instance = data.instances[instance_name] |
384 | 81196341 | Iustin Pop | if instance.name != instance_name:
|
385 | 81196341 | Iustin Pop | result.append("instance '%s' is indexed by wrong name '%s'" %
|
386 | 81196341 | Iustin Pop | (instance.name, instance_name)) |
387 | a8083063 | Iustin Pop | if instance.primary_node not in data.nodes: |
388 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid primary node '%s'" %
|
389 | a8083063 | Iustin Pop | (instance_name, instance.primary_node)) |
390 | a8083063 | Iustin Pop | for snode in instance.secondary_nodes: |
391 | a8083063 | Iustin Pop | if snode not in data.nodes: |
392 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid secondary node '%s'" %
|
393 | a8083063 | Iustin Pop | (instance_name, snode)) |
394 | a8083063 | Iustin Pop | for idx, nic in enumerate(instance.nics): |
395 | a8083063 | Iustin Pop | if nic.mac in seen_macs: |
396 | 8522ceeb | Iustin Pop | result.append("instance '%s' has NIC %d mac %s duplicate" %
|
397 | a8083063 | Iustin Pop | (instance_name, idx, nic.mac)) |
398 | a8083063 | Iustin Pop | else:
|
399 | a8083063 | Iustin Pop | seen_macs.append(nic.mac) |
400 | 48ce9fd9 | Iustin Pop | |
401 | 48ce9fd9 | Iustin Pop | # gather the drbd ports for duplicate checks
|
402 | 48ce9fd9 | Iustin Pop | for dsk in instance.disks: |
403 | 48ce9fd9 | Iustin Pop | if dsk.dev_type in constants.LDS_DRBD: |
404 | 48ce9fd9 | Iustin Pop | tcp_port = dsk.logical_id[2]
|
405 | 48ce9fd9 | Iustin Pop | if tcp_port not in ports: |
406 | 48ce9fd9 | Iustin Pop | ports[tcp_port] = [] |
407 | 48ce9fd9 | Iustin Pop | ports[tcp_port].append((instance.name, "drbd disk %s" % dsk.iv_name))
|
408 | 48ce9fd9 | Iustin Pop | # gather network port reservation
|
409 | 48ce9fd9 | Iustin Pop | net_port = getattr(instance, "network_port", None) |
410 | 48ce9fd9 | Iustin Pop | if net_port is not None: |
411 | 48ce9fd9 | Iustin Pop | if net_port not in ports: |
412 | 48ce9fd9 | Iustin Pop | ports[net_port] = [] |
413 | 48ce9fd9 | Iustin Pop | ports[net_port].append((instance.name, "network port"))
|
414 | 48ce9fd9 | Iustin Pop | |
415 | 332d0e37 | Iustin Pop | # instance disk verify
|
416 | 332d0e37 | Iustin Pop | for idx, disk in enumerate(instance.disks): |
417 | 332d0e37 | Iustin Pop | result.extend(["instance '%s' disk %d error: %s" %
|
418 | 332d0e37 | Iustin Pop | (instance.name, idx, msg) for msg in disk.Verify()]) |
419 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(disk, seen_lids, seen_pids))
|
420 | 332d0e37 | Iustin Pop | |
421 | 48ce9fd9 | Iustin Pop | # cluster-wide pool of free ports
|
422 | a8efbb40 | Iustin Pop | for free_port in data.cluster.tcpudp_port_pool: |
423 | 48ce9fd9 | Iustin Pop | if free_port not in ports: |
424 | 48ce9fd9 | Iustin Pop | ports[free_port] = [] |
425 | 48ce9fd9 | Iustin Pop | ports[free_port].append(("cluster", "port marked as free")) |
426 | 48ce9fd9 | Iustin Pop | |
427 | 48ce9fd9 | Iustin Pop | # compute tcp/udp duplicate ports
|
428 | 48ce9fd9 | Iustin Pop | keys = ports.keys() |
429 | 48ce9fd9 | Iustin Pop | keys.sort() |
430 | 48ce9fd9 | Iustin Pop | for pnum in keys: |
431 | 48ce9fd9 | Iustin Pop | pdata = ports[pnum] |
432 | 48ce9fd9 | Iustin Pop | if len(pdata) > 1: |
433 | 1f864b60 | Iustin Pop | txt = utils.CommaJoin(["%s/%s" % val for val in pdata]) |
434 | 48ce9fd9 | Iustin Pop | result.append("tcp/udp port %s has duplicates: %s" % (pnum, txt))
|
435 | 48ce9fd9 | Iustin Pop | |
436 | 48ce9fd9 | Iustin Pop | # highest used tcp port check
|
437 | 48ce9fd9 | Iustin Pop | if keys:
|
438 | a8efbb40 | Iustin Pop | if keys[-1] > data.cluster.highest_used_port: |
439 | 48ce9fd9 | Iustin Pop | result.append("Highest used port mismatch, saved %s, computed %s" %
|
440 | a8efbb40 | Iustin Pop | (data.cluster.highest_used_port, keys[-1]))
|
441 | a8efbb40 | Iustin Pop | |
442 | 3a26773f | Iustin Pop | if not data.nodes[data.cluster.master_node].master_candidate: |
443 | 3a26773f | Iustin Pop | result.append("Master node is not a master candidate")
|
444 | 3a26773f | Iustin Pop | |
445 | 4a89c54a | Iustin Pop | # master candidate checks
|
446 | e623dbe3 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats()
|
447 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
448 | ec0292f1 | Iustin Pop | result.append("Not enough master candidates: actual %d, target %d" %
|
449 | ec0292f1 | Iustin Pop | (mc_now, mc_max)) |
450 | 48ce9fd9 | Iustin Pop | |
451 | 5bf07049 | Iustin Pop | # node checks
|
452 | 81196341 | Iustin Pop | for node_name, node in data.nodes.items(): |
453 | 81196341 | Iustin Pop | if node.name != node_name:
|
454 | 81196341 | Iustin Pop | result.append("Node '%s' is indexed by wrong name '%s'" %
|
455 | 81196341 | Iustin Pop | (node.name, node_name)) |
456 | 5bf07049 | Iustin Pop | if [node.master_candidate, node.drained, node.offline].count(True) > 1: |
457 | 5bf07049 | Iustin Pop | result.append("Node %s state is invalid: master_candidate=%s,"
|
458 | 5bf07049 | Iustin Pop | " drain=%s, offline=%s" %
|
459 | 5bf07049 | Iustin Pop | (node.name, node.master_candidate, node.drain, |
460 | 5bf07049 | Iustin Pop | node.offline)) |
461 | 5bf07049 | Iustin Pop | |
462 | 4a89c54a | Iustin Pop | # drbd minors check
|
463 | 1122eb25 | Iustin Pop | _, duplicates = self._UnlockedComputeDRBDMap()
|
464 | 4a89c54a | Iustin Pop | for node, minor, instance_a, instance_b in duplicates: |
465 | 4a89c54a | Iustin Pop | result.append("DRBD minor %d on node %s is assigned twice to instances"
|
466 | 4a89c54a | Iustin Pop | " %s and %s" % (minor, node, instance_a, instance_b))
|
467 | 4a89c54a | Iustin Pop | |
468 | 0ce8f948 | Iustin Pop | # IP checks
|
469 | b8716596 | Michael Hanselmann | default_nicparams = data.cluster.nicparams[constants.PP_DEFAULT] |
470 | b8716596 | Michael Hanselmann | ips = {} |
471 | b8716596 | Michael Hanselmann | |
472 | b8716596 | Michael Hanselmann | def _AddIpAddress(ip, name): |
473 | b8716596 | Michael Hanselmann | ips.setdefault(ip, []).append(name) |
474 | b8716596 | Michael Hanselmann | |
475 | b8716596 | Michael Hanselmann | _AddIpAddress(data.cluster.master_ip, "cluster_ip")
|
476 | 0ce8f948 | Iustin Pop | |
477 | 0ce8f948 | Iustin Pop | for node in data.nodes.values(): |
478 | b8716596 | Michael Hanselmann | _AddIpAddress(node.primary_ip, "node:%s/primary" % node.name)
|
479 | 0ce8f948 | Iustin Pop | if node.secondary_ip != node.primary_ip:
|
480 | b8716596 | Michael Hanselmann | _AddIpAddress(node.secondary_ip, "node:%s/secondary" % node.name)
|
481 | b8716596 | Michael Hanselmann | |
482 | b8716596 | Michael Hanselmann | for instance in data.instances.values(): |
483 | b8716596 | Michael Hanselmann | for idx, nic in enumerate(instance.nics): |
484 | b8716596 | Michael Hanselmann | if nic.ip is None: |
485 | b8716596 | Michael Hanselmann | continue
|
486 | b8716596 | Michael Hanselmann | |
487 | b8716596 | Michael Hanselmann | nicparams = objects.FillDict(default_nicparams, nic.nicparams) |
488 | b8716596 | Michael Hanselmann | nic_mode = nicparams[constants.NIC_MODE] |
489 | b8716596 | Michael Hanselmann | nic_link = nicparams[constants.NIC_LINK] |
490 | b8716596 | Michael Hanselmann | |
491 | b8716596 | Michael Hanselmann | if nic_mode == constants.NIC_MODE_BRIDGED:
|
492 | b8716596 | Michael Hanselmann | link = "bridge:%s" % nic_link
|
493 | b8716596 | Michael Hanselmann | elif nic_mode == constants.NIC_MODE_ROUTED:
|
494 | b8716596 | Michael Hanselmann | link = "route:%s" % nic_link
|
495 | b8716596 | Michael Hanselmann | else:
|
496 | b8716596 | Michael Hanselmann | raise errors.ProgrammerError("NIC mode '%s' not handled" % nic_mode) |
497 | b8716596 | Michael Hanselmann | |
498 | b8716596 | Michael Hanselmann | _AddIpAddress("%s/%s" % (link, nic.ip),
|
499 | b8716596 | Michael Hanselmann | "instance:%s/nic:%d" % (instance.name, idx))
|
500 | 0ce8f948 | Iustin Pop | |
501 | 0ce8f948 | Iustin Pop | for ip, owners in ips.items(): |
502 | 0ce8f948 | Iustin Pop | if len(owners) > 1: |
503 | 0ce8f948 | Iustin Pop | result.append("IP address %s is used by multiple owners: %s" %
|
504 | 1f864b60 | Iustin Pop | (ip, utils.CommaJoin(owners))) |
505 | b8716596 | Michael Hanselmann | |
506 | a8083063 | Iustin Pop | return result
|
507 | a8083063 | Iustin Pop | |
508 | 4a89c54a | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
509 | 4a89c54a | Iustin Pop | def VerifyConfig(self): |
510 | 4a89c54a | Iustin Pop | """Verify function.
|
511 | 4a89c54a | Iustin Pop |
|
512 | 4a89c54a | Iustin Pop | This is just a wrapper over L{_UnlockedVerifyConfig}.
|
513 | 4a89c54a | Iustin Pop |
|
514 | 4a89c54a | Iustin Pop | @rtype: list
|
515 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
516 | 4a89c54a | Iustin Pop | configuration errors
|
517 | 4a89c54a | Iustin Pop |
|
518 | 4a89c54a | Iustin Pop | """
|
519 | 4a89c54a | Iustin Pop | return self._UnlockedVerifyConfig() |
520 | 4a89c54a | Iustin Pop | |
521 | f78ede4e | Guido Trotter | def _UnlockedSetDiskID(self, disk, node_name): |
522 | a8083063 | Iustin Pop | """Convert the unique ID to the ID needed on the target nodes.
|
523 | a8083063 | Iustin Pop |
|
524 | a8083063 | Iustin Pop | This is used only for drbd, which needs ip/port configuration.
|
525 | a8083063 | Iustin Pop |
|
526 | a8083063 | Iustin Pop | The routine descends down and updates its children also, because
|
527 | a8083063 | Iustin Pop | this helps when the only the top device is passed to the remote
|
528 | a8083063 | Iustin Pop | node.
|
529 | a8083063 | Iustin Pop |
|
530 | f78ede4e | Guido Trotter | This function is for internal use, when the config lock is already held.
|
531 | f78ede4e | Guido Trotter |
|
532 | a8083063 | Iustin Pop | """
|
533 | a8083063 | Iustin Pop | if disk.children:
|
534 | a8083063 | Iustin Pop | for child in disk.children: |
535 | f78ede4e | Guido Trotter | self._UnlockedSetDiskID(child, node_name)
|
536 | a8083063 | Iustin Pop | |
537 | a8083063 | Iustin Pop | if disk.logical_id is None and disk.physical_id is not None: |
538 | a8083063 | Iustin Pop | return
|
539 | ffa1c0dc | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
540 | f9518d38 | Iustin Pop | pnode, snode, port, pminor, sminor, secret = disk.logical_id |
541 | a8083063 | Iustin Pop | if node_name not in (pnode, snode): |
542 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("DRBD device not knowing node %s" % |
543 | 3ecf6786 | Iustin Pop | node_name) |
544 | f78ede4e | Guido Trotter | pnode_info = self._UnlockedGetNodeInfo(pnode)
|
545 | f78ede4e | Guido Trotter | snode_info = self._UnlockedGetNodeInfo(snode)
|
546 | a8083063 | Iustin Pop | if pnode_info is None or snode_info is None: |
547 | a8083063 | Iustin Pop | raise errors.ConfigurationError("Can't find primary or secondary node" |
548 | a8083063 | Iustin Pop | " for %s" % str(disk)) |
549 | ffa1c0dc | Iustin Pop | p_data = (pnode_info.secondary_ip, port) |
550 | ffa1c0dc | Iustin Pop | s_data = (snode_info.secondary_ip, port) |
551 | a8083063 | Iustin Pop | if pnode == node_name:
|
552 | f9518d38 | Iustin Pop | disk.physical_id = p_data + s_data + (pminor, secret) |
553 | a8083063 | Iustin Pop | else: # it must be secondary, we tested above |
554 | f9518d38 | Iustin Pop | disk.physical_id = s_data + p_data + (sminor, secret) |
555 | a8083063 | Iustin Pop | else:
|
556 | a8083063 | Iustin Pop | disk.physical_id = disk.logical_id |
557 | a8083063 | Iustin Pop | return
|
558 | a8083063 | Iustin Pop | |
559 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
560 | f78ede4e | Guido Trotter | def SetDiskID(self, disk, node_name): |
561 | f78ede4e | Guido Trotter | """Convert the unique ID to the ID needed on the target nodes.
|
562 | f78ede4e | Guido Trotter |
|
563 | f78ede4e | Guido Trotter | This is used only for drbd, which needs ip/port configuration.
|
564 | f78ede4e | Guido Trotter |
|
565 | f78ede4e | Guido Trotter | The routine descends down and updates its children also, because
|
566 | f78ede4e | Guido Trotter | this helps when the only the top device is passed to the remote
|
567 | f78ede4e | Guido Trotter | node.
|
568 | f78ede4e | Guido Trotter |
|
569 | f78ede4e | Guido Trotter | """
|
570 | f78ede4e | Guido Trotter | return self._UnlockedSetDiskID(disk, node_name) |
571 | f78ede4e | Guido Trotter | |
572 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
573 | b2fddf63 | Iustin Pop | def AddTcpUdpPort(self, port): |
574 | b2fddf63 | Iustin Pop | """Adds a new port to the available port pool.
|
575 | b2fddf63 | Iustin Pop |
|
576 | b2fddf63 | Iustin Pop | """
|
577 | 264bb3c5 | Michael Hanselmann | if not isinstance(port, int): |
578 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed for port") |
579 | 264bb3c5 | Michael Hanselmann | |
580 | b2fddf63 | Iustin Pop | self._config_data.cluster.tcpudp_port_pool.add(port)
|
581 | 264bb3c5 | Michael Hanselmann | self._WriteConfig()
|
582 | 264bb3c5 | Michael Hanselmann | |
583 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
584 | b2fddf63 | Iustin Pop | def GetPortList(self): |
585 | 264bb3c5 | Michael Hanselmann | """Returns a copy of the current port list.
|
586 | 264bb3c5 | Michael Hanselmann |
|
587 | 264bb3c5 | Michael Hanselmann | """
|
588 | b2fddf63 | Iustin Pop | return self._config_data.cluster.tcpudp_port_pool.copy() |
589 | 264bb3c5 | Michael Hanselmann | |
590 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
591 | a8083063 | Iustin Pop | def AllocatePort(self): |
592 | a8083063 | Iustin Pop | """Allocate a port.
|
593 | a8083063 | Iustin Pop |
|
594 | b2fddf63 | Iustin Pop | The port will be taken from the available port pool or from the
|
595 | b2fddf63 | Iustin Pop | default port range (and in this case we increase
|
596 | b2fddf63 | Iustin Pop | highest_used_port).
|
597 | a8083063 | Iustin Pop |
|
598 | a8083063 | Iustin Pop | """
|
599 | 264bb3c5 | Michael Hanselmann | # If there are TCP/IP ports configured, we use them first.
|
600 | b2fddf63 | Iustin Pop | if self._config_data.cluster.tcpudp_port_pool: |
601 | b2fddf63 | Iustin Pop | port = self._config_data.cluster.tcpudp_port_pool.pop()
|
602 | 264bb3c5 | Michael Hanselmann | else:
|
603 | 264bb3c5 | Michael Hanselmann | port = self._config_data.cluster.highest_used_port + 1 |
604 | 264bb3c5 | Michael Hanselmann | if port >= constants.LAST_DRBD_PORT:
|
605 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("The highest used port is greater" |
606 | 3ecf6786 | Iustin Pop | " than %s. Aborting." %
|
607 | 3ecf6786 | Iustin Pop | constants.LAST_DRBD_PORT) |
608 | 264bb3c5 | Michael Hanselmann | self._config_data.cluster.highest_used_port = port
|
609 | a8083063 | Iustin Pop | |
610 | a8083063 | Iustin Pop | self._WriteConfig()
|
611 | a8083063 | Iustin Pop | return port
|
612 | a8083063 | Iustin Pop | |
613 | 6d2e83d5 | Iustin Pop | def _UnlockedComputeDRBDMap(self): |
614 | a81c53c9 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
615 | a81c53c9 | Iustin Pop |
|
616 | 4a89c54a | Iustin Pop | @rtype: (dict, list)
|
617 | c41eea6e | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
618 | c41eea6e | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
619 | 4a89c54a | Iustin Pop | an empty list), and a list of duplicates; if the duplicates
|
620 | 4a89c54a | Iustin Pop | list is not empty, the configuration is corrupted and its caller
|
621 | 4a89c54a | Iustin Pop | should raise an exception
|
622 | a81c53c9 | Iustin Pop |
|
623 | a81c53c9 | Iustin Pop | """
|
624 | a81c53c9 | Iustin Pop | def _AppendUsedPorts(instance_name, disk, used): |
625 | 4a89c54a | Iustin Pop | duplicates = [] |
626 | f9518d38 | Iustin Pop | if disk.dev_type == constants.LD_DRBD8 and len(disk.logical_id) >= 5: |
627 | 7c4d6c7b | Michael Hanselmann | node_a, node_b, _, minor_a, minor_b = disk.logical_id[:5]
|
628 | 7c4d6c7b | Michael Hanselmann | for node, port in ((node_a, minor_a), (node_b, minor_b)): |
629 | 4a89c54a | Iustin Pop | assert node in used, ("Node '%s' of instance '%s' not found" |
630 | 4a89c54a | Iustin Pop | " in node list" % (node, instance_name))
|
631 | a81c53c9 | Iustin Pop | if port in used[node]: |
632 | 4a89c54a | Iustin Pop | duplicates.append((node, port, instance_name, used[node][port])) |
633 | 4a89c54a | Iustin Pop | else:
|
634 | 4a89c54a | Iustin Pop | used[node][port] = instance_name |
635 | a81c53c9 | Iustin Pop | if disk.children:
|
636 | a81c53c9 | Iustin Pop | for child in disk.children: |
637 | 4a89c54a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance_name, child, used)) |
638 | 4a89c54a | Iustin Pop | return duplicates
|
639 | a81c53c9 | Iustin Pop | |
640 | 4a89c54a | Iustin Pop | duplicates = [] |
641 | a81c53c9 | Iustin Pop | my_dict = dict((node, {}) for node in self._config_data.nodes) |
642 | 79b26a7a | Iustin Pop | for instance in self._config_data.instances.itervalues(): |
643 | 79b26a7a | Iustin Pop | for disk in instance.disks: |
644 | 79b26a7a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance.name, disk, my_dict)) |
645 | a81c53c9 | Iustin Pop | for (node, minor), instance in self._temporary_drbds.iteritems(): |
646 | 79b26a7a | Iustin Pop | if minor in my_dict[node] and my_dict[node][minor] != instance: |
647 | 4a89c54a | Iustin Pop | duplicates.append((node, minor, instance, my_dict[node][minor])) |
648 | 4a89c54a | Iustin Pop | else:
|
649 | 4a89c54a | Iustin Pop | my_dict[node][minor] = instance |
650 | 4a89c54a | Iustin Pop | return my_dict, duplicates
|
651 | a81c53c9 | Iustin Pop | |
652 | a81c53c9 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
653 | 6d2e83d5 | Iustin Pop | def ComputeDRBDMap(self): |
654 | 6d2e83d5 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
655 | 6d2e83d5 | Iustin Pop |
|
656 | 6d2e83d5 | Iustin Pop | This is just a wrapper over L{_UnlockedComputeDRBDMap}.
|
657 | 6d2e83d5 | Iustin Pop |
|
658 | 6d2e83d5 | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
659 | 6d2e83d5 | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
660 | 6d2e83d5 | Iustin Pop | an empty list).
|
661 | 6d2e83d5 | Iustin Pop |
|
662 | 6d2e83d5 | Iustin Pop | """
|
663 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
664 | 4a89c54a | Iustin Pop | if duplicates:
|
665 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
666 | 4a89c54a | Iustin Pop | str(duplicates))
|
667 | 4a89c54a | Iustin Pop | return d_map
|
668 | 6d2e83d5 | Iustin Pop | |
669 | 6d2e83d5 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
670 | a81c53c9 | Iustin Pop | def AllocateDRBDMinor(self, nodes, instance): |
671 | a81c53c9 | Iustin Pop | """Allocate a drbd minor.
|
672 | a81c53c9 | Iustin Pop |
|
673 | a81c53c9 | Iustin Pop | The free minor will be automatically computed from the existing
|
674 | a81c53c9 | Iustin Pop | devices. A node can be given multiple times in order to allocate
|
675 | a81c53c9 | Iustin Pop | multiple minors. The result is the list of minors, in the same
|
676 | a81c53c9 | Iustin Pop | order as the passed nodes.
|
677 | a81c53c9 | Iustin Pop |
|
678 | 32388e6d | Iustin Pop | @type instance: string
|
679 | 32388e6d | Iustin Pop | @param instance: the instance for which we allocate minors
|
680 | 32388e6d | Iustin Pop |
|
681 | a81c53c9 | Iustin Pop | """
|
682 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
683 | 4a89c54a | Iustin Pop | "Invalid argument '%s' passed to AllocateDRBDMinor" % instance
|
684 | 32388e6d | Iustin Pop | |
685 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
686 | 4a89c54a | Iustin Pop | if duplicates:
|
687 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
688 | 4a89c54a | Iustin Pop | str(duplicates))
|
689 | a81c53c9 | Iustin Pop | result = [] |
690 | a81c53c9 | Iustin Pop | for nname in nodes: |
691 | a81c53c9 | Iustin Pop | ndata = d_map[nname] |
692 | a81c53c9 | Iustin Pop | if not ndata: |
693 | a81c53c9 | Iustin Pop | # no minors used, we can start at 0
|
694 | a81c53c9 | Iustin Pop | result.append(0)
|
695 | a81c53c9 | Iustin Pop | ndata[0] = instance
|
696 | d48663e4 | Iustin Pop | self._temporary_drbds[(nname, 0)] = instance |
697 | a81c53c9 | Iustin Pop | continue
|
698 | a81c53c9 | Iustin Pop | keys = ndata.keys() |
699 | a81c53c9 | Iustin Pop | keys.sort() |
700 | a81c53c9 | Iustin Pop | ffree = utils.FirstFree(keys) |
701 | a81c53c9 | Iustin Pop | if ffree is None: |
702 | a81c53c9 | Iustin Pop | # return the next minor
|
703 | a81c53c9 | Iustin Pop | # TODO: implement high-limit check
|
704 | a81c53c9 | Iustin Pop | minor = keys[-1] + 1 |
705 | a81c53c9 | Iustin Pop | else:
|
706 | a81c53c9 | Iustin Pop | minor = ffree |
707 | 4a89c54a | Iustin Pop | # double-check minor against current instances
|
708 | 4a89c54a | Iustin Pop | assert minor not in d_map[nname], \ |
709 | 4a89c54a | Iustin Pop | ("Attempt to reuse allocated DRBD minor %d on node %s,"
|
710 | 4a89c54a | Iustin Pop | " already allocated to instance %s" %
|
711 | 4a89c54a | Iustin Pop | (minor, nname, d_map[nname][minor])) |
712 | a81c53c9 | Iustin Pop | ndata[minor] = instance |
713 | 4a89c54a | Iustin Pop | # double-check minor against reservation
|
714 | 4a89c54a | Iustin Pop | r_key = (nname, minor) |
715 | 4a89c54a | Iustin Pop | assert r_key not in self._temporary_drbds, \ |
716 | 4a89c54a | Iustin Pop | ("Attempt to reuse reserved DRBD minor %d on node %s,"
|
717 | 4a89c54a | Iustin Pop | " reserved for instance %s" %
|
718 | 4a89c54a | Iustin Pop | (minor, nname, self._temporary_drbds[r_key]))
|
719 | 4a89c54a | Iustin Pop | self._temporary_drbds[r_key] = instance
|
720 | 4a89c54a | Iustin Pop | result.append(minor) |
721 | a81c53c9 | Iustin Pop | logging.debug("Request to allocate drbd minors, input: %s, returning %s",
|
722 | a81c53c9 | Iustin Pop | nodes, result) |
723 | a81c53c9 | Iustin Pop | return result
|
724 | a81c53c9 | Iustin Pop | |
725 | 61cf6b5e | Iustin Pop | def _UnlockedReleaseDRBDMinors(self, instance): |
726 | a81c53c9 | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
727 | a81c53c9 | Iustin Pop |
|
728 | a81c53c9 | Iustin Pop | @type instance: string
|
729 | a81c53c9 | Iustin Pop | @param instance: the instance for which temporary minors should be
|
730 | a81c53c9 | Iustin Pop | released
|
731 | a81c53c9 | Iustin Pop |
|
732 | a81c53c9 | Iustin Pop | """
|
733 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
734 | 32388e6d | Iustin Pop | "Invalid argument passed to ReleaseDRBDMinors"
|
735 | a81c53c9 | Iustin Pop | for key, name in self._temporary_drbds.items(): |
736 | a81c53c9 | Iustin Pop | if name == instance:
|
737 | a81c53c9 | Iustin Pop | del self._temporary_drbds[key] |
738 | a81c53c9 | Iustin Pop | |
739 | 61cf6b5e | Iustin Pop | @locking.ssynchronized(_config_lock)
|
740 | 61cf6b5e | Iustin Pop | def ReleaseDRBDMinors(self, instance): |
741 | 61cf6b5e | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
742 | 61cf6b5e | Iustin Pop |
|
743 | 61cf6b5e | Iustin Pop | This should be called on the error paths, on the success paths
|
744 | 61cf6b5e | Iustin Pop | it's automatically called by the ConfigWriter add and update
|
745 | 61cf6b5e | Iustin Pop | functions.
|
746 | 61cf6b5e | Iustin Pop |
|
747 | 61cf6b5e | Iustin Pop | This function is just a wrapper over L{_UnlockedReleaseDRBDMinors}.
|
748 | 61cf6b5e | Iustin Pop |
|
749 | 61cf6b5e | Iustin Pop | @type instance: string
|
750 | 61cf6b5e | Iustin Pop | @param instance: the instance for which temporary minors should be
|
751 | 61cf6b5e | Iustin Pop | released
|
752 | 61cf6b5e | Iustin Pop |
|
753 | 61cf6b5e | Iustin Pop | """
|
754 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance)
|
755 | 61cf6b5e | Iustin Pop | |
756 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
757 | 4a8b186a | Michael Hanselmann | def GetConfigVersion(self): |
758 | 4a8b186a | Michael Hanselmann | """Get the configuration version.
|
759 | 4a8b186a | Michael Hanselmann |
|
760 | 4a8b186a | Michael Hanselmann | @return: Config version
|
761 | 4a8b186a | Michael Hanselmann |
|
762 | 4a8b186a | Michael Hanselmann | """
|
763 | 4a8b186a | Michael Hanselmann | return self._config_data.version |
764 | 4a8b186a | Michael Hanselmann | |
765 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
766 | 4a8b186a | Michael Hanselmann | def GetClusterName(self): |
767 | 4a8b186a | Michael Hanselmann | """Get cluster name.
|
768 | 4a8b186a | Michael Hanselmann |
|
769 | 4a8b186a | Michael Hanselmann | @return: Cluster name
|
770 | 4a8b186a | Michael Hanselmann |
|
771 | 4a8b186a | Michael Hanselmann | """
|
772 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.cluster_name |
773 | 4a8b186a | Michael Hanselmann | |
774 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
775 | 4a8b186a | Michael Hanselmann | def GetMasterNode(self): |
776 | 4a8b186a | Michael Hanselmann | """Get the hostname of the master node for this cluster.
|
777 | 4a8b186a | Michael Hanselmann |
|
778 | 4a8b186a | Michael Hanselmann | @return: Master hostname
|
779 | 4a8b186a | Michael Hanselmann |
|
780 | 4a8b186a | Michael Hanselmann | """
|
781 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_node |
782 | 4a8b186a | Michael Hanselmann | |
783 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
784 | 4a8b186a | Michael Hanselmann | def GetMasterIP(self): |
785 | 4a8b186a | Michael Hanselmann | """Get the IP of the master node for this cluster.
|
786 | 4a8b186a | Michael Hanselmann |
|
787 | 4a8b186a | Michael Hanselmann | @return: Master IP
|
788 | 4a8b186a | Michael Hanselmann |
|
789 | 4a8b186a | Michael Hanselmann | """
|
790 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_ip |
791 | 4a8b186a | Michael Hanselmann | |
792 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
793 | 4a8b186a | Michael Hanselmann | def GetMasterNetdev(self): |
794 | 4a8b186a | Michael Hanselmann | """Get the master network device for this cluster.
|
795 | 4a8b186a | Michael Hanselmann |
|
796 | 4a8b186a | Michael Hanselmann | """
|
797 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_netdev |
798 | 4a8b186a | Michael Hanselmann | |
799 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
800 | 4a8b186a | Michael Hanselmann | def GetFileStorageDir(self): |
801 | 4a8b186a | Michael Hanselmann | """Get the file storage dir for this cluster.
|
802 | 4a8b186a | Michael Hanselmann |
|
803 | 4a8b186a | Michael Hanselmann | """
|
804 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.file_storage_dir |
805 | 4a8b186a | Michael Hanselmann | |
806 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
807 | 4a8b186a | Michael Hanselmann | def GetHypervisorType(self): |
808 | 4a8b186a | Michael Hanselmann | """Get the hypervisor type for this cluster.
|
809 | 4a8b186a | Michael Hanselmann |
|
810 | 4a8b186a | Michael Hanselmann | """
|
811 | 066f465d | Guido Trotter | return self._config_data.cluster.enabled_hypervisors[0] |
812 | 4a8b186a | Michael Hanselmann | |
813 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
814 | a8083063 | Iustin Pop | def GetHostKey(self): |
815 | a8083063 | Iustin Pop | """Return the rsa hostkey from the config.
|
816 | a8083063 | Iustin Pop |
|
817 | c41eea6e | Iustin Pop | @rtype: string
|
818 | c41eea6e | Iustin Pop | @return: the rsa hostkey
|
819 | a8083063 | Iustin Pop |
|
820 | a8083063 | Iustin Pop | """
|
821 | a8083063 | Iustin Pop | return self._config_data.cluster.rsahostkeypub |
822 | a8083063 | Iustin Pop | |
823 | bf4af505 | Apollon Oikonomopoulos | @locking.ssynchronized(_config_lock, shared=1) |
824 | bf4af505 | Apollon Oikonomopoulos | def GetDefaultIAllocator(self): |
825 | bf4af505 | Apollon Oikonomopoulos | """Get the default instance allocator for this cluster.
|
826 | bf4af505 | Apollon Oikonomopoulos |
|
827 | bf4af505 | Apollon Oikonomopoulos | """
|
828 | bf4af505 | Apollon Oikonomopoulos | return self._config_data.cluster.default_iallocator |
829 | bf4af505 | Apollon Oikonomopoulos | |
830 | 868a98ca | Manuel Franceschini | @locking.ssynchronized(_config_lock, shared=1) |
831 | 868a98ca | Manuel Franceschini | def GetPrimaryIPFamily(self): |
832 | 868a98ca | Manuel Franceschini | """Get cluster primary ip family.
|
833 | 868a98ca | Manuel Franceschini |
|
834 | 868a98ca | Manuel Franceschini | @return: primary ip family
|
835 | 868a98ca | Manuel Franceschini |
|
836 | 868a98ca | Manuel Franceschini | """
|
837 | 868a98ca | Manuel Franceschini | return self._config_data.cluster.primary_ip_family |
838 | 868a98ca | Manuel Franceschini | |
839 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
840 | 0debfb35 | Guido Trotter | def AddInstance(self, instance, ec_id): |
841 | a8083063 | Iustin Pop | """Add an instance to the config.
|
842 | a8083063 | Iustin Pop |
|
843 | a8083063 | Iustin Pop | This should be used after creating a new instance.
|
844 | a8083063 | Iustin Pop |
|
845 | c41eea6e | Iustin Pop | @type instance: L{objects.Instance}
|
846 | c41eea6e | Iustin Pop | @param instance: the instance object
|
847 | c41eea6e | Iustin Pop |
|
848 | a8083063 | Iustin Pop | """
|
849 | a8083063 | Iustin Pop | if not isinstance(instance, objects.Instance): |
850 | a8083063 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed to AddInstance") |
851 | a8083063 | Iustin Pop | |
852 | e00fb268 | Iustin Pop | if instance.disk_template != constants.DT_DISKLESS:
|
853 | e00fb268 | Iustin Pop | all_lvs = instance.MapLVsByNode() |
854 | 74a48621 | Iustin Pop | logging.info("Instance '%s' DISK_LAYOUT: %s", instance.name, all_lvs)
|
855 | 923b1523 | Iustin Pop | |
856 | e4640214 | Guido Trotter | all_macs = self._AllMACs()
|
857 | e4640214 | Guido Trotter | for nic in instance.nics: |
858 | e4640214 | Guido Trotter | if nic.mac in all_macs: |
859 | e4640214 | Guido Trotter | raise errors.ConfigurationError("Cannot add instance %s:" |
860 | 430b923c | Iustin Pop | " MAC address '%s' already in use." %
|
861 | 430b923c | Iustin Pop | (instance.name, nic.mac)) |
862 | 430b923c | Iustin Pop | |
863 | 0debfb35 | Guido Trotter | self._EnsureUUID(instance, ec_id)
|
864 | e4640214 | Guido Trotter | |
865 | b989e85d | Iustin Pop | instance.serial_no = 1
|
866 | d693c864 | Iustin Pop | instance.ctime = instance.mtime = time.time() |
867 | a8083063 | Iustin Pop | self._config_data.instances[instance.name] = instance
|
868 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
869 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance.name)
|
870 | a8083063 | Iustin Pop | self._WriteConfig()
|
871 | a8083063 | Iustin Pop | |
872 | 0debfb35 | Guido Trotter | def _EnsureUUID(self, item, ec_id): |
873 | 430b923c | Iustin Pop | """Ensures a given object has a valid UUID.
|
874 | 430b923c | Iustin Pop |
|
875 | 430b923c | Iustin Pop | @param item: the instance or node to be checked
|
876 | 0debfb35 | Guido Trotter | @param ec_id: the execution context id for the uuid reservation
|
877 | 430b923c | Iustin Pop |
|
878 | 430b923c | Iustin Pop | """
|
879 | 430b923c | Iustin Pop | if not item.uuid: |
880 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(ec_id)
|
881 | be0fc05d | Iustin Pop | elif item.uuid in self._AllIDs(include_temporary=True): |
882 | be0fc05d | Iustin Pop | raise errors.ConfigurationError("Cannot add '%s': UUID %s already" |
883 | be0fc05d | Iustin Pop | " in use" % (item.name, item.uuid))
|
884 | 430b923c | Iustin Pop | |
885 | 6a408fb2 | Iustin Pop | def _SetInstanceStatus(self, instance_name, status): |
886 | 6a408fb2 | Iustin Pop | """Set the instance's status to a given value.
|
887 | a8083063 | Iustin Pop |
|
888 | a8083063 | Iustin Pop | """
|
889 | 0d68c45d | Iustin Pop | assert isinstance(status, bool), \ |
890 | 0d68c45d | Iustin Pop | "Invalid status '%s' passed to SetInstanceStatus" % (status,)
|
891 | a8083063 | Iustin Pop | |
892 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
893 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % |
894 | 3ecf6786 | Iustin Pop | instance_name) |
895 | a8083063 | Iustin Pop | instance = self._config_data.instances[instance_name]
|
896 | 0d68c45d | Iustin Pop | if instance.admin_up != status:
|
897 | 0d68c45d | Iustin Pop | instance.admin_up = status |
898 | b989e85d | Iustin Pop | instance.serial_no += 1
|
899 | d693c864 | Iustin Pop | instance.mtime = time.time() |
900 | 455a3445 | Iustin Pop | self._WriteConfig()
|
901 | a8083063 | Iustin Pop | |
902 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
903 | 6a408fb2 | Iustin Pop | def MarkInstanceUp(self, instance_name): |
904 | 6a408fb2 | Iustin Pop | """Mark the instance status to up in the config.
|
905 | 6a408fb2 | Iustin Pop |
|
906 | 6a408fb2 | Iustin Pop | """
|
907 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, True) |
908 | 6a408fb2 | Iustin Pop | |
909 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
910 | a8083063 | Iustin Pop | def RemoveInstance(self, instance_name): |
911 | a8083063 | Iustin Pop | """Remove the instance from the configuration.
|
912 | a8083063 | Iustin Pop |
|
913 | a8083063 | Iustin Pop | """
|
914 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
915 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % instance_name) |
916 | a8083063 | Iustin Pop | del self._config_data.instances[instance_name] |
917 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
918 | a8083063 | Iustin Pop | self._WriteConfig()
|
919 | a8083063 | Iustin Pop | |
920 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
921 | fc95f88f | Iustin Pop | def RenameInstance(self, old_name, new_name): |
922 | fc95f88f | Iustin Pop | """Rename an instance.
|
923 | fc95f88f | Iustin Pop |
|
924 | fc95f88f | Iustin Pop | This needs to be done in ConfigWriter and not by RemoveInstance
|
925 | fc95f88f | Iustin Pop | combined with AddInstance as only we can guarantee an atomic
|
926 | fc95f88f | Iustin Pop | rename.
|
927 | fc95f88f | Iustin Pop |
|
928 | fc95f88f | Iustin Pop | """
|
929 | fc95f88f | Iustin Pop | if old_name not in self._config_data.instances: |
930 | fc95f88f | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % old_name) |
931 | fc95f88f | Iustin Pop | inst = self._config_data.instances[old_name]
|
932 | fc95f88f | Iustin Pop | del self._config_data.instances[old_name] |
933 | fc95f88f | Iustin Pop | inst.name = new_name |
934 | b23c4333 | Manuel Franceschini | |
935 | b23c4333 | Manuel Franceschini | for disk in inst.disks: |
936 | b23c4333 | Manuel Franceschini | if disk.dev_type == constants.LD_FILE:
|
937 | b23c4333 | Manuel Franceschini | # rename the file paths in logical and physical id
|
938 | b23c4333 | Manuel Franceschini | file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1]))
|
939 | b23c4333 | Manuel Franceschini | disk.physical_id = disk.logical_id = (disk.logical_id[0],
|
940 | c4feafe8 | Iustin Pop | utils.PathJoin(file_storage_dir, |
941 | c4feafe8 | Iustin Pop | inst.name, |
942 | c4feafe8 | Iustin Pop | disk.iv_name)) |
943 | b23c4333 | Manuel Franceschini | |
944 | fc95f88f | Iustin Pop | self._config_data.instances[inst.name] = inst
|
945 | fc95f88f | Iustin Pop | self._WriteConfig()
|
946 | fc95f88f | Iustin Pop | |
947 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
948 | a8083063 | Iustin Pop | def MarkInstanceDown(self, instance_name): |
949 | a8083063 | Iustin Pop | """Mark the status of an instance to down in the configuration.
|
950 | a8083063 | Iustin Pop |
|
951 | a8083063 | Iustin Pop | """
|
952 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, False) |
953 | a8083063 | Iustin Pop | |
954 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceList(self): |
955 | 94bbfece | Iustin Pop | """Get the list of instances.
|
956 | 94bbfece | Iustin Pop |
|
957 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
958 | 94bbfece | Iustin Pop |
|
959 | 94bbfece | Iustin Pop | """
|
960 | 94bbfece | Iustin Pop | return self._config_data.instances.keys() |
961 | 94bbfece | Iustin Pop | |
962 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
963 | a8083063 | Iustin Pop | def GetInstanceList(self): |
964 | a8083063 | Iustin Pop | """Get the list of instances.
|
965 | a8083063 | Iustin Pop |
|
966 | c41eea6e | Iustin Pop | @return: array of instances, ex. ['instance2.example.com',
|
967 | c41eea6e | Iustin Pop | 'instance1.example.com']
|
968 | a8083063 | Iustin Pop |
|
969 | a8083063 | Iustin Pop | """
|
970 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceList() |
971 | a8083063 | Iustin Pop | |
972 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
973 | a8083063 | Iustin Pop | def ExpandInstanceName(self, short_name): |
974 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
975 | a8083063 | Iustin Pop |
|
976 | a8083063 | Iustin Pop | """
|
977 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
978 | bcdf16d7 | Guido Trotter | self._config_data.instances.keys(),
|
979 | bcdf16d7 | Guido Trotter | case_sensitive=False)
|
980 | a8083063 | Iustin Pop | |
981 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceInfo(self, instance_name): |
982 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
983 | 94bbfece | Iustin Pop |
|
984 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
985 | 94bbfece | Iustin Pop |
|
986 | 94bbfece | Iustin Pop | """
|
987 | 94bbfece | Iustin Pop | if instance_name not in self._config_data.instances: |
988 | 94bbfece | Iustin Pop | return None |
989 | 94bbfece | Iustin Pop | |
990 | 94bbfece | Iustin Pop | return self._config_data.instances[instance_name] |
991 | 94bbfece | Iustin Pop | |
992 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
993 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
994 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
995 | a8083063 | Iustin Pop |
|
996 | 5bbd3f7f | Michael Hanselmann | It takes the information from the configuration file. Other information of
|
997 | a8083063 | Iustin Pop | an instance are taken from the live systems.
|
998 | a8083063 | Iustin Pop |
|
999 | c41eea6e | Iustin Pop | @param instance_name: name of the instance, e.g.
|
1000 | c41eea6e | Iustin Pop | I{instance1.example.com}
|
1001 | a8083063 | Iustin Pop |
|
1002 | c41eea6e | Iustin Pop | @rtype: L{objects.Instance}
|
1003 | c41eea6e | Iustin Pop | @return: the instance object
|
1004 | a8083063 | Iustin Pop |
|
1005 | a8083063 | Iustin Pop | """
|
1006 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceInfo(instance_name) |
1007 | a8083063 | Iustin Pop | |
1008 | 0b2de758 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1009 | 0b2de758 | Iustin Pop | def GetAllInstancesInfo(self): |
1010 | 0b2de758 | Iustin Pop | """Get the configuration of all instances.
|
1011 | 0b2de758 | Iustin Pop |
|
1012 | 0b2de758 | Iustin Pop | @rtype: dict
|
1013 | 5fcc718f | Iustin Pop | @return: dict of (instance, instance_info), where instance_info is what
|
1014 | 0b2de758 | Iustin Pop | would GetInstanceInfo return for the node
|
1015 | 0b2de758 | Iustin Pop |
|
1016 | 0b2de758 | Iustin Pop | """
|
1017 | 64d3bd52 | Guido Trotter | my_dict = dict([(instance, self._UnlockedGetInstanceInfo(instance)) |
1018 | 64d3bd52 | Guido Trotter | for instance in self._UnlockedGetInstanceList()]) |
1019 | 0b2de758 | Iustin Pop | return my_dict
|
1020 | 0b2de758 | Iustin Pop | |
1021 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1022 | 0debfb35 | Guido Trotter | def AddNode(self, node, ec_id): |
1023 | a8083063 | Iustin Pop | """Add a node to the configuration.
|
1024 | a8083063 | Iustin Pop |
|
1025 | c41eea6e | Iustin Pop | @type node: L{objects.Node}
|
1026 | c41eea6e | Iustin Pop | @param node: a Node instance
|
1027 | a8083063 | Iustin Pop |
|
1028 | a8083063 | Iustin Pop | """
|
1029 | 099c52ad | Iustin Pop | logging.info("Adding node %s to configuration", node.name)
|
1030 | d8470559 | Michael Hanselmann | |
1031 | 0debfb35 | Guido Trotter | self._EnsureUUID(node, ec_id)
|
1032 | 430b923c | Iustin Pop | |
1033 | b989e85d | Iustin Pop | node.serial_no = 1
|
1034 | d693c864 | Iustin Pop | node.ctime = node.mtime = time.time() |
1035 | a8083063 | Iustin Pop | self._config_data.nodes[node.name] = node
|
1036 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1037 | a8083063 | Iustin Pop | self._WriteConfig()
|
1038 | a8083063 | Iustin Pop | |
1039 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1040 | a8083063 | Iustin Pop | def RemoveNode(self, node_name): |
1041 | a8083063 | Iustin Pop | """Remove a node from the configuration.
|
1042 | a8083063 | Iustin Pop |
|
1043 | a8083063 | Iustin Pop | """
|
1044 | 099c52ad | Iustin Pop | logging.info("Removing node %s from configuration", node_name)
|
1045 | d8470559 | Michael Hanselmann | |
1046 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1047 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown node '%s'" % node_name) |
1048 | a8083063 | Iustin Pop | |
1049 | a8083063 | Iustin Pop | del self._config_data.nodes[node_name] |
1050 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1051 | a8083063 | Iustin Pop | self._WriteConfig()
|
1052 | a8083063 | Iustin Pop | |
1053 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1054 | a8083063 | Iustin Pop | def ExpandNodeName(self, short_name): |
1055 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
1056 | a8083063 | Iustin Pop |
|
1057 | a8083063 | Iustin Pop | """
|
1058 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
1059 | bcdf16d7 | Guido Trotter | self._config_data.nodes.keys(),
|
1060 | bcdf16d7 | Guido Trotter | case_sensitive=False)
|
1061 | a8083063 | Iustin Pop | |
1062 | f78ede4e | Guido Trotter | def _UnlockedGetNodeInfo(self, node_name): |
1063 | a8083063 | Iustin Pop | """Get the configuration of a node, as stored in the config.
|
1064 | a8083063 | Iustin Pop |
|
1065 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1066 | c41eea6e | Iustin Pop | held.
|
1067 | f78ede4e | Guido Trotter |
|
1068 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1069 | a8083063 | Iustin Pop |
|
1070 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1071 | c41eea6e | Iustin Pop | @return: the node object
|
1072 | a8083063 | Iustin Pop |
|
1073 | a8083063 | Iustin Pop | """
|
1074 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
1075 | a8083063 | Iustin Pop | return None |
1076 | a8083063 | Iustin Pop | |
1077 | a8083063 | Iustin Pop | return self._config_data.nodes[node_name] |
1078 | a8083063 | Iustin Pop | |
1079 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1080 | f78ede4e | Guido Trotter | def GetNodeInfo(self, node_name): |
1081 | f78ede4e | Guido Trotter | """Get the configuration of a node, as stored in the config.
|
1082 | f78ede4e | Guido Trotter |
|
1083 | c41eea6e | Iustin Pop | This is just a locked wrapper over L{_UnlockedGetNodeInfo}.
|
1084 | f78ede4e | Guido Trotter |
|
1085 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
1086 | c41eea6e | Iustin Pop |
|
1087 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
1088 | c41eea6e | Iustin Pop | @return: the node object
|
1089 | f78ede4e | Guido Trotter |
|
1090 | f78ede4e | Guido Trotter | """
|
1091 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeInfo(node_name) |
1092 | f78ede4e | Guido Trotter | |
1093 | f78ede4e | Guido Trotter | def _UnlockedGetNodeList(self): |
1094 | a8083063 | Iustin Pop | """Return the list of nodes which are in the configuration.
|
1095 | a8083063 | Iustin Pop |
|
1096 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
1097 | c41eea6e | Iustin Pop | held.
|
1098 | c41eea6e | Iustin Pop |
|
1099 | c41eea6e | Iustin Pop | @rtype: list
|
1100 | f78ede4e | Guido Trotter |
|
1101 | a8083063 | Iustin Pop | """
|
1102 | a8083063 | Iustin Pop | return self._config_data.nodes.keys() |
1103 | a8083063 | Iustin Pop | |
1104 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1105 | f78ede4e | Guido Trotter | def GetNodeList(self): |
1106 | f78ede4e | Guido Trotter | """Return the list of nodes which are in the configuration.
|
1107 | f78ede4e | Guido Trotter |
|
1108 | f78ede4e | Guido Trotter | """
|
1109 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeList() |
1110 | f78ede4e | Guido Trotter | |
1111 | 6819dc49 | Iustin Pop | def _UnlockedGetOnlineNodeList(self): |
1112 | 94a02bb5 | Iustin Pop | """Return the list of nodes which are online.
|
1113 | 94a02bb5 | Iustin Pop |
|
1114 | 94a02bb5 | Iustin Pop | """
|
1115 | 94a02bb5 | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
1116 | 94a02bb5 | Iustin Pop | for node in self._UnlockedGetNodeList()] |
1117 | 94a02bb5 | Iustin Pop | return [node.name for node in all_nodes if not node.offline] |
1118 | 94a02bb5 | Iustin Pop | |
1119 | 94a02bb5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1120 | 6819dc49 | Iustin Pop | def GetOnlineNodeList(self): |
1121 | 6819dc49 | Iustin Pop | """Return the list of nodes which are online.
|
1122 | 6819dc49 | Iustin Pop |
|
1123 | 6819dc49 | Iustin Pop | """
|
1124 | 6819dc49 | Iustin Pop | return self._UnlockedGetOnlineNodeList() |
1125 | 6819dc49 | Iustin Pop | |
1126 | 6819dc49 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1127 | d65e5776 | Iustin Pop | def GetAllNodesInfo(self): |
1128 | d65e5776 | Iustin Pop | """Get the configuration of all nodes.
|
1129 | d65e5776 | Iustin Pop |
|
1130 | d65e5776 | Iustin Pop | @rtype: dict
|
1131 | ec0292f1 | Iustin Pop | @return: dict of (node, node_info), where node_info is what
|
1132 | d65e5776 | Iustin Pop | would GetNodeInfo return for the node
|
1133 | d65e5776 | Iustin Pop |
|
1134 | d65e5776 | Iustin Pop | """
|
1135 | d65e5776 | Iustin Pop | my_dict = dict([(node, self._UnlockedGetNodeInfo(node)) |
1136 | d65e5776 | Iustin Pop | for node in self._UnlockedGetNodeList()]) |
1137 | d65e5776 | Iustin Pop | return my_dict
|
1138 | d65e5776 | Iustin Pop | |
1139 | 23f06b2b | Iustin Pop | def _UnlockedGetMasterCandidateStats(self, exceptions=None): |
1140 | ec0292f1 | Iustin Pop | """Get the number of current and maximum desired and possible candidates.
|
1141 | ec0292f1 | Iustin Pop |
|
1142 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1143 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1144 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1145 | e623dbe3 | Guido Trotter | @return: tuple of (current, desired and possible, possible)
|
1146 | ec0292f1 | Iustin Pop |
|
1147 | ec0292f1 | Iustin Pop | """
|
1148 | e623dbe3 | Guido Trotter | mc_now = mc_should = mc_max = 0
|
1149 | 23f06b2b | Iustin Pop | for node in self._config_data.nodes.values(): |
1150 | 23f06b2b | Iustin Pop | if exceptions and node.name in exceptions: |
1151 | 23f06b2b | Iustin Pop | continue
|
1152 | 5bf07049 | Iustin Pop | if not (node.offline or node.drained): |
1153 | ec0292f1 | Iustin Pop | mc_max += 1
|
1154 | ec0292f1 | Iustin Pop | if node.master_candidate:
|
1155 | ec0292f1 | Iustin Pop | mc_now += 1
|
1156 | e623dbe3 | Guido Trotter | mc_should = min(mc_max, self._config_data.cluster.candidate_pool_size) |
1157 | e623dbe3 | Guido Trotter | return (mc_now, mc_should, mc_max)
|
1158 | ec0292f1 | Iustin Pop | |
1159 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1160 | 23f06b2b | Iustin Pop | def GetMasterCandidateStats(self, exceptions=None): |
1161 | ec0292f1 | Iustin Pop | """Get the number of current and maximum possible candidates.
|
1162 | ec0292f1 | Iustin Pop |
|
1163 | ec0292f1 | Iustin Pop | This is just a wrapper over L{_UnlockedGetMasterCandidateStats}.
|
1164 | ec0292f1 | Iustin Pop |
|
1165 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1166 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1167 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1168 | ec0292f1 | Iustin Pop | @return: tuple of (current, max)
|
1169 | ec0292f1 | Iustin Pop |
|
1170 | ec0292f1 | Iustin Pop | """
|
1171 | 23f06b2b | Iustin Pop | return self._UnlockedGetMasterCandidateStats(exceptions) |
1172 | ec0292f1 | Iustin Pop | |
1173 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
1174 | 44485f49 | Guido Trotter | def MaintainCandidatePool(self, exceptions): |
1175 | ec0292f1 | Iustin Pop | """Try to grow the candidate pool to the desired size.
|
1176 | ec0292f1 | Iustin Pop |
|
1177 | 44485f49 | Guido Trotter | @type exceptions: list
|
1178 | 44485f49 | Guido Trotter | @param exceptions: if passed, list of nodes that should be ignored
|
1179 | ec0292f1 | Iustin Pop | @rtype: list
|
1180 | ee513a66 | Iustin Pop | @return: list with the adjusted nodes (L{objects.Node} instances)
|
1181 | ec0292f1 | Iustin Pop |
|
1182 | ec0292f1 | Iustin Pop | """
|
1183 | 44485f49 | Guido Trotter | mc_now, mc_max, _ = self._UnlockedGetMasterCandidateStats(exceptions)
|
1184 | ec0292f1 | Iustin Pop | mod_list = [] |
1185 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
1186 | ec0292f1 | Iustin Pop | node_list = self._config_data.nodes.keys()
|
1187 | ec0292f1 | Iustin Pop | random.shuffle(node_list) |
1188 | ec0292f1 | Iustin Pop | for name in node_list: |
1189 | ec0292f1 | Iustin Pop | if mc_now >= mc_max:
|
1190 | ec0292f1 | Iustin Pop | break
|
1191 | ec0292f1 | Iustin Pop | node = self._config_data.nodes[name]
|
1192 | 44485f49 | Guido Trotter | if (node.master_candidate or node.offline or node.drained or |
1193 | 44485f49 | Guido Trotter | node.name in exceptions):
|
1194 | ec0292f1 | Iustin Pop | continue
|
1195 | ee513a66 | Iustin Pop | mod_list.append(node) |
1196 | ec0292f1 | Iustin Pop | node.master_candidate = True
|
1197 | ec0292f1 | Iustin Pop | node.serial_no += 1
|
1198 | ec0292f1 | Iustin Pop | mc_now += 1
|
1199 | ec0292f1 | Iustin Pop | if mc_now != mc_max:
|
1200 | ec0292f1 | Iustin Pop | # this should not happen
|
1201 | ec0292f1 | Iustin Pop | logging.warning("Warning: MaintainCandidatePool didn't manage to"
|
1202 | ec0292f1 | Iustin Pop | " fill the candidate pool (%d/%d)", mc_now, mc_max)
|
1203 | ec0292f1 | Iustin Pop | if mod_list:
|
1204 | ec0292f1 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1205 | ec0292f1 | Iustin Pop | self._WriteConfig()
|
1206 | ec0292f1 | Iustin Pop | |
1207 | ec0292f1 | Iustin Pop | return mod_list
|
1208 | ec0292f1 | Iustin Pop | |
1209 | a8083063 | Iustin Pop | def _BumpSerialNo(self): |
1210 | a8083063 | Iustin Pop | """Bump up the serial number of the config.
|
1211 | a8083063 | Iustin Pop |
|
1212 | a8083063 | Iustin Pop | """
|
1213 | 9d38c6e1 | Iustin Pop | self._config_data.serial_no += 1 |
1214 | d693c864 | Iustin Pop | self._config_data.mtime = time.time()
|
1215 | a8083063 | Iustin Pop | |
1216 | 76d5d3a3 | Iustin Pop | def _AllUUIDObjects(self): |
1217 | 76d5d3a3 | Iustin Pop | """Returns all objects with uuid attributes.
|
1218 | 76d5d3a3 | Iustin Pop |
|
1219 | 76d5d3a3 | Iustin Pop | """
|
1220 | 76d5d3a3 | Iustin Pop | return (self._config_data.instances.values() + |
1221 | 76d5d3a3 | Iustin Pop | self._config_data.nodes.values() +
|
1222 | 76d5d3a3 | Iustin Pop | [self._config_data.cluster])
|
1223 | 76d5d3a3 | Iustin Pop | |
1224 | a8083063 | Iustin Pop | def _OpenConfig(self): |
1225 | a8083063 | Iustin Pop | """Read the config data from disk.
|
1226 | a8083063 | Iustin Pop |
|
1227 | a8083063 | Iustin Pop | """
|
1228 | 13998ef2 | Michael Hanselmann | raw_data = utils.ReadFile(self._cfg_file)
|
1229 | 13998ef2 | Michael Hanselmann | |
1230 | a8083063 | Iustin Pop | try:
|
1231 | 13998ef2 | Michael Hanselmann | data = objects.ConfigData.FromDict(serializer.Load(raw_data)) |
1232 | 13998ef2 | Michael Hanselmann | except Exception, err: |
1233 | 13998ef2 | Michael Hanselmann | raise errors.ConfigurationError(err)
|
1234 | 5b263ed7 | Michael Hanselmann | |
1235 | 5b263ed7 | Michael Hanselmann | # Make sure the configuration has the right version
|
1236 | 5b263ed7 | Michael Hanselmann | _ValidateConfig(data) |
1237 | 5b263ed7 | Michael Hanselmann | |
1238 | a8083063 | Iustin Pop | if (not hasattr(data, 'cluster') or |
1239 | 243cdbcc | Michael Hanselmann | not hasattr(data.cluster, 'rsahostkeypub')): |
1240 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Incomplete configuration" |
1241 | 243cdbcc | Michael Hanselmann | " (missing cluster.rsahostkeypub)")
|
1242 | 90d726a8 | Iustin Pop | |
1243 | 90d726a8 | Iustin Pop | # Upgrade configuration if needed
|
1244 | 90d726a8 | Iustin Pop | data.UpgradeConfig() |
1245 | 90d726a8 | Iustin Pop | |
1246 | a8083063 | Iustin Pop | self._config_data = data
|
1247 | 3c7f6c44 | Iustin Pop | # reset the last serial as -1 so that the next write will cause
|
1248 | 0779e3aa | Iustin Pop | # ssconf update
|
1249 | 0779e3aa | Iustin Pop | self._last_cluster_serial = -1 |
1250 | a8083063 | Iustin Pop | |
1251 | 76d5d3a3 | Iustin Pop | # And finally run our (custom) config upgrade sequence
|
1252 | 76d5d3a3 | Iustin Pop | self._UpgradeConfig()
|
1253 | 76d5d3a3 | Iustin Pop | |
1254 | 76d5d3a3 | Iustin Pop | def _UpgradeConfig(self): |
1255 | 76d5d3a3 | Iustin Pop | """Run upgrade steps that cannot be done purely in the objects.
|
1256 | 76d5d3a3 | Iustin Pop |
|
1257 | 76d5d3a3 | Iustin Pop | This is because some data elements need uniqueness across the
|
1258 | 76d5d3a3 | Iustin Pop | whole configuration, etc.
|
1259 | 76d5d3a3 | Iustin Pop |
|
1260 | 111c4e2f | Guido Trotter | @warning: this function will call L{_WriteConfig()}, but also
|
1261 | 111c4e2f | Guido Trotter | L{DropECReservations} so it needs to be called only from a
|
1262 | 111c4e2f | Guido Trotter | "safe" place (the constructor). If one wanted to call it with
|
1263 | 111c4e2f | Guido Trotter | the lock held, a DropECReservationUnlocked would need to be
|
1264 | 111c4e2f | Guido Trotter | created first, to avoid causing deadlock.
|
1265 | 76d5d3a3 | Iustin Pop |
|
1266 | 76d5d3a3 | Iustin Pop | """
|
1267 | 76d5d3a3 | Iustin Pop | modified = False
|
1268 | 76d5d3a3 | Iustin Pop | for item in self._AllUUIDObjects(): |
1269 | 76d5d3a3 | Iustin Pop | if item.uuid is None: |
1270 | 4fae38c5 | Guido Trotter | item.uuid = self._GenerateUniqueID(_UPGRADE_CONFIG_JID)
|
1271 | 76d5d3a3 | Iustin Pop | modified = True
|
1272 | 76d5d3a3 | Iustin Pop | if modified:
|
1273 | 76d5d3a3 | Iustin Pop | self._WriteConfig()
|
1274 | 4fae38c5 | Guido Trotter | # This is ok even if it acquires the internal lock, as _UpgradeConfig is
|
1275 | 4fae38c5 | Guido Trotter | # only called at config init time, without the lock held
|
1276 | 4fae38c5 | Guido Trotter | self.DropECReservations(_UPGRADE_CONFIG_JID)
|
1277 | 4fae38c5 | Guido Trotter | |
1278 | a4eae71f | Michael Hanselmann | def _DistributeConfig(self, feedback_fn): |
1279 | a8083063 | Iustin Pop | """Distribute the configuration to the other nodes.
|
1280 | a8083063 | Iustin Pop |
|
1281 | a8083063 | Iustin Pop | Currently, this only copies the configuration file. In the future,
|
1282 | a8083063 | Iustin Pop | it could be used to encapsulate the 2/3-phase update mechanism.
|
1283 | a8083063 | Iustin Pop |
|
1284 | a8083063 | Iustin Pop | """
|
1285 | a8083063 | Iustin Pop | if self._offline: |
1286 | a8083063 | Iustin Pop | return True |
1287 | a4eae71f | Michael Hanselmann | |
1288 | a8083063 | Iustin Pop | bad = False
|
1289 | a8083063 | Iustin Pop | |
1290 | 6a5b8b4b | Iustin Pop | node_list = [] |
1291 | 6a5b8b4b | Iustin Pop | addr_list = [] |
1292 | 6a5b8b4b | Iustin Pop | myhostname = self._my_hostname
|
1293 | 6b294c53 | Iustin Pop | # we can skip checking whether _UnlockedGetNodeInfo returns None
|
1294 | 6b294c53 | Iustin Pop | # since the node list comes from _UnlocketGetNodeList, and we are
|
1295 | 6b294c53 | Iustin Pop | # called with the lock held, so no modifications should take place
|
1296 | 6b294c53 | Iustin Pop | # in between
|
1297 | 6a5b8b4b | Iustin Pop | for node_name in self._UnlockedGetNodeList(): |
1298 | 6a5b8b4b | Iustin Pop | if node_name == myhostname:
|
1299 | 6a5b8b4b | Iustin Pop | continue
|
1300 | 6a5b8b4b | Iustin Pop | node_info = self._UnlockedGetNodeInfo(node_name)
|
1301 | 6a5b8b4b | Iustin Pop | if not node_info.master_candidate: |
1302 | 6a5b8b4b | Iustin Pop | continue
|
1303 | 6a5b8b4b | Iustin Pop | node_list.append(node_info.name) |
1304 | 6a5b8b4b | Iustin Pop | addr_list.append(node_info.primary_ip) |
1305 | 6b294c53 | Iustin Pop | |
1306 | 6a5b8b4b | Iustin Pop | result = rpc.RpcRunner.call_upload_file(node_list, self._cfg_file,
|
1307 | 6a5b8b4b | Iustin Pop | address_list=addr_list) |
1308 | 1b54fc6c | Guido Trotter | for to_node, to_result in result.items(): |
1309 | 3cebe102 | Michael Hanselmann | msg = to_result.fail_msg |
1310 | 1b54fc6c | Guido Trotter | if msg:
|
1311 | 1b54fc6c | Guido Trotter | msg = ("Copy of file %s to node %s failed: %s" %
|
1312 | dd7db360 | Iustin Pop | (self._cfg_file, to_node, msg))
|
1313 | 1b54fc6c | Guido Trotter | logging.error(msg) |
1314 | a4eae71f | Michael Hanselmann | |
1315 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1316 | a4eae71f | Michael Hanselmann | feedback_fn(msg) |
1317 | a4eae71f | Michael Hanselmann | |
1318 | a8083063 | Iustin Pop | bad = True
|
1319 | a4eae71f | Michael Hanselmann | |
1320 | a8083063 | Iustin Pop | return not bad |
1321 | a8083063 | Iustin Pop | |
1322 | a4eae71f | Michael Hanselmann | def _WriteConfig(self, destination=None, feedback_fn=None): |
1323 | a8083063 | Iustin Pop | """Write the configuration data to persistent storage.
|
1324 | a8083063 | Iustin Pop |
|
1325 | a8083063 | Iustin Pop | """
|
1326 | a4eae71f | Michael Hanselmann | assert feedback_fn is None or callable(feedback_fn) |
1327 | a4eae71f | Michael Hanselmann | |
1328 | d2231b8c | Iustin Pop | # Warn on config errors, but don't abort the save - the
|
1329 | d2231b8c | Iustin Pop | # configuration has already been modified, and we can't revert;
|
1330 | d2231b8c | Iustin Pop | # the best we can do is to warn the user and save as is, leaving
|
1331 | d2231b8c | Iustin Pop | # recovery to the user
|
1332 | 4a89c54a | Iustin Pop | config_errors = self._UnlockedVerifyConfig()
|
1333 | 4a89c54a | Iustin Pop | if config_errors:
|
1334 | d2231b8c | Iustin Pop | errmsg = ("Configuration data is not consistent: %s" %
|
1335 | 1f864b60 | Iustin Pop | (utils.CommaJoin(config_errors))) |
1336 | d2231b8c | Iustin Pop | logging.critical(errmsg) |
1337 | d2231b8c | Iustin Pop | if feedback_fn:
|
1338 | d2231b8c | Iustin Pop | feedback_fn(errmsg) |
1339 | d2231b8c | Iustin Pop | |
1340 | a8083063 | Iustin Pop | if destination is None: |
1341 | a8083063 | Iustin Pop | destination = self._cfg_file
|
1342 | a8083063 | Iustin Pop | self._BumpSerialNo()
|
1343 | 8d14b30d | Iustin Pop | txt = serializer.Dump(self._config_data.ToDict())
|
1344 | 13998ef2 | Michael Hanselmann | |
1345 | 13998ef2 | Michael Hanselmann | utils.WriteFile(destination, data=txt) |
1346 | 13998ef2 | Michael Hanselmann | |
1347 | 14e15659 | Iustin Pop | self.write_count += 1 |
1348 | 3d3a04bc | Iustin Pop | |
1349 | f56618e0 | Iustin Pop | # and redistribute the config file to master candidates
|
1350 | a4eae71f | Michael Hanselmann | self._DistributeConfig(feedback_fn)
|
1351 | a8083063 | Iustin Pop | |
1352 | 54d1a06e | Michael Hanselmann | # Write ssconf files on all nodes (including locally)
|
1353 | 0779e3aa | Iustin Pop | if self._last_cluster_serial < self._config_data.cluster.serial_no: |
1354 | d9a855f1 | Michael Hanselmann | if not self._offline: |
1355 | cd34faf2 | Michael Hanselmann | result = rpc.RpcRunner.call_write_ssconf_files( |
1356 | 6819dc49 | Iustin Pop | self._UnlockedGetOnlineNodeList(),
|
1357 | e1e75d00 | Iustin Pop | self._UnlockedGetSsconfValues())
|
1358 | a4eae71f | Michael Hanselmann | |
1359 | e1e75d00 | Iustin Pop | for nname, nresu in result.items(): |
1360 | 3cebe102 | Michael Hanselmann | msg = nresu.fail_msg |
1361 | e1e75d00 | Iustin Pop | if msg:
|
1362 | a4eae71f | Michael Hanselmann | errmsg = ("Error while uploading ssconf files to"
|
1363 | a4eae71f | Michael Hanselmann | " node %s: %s" % (nname, msg))
|
1364 | a4eae71f | Michael Hanselmann | logging.warning(errmsg) |
1365 | a4eae71f | Michael Hanselmann | |
1366 | a4eae71f | Michael Hanselmann | if feedback_fn:
|
1367 | a4eae71f | Michael Hanselmann | feedback_fn(errmsg) |
1368 | a4eae71f | Michael Hanselmann | |
1369 | 0779e3aa | Iustin Pop | self._last_cluster_serial = self._config_data.cluster.serial_no |
1370 | 54d1a06e | Michael Hanselmann | |
1371 | 03d1dba2 | Michael Hanselmann | def _UnlockedGetSsconfValues(self): |
1372 | 054596f0 | Iustin Pop | """Return the values needed by ssconf.
|
1373 | 054596f0 | Iustin Pop |
|
1374 | 054596f0 | Iustin Pop | @rtype: dict
|
1375 | 054596f0 | Iustin Pop | @return: a dictionary with keys the ssconf names and values their
|
1376 | 054596f0 | Iustin Pop | associated value
|
1377 | 054596f0 | Iustin Pop |
|
1378 | 054596f0 | Iustin Pop | """
|
1379 | a3316e4a | Iustin Pop | fn = "\n".join
|
1380 | 81a49123 | Iustin Pop | instance_names = utils.NiceSort(self._UnlockedGetInstanceList())
|
1381 | a3316e4a | Iustin Pop | node_names = utils.NiceSort(self._UnlockedGetNodeList())
|
1382 | a3316e4a | Iustin Pop | node_info = [self._UnlockedGetNodeInfo(name) for name in node_names] |
1383 | c3029d0a | Luca Bigliardi | node_pri_ips = ["%s %s" % (ninfo.name, ninfo.primary_ip)
|
1384 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1385 | c3029d0a | Luca Bigliardi | node_snd_ips = ["%s %s" % (ninfo.name, ninfo.secondary_ip)
|
1386 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1387 | a3316e4a | Iustin Pop | |
1388 | 81a49123 | Iustin Pop | instance_data = fn(instance_names) |
1389 | a3316e4a | Iustin Pop | off_data = fn(node.name for node in node_info if node.offline) |
1390 | 81a49123 | Iustin Pop | on_data = fn(node.name for node in node_info if not node.offline) |
1391 | a3316e4a | Iustin Pop | mc_data = fn(node.name for node in node_info if node.master_candidate) |
1392 | 8113a52e | Luca Bigliardi | mc_ips_data = fn(node.primary_ip for node in node_info |
1393 | 8113a52e | Luca Bigliardi | if node.master_candidate)
|
1394 | a3316e4a | Iustin Pop | node_data = fn(node_names) |
1395 | f9780ccd | Luca Bigliardi | node_pri_ips_data = fn(node_pri_ips) |
1396 | f9780ccd | Luca Bigliardi | node_snd_ips_data = fn(node_snd_ips) |
1397 | f56618e0 | Iustin Pop | |
1398 | 054596f0 | Iustin Pop | cluster = self._config_data.cluster
|
1399 | 5d60b3bd | Iustin Pop | cluster_tags = fn(cluster.GetTags()) |
1400 | 4f7a6a10 | Iustin Pop | |
1401 | 4f7a6a10 | Iustin Pop | hypervisor_list = fn(cluster.enabled_hypervisors) |
1402 | 4f7a6a10 | Iustin Pop | |
1403 | 0fbae49a | Balazs Lecz | uid_pool = uidpool.FormatUidPool(cluster.uid_pool, separator="\n")
|
1404 | 0fbae49a | Balazs Lecz | |
1405 | 03d1dba2 | Michael Hanselmann | return {
|
1406 | 054596f0 | Iustin Pop | constants.SS_CLUSTER_NAME: cluster.cluster_name, |
1407 | 5d60b3bd | Iustin Pop | constants.SS_CLUSTER_TAGS: cluster_tags, |
1408 | 054596f0 | Iustin Pop | constants.SS_FILE_STORAGE_DIR: cluster.file_storage_dir, |
1409 | a3316e4a | Iustin Pop | constants.SS_MASTER_CANDIDATES: mc_data, |
1410 | 8113a52e | Luca Bigliardi | constants.SS_MASTER_CANDIDATES_IPS: mc_ips_data, |
1411 | 054596f0 | Iustin Pop | constants.SS_MASTER_IP: cluster.master_ip, |
1412 | 054596f0 | Iustin Pop | constants.SS_MASTER_NETDEV: cluster.master_netdev, |
1413 | 054596f0 | Iustin Pop | constants.SS_MASTER_NODE: cluster.master_node, |
1414 | a3316e4a | Iustin Pop | constants.SS_NODE_LIST: node_data, |
1415 | f9780ccd | Luca Bigliardi | constants.SS_NODE_PRIMARY_IPS: node_pri_ips_data, |
1416 | f9780ccd | Luca Bigliardi | constants.SS_NODE_SECONDARY_IPS: node_snd_ips_data, |
1417 | a3316e4a | Iustin Pop | constants.SS_OFFLINE_NODES: off_data, |
1418 | 81a49123 | Iustin Pop | constants.SS_ONLINE_NODES: on_data, |
1419 | 868a98ca | Manuel Franceschini | constants.SS_PRIMARY_IP_FAMILY: str(cluster.primary_ip_family),
|
1420 | 81a49123 | Iustin Pop | constants.SS_INSTANCE_LIST: instance_data, |
1421 | 8a113c7a | Iustin Pop | constants.SS_RELEASE_VERSION: constants.RELEASE_VERSION, |
1422 | 4f7a6a10 | Iustin Pop | constants.SS_HYPERVISOR_LIST: hypervisor_list, |
1423 | 5c465a95 | Iustin Pop | constants.SS_MAINTAIN_NODE_HEALTH: str(cluster.maintain_node_health),
|
1424 | 0fbae49a | Balazs Lecz | constants.SS_UID_POOL: uid_pool, |
1425 | 03d1dba2 | Michael Hanselmann | } |
1426 | 03d1dba2 | Michael Hanselmann | |
1427 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1428 | d367b66c | Manuel Franceschini | def GetSsconfValues(self): |
1429 | d367b66c | Manuel Franceschini | """Wrapper using lock around _UnlockedGetSsconf().
|
1430 | d367b66c | Manuel Franceschini |
|
1431 | d367b66c | Manuel Franceschini | """
|
1432 | d367b66c | Manuel Franceschini | return self._UnlockedGetSsconfValues() |
1433 | d367b66c | Manuel Franceschini | |
1434 | d367b66c | Manuel Franceschini | @locking.ssynchronized(_config_lock, shared=1) |
1435 | a8083063 | Iustin Pop | def GetVGName(self): |
1436 | a8083063 | Iustin Pop | """Return the volume group name.
|
1437 | a8083063 | Iustin Pop |
|
1438 | a8083063 | Iustin Pop | """
|
1439 | a8083063 | Iustin Pop | return self._config_data.cluster.volume_group_name |
1440 | a8083063 | Iustin Pop | |
1441 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1442 | 89ff8e15 | Manuel Franceschini | def SetVGName(self, vg_name): |
1443 | 89ff8e15 | Manuel Franceschini | """Set the volume group name.
|
1444 | 89ff8e15 | Manuel Franceschini |
|
1445 | 89ff8e15 | Manuel Franceschini | """
|
1446 | 2d4011cd | Manuel Franceschini | self._config_data.cluster.volume_group_name = vg_name
|
1447 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1448 | 89ff8e15 | Manuel Franceschini | self._WriteConfig()
|
1449 | 89ff8e15 | Manuel Franceschini | |
1450 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1451 | 9e33896b | Luca Bigliardi | def GetDRBDHelper(self): |
1452 | 9e33896b | Luca Bigliardi | """Return DRBD usermode helper.
|
1453 | 9e33896b | Luca Bigliardi |
|
1454 | 9e33896b | Luca Bigliardi | """
|
1455 | 9e33896b | Luca Bigliardi | return self._config_data.cluster.drbd_usermode_helper |
1456 | 9e33896b | Luca Bigliardi | |
1457 | 9e33896b | Luca Bigliardi | @locking.ssynchronized(_config_lock)
|
1458 | 9e33896b | Luca Bigliardi | def SetDRBDHelper(self, drbd_helper): |
1459 | 9e33896b | Luca Bigliardi | """Set DRBD usermode helper.
|
1460 | 9e33896b | Luca Bigliardi |
|
1461 | 9e33896b | Luca Bigliardi | """
|
1462 | 9e33896b | Luca Bigliardi | self._config_data.cluster.drbd_usermode_helper = drbd_helper
|
1463 | 9e33896b | Luca Bigliardi | self._config_data.cluster.serial_no += 1 |
1464 | 9e33896b | Luca Bigliardi | self._WriteConfig()
|
1465 | 9e33896b | Luca Bigliardi | |
1466 | 9e33896b | Luca Bigliardi | @locking.ssynchronized(_config_lock, shared=1) |
1467 | a8083063 | Iustin Pop | def GetMACPrefix(self): |
1468 | a8083063 | Iustin Pop | """Return the mac prefix.
|
1469 | a8083063 | Iustin Pop |
|
1470 | a8083063 | Iustin Pop | """
|
1471 | a8083063 | Iustin Pop | return self._config_data.cluster.mac_prefix |
1472 | 62779dd0 | Iustin Pop | |
1473 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1474 | 62779dd0 | Iustin Pop | def GetClusterInfo(self): |
1475 | 5bbd3f7f | Michael Hanselmann | """Returns information about the cluster
|
1476 | 62779dd0 | Iustin Pop |
|
1477 | c41eea6e | Iustin Pop | @rtype: L{objects.Cluster}
|
1478 | c41eea6e | Iustin Pop | @return: the cluster object
|
1479 | 62779dd0 | Iustin Pop |
|
1480 | 62779dd0 | Iustin Pop | """
|
1481 | 62779dd0 | Iustin Pop | return self._config_data.cluster |
1482 | e00fb268 | Iustin Pop | |
1483 | 51cb1581 | Luca Bigliardi | @locking.ssynchronized(_config_lock, shared=1) |
1484 | 51cb1581 | Luca Bigliardi | def HasAnyDiskOfType(self, dev_type): |
1485 | 51cb1581 | Luca Bigliardi | """Check if in there is at disk of the given type in the configuration.
|
1486 | 51cb1581 | Luca Bigliardi |
|
1487 | 51cb1581 | Luca Bigliardi | """
|
1488 | 51cb1581 | Luca Bigliardi | return self._config_data.HasAnyDiskOfType(dev_type) |
1489 | 51cb1581 | Luca Bigliardi | |
1490 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1491 | a4eae71f | Michael Hanselmann | def Update(self, target, feedback_fn): |
1492 | e00fb268 | Iustin Pop | """Notify function to be called after updates.
|
1493 | e00fb268 | Iustin Pop |
|
1494 | e00fb268 | Iustin Pop | This function must be called when an object (as returned by
|
1495 | e00fb268 | Iustin Pop | GetInstanceInfo, GetNodeInfo, GetCluster) has been updated and the
|
1496 | e00fb268 | Iustin Pop | caller wants the modifications saved to the backing store. Note
|
1497 | e00fb268 | Iustin Pop | that all modified objects will be saved, but the target argument
|
1498 | e00fb268 | Iustin Pop | is the one the caller wants to ensure that it's saved.
|
1499 | e00fb268 | Iustin Pop |
|
1500 | c41eea6e | Iustin Pop | @param target: an instance of either L{objects.Cluster},
|
1501 | c41eea6e | Iustin Pop | L{objects.Node} or L{objects.Instance} which is existing in
|
1502 | c41eea6e | Iustin Pop | the cluster
|
1503 | a4eae71f | Michael Hanselmann | @param feedback_fn: Callable feedback function
|
1504 | c41eea6e | Iustin Pop |
|
1505 | e00fb268 | Iustin Pop | """
|
1506 | e00fb268 | Iustin Pop | if self._config_data is None: |
1507 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Configuration file not read," |
1508 | 3ecf6786 | Iustin Pop | " cannot save.")
|
1509 | f34901f8 | Iustin Pop | update_serial = False
|
1510 | e00fb268 | Iustin Pop | if isinstance(target, objects.Cluster): |
1511 | e00fb268 | Iustin Pop | test = target == self._config_data.cluster
|
1512 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Node): |
1513 | e00fb268 | Iustin Pop | test = target in self._config_data.nodes.values() |
1514 | f34901f8 | Iustin Pop | update_serial = True
|
1515 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Instance): |
1516 | e00fb268 | Iustin Pop | test = target in self._config_data.instances.values() |
1517 | e00fb268 | Iustin Pop | else:
|
1518 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid object type (%s) passed to" |
1519 | 3ecf6786 | Iustin Pop | " ConfigWriter.Update" % type(target)) |
1520 | e00fb268 | Iustin Pop | if not test: |
1521 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Configuration updated since object" |
1522 | 3ecf6786 | Iustin Pop | " has been read or unknown object")
|
1523 | f34901f8 | Iustin Pop | target.serial_no += 1
|
1524 | d693c864 | Iustin Pop | target.mtime = now = time.time() |
1525 | f34901f8 | Iustin Pop | |
1526 | cff4c037 | Iustin Pop | if update_serial:
|
1527 | f34901f8 | Iustin Pop | # for node updates, we need to increase the cluster serial too
|
1528 | f34901f8 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1529 | d693c864 | Iustin Pop | self._config_data.cluster.mtime = now
|
1530 | b989e85d | Iustin Pop | |
1531 | 61cf6b5e | Iustin Pop | if isinstance(target, objects.Instance): |
1532 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(target.name)
|
1533 | 61cf6b5e | Iustin Pop | |
1534 | a4eae71f | Michael Hanselmann | self._WriteConfig(feedback_fn=feedback_fn)
|
1535 | 73064714 | Guido Trotter | |
1536 | 73064714 | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1537 | 73064714 | Guido Trotter | def DropECReservations(self, ec_id): |
1538 | 73064714 | Guido Trotter | """Drop per-execution-context reservations
|
1539 | 73064714 | Guido Trotter |
|
1540 | 73064714 | Guido Trotter | """
|
1541 | d8aee57e | Iustin Pop | for rm in self._all_rms: |
1542 | d8aee57e | Iustin Pop | rm.DropECReservations(ec_id) |