root / src / Ganeti / Config.hs @ d6a7518a
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1 | eaa64cd8 | Iustin Pop | {-| Implementation of the Ganeti configuration database. |
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2 | eaa64cd8 | Iustin Pop | |
3 | eaa64cd8 | Iustin Pop | -} |
4 | eaa64cd8 | Iustin Pop | |
5 | eaa64cd8 | Iustin Pop | {- |
6 | eaa64cd8 | Iustin Pop | |
7 | eaa64cd8 | Iustin Pop | Copyright (C) 2011, 2012 Google Inc. |
8 | eaa64cd8 | Iustin Pop | |
9 | eaa64cd8 | Iustin Pop | This program is free software; you can redistribute it and/or modify |
10 | eaa64cd8 | Iustin Pop | it under the terms of the GNU General Public License as published by |
11 | eaa64cd8 | Iustin Pop | the Free Software Foundation; either version 2 of the License, or |
12 | eaa64cd8 | Iustin Pop | (at your option) any later version. |
13 | eaa64cd8 | Iustin Pop | |
14 | eaa64cd8 | Iustin Pop | This program is distributed in the hope that it will be useful, but |
15 | eaa64cd8 | Iustin Pop | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | eaa64cd8 | Iustin Pop | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 | eaa64cd8 | Iustin Pop | General Public License for more details. |
18 | eaa64cd8 | Iustin Pop | |
19 | eaa64cd8 | Iustin Pop | You should have received a copy of the GNU General Public License |
20 | eaa64cd8 | Iustin Pop | along with this program; if not, write to the Free Software |
21 | eaa64cd8 | Iustin Pop | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
22 | eaa64cd8 | Iustin Pop | 02110-1301, USA. |
23 | eaa64cd8 | Iustin Pop | |
24 | eaa64cd8 | Iustin Pop | -} |
25 | eaa64cd8 | Iustin Pop | |
26 | eaa64cd8 | Iustin Pop | module Ganeti.Config |
27 | eaa64cd8 | Iustin Pop | ( LinkIpMap |
28 | da45c352 | Iustin Pop | , NdParamObject(..) |
29 | eaa64cd8 | Iustin Pop | , loadConfig |
30 | eaa64cd8 | Iustin Pop | , getNodeInstances |
31 | da45c352 | Iustin Pop | , getNodeRole |
32 | da45c352 | Iustin Pop | , getNodeNdParams |
33 | eaa64cd8 | Iustin Pop | , getDefaultNicLink |
34 | 0ec87781 | Iustin Pop | , getDefaultHypervisor |
35 | eaa64cd8 | Iustin Pop | , getInstancesIpByLink |
36 | f5a67757 | Klaus Aehlig | , getMasterCandidates |
37 | eaa64cd8 | Iustin Pop | , getNode |
38 | eaa64cd8 | Iustin Pop | , getInstance |
39 | 4cd428db | Iustin Pop | , getGroup |
40 | da45c352 | Iustin Pop | , getGroupNdParams |
41 | e5cb098c | Agata Murawska | , getGroupIpolicy |
42 | 90d033ef | Iustin Pop | , getGroupDiskParams |
43 | e5cb098c | Agata Murawska | , getGroupNodes |
44 | e5cb098c | Agata Murawska | , getGroupInstances |
45 | da45c352 | Iustin Pop | , getGroupOfNode |
46 | eaa64cd8 | Iustin Pop | , getInstPrimaryNode |
47 | d81ec8b7 | Iustin Pop | , getInstMinorsForNode |
48 | 9491766c | Hrvoje Ribicic | , getInstAllNodes |
49 | 4e6f1cde | Hrvoje Ribicic | , getFilledInstHvParams |
50 | 4e6f1cde | Hrvoje Ribicic | , getFilledInstBeParams |
51 | 4e6f1cde | Hrvoje Ribicic | , getFilledInstOsParams |
52 | 05092772 | Helga Velroyen | , getNetwork |
53 | eaa64cd8 | Iustin Pop | , buildLinkIpInstnameMap |
54 | 7b2ead5a | Iustin Pop | , instNodes |
55 | eaa64cd8 | Iustin Pop | ) where |
56 | eaa64cd8 | Iustin Pop | |
57 | 2cdaf225 | Iustin Pop | import Control.Monad (liftM) |
58 | 66e40fd6 | Petr Pudlak | import Control.Monad.IO.Class (liftIO) |
59 | 9491766c | Hrvoje Ribicic | import Data.List (foldl', nub) |
60 | eaa64cd8 | Iustin Pop | import qualified Data.Map as M |
61 | 7b2ead5a | Iustin Pop | import qualified Data.Set as S |
62 | eaa64cd8 | Iustin Pop | import qualified Text.JSON as J |
63 | eaa64cd8 | Iustin Pop | |
64 | eaa64cd8 | Iustin Pop | import Ganeti.BasicTypes |
65 | eaa64cd8 | Iustin Pop | import qualified Ganeti.Constants as C |
66 | 5183e8be | Iustin Pop | import Ganeti.Errors |
67 | 5183e8be | Iustin Pop | import Ganeti.JSON |
68 | eaa64cd8 | Iustin Pop | import Ganeti.Objects |
69 | 22381768 | Iustin Pop | import Ganeti.Types |
70 | eaa64cd8 | Iustin Pop | |
71 | eaa64cd8 | Iustin Pop | -- | Type alias for the link and ip map. |
72 | eaa64cd8 | Iustin Pop | type LinkIpMap = M.Map String (M.Map String String) |
73 | eaa64cd8 | Iustin Pop | |
74 | da45c352 | Iustin Pop | -- | Type class denoting objects which have node parameters. |
75 | da45c352 | Iustin Pop | class NdParamObject a where |
76 | da45c352 | Iustin Pop | getNdParamsOf :: ConfigData -> a -> Maybe FilledNDParams |
77 | da45c352 | Iustin Pop | |
78 | eaa64cd8 | Iustin Pop | -- | Reads the config file. |
79 | 66e40fd6 | Petr Pudlak | readConfig :: FilePath -> IO (Result String) |
80 | 66e40fd6 | Petr Pudlak | readConfig = runResultT . liftIO . readFile |
81 | eaa64cd8 | Iustin Pop | |
82 | eaa64cd8 | Iustin Pop | -- | Parses the configuration file. |
83 | eaa64cd8 | Iustin Pop | parseConfig :: String -> Result ConfigData |
84 | eaa64cd8 | Iustin Pop | parseConfig = fromJResult "parsing configuration" . J.decodeStrict |
85 | eaa64cd8 | Iustin Pop | |
86 | eaa64cd8 | Iustin Pop | -- | Wrapper over 'readConfig' and 'parseConfig'. |
87 | eaa64cd8 | Iustin Pop | loadConfig :: FilePath -> IO (Result ConfigData) |
88 | 66e40fd6 | Petr Pudlak | loadConfig = fmap (>>= parseConfig) . readConfig |
89 | eaa64cd8 | Iustin Pop | |
90 | eaa64cd8 | Iustin Pop | -- * Query functions |
91 | eaa64cd8 | Iustin Pop | |
92 | 7b2ead5a | Iustin Pop | -- | Computes the nodes covered by a disk. |
93 | 7b2ead5a | Iustin Pop | computeDiskNodes :: Disk -> S.Set String |
94 | 7b2ead5a | Iustin Pop | computeDiskNodes dsk = |
95 | 7b2ead5a | Iustin Pop | case diskLogicalId dsk of |
96 | 7b2ead5a | Iustin Pop | LIDDrbd8 nodeA nodeB _ _ _ _ -> S.fromList [nodeA, nodeB] |
97 | 7b2ead5a | Iustin Pop | _ -> S.empty |
98 | 7b2ead5a | Iustin Pop | |
99 | 7b2ead5a | Iustin Pop | -- | Computes all disk-related nodes of an instance. For non-DRBD, |
100 | 7b2ead5a | Iustin Pop | -- this will be empty, for DRBD it will contain both the primary and |
101 | 7b2ead5a | Iustin Pop | -- the secondaries. |
102 | 7b2ead5a | Iustin Pop | instDiskNodes :: Instance -> S.Set String |
103 | 7b2ead5a | Iustin Pop | instDiskNodes = S.unions . map computeDiskNodes . instDisks |
104 | 7b2ead5a | Iustin Pop | |
105 | 7b2ead5a | Iustin Pop | -- | Computes all nodes of an instance. |
106 | 7b2ead5a | Iustin Pop | instNodes :: Instance -> S.Set String |
107 | 7b2ead5a | Iustin Pop | instNodes inst = instPrimaryNode inst `S.insert` instDiskNodes inst |
108 | 7b2ead5a | Iustin Pop | |
109 | 7b2ead5a | Iustin Pop | -- | Computes the secondary nodes of an instance. Since this is valid |
110 | 7b2ead5a | Iustin Pop | -- only for DRBD, we call directly 'instDiskNodes', skipping over the |
111 | 7b2ead5a | Iustin Pop | -- extra primary insert. |
112 | 7b2ead5a | Iustin Pop | instSecondaryNodes :: Instance -> S.Set String |
113 | 7b2ead5a | Iustin Pop | instSecondaryNodes inst = |
114 | 7b2ead5a | Iustin Pop | instPrimaryNode inst `S.delete` instDiskNodes inst |
115 | 7b2ead5a | Iustin Pop | |
116 | eaa64cd8 | Iustin Pop | -- | Get instances of a given node. |
117 | 1a4f3b38 | Michele Tartara | -- The node is specified through its UUID. |
118 | eaa64cd8 | Iustin Pop | getNodeInstances :: ConfigData -> String -> ([Instance], [Instance]) |
119 | eaa64cd8 | Iustin Pop | getNodeInstances cfg nname = |
120 | 84835174 | Iustin Pop | let all_inst = M.elems . fromContainer . configInstances $ cfg |
121 | eaa64cd8 | Iustin Pop | pri_inst = filter ((== nname) . instPrimaryNode) all_inst |
122 | 7b2ead5a | Iustin Pop | sec_inst = filter ((nname `S.member`) . instSecondaryNodes) all_inst |
123 | eaa64cd8 | Iustin Pop | in (pri_inst, sec_inst) |
124 | eaa64cd8 | Iustin Pop | |
125 | da45c352 | Iustin Pop | -- | Computes the role of a node. |
126 | da45c352 | Iustin Pop | getNodeRole :: ConfigData -> Node -> NodeRole |
127 | da45c352 | Iustin Pop | getNodeRole cfg node |
128 | dfcebee3 | Klaus Aehlig | | nodeUuid node == clusterMasterNode (configCluster cfg) = NRMaster |
129 | da45c352 | Iustin Pop | | nodeMasterCandidate node = NRCandidate |
130 | da45c352 | Iustin Pop | | nodeDrained node = NRDrained |
131 | da45c352 | Iustin Pop | | nodeOffline node = NROffline |
132 | da45c352 | Iustin Pop | | otherwise = NRRegular |
133 | da45c352 | Iustin Pop | |
134 | f5a67757 | Klaus Aehlig | -- | Get the list of master candidates. |
135 | f5a67757 | Klaus Aehlig | getMasterCandidates :: ConfigData -> [Node] |
136 | f5a67757 | Klaus Aehlig | getMasterCandidates cfg = |
137 | f5a67757 | Klaus Aehlig | filter ((==) NRCandidate . getNodeRole cfg) |
138 | f5a67757 | Klaus Aehlig | (map snd . M.toList . fromContainer . configNodes $ cfg) |
139 | f5a67757 | Klaus Aehlig | |
140 | eaa64cd8 | Iustin Pop | -- | Returns the default cluster link. |
141 | eaa64cd8 | Iustin Pop | getDefaultNicLink :: ConfigData -> String |
142 | eaa64cd8 | Iustin Pop | getDefaultNicLink = |
143 | 84835174 | Iustin Pop | nicpLink . (M.! C.ppDefault) . fromContainer . |
144 | 84835174 | Iustin Pop | clusterNicparams . configCluster |
145 | eaa64cd8 | Iustin Pop | |
146 | 0ec87781 | Iustin Pop | -- | Returns the default cluster hypervisor. |
147 | 0ec87781 | Iustin Pop | getDefaultHypervisor :: ConfigData -> Hypervisor |
148 | 0ec87781 | Iustin Pop | getDefaultHypervisor cfg = |
149 | 0ec87781 | Iustin Pop | case clusterEnabledHypervisors $ configCluster cfg of |
150 | 0ec87781 | Iustin Pop | -- FIXME: this case shouldn't happen (configuration broken), but |
151 | 0ec87781 | Iustin Pop | -- for now we handle it here because we're not authoritative for |
152 | 0ec87781 | Iustin Pop | -- the config |
153 | 0ec87781 | Iustin Pop | [] -> XenPvm |
154 | 0ec87781 | Iustin Pop | x:_ -> x |
155 | 0ec87781 | Iustin Pop | |
156 | eaa64cd8 | Iustin Pop | -- | Returns instances of a given link. |
157 | eaa64cd8 | Iustin Pop | getInstancesIpByLink :: LinkIpMap -> String -> [String] |
158 | eaa64cd8 | Iustin Pop | getInstancesIpByLink linkipmap link = |
159 | eaa64cd8 | Iustin Pop | M.keys $ M.findWithDefault M.empty link linkipmap |
160 | eaa64cd8 | Iustin Pop | |
161 | 0fc8e521 | Iustin Pop | -- | Generic lookup function that converts from a possible abbreviated |
162 | 0fc8e521 | Iustin Pop | -- name to a full name. |
163 | 5183e8be | Iustin Pop | getItem :: String -> String -> M.Map String a -> ErrorResult a |
164 | 0fc8e521 | Iustin Pop | getItem kind name allitems = do |
165 | 0fc8e521 | Iustin Pop | let lresult = lookupName (M.keys allitems) name |
166 | 5183e8be | Iustin Pop | err msg = Bad $ OpPrereqError (kind ++ " name " ++ name ++ " " ++ msg) |
167 | 5183e8be | Iustin Pop | ECodeNoEnt |
168 | 0fc8e521 | Iustin Pop | fullname <- case lrMatchPriority lresult of |
169 | 0fc8e521 | Iustin Pop | PartialMatch -> Ok $ lrContent lresult |
170 | 0fc8e521 | Iustin Pop | ExactMatch -> Ok $ lrContent lresult |
171 | 0fc8e521 | Iustin Pop | MultipleMatch -> err "has multiple matches" |
172 | 0fc8e521 | Iustin Pop | FailMatch -> err "not found" |
173 | 0fc8e521 | Iustin Pop | maybe (err "not found after successfull match?!") Ok $ |
174 | 0fc8e521 | Iustin Pop | M.lookup fullname allitems |
175 | 0fc8e521 | Iustin Pop | |
176 | 1c3231aa | Thomas Thrainer | -- | Looks up a node by name or uuid. |
177 | 5183e8be | Iustin Pop | getNode :: ConfigData -> String -> ErrorResult Node |
178 | 1c3231aa | Thomas Thrainer | getNode cfg name = |
179 | 1c3231aa | Thomas Thrainer | let nodes = fromContainer (configNodes cfg) |
180 | 1c3231aa | Thomas Thrainer | in case getItem "Node" name nodes of |
181 | 1c3231aa | Thomas Thrainer | -- if not found by uuid, we need to look it up by name |
182 | 1c3231aa | Thomas Thrainer | Ok node -> Ok node |
183 | 1c3231aa | Thomas Thrainer | Bad _ -> let by_name = M.mapKeys |
184 | 1c3231aa | Thomas Thrainer | (nodeName . (M.!) nodes) nodes |
185 | 1c3231aa | Thomas Thrainer | in getItem "Node" name by_name |
186 | eaa64cd8 | Iustin Pop | |
187 | da4a52a3 | Thomas Thrainer | -- | Looks up an instance by name or uuid. |
188 | 5183e8be | Iustin Pop | getInstance :: ConfigData -> String -> ErrorResult Instance |
189 | 84835174 | Iustin Pop | getInstance cfg name = |
190 | da4a52a3 | Thomas Thrainer | let instances = fromContainer (configInstances cfg) |
191 | da4a52a3 | Thomas Thrainer | in case getItem "Instance" name instances of |
192 | da4a52a3 | Thomas Thrainer | -- if not found by uuid, we need to look it up by name |
193 | da4a52a3 | Thomas Thrainer | Ok inst -> Ok inst |
194 | da4a52a3 | Thomas Thrainer | Bad _ -> let by_name = M.mapKeys |
195 | da4a52a3 | Thomas Thrainer | (instName . (M.!) instances) instances |
196 | da4a52a3 | Thomas Thrainer | in getItem "Instance" name by_name |
197 | eaa64cd8 | Iustin Pop | |
198 | da4a52a3 | Thomas Thrainer | -- | Looks up a node group by name or uuid. |
199 | 5183e8be | Iustin Pop | getGroup :: ConfigData -> String -> ErrorResult NodeGroup |
200 | 4cd428db | Iustin Pop | getGroup cfg name = |
201 | 4cd428db | Iustin Pop | let groups = fromContainer (configNodegroups cfg) |
202 | 4cd428db | Iustin Pop | in case getItem "NodeGroup" name groups of |
203 | 4cd428db | Iustin Pop | -- if not found by uuid, we need to look it up by name, slow |
204 | 4cd428db | Iustin Pop | Ok grp -> Ok grp |
205 | 4cd428db | Iustin Pop | Bad _ -> let by_name = M.mapKeys |
206 | 5b11f8db | Iustin Pop | (groupName . (M.!) groups) groups |
207 | 4cd428db | Iustin Pop | in getItem "NodeGroup" name by_name |
208 | 4cd428db | Iustin Pop | |
209 | da45c352 | Iustin Pop | -- | Computes a node group's node params. |
210 | da45c352 | Iustin Pop | getGroupNdParams :: ConfigData -> NodeGroup -> FilledNDParams |
211 | da45c352 | Iustin Pop | getGroupNdParams cfg ng = |
212 | da45c352 | Iustin Pop | fillNDParams (clusterNdparams $ configCluster cfg) (groupNdparams ng) |
213 | da45c352 | Iustin Pop | |
214 | e5cb098c | Agata Murawska | -- | Computes a node group's ipolicy. |
215 | e5cb098c | Agata Murawska | getGroupIpolicy :: ConfigData -> NodeGroup -> FilledIPolicy |
216 | e5cb098c | Agata Murawska | getGroupIpolicy cfg ng = |
217 | e5cb098c | Agata Murawska | fillIPolicy (clusterIpolicy $ configCluster cfg) (groupIpolicy ng) |
218 | e5cb098c | Agata Murawska | |
219 | 90d033ef | Iustin Pop | -- | Computes a group\'s (merged) disk params. |
220 | 90d033ef | Iustin Pop | getGroupDiskParams :: ConfigData -> NodeGroup -> DiskParams |
221 | 90d033ef | Iustin Pop | getGroupDiskParams cfg ng = |
222 | edc1acde | Iustin Pop | GenericContainer $ |
223 | 90d033ef | Iustin Pop | fillDict (fromContainer . clusterDiskparams $ configCluster cfg) |
224 | 90d033ef | Iustin Pop | (fromContainer $ groupDiskparams ng) [] |
225 | 90d033ef | Iustin Pop | |
226 | e5cb098c | Agata Murawska | -- | Get nodes of a given node group. |
227 | e5cb098c | Agata Murawska | getGroupNodes :: ConfigData -> String -> [Node] |
228 | e5cb098c | Agata Murawska | getGroupNodes cfg gname = |
229 | e5cb098c | Agata Murawska | let all_nodes = M.elems . fromContainer . configNodes $ cfg in |
230 | e5cb098c | Agata Murawska | filter ((==gname) . nodeGroup) all_nodes |
231 | e5cb098c | Agata Murawska | |
232 | e5cb098c | Agata Murawska | -- | Get (primary, secondary) instances of a given node group. |
233 | e5cb098c | Agata Murawska | getGroupInstances :: ConfigData -> String -> ([Instance], [Instance]) |
234 | e5cb098c | Agata Murawska | getGroupInstances cfg gname = |
235 | da4a52a3 | Thomas Thrainer | let gnodes = map nodeUuid (getGroupNodes cfg gname) |
236 | e5cb098c | Agata Murawska | ginsts = map (getNodeInstances cfg) gnodes in |
237 | e5cb098c | Agata Murawska | (concatMap fst ginsts, concatMap snd ginsts) |
238 | e5cb098c | Agata Murawska | |
239 | 05092772 | Helga Velroyen | -- | Looks up a network. If looking up by uuid fails, we look up |
240 | 05092772 | Helga Velroyen | -- by name. |
241 | 05092772 | Helga Velroyen | getNetwork :: ConfigData -> String -> ErrorResult Network |
242 | 05092772 | Helga Velroyen | getNetwork cfg name = |
243 | 05092772 | Helga Velroyen | let networks = fromContainer (configNetworks cfg) |
244 | 05092772 | Helga Velroyen | in case getItem "Network" name networks of |
245 | 05092772 | Helga Velroyen | Ok net -> Ok net |
246 | 05092772 | Helga Velroyen | Bad _ -> let by_name = M.mapKeys |
247 | 05092772 | Helga Velroyen | (fromNonEmpty . networkName . (M.!) networks) |
248 | 05092772 | Helga Velroyen | networks |
249 | 05092772 | Helga Velroyen | in getItem "Network" name by_name |
250 | 05092772 | Helga Velroyen | |
251 | 4e6f1cde | Hrvoje Ribicic | -- | Retrieves the instance hypervisor params, missing values filled with |
252 | 4e6f1cde | Hrvoje Ribicic | -- cluster defaults. |
253 | b9666288 | Hrvoje Ribicic | getFilledInstHvParams :: [String] -> ConfigData -> Instance -> HvParams |
254 | b9666288 | Hrvoje Ribicic | getFilledInstHvParams globals cfg inst = |
255 | 4e6f1cde | Hrvoje Ribicic | -- First get the defaults of the parent |
256 | 4e6f1cde | Hrvoje Ribicic | let hvName = hypervisorToRaw . instHypervisor $ inst |
257 | 4e6f1cde | Hrvoje Ribicic | hvParamMap = fromContainer . clusterHvparams $ configCluster cfg |
258 | 4e6f1cde | Hrvoje Ribicic | parentHvParams = maybe M.empty fromContainer $ M.lookup hvName hvParamMap |
259 | 4e6f1cde | Hrvoje Ribicic | -- Then the os defaults for the given hypervisor |
260 | 4e6f1cde | Hrvoje Ribicic | osName = instOs inst |
261 | 4e6f1cde | Hrvoje Ribicic | osParamMap = fromContainer . clusterOsHvp $ configCluster cfg |
262 | 4e6f1cde | Hrvoje Ribicic | osHvParamMap = maybe M.empty fromContainer $ M.lookup osName osParamMap |
263 | 4e6f1cde | Hrvoje Ribicic | osHvParams = maybe M.empty fromContainer $ M.lookup hvName osHvParamMap |
264 | 4e6f1cde | Hrvoje Ribicic | -- Then the child |
265 | 4e6f1cde | Hrvoje Ribicic | childHvParams = fromContainer . instHvparams $ inst |
266 | 4e6f1cde | Hrvoje Ribicic | -- Helper function |
267 | b9666288 | Hrvoje Ribicic | fillFn con val = fillDict con val globals |
268 | 4e6f1cde | Hrvoje Ribicic | in GenericContainer $ fillFn (fillFn parentHvParams osHvParams) childHvParams |
269 | 4e6f1cde | Hrvoje Ribicic | |
270 | 4e6f1cde | Hrvoje Ribicic | -- | Retrieves the instance backend params, missing values filled with cluster |
271 | 4e6f1cde | Hrvoje Ribicic | -- defaults. |
272 | 4e6f1cde | Hrvoje Ribicic | getFilledInstBeParams :: ConfigData -> Instance -> ErrorResult FilledBeParams |
273 | 4e6f1cde | Hrvoje Ribicic | getFilledInstBeParams cfg inst = do |
274 | 4e6f1cde | Hrvoje Ribicic | let beParamMap = fromContainer . clusterBeparams . configCluster $ cfg |
275 | 4e6f1cde | Hrvoje Ribicic | parentParams <- getItem "FilledBeParams" C.ppDefault beParamMap |
276 | 4e6f1cde | Hrvoje Ribicic | return $ fillBeParams parentParams (instBeparams inst) |
277 | 4e6f1cde | Hrvoje Ribicic | |
278 | 4e6f1cde | Hrvoje Ribicic | -- | Retrieves the instance os params, missing values filled with cluster |
279 | a5efec93 | Santi Raffa | -- defaults. This does NOT include private and secret parameters. |
280 | 4e6f1cde | Hrvoje Ribicic | getFilledInstOsParams :: ConfigData -> Instance -> OsParams |
281 | 4e6f1cde | Hrvoje Ribicic | getFilledInstOsParams cfg inst = |
282 | 4e6f1cde | Hrvoje Ribicic | let osLookupName = takeWhile (/= '+') (instOs inst) |
283 | 4e6f1cde | Hrvoje Ribicic | osParamMap = fromContainer . clusterOsparams $ configCluster cfg |
284 | 4e6f1cde | Hrvoje Ribicic | childOsParams = instOsparams inst |
285 | 4e6f1cde | Hrvoje Ribicic | in case getItem "OsParams" osLookupName osParamMap of |
286 | 4e6f1cde | Hrvoje Ribicic | Ok parentOsParams -> GenericContainer $ |
287 | 4e6f1cde | Hrvoje Ribicic | fillDict (fromContainer parentOsParams) |
288 | 4e6f1cde | Hrvoje Ribicic | (fromContainer childOsParams) [] |
289 | 4e6f1cde | Hrvoje Ribicic | Bad _ -> childOsParams |
290 | 4e6f1cde | Hrvoje Ribicic | |
291 | eaa64cd8 | Iustin Pop | -- | Looks up an instance's primary node. |
292 | 5183e8be | Iustin Pop | getInstPrimaryNode :: ConfigData -> String -> ErrorResult Node |
293 | eaa64cd8 | Iustin Pop | getInstPrimaryNode cfg name = |
294 | 2cdaf225 | Iustin Pop | liftM instPrimaryNode (getInstance cfg name) >>= getNode cfg |
295 | eaa64cd8 | Iustin Pop | |
296 | 9491766c | Hrvoje Ribicic | -- | Retrieves all nodes hosting a DRBD disk |
297 | 9491766c | Hrvoje Ribicic | getDrbdDiskNodes :: ConfigData -> Disk -> [Node] |
298 | 9491766c | Hrvoje Ribicic | getDrbdDiskNodes cfg disk = |
299 | 9491766c | Hrvoje Ribicic | let retrieved = case diskLogicalId disk of |
300 | 9491766c | Hrvoje Ribicic | LIDDrbd8 nodeA nodeB _ _ _ _ -> |
301 | 9491766c | Hrvoje Ribicic | justOk [getNode cfg nodeA, getNode cfg nodeB] |
302 | 9491766c | Hrvoje Ribicic | _ -> [] |
303 | 9491766c | Hrvoje Ribicic | in retrieved ++ concatMap (getDrbdDiskNodes cfg) (diskChildren disk) |
304 | 9491766c | Hrvoje Ribicic | |
305 | 9491766c | Hrvoje Ribicic | -- | Retrieves all the nodes of the instance. |
306 | 9491766c | Hrvoje Ribicic | -- |
307 | 9491766c | Hrvoje Ribicic | -- As instances not using DRBD can be sent as a parameter as well, |
308 | 9491766c | Hrvoje Ribicic | -- the primary node has to be appended to the results. |
309 | 9491766c | Hrvoje Ribicic | getInstAllNodes :: ConfigData -> String -> ErrorResult [Node] |
310 | 9491766c | Hrvoje Ribicic | getInstAllNodes cfg name = do |
311 | 9491766c | Hrvoje Ribicic | inst <- getInstance cfg name |
312 | 9491766c | Hrvoje Ribicic | let diskNodes = concatMap (getDrbdDiskNodes cfg) $ instDisks inst |
313 | 9491766c | Hrvoje Ribicic | pNode <- getInstPrimaryNode cfg name |
314 | 9491766c | Hrvoje Ribicic | return . nub $ pNode:diskNodes |
315 | 9491766c | Hrvoje Ribicic | |
316 | d81ec8b7 | Iustin Pop | -- | Filters DRBD minors for a given node. |
317 | d81ec8b7 | Iustin Pop | getDrbdMinorsForNode :: String -> Disk -> [(Int, String)] |
318 | d81ec8b7 | Iustin Pop | getDrbdMinorsForNode node disk = |
319 | d81ec8b7 | Iustin Pop | let child_minors = concatMap (getDrbdMinorsForNode node) (diskChildren disk) |
320 | d81ec8b7 | Iustin Pop | this_minors = |
321 | d81ec8b7 | Iustin Pop | case diskLogicalId disk of |
322 | d81ec8b7 | Iustin Pop | LIDDrbd8 nodeA nodeB _ minorA minorB _ |
323 | d81ec8b7 | Iustin Pop | | nodeA == node -> [(minorA, nodeB)] |
324 | d81ec8b7 | Iustin Pop | | nodeB == node -> [(minorB, nodeA)] |
325 | d81ec8b7 | Iustin Pop | _ -> [] |
326 | d81ec8b7 | Iustin Pop | in this_minors ++ child_minors |
327 | d81ec8b7 | Iustin Pop | |
328 | d81ec8b7 | Iustin Pop | -- | String for primary role. |
329 | d81ec8b7 | Iustin Pop | rolePrimary :: String |
330 | d81ec8b7 | Iustin Pop | rolePrimary = "primary" |
331 | d81ec8b7 | Iustin Pop | |
332 | d81ec8b7 | Iustin Pop | -- | String for secondary role. |
333 | d81ec8b7 | Iustin Pop | roleSecondary :: String |
334 | d81ec8b7 | Iustin Pop | roleSecondary = "secondary" |
335 | d81ec8b7 | Iustin Pop | |
336 | d81ec8b7 | Iustin Pop | -- | Gets the list of DRBD minors for an instance that are related to |
337 | d81ec8b7 | Iustin Pop | -- a given node. |
338 | d81ec8b7 | Iustin Pop | getInstMinorsForNode :: String -> Instance |
339 | d81ec8b7 | Iustin Pop | -> [(String, Int, String, String, String, String)] |
340 | d81ec8b7 | Iustin Pop | getInstMinorsForNode node inst = |
341 | d81ec8b7 | Iustin Pop | let role = if node == instPrimaryNode inst |
342 | d81ec8b7 | Iustin Pop | then rolePrimary |
343 | d81ec8b7 | Iustin Pop | else roleSecondary |
344 | d81ec8b7 | Iustin Pop | iname = instName inst |
345 | d81ec8b7 | Iustin Pop | -- FIXME: the disk/ build there is hack-ish; unify this in a |
346 | d81ec8b7 | Iustin Pop | -- separate place, or reuse the iv_name (but that is deprecated on |
347 | d81ec8b7 | Iustin Pop | -- the Python side) |
348 | d81ec8b7 | Iustin Pop | in concatMap (\(idx, dsk) -> |
349 | d81ec8b7 | Iustin Pop | [(node, minor, iname, "disk/" ++ show idx, role, peer) |
350 | d81ec8b7 | Iustin Pop | | (minor, peer) <- getDrbdMinorsForNode node dsk]) . |
351 | d81ec8b7 | Iustin Pop | zip [(0::Int)..] . instDisks $ inst |
352 | d81ec8b7 | Iustin Pop | |
353 | eaa64cd8 | Iustin Pop | -- | Builds link -> ip -> instname map. |
354 | eaa64cd8 | Iustin Pop | -- |
355 | eaa64cd8 | Iustin Pop | -- TODO: improve this by splitting it into multiple independent functions: |
356 | eaa64cd8 | Iustin Pop | -- |
357 | eaa64cd8 | Iustin Pop | -- * abstract the \"fetch instance with filled params\" functionality |
358 | eaa64cd8 | Iustin Pop | -- |
359 | eaa64cd8 | Iustin Pop | -- * abstsract the [instance] -> [(nic, instance_name)] part |
360 | eaa64cd8 | Iustin Pop | -- |
361 | eaa64cd8 | Iustin Pop | -- * etc. |
362 | eaa64cd8 | Iustin Pop | buildLinkIpInstnameMap :: ConfigData -> LinkIpMap |
363 | eaa64cd8 | Iustin Pop | buildLinkIpInstnameMap cfg = |
364 | eaa64cd8 | Iustin Pop | let cluster = configCluster cfg |
365 | 84835174 | Iustin Pop | instances = M.elems . fromContainer . configInstances $ cfg |
366 | 84835174 | Iustin Pop | defparams = (M.!) (fromContainer $ clusterNicparams cluster) C.ppDefault |
367 | eaa64cd8 | Iustin Pop | nics = concatMap (\i -> [(instName i, nic) | nic <- instNics i]) |
368 | eaa64cd8 | Iustin Pop | instances |
369 | eaa64cd8 | Iustin Pop | in foldl' (\accum (iname, nic) -> |
370 | eaa64cd8 | Iustin Pop | let pparams = nicNicparams nic |
371 | b09cce64 | Iustin Pop | fparams = fillNicParams defparams pparams |
372 | eaa64cd8 | Iustin Pop | link = nicpLink fparams |
373 | eaa64cd8 | Iustin Pop | in case nicIp nic of |
374 | eaa64cd8 | Iustin Pop | Nothing -> accum |
375 | 5b11f8db | Iustin Pop | Just ip -> let oldipmap = M.findWithDefault M.empty |
376 | eaa64cd8 | Iustin Pop | link accum |
377 | eaa64cd8 | Iustin Pop | newipmap = M.insert ip iname oldipmap |
378 | eaa64cd8 | Iustin Pop | in M.insert link newipmap accum |
379 | eaa64cd8 | Iustin Pop | ) M.empty nics |
380 | da45c352 | Iustin Pop | |
381 | da45c352 | Iustin Pop | |
382 | da45c352 | Iustin Pop | -- | Returns a node's group, with optional failure if we can't find it |
383 | da45c352 | Iustin Pop | -- (configuration corrupt). |
384 | da45c352 | Iustin Pop | getGroupOfNode :: ConfigData -> Node -> Maybe NodeGroup |
385 | da45c352 | Iustin Pop | getGroupOfNode cfg node = |
386 | da45c352 | Iustin Pop | M.lookup (nodeGroup node) (fromContainer . configNodegroups $ cfg) |
387 | da45c352 | Iustin Pop | |
388 | da45c352 | Iustin Pop | -- | Returns a node's ndparams, filled. |
389 | da45c352 | Iustin Pop | getNodeNdParams :: ConfigData -> Node -> Maybe FilledNDParams |
390 | da45c352 | Iustin Pop | getNodeNdParams cfg node = do |
391 | da45c352 | Iustin Pop | group <- getGroupOfNode cfg node |
392 | da45c352 | Iustin Pop | let gparams = getGroupNdParams cfg group |
393 | da45c352 | Iustin Pop | return $ fillNDParams gparams (nodeNdparams node) |
394 | da45c352 | Iustin Pop | |
395 | da45c352 | Iustin Pop | instance NdParamObject Node where |
396 | da45c352 | Iustin Pop | getNdParamsOf = getNodeNdParams |
397 | da45c352 | Iustin Pop | |
398 | da45c352 | Iustin Pop | instance NdParamObject NodeGroup where |
399 | da45c352 | Iustin Pop | getNdParamsOf cfg = Just . getGroupNdParams cfg |
400 | da45c352 | Iustin Pop | |
401 | da45c352 | Iustin Pop | instance NdParamObject Cluster where |
402 | da45c352 | Iustin Pop | getNdParamsOf _ = Just . clusterNdparams |