root / lib / config.py @ 76d5d3a3
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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | a8083063 | Iustin Pop | """Configuration management for Ganeti
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23 | a8083063 | Iustin Pop |
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24 | 319856a9 | Michael Hanselmann | This module provides the interface to the Ganeti cluster configuration.
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25 | a8083063 | Iustin Pop |
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26 | 319856a9 | Michael Hanselmann | The configuration data is stored on every node but is updated on the master
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27 | 319856a9 | Michael Hanselmann | only. After each update, the master distributes the data to the other nodes.
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28 | a8083063 | Iustin Pop |
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29 | 319856a9 | Michael Hanselmann | Currently, the data storage format is JSON. YAML was slow and consuming too
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30 | 319856a9 | Michael Hanselmann | much memory.
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31 | a8083063 | Iustin Pop |
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32 | a8083063 | Iustin Pop | """
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33 | a8083063 | Iustin Pop | |
34 | a8083063 | Iustin Pop | import os |
35 | a8083063 | Iustin Pop | import tempfile |
36 | a8083063 | Iustin Pop | import random |
37 | d8470559 | Michael Hanselmann | import logging |
38 | d693c864 | Iustin Pop | import time |
39 | a8083063 | Iustin Pop | |
40 | a8083063 | Iustin Pop | from ganeti import errors |
41 | f78ede4e | Guido Trotter | from ganeti import locking |
42 | a8083063 | Iustin Pop | from ganeti import utils |
43 | a8083063 | Iustin Pop | from ganeti import constants |
44 | a8083063 | Iustin Pop | from ganeti import rpc |
45 | a8083063 | Iustin Pop | from ganeti import objects |
46 | 8d14b30d | Iustin Pop | from ganeti import serializer |
47 | 243cdbcc | Michael Hanselmann | |
48 | 243cdbcc | Michael Hanselmann | |
49 | f78ede4e | Guido Trotter | _config_lock = locking.SharedLock() |
50 | f78ede4e | Guido Trotter | |
51 | f78ede4e | Guido Trotter | |
52 | 5b263ed7 | Michael Hanselmann | def _ValidateConfig(data): |
53 | c41eea6e | Iustin Pop | """Verifies that a configuration objects looks valid.
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54 | c41eea6e | Iustin Pop |
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55 | c41eea6e | Iustin Pop | This only verifies the version of the configuration.
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56 | c41eea6e | Iustin Pop |
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57 | c41eea6e | Iustin Pop | @raise errors.ConfigurationError: if the version differs from what
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58 | c41eea6e | Iustin Pop | we expect
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59 | c41eea6e | Iustin Pop |
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60 | c41eea6e | Iustin Pop | """
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61 | 5b263ed7 | Michael Hanselmann | if data.version != constants.CONFIG_VERSION:
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62 | 243cdbcc | Michael Hanselmann | raise errors.ConfigurationError("Cluster configuration version" |
63 | 243cdbcc | Michael Hanselmann | " mismatch, got %s instead of %s" %
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64 | 5b263ed7 | Michael Hanselmann | (data.version, |
65 | 243cdbcc | Michael Hanselmann | constants.CONFIG_VERSION)) |
66 | a8083063 | Iustin Pop | |
67 | 319856a9 | Michael Hanselmann | |
68 | a8083063 | Iustin Pop | class ConfigWriter: |
69 | 098c0958 | Michael Hanselmann | """The interface to the cluster configuration.
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70 | a8083063 | Iustin Pop |
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71 | 098c0958 | Michael Hanselmann | """
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72 | a8083063 | Iustin Pop | def __init__(self, cfg_file=None, offline=False): |
73 | 14e15659 | Iustin Pop | self.write_count = 0 |
74 | f78ede4e | Guido Trotter | self._lock = _config_lock
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75 | a8083063 | Iustin Pop | self._config_data = None |
76 | a8083063 | Iustin Pop | self._offline = offline
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77 | a8083063 | Iustin Pop | if cfg_file is None: |
78 | a8083063 | Iustin Pop | self._cfg_file = constants.CLUSTER_CONF_FILE
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79 | a8083063 | Iustin Pop | else:
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80 | a8083063 | Iustin Pop | self._cfg_file = cfg_file
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81 | 923b1523 | Iustin Pop | self._temporary_ids = set() |
82 | a81c53c9 | Iustin Pop | self._temporary_drbds = {}
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83 | e7d81ba0 | Iustin Pop | self._temporary_macs = set() |
84 | 89e1fc26 | Iustin Pop | # Note: in order to prevent errors when resolving our name in
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85 | 89e1fc26 | Iustin Pop | # _DistributeConfig, we compute it here once and reuse it; it's
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86 | 89e1fc26 | Iustin Pop | # better to raise an error before starting to modify the config
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87 | 89e1fc26 | Iustin Pop | # file than after it was modified
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88 | 89e1fc26 | Iustin Pop | self._my_hostname = utils.HostInfo().name
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89 | 3c7f6c44 | Iustin Pop | self._last_cluster_serial = -1 |
90 | 3d3a04bc | Iustin Pop | self._OpenConfig()
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91 | a8083063 | Iustin Pop | |
92 | a8083063 | Iustin Pop | # this method needs to be static, so that we can call it on the class
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93 | a8083063 | Iustin Pop | @staticmethod
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94 | a8083063 | Iustin Pop | def IsCluster(): |
95 | a8083063 | Iustin Pop | """Check if the cluster is configured.
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96 | a8083063 | Iustin Pop |
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97 | a8083063 | Iustin Pop | """
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98 | a8083063 | Iustin Pop | return os.path.exists(constants.CLUSTER_CONF_FILE)
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99 | a8083063 | Iustin Pop | |
100 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
101 | a8083063 | Iustin Pop | def GenerateMAC(self): |
102 | a8083063 | Iustin Pop | """Generate a MAC for an instance.
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103 | a8083063 | Iustin Pop |
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104 | a8083063 | Iustin Pop | This should check the current instances for duplicates.
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105 | a8083063 | Iustin Pop |
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106 | a8083063 | Iustin Pop | """
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107 | a8083063 | Iustin Pop | prefix = self._config_data.cluster.mac_prefix
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108 | a8083063 | Iustin Pop | all_macs = self._AllMACs()
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109 | a8083063 | Iustin Pop | retries = 64
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110 | a8083063 | Iustin Pop | while retries > 0: |
111 | a8083063 | Iustin Pop | byte1 = random.randrange(0, 256) |
112 | a8083063 | Iustin Pop | byte2 = random.randrange(0, 256) |
113 | a8083063 | Iustin Pop | byte3 = random.randrange(0, 256) |
114 | a8083063 | Iustin Pop | mac = "%s:%02x:%02x:%02x" % (prefix, byte1, byte2, byte3)
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115 | e7d81ba0 | Iustin Pop | if mac not in all_macs and mac not in self._temporary_macs: |
116 | a8083063 | Iustin Pop | break
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117 | a8083063 | Iustin Pop | retries -= 1
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118 | a8083063 | Iustin Pop | else:
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119 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Can't generate unique MAC") |
120 | e7d81ba0 | Iustin Pop | self._temporary_macs.add(mac)
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121 | a8083063 | Iustin Pop | return mac
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122 | a8083063 | Iustin Pop | |
123 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
124 | 1862d460 | Alexander Schreiber | def IsMacInUse(self, mac): |
125 | 1862d460 | Alexander Schreiber | """Predicate: check if the specified MAC is in use in the Ganeti cluster.
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126 | 1862d460 | Alexander Schreiber |
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127 | 1862d460 | Alexander Schreiber | This only checks instances managed by this cluster, it does not
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128 | 1862d460 | Alexander Schreiber | check for potential collisions elsewhere.
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129 | 1862d460 | Alexander Schreiber |
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130 | 1862d460 | Alexander Schreiber | """
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131 | 1862d460 | Alexander Schreiber | all_macs = self._AllMACs()
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132 | e7d81ba0 | Iustin Pop | return mac in all_macs or mac in self._temporary_macs |
133 | 1862d460 | Alexander Schreiber | |
134 | f9518d38 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
135 | f9518d38 | Iustin Pop | def GenerateDRBDSecret(self): |
136 | f9518d38 | Iustin Pop | """Generate a DRBD secret.
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137 | f9518d38 | Iustin Pop |
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138 | f9518d38 | Iustin Pop | This checks the current disks for duplicates.
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139 | f9518d38 | Iustin Pop |
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140 | f9518d38 | Iustin Pop | """
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141 | f9518d38 | Iustin Pop | all_secrets = self._AllDRBDSecrets()
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142 | f9518d38 | Iustin Pop | retries = 64
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143 | f9518d38 | Iustin Pop | while retries > 0: |
144 | f9518d38 | Iustin Pop | secret = utils.GenerateSecret() |
145 | f9518d38 | Iustin Pop | if secret not in all_secrets: |
146 | f9518d38 | Iustin Pop | break
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147 | f9518d38 | Iustin Pop | retries -= 1
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148 | f9518d38 | Iustin Pop | else:
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149 | f9518d38 | Iustin Pop | raise errors.ConfigurationError("Can't generate unique DRBD secret") |
150 | f9518d38 | Iustin Pop | return secret
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151 | f9518d38 | Iustin Pop | |
152 | 34e54ebc | Iustin Pop | def _AllLVs(self): |
153 | 923b1523 | Iustin Pop | """Compute the list of all LVs.
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154 | 923b1523 | Iustin Pop |
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155 | 923b1523 | Iustin Pop | """
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156 | 923b1523 | Iustin Pop | lvnames = set()
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157 | 923b1523 | Iustin Pop | for instance in self._config_data.instances.values(): |
158 | 923b1523 | Iustin Pop | node_data = instance.MapLVsByNode() |
159 | 923b1523 | Iustin Pop | for lv_list in node_data.values(): |
160 | 923b1523 | Iustin Pop | lvnames.update(lv_list) |
161 | 923b1523 | Iustin Pop | return lvnames
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162 | 923b1523 | Iustin Pop | |
163 | 34e54ebc | Iustin Pop | def _AllIDs(self, include_temporary): |
164 | 34e54ebc | Iustin Pop | """Compute the list of all UUIDs and names we have.
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165 | 34e54ebc | Iustin Pop |
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166 | 34e54ebc | Iustin Pop | @type include_temporary: boolean
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167 | 34e54ebc | Iustin Pop | @param include_temporary: whether to include the _temporary_ids set
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168 | 34e54ebc | Iustin Pop | @rtype: set
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169 | 34e54ebc | Iustin Pop | @return: a set of IDs
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170 | 34e54ebc | Iustin Pop |
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171 | 34e54ebc | Iustin Pop | """
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172 | 34e54ebc | Iustin Pop | existing = set()
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173 | 34e54ebc | Iustin Pop | if include_temporary:
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174 | 34e54ebc | Iustin Pop | existing.update(self._temporary_ids)
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175 | 34e54ebc | Iustin Pop | existing.update(self._AllLVs())
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176 | 34e54ebc | Iustin Pop | existing.update(self._config_data.instances.keys())
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177 | 34e54ebc | Iustin Pop | existing.update(self._config_data.nodes.keys())
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178 | 76d5d3a3 | Iustin Pop | existing.update([i.uuid for i in self._AllUUIDObjects() if i.uuid]) |
179 | 34e54ebc | Iustin Pop | return existing
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180 | 34e54ebc | Iustin Pop | |
181 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
182 | 923b1523 | Iustin Pop | def GenerateUniqueID(self, exceptions=None): |
183 | 923b1523 | Iustin Pop | """Generate an unique disk name.
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184 | 923b1523 | Iustin Pop |
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185 | 923b1523 | Iustin Pop | This checks the current node, instances and disk names for
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186 | 923b1523 | Iustin Pop | duplicates.
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187 | 923b1523 | Iustin Pop |
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188 | c41eea6e | Iustin Pop | @param exceptions: a list with some other names which should be checked
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189 | c41eea6e | Iustin Pop | for uniqueness (used for example when you want to get
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190 | c41eea6e | Iustin Pop | more than one id at one time without adding each one in
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191 | c41eea6e | Iustin Pop | turn to the config file)
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192 | 923b1523 | Iustin Pop |
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193 | c41eea6e | Iustin Pop | @rtype: string
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194 | c41eea6e | Iustin Pop | @return: the unique id
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195 | 923b1523 | Iustin Pop |
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196 | 923b1523 | Iustin Pop | """
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197 | 34e54ebc | Iustin Pop | existing = self._AllIDs(include_temporary=True) |
198 | 923b1523 | Iustin Pop | if exceptions is not None: |
199 | 923b1523 | Iustin Pop | existing.update(exceptions) |
200 | 923b1523 | Iustin Pop | retries = 64
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201 | 923b1523 | Iustin Pop | while retries > 0: |
202 | 24818e8f | Michael Hanselmann | unique_id = utils.NewUUID() |
203 | 923b1523 | Iustin Pop | if unique_id not in existing and unique_id is not None: |
204 | 923b1523 | Iustin Pop | break
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205 | 923b1523 | Iustin Pop | else:
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206 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Not able generate an unique ID" |
207 | 3ecf6786 | Iustin Pop | " (last tried ID: %s" % unique_id)
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208 | 923b1523 | Iustin Pop | self._temporary_ids.add(unique_id)
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209 | 923b1523 | Iustin Pop | return unique_id
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210 | 923b1523 | Iustin Pop | |
211 | 34d657ba | Iustin Pop | def _CleanupTemporaryIDs(self): |
212 | 34d657ba | Iustin Pop | """Cleanups the _temporary_ids structure.
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213 | 34d657ba | Iustin Pop |
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214 | 34d657ba | Iustin Pop | """
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215 | 34d657ba | Iustin Pop | existing = self._AllIDs(include_temporary=False) |
216 | 34d657ba | Iustin Pop | self._temporary_ids = self._temporary_ids - existing |
217 | 34d657ba | Iustin Pop | |
218 | a8083063 | Iustin Pop | def _AllMACs(self): |
219 | a8083063 | Iustin Pop | """Return all MACs present in the config.
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220 | a8083063 | Iustin Pop |
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221 | c41eea6e | Iustin Pop | @rtype: list
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222 | c41eea6e | Iustin Pop | @return: the list of all MACs
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223 | c41eea6e | Iustin Pop |
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224 | a8083063 | Iustin Pop | """
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225 | a8083063 | Iustin Pop | result = [] |
226 | a8083063 | Iustin Pop | for instance in self._config_data.instances.values(): |
227 | a8083063 | Iustin Pop | for nic in instance.nics: |
228 | a8083063 | Iustin Pop | result.append(nic.mac) |
229 | a8083063 | Iustin Pop | |
230 | a8083063 | Iustin Pop | return result
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231 | a8083063 | Iustin Pop | |
232 | f9518d38 | Iustin Pop | def _AllDRBDSecrets(self): |
233 | f9518d38 | Iustin Pop | """Return all DRBD secrets present in the config.
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234 | f9518d38 | Iustin Pop |
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235 | c41eea6e | Iustin Pop | @rtype: list
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236 | c41eea6e | Iustin Pop | @return: the list of all DRBD secrets
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237 | c41eea6e | Iustin Pop |
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238 | f9518d38 | Iustin Pop | """
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239 | f9518d38 | Iustin Pop | def helper(disk, result): |
240 | f9518d38 | Iustin Pop | """Recursively gather secrets from this disk."""
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241 | f9518d38 | Iustin Pop | if disk.dev_type == constants.DT_DRBD8:
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242 | f9518d38 | Iustin Pop | result.append(disk.logical_id[5])
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243 | f9518d38 | Iustin Pop | if disk.children:
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244 | f9518d38 | Iustin Pop | for child in disk.children: |
245 | f9518d38 | Iustin Pop | helper(child, result) |
246 | f9518d38 | Iustin Pop | |
247 | f9518d38 | Iustin Pop | result = [] |
248 | f9518d38 | Iustin Pop | for instance in self._config_data.instances.values(): |
249 | f9518d38 | Iustin Pop | for disk in instance.disks: |
250 | f9518d38 | Iustin Pop | helper(disk, result) |
251 | f9518d38 | Iustin Pop | |
252 | f9518d38 | Iustin Pop | return result
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253 | f9518d38 | Iustin Pop | |
254 | 4b98ac29 | Iustin Pop | def _CheckDiskIDs(self, disk, l_ids, p_ids): |
255 | 4b98ac29 | Iustin Pop | """Compute duplicate disk IDs
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256 | 4b98ac29 | Iustin Pop |
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257 | 4b98ac29 | Iustin Pop | @type disk: L{objects.Disk}
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258 | 4b98ac29 | Iustin Pop | @param disk: the disk at which to start searching
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259 | 4b98ac29 | Iustin Pop | @type l_ids: list
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260 | 4b98ac29 | Iustin Pop | @param l_ids: list of current logical ids
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261 | 4b98ac29 | Iustin Pop | @type p_ids: list
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262 | 4b98ac29 | Iustin Pop | @param p_ids: list of current physical ids
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263 | 4b98ac29 | Iustin Pop | @rtype: list
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264 | 4b98ac29 | Iustin Pop | @return: a list of error messages
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265 | 4b98ac29 | Iustin Pop |
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266 | 4b98ac29 | Iustin Pop | """
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267 | 4b98ac29 | Iustin Pop | result = [] |
268 | 25ae22e4 | Iustin Pop | if disk.logical_id is not None: |
269 | 25ae22e4 | Iustin Pop | if disk.logical_id in l_ids: |
270 | 25ae22e4 | Iustin Pop | result.append("duplicate logical id %s" % str(disk.logical_id)) |
271 | 25ae22e4 | Iustin Pop | else:
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272 | 25ae22e4 | Iustin Pop | l_ids.append(disk.logical_id) |
273 | 25ae22e4 | Iustin Pop | if disk.physical_id is not None: |
274 | 25ae22e4 | Iustin Pop | if disk.physical_id in p_ids: |
275 | 25ae22e4 | Iustin Pop | result.append("duplicate physical id %s" % str(disk.physical_id)) |
276 | 25ae22e4 | Iustin Pop | else:
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277 | 25ae22e4 | Iustin Pop | p_ids.append(disk.physical_id) |
278 | 4b98ac29 | Iustin Pop | |
279 | 4b98ac29 | Iustin Pop | if disk.children:
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280 | 4b98ac29 | Iustin Pop | for child in disk.children: |
281 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(child, l_ids, p_ids))
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282 | 4b98ac29 | Iustin Pop | return result
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283 | 4b98ac29 | Iustin Pop | |
284 | 4a89c54a | Iustin Pop | def _UnlockedVerifyConfig(self): |
285 | a8efbb40 | Iustin Pop | """Verify function.
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286 | a8efbb40 | Iustin Pop |
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287 | 4a89c54a | Iustin Pop | @rtype: list
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288 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
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289 | 4a89c54a | Iustin Pop | configuration errors
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290 | 4a89c54a | Iustin Pop |
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291 | a8083063 | Iustin Pop | """
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292 | a8083063 | Iustin Pop | result = [] |
293 | a8083063 | Iustin Pop | seen_macs = [] |
294 | 48ce9fd9 | Iustin Pop | ports = {} |
295 | a8083063 | Iustin Pop | data = self._config_data
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296 | 4b98ac29 | Iustin Pop | seen_lids = [] |
297 | 4b98ac29 | Iustin Pop | seen_pids = [] |
298 | 9a5fba23 | Guido Trotter | |
299 | 9a5fba23 | Guido Trotter | # global cluster checks
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300 | 9a5fba23 | Guido Trotter | if not data.cluster.enabled_hypervisors: |
301 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors list doesn't have any entries")
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302 | 9a5fba23 | Guido Trotter | invalid_hvs = set(data.cluster.enabled_hypervisors) - constants.HYPER_TYPES
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303 | 9a5fba23 | Guido Trotter | if invalid_hvs:
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304 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors contains invalid entries: %s" %
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305 | 9a5fba23 | Guido Trotter | invalid_hvs) |
306 | 9a5fba23 | Guido Trotter | |
307 | 9a5fba23 | Guido Trotter | if data.cluster.master_node not in data.nodes: |
308 | 9a5fba23 | Guido Trotter | result.append("cluster has invalid primary node '%s'" %
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309 | 9a5fba23 | Guido Trotter | data.cluster.master_node) |
310 | 9a5fba23 | Guido Trotter | |
311 | 9a5fba23 | Guido Trotter | # per-instance checks
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312 | a8083063 | Iustin Pop | for instance_name in data.instances: |
313 | a8083063 | Iustin Pop | instance = data.instances[instance_name] |
314 | a8083063 | Iustin Pop | if instance.primary_node not in data.nodes: |
315 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid primary node '%s'" %
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316 | a8083063 | Iustin Pop | (instance_name, instance.primary_node)) |
317 | a8083063 | Iustin Pop | for snode in instance.secondary_nodes: |
318 | a8083063 | Iustin Pop | if snode not in data.nodes: |
319 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid secondary node '%s'" %
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320 | a8083063 | Iustin Pop | (instance_name, snode)) |
321 | a8083063 | Iustin Pop | for idx, nic in enumerate(instance.nics): |
322 | a8083063 | Iustin Pop | if nic.mac in seen_macs: |
323 | 8522ceeb | Iustin Pop | result.append("instance '%s' has NIC %d mac %s duplicate" %
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324 | a8083063 | Iustin Pop | (instance_name, idx, nic.mac)) |
325 | a8083063 | Iustin Pop | else:
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326 | a8083063 | Iustin Pop | seen_macs.append(nic.mac) |
327 | 48ce9fd9 | Iustin Pop | |
328 | 48ce9fd9 | Iustin Pop | # gather the drbd ports for duplicate checks
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329 | 48ce9fd9 | Iustin Pop | for dsk in instance.disks: |
330 | 48ce9fd9 | Iustin Pop | if dsk.dev_type in constants.LDS_DRBD: |
331 | 48ce9fd9 | Iustin Pop | tcp_port = dsk.logical_id[2]
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332 | 48ce9fd9 | Iustin Pop | if tcp_port not in ports: |
333 | 48ce9fd9 | Iustin Pop | ports[tcp_port] = [] |
334 | 48ce9fd9 | Iustin Pop | ports[tcp_port].append((instance.name, "drbd disk %s" % dsk.iv_name))
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335 | 48ce9fd9 | Iustin Pop | # gather network port reservation
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336 | 48ce9fd9 | Iustin Pop | net_port = getattr(instance, "network_port", None) |
337 | 48ce9fd9 | Iustin Pop | if net_port is not None: |
338 | 48ce9fd9 | Iustin Pop | if net_port not in ports: |
339 | 48ce9fd9 | Iustin Pop | ports[net_port] = [] |
340 | 48ce9fd9 | Iustin Pop | ports[net_port].append((instance.name, "network port"))
|
341 | 48ce9fd9 | Iustin Pop | |
342 | 332d0e37 | Iustin Pop | # instance disk verify
|
343 | 332d0e37 | Iustin Pop | for idx, disk in enumerate(instance.disks): |
344 | 332d0e37 | Iustin Pop | result.extend(["instance '%s' disk %d error: %s" %
|
345 | 332d0e37 | Iustin Pop | (instance.name, idx, msg) for msg in disk.Verify()]) |
346 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(disk, seen_lids, seen_pids))
|
347 | 332d0e37 | Iustin Pop | |
348 | 48ce9fd9 | Iustin Pop | # cluster-wide pool of free ports
|
349 | a8efbb40 | Iustin Pop | for free_port in data.cluster.tcpudp_port_pool: |
350 | 48ce9fd9 | Iustin Pop | if free_port not in ports: |
351 | 48ce9fd9 | Iustin Pop | ports[free_port] = [] |
352 | 48ce9fd9 | Iustin Pop | ports[free_port].append(("cluster", "port marked as free")) |
353 | 48ce9fd9 | Iustin Pop | |
354 | 48ce9fd9 | Iustin Pop | # compute tcp/udp duplicate ports
|
355 | 48ce9fd9 | Iustin Pop | keys = ports.keys() |
356 | 48ce9fd9 | Iustin Pop | keys.sort() |
357 | 48ce9fd9 | Iustin Pop | for pnum in keys: |
358 | 48ce9fd9 | Iustin Pop | pdata = ports[pnum] |
359 | 48ce9fd9 | Iustin Pop | if len(pdata) > 1: |
360 | 48ce9fd9 | Iustin Pop | txt = ", ".join(["%s/%s" % val for val in pdata]) |
361 | 48ce9fd9 | Iustin Pop | result.append("tcp/udp port %s has duplicates: %s" % (pnum, txt))
|
362 | 48ce9fd9 | Iustin Pop | |
363 | 48ce9fd9 | Iustin Pop | # highest used tcp port check
|
364 | 48ce9fd9 | Iustin Pop | if keys:
|
365 | a8efbb40 | Iustin Pop | if keys[-1] > data.cluster.highest_used_port: |
366 | 48ce9fd9 | Iustin Pop | result.append("Highest used port mismatch, saved %s, computed %s" %
|
367 | a8efbb40 | Iustin Pop | (data.cluster.highest_used_port, keys[-1]))
|
368 | a8efbb40 | Iustin Pop | |
369 | 3a26773f | Iustin Pop | if not data.nodes[data.cluster.master_node].master_candidate: |
370 | 3a26773f | Iustin Pop | result.append("Master node is not a master candidate")
|
371 | 3a26773f | Iustin Pop | |
372 | 4a89c54a | Iustin Pop | # master candidate checks
|
373 | ec0292f1 | Iustin Pop | mc_now, mc_max = self._UnlockedGetMasterCandidateStats()
|
374 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
375 | ec0292f1 | Iustin Pop | result.append("Not enough master candidates: actual %d, target %d" %
|
376 | ec0292f1 | Iustin Pop | (mc_now, mc_max)) |
377 | 48ce9fd9 | Iustin Pop | |
378 | 5bf07049 | Iustin Pop | # node checks
|
379 | 5bf07049 | Iustin Pop | for node in data.nodes.values(): |
380 | 5bf07049 | Iustin Pop | if [node.master_candidate, node.drained, node.offline].count(True) > 1: |
381 | 5bf07049 | Iustin Pop | result.append("Node %s state is invalid: master_candidate=%s,"
|
382 | 5bf07049 | Iustin Pop | " drain=%s, offline=%s" %
|
383 | 5bf07049 | Iustin Pop | (node.name, node.master_candidate, node.drain, |
384 | 5bf07049 | Iustin Pop | node.offline)) |
385 | 5bf07049 | Iustin Pop | |
386 | 4a89c54a | Iustin Pop | # drbd minors check
|
387 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
388 | 4a89c54a | Iustin Pop | for node, minor, instance_a, instance_b in duplicates: |
389 | 4a89c54a | Iustin Pop | result.append("DRBD minor %d on node %s is assigned twice to instances"
|
390 | 4a89c54a | Iustin Pop | " %s and %s" % (minor, node, instance_a, instance_b))
|
391 | 4a89c54a | Iustin Pop | |
392 | a8083063 | Iustin Pop | return result
|
393 | a8083063 | Iustin Pop | |
394 | 4a89c54a | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
395 | 4a89c54a | Iustin Pop | def VerifyConfig(self): |
396 | 4a89c54a | Iustin Pop | """Verify function.
|
397 | 4a89c54a | Iustin Pop |
|
398 | 4a89c54a | Iustin Pop | This is just a wrapper over L{_UnlockedVerifyConfig}.
|
399 | 4a89c54a | Iustin Pop |
|
400 | 4a89c54a | Iustin Pop | @rtype: list
|
401 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
402 | 4a89c54a | Iustin Pop | configuration errors
|
403 | 4a89c54a | Iustin Pop |
|
404 | 4a89c54a | Iustin Pop | """
|
405 | 4a89c54a | Iustin Pop | return self._UnlockedVerifyConfig() |
406 | 4a89c54a | Iustin Pop | |
407 | f78ede4e | Guido Trotter | def _UnlockedSetDiskID(self, disk, node_name): |
408 | a8083063 | Iustin Pop | """Convert the unique ID to the ID needed on the target nodes.
|
409 | a8083063 | Iustin Pop |
|
410 | a8083063 | Iustin Pop | This is used only for drbd, which needs ip/port configuration.
|
411 | a8083063 | Iustin Pop |
|
412 | a8083063 | Iustin Pop | The routine descends down and updates its children also, because
|
413 | a8083063 | Iustin Pop | this helps when the only the top device is passed to the remote
|
414 | a8083063 | Iustin Pop | node.
|
415 | a8083063 | Iustin Pop |
|
416 | f78ede4e | Guido Trotter | This function is for internal use, when the config lock is already held.
|
417 | f78ede4e | Guido Trotter |
|
418 | a8083063 | Iustin Pop | """
|
419 | a8083063 | Iustin Pop | if disk.children:
|
420 | a8083063 | Iustin Pop | for child in disk.children: |
421 | f78ede4e | Guido Trotter | self._UnlockedSetDiskID(child, node_name)
|
422 | a8083063 | Iustin Pop | |
423 | a8083063 | Iustin Pop | if disk.logical_id is None and disk.physical_id is not None: |
424 | a8083063 | Iustin Pop | return
|
425 | ffa1c0dc | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
426 | f9518d38 | Iustin Pop | pnode, snode, port, pminor, sminor, secret = disk.logical_id |
427 | a8083063 | Iustin Pop | if node_name not in (pnode, snode): |
428 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("DRBD device not knowing node %s" % |
429 | 3ecf6786 | Iustin Pop | node_name) |
430 | f78ede4e | Guido Trotter | pnode_info = self._UnlockedGetNodeInfo(pnode)
|
431 | f78ede4e | Guido Trotter | snode_info = self._UnlockedGetNodeInfo(snode)
|
432 | a8083063 | Iustin Pop | if pnode_info is None or snode_info is None: |
433 | a8083063 | Iustin Pop | raise errors.ConfigurationError("Can't find primary or secondary node" |
434 | a8083063 | Iustin Pop | " for %s" % str(disk)) |
435 | ffa1c0dc | Iustin Pop | p_data = (pnode_info.secondary_ip, port) |
436 | ffa1c0dc | Iustin Pop | s_data = (snode_info.secondary_ip, port) |
437 | a8083063 | Iustin Pop | if pnode == node_name:
|
438 | f9518d38 | Iustin Pop | disk.physical_id = p_data + s_data + (pminor, secret) |
439 | a8083063 | Iustin Pop | else: # it must be secondary, we tested above |
440 | f9518d38 | Iustin Pop | disk.physical_id = s_data + p_data + (sminor, secret) |
441 | a8083063 | Iustin Pop | else:
|
442 | a8083063 | Iustin Pop | disk.physical_id = disk.logical_id |
443 | a8083063 | Iustin Pop | return
|
444 | a8083063 | Iustin Pop | |
445 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
446 | f78ede4e | Guido Trotter | def SetDiskID(self, disk, node_name): |
447 | f78ede4e | Guido Trotter | """Convert the unique ID to the ID needed on the target nodes.
|
448 | f78ede4e | Guido Trotter |
|
449 | f78ede4e | Guido Trotter | This is used only for drbd, which needs ip/port configuration.
|
450 | f78ede4e | Guido Trotter |
|
451 | f78ede4e | Guido Trotter | The routine descends down and updates its children also, because
|
452 | f78ede4e | Guido Trotter | this helps when the only the top device is passed to the remote
|
453 | f78ede4e | Guido Trotter | node.
|
454 | f78ede4e | Guido Trotter |
|
455 | f78ede4e | Guido Trotter | """
|
456 | f78ede4e | Guido Trotter | return self._UnlockedSetDiskID(disk, node_name) |
457 | f78ede4e | Guido Trotter | |
458 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
459 | b2fddf63 | Iustin Pop | def AddTcpUdpPort(self, port): |
460 | b2fddf63 | Iustin Pop | """Adds a new port to the available port pool.
|
461 | b2fddf63 | Iustin Pop |
|
462 | b2fddf63 | Iustin Pop | """
|
463 | 264bb3c5 | Michael Hanselmann | if not isinstance(port, int): |
464 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed for port") |
465 | 264bb3c5 | Michael Hanselmann | |
466 | b2fddf63 | Iustin Pop | self._config_data.cluster.tcpudp_port_pool.add(port)
|
467 | 264bb3c5 | Michael Hanselmann | self._WriteConfig()
|
468 | 264bb3c5 | Michael Hanselmann | |
469 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
470 | b2fddf63 | Iustin Pop | def GetPortList(self): |
471 | 264bb3c5 | Michael Hanselmann | """Returns a copy of the current port list.
|
472 | 264bb3c5 | Michael Hanselmann |
|
473 | 264bb3c5 | Michael Hanselmann | """
|
474 | b2fddf63 | Iustin Pop | return self._config_data.cluster.tcpudp_port_pool.copy() |
475 | 264bb3c5 | Michael Hanselmann | |
476 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
477 | a8083063 | Iustin Pop | def AllocatePort(self): |
478 | a8083063 | Iustin Pop | """Allocate a port.
|
479 | a8083063 | Iustin Pop |
|
480 | b2fddf63 | Iustin Pop | The port will be taken from the available port pool or from the
|
481 | b2fddf63 | Iustin Pop | default port range (and in this case we increase
|
482 | b2fddf63 | Iustin Pop | highest_used_port).
|
483 | a8083063 | Iustin Pop |
|
484 | a8083063 | Iustin Pop | """
|
485 | 264bb3c5 | Michael Hanselmann | # If there are TCP/IP ports configured, we use them first.
|
486 | b2fddf63 | Iustin Pop | if self._config_data.cluster.tcpudp_port_pool: |
487 | b2fddf63 | Iustin Pop | port = self._config_data.cluster.tcpudp_port_pool.pop()
|
488 | 264bb3c5 | Michael Hanselmann | else:
|
489 | 264bb3c5 | Michael Hanselmann | port = self._config_data.cluster.highest_used_port + 1 |
490 | 264bb3c5 | Michael Hanselmann | if port >= constants.LAST_DRBD_PORT:
|
491 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("The highest used port is greater" |
492 | 3ecf6786 | Iustin Pop | " than %s. Aborting." %
|
493 | 3ecf6786 | Iustin Pop | constants.LAST_DRBD_PORT) |
494 | 264bb3c5 | Michael Hanselmann | self._config_data.cluster.highest_used_port = port
|
495 | a8083063 | Iustin Pop | |
496 | a8083063 | Iustin Pop | self._WriteConfig()
|
497 | a8083063 | Iustin Pop | return port
|
498 | a8083063 | Iustin Pop | |
499 | 6d2e83d5 | Iustin Pop | def _UnlockedComputeDRBDMap(self): |
500 | a81c53c9 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
501 | a81c53c9 | Iustin Pop |
|
502 | 4a89c54a | Iustin Pop | @rtype: (dict, list)
|
503 | c41eea6e | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
504 | c41eea6e | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
505 | 4a89c54a | Iustin Pop | an empty list), and a list of duplicates; if the duplicates
|
506 | 4a89c54a | Iustin Pop | list is not empty, the configuration is corrupted and its caller
|
507 | 4a89c54a | Iustin Pop | should raise an exception
|
508 | a81c53c9 | Iustin Pop |
|
509 | a81c53c9 | Iustin Pop | """
|
510 | a81c53c9 | Iustin Pop | def _AppendUsedPorts(instance_name, disk, used): |
511 | 4a89c54a | Iustin Pop | duplicates = [] |
512 | f9518d38 | Iustin Pop | if disk.dev_type == constants.LD_DRBD8 and len(disk.logical_id) >= 5: |
513 | 7c4d6c7b | Michael Hanselmann | node_a, node_b, _, minor_a, minor_b = disk.logical_id[:5]
|
514 | 7c4d6c7b | Michael Hanselmann | for node, port in ((node_a, minor_a), (node_b, minor_b)): |
515 | 4a89c54a | Iustin Pop | assert node in used, ("Node '%s' of instance '%s' not found" |
516 | 4a89c54a | Iustin Pop | " in node list" % (node, instance_name))
|
517 | a81c53c9 | Iustin Pop | if port in used[node]: |
518 | 4a89c54a | Iustin Pop | duplicates.append((node, port, instance_name, used[node][port])) |
519 | 4a89c54a | Iustin Pop | else:
|
520 | 4a89c54a | Iustin Pop | used[node][port] = instance_name |
521 | a81c53c9 | Iustin Pop | if disk.children:
|
522 | a81c53c9 | Iustin Pop | for child in disk.children: |
523 | 4a89c54a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance_name, child, used)) |
524 | 4a89c54a | Iustin Pop | return duplicates
|
525 | a81c53c9 | Iustin Pop | |
526 | 4a89c54a | Iustin Pop | duplicates = [] |
527 | a81c53c9 | Iustin Pop | my_dict = dict((node, {}) for node in self._config_data.nodes) |
528 | 79b26a7a | Iustin Pop | for instance in self._config_data.instances.itervalues(): |
529 | 79b26a7a | Iustin Pop | for disk in instance.disks: |
530 | 79b26a7a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance.name, disk, my_dict)) |
531 | a81c53c9 | Iustin Pop | for (node, minor), instance in self._temporary_drbds.iteritems(): |
532 | 79b26a7a | Iustin Pop | if minor in my_dict[node] and my_dict[node][minor] != instance: |
533 | 4a89c54a | Iustin Pop | duplicates.append((node, minor, instance, my_dict[node][minor])) |
534 | 4a89c54a | Iustin Pop | else:
|
535 | 4a89c54a | Iustin Pop | my_dict[node][minor] = instance |
536 | 4a89c54a | Iustin Pop | return my_dict, duplicates
|
537 | a81c53c9 | Iustin Pop | |
538 | a81c53c9 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
539 | 6d2e83d5 | Iustin Pop | def ComputeDRBDMap(self): |
540 | 6d2e83d5 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
541 | 6d2e83d5 | Iustin Pop |
|
542 | 6d2e83d5 | Iustin Pop | This is just a wrapper over L{_UnlockedComputeDRBDMap}.
|
543 | 6d2e83d5 | Iustin Pop |
|
544 | 6d2e83d5 | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
545 | 6d2e83d5 | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
546 | 6d2e83d5 | Iustin Pop | an empty list).
|
547 | 6d2e83d5 | Iustin Pop |
|
548 | 6d2e83d5 | Iustin Pop | """
|
549 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
550 | 4a89c54a | Iustin Pop | if duplicates:
|
551 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
552 | 4a89c54a | Iustin Pop | str(duplicates))
|
553 | 4a89c54a | Iustin Pop | return d_map
|
554 | 6d2e83d5 | Iustin Pop | |
555 | 6d2e83d5 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
556 | a81c53c9 | Iustin Pop | def AllocateDRBDMinor(self, nodes, instance): |
557 | a81c53c9 | Iustin Pop | """Allocate a drbd minor.
|
558 | a81c53c9 | Iustin Pop |
|
559 | a81c53c9 | Iustin Pop | The free minor will be automatically computed from the existing
|
560 | a81c53c9 | Iustin Pop | devices. A node can be given multiple times in order to allocate
|
561 | a81c53c9 | Iustin Pop | multiple minors. The result is the list of minors, in the same
|
562 | a81c53c9 | Iustin Pop | order as the passed nodes.
|
563 | a81c53c9 | Iustin Pop |
|
564 | 32388e6d | Iustin Pop | @type instance: string
|
565 | 32388e6d | Iustin Pop | @param instance: the instance for which we allocate minors
|
566 | 32388e6d | Iustin Pop |
|
567 | a81c53c9 | Iustin Pop | """
|
568 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
569 | 4a89c54a | Iustin Pop | "Invalid argument '%s' passed to AllocateDRBDMinor" % instance
|
570 | 32388e6d | Iustin Pop | |
571 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
572 | 4a89c54a | Iustin Pop | if duplicates:
|
573 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
574 | 4a89c54a | Iustin Pop | str(duplicates))
|
575 | a81c53c9 | Iustin Pop | result = [] |
576 | a81c53c9 | Iustin Pop | for nname in nodes: |
577 | a81c53c9 | Iustin Pop | ndata = d_map[nname] |
578 | a81c53c9 | Iustin Pop | if not ndata: |
579 | a81c53c9 | Iustin Pop | # no minors used, we can start at 0
|
580 | a81c53c9 | Iustin Pop | result.append(0)
|
581 | a81c53c9 | Iustin Pop | ndata[0] = instance
|
582 | d48663e4 | Iustin Pop | self._temporary_drbds[(nname, 0)] = instance |
583 | a81c53c9 | Iustin Pop | continue
|
584 | a81c53c9 | Iustin Pop | keys = ndata.keys() |
585 | a81c53c9 | Iustin Pop | keys.sort() |
586 | a81c53c9 | Iustin Pop | ffree = utils.FirstFree(keys) |
587 | a81c53c9 | Iustin Pop | if ffree is None: |
588 | a81c53c9 | Iustin Pop | # return the next minor
|
589 | a81c53c9 | Iustin Pop | # TODO: implement high-limit check
|
590 | a81c53c9 | Iustin Pop | minor = keys[-1] + 1 |
591 | a81c53c9 | Iustin Pop | else:
|
592 | a81c53c9 | Iustin Pop | minor = ffree |
593 | 4a89c54a | Iustin Pop | # double-check minor against current instances
|
594 | 4a89c54a | Iustin Pop | assert minor not in d_map[nname], \ |
595 | 4a89c54a | Iustin Pop | ("Attempt to reuse allocated DRBD minor %d on node %s,"
|
596 | 4a89c54a | Iustin Pop | " already allocated to instance %s" %
|
597 | 4a89c54a | Iustin Pop | (minor, nname, d_map[nname][minor])) |
598 | a81c53c9 | Iustin Pop | ndata[minor] = instance |
599 | 4a89c54a | Iustin Pop | # double-check minor against reservation
|
600 | 4a89c54a | Iustin Pop | r_key = (nname, minor) |
601 | 4a89c54a | Iustin Pop | assert r_key not in self._temporary_drbds, \ |
602 | 4a89c54a | Iustin Pop | ("Attempt to reuse reserved DRBD minor %d on node %s,"
|
603 | 4a89c54a | Iustin Pop | " reserved for instance %s" %
|
604 | 4a89c54a | Iustin Pop | (minor, nname, self._temporary_drbds[r_key]))
|
605 | 4a89c54a | Iustin Pop | self._temporary_drbds[r_key] = instance
|
606 | 4a89c54a | Iustin Pop | result.append(minor) |
607 | a81c53c9 | Iustin Pop | logging.debug("Request to allocate drbd minors, input: %s, returning %s",
|
608 | a81c53c9 | Iustin Pop | nodes, result) |
609 | a81c53c9 | Iustin Pop | return result
|
610 | a81c53c9 | Iustin Pop | |
611 | 61cf6b5e | Iustin Pop | def _UnlockedReleaseDRBDMinors(self, instance): |
612 | a81c53c9 | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
613 | a81c53c9 | Iustin Pop |
|
614 | a81c53c9 | Iustin Pop | @type instance: string
|
615 | a81c53c9 | Iustin Pop | @param instance: the instance for which temporary minors should be
|
616 | a81c53c9 | Iustin Pop | released
|
617 | a81c53c9 | Iustin Pop |
|
618 | a81c53c9 | Iustin Pop | """
|
619 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
620 | 32388e6d | Iustin Pop | "Invalid argument passed to ReleaseDRBDMinors"
|
621 | a81c53c9 | Iustin Pop | for key, name in self._temporary_drbds.items(): |
622 | a81c53c9 | Iustin Pop | if name == instance:
|
623 | a81c53c9 | Iustin Pop | del self._temporary_drbds[key] |
624 | a81c53c9 | Iustin Pop | |
625 | 61cf6b5e | Iustin Pop | @locking.ssynchronized(_config_lock)
|
626 | 61cf6b5e | Iustin Pop | def ReleaseDRBDMinors(self, instance): |
627 | 61cf6b5e | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
628 | 61cf6b5e | Iustin Pop |
|
629 | 61cf6b5e | Iustin Pop | This should be called on the error paths, on the success paths
|
630 | 61cf6b5e | Iustin Pop | it's automatically called by the ConfigWriter add and update
|
631 | 61cf6b5e | Iustin Pop | functions.
|
632 | 61cf6b5e | Iustin Pop |
|
633 | 61cf6b5e | Iustin Pop | This function is just a wrapper over L{_UnlockedReleaseDRBDMinors}.
|
634 | 61cf6b5e | Iustin Pop |
|
635 | 61cf6b5e | Iustin Pop | @type instance: string
|
636 | 61cf6b5e | Iustin Pop | @param instance: the instance for which temporary minors should be
|
637 | 61cf6b5e | Iustin Pop | released
|
638 | 61cf6b5e | Iustin Pop |
|
639 | 61cf6b5e | Iustin Pop | """
|
640 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance)
|
641 | 61cf6b5e | Iustin Pop | |
642 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
643 | 4a8b186a | Michael Hanselmann | def GetConfigVersion(self): |
644 | 4a8b186a | Michael Hanselmann | """Get the configuration version.
|
645 | 4a8b186a | Michael Hanselmann |
|
646 | 4a8b186a | Michael Hanselmann | @return: Config version
|
647 | 4a8b186a | Michael Hanselmann |
|
648 | 4a8b186a | Michael Hanselmann | """
|
649 | 4a8b186a | Michael Hanselmann | return self._config_data.version |
650 | 4a8b186a | Michael Hanselmann | |
651 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
652 | 4a8b186a | Michael Hanselmann | def GetClusterName(self): |
653 | 4a8b186a | Michael Hanselmann | """Get cluster name.
|
654 | 4a8b186a | Michael Hanselmann |
|
655 | 4a8b186a | Michael Hanselmann | @return: Cluster name
|
656 | 4a8b186a | Michael Hanselmann |
|
657 | 4a8b186a | Michael Hanselmann | """
|
658 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.cluster_name |
659 | 4a8b186a | Michael Hanselmann | |
660 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
661 | 4a8b186a | Michael Hanselmann | def GetMasterNode(self): |
662 | 4a8b186a | Michael Hanselmann | """Get the hostname of the master node for this cluster.
|
663 | 4a8b186a | Michael Hanselmann |
|
664 | 4a8b186a | Michael Hanselmann | @return: Master hostname
|
665 | 4a8b186a | Michael Hanselmann |
|
666 | 4a8b186a | Michael Hanselmann | """
|
667 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_node |
668 | 4a8b186a | Michael Hanselmann | |
669 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
670 | 4a8b186a | Michael Hanselmann | def GetMasterIP(self): |
671 | 4a8b186a | Michael Hanselmann | """Get the IP of the master node for this cluster.
|
672 | 4a8b186a | Michael Hanselmann |
|
673 | 4a8b186a | Michael Hanselmann | @return: Master IP
|
674 | 4a8b186a | Michael Hanselmann |
|
675 | 4a8b186a | Michael Hanselmann | """
|
676 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_ip |
677 | 4a8b186a | Michael Hanselmann | |
678 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
679 | 4a8b186a | Michael Hanselmann | def GetMasterNetdev(self): |
680 | 4a8b186a | Michael Hanselmann | """Get the master network device for this cluster.
|
681 | 4a8b186a | Michael Hanselmann |
|
682 | 4a8b186a | Michael Hanselmann | """
|
683 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_netdev |
684 | 4a8b186a | Michael Hanselmann | |
685 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
686 | 4a8b186a | Michael Hanselmann | def GetFileStorageDir(self): |
687 | 4a8b186a | Michael Hanselmann | """Get the file storage dir for this cluster.
|
688 | 4a8b186a | Michael Hanselmann |
|
689 | 4a8b186a | Michael Hanselmann | """
|
690 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.file_storage_dir |
691 | 4a8b186a | Michael Hanselmann | |
692 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
693 | 4a8b186a | Michael Hanselmann | def GetHypervisorType(self): |
694 | 4a8b186a | Michael Hanselmann | """Get the hypervisor type for this cluster.
|
695 | 4a8b186a | Michael Hanselmann |
|
696 | 4a8b186a | Michael Hanselmann | """
|
697 | 066f465d | Guido Trotter | return self._config_data.cluster.enabled_hypervisors[0] |
698 | 4a8b186a | Michael Hanselmann | |
699 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
700 | a8083063 | Iustin Pop | def GetHostKey(self): |
701 | a8083063 | Iustin Pop | """Return the rsa hostkey from the config.
|
702 | a8083063 | Iustin Pop |
|
703 | c41eea6e | Iustin Pop | @rtype: string
|
704 | c41eea6e | Iustin Pop | @return: the rsa hostkey
|
705 | a8083063 | Iustin Pop |
|
706 | a8083063 | Iustin Pop | """
|
707 | a8083063 | Iustin Pop | return self._config_data.cluster.rsahostkeypub |
708 | a8083063 | Iustin Pop | |
709 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
710 | a8083063 | Iustin Pop | def AddInstance(self, instance): |
711 | a8083063 | Iustin Pop | """Add an instance to the config.
|
712 | a8083063 | Iustin Pop |
|
713 | a8083063 | Iustin Pop | This should be used after creating a new instance.
|
714 | a8083063 | Iustin Pop |
|
715 | c41eea6e | Iustin Pop | @type instance: L{objects.Instance}
|
716 | c41eea6e | Iustin Pop | @param instance: the instance object
|
717 | c41eea6e | Iustin Pop |
|
718 | a8083063 | Iustin Pop | """
|
719 | a8083063 | Iustin Pop | if not isinstance(instance, objects.Instance): |
720 | a8083063 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed to AddInstance") |
721 | a8083063 | Iustin Pop | |
722 | e00fb268 | Iustin Pop | if instance.disk_template != constants.DT_DISKLESS:
|
723 | e00fb268 | Iustin Pop | all_lvs = instance.MapLVsByNode() |
724 | 74a48621 | Iustin Pop | logging.info("Instance '%s' DISK_LAYOUT: %s", instance.name, all_lvs)
|
725 | 923b1523 | Iustin Pop | |
726 | e4640214 | Guido Trotter | all_macs = self._AllMACs()
|
727 | e4640214 | Guido Trotter | for nic in instance.nics: |
728 | e4640214 | Guido Trotter | if nic.mac in all_macs: |
729 | e4640214 | Guido Trotter | raise errors.ConfigurationError("Cannot add instance %s:" |
730 | e4640214 | Guido Trotter | " MAC address '%s' already in use." % (instance.name, nic.mac))
|
731 | e4640214 | Guido Trotter | |
732 | b989e85d | Iustin Pop | instance.serial_no = 1
|
733 | d693c864 | Iustin Pop | instance.ctime = instance.mtime = time.time() |
734 | a8083063 | Iustin Pop | self._config_data.instances[instance.name] = instance
|
735 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
736 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance.name)
|
737 | e7d81ba0 | Iustin Pop | for nic in instance.nics: |
738 | e7d81ba0 | Iustin Pop | self._temporary_macs.discard(nic.mac)
|
739 | a8083063 | Iustin Pop | self._WriteConfig()
|
740 | a8083063 | Iustin Pop | |
741 | 6a408fb2 | Iustin Pop | def _SetInstanceStatus(self, instance_name, status): |
742 | 6a408fb2 | Iustin Pop | """Set the instance's status to a given value.
|
743 | a8083063 | Iustin Pop |
|
744 | a8083063 | Iustin Pop | """
|
745 | 0d68c45d | Iustin Pop | assert isinstance(status, bool), \ |
746 | 0d68c45d | Iustin Pop | "Invalid status '%s' passed to SetInstanceStatus" % (status,)
|
747 | a8083063 | Iustin Pop | |
748 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
749 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % |
750 | 3ecf6786 | Iustin Pop | instance_name) |
751 | a8083063 | Iustin Pop | instance = self._config_data.instances[instance_name]
|
752 | 0d68c45d | Iustin Pop | if instance.admin_up != status:
|
753 | 0d68c45d | Iustin Pop | instance.admin_up = status |
754 | b989e85d | Iustin Pop | instance.serial_no += 1
|
755 | d693c864 | Iustin Pop | instance.mtime = time.time() |
756 | 455a3445 | Iustin Pop | self._WriteConfig()
|
757 | a8083063 | Iustin Pop | |
758 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
759 | 6a408fb2 | Iustin Pop | def MarkInstanceUp(self, instance_name): |
760 | 6a408fb2 | Iustin Pop | """Mark the instance status to up in the config.
|
761 | 6a408fb2 | Iustin Pop |
|
762 | 6a408fb2 | Iustin Pop | """
|
763 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, True) |
764 | 6a408fb2 | Iustin Pop | |
765 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
766 | a8083063 | Iustin Pop | def RemoveInstance(self, instance_name): |
767 | a8083063 | Iustin Pop | """Remove the instance from the configuration.
|
768 | a8083063 | Iustin Pop |
|
769 | a8083063 | Iustin Pop | """
|
770 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
771 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % instance_name) |
772 | a8083063 | Iustin Pop | del self._config_data.instances[instance_name] |
773 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
774 | a8083063 | Iustin Pop | self._WriteConfig()
|
775 | a8083063 | Iustin Pop | |
776 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
777 | fc95f88f | Iustin Pop | def RenameInstance(self, old_name, new_name): |
778 | fc95f88f | Iustin Pop | """Rename an instance.
|
779 | fc95f88f | Iustin Pop |
|
780 | fc95f88f | Iustin Pop | This needs to be done in ConfigWriter and not by RemoveInstance
|
781 | fc95f88f | Iustin Pop | combined with AddInstance as only we can guarantee an atomic
|
782 | fc95f88f | Iustin Pop | rename.
|
783 | fc95f88f | Iustin Pop |
|
784 | fc95f88f | Iustin Pop | """
|
785 | fc95f88f | Iustin Pop | if old_name not in self._config_data.instances: |
786 | fc95f88f | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % old_name) |
787 | fc95f88f | Iustin Pop | inst = self._config_data.instances[old_name]
|
788 | fc95f88f | Iustin Pop | del self._config_data.instances[old_name] |
789 | fc95f88f | Iustin Pop | inst.name = new_name |
790 | b23c4333 | Manuel Franceschini | |
791 | b23c4333 | Manuel Franceschini | for disk in inst.disks: |
792 | b23c4333 | Manuel Franceschini | if disk.dev_type == constants.LD_FILE:
|
793 | b23c4333 | Manuel Franceschini | # rename the file paths in logical and physical id
|
794 | b23c4333 | Manuel Franceschini | file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1]))
|
795 | b23c4333 | Manuel Franceschini | disk.physical_id = disk.logical_id = (disk.logical_id[0],
|
796 | b23c4333 | Manuel Franceschini | os.path.join(file_storage_dir, |
797 | b23c4333 | Manuel Franceschini | inst.name, |
798 | b23c4333 | Manuel Franceschini | disk.iv_name)) |
799 | b23c4333 | Manuel Franceschini | |
800 | fc95f88f | Iustin Pop | self._config_data.instances[inst.name] = inst
|
801 | fc95f88f | Iustin Pop | self._WriteConfig()
|
802 | fc95f88f | Iustin Pop | |
803 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
804 | a8083063 | Iustin Pop | def MarkInstanceDown(self, instance_name): |
805 | a8083063 | Iustin Pop | """Mark the status of an instance to down in the configuration.
|
806 | a8083063 | Iustin Pop |
|
807 | a8083063 | Iustin Pop | """
|
808 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, False) |
809 | a8083063 | Iustin Pop | |
810 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceList(self): |
811 | 94bbfece | Iustin Pop | """Get the list of instances.
|
812 | 94bbfece | Iustin Pop |
|
813 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
814 | 94bbfece | Iustin Pop |
|
815 | 94bbfece | Iustin Pop | """
|
816 | 94bbfece | Iustin Pop | return self._config_data.instances.keys() |
817 | 94bbfece | Iustin Pop | |
818 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
819 | a8083063 | Iustin Pop | def GetInstanceList(self): |
820 | a8083063 | Iustin Pop | """Get the list of instances.
|
821 | a8083063 | Iustin Pop |
|
822 | c41eea6e | Iustin Pop | @return: array of instances, ex. ['instance2.example.com',
|
823 | c41eea6e | Iustin Pop | 'instance1.example.com']
|
824 | a8083063 | Iustin Pop |
|
825 | a8083063 | Iustin Pop | """
|
826 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceList() |
827 | a8083063 | Iustin Pop | |
828 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
829 | a8083063 | Iustin Pop | def ExpandInstanceName(self, short_name): |
830 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
831 | a8083063 | Iustin Pop |
|
832 | a8083063 | Iustin Pop | """
|
833 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
834 | a8083063 | Iustin Pop | self._config_data.instances.keys())
|
835 | a8083063 | Iustin Pop | |
836 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceInfo(self, instance_name): |
837 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
838 | 94bbfece | Iustin Pop |
|
839 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
840 | 94bbfece | Iustin Pop |
|
841 | 94bbfece | Iustin Pop | """
|
842 | 94bbfece | Iustin Pop | if instance_name not in self._config_data.instances: |
843 | 94bbfece | Iustin Pop | return None |
844 | 94bbfece | Iustin Pop | |
845 | 94bbfece | Iustin Pop | return self._config_data.instances[instance_name] |
846 | 94bbfece | Iustin Pop | |
847 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
848 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
849 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
850 | a8083063 | Iustin Pop |
|
851 | 5bbd3f7f | Michael Hanselmann | It takes the information from the configuration file. Other information of
|
852 | a8083063 | Iustin Pop | an instance are taken from the live systems.
|
853 | a8083063 | Iustin Pop |
|
854 | c41eea6e | Iustin Pop | @param instance_name: name of the instance, e.g.
|
855 | c41eea6e | Iustin Pop | I{instance1.example.com}
|
856 | a8083063 | Iustin Pop |
|
857 | c41eea6e | Iustin Pop | @rtype: L{objects.Instance}
|
858 | c41eea6e | Iustin Pop | @return: the instance object
|
859 | a8083063 | Iustin Pop |
|
860 | a8083063 | Iustin Pop | """
|
861 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceInfo(instance_name) |
862 | a8083063 | Iustin Pop | |
863 | 0b2de758 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
864 | 0b2de758 | Iustin Pop | def GetAllInstancesInfo(self): |
865 | 0b2de758 | Iustin Pop | """Get the configuration of all instances.
|
866 | 0b2de758 | Iustin Pop |
|
867 | 0b2de758 | Iustin Pop | @rtype: dict
|
868 | 5fcc718f | Iustin Pop | @return: dict of (instance, instance_info), where instance_info is what
|
869 | 0b2de758 | Iustin Pop | would GetInstanceInfo return for the node
|
870 | 0b2de758 | Iustin Pop |
|
871 | 0b2de758 | Iustin Pop | """
|
872 | 64d3bd52 | Guido Trotter | my_dict = dict([(instance, self._UnlockedGetInstanceInfo(instance)) |
873 | 64d3bd52 | Guido Trotter | for instance in self._UnlockedGetInstanceList()]) |
874 | 0b2de758 | Iustin Pop | return my_dict
|
875 | 0b2de758 | Iustin Pop | |
876 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
877 | a8083063 | Iustin Pop | def AddNode(self, node): |
878 | a8083063 | Iustin Pop | """Add a node to the configuration.
|
879 | a8083063 | Iustin Pop |
|
880 | c41eea6e | Iustin Pop | @type node: L{objects.Node}
|
881 | c41eea6e | Iustin Pop | @param node: a Node instance
|
882 | a8083063 | Iustin Pop |
|
883 | a8083063 | Iustin Pop | """
|
884 | d8470559 | Michael Hanselmann | logging.info("Adding node %s to configuration" % node.name)
|
885 | d8470559 | Michael Hanselmann | |
886 | b989e85d | Iustin Pop | node.serial_no = 1
|
887 | d693c864 | Iustin Pop | node.ctime = node.mtime = time.time() |
888 | a8083063 | Iustin Pop | self._config_data.nodes[node.name] = node
|
889 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
890 | a8083063 | Iustin Pop | self._WriteConfig()
|
891 | a8083063 | Iustin Pop | |
892 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
893 | a8083063 | Iustin Pop | def RemoveNode(self, node_name): |
894 | a8083063 | Iustin Pop | """Remove a node from the configuration.
|
895 | a8083063 | Iustin Pop |
|
896 | a8083063 | Iustin Pop | """
|
897 | d8470559 | Michael Hanselmann | logging.info("Removing node %s from configuration" % node_name)
|
898 | d8470559 | Michael Hanselmann | |
899 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
900 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown node '%s'" % node_name) |
901 | a8083063 | Iustin Pop | |
902 | a8083063 | Iustin Pop | del self._config_data.nodes[node_name] |
903 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
904 | a8083063 | Iustin Pop | self._WriteConfig()
|
905 | a8083063 | Iustin Pop | |
906 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
907 | a8083063 | Iustin Pop | def ExpandNodeName(self, short_name): |
908 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
909 | a8083063 | Iustin Pop |
|
910 | a8083063 | Iustin Pop | """
|
911 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
912 | a8083063 | Iustin Pop | self._config_data.nodes.keys())
|
913 | a8083063 | Iustin Pop | |
914 | f78ede4e | Guido Trotter | def _UnlockedGetNodeInfo(self, node_name): |
915 | a8083063 | Iustin Pop | """Get the configuration of a node, as stored in the config.
|
916 | a8083063 | Iustin Pop |
|
917 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
918 | c41eea6e | Iustin Pop | held.
|
919 | f78ede4e | Guido Trotter |
|
920 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
921 | a8083063 | Iustin Pop |
|
922 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
923 | c41eea6e | Iustin Pop | @return: the node object
|
924 | a8083063 | Iustin Pop |
|
925 | a8083063 | Iustin Pop | """
|
926 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
927 | a8083063 | Iustin Pop | return None |
928 | a8083063 | Iustin Pop | |
929 | a8083063 | Iustin Pop | return self._config_data.nodes[node_name] |
930 | a8083063 | Iustin Pop | |
931 | f78ede4e | Guido Trotter | |
932 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
933 | f78ede4e | Guido Trotter | def GetNodeInfo(self, node_name): |
934 | f78ede4e | Guido Trotter | """Get the configuration of a node, as stored in the config.
|
935 | f78ede4e | Guido Trotter |
|
936 | c41eea6e | Iustin Pop | This is just a locked wrapper over L{_UnlockedGetNodeInfo}.
|
937 | f78ede4e | Guido Trotter |
|
938 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
939 | c41eea6e | Iustin Pop |
|
940 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
941 | c41eea6e | Iustin Pop | @return: the node object
|
942 | f78ede4e | Guido Trotter |
|
943 | f78ede4e | Guido Trotter | """
|
944 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeInfo(node_name) |
945 | f78ede4e | Guido Trotter | |
946 | f78ede4e | Guido Trotter | def _UnlockedGetNodeList(self): |
947 | a8083063 | Iustin Pop | """Return the list of nodes which are in the configuration.
|
948 | a8083063 | Iustin Pop |
|
949 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
950 | c41eea6e | Iustin Pop | held.
|
951 | c41eea6e | Iustin Pop |
|
952 | c41eea6e | Iustin Pop | @rtype: list
|
953 | f78ede4e | Guido Trotter |
|
954 | a8083063 | Iustin Pop | """
|
955 | a8083063 | Iustin Pop | return self._config_data.nodes.keys() |
956 | a8083063 | Iustin Pop | |
957 | f78ede4e | Guido Trotter | |
958 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
959 | f78ede4e | Guido Trotter | def GetNodeList(self): |
960 | f78ede4e | Guido Trotter | """Return the list of nodes which are in the configuration.
|
961 | f78ede4e | Guido Trotter |
|
962 | f78ede4e | Guido Trotter | """
|
963 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeList() |
964 | f78ede4e | Guido Trotter | |
965 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
966 | 94a02bb5 | Iustin Pop | def GetOnlineNodeList(self): |
967 | 94a02bb5 | Iustin Pop | """Return the list of nodes which are online.
|
968 | 94a02bb5 | Iustin Pop |
|
969 | 94a02bb5 | Iustin Pop | """
|
970 | 94a02bb5 | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
971 | 94a02bb5 | Iustin Pop | for node in self._UnlockedGetNodeList()] |
972 | 94a02bb5 | Iustin Pop | return [node.name for node in all_nodes if not node.offline] |
973 | 94a02bb5 | Iustin Pop | |
974 | 94a02bb5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
975 | d65e5776 | Iustin Pop | def GetAllNodesInfo(self): |
976 | d65e5776 | Iustin Pop | """Get the configuration of all nodes.
|
977 | d65e5776 | Iustin Pop |
|
978 | d65e5776 | Iustin Pop | @rtype: dict
|
979 | ec0292f1 | Iustin Pop | @return: dict of (node, node_info), where node_info is what
|
980 | d65e5776 | Iustin Pop | would GetNodeInfo return for the node
|
981 | d65e5776 | Iustin Pop |
|
982 | d65e5776 | Iustin Pop | """
|
983 | d65e5776 | Iustin Pop | my_dict = dict([(node, self._UnlockedGetNodeInfo(node)) |
984 | d65e5776 | Iustin Pop | for node in self._UnlockedGetNodeList()]) |
985 | d65e5776 | Iustin Pop | return my_dict
|
986 | d65e5776 | Iustin Pop | |
987 | 23f06b2b | Iustin Pop | def _UnlockedGetMasterCandidateStats(self, exceptions=None): |
988 | ec0292f1 | Iustin Pop | """Get the number of current and maximum desired and possible candidates.
|
989 | ec0292f1 | Iustin Pop |
|
990 | 23f06b2b | Iustin Pop | @type exceptions: list
|
991 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
992 | ec0292f1 | Iustin Pop | @rtype: tuple
|
993 | ec0292f1 | Iustin Pop | @return: tuple of (current, desired and possible)
|
994 | ec0292f1 | Iustin Pop |
|
995 | ec0292f1 | Iustin Pop | """
|
996 | ec0292f1 | Iustin Pop | mc_now = mc_max = 0
|
997 | 23f06b2b | Iustin Pop | for node in self._config_data.nodes.values(): |
998 | 23f06b2b | Iustin Pop | if exceptions and node.name in exceptions: |
999 | 23f06b2b | Iustin Pop | continue
|
1000 | 5bf07049 | Iustin Pop | if not (node.offline or node.drained): |
1001 | ec0292f1 | Iustin Pop | mc_max += 1
|
1002 | ec0292f1 | Iustin Pop | if node.master_candidate:
|
1003 | ec0292f1 | Iustin Pop | mc_now += 1
|
1004 | ec0292f1 | Iustin Pop | mc_max = min(mc_max, self._config_data.cluster.candidate_pool_size) |
1005 | ec0292f1 | Iustin Pop | return (mc_now, mc_max)
|
1006 | ec0292f1 | Iustin Pop | |
1007 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1008 | 23f06b2b | Iustin Pop | def GetMasterCandidateStats(self, exceptions=None): |
1009 | ec0292f1 | Iustin Pop | """Get the number of current and maximum possible candidates.
|
1010 | ec0292f1 | Iustin Pop |
|
1011 | ec0292f1 | Iustin Pop | This is just a wrapper over L{_UnlockedGetMasterCandidateStats}.
|
1012 | ec0292f1 | Iustin Pop |
|
1013 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1014 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1015 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1016 | ec0292f1 | Iustin Pop | @return: tuple of (current, max)
|
1017 | ec0292f1 | Iustin Pop |
|
1018 | ec0292f1 | Iustin Pop | """
|
1019 | 23f06b2b | Iustin Pop | return self._UnlockedGetMasterCandidateStats(exceptions) |
1020 | ec0292f1 | Iustin Pop | |
1021 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
1022 | ec0292f1 | Iustin Pop | def MaintainCandidatePool(self): |
1023 | ec0292f1 | Iustin Pop | """Try to grow the candidate pool to the desired size.
|
1024 | ec0292f1 | Iustin Pop |
|
1025 | ec0292f1 | Iustin Pop | @rtype: list
|
1026 | ee513a66 | Iustin Pop | @return: list with the adjusted nodes (L{objects.Node} instances)
|
1027 | ec0292f1 | Iustin Pop |
|
1028 | ec0292f1 | Iustin Pop | """
|
1029 | ec0292f1 | Iustin Pop | mc_now, mc_max = self._UnlockedGetMasterCandidateStats()
|
1030 | ec0292f1 | Iustin Pop | mod_list = [] |
1031 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
1032 | ec0292f1 | Iustin Pop | node_list = self._config_data.nodes.keys()
|
1033 | ec0292f1 | Iustin Pop | random.shuffle(node_list) |
1034 | ec0292f1 | Iustin Pop | for name in node_list: |
1035 | ec0292f1 | Iustin Pop | if mc_now >= mc_max:
|
1036 | ec0292f1 | Iustin Pop | break
|
1037 | ec0292f1 | Iustin Pop | node = self._config_data.nodes[name]
|
1038 | 5bf07049 | Iustin Pop | if node.master_candidate or node.offline or node.drained: |
1039 | ec0292f1 | Iustin Pop | continue
|
1040 | ee513a66 | Iustin Pop | mod_list.append(node) |
1041 | ec0292f1 | Iustin Pop | node.master_candidate = True
|
1042 | ec0292f1 | Iustin Pop | node.serial_no += 1
|
1043 | ec0292f1 | Iustin Pop | mc_now += 1
|
1044 | ec0292f1 | Iustin Pop | if mc_now != mc_max:
|
1045 | ec0292f1 | Iustin Pop | # this should not happen
|
1046 | ec0292f1 | Iustin Pop | logging.warning("Warning: MaintainCandidatePool didn't manage to"
|
1047 | ec0292f1 | Iustin Pop | " fill the candidate pool (%d/%d)", mc_now, mc_max)
|
1048 | ec0292f1 | Iustin Pop | if mod_list:
|
1049 | ec0292f1 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1050 | ec0292f1 | Iustin Pop | self._WriteConfig()
|
1051 | ec0292f1 | Iustin Pop | |
1052 | ec0292f1 | Iustin Pop | return mod_list
|
1053 | ec0292f1 | Iustin Pop | |
1054 | a8083063 | Iustin Pop | def _BumpSerialNo(self): |
1055 | a8083063 | Iustin Pop | """Bump up the serial number of the config.
|
1056 | a8083063 | Iustin Pop |
|
1057 | a8083063 | Iustin Pop | """
|
1058 | 9d38c6e1 | Iustin Pop | self._config_data.serial_no += 1 |
1059 | d693c864 | Iustin Pop | self._config_data.mtime = time.time()
|
1060 | a8083063 | Iustin Pop | |
1061 | 76d5d3a3 | Iustin Pop | def _AllUUIDObjects(self): |
1062 | 76d5d3a3 | Iustin Pop | """Returns all objects with uuid attributes.
|
1063 | 76d5d3a3 | Iustin Pop |
|
1064 | 76d5d3a3 | Iustin Pop | """
|
1065 | 76d5d3a3 | Iustin Pop | return (self._config_data.instances.values() + |
1066 | 76d5d3a3 | Iustin Pop | self._config_data.nodes.values() +
|
1067 | 76d5d3a3 | Iustin Pop | [self._config_data.cluster])
|
1068 | 76d5d3a3 | Iustin Pop | |
1069 | a8083063 | Iustin Pop | def _OpenConfig(self): |
1070 | a8083063 | Iustin Pop | """Read the config data from disk.
|
1071 | a8083063 | Iustin Pop |
|
1072 | a8083063 | Iustin Pop | """
|
1073 | 13998ef2 | Michael Hanselmann | raw_data = utils.ReadFile(self._cfg_file)
|
1074 | 13998ef2 | Michael Hanselmann | |
1075 | a8083063 | Iustin Pop | try:
|
1076 | 13998ef2 | Michael Hanselmann | data = objects.ConfigData.FromDict(serializer.Load(raw_data)) |
1077 | 13998ef2 | Michael Hanselmann | except Exception, err: |
1078 | 13998ef2 | Michael Hanselmann | raise errors.ConfigurationError(err)
|
1079 | 5b263ed7 | Michael Hanselmann | |
1080 | 5b263ed7 | Michael Hanselmann | # Make sure the configuration has the right version
|
1081 | 5b263ed7 | Michael Hanselmann | _ValidateConfig(data) |
1082 | 5b263ed7 | Michael Hanselmann | |
1083 | a8083063 | Iustin Pop | if (not hasattr(data, 'cluster') or |
1084 | 243cdbcc | Michael Hanselmann | not hasattr(data.cluster, 'rsahostkeypub')): |
1085 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Incomplete configuration" |
1086 | 243cdbcc | Michael Hanselmann | " (missing cluster.rsahostkeypub)")
|
1087 | 90d726a8 | Iustin Pop | |
1088 | 90d726a8 | Iustin Pop | # Upgrade configuration if needed
|
1089 | 90d726a8 | Iustin Pop | data.UpgradeConfig() |
1090 | 90d726a8 | Iustin Pop | |
1091 | a8083063 | Iustin Pop | self._config_data = data
|
1092 | 3c7f6c44 | Iustin Pop | # reset the last serial as -1 so that the next write will cause
|
1093 | 0779e3aa | Iustin Pop | # ssconf update
|
1094 | 0779e3aa | Iustin Pop | self._last_cluster_serial = -1 |
1095 | a8083063 | Iustin Pop | |
1096 | 76d5d3a3 | Iustin Pop | # And finally run our (custom) config upgrade sequence
|
1097 | 76d5d3a3 | Iustin Pop | self._UpgradeConfig()
|
1098 | 76d5d3a3 | Iustin Pop | |
1099 | 76d5d3a3 | Iustin Pop | def _UpgradeConfig(self): |
1100 | 76d5d3a3 | Iustin Pop | """Run upgrade steps that cannot be done purely in the objects.
|
1101 | 76d5d3a3 | Iustin Pop |
|
1102 | 76d5d3a3 | Iustin Pop | This is because some data elements need uniqueness across the
|
1103 | 76d5d3a3 | Iustin Pop | whole configuration, etc.
|
1104 | 76d5d3a3 | Iustin Pop |
|
1105 | 76d5d3a3 | Iustin Pop | @warning: this function will call L{_WriteConfig()}, so it needs
|
1106 | 76d5d3a3 | Iustin Pop | to either be called with the lock held or from a safe place
|
1107 | 76d5d3a3 | Iustin Pop | (the constructor)
|
1108 | 76d5d3a3 | Iustin Pop |
|
1109 | 76d5d3a3 | Iustin Pop | """
|
1110 | 76d5d3a3 | Iustin Pop | modified = False
|
1111 | 76d5d3a3 | Iustin Pop | for item in self._AllUUIDObjects(): |
1112 | 76d5d3a3 | Iustin Pop | if item.uuid is None: |
1113 | 76d5d3a3 | Iustin Pop | item.uuid = self.GenerateUniqueID()
|
1114 | 76d5d3a3 | Iustin Pop | modified = True
|
1115 | 76d5d3a3 | Iustin Pop | if modified:
|
1116 | 76d5d3a3 | Iustin Pop | self._WriteConfig()
|
1117 | 76d5d3a3 | Iustin Pop | |
1118 | a8083063 | Iustin Pop | def _DistributeConfig(self): |
1119 | a8083063 | Iustin Pop | """Distribute the configuration to the other nodes.
|
1120 | a8083063 | Iustin Pop |
|
1121 | a8083063 | Iustin Pop | Currently, this only copies the configuration file. In the future,
|
1122 | a8083063 | Iustin Pop | it could be used to encapsulate the 2/3-phase update mechanism.
|
1123 | a8083063 | Iustin Pop |
|
1124 | a8083063 | Iustin Pop | """
|
1125 | a8083063 | Iustin Pop | if self._offline: |
1126 | a8083063 | Iustin Pop | return True |
1127 | a8083063 | Iustin Pop | bad = False
|
1128 | a8083063 | Iustin Pop | |
1129 | 6a5b8b4b | Iustin Pop | node_list = [] |
1130 | 6a5b8b4b | Iustin Pop | addr_list = [] |
1131 | 6a5b8b4b | Iustin Pop | myhostname = self._my_hostname
|
1132 | 6b294c53 | Iustin Pop | # we can skip checking whether _UnlockedGetNodeInfo returns None
|
1133 | 6b294c53 | Iustin Pop | # since the node list comes from _UnlocketGetNodeList, and we are
|
1134 | 6b294c53 | Iustin Pop | # called with the lock held, so no modifications should take place
|
1135 | 6b294c53 | Iustin Pop | # in between
|
1136 | 6a5b8b4b | Iustin Pop | for node_name in self._UnlockedGetNodeList(): |
1137 | 6a5b8b4b | Iustin Pop | if node_name == myhostname:
|
1138 | 6a5b8b4b | Iustin Pop | continue
|
1139 | 6a5b8b4b | Iustin Pop | node_info = self._UnlockedGetNodeInfo(node_name)
|
1140 | 6a5b8b4b | Iustin Pop | if not node_info.master_candidate: |
1141 | 6a5b8b4b | Iustin Pop | continue
|
1142 | 6a5b8b4b | Iustin Pop | node_list.append(node_info.name) |
1143 | 6a5b8b4b | Iustin Pop | addr_list.append(node_info.primary_ip) |
1144 | 6b294c53 | Iustin Pop | |
1145 | 6a5b8b4b | Iustin Pop | result = rpc.RpcRunner.call_upload_file(node_list, self._cfg_file,
|
1146 | 6a5b8b4b | Iustin Pop | address_list=addr_list) |
1147 | 1b54fc6c | Guido Trotter | for to_node, to_result in result.items(): |
1148 | 3cebe102 | Michael Hanselmann | msg = to_result.fail_msg |
1149 | 1b54fc6c | Guido Trotter | if msg:
|
1150 | 1b54fc6c | Guido Trotter | msg = ("Copy of file %s to node %s failed: %s" %
|
1151 | dd7db360 | Iustin Pop | (self._cfg_file, to_node, msg))
|
1152 | 1b54fc6c | Guido Trotter | logging.error(msg) |
1153 | a8083063 | Iustin Pop | bad = True
|
1154 | a8083063 | Iustin Pop | return not bad |
1155 | a8083063 | Iustin Pop | |
1156 | a8083063 | Iustin Pop | def _WriteConfig(self, destination=None): |
1157 | a8083063 | Iustin Pop | """Write the configuration data to persistent storage.
|
1158 | a8083063 | Iustin Pop |
|
1159 | a8083063 | Iustin Pop | """
|
1160 | 34d657ba | Iustin Pop | # first, cleanup the _temporary_ids set, if an ID is now in the
|
1161 | 34d657ba | Iustin Pop | # other objects it should be discarded to prevent unbounded growth
|
1162 | 34d657ba | Iustin Pop | # of that structure
|
1163 | 34d657ba | Iustin Pop | self._CleanupTemporaryIDs()
|
1164 | 4a89c54a | Iustin Pop | config_errors = self._UnlockedVerifyConfig()
|
1165 | 4a89c54a | Iustin Pop | if config_errors:
|
1166 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Configuration data is not" |
1167 | 4a89c54a | Iustin Pop | " consistent: %s" %
|
1168 | 4a89c54a | Iustin Pop | (", ".join(config_errors)))
|
1169 | a8083063 | Iustin Pop | if destination is None: |
1170 | a8083063 | Iustin Pop | destination = self._cfg_file
|
1171 | a8083063 | Iustin Pop | self._BumpSerialNo()
|
1172 | 8d14b30d | Iustin Pop | txt = serializer.Dump(self._config_data.ToDict())
|
1173 | 13998ef2 | Michael Hanselmann | |
1174 | 13998ef2 | Michael Hanselmann | utils.WriteFile(destination, data=txt) |
1175 | 13998ef2 | Michael Hanselmann | |
1176 | 14e15659 | Iustin Pop | self.write_count += 1 |
1177 | 3d3a04bc | Iustin Pop | |
1178 | f56618e0 | Iustin Pop | # and redistribute the config file to master candidates
|
1179 | a8083063 | Iustin Pop | self._DistributeConfig()
|
1180 | a8083063 | Iustin Pop | |
1181 | 54d1a06e | Michael Hanselmann | # Write ssconf files on all nodes (including locally)
|
1182 | 0779e3aa | Iustin Pop | if self._last_cluster_serial < self._config_data.cluster.serial_no: |
1183 | d9a855f1 | Michael Hanselmann | if not self._offline: |
1184 | e1e75d00 | Iustin Pop | result = rpc.RpcRunner.call_write_ssconf_files(\ |
1185 | e1e75d00 | Iustin Pop | self._UnlockedGetNodeList(),
|
1186 | e1e75d00 | Iustin Pop | self._UnlockedGetSsconfValues())
|
1187 | e1e75d00 | Iustin Pop | for nname, nresu in result.items(): |
1188 | 3cebe102 | Michael Hanselmann | msg = nresu.fail_msg |
1189 | e1e75d00 | Iustin Pop | if msg:
|
1190 | e1e75d00 | Iustin Pop | logging.warning("Error while uploading ssconf files to"
|
1191 | e1e75d00 | Iustin Pop | " node %s: %s", nname, msg)
|
1192 | 0779e3aa | Iustin Pop | self._last_cluster_serial = self._config_data.cluster.serial_no |
1193 | 54d1a06e | Michael Hanselmann | |
1194 | 03d1dba2 | Michael Hanselmann | def _UnlockedGetSsconfValues(self): |
1195 | 054596f0 | Iustin Pop | """Return the values needed by ssconf.
|
1196 | 054596f0 | Iustin Pop |
|
1197 | 054596f0 | Iustin Pop | @rtype: dict
|
1198 | 054596f0 | Iustin Pop | @return: a dictionary with keys the ssconf names and values their
|
1199 | 054596f0 | Iustin Pop | associated value
|
1200 | 054596f0 | Iustin Pop |
|
1201 | 054596f0 | Iustin Pop | """
|
1202 | a3316e4a | Iustin Pop | fn = "\n".join
|
1203 | 81a49123 | Iustin Pop | instance_names = utils.NiceSort(self._UnlockedGetInstanceList())
|
1204 | a3316e4a | Iustin Pop | node_names = utils.NiceSort(self._UnlockedGetNodeList())
|
1205 | a3316e4a | Iustin Pop | node_info = [self._UnlockedGetNodeInfo(name) for name in node_names] |
1206 | c3029d0a | Luca Bigliardi | node_pri_ips = ["%s %s" % (ninfo.name, ninfo.primary_ip)
|
1207 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1208 | c3029d0a | Luca Bigliardi | node_snd_ips = ["%s %s" % (ninfo.name, ninfo.secondary_ip)
|
1209 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1210 | a3316e4a | Iustin Pop | |
1211 | 81a49123 | Iustin Pop | instance_data = fn(instance_names) |
1212 | a3316e4a | Iustin Pop | off_data = fn(node.name for node in node_info if node.offline) |
1213 | 81a49123 | Iustin Pop | on_data = fn(node.name for node in node_info if not node.offline) |
1214 | a3316e4a | Iustin Pop | mc_data = fn(node.name for node in node_info if node.master_candidate) |
1215 | 8113a52e | Luca Bigliardi | mc_ips_data = fn(node.primary_ip for node in node_info |
1216 | 8113a52e | Luca Bigliardi | if node.master_candidate)
|
1217 | a3316e4a | Iustin Pop | node_data = fn(node_names) |
1218 | f9780ccd | Luca Bigliardi | node_pri_ips_data = fn(node_pri_ips) |
1219 | f9780ccd | Luca Bigliardi | node_snd_ips_data = fn(node_snd_ips) |
1220 | f56618e0 | Iustin Pop | |
1221 | 054596f0 | Iustin Pop | cluster = self._config_data.cluster
|
1222 | 5d60b3bd | Iustin Pop | cluster_tags = fn(cluster.GetTags()) |
1223 | 03d1dba2 | Michael Hanselmann | return {
|
1224 | 054596f0 | Iustin Pop | constants.SS_CLUSTER_NAME: cluster.cluster_name, |
1225 | 5d60b3bd | Iustin Pop | constants.SS_CLUSTER_TAGS: cluster_tags, |
1226 | 054596f0 | Iustin Pop | constants.SS_FILE_STORAGE_DIR: cluster.file_storage_dir, |
1227 | a3316e4a | Iustin Pop | constants.SS_MASTER_CANDIDATES: mc_data, |
1228 | 8113a52e | Luca Bigliardi | constants.SS_MASTER_CANDIDATES_IPS: mc_ips_data, |
1229 | 054596f0 | Iustin Pop | constants.SS_MASTER_IP: cluster.master_ip, |
1230 | 054596f0 | Iustin Pop | constants.SS_MASTER_NETDEV: cluster.master_netdev, |
1231 | 054596f0 | Iustin Pop | constants.SS_MASTER_NODE: cluster.master_node, |
1232 | a3316e4a | Iustin Pop | constants.SS_NODE_LIST: node_data, |
1233 | f9780ccd | Luca Bigliardi | constants.SS_NODE_PRIMARY_IPS: node_pri_ips_data, |
1234 | f9780ccd | Luca Bigliardi | constants.SS_NODE_SECONDARY_IPS: node_snd_ips_data, |
1235 | a3316e4a | Iustin Pop | constants.SS_OFFLINE_NODES: off_data, |
1236 | 81a49123 | Iustin Pop | constants.SS_ONLINE_NODES: on_data, |
1237 | 81a49123 | Iustin Pop | constants.SS_INSTANCE_LIST: instance_data, |
1238 | 8a113c7a | Iustin Pop | constants.SS_RELEASE_VERSION: constants.RELEASE_VERSION, |
1239 | 03d1dba2 | Michael Hanselmann | } |
1240 | 03d1dba2 | Michael Hanselmann | |
1241 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1242 | a8083063 | Iustin Pop | def GetVGName(self): |
1243 | a8083063 | Iustin Pop | """Return the volume group name.
|
1244 | a8083063 | Iustin Pop |
|
1245 | a8083063 | Iustin Pop | """
|
1246 | a8083063 | Iustin Pop | return self._config_data.cluster.volume_group_name |
1247 | a8083063 | Iustin Pop | |
1248 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1249 | 89ff8e15 | Manuel Franceschini | def SetVGName(self, vg_name): |
1250 | 89ff8e15 | Manuel Franceschini | """Set the volume group name.
|
1251 | 89ff8e15 | Manuel Franceschini |
|
1252 | 89ff8e15 | Manuel Franceschini | """
|
1253 | 2d4011cd | Manuel Franceschini | self._config_data.cluster.volume_group_name = vg_name
|
1254 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1255 | 89ff8e15 | Manuel Franceschini | self._WriteConfig()
|
1256 | 89ff8e15 | Manuel Franceschini | |
1257 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1258 | a8083063 | Iustin Pop | def GetMACPrefix(self): |
1259 | a8083063 | Iustin Pop | """Return the mac prefix.
|
1260 | a8083063 | Iustin Pop |
|
1261 | a8083063 | Iustin Pop | """
|
1262 | a8083063 | Iustin Pop | return self._config_data.cluster.mac_prefix |
1263 | 62779dd0 | Iustin Pop | |
1264 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1265 | 62779dd0 | Iustin Pop | def GetClusterInfo(self): |
1266 | 5bbd3f7f | Michael Hanselmann | """Returns information about the cluster
|
1267 | 62779dd0 | Iustin Pop |
|
1268 | c41eea6e | Iustin Pop | @rtype: L{objects.Cluster}
|
1269 | c41eea6e | Iustin Pop | @return: the cluster object
|
1270 | 62779dd0 | Iustin Pop |
|
1271 | 62779dd0 | Iustin Pop | """
|
1272 | 62779dd0 | Iustin Pop | return self._config_data.cluster |
1273 | e00fb268 | Iustin Pop | |
1274 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1275 | e00fb268 | Iustin Pop | def Update(self, target): |
1276 | e00fb268 | Iustin Pop | """Notify function to be called after updates.
|
1277 | e00fb268 | Iustin Pop |
|
1278 | e00fb268 | Iustin Pop | This function must be called when an object (as returned by
|
1279 | e00fb268 | Iustin Pop | GetInstanceInfo, GetNodeInfo, GetCluster) has been updated and the
|
1280 | e00fb268 | Iustin Pop | caller wants the modifications saved to the backing store. Note
|
1281 | e00fb268 | Iustin Pop | that all modified objects will be saved, but the target argument
|
1282 | e00fb268 | Iustin Pop | is the one the caller wants to ensure that it's saved.
|
1283 | e00fb268 | Iustin Pop |
|
1284 | c41eea6e | Iustin Pop | @param target: an instance of either L{objects.Cluster},
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1285 | c41eea6e | Iustin Pop | L{objects.Node} or L{objects.Instance} which is existing in
|
1286 | c41eea6e | Iustin Pop | the cluster
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1287 | c41eea6e | Iustin Pop |
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1288 | e00fb268 | Iustin Pop | """
|
1289 | e00fb268 | Iustin Pop | if self._config_data is None: |
1290 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Configuration file not read," |
1291 | 3ecf6786 | Iustin Pop | " cannot save.")
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1292 | f34901f8 | Iustin Pop | update_serial = False
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1293 | e00fb268 | Iustin Pop | if isinstance(target, objects.Cluster): |
1294 | e00fb268 | Iustin Pop | test = target == self._config_data.cluster
|
1295 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Node): |
1296 | e00fb268 | Iustin Pop | test = target in self._config_data.nodes.values() |
1297 | f34901f8 | Iustin Pop | update_serial = True
|
1298 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Instance): |
1299 | e00fb268 | Iustin Pop | test = target in self._config_data.instances.values() |
1300 | e00fb268 | Iustin Pop | else:
|
1301 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid object type (%s) passed to" |
1302 | 3ecf6786 | Iustin Pop | " ConfigWriter.Update" % type(target)) |
1303 | e00fb268 | Iustin Pop | if not test: |
1304 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Configuration updated since object" |
1305 | 3ecf6786 | Iustin Pop | " has been read or unknown object")
|
1306 | f34901f8 | Iustin Pop | target.serial_no += 1
|
1307 | d693c864 | Iustin Pop | target.mtime = now = time.time() |
1308 | f34901f8 | Iustin Pop | |
1309 | cff4c037 | Iustin Pop | if update_serial:
|
1310 | f34901f8 | Iustin Pop | # for node updates, we need to increase the cluster serial too
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1311 | f34901f8 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1312 | d693c864 | Iustin Pop | self._config_data.cluster.mtime = now
|
1313 | b989e85d | Iustin Pop | |
1314 | 61cf6b5e | Iustin Pop | if isinstance(target, objects.Instance): |
1315 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(target.name)
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1316 | e7d81ba0 | Iustin Pop | for nic in target.nics: |
1317 | e7d81ba0 | Iustin Pop | self._temporary_macs.discard(nic.mac)
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1318 | 61cf6b5e | Iustin Pop | |
1319 | e00fb268 | Iustin Pop | self._WriteConfig() |