root / lib / config.py @ 34cb5617
History | View | Annotate | Download (43.1 kB)
1 | 2f31098c | Iustin Pop | #
|
---|---|---|---|
2 | a8083063 | Iustin Pop | #
|
3 | a8083063 | Iustin Pop | |
4 | a8083063 | Iustin Pop | # Copyright (C) 2006, 2007 Google Inc.
|
5 | a8083063 | Iustin Pop | #
|
6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
|
7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
|
8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
|
9 | a8083063 | Iustin Pop | # (at your option) any later version.
|
10 | a8083063 | Iustin Pop | #
|
11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
|
12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | a8083063 | Iustin Pop | # General Public License for more details.
|
15 | a8083063 | Iustin Pop | #
|
16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
|
17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
|
18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 | a8083063 | Iustin Pop | # 02110-1301, USA.
|
20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | a8083063 | Iustin Pop | """Configuration management for Ganeti
|
23 | a8083063 | Iustin Pop |
|
24 | 319856a9 | Michael Hanselmann | This module provides the interface to the Ganeti cluster configuration.
|
25 | a8083063 | Iustin Pop |
|
26 | 319856a9 | Michael Hanselmann | The configuration data is stored on every node but is updated on the master
|
27 | 319856a9 | Michael Hanselmann | only. After each update, the master distributes the data to the other nodes.
|
28 | a8083063 | Iustin Pop |
|
29 | 319856a9 | Michael Hanselmann | Currently, the data storage format is JSON. YAML was slow and consuming too
|
30 | 319856a9 | Michael Hanselmann | much memory.
|
31 | a8083063 | Iustin Pop |
|
32 | a8083063 | Iustin Pop | """
|
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.
|
54 | c41eea6e | Iustin Pop |
|
55 | c41eea6e | Iustin Pop | This only verifies the version of the configuration.
|
56 | c41eea6e | Iustin Pop |
|
57 | c41eea6e | Iustin Pop | @raise errors.ConfigurationError: if the version differs from what
|
58 | c41eea6e | Iustin Pop | we expect
|
59 | c41eea6e | Iustin Pop |
|
60 | c41eea6e | Iustin Pop | """
|
61 | 5b263ed7 | Michael Hanselmann | if data.version != constants.CONFIG_VERSION:
|
62 | 243cdbcc | Michael Hanselmann | raise errors.ConfigurationError("Cluster configuration version" |
63 | 243cdbcc | Michael Hanselmann | " mismatch, got %s instead of %s" %
|
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.
|
70 | a8083063 | Iustin Pop |
|
71 | 098c0958 | Michael Hanselmann | """
|
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
|
75 | a8083063 | Iustin Pop | self._config_data = None |
76 | a8083063 | Iustin Pop | self._offline = offline
|
77 | a8083063 | Iustin Pop | if cfg_file is None: |
78 | a8083063 | Iustin Pop | self._cfg_file = constants.CLUSTER_CONF_FILE
|
79 | a8083063 | Iustin Pop | else:
|
80 | a8083063 | Iustin Pop | self._cfg_file = cfg_file
|
81 | 923b1523 | Iustin Pop | self._temporary_ids = set() |
82 | a81c53c9 | Iustin Pop | self._temporary_drbds = {}
|
83 | e7d81ba0 | Iustin Pop | self._temporary_macs = set() |
84 | 89e1fc26 | Iustin Pop | # Note: in order to prevent errors when resolving our name in
|
85 | 89e1fc26 | Iustin Pop | # _DistributeConfig, we compute it here once and reuse it; it's
|
86 | 89e1fc26 | Iustin Pop | # better to raise an error before starting to modify the config
|
87 | 89e1fc26 | Iustin Pop | # file than after it was modified
|
88 | 89e1fc26 | Iustin Pop | self._my_hostname = utils.HostInfo().name
|
89 | 3c7f6c44 | Iustin Pop | self._last_cluster_serial = -1 |
90 | 3d3a04bc | Iustin Pop | self._OpenConfig()
|
91 | a8083063 | Iustin Pop | |
92 | a8083063 | Iustin Pop | # this method needs to be static, so that we can call it on the class
|
93 | a8083063 | Iustin Pop | @staticmethod
|
94 | a8083063 | Iustin Pop | def IsCluster(): |
95 | a8083063 | Iustin Pop | """Check if the cluster is configured.
|
96 | a8083063 | Iustin Pop |
|
97 | a8083063 | Iustin Pop | """
|
98 | a8083063 | Iustin Pop | return os.path.exists(constants.CLUSTER_CONF_FILE)
|
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.
|
103 | a8083063 | Iustin Pop |
|
104 | a8083063 | Iustin Pop | This should check the current instances for duplicates.
|
105 | a8083063 | Iustin Pop |
|
106 | a8083063 | Iustin Pop | """
|
107 | a8083063 | Iustin Pop | prefix = self._config_data.cluster.mac_prefix
|
108 | a8083063 | Iustin Pop | all_macs = self._AllMACs()
|
109 | a8083063 | Iustin Pop | retries = 64
|
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)
|
115 | e7d81ba0 | Iustin Pop | if mac not in all_macs and mac not in self._temporary_macs: |
116 | a8083063 | Iustin Pop | break
|
117 | a8083063 | Iustin Pop | retries -= 1
|
118 | a8083063 | Iustin Pop | else:
|
119 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Can't generate unique MAC") |
120 | e7d81ba0 | Iustin Pop | self._temporary_macs.add(mac)
|
121 | a8083063 | Iustin Pop | return mac
|
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.
|
126 | 1862d460 | Alexander Schreiber |
|
127 | 1862d460 | Alexander Schreiber | This only checks instances managed by this cluster, it does not
|
128 | 1862d460 | Alexander Schreiber | check for potential collisions elsewhere.
|
129 | 1862d460 | Alexander Schreiber |
|
130 | 1862d460 | Alexander Schreiber | """
|
131 | 1862d460 | Alexander Schreiber | all_macs = self._AllMACs()
|
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.
|
137 | f9518d38 | Iustin Pop |
|
138 | f9518d38 | Iustin Pop | This checks the current disks for duplicates.
|
139 | f9518d38 | Iustin Pop |
|
140 | f9518d38 | Iustin Pop | """
|
141 | f9518d38 | Iustin Pop | all_secrets = self._AllDRBDSecrets()
|
142 | f9518d38 | Iustin Pop | retries = 64
|
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
|
147 | f9518d38 | Iustin Pop | retries -= 1
|
148 | f9518d38 | Iustin Pop | else:
|
149 | f9518d38 | Iustin Pop | raise errors.ConfigurationError("Can't generate unique DRBD secret") |
150 | f9518d38 | Iustin Pop | return secret
|
151 | f9518d38 | Iustin Pop | |
152 | 34e54ebc | Iustin Pop | def _AllLVs(self): |
153 | 923b1523 | Iustin Pop | """Compute the list of all LVs.
|
154 | 923b1523 | Iustin Pop |
|
155 | 923b1523 | Iustin Pop | """
|
156 | 923b1523 | Iustin Pop | lvnames = set()
|
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
|
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.
|
165 | 34e54ebc | Iustin Pop |
|
166 | 34e54ebc | Iustin Pop | @type include_temporary: boolean
|
167 | 34e54ebc | Iustin Pop | @param include_temporary: whether to include the _temporary_ids set
|
168 | 34e54ebc | Iustin Pop | @rtype: set
|
169 | 34e54ebc | Iustin Pop | @return: a set of IDs
|
170 | 34e54ebc | Iustin Pop |
|
171 | 34e54ebc | Iustin Pop | """
|
172 | 34e54ebc | Iustin Pop | existing = set()
|
173 | 34e54ebc | Iustin Pop | if include_temporary:
|
174 | 34e54ebc | Iustin Pop | existing.update(self._temporary_ids)
|
175 | 34e54ebc | Iustin Pop | existing.update(self._AllLVs())
|
176 | 34e54ebc | Iustin Pop | existing.update(self._config_data.instances.keys())
|
177 | 34e54ebc | Iustin Pop | existing.update(self._config_data.nodes.keys())
|
178 | 76d5d3a3 | Iustin Pop | existing.update([i.uuid for i in self._AllUUIDObjects() if i.uuid]) |
179 | 34e54ebc | Iustin Pop | return existing
|
180 | 34e54ebc | Iustin Pop | |
181 | 430b923c | Iustin Pop | def _GenerateUniqueID(self, exceptions=None): |
182 | 430b923c | Iustin Pop | """Generate an unique UUID.
|
183 | 923b1523 | Iustin Pop |
|
184 | 923b1523 | Iustin Pop | This checks the current node, instances and disk names for
|
185 | 923b1523 | Iustin Pop | duplicates.
|
186 | 923b1523 | Iustin Pop |
|
187 | 430b923c | Iustin Pop | @param exceptions: a list with some other names which should be
|
188 | 430b923c | Iustin Pop | checked for uniqueness (used for example when you want to get
|
189 | 430b923c | Iustin Pop | more than one id at one time without adding each one in turn
|
190 | 430b923c | Iustin Pop | to the config file)
|
191 | 923b1523 | Iustin Pop |
|
192 | c41eea6e | Iustin Pop | @rtype: string
|
193 | c41eea6e | Iustin Pop | @return: the unique id
|
194 | 923b1523 | Iustin Pop |
|
195 | 923b1523 | Iustin Pop | """
|
196 | 34e54ebc | Iustin Pop | existing = self._AllIDs(include_temporary=True) |
197 | 923b1523 | Iustin Pop | if exceptions is not None: |
198 | 923b1523 | Iustin Pop | existing.update(exceptions) |
199 | 923b1523 | Iustin Pop | retries = 64
|
200 | 923b1523 | Iustin Pop | while retries > 0: |
201 | 24818e8f | Michael Hanselmann | unique_id = utils.NewUUID() |
202 | 923b1523 | Iustin Pop | if unique_id not in existing and unique_id is not None: |
203 | 923b1523 | Iustin Pop | break
|
204 | 923b1523 | Iustin Pop | else:
|
205 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Not able generate an unique ID" |
206 | 3ecf6786 | Iustin Pop | " (last tried ID: %s" % unique_id)
|
207 | 923b1523 | Iustin Pop | self._temporary_ids.add(unique_id)
|
208 | 923b1523 | Iustin Pop | return unique_id
|
209 | 923b1523 | Iustin Pop | |
210 | 430b923c | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
211 | 430b923c | Iustin Pop | def GenerateUniqueID(self, exceptions=None): |
212 | 430b923c | Iustin Pop | """Generate an unique ID.
|
213 | 430b923c | Iustin Pop |
|
214 | 430b923c | Iustin Pop | This is just a wrapper over the unlocked version.
|
215 | 430b923c | Iustin Pop |
|
216 | 430b923c | Iustin Pop | """
|
217 | 430b923c | Iustin Pop | return self._GenerateUniqueID(exceptions=exceptions) |
218 | 430b923c | Iustin Pop | |
219 | 34d657ba | Iustin Pop | def _CleanupTemporaryIDs(self): |
220 | 34d657ba | Iustin Pop | """Cleanups the _temporary_ids structure.
|
221 | 34d657ba | Iustin Pop |
|
222 | 34d657ba | Iustin Pop | """
|
223 | 34d657ba | Iustin Pop | existing = self._AllIDs(include_temporary=False) |
224 | 34d657ba | Iustin Pop | self._temporary_ids = self._temporary_ids - existing |
225 | 34d657ba | Iustin Pop | |
226 | a8083063 | Iustin Pop | def _AllMACs(self): |
227 | a8083063 | Iustin Pop | """Return all MACs present in the config.
|
228 | a8083063 | Iustin Pop |
|
229 | c41eea6e | Iustin Pop | @rtype: list
|
230 | c41eea6e | Iustin Pop | @return: the list of all MACs
|
231 | c41eea6e | Iustin Pop |
|
232 | a8083063 | Iustin Pop | """
|
233 | a8083063 | Iustin Pop | result = [] |
234 | a8083063 | Iustin Pop | for instance in self._config_data.instances.values(): |
235 | a8083063 | Iustin Pop | for nic in instance.nics: |
236 | a8083063 | Iustin Pop | result.append(nic.mac) |
237 | a8083063 | Iustin Pop | |
238 | a8083063 | Iustin Pop | return result
|
239 | a8083063 | Iustin Pop | |
240 | f9518d38 | Iustin Pop | def _AllDRBDSecrets(self): |
241 | f9518d38 | Iustin Pop | """Return all DRBD secrets present in the config.
|
242 | f9518d38 | Iustin Pop |
|
243 | c41eea6e | Iustin Pop | @rtype: list
|
244 | c41eea6e | Iustin Pop | @return: the list of all DRBD secrets
|
245 | c41eea6e | Iustin Pop |
|
246 | f9518d38 | Iustin Pop | """
|
247 | f9518d38 | Iustin Pop | def helper(disk, result): |
248 | f9518d38 | Iustin Pop | """Recursively gather secrets from this disk."""
|
249 | f9518d38 | Iustin Pop | if disk.dev_type == constants.DT_DRBD8:
|
250 | f9518d38 | Iustin Pop | result.append(disk.logical_id[5])
|
251 | f9518d38 | Iustin Pop | if disk.children:
|
252 | f9518d38 | Iustin Pop | for child in disk.children: |
253 | f9518d38 | Iustin Pop | helper(child, result) |
254 | f9518d38 | Iustin Pop | |
255 | f9518d38 | Iustin Pop | result = [] |
256 | f9518d38 | Iustin Pop | for instance in self._config_data.instances.values(): |
257 | f9518d38 | Iustin Pop | for disk in instance.disks: |
258 | f9518d38 | Iustin Pop | helper(disk, result) |
259 | f9518d38 | Iustin Pop | |
260 | f9518d38 | Iustin Pop | return result
|
261 | f9518d38 | Iustin Pop | |
262 | 4b98ac29 | Iustin Pop | def _CheckDiskIDs(self, disk, l_ids, p_ids): |
263 | 4b98ac29 | Iustin Pop | """Compute duplicate disk IDs
|
264 | 4b98ac29 | Iustin Pop |
|
265 | 4b98ac29 | Iustin Pop | @type disk: L{objects.Disk}
|
266 | 4b98ac29 | Iustin Pop | @param disk: the disk at which to start searching
|
267 | 4b98ac29 | Iustin Pop | @type l_ids: list
|
268 | 4b98ac29 | Iustin Pop | @param l_ids: list of current logical ids
|
269 | 4b98ac29 | Iustin Pop | @type p_ids: list
|
270 | 4b98ac29 | Iustin Pop | @param p_ids: list of current physical ids
|
271 | 4b98ac29 | Iustin Pop | @rtype: list
|
272 | 4b98ac29 | Iustin Pop | @return: a list of error messages
|
273 | 4b98ac29 | Iustin Pop |
|
274 | 4b98ac29 | Iustin Pop | """
|
275 | 4b98ac29 | Iustin Pop | result = [] |
276 | 25ae22e4 | Iustin Pop | if disk.logical_id is not None: |
277 | 25ae22e4 | Iustin Pop | if disk.logical_id in l_ids: |
278 | 25ae22e4 | Iustin Pop | result.append("duplicate logical id %s" % str(disk.logical_id)) |
279 | 25ae22e4 | Iustin Pop | else:
|
280 | 25ae22e4 | Iustin Pop | l_ids.append(disk.logical_id) |
281 | 25ae22e4 | Iustin Pop | if disk.physical_id is not None: |
282 | 25ae22e4 | Iustin Pop | if disk.physical_id in p_ids: |
283 | 25ae22e4 | Iustin Pop | result.append("duplicate physical id %s" % str(disk.physical_id)) |
284 | 25ae22e4 | Iustin Pop | else:
|
285 | 25ae22e4 | Iustin Pop | p_ids.append(disk.physical_id) |
286 | 4b98ac29 | Iustin Pop | |
287 | 4b98ac29 | Iustin Pop | if disk.children:
|
288 | 4b98ac29 | Iustin Pop | for child in disk.children: |
289 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(child, l_ids, p_ids))
|
290 | 4b98ac29 | Iustin Pop | return result
|
291 | 4b98ac29 | Iustin Pop | |
292 | 4a89c54a | Iustin Pop | def _UnlockedVerifyConfig(self): |
293 | a8efbb40 | Iustin Pop | """Verify function.
|
294 | a8efbb40 | Iustin Pop |
|
295 | 4a89c54a | Iustin Pop | @rtype: list
|
296 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
297 | 4a89c54a | Iustin Pop | configuration errors
|
298 | 4a89c54a | Iustin Pop |
|
299 | a8083063 | Iustin Pop | """
|
300 | a8083063 | Iustin Pop | result = [] |
301 | a8083063 | Iustin Pop | seen_macs = [] |
302 | 48ce9fd9 | Iustin Pop | ports = {} |
303 | a8083063 | Iustin Pop | data = self._config_data
|
304 | 4b98ac29 | Iustin Pop | seen_lids = [] |
305 | 4b98ac29 | Iustin Pop | seen_pids = [] |
306 | 9a5fba23 | Guido Trotter | |
307 | 9a5fba23 | Guido Trotter | # global cluster checks
|
308 | 9a5fba23 | Guido Trotter | if not data.cluster.enabled_hypervisors: |
309 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors list doesn't have any entries")
|
310 | 9a5fba23 | Guido Trotter | invalid_hvs = set(data.cluster.enabled_hypervisors) - constants.HYPER_TYPES
|
311 | 9a5fba23 | Guido Trotter | if invalid_hvs:
|
312 | 9a5fba23 | Guido Trotter | result.append("enabled hypervisors contains invalid entries: %s" %
|
313 | 9a5fba23 | Guido Trotter | invalid_hvs) |
314 | 9a5fba23 | Guido Trotter | |
315 | 9a5fba23 | Guido Trotter | if data.cluster.master_node not in data.nodes: |
316 | 9a5fba23 | Guido Trotter | result.append("cluster has invalid primary node '%s'" %
|
317 | 9a5fba23 | Guido Trotter | data.cluster.master_node) |
318 | 9a5fba23 | Guido Trotter | |
319 | 9a5fba23 | Guido Trotter | # per-instance checks
|
320 | a8083063 | Iustin Pop | for instance_name in data.instances: |
321 | a8083063 | Iustin Pop | instance = data.instances[instance_name] |
322 | a8083063 | Iustin Pop | if instance.primary_node not in data.nodes: |
323 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid primary node '%s'" %
|
324 | a8083063 | Iustin Pop | (instance_name, instance.primary_node)) |
325 | a8083063 | Iustin Pop | for snode in instance.secondary_nodes: |
326 | a8083063 | Iustin Pop | if snode not in data.nodes: |
327 | 8522ceeb | Iustin Pop | result.append("instance '%s' has invalid secondary node '%s'" %
|
328 | a8083063 | Iustin Pop | (instance_name, snode)) |
329 | a8083063 | Iustin Pop | for idx, nic in enumerate(instance.nics): |
330 | a8083063 | Iustin Pop | if nic.mac in seen_macs: |
331 | 8522ceeb | Iustin Pop | result.append("instance '%s' has NIC %d mac %s duplicate" %
|
332 | a8083063 | Iustin Pop | (instance_name, idx, nic.mac)) |
333 | a8083063 | Iustin Pop | else:
|
334 | a8083063 | Iustin Pop | seen_macs.append(nic.mac) |
335 | 48ce9fd9 | Iustin Pop | |
336 | 48ce9fd9 | Iustin Pop | # gather the drbd ports for duplicate checks
|
337 | 48ce9fd9 | Iustin Pop | for dsk in instance.disks: |
338 | 48ce9fd9 | Iustin Pop | if dsk.dev_type in constants.LDS_DRBD: |
339 | 48ce9fd9 | Iustin Pop | tcp_port = dsk.logical_id[2]
|
340 | 48ce9fd9 | Iustin Pop | if tcp_port not in ports: |
341 | 48ce9fd9 | Iustin Pop | ports[tcp_port] = [] |
342 | 48ce9fd9 | Iustin Pop | ports[tcp_port].append((instance.name, "drbd disk %s" % dsk.iv_name))
|
343 | 48ce9fd9 | Iustin Pop | # gather network port reservation
|
344 | 48ce9fd9 | Iustin Pop | net_port = getattr(instance, "network_port", None) |
345 | 48ce9fd9 | Iustin Pop | if net_port is not None: |
346 | 48ce9fd9 | Iustin Pop | if net_port not in ports: |
347 | 48ce9fd9 | Iustin Pop | ports[net_port] = [] |
348 | 48ce9fd9 | Iustin Pop | ports[net_port].append((instance.name, "network port"))
|
349 | 48ce9fd9 | Iustin Pop | |
350 | 332d0e37 | Iustin Pop | # instance disk verify
|
351 | 332d0e37 | Iustin Pop | for idx, disk in enumerate(instance.disks): |
352 | 332d0e37 | Iustin Pop | result.extend(["instance '%s' disk %d error: %s" %
|
353 | 332d0e37 | Iustin Pop | (instance.name, idx, msg) for msg in disk.Verify()]) |
354 | 4b98ac29 | Iustin Pop | result.extend(self._CheckDiskIDs(disk, seen_lids, seen_pids))
|
355 | 332d0e37 | Iustin Pop | |
356 | 48ce9fd9 | Iustin Pop | # cluster-wide pool of free ports
|
357 | a8efbb40 | Iustin Pop | for free_port in data.cluster.tcpudp_port_pool: |
358 | 48ce9fd9 | Iustin Pop | if free_port not in ports: |
359 | 48ce9fd9 | Iustin Pop | ports[free_port] = [] |
360 | 48ce9fd9 | Iustin Pop | ports[free_port].append(("cluster", "port marked as free")) |
361 | 48ce9fd9 | Iustin Pop | |
362 | 48ce9fd9 | Iustin Pop | # compute tcp/udp duplicate ports
|
363 | 48ce9fd9 | Iustin Pop | keys = ports.keys() |
364 | 48ce9fd9 | Iustin Pop | keys.sort() |
365 | 48ce9fd9 | Iustin Pop | for pnum in keys: |
366 | 48ce9fd9 | Iustin Pop | pdata = ports[pnum] |
367 | 48ce9fd9 | Iustin Pop | if len(pdata) > 1: |
368 | 48ce9fd9 | Iustin Pop | txt = ", ".join(["%s/%s" % val for val in pdata]) |
369 | 48ce9fd9 | Iustin Pop | result.append("tcp/udp port %s has duplicates: %s" % (pnum, txt))
|
370 | 48ce9fd9 | Iustin Pop | |
371 | 48ce9fd9 | Iustin Pop | # highest used tcp port check
|
372 | 48ce9fd9 | Iustin Pop | if keys:
|
373 | a8efbb40 | Iustin Pop | if keys[-1] > data.cluster.highest_used_port: |
374 | 48ce9fd9 | Iustin Pop | result.append("Highest used port mismatch, saved %s, computed %s" %
|
375 | a8efbb40 | Iustin Pop | (data.cluster.highest_used_port, keys[-1]))
|
376 | a8efbb40 | Iustin Pop | |
377 | 3a26773f | Iustin Pop | if not data.nodes[data.cluster.master_node].master_candidate: |
378 | 3a26773f | Iustin Pop | result.append("Master node is not a master candidate")
|
379 | 3a26773f | Iustin Pop | |
380 | 4a89c54a | Iustin Pop | # master candidate checks
|
381 | ec0292f1 | Iustin Pop | mc_now, mc_max = self._UnlockedGetMasterCandidateStats()
|
382 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
383 | ec0292f1 | Iustin Pop | result.append("Not enough master candidates: actual %d, target %d" %
|
384 | ec0292f1 | Iustin Pop | (mc_now, mc_max)) |
385 | 48ce9fd9 | Iustin Pop | |
386 | 5bf07049 | Iustin Pop | # node checks
|
387 | 5bf07049 | Iustin Pop | for node in data.nodes.values(): |
388 | 5bf07049 | Iustin Pop | if [node.master_candidate, node.drained, node.offline].count(True) > 1: |
389 | 5bf07049 | Iustin Pop | result.append("Node %s state is invalid: master_candidate=%s,"
|
390 | 5bf07049 | Iustin Pop | " drain=%s, offline=%s" %
|
391 | 5bf07049 | Iustin Pop | (node.name, node.master_candidate, node.drain, |
392 | 5bf07049 | Iustin Pop | node.offline)) |
393 | 5bf07049 | Iustin Pop | |
394 | 4a89c54a | Iustin Pop | # drbd minors check
|
395 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
396 | 4a89c54a | Iustin Pop | for node, minor, instance_a, instance_b in duplicates: |
397 | 4a89c54a | Iustin Pop | result.append("DRBD minor %d on node %s is assigned twice to instances"
|
398 | 4a89c54a | Iustin Pop | " %s and %s" % (minor, node, instance_a, instance_b))
|
399 | 4a89c54a | Iustin Pop | |
400 | a8083063 | Iustin Pop | return result
|
401 | a8083063 | Iustin Pop | |
402 | 4a89c54a | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
403 | 4a89c54a | Iustin Pop | def VerifyConfig(self): |
404 | 4a89c54a | Iustin Pop | """Verify function.
|
405 | 4a89c54a | Iustin Pop |
|
406 | 4a89c54a | Iustin Pop | This is just a wrapper over L{_UnlockedVerifyConfig}.
|
407 | 4a89c54a | Iustin Pop |
|
408 | 4a89c54a | Iustin Pop | @rtype: list
|
409 | 4a89c54a | Iustin Pop | @return: a list of error messages; a non-empty list signifies
|
410 | 4a89c54a | Iustin Pop | configuration errors
|
411 | 4a89c54a | Iustin Pop |
|
412 | 4a89c54a | Iustin Pop | """
|
413 | 4a89c54a | Iustin Pop | return self._UnlockedVerifyConfig() |
414 | 4a89c54a | Iustin Pop | |
415 | f78ede4e | Guido Trotter | def _UnlockedSetDiskID(self, disk, node_name): |
416 | a8083063 | Iustin Pop | """Convert the unique ID to the ID needed on the target nodes.
|
417 | a8083063 | Iustin Pop |
|
418 | a8083063 | Iustin Pop | This is used only for drbd, which needs ip/port configuration.
|
419 | a8083063 | Iustin Pop |
|
420 | a8083063 | Iustin Pop | The routine descends down and updates its children also, because
|
421 | a8083063 | Iustin Pop | this helps when the only the top device is passed to the remote
|
422 | a8083063 | Iustin Pop | node.
|
423 | a8083063 | Iustin Pop |
|
424 | f78ede4e | Guido Trotter | This function is for internal use, when the config lock is already held.
|
425 | f78ede4e | Guido Trotter |
|
426 | a8083063 | Iustin Pop | """
|
427 | a8083063 | Iustin Pop | if disk.children:
|
428 | a8083063 | Iustin Pop | for child in disk.children: |
429 | f78ede4e | Guido Trotter | self._UnlockedSetDiskID(child, node_name)
|
430 | a8083063 | Iustin Pop | |
431 | a8083063 | Iustin Pop | if disk.logical_id is None and disk.physical_id is not None: |
432 | a8083063 | Iustin Pop | return
|
433 | ffa1c0dc | Iustin Pop | if disk.dev_type == constants.LD_DRBD8:
|
434 | f9518d38 | Iustin Pop | pnode, snode, port, pminor, sminor, secret = disk.logical_id |
435 | a8083063 | Iustin Pop | if node_name not in (pnode, snode): |
436 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("DRBD device not knowing node %s" % |
437 | 3ecf6786 | Iustin Pop | node_name) |
438 | f78ede4e | Guido Trotter | pnode_info = self._UnlockedGetNodeInfo(pnode)
|
439 | f78ede4e | Guido Trotter | snode_info = self._UnlockedGetNodeInfo(snode)
|
440 | a8083063 | Iustin Pop | if pnode_info is None or snode_info is None: |
441 | a8083063 | Iustin Pop | raise errors.ConfigurationError("Can't find primary or secondary node" |
442 | a8083063 | Iustin Pop | " for %s" % str(disk)) |
443 | ffa1c0dc | Iustin Pop | p_data = (pnode_info.secondary_ip, port) |
444 | ffa1c0dc | Iustin Pop | s_data = (snode_info.secondary_ip, port) |
445 | a8083063 | Iustin Pop | if pnode == node_name:
|
446 | f9518d38 | Iustin Pop | disk.physical_id = p_data + s_data + (pminor, secret) |
447 | a8083063 | Iustin Pop | else: # it must be secondary, we tested above |
448 | f9518d38 | Iustin Pop | disk.physical_id = s_data + p_data + (sminor, secret) |
449 | a8083063 | Iustin Pop | else:
|
450 | a8083063 | Iustin Pop | disk.physical_id = disk.logical_id |
451 | a8083063 | Iustin Pop | return
|
452 | a8083063 | Iustin Pop | |
453 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
454 | f78ede4e | Guido Trotter | def SetDiskID(self, disk, node_name): |
455 | f78ede4e | Guido Trotter | """Convert the unique ID to the ID needed on the target nodes.
|
456 | f78ede4e | Guido Trotter |
|
457 | f78ede4e | Guido Trotter | This is used only for drbd, which needs ip/port configuration.
|
458 | f78ede4e | Guido Trotter |
|
459 | f78ede4e | Guido Trotter | The routine descends down and updates its children also, because
|
460 | f78ede4e | Guido Trotter | this helps when the only the top device is passed to the remote
|
461 | f78ede4e | Guido Trotter | node.
|
462 | f78ede4e | Guido Trotter |
|
463 | f78ede4e | Guido Trotter | """
|
464 | f78ede4e | Guido Trotter | return self._UnlockedSetDiskID(disk, node_name) |
465 | f78ede4e | Guido Trotter | |
466 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
467 | b2fddf63 | Iustin Pop | def AddTcpUdpPort(self, port): |
468 | b2fddf63 | Iustin Pop | """Adds a new port to the available port pool.
|
469 | b2fddf63 | Iustin Pop |
|
470 | b2fddf63 | Iustin Pop | """
|
471 | 264bb3c5 | Michael Hanselmann | if not isinstance(port, int): |
472 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed for port") |
473 | 264bb3c5 | Michael Hanselmann | |
474 | b2fddf63 | Iustin Pop | self._config_data.cluster.tcpudp_port_pool.add(port)
|
475 | 264bb3c5 | Michael Hanselmann | self._WriteConfig()
|
476 | 264bb3c5 | Michael Hanselmann | |
477 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
478 | b2fddf63 | Iustin Pop | def GetPortList(self): |
479 | 264bb3c5 | Michael Hanselmann | """Returns a copy of the current port list.
|
480 | 264bb3c5 | Michael Hanselmann |
|
481 | 264bb3c5 | Michael Hanselmann | """
|
482 | b2fddf63 | Iustin Pop | return self._config_data.cluster.tcpudp_port_pool.copy() |
483 | 264bb3c5 | Michael Hanselmann | |
484 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
485 | a8083063 | Iustin Pop | def AllocatePort(self): |
486 | a8083063 | Iustin Pop | """Allocate a port.
|
487 | a8083063 | Iustin Pop |
|
488 | b2fddf63 | Iustin Pop | The port will be taken from the available port pool or from the
|
489 | b2fddf63 | Iustin Pop | default port range (and in this case we increase
|
490 | b2fddf63 | Iustin Pop | highest_used_port).
|
491 | a8083063 | Iustin Pop |
|
492 | a8083063 | Iustin Pop | """
|
493 | 264bb3c5 | Michael Hanselmann | # If there are TCP/IP ports configured, we use them first.
|
494 | b2fddf63 | Iustin Pop | if self._config_data.cluster.tcpudp_port_pool: |
495 | b2fddf63 | Iustin Pop | port = self._config_data.cluster.tcpudp_port_pool.pop()
|
496 | 264bb3c5 | Michael Hanselmann | else:
|
497 | 264bb3c5 | Michael Hanselmann | port = self._config_data.cluster.highest_used_port + 1 |
498 | 264bb3c5 | Michael Hanselmann | if port >= constants.LAST_DRBD_PORT:
|
499 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("The highest used port is greater" |
500 | 3ecf6786 | Iustin Pop | " than %s. Aborting." %
|
501 | 3ecf6786 | Iustin Pop | constants.LAST_DRBD_PORT) |
502 | 264bb3c5 | Michael Hanselmann | self._config_data.cluster.highest_used_port = port
|
503 | a8083063 | Iustin Pop | |
504 | a8083063 | Iustin Pop | self._WriteConfig()
|
505 | a8083063 | Iustin Pop | return port
|
506 | a8083063 | Iustin Pop | |
507 | 6d2e83d5 | Iustin Pop | def _UnlockedComputeDRBDMap(self): |
508 | a81c53c9 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
509 | a81c53c9 | Iustin Pop |
|
510 | 4a89c54a | Iustin Pop | @rtype: (dict, list)
|
511 | c41eea6e | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
512 | c41eea6e | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
513 | 4a89c54a | Iustin Pop | an empty list), and a list of duplicates; if the duplicates
|
514 | 4a89c54a | Iustin Pop | list is not empty, the configuration is corrupted and its caller
|
515 | 4a89c54a | Iustin Pop | should raise an exception
|
516 | a81c53c9 | Iustin Pop |
|
517 | a81c53c9 | Iustin Pop | """
|
518 | a81c53c9 | Iustin Pop | def _AppendUsedPorts(instance_name, disk, used): |
519 | 4a89c54a | Iustin Pop | duplicates = [] |
520 | f9518d38 | Iustin Pop | if disk.dev_type == constants.LD_DRBD8 and len(disk.logical_id) >= 5: |
521 | 7c4d6c7b | Michael Hanselmann | node_a, node_b, _, minor_a, minor_b = disk.logical_id[:5]
|
522 | 7c4d6c7b | Michael Hanselmann | for node, port in ((node_a, minor_a), (node_b, minor_b)): |
523 | 4a89c54a | Iustin Pop | assert node in used, ("Node '%s' of instance '%s' not found" |
524 | 4a89c54a | Iustin Pop | " in node list" % (node, instance_name))
|
525 | a81c53c9 | Iustin Pop | if port in used[node]: |
526 | 4a89c54a | Iustin Pop | duplicates.append((node, port, instance_name, used[node][port])) |
527 | 4a89c54a | Iustin Pop | else:
|
528 | 4a89c54a | Iustin Pop | used[node][port] = instance_name |
529 | a81c53c9 | Iustin Pop | if disk.children:
|
530 | a81c53c9 | Iustin Pop | for child in disk.children: |
531 | 4a89c54a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance_name, child, used)) |
532 | 4a89c54a | Iustin Pop | return duplicates
|
533 | a81c53c9 | Iustin Pop | |
534 | 4a89c54a | Iustin Pop | duplicates = [] |
535 | a81c53c9 | Iustin Pop | my_dict = dict((node, {}) for node in self._config_data.nodes) |
536 | 79b26a7a | Iustin Pop | for instance in self._config_data.instances.itervalues(): |
537 | 79b26a7a | Iustin Pop | for disk in instance.disks: |
538 | 79b26a7a | Iustin Pop | duplicates.extend(_AppendUsedPorts(instance.name, disk, my_dict)) |
539 | a81c53c9 | Iustin Pop | for (node, minor), instance in self._temporary_drbds.iteritems(): |
540 | 79b26a7a | Iustin Pop | if minor in my_dict[node] and my_dict[node][minor] != instance: |
541 | 4a89c54a | Iustin Pop | duplicates.append((node, minor, instance, my_dict[node][minor])) |
542 | 4a89c54a | Iustin Pop | else:
|
543 | 4a89c54a | Iustin Pop | my_dict[node][minor] = instance |
544 | 4a89c54a | Iustin Pop | return my_dict, duplicates
|
545 | a81c53c9 | Iustin Pop | |
546 | a81c53c9 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
547 | 6d2e83d5 | Iustin Pop | def ComputeDRBDMap(self): |
548 | 6d2e83d5 | Iustin Pop | """Compute the used DRBD minor/nodes.
|
549 | 6d2e83d5 | Iustin Pop |
|
550 | 6d2e83d5 | Iustin Pop | This is just a wrapper over L{_UnlockedComputeDRBDMap}.
|
551 | 6d2e83d5 | Iustin Pop |
|
552 | 6d2e83d5 | Iustin Pop | @return: dictionary of node_name: dict of minor: instance_name;
|
553 | 6d2e83d5 | Iustin Pop | the returned dict will have all the nodes in it (even if with
|
554 | 6d2e83d5 | Iustin Pop | an empty list).
|
555 | 6d2e83d5 | Iustin Pop |
|
556 | 6d2e83d5 | Iustin Pop | """
|
557 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
558 | 4a89c54a | Iustin Pop | if duplicates:
|
559 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
560 | 4a89c54a | Iustin Pop | str(duplicates))
|
561 | 4a89c54a | Iustin Pop | return d_map
|
562 | 6d2e83d5 | Iustin Pop | |
563 | 6d2e83d5 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
564 | a81c53c9 | Iustin Pop | def AllocateDRBDMinor(self, nodes, instance): |
565 | a81c53c9 | Iustin Pop | """Allocate a drbd minor.
|
566 | a81c53c9 | Iustin Pop |
|
567 | a81c53c9 | Iustin Pop | The free minor will be automatically computed from the existing
|
568 | a81c53c9 | Iustin Pop | devices. A node can be given multiple times in order to allocate
|
569 | a81c53c9 | Iustin Pop | multiple minors. The result is the list of minors, in the same
|
570 | a81c53c9 | Iustin Pop | order as the passed nodes.
|
571 | a81c53c9 | Iustin Pop |
|
572 | 32388e6d | Iustin Pop | @type instance: string
|
573 | 32388e6d | Iustin Pop | @param instance: the instance for which we allocate minors
|
574 | 32388e6d | Iustin Pop |
|
575 | a81c53c9 | Iustin Pop | """
|
576 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
577 | 4a89c54a | Iustin Pop | "Invalid argument '%s' passed to AllocateDRBDMinor" % instance
|
578 | 32388e6d | Iustin Pop | |
579 | 4a89c54a | Iustin Pop | d_map, duplicates = self._UnlockedComputeDRBDMap()
|
580 | 4a89c54a | Iustin Pop | if duplicates:
|
581 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Duplicate DRBD ports detected: %s" % |
582 | 4a89c54a | Iustin Pop | str(duplicates))
|
583 | a81c53c9 | Iustin Pop | result = [] |
584 | a81c53c9 | Iustin Pop | for nname in nodes: |
585 | a81c53c9 | Iustin Pop | ndata = d_map[nname] |
586 | a81c53c9 | Iustin Pop | if not ndata: |
587 | a81c53c9 | Iustin Pop | # no minors used, we can start at 0
|
588 | a81c53c9 | Iustin Pop | result.append(0)
|
589 | a81c53c9 | Iustin Pop | ndata[0] = instance
|
590 | d48663e4 | Iustin Pop | self._temporary_drbds[(nname, 0)] = instance |
591 | a81c53c9 | Iustin Pop | continue
|
592 | a81c53c9 | Iustin Pop | keys = ndata.keys() |
593 | a81c53c9 | Iustin Pop | keys.sort() |
594 | a81c53c9 | Iustin Pop | ffree = utils.FirstFree(keys) |
595 | a81c53c9 | Iustin Pop | if ffree is None: |
596 | a81c53c9 | Iustin Pop | # return the next minor
|
597 | a81c53c9 | Iustin Pop | # TODO: implement high-limit check
|
598 | a81c53c9 | Iustin Pop | minor = keys[-1] + 1 |
599 | a81c53c9 | Iustin Pop | else:
|
600 | a81c53c9 | Iustin Pop | minor = ffree |
601 | 4a89c54a | Iustin Pop | # double-check minor against current instances
|
602 | 4a89c54a | Iustin Pop | assert minor not in d_map[nname], \ |
603 | 4a89c54a | Iustin Pop | ("Attempt to reuse allocated DRBD minor %d on node %s,"
|
604 | 4a89c54a | Iustin Pop | " already allocated to instance %s" %
|
605 | 4a89c54a | Iustin Pop | (minor, nname, d_map[nname][minor])) |
606 | a81c53c9 | Iustin Pop | ndata[minor] = instance |
607 | 4a89c54a | Iustin Pop | # double-check minor against reservation
|
608 | 4a89c54a | Iustin Pop | r_key = (nname, minor) |
609 | 4a89c54a | Iustin Pop | assert r_key not in self._temporary_drbds, \ |
610 | 4a89c54a | Iustin Pop | ("Attempt to reuse reserved DRBD minor %d on node %s,"
|
611 | 4a89c54a | Iustin Pop | " reserved for instance %s" %
|
612 | 4a89c54a | Iustin Pop | (minor, nname, self._temporary_drbds[r_key]))
|
613 | 4a89c54a | Iustin Pop | self._temporary_drbds[r_key] = instance
|
614 | 4a89c54a | Iustin Pop | result.append(minor) |
615 | a81c53c9 | Iustin Pop | logging.debug("Request to allocate drbd minors, input: %s, returning %s",
|
616 | a81c53c9 | Iustin Pop | nodes, result) |
617 | a81c53c9 | Iustin Pop | return result
|
618 | a81c53c9 | Iustin Pop | |
619 | 61cf6b5e | Iustin Pop | def _UnlockedReleaseDRBDMinors(self, instance): |
620 | a81c53c9 | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
621 | a81c53c9 | Iustin Pop |
|
622 | a81c53c9 | Iustin Pop | @type instance: string
|
623 | a81c53c9 | Iustin Pop | @param instance: the instance for which temporary minors should be
|
624 | a81c53c9 | Iustin Pop | released
|
625 | a81c53c9 | Iustin Pop |
|
626 | a81c53c9 | Iustin Pop | """
|
627 | 32388e6d | Iustin Pop | assert isinstance(instance, basestring), \ |
628 | 32388e6d | Iustin Pop | "Invalid argument passed to ReleaseDRBDMinors"
|
629 | a81c53c9 | Iustin Pop | for key, name in self._temporary_drbds.items(): |
630 | a81c53c9 | Iustin Pop | if name == instance:
|
631 | a81c53c9 | Iustin Pop | del self._temporary_drbds[key] |
632 | a81c53c9 | Iustin Pop | |
633 | 61cf6b5e | Iustin Pop | @locking.ssynchronized(_config_lock)
|
634 | 61cf6b5e | Iustin Pop | def ReleaseDRBDMinors(self, instance): |
635 | 61cf6b5e | Iustin Pop | """Release temporary drbd minors allocated for a given instance.
|
636 | 61cf6b5e | Iustin Pop |
|
637 | 61cf6b5e | Iustin Pop | This should be called on the error paths, on the success paths
|
638 | 61cf6b5e | Iustin Pop | it's automatically called by the ConfigWriter add and update
|
639 | 61cf6b5e | Iustin Pop | functions.
|
640 | 61cf6b5e | Iustin Pop |
|
641 | 61cf6b5e | Iustin Pop | This function is just a wrapper over L{_UnlockedReleaseDRBDMinors}.
|
642 | 61cf6b5e | Iustin Pop |
|
643 | 61cf6b5e | Iustin Pop | @type instance: string
|
644 | 61cf6b5e | Iustin Pop | @param instance: the instance for which temporary minors should be
|
645 | 61cf6b5e | Iustin Pop | released
|
646 | 61cf6b5e | Iustin Pop |
|
647 | 61cf6b5e | Iustin Pop | """
|
648 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance)
|
649 | 61cf6b5e | Iustin Pop | |
650 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
651 | 4a8b186a | Michael Hanselmann | def GetConfigVersion(self): |
652 | 4a8b186a | Michael Hanselmann | """Get the configuration version.
|
653 | 4a8b186a | Michael Hanselmann |
|
654 | 4a8b186a | Michael Hanselmann | @return: Config version
|
655 | 4a8b186a | Michael Hanselmann |
|
656 | 4a8b186a | Michael Hanselmann | """
|
657 | 4a8b186a | Michael Hanselmann | return self._config_data.version |
658 | 4a8b186a | Michael Hanselmann | |
659 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
660 | 4a8b186a | Michael Hanselmann | def GetClusterName(self): |
661 | 4a8b186a | Michael Hanselmann | """Get cluster name.
|
662 | 4a8b186a | Michael Hanselmann |
|
663 | 4a8b186a | Michael Hanselmann | @return: Cluster name
|
664 | 4a8b186a | Michael Hanselmann |
|
665 | 4a8b186a | Michael Hanselmann | """
|
666 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.cluster_name |
667 | 4a8b186a | Michael Hanselmann | |
668 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
669 | 4a8b186a | Michael Hanselmann | def GetMasterNode(self): |
670 | 4a8b186a | Michael Hanselmann | """Get the hostname of the master node for this cluster.
|
671 | 4a8b186a | Michael Hanselmann |
|
672 | 4a8b186a | Michael Hanselmann | @return: Master hostname
|
673 | 4a8b186a | Michael Hanselmann |
|
674 | 4a8b186a | Michael Hanselmann | """
|
675 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_node |
676 | 4a8b186a | Michael Hanselmann | |
677 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
678 | 4a8b186a | Michael Hanselmann | def GetMasterIP(self): |
679 | 4a8b186a | Michael Hanselmann | """Get the IP of the master node for this cluster.
|
680 | 4a8b186a | Michael Hanselmann |
|
681 | 4a8b186a | Michael Hanselmann | @return: Master IP
|
682 | 4a8b186a | Michael Hanselmann |
|
683 | 4a8b186a | Michael Hanselmann | """
|
684 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_ip |
685 | 4a8b186a | Michael Hanselmann | |
686 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
687 | 4a8b186a | Michael Hanselmann | def GetMasterNetdev(self): |
688 | 4a8b186a | Michael Hanselmann | """Get the master network device for this cluster.
|
689 | 4a8b186a | Michael Hanselmann |
|
690 | 4a8b186a | Michael Hanselmann | """
|
691 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.master_netdev |
692 | 4a8b186a | Michael Hanselmann | |
693 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
694 | 4a8b186a | Michael Hanselmann | def GetFileStorageDir(self): |
695 | 4a8b186a | Michael Hanselmann | """Get the file storage dir for this cluster.
|
696 | 4a8b186a | Michael Hanselmann |
|
697 | 4a8b186a | Michael Hanselmann | """
|
698 | 4a8b186a | Michael Hanselmann | return self._config_data.cluster.file_storage_dir |
699 | 4a8b186a | Michael Hanselmann | |
700 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
701 | 4a8b186a | Michael Hanselmann | def GetHypervisorType(self): |
702 | 4a8b186a | Michael Hanselmann | """Get the hypervisor type for this cluster.
|
703 | 4a8b186a | Michael Hanselmann |
|
704 | 4a8b186a | Michael Hanselmann | """
|
705 | 066f465d | Guido Trotter | return self._config_data.cluster.enabled_hypervisors[0] |
706 | 4a8b186a | Michael Hanselmann | |
707 | 4a8b186a | Michael Hanselmann | @locking.ssynchronized(_config_lock, shared=1) |
708 | a8083063 | Iustin Pop | def GetHostKey(self): |
709 | a8083063 | Iustin Pop | """Return the rsa hostkey from the config.
|
710 | a8083063 | Iustin Pop |
|
711 | c41eea6e | Iustin Pop | @rtype: string
|
712 | c41eea6e | Iustin Pop | @return: the rsa hostkey
|
713 | a8083063 | Iustin Pop |
|
714 | a8083063 | Iustin Pop | """
|
715 | a8083063 | Iustin Pop | return self._config_data.cluster.rsahostkeypub |
716 | a8083063 | Iustin Pop | |
717 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
718 | a8083063 | Iustin Pop | def AddInstance(self, instance): |
719 | a8083063 | Iustin Pop | """Add an instance to the config.
|
720 | a8083063 | Iustin Pop |
|
721 | a8083063 | Iustin Pop | This should be used after creating a new instance.
|
722 | a8083063 | Iustin Pop |
|
723 | c41eea6e | Iustin Pop | @type instance: L{objects.Instance}
|
724 | c41eea6e | Iustin Pop | @param instance: the instance object
|
725 | c41eea6e | Iustin Pop |
|
726 | a8083063 | Iustin Pop | """
|
727 | a8083063 | Iustin Pop | if not isinstance(instance, objects.Instance): |
728 | a8083063 | Iustin Pop | raise errors.ProgrammerError("Invalid type passed to AddInstance") |
729 | a8083063 | Iustin Pop | |
730 | e00fb268 | Iustin Pop | if instance.disk_template != constants.DT_DISKLESS:
|
731 | e00fb268 | Iustin Pop | all_lvs = instance.MapLVsByNode() |
732 | 74a48621 | Iustin Pop | logging.info("Instance '%s' DISK_LAYOUT: %s", instance.name, all_lvs)
|
733 | 923b1523 | Iustin Pop | |
734 | e4640214 | Guido Trotter | all_macs = self._AllMACs()
|
735 | e4640214 | Guido Trotter | for nic in instance.nics: |
736 | e4640214 | Guido Trotter | if nic.mac in all_macs: |
737 | e4640214 | Guido Trotter | raise errors.ConfigurationError("Cannot add instance %s:" |
738 | 430b923c | Iustin Pop | " MAC address '%s' already in use." %
|
739 | 430b923c | Iustin Pop | (instance.name, nic.mac)) |
740 | 430b923c | Iustin Pop | |
741 | 430b923c | Iustin Pop | self._EnsureUUID(instance)
|
742 | e4640214 | Guido Trotter | |
743 | b989e85d | Iustin Pop | instance.serial_no = 1
|
744 | d693c864 | Iustin Pop | instance.ctime = instance.mtime = time.time() |
745 | a8083063 | Iustin Pop | self._config_data.instances[instance.name] = instance
|
746 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
747 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(instance.name)
|
748 | e7d81ba0 | Iustin Pop | for nic in instance.nics: |
749 | e7d81ba0 | Iustin Pop | self._temporary_macs.discard(nic.mac)
|
750 | a8083063 | Iustin Pop | self._WriteConfig()
|
751 | a8083063 | Iustin Pop | |
752 | 430b923c | Iustin Pop | def _EnsureUUID(self, item): |
753 | 430b923c | Iustin Pop | """Ensures a given object has a valid UUID.
|
754 | 430b923c | Iustin Pop |
|
755 | 430b923c | Iustin Pop | @param item: the instance or node to be checked
|
756 | 430b923c | Iustin Pop |
|
757 | 430b923c | Iustin Pop | """
|
758 | 430b923c | Iustin Pop | if not item.uuid: |
759 | 430b923c | Iustin Pop | item.uuid = self._GenerateUniqueID()
|
760 | 430b923c | Iustin Pop | elif item.uuid in self._AllIDs(temporary=True): |
761 | 430b923c | Iustin Pop | raise errors.ConfigurationError("Cannot add '%s': UUID already in use" % |
762 | 430b923c | Iustin Pop | (item.name, item.uuid)) |
763 | 430b923c | Iustin Pop | |
764 | 6a408fb2 | Iustin Pop | def _SetInstanceStatus(self, instance_name, status): |
765 | 6a408fb2 | Iustin Pop | """Set the instance's status to a given value.
|
766 | a8083063 | Iustin Pop |
|
767 | a8083063 | Iustin Pop | """
|
768 | 0d68c45d | Iustin Pop | assert isinstance(status, bool), \ |
769 | 0d68c45d | Iustin Pop | "Invalid status '%s' passed to SetInstanceStatus" % (status,)
|
770 | a8083063 | Iustin Pop | |
771 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
772 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % |
773 | 3ecf6786 | Iustin Pop | instance_name) |
774 | a8083063 | Iustin Pop | instance = self._config_data.instances[instance_name]
|
775 | 0d68c45d | Iustin Pop | if instance.admin_up != status:
|
776 | 0d68c45d | Iustin Pop | instance.admin_up = status |
777 | b989e85d | Iustin Pop | instance.serial_no += 1
|
778 | d693c864 | Iustin Pop | instance.mtime = time.time() |
779 | 455a3445 | Iustin Pop | self._WriteConfig()
|
780 | a8083063 | Iustin Pop | |
781 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
782 | 6a408fb2 | Iustin Pop | def MarkInstanceUp(self, instance_name): |
783 | 6a408fb2 | Iustin Pop | """Mark the instance status to up in the config.
|
784 | 6a408fb2 | Iustin Pop |
|
785 | 6a408fb2 | Iustin Pop | """
|
786 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, True) |
787 | 6a408fb2 | Iustin Pop | |
788 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
789 | a8083063 | Iustin Pop | def RemoveInstance(self, instance_name): |
790 | a8083063 | Iustin Pop | """Remove the instance from the configuration.
|
791 | a8083063 | Iustin Pop |
|
792 | a8083063 | Iustin Pop | """
|
793 | a8083063 | Iustin Pop | if instance_name not in self._config_data.instances: |
794 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % instance_name) |
795 | a8083063 | Iustin Pop | del self._config_data.instances[instance_name] |
796 | 81a49123 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
797 | a8083063 | Iustin Pop | self._WriteConfig()
|
798 | a8083063 | Iustin Pop | |
799 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
800 | fc95f88f | Iustin Pop | def RenameInstance(self, old_name, new_name): |
801 | fc95f88f | Iustin Pop | """Rename an instance.
|
802 | fc95f88f | Iustin Pop |
|
803 | fc95f88f | Iustin Pop | This needs to be done in ConfigWriter and not by RemoveInstance
|
804 | fc95f88f | Iustin Pop | combined with AddInstance as only we can guarantee an atomic
|
805 | fc95f88f | Iustin Pop | rename.
|
806 | fc95f88f | Iustin Pop |
|
807 | fc95f88f | Iustin Pop | """
|
808 | fc95f88f | Iustin Pop | if old_name not in self._config_data.instances: |
809 | fc95f88f | Iustin Pop | raise errors.ConfigurationError("Unknown instance '%s'" % old_name) |
810 | fc95f88f | Iustin Pop | inst = self._config_data.instances[old_name]
|
811 | fc95f88f | Iustin Pop | del self._config_data.instances[old_name] |
812 | fc95f88f | Iustin Pop | inst.name = new_name |
813 | b23c4333 | Manuel Franceschini | |
814 | b23c4333 | Manuel Franceschini | for disk in inst.disks: |
815 | b23c4333 | Manuel Franceschini | if disk.dev_type == constants.LD_FILE:
|
816 | b23c4333 | Manuel Franceschini | # rename the file paths in logical and physical id
|
817 | b23c4333 | Manuel Franceschini | file_storage_dir = os.path.dirname(os.path.dirname(disk.logical_id[1]))
|
818 | b23c4333 | Manuel Franceschini | disk.physical_id = disk.logical_id = (disk.logical_id[0],
|
819 | b23c4333 | Manuel Franceschini | os.path.join(file_storage_dir, |
820 | b23c4333 | Manuel Franceschini | inst.name, |
821 | b23c4333 | Manuel Franceschini | disk.iv_name)) |
822 | b23c4333 | Manuel Franceschini | |
823 | fc95f88f | Iustin Pop | self._config_data.instances[inst.name] = inst
|
824 | fc95f88f | Iustin Pop | self._WriteConfig()
|
825 | fc95f88f | Iustin Pop | |
826 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
827 | a8083063 | Iustin Pop | def MarkInstanceDown(self, instance_name): |
828 | a8083063 | Iustin Pop | """Mark the status of an instance to down in the configuration.
|
829 | a8083063 | Iustin Pop |
|
830 | a8083063 | Iustin Pop | """
|
831 | 0d68c45d | Iustin Pop | self._SetInstanceStatus(instance_name, False) |
832 | a8083063 | Iustin Pop | |
833 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceList(self): |
834 | 94bbfece | Iustin Pop | """Get the list of instances.
|
835 | 94bbfece | Iustin Pop |
|
836 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
837 | 94bbfece | Iustin Pop |
|
838 | 94bbfece | Iustin Pop | """
|
839 | 94bbfece | Iustin Pop | return self._config_data.instances.keys() |
840 | 94bbfece | Iustin Pop | |
841 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
842 | a8083063 | Iustin Pop | def GetInstanceList(self): |
843 | a8083063 | Iustin Pop | """Get the list of instances.
|
844 | a8083063 | Iustin Pop |
|
845 | c41eea6e | Iustin Pop | @return: array of instances, ex. ['instance2.example.com',
|
846 | c41eea6e | Iustin Pop | 'instance1.example.com']
|
847 | a8083063 | Iustin Pop |
|
848 | a8083063 | Iustin Pop | """
|
849 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceList() |
850 | a8083063 | Iustin Pop | |
851 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
852 | a8083063 | Iustin Pop | def ExpandInstanceName(self, short_name): |
853 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
854 | a8083063 | Iustin Pop |
|
855 | a8083063 | Iustin Pop | """
|
856 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
857 | a8083063 | Iustin Pop | self._config_data.instances.keys())
|
858 | a8083063 | Iustin Pop | |
859 | 94bbfece | Iustin Pop | def _UnlockedGetInstanceInfo(self, instance_name): |
860 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
861 | 94bbfece | Iustin Pop |
|
862 | 94bbfece | Iustin Pop | This function is for internal use, when the config lock is already held.
|
863 | 94bbfece | Iustin Pop |
|
864 | 94bbfece | Iustin Pop | """
|
865 | 94bbfece | Iustin Pop | if instance_name not in self._config_data.instances: |
866 | 94bbfece | Iustin Pop | return None |
867 | 94bbfece | Iustin Pop | |
868 | 94bbfece | Iustin Pop | return self._config_data.instances[instance_name] |
869 | 94bbfece | Iustin Pop | |
870 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
871 | a8083063 | Iustin Pop | def GetInstanceInfo(self, instance_name): |
872 | 5bbd3f7f | Michael Hanselmann | """Returns information about an instance.
|
873 | a8083063 | Iustin Pop |
|
874 | 5bbd3f7f | Michael Hanselmann | It takes the information from the configuration file. Other information of
|
875 | a8083063 | Iustin Pop | an instance are taken from the live systems.
|
876 | a8083063 | Iustin Pop |
|
877 | c41eea6e | Iustin Pop | @param instance_name: name of the instance, e.g.
|
878 | c41eea6e | Iustin Pop | I{instance1.example.com}
|
879 | a8083063 | Iustin Pop |
|
880 | c41eea6e | Iustin Pop | @rtype: L{objects.Instance}
|
881 | c41eea6e | Iustin Pop | @return: the instance object
|
882 | a8083063 | Iustin Pop |
|
883 | a8083063 | Iustin Pop | """
|
884 | 94bbfece | Iustin Pop | return self._UnlockedGetInstanceInfo(instance_name) |
885 | a8083063 | Iustin Pop | |
886 | 0b2de758 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
887 | 0b2de758 | Iustin Pop | def GetAllInstancesInfo(self): |
888 | 0b2de758 | Iustin Pop | """Get the configuration of all instances.
|
889 | 0b2de758 | Iustin Pop |
|
890 | 0b2de758 | Iustin Pop | @rtype: dict
|
891 | 5fcc718f | Iustin Pop | @return: dict of (instance, instance_info), where instance_info is what
|
892 | 0b2de758 | Iustin Pop | would GetInstanceInfo return for the node
|
893 | 0b2de758 | Iustin Pop |
|
894 | 0b2de758 | Iustin Pop | """
|
895 | 64d3bd52 | Guido Trotter | my_dict = dict([(instance, self._UnlockedGetInstanceInfo(instance)) |
896 | 64d3bd52 | Guido Trotter | for instance in self._UnlockedGetInstanceList()]) |
897 | 0b2de758 | Iustin Pop | return my_dict
|
898 | 0b2de758 | Iustin Pop | |
899 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
900 | a8083063 | Iustin Pop | def AddNode(self, node): |
901 | a8083063 | Iustin Pop | """Add a node to the configuration.
|
902 | a8083063 | Iustin Pop |
|
903 | c41eea6e | Iustin Pop | @type node: L{objects.Node}
|
904 | c41eea6e | Iustin Pop | @param node: a Node instance
|
905 | a8083063 | Iustin Pop |
|
906 | a8083063 | Iustin Pop | """
|
907 | d8470559 | Michael Hanselmann | logging.info("Adding node %s to configuration" % node.name)
|
908 | d8470559 | Michael Hanselmann | |
909 | 430b923c | Iustin Pop | self._EnsureUUID(node)
|
910 | 430b923c | Iustin Pop | |
911 | b989e85d | Iustin Pop | node.serial_no = 1
|
912 | d693c864 | Iustin Pop | node.ctime = node.mtime = time.time() |
913 | a8083063 | Iustin Pop | self._config_data.nodes[node.name] = node
|
914 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
915 | a8083063 | Iustin Pop | self._WriteConfig()
|
916 | a8083063 | Iustin Pop | |
917 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
918 | a8083063 | Iustin Pop | def RemoveNode(self, node_name): |
919 | a8083063 | Iustin Pop | """Remove a node from the configuration.
|
920 | a8083063 | Iustin Pop |
|
921 | a8083063 | Iustin Pop | """
|
922 | d8470559 | Michael Hanselmann | logging.info("Removing node %s from configuration" % node_name)
|
923 | d8470559 | Michael Hanselmann | |
924 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
925 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Unknown node '%s'" % node_name) |
926 | a8083063 | Iustin Pop | |
927 | a8083063 | Iustin Pop | del self._config_data.nodes[node_name] |
928 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
929 | a8083063 | Iustin Pop | self._WriteConfig()
|
930 | a8083063 | Iustin Pop | |
931 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
932 | a8083063 | Iustin Pop | def ExpandNodeName(self, short_name): |
933 | a8083063 | Iustin Pop | """Attempt to expand an incomplete instance name.
|
934 | a8083063 | Iustin Pop |
|
935 | a8083063 | Iustin Pop | """
|
936 | a8083063 | Iustin Pop | return utils.MatchNameComponent(short_name,
|
937 | a8083063 | Iustin Pop | self._config_data.nodes.keys())
|
938 | a8083063 | Iustin Pop | |
939 | f78ede4e | Guido Trotter | def _UnlockedGetNodeInfo(self, node_name): |
940 | a8083063 | Iustin Pop | """Get the configuration of a node, as stored in the config.
|
941 | a8083063 | Iustin Pop |
|
942 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
943 | c41eea6e | Iustin Pop | held.
|
944 | f78ede4e | Guido Trotter |
|
945 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
946 | a8083063 | Iustin Pop |
|
947 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
948 | c41eea6e | Iustin Pop | @return: the node object
|
949 | a8083063 | Iustin Pop |
|
950 | a8083063 | Iustin Pop | """
|
951 | a8083063 | Iustin Pop | if node_name not in self._config_data.nodes: |
952 | a8083063 | Iustin Pop | return None |
953 | a8083063 | Iustin Pop | |
954 | a8083063 | Iustin Pop | return self._config_data.nodes[node_name] |
955 | a8083063 | Iustin Pop | |
956 | f78ede4e | Guido Trotter | |
957 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
958 | f78ede4e | Guido Trotter | def GetNodeInfo(self, node_name): |
959 | f78ede4e | Guido Trotter | """Get the configuration of a node, as stored in the config.
|
960 | f78ede4e | Guido Trotter |
|
961 | c41eea6e | Iustin Pop | This is just a locked wrapper over L{_UnlockedGetNodeInfo}.
|
962 | f78ede4e | Guido Trotter |
|
963 | c41eea6e | Iustin Pop | @param node_name: the node name, e.g. I{node1.example.com}
|
964 | c41eea6e | Iustin Pop |
|
965 | c41eea6e | Iustin Pop | @rtype: L{objects.Node}
|
966 | c41eea6e | Iustin Pop | @return: the node object
|
967 | f78ede4e | Guido Trotter |
|
968 | f78ede4e | Guido Trotter | """
|
969 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeInfo(node_name) |
970 | f78ede4e | Guido Trotter | |
971 | f78ede4e | Guido Trotter | def _UnlockedGetNodeList(self): |
972 | a8083063 | Iustin Pop | """Return the list of nodes which are in the configuration.
|
973 | a8083063 | Iustin Pop |
|
974 | c41eea6e | Iustin Pop | This function is for internal use, when the config lock is already
|
975 | c41eea6e | Iustin Pop | held.
|
976 | c41eea6e | Iustin Pop |
|
977 | c41eea6e | Iustin Pop | @rtype: list
|
978 | f78ede4e | Guido Trotter |
|
979 | a8083063 | Iustin Pop | """
|
980 | a8083063 | Iustin Pop | return self._config_data.nodes.keys() |
981 | a8083063 | Iustin Pop | |
982 | f78ede4e | Guido Trotter | |
983 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
984 | f78ede4e | Guido Trotter | def GetNodeList(self): |
985 | f78ede4e | Guido Trotter | """Return the list of nodes which are in the configuration.
|
986 | f78ede4e | Guido Trotter |
|
987 | f78ede4e | Guido Trotter | """
|
988 | f78ede4e | Guido Trotter | return self._UnlockedGetNodeList() |
989 | f78ede4e | Guido Trotter | |
990 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
991 | 94a02bb5 | Iustin Pop | def GetOnlineNodeList(self): |
992 | 94a02bb5 | Iustin Pop | """Return the list of nodes which are online.
|
993 | 94a02bb5 | Iustin Pop |
|
994 | 94a02bb5 | Iustin Pop | """
|
995 | 94a02bb5 | Iustin Pop | all_nodes = [self._UnlockedGetNodeInfo(node)
|
996 | 94a02bb5 | Iustin Pop | for node in self._UnlockedGetNodeList()] |
997 | 94a02bb5 | Iustin Pop | return [node.name for node in all_nodes if not node.offline] |
998 | 94a02bb5 | Iustin Pop | |
999 | 94a02bb5 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1000 | d65e5776 | Iustin Pop | def GetAllNodesInfo(self): |
1001 | d65e5776 | Iustin Pop | """Get the configuration of all nodes.
|
1002 | d65e5776 | Iustin Pop |
|
1003 | d65e5776 | Iustin Pop | @rtype: dict
|
1004 | ec0292f1 | Iustin Pop | @return: dict of (node, node_info), where node_info is what
|
1005 | d65e5776 | Iustin Pop | would GetNodeInfo return for the node
|
1006 | d65e5776 | Iustin Pop |
|
1007 | d65e5776 | Iustin Pop | """
|
1008 | d65e5776 | Iustin Pop | my_dict = dict([(node, self._UnlockedGetNodeInfo(node)) |
1009 | d65e5776 | Iustin Pop | for node in self._UnlockedGetNodeList()]) |
1010 | d65e5776 | Iustin Pop | return my_dict
|
1011 | d65e5776 | Iustin Pop | |
1012 | 23f06b2b | Iustin Pop | def _UnlockedGetMasterCandidateStats(self, exceptions=None): |
1013 | ec0292f1 | Iustin Pop | """Get the number of current and maximum desired and possible candidates.
|
1014 | ec0292f1 | Iustin Pop |
|
1015 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1016 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1017 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1018 | ec0292f1 | Iustin Pop | @return: tuple of (current, desired and possible)
|
1019 | ec0292f1 | Iustin Pop |
|
1020 | ec0292f1 | Iustin Pop | """
|
1021 | ec0292f1 | Iustin Pop | mc_now = mc_max = 0
|
1022 | 23f06b2b | Iustin Pop | for node in self._config_data.nodes.values(): |
1023 | 23f06b2b | Iustin Pop | if exceptions and node.name in exceptions: |
1024 | 23f06b2b | Iustin Pop | continue
|
1025 | 5bf07049 | Iustin Pop | if not (node.offline or node.drained): |
1026 | ec0292f1 | Iustin Pop | mc_max += 1
|
1027 | ec0292f1 | Iustin Pop | if node.master_candidate:
|
1028 | ec0292f1 | Iustin Pop | mc_now += 1
|
1029 | ec0292f1 | Iustin Pop | mc_max = min(mc_max, self._config_data.cluster.candidate_pool_size) |
1030 | ec0292f1 | Iustin Pop | return (mc_now, mc_max)
|
1031 | ec0292f1 | Iustin Pop | |
1032 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock, shared=1) |
1033 | 23f06b2b | Iustin Pop | def GetMasterCandidateStats(self, exceptions=None): |
1034 | ec0292f1 | Iustin Pop | """Get the number of current and maximum possible candidates.
|
1035 | ec0292f1 | Iustin Pop |
|
1036 | ec0292f1 | Iustin Pop | This is just a wrapper over L{_UnlockedGetMasterCandidateStats}.
|
1037 | ec0292f1 | Iustin Pop |
|
1038 | 23f06b2b | Iustin Pop | @type exceptions: list
|
1039 | 23f06b2b | Iustin Pop | @param exceptions: if passed, list of nodes that should be ignored
|
1040 | ec0292f1 | Iustin Pop | @rtype: tuple
|
1041 | ec0292f1 | Iustin Pop | @return: tuple of (current, max)
|
1042 | ec0292f1 | Iustin Pop |
|
1043 | ec0292f1 | Iustin Pop | """
|
1044 | 23f06b2b | Iustin Pop | return self._UnlockedGetMasterCandidateStats(exceptions) |
1045 | ec0292f1 | Iustin Pop | |
1046 | ec0292f1 | Iustin Pop | @locking.ssynchronized(_config_lock)
|
1047 | ec0292f1 | Iustin Pop | def MaintainCandidatePool(self): |
1048 | ec0292f1 | Iustin Pop | """Try to grow the candidate pool to the desired size.
|
1049 | ec0292f1 | Iustin Pop |
|
1050 | ec0292f1 | Iustin Pop | @rtype: list
|
1051 | ee513a66 | Iustin Pop | @return: list with the adjusted nodes (L{objects.Node} instances)
|
1052 | ec0292f1 | Iustin Pop |
|
1053 | ec0292f1 | Iustin Pop | """
|
1054 | ec0292f1 | Iustin Pop | mc_now, mc_max = self._UnlockedGetMasterCandidateStats()
|
1055 | ec0292f1 | Iustin Pop | mod_list = [] |
1056 | ec0292f1 | Iustin Pop | if mc_now < mc_max:
|
1057 | ec0292f1 | Iustin Pop | node_list = self._config_data.nodes.keys()
|
1058 | ec0292f1 | Iustin Pop | random.shuffle(node_list) |
1059 | ec0292f1 | Iustin Pop | for name in node_list: |
1060 | ec0292f1 | Iustin Pop | if mc_now >= mc_max:
|
1061 | ec0292f1 | Iustin Pop | break
|
1062 | ec0292f1 | Iustin Pop | node = self._config_data.nodes[name]
|
1063 | 5bf07049 | Iustin Pop | if node.master_candidate or node.offline or node.drained: |
1064 | ec0292f1 | Iustin Pop | continue
|
1065 | ee513a66 | Iustin Pop | mod_list.append(node) |
1066 | ec0292f1 | Iustin Pop | node.master_candidate = True
|
1067 | ec0292f1 | Iustin Pop | node.serial_no += 1
|
1068 | ec0292f1 | Iustin Pop | mc_now += 1
|
1069 | ec0292f1 | Iustin Pop | if mc_now != mc_max:
|
1070 | ec0292f1 | Iustin Pop | # this should not happen
|
1071 | ec0292f1 | Iustin Pop | logging.warning("Warning: MaintainCandidatePool didn't manage to"
|
1072 | ec0292f1 | Iustin Pop | " fill the candidate pool (%d/%d)", mc_now, mc_max)
|
1073 | ec0292f1 | Iustin Pop | if mod_list:
|
1074 | ec0292f1 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1075 | ec0292f1 | Iustin Pop | self._WriteConfig()
|
1076 | ec0292f1 | Iustin Pop | |
1077 | ec0292f1 | Iustin Pop | return mod_list
|
1078 | ec0292f1 | Iustin Pop | |
1079 | a8083063 | Iustin Pop | def _BumpSerialNo(self): |
1080 | a8083063 | Iustin Pop | """Bump up the serial number of the config.
|
1081 | a8083063 | Iustin Pop |
|
1082 | a8083063 | Iustin Pop | """
|
1083 | 9d38c6e1 | Iustin Pop | self._config_data.serial_no += 1 |
1084 | d693c864 | Iustin Pop | self._config_data.mtime = time.time()
|
1085 | a8083063 | Iustin Pop | |
1086 | 76d5d3a3 | Iustin Pop | def _AllUUIDObjects(self): |
1087 | 76d5d3a3 | Iustin Pop | """Returns all objects with uuid attributes.
|
1088 | 76d5d3a3 | Iustin Pop |
|
1089 | 76d5d3a3 | Iustin Pop | """
|
1090 | 76d5d3a3 | Iustin Pop | return (self._config_data.instances.values() + |
1091 | 76d5d3a3 | Iustin Pop | self._config_data.nodes.values() +
|
1092 | 76d5d3a3 | Iustin Pop | [self._config_data.cluster])
|
1093 | 76d5d3a3 | Iustin Pop | |
1094 | a8083063 | Iustin Pop | def _OpenConfig(self): |
1095 | a8083063 | Iustin Pop | """Read the config data from disk.
|
1096 | a8083063 | Iustin Pop |
|
1097 | a8083063 | Iustin Pop | """
|
1098 | 13998ef2 | Michael Hanselmann | raw_data = utils.ReadFile(self._cfg_file)
|
1099 | 13998ef2 | Michael Hanselmann | |
1100 | a8083063 | Iustin Pop | try:
|
1101 | 13998ef2 | Michael Hanselmann | data = objects.ConfigData.FromDict(serializer.Load(raw_data)) |
1102 | 13998ef2 | Michael Hanselmann | except Exception, err: |
1103 | 13998ef2 | Michael Hanselmann | raise errors.ConfigurationError(err)
|
1104 | 5b263ed7 | Michael Hanselmann | |
1105 | 5b263ed7 | Michael Hanselmann | # Make sure the configuration has the right version
|
1106 | 5b263ed7 | Michael Hanselmann | _ValidateConfig(data) |
1107 | 5b263ed7 | Michael Hanselmann | |
1108 | a8083063 | Iustin Pop | if (not hasattr(data, 'cluster') or |
1109 | 243cdbcc | Michael Hanselmann | not hasattr(data.cluster, 'rsahostkeypub')): |
1110 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Incomplete configuration" |
1111 | 243cdbcc | Michael Hanselmann | " (missing cluster.rsahostkeypub)")
|
1112 | 90d726a8 | Iustin Pop | |
1113 | 90d726a8 | Iustin Pop | # Upgrade configuration if needed
|
1114 | 90d726a8 | Iustin Pop | data.UpgradeConfig() |
1115 | 90d726a8 | Iustin Pop | |
1116 | a8083063 | Iustin Pop | self._config_data = data
|
1117 | 3c7f6c44 | Iustin Pop | # reset the last serial as -1 so that the next write will cause
|
1118 | 0779e3aa | Iustin Pop | # ssconf update
|
1119 | 0779e3aa | Iustin Pop | self._last_cluster_serial = -1 |
1120 | a8083063 | Iustin Pop | |
1121 | 76d5d3a3 | Iustin Pop | # And finally run our (custom) config upgrade sequence
|
1122 | 76d5d3a3 | Iustin Pop | self._UpgradeConfig()
|
1123 | 76d5d3a3 | Iustin Pop | |
1124 | 76d5d3a3 | Iustin Pop | def _UpgradeConfig(self): |
1125 | 76d5d3a3 | Iustin Pop | """Run upgrade steps that cannot be done purely in the objects.
|
1126 | 76d5d3a3 | Iustin Pop |
|
1127 | 76d5d3a3 | Iustin Pop | This is because some data elements need uniqueness across the
|
1128 | 76d5d3a3 | Iustin Pop | whole configuration, etc.
|
1129 | 76d5d3a3 | Iustin Pop |
|
1130 | 76d5d3a3 | Iustin Pop | @warning: this function will call L{_WriteConfig()}, so it needs
|
1131 | 76d5d3a3 | Iustin Pop | to either be called with the lock held or from a safe place
|
1132 | 76d5d3a3 | Iustin Pop | (the constructor)
|
1133 | 76d5d3a3 | Iustin Pop |
|
1134 | 76d5d3a3 | Iustin Pop | """
|
1135 | 76d5d3a3 | Iustin Pop | modified = False
|
1136 | 76d5d3a3 | Iustin Pop | for item in self._AllUUIDObjects(): |
1137 | 76d5d3a3 | Iustin Pop | if item.uuid is None: |
1138 | 430b923c | Iustin Pop | item.uuid = self._GenerateUniqueID()
|
1139 | 76d5d3a3 | Iustin Pop | modified = True
|
1140 | 76d5d3a3 | Iustin Pop | if modified:
|
1141 | 76d5d3a3 | Iustin Pop | self._WriteConfig()
|
1142 | 76d5d3a3 | Iustin Pop | |
1143 | a8083063 | Iustin Pop | def _DistributeConfig(self): |
1144 | a8083063 | Iustin Pop | """Distribute the configuration to the other nodes.
|
1145 | a8083063 | Iustin Pop |
|
1146 | a8083063 | Iustin Pop | Currently, this only copies the configuration file. In the future,
|
1147 | a8083063 | Iustin Pop | it could be used to encapsulate the 2/3-phase update mechanism.
|
1148 | a8083063 | Iustin Pop |
|
1149 | a8083063 | Iustin Pop | """
|
1150 | a8083063 | Iustin Pop | if self._offline: |
1151 | a8083063 | Iustin Pop | return True |
1152 | a8083063 | Iustin Pop | bad = False
|
1153 | a8083063 | Iustin Pop | |
1154 | 6a5b8b4b | Iustin Pop | node_list = [] |
1155 | 6a5b8b4b | Iustin Pop | addr_list = [] |
1156 | 6a5b8b4b | Iustin Pop | myhostname = self._my_hostname
|
1157 | 6b294c53 | Iustin Pop | # we can skip checking whether _UnlockedGetNodeInfo returns None
|
1158 | 6b294c53 | Iustin Pop | # since the node list comes from _UnlocketGetNodeList, and we are
|
1159 | 6b294c53 | Iustin Pop | # called with the lock held, so no modifications should take place
|
1160 | 6b294c53 | Iustin Pop | # in between
|
1161 | 6a5b8b4b | Iustin Pop | for node_name in self._UnlockedGetNodeList(): |
1162 | 6a5b8b4b | Iustin Pop | if node_name == myhostname:
|
1163 | 6a5b8b4b | Iustin Pop | continue
|
1164 | 6a5b8b4b | Iustin Pop | node_info = self._UnlockedGetNodeInfo(node_name)
|
1165 | 6a5b8b4b | Iustin Pop | if not node_info.master_candidate: |
1166 | 6a5b8b4b | Iustin Pop | continue
|
1167 | 6a5b8b4b | Iustin Pop | node_list.append(node_info.name) |
1168 | 6a5b8b4b | Iustin Pop | addr_list.append(node_info.primary_ip) |
1169 | 6b294c53 | Iustin Pop | |
1170 | 6a5b8b4b | Iustin Pop | result = rpc.RpcRunner.call_upload_file(node_list, self._cfg_file,
|
1171 | 6a5b8b4b | Iustin Pop | address_list=addr_list) |
1172 | 1b54fc6c | Guido Trotter | for to_node, to_result in result.items(): |
1173 | 3cebe102 | Michael Hanselmann | msg = to_result.fail_msg |
1174 | 1b54fc6c | Guido Trotter | if msg:
|
1175 | 1b54fc6c | Guido Trotter | msg = ("Copy of file %s to node %s failed: %s" %
|
1176 | dd7db360 | Iustin Pop | (self._cfg_file, to_node, msg))
|
1177 | 1b54fc6c | Guido Trotter | logging.error(msg) |
1178 | a8083063 | Iustin Pop | bad = True
|
1179 | a8083063 | Iustin Pop | return not bad |
1180 | a8083063 | Iustin Pop | |
1181 | a8083063 | Iustin Pop | def _WriteConfig(self, destination=None): |
1182 | a8083063 | Iustin Pop | """Write the configuration data to persistent storage.
|
1183 | a8083063 | Iustin Pop |
|
1184 | a8083063 | Iustin Pop | """
|
1185 | 34d657ba | Iustin Pop | # first, cleanup the _temporary_ids set, if an ID is now in the
|
1186 | 34d657ba | Iustin Pop | # other objects it should be discarded to prevent unbounded growth
|
1187 | 34d657ba | Iustin Pop | # of that structure
|
1188 | 34d657ba | Iustin Pop | self._CleanupTemporaryIDs()
|
1189 | 4a89c54a | Iustin Pop | config_errors = self._UnlockedVerifyConfig()
|
1190 | 4a89c54a | Iustin Pop | if config_errors:
|
1191 | 4a89c54a | Iustin Pop | raise errors.ConfigurationError("Configuration data is not" |
1192 | 4a89c54a | Iustin Pop | " consistent: %s" %
|
1193 | 4a89c54a | Iustin Pop | (", ".join(config_errors)))
|
1194 | a8083063 | Iustin Pop | if destination is None: |
1195 | a8083063 | Iustin Pop | destination = self._cfg_file
|
1196 | a8083063 | Iustin Pop | self._BumpSerialNo()
|
1197 | 8d14b30d | Iustin Pop | txt = serializer.Dump(self._config_data.ToDict())
|
1198 | 13998ef2 | Michael Hanselmann | |
1199 | 13998ef2 | Michael Hanselmann | utils.WriteFile(destination, data=txt) |
1200 | 13998ef2 | Michael Hanselmann | |
1201 | 14e15659 | Iustin Pop | self.write_count += 1 |
1202 | 3d3a04bc | Iustin Pop | |
1203 | f56618e0 | Iustin Pop | # and redistribute the config file to master candidates
|
1204 | a8083063 | Iustin Pop | self._DistributeConfig()
|
1205 | a8083063 | Iustin Pop | |
1206 | 54d1a06e | Michael Hanselmann | # Write ssconf files on all nodes (including locally)
|
1207 | 0779e3aa | Iustin Pop | if self._last_cluster_serial < self._config_data.cluster.serial_no: |
1208 | d9a855f1 | Michael Hanselmann | if not self._offline: |
1209 | e1e75d00 | Iustin Pop | result = rpc.RpcRunner.call_write_ssconf_files(\ |
1210 | e1e75d00 | Iustin Pop | self._UnlockedGetNodeList(),
|
1211 | e1e75d00 | Iustin Pop | self._UnlockedGetSsconfValues())
|
1212 | e1e75d00 | Iustin Pop | for nname, nresu in result.items(): |
1213 | 3cebe102 | Michael Hanselmann | msg = nresu.fail_msg |
1214 | e1e75d00 | Iustin Pop | if msg:
|
1215 | e1e75d00 | Iustin Pop | logging.warning("Error while uploading ssconf files to"
|
1216 | e1e75d00 | Iustin Pop | " node %s: %s", nname, msg)
|
1217 | 0779e3aa | Iustin Pop | self._last_cluster_serial = self._config_data.cluster.serial_no |
1218 | 54d1a06e | Michael Hanselmann | |
1219 | 03d1dba2 | Michael Hanselmann | def _UnlockedGetSsconfValues(self): |
1220 | 054596f0 | Iustin Pop | """Return the values needed by ssconf.
|
1221 | 054596f0 | Iustin Pop |
|
1222 | 054596f0 | Iustin Pop | @rtype: dict
|
1223 | 054596f0 | Iustin Pop | @return: a dictionary with keys the ssconf names and values their
|
1224 | 054596f0 | Iustin Pop | associated value
|
1225 | 054596f0 | Iustin Pop |
|
1226 | 054596f0 | Iustin Pop | """
|
1227 | a3316e4a | Iustin Pop | fn = "\n".join
|
1228 | 81a49123 | Iustin Pop | instance_names = utils.NiceSort(self._UnlockedGetInstanceList())
|
1229 | a3316e4a | Iustin Pop | node_names = utils.NiceSort(self._UnlockedGetNodeList())
|
1230 | a3316e4a | Iustin Pop | node_info = [self._UnlockedGetNodeInfo(name) for name in node_names] |
1231 | c3029d0a | Luca Bigliardi | node_pri_ips = ["%s %s" % (ninfo.name, ninfo.primary_ip)
|
1232 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1233 | c3029d0a | Luca Bigliardi | node_snd_ips = ["%s %s" % (ninfo.name, ninfo.secondary_ip)
|
1234 | 5909fb97 | Luca Bigliardi | for ninfo in node_info] |
1235 | a3316e4a | Iustin Pop | |
1236 | 81a49123 | Iustin Pop | instance_data = fn(instance_names) |
1237 | a3316e4a | Iustin Pop | off_data = fn(node.name for node in node_info if node.offline) |
1238 | 81a49123 | Iustin Pop | on_data = fn(node.name for node in node_info if not node.offline) |
1239 | a3316e4a | Iustin Pop | mc_data = fn(node.name for node in node_info if node.master_candidate) |
1240 | 8113a52e | Luca Bigliardi | mc_ips_data = fn(node.primary_ip for node in node_info |
1241 | 8113a52e | Luca Bigliardi | if node.master_candidate)
|
1242 | a3316e4a | Iustin Pop | node_data = fn(node_names) |
1243 | f9780ccd | Luca Bigliardi | node_pri_ips_data = fn(node_pri_ips) |
1244 | f9780ccd | Luca Bigliardi | node_snd_ips_data = fn(node_snd_ips) |
1245 | f56618e0 | Iustin Pop | |
1246 | 054596f0 | Iustin Pop | cluster = self._config_data.cluster
|
1247 | 5d60b3bd | Iustin Pop | cluster_tags = fn(cluster.GetTags()) |
1248 | 03d1dba2 | Michael Hanselmann | return {
|
1249 | 054596f0 | Iustin Pop | constants.SS_CLUSTER_NAME: cluster.cluster_name, |
1250 | 5d60b3bd | Iustin Pop | constants.SS_CLUSTER_TAGS: cluster_tags, |
1251 | 054596f0 | Iustin Pop | constants.SS_FILE_STORAGE_DIR: cluster.file_storage_dir, |
1252 | a3316e4a | Iustin Pop | constants.SS_MASTER_CANDIDATES: mc_data, |
1253 | 8113a52e | Luca Bigliardi | constants.SS_MASTER_CANDIDATES_IPS: mc_ips_data, |
1254 | 054596f0 | Iustin Pop | constants.SS_MASTER_IP: cluster.master_ip, |
1255 | 054596f0 | Iustin Pop | constants.SS_MASTER_NETDEV: cluster.master_netdev, |
1256 | 054596f0 | Iustin Pop | constants.SS_MASTER_NODE: cluster.master_node, |
1257 | a3316e4a | Iustin Pop | constants.SS_NODE_LIST: node_data, |
1258 | f9780ccd | Luca Bigliardi | constants.SS_NODE_PRIMARY_IPS: node_pri_ips_data, |
1259 | f9780ccd | Luca Bigliardi | constants.SS_NODE_SECONDARY_IPS: node_snd_ips_data, |
1260 | a3316e4a | Iustin Pop | constants.SS_OFFLINE_NODES: off_data, |
1261 | 81a49123 | Iustin Pop | constants.SS_ONLINE_NODES: on_data, |
1262 | 81a49123 | Iustin Pop | constants.SS_INSTANCE_LIST: instance_data, |
1263 | 8a113c7a | Iustin Pop | constants.SS_RELEASE_VERSION: constants.RELEASE_VERSION, |
1264 | 03d1dba2 | Michael Hanselmann | } |
1265 | 03d1dba2 | Michael Hanselmann | |
1266 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1267 | a8083063 | Iustin Pop | def GetVGName(self): |
1268 | a8083063 | Iustin Pop | """Return the volume group name.
|
1269 | a8083063 | Iustin Pop |
|
1270 | a8083063 | Iustin Pop | """
|
1271 | a8083063 | Iustin Pop | return self._config_data.cluster.volume_group_name |
1272 | a8083063 | Iustin Pop | |
1273 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1274 | 89ff8e15 | Manuel Franceschini | def SetVGName(self, vg_name): |
1275 | 89ff8e15 | Manuel Franceschini | """Set the volume group name.
|
1276 | 89ff8e15 | Manuel Franceschini |
|
1277 | 89ff8e15 | Manuel Franceschini | """
|
1278 | 2d4011cd | Manuel Franceschini | self._config_data.cluster.volume_group_name = vg_name
|
1279 | b9f72b4e | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1280 | 89ff8e15 | Manuel Franceschini | self._WriteConfig()
|
1281 | 89ff8e15 | Manuel Franceschini | |
1282 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1283 | a8083063 | Iustin Pop | def GetMACPrefix(self): |
1284 | a8083063 | Iustin Pop | """Return the mac prefix.
|
1285 | a8083063 | Iustin Pop |
|
1286 | a8083063 | Iustin Pop | """
|
1287 | a8083063 | Iustin Pop | return self._config_data.cluster.mac_prefix |
1288 | 62779dd0 | Iustin Pop | |
1289 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock, shared=1) |
1290 | 62779dd0 | Iustin Pop | def GetClusterInfo(self): |
1291 | 5bbd3f7f | Michael Hanselmann | """Returns information about the cluster
|
1292 | 62779dd0 | Iustin Pop |
|
1293 | c41eea6e | Iustin Pop | @rtype: L{objects.Cluster}
|
1294 | c41eea6e | Iustin Pop | @return: the cluster object
|
1295 | 62779dd0 | Iustin Pop |
|
1296 | 62779dd0 | Iustin Pop | """
|
1297 | 62779dd0 | Iustin Pop | return self._config_data.cluster |
1298 | e00fb268 | Iustin Pop | |
1299 | f78ede4e | Guido Trotter | @locking.ssynchronized(_config_lock)
|
1300 | e00fb268 | Iustin Pop | def Update(self, target): |
1301 | e00fb268 | Iustin Pop | """Notify function to be called after updates.
|
1302 | e00fb268 | Iustin Pop |
|
1303 | e00fb268 | Iustin Pop | This function must be called when an object (as returned by
|
1304 | e00fb268 | Iustin Pop | GetInstanceInfo, GetNodeInfo, GetCluster) has been updated and the
|
1305 | e00fb268 | Iustin Pop | caller wants the modifications saved to the backing store. Note
|
1306 | e00fb268 | Iustin Pop | that all modified objects will be saved, but the target argument
|
1307 | e00fb268 | Iustin Pop | is the one the caller wants to ensure that it's saved.
|
1308 | e00fb268 | Iustin Pop |
|
1309 | c41eea6e | Iustin Pop | @param target: an instance of either L{objects.Cluster},
|
1310 | c41eea6e | Iustin Pop | L{objects.Node} or L{objects.Instance} which is existing in
|
1311 | c41eea6e | Iustin Pop | the cluster
|
1312 | c41eea6e | Iustin Pop |
|
1313 | e00fb268 | Iustin Pop | """
|
1314 | e00fb268 | Iustin Pop | if self._config_data is None: |
1315 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Configuration file not read," |
1316 | 3ecf6786 | Iustin Pop | " cannot save.")
|
1317 | f34901f8 | Iustin Pop | update_serial = False
|
1318 | e00fb268 | Iustin Pop | if isinstance(target, objects.Cluster): |
1319 | e00fb268 | Iustin Pop | test = target == self._config_data.cluster
|
1320 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Node): |
1321 | e00fb268 | Iustin Pop | test = target in self._config_data.nodes.values() |
1322 | f34901f8 | Iustin Pop | update_serial = True
|
1323 | e00fb268 | Iustin Pop | elif isinstance(target, objects.Instance): |
1324 | e00fb268 | Iustin Pop | test = target in self._config_data.instances.values() |
1325 | e00fb268 | Iustin Pop | else:
|
1326 | 3ecf6786 | Iustin Pop | raise errors.ProgrammerError("Invalid object type (%s) passed to" |
1327 | 3ecf6786 | Iustin Pop | " ConfigWriter.Update" % type(target)) |
1328 | e00fb268 | Iustin Pop | if not test: |
1329 | 3ecf6786 | Iustin Pop | raise errors.ConfigurationError("Configuration updated since object" |
1330 | 3ecf6786 | Iustin Pop | " has been read or unknown object")
|
1331 | f34901f8 | Iustin Pop | target.serial_no += 1
|
1332 | d693c864 | Iustin Pop | target.mtime = now = time.time() |
1333 | f34901f8 | Iustin Pop | |
1334 | cff4c037 | Iustin Pop | if update_serial:
|
1335 | f34901f8 | Iustin Pop | # for node updates, we need to increase the cluster serial too
|
1336 | f34901f8 | Iustin Pop | self._config_data.cluster.serial_no += 1 |
1337 | d693c864 | Iustin Pop | self._config_data.cluster.mtime = now
|
1338 | b989e85d | Iustin Pop | |
1339 | 61cf6b5e | Iustin Pop | if isinstance(target, objects.Instance): |
1340 | 61cf6b5e | Iustin Pop | self._UnlockedReleaseDRBDMinors(target.name)
|
1341 | e7d81ba0 | Iustin Pop | for nic in target.nics: |
1342 | e7d81ba0 | Iustin Pop | self._temporary_macs.discard(nic.mac)
|
1343 | 61cf6b5e | Iustin Pop | |
1344 | e00fb268 | Iustin Pop | self._WriteConfig() |