root / src / Ganeti / Types.hs @ a5450d2a
History | View | Annotate | Download (25.2 kB)
1 |
{-# LANGUAGE TemplateHaskell #-} |
---|---|
2 |
|
3 |
{-| Some common Ganeti types. |
4 |
|
5 |
This holds types common to both core work, and to htools. Types that |
6 |
are very core specific (e.g. configuration objects) should go in |
7 |
'Ganeti.Objects', while types that are specific to htools in-memory |
8 |
representation should go into 'Ganeti.HTools.Types'. |
9 |
|
10 |
-} |
11 |
|
12 |
{- |
13 |
|
14 |
Copyright (C) 2012, 2013 Google Inc. |
15 |
|
16 |
This program is free software; you can redistribute it and/or modify |
17 |
it under the terms of the GNU General Public License as published by |
18 |
the Free Software Foundation; either version 2 of the License, or |
19 |
(at your option) any later version. |
20 |
|
21 |
This program is distributed in the hope that it will be useful, but |
22 |
WITHOUT ANY WARRANTY; without even the implied warranty of |
23 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
24 |
General Public License for more details. |
25 |
|
26 |
You should have received a copy of the GNU General Public License |
27 |
along with this program; if not, write to the Free Software |
28 |
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
29 |
02110-1301, USA. |
30 |
|
31 |
-} |
32 |
|
33 |
module Ganeti.Types |
34 |
( AllocPolicy(..) |
35 |
, allocPolicyFromRaw |
36 |
, allocPolicyToRaw |
37 |
, InstanceStatus(..) |
38 |
, instanceStatusFromRaw |
39 |
, instanceStatusToRaw |
40 |
, DiskTemplate(..) |
41 |
, diskTemplateToRaw |
42 |
, diskTemplateFromRaw |
43 |
, TagKind(..) |
44 |
, tagKindToRaw |
45 |
, tagKindFromRaw |
46 |
, NonNegative |
47 |
, fromNonNegative |
48 |
, mkNonNegative |
49 |
, Positive |
50 |
, fromPositive |
51 |
, mkPositive |
52 |
, Negative |
53 |
, fromNegative |
54 |
, mkNegative |
55 |
, NonEmpty |
56 |
, fromNonEmpty |
57 |
, mkNonEmpty |
58 |
, NonEmptyString |
59 |
, QueryResultCode |
60 |
, IPv4Address |
61 |
, mkIPv4Address |
62 |
, IPv4Network |
63 |
, mkIPv4Network |
64 |
, IPv6Address |
65 |
, mkIPv6Address |
66 |
, IPv6Network |
67 |
, mkIPv6Network |
68 |
, MigrationMode(..) |
69 |
, migrationModeToRaw |
70 |
, VerifyOptionalChecks(..) |
71 |
, verifyOptionalChecksToRaw |
72 |
, DdmSimple(..) |
73 |
, DdmFull(..) |
74 |
, ddmFullToRaw |
75 |
, CVErrorCode(..) |
76 |
, cVErrorCodeToRaw |
77 |
, Hypervisor(..) |
78 |
, hypervisorToRaw |
79 |
, OobCommand(..) |
80 |
, oobCommandToRaw |
81 |
, OobStatus(..) |
82 |
, oobStatusToRaw |
83 |
, StorageType(..) |
84 |
, storageTypeToRaw |
85 |
, EvacMode(..) |
86 |
, evacModeToRaw |
87 |
, FileDriver(..) |
88 |
, fileDriverToRaw |
89 |
, InstCreateMode(..) |
90 |
, instCreateModeToRaw |
91 |
, RebootType(..) |
92 |
, rebootTypeToRaw |
93 |
, ExportMode(..) |
94 |
, exportModeToRaw |
95 |
, IAllocatorTestDir(..) |
96 |
, iAllocatorTestDirToRaw |
97 |
, IAllocatorMode(..) |
98 |
, iAllocatorModeToRaw |
99 |
, NICMode(..) |
100 |
, nICModeToRaw |
101 |
, JobStatus(..) |
102 |
, jobStatusToRaw |
103 |
, jobStatusFromRaw |
104 |
, FinalizedJobStatus(..) |
105 |
, finalizedJobStatusToRaw |
106 |
, JobId |
107 |
, fromJobId |
108 |
, makeJobId |
109 |
, makeJobIdS |
110 |
, RelativeJobId |
111 |
, JobIdDep(..) |
112 |
, JobDependency(..) |
113 |
, OpSubmitPriority(..) |
114 |
, opSubmitPriorityToRaw |
115 |
, parseSubmitPriority |
116 |
, fmtSubmitPriority |
117 |
, OpStatus(..) |
118 |
, opStatusToRaw |
119 |
, opStatusFromRaw |
120 |
, ELogType(..) |
121 |
, eLogTypeToRaw |
122 |
, ReasonElem |
123 |
, ReasonTrail |
124 |
, StorageUnit(..) |
125 |
, StorageUnitRaw(..) |
126 |
, StorageKey |
127 |
, addParamsToStorageUnit |
128 |
, diskTemplateToStorageType |
129 |
, VType(..) |
130 |
, vTypeFromRaw |
131 |
, vTypeToRaw |
132 |
, NodeRole(..) |
133 |
, nodeRoleToRaw |
134 |
, roleDescription |
135 |
, DiskMode(..) |
136 |
, diskModeToRaw |
137 |
, BlockDriver(..) |
138 |
, blockDriverToRaw |
139 |
, AdminState(..) |
140 |
, adminStateFromRaw |
141 |
, adminStateToRaw |
142 |
, StorageField(..) |
143 |
, storageFieldToRaw |
144 |
, DiskAccessMode(..) |
145 |
, diskAccessModeToRaw |
146 |
, ReplaceDisksMode(..) |
147 |
, replaceDisksModeToRaw |
148 |
) where |
149 |
|
150 |
import Control.Monad (liftM) |
151 |
import qualified Text.JSON as JSON |
152 |
import Text.JSON (JSON, readJSON, showJSON) |
153 |
import Data.Ratio (numerator, denominator) |
154 |
|
155 |
import qualified Ganeti.ConstantUtils as ConstantUtils |
156 |
import Ganeti.JSON |
157 |
import qualified Ganeti.THH as THH |
158 |
import Ganeti.Utils |
159 |
|
160 |
-- * Generic types |
161 |
|
162 |
-- | Type that holds a non-negative value. |
163 |
newtype NonNegative a = NonNegative { fromNonNegative :: a } |
164 |
deriving (Show, Eq) |
165 |
|
166 |
-- | Smart constructor for 'NonNegative'. |
167 |
mkNonNegative :: (Monad m, Num a, Ord a, Show a) => a -> m (NonNegative a) |
168 |
mkNonNegative i | i >= 0 = return (NonNegative i) |
169 |
| otherwise = fail $ "Invalid value for non-negative type '" ++ |
170 |
show i ++ "'" |
171 |
|
172 |
instance (JSON.JSON a, Num a, Ord a, Show a) => JSON.JSON (NonNegative a) where |
173 |
showJSON = JSON.showJSON . fromNonNegative |
174 |
readJSON v = JSON.readJSON v >>= mkNonNegative |
175 |
|
176 |
-- | Type that holds a positive value. |
177 |
newtype Positive a = Positive { fromPositive :: a } |
178 |
deriving (Show, Eq) |
179 |
|
180 |
-- | Smart constructor for 'Positive'. |
181 |
mkPositive :: (Monad m, Num a, Ord a, Show a) => a -> m (Positive a) |
182 |
mkPositive i | i > 0 = return (Positive i) |
183 |
| otherwise = fail $ "Invalid value for positive type '" ++ |
184 |
show i ++ "'" |
185 |
|
186 |
instance (JSON.JSON a, Num a, Ord a, Show a) => JSON.JSON (Positive a) where |
187 |
showJSON = JSON.showJSON . fromPositive |
188 |
readJSON v = JSON.readJSON v >>= mkPositive |
189 |
|
190 |
-- | Type that holds a negative value. |
191 |
newtype Negative a = Negative { fromNegative :: a } |
192 |
deriving (Show, Eq) |
193 |
|
194 |
-- | Smart constructor for 'Negative'. |
195 |
mkNegative :: (Monad m, Num a, Ord a, Show a) => a -> m (Negative a) |
196 |
mkNegative i | i < 0 = return (Negative i) |
197 |
| otherwise = fail $ "Invalid value for negative type '" ++ |
198 |
show i ++ "'" |
199 |
|
200 |
instance (JSON.JSON a, Num a, Ord a, Show a) => JSON.JSON (Negative a) where |
201 |
showJSON = JSON.showJSON . fromNegative |
202 |
readJSON v = JSON.readJSON v >>= mkNegative |
203 |
|
204 |
-- | Type that holds a non-null list. |
205 |
newtype NonEmpty a = NonEmpty { fromNonEmpty :: [a] } |
206 |
deriving (Show, Eq) |
207 |
|
208 |
-- | Smart constructor for 'NonEmpty'. |
209 |
mkNonEmpty :: (Monad m) => [a] -> m (NonEmpty a) |
210 |
mkNonEmpty [] = fail "Received empty value for non-empty list" |
211 |
mkNonEmpty xs = return (NonEmpty xs) |
212 |
|
213 |
instance (Eq a, Ord a) => Ord (NonEmpty a) where |
214 |
NonEmpty { fromNonEmpty = x1 } `compare` NonEmpty { fromNonEmpty = x2 } = |
215 |
x1 `compare` x2 |
216 |
|
217 |
instance (JSON.JSON a) => JSON.JSON (NonEmpty a) where |
218 |
showJSON = JSON.showJSON . fromNonEmpty |
219 |
readJSON v = JSON.readJSON v >>= mkNonEmpty |
220 |
|
221 |
-- | A simple type alias for non-empty strings. |
222 |
type NonEmptyString = NonEmpty Char |
223 |
|
224 |
type QueryResultCode = Int |
225 |
|
226 |
newtype IPv4Address = IPv4Address { fromIPv4Address :: String } |
227 |
deriving (Show, Eq) |
228 |
|
229 |
-- FIXME: this should check that 'address' is a valid ip |
230 |
mkIPv4Address :: Monad m => String -> m IPv4Address |
231 |
mkIPv4Address address = |
232 |
return IPv4Address { fromIPv4Address = address } |
233 |
|
234 |
instance JSON.JSON IPv4Address where |
235 |
showJSON = JSON.showJSON . fromIPv4Address |
236 |
readJSON v = JSON.readJSON v >>= mkIPv4Address |
237 |
|
238 |
newtype IPv4Network = IPv4Network { fromIPv4Network :: String } |
239 |
deriving (Show, Eq) |
240 |
|
241 |
-- FIXME: this should check that 'address' is a valid ip |
242 |
mkIPv4Network :: Monad m => String -> m IPv4Network |
243 |
mkIPv4Network address = |
244 |
return IPv4Network { fromIPv4Network = address } |
245 |
|
246 |
instance JSON.JSON IPv4Network where |
247 |
showJSON = JSON.showJSON . fromIPv4Network |
248 |
readJSON v = JSON.readJSON v >>= mkIPv4Network |
249 |
|
250 |
newtype IPv6Address = IPv6Address { fromIPv6Address :: String } |
251 |
deriving (Show, Eq) |
252 |
|
253 |
-- FIXME: this should check that 'address' is a valid ip |
254 |
mkIPv6Address :: Monad m => String -> m IPv6Address |
255 |
mkIPv6Address address = |
256 |
return IPv6Address { fromIPv6Address = address } |
257 |
|
258 |
instance JSON.JSON IPv6Address where |
259 |
showJSON = JSON.showJSON . fromIPv6Address |
260 |
readJSON v = JSON.readJSON v >>= mkIPv6Address |
261 |
|
262 |
newtype IPv6Network = IPv6Network { fromIPv6Network :: String } |
263 |
deriving (Show, Eq) |
264 |
|
265 |
-- FIXME: this should check that 'address' is a valid ip |
266 |
mkIPv6Network :: Monad m => String -> m IPv6Network |
267 |
mkIPv6Network address = |
268 |
return IPv6Network { fromIPv6Network = address } |
269 |
|
270 |
instance JSON.JSON IPv6Network where |
271 |
showJSON = JSON.showJSON . fromIPv6Network |
272 |
readJSON v = JSON.readJSON v >>= mkIPv6Network |
273 |
|
274 |
-- * Ganeti types |
275 |
|
276 |
-- | Instance disk template type. |
277 |
$(THH.declareLADT ''String "DiskTemplate" |
278 |
[ ("DTDiskless", "diskless") |
279 |
, ("DTFile", "file") |
280 |
, ("DTSharedFile", "sharedfile") |
281 |
, ("DTPlain", "plain") |
282 |
, ("DTBlock", "blockdev") |
283 |
, ("DTDrbd8", "drbd") |
284 |
, ("DTRbd", "rbd") |
285 |
, ("DTExt", "ext") |
286 |
]) |
287 |
$(THH.makeJSONInstance ''DiskTemplate) |
288 |
|
289 |
instance THH.PyValue DiskTemplate where |
290 |
showValue = show . diskTemplateToRaw |
291 |
|
292 |
instance HasStringRepr DiskTemplate where |
293 |
fromStringRepr = diskTemplateFromRaw |
294 |
toStringRepr = diskTemplateToRaw |
295 |
|
296 |
-- | Data type representing what items the tag operations apply to. |
297 |
$(THH.declareLADT ''String "TagKind" |
298 |
[ ("TagKindInstance", "instance") |
299 |
, ("TagKindNode", "node") |
300 |
, ("TagKindGroup", "nodegroup") |
301 |
, ("TagKindCluster", "cluster") |
302 |
, ("TagKindNetwork", "network") |
303 |
]) |
304 |
$(THH.makeJSONInstance ''TagKind) |
305 |
|
306 |
-- | The Group allocation policy type. |
307 |
-- |
308 |
-- Note that the order of constructors is important as the automatic |
309 |
-- Ord instance will order them in the order they are defined, so when |
310 |
-- changing this data type be careful about the interaction with the |
311 |
-- desired sorting order. |
312 |
$(THH.declareLADT ''String "AllocPolicy" |
313 |
[ ("AllocPreferred", "preferred") |
314 |
, ("AllocLastResort", "last_resort") |
315 |
, ("AllocUnallocable", "unallocable") |
316 |
]) |
317 |
$(THH.makeJSONInstance ''AllocPolicy) |
318 |
|
319 |
-- | The Instance real state type. FIXME: this could be improved to |
320 |
-- just wrap a /NormalState AdminStatus | ErrorState ErrorCondition/. |
321 |
$(THH.declareLADT ''String "InstanceStatus" |
322 |
[ ("StatusDown", "ADMIN_down") |
323 |
, ("StatusOffline", "ADMIN_offline") |
324 |
, ("ErrorDown", "ERROR_down") |
325 |
, ("ErrorUp", "ERROR_up") |
326 |
, ("NodeDown", "ERROR_nodedown") |
327 |
, ("NodeOffline", "ERROR_nodeoffline") |
328 |
, ("Running", "running") |
329 |
, ("WrongNode", "ERROR_wrongnode") |
330 |
]) |
331 |
$(THH.makeJSONInstance ''InstanceStatus) |
332 |
|
333 |
-- | Migration mode. |
334 |
$(THH.declareLADT ''String "MigrationMode" |
335 |
[ ("MigrationLive", "live") |
336 |
, ("MigrationNonLive", "non-live") |
337 |
]) |
338 |
$(THH.makeJSONInstance ''MigrationMode) |
339 |
|
340 |
-- | Verify optional checks. |
341 |
$(THH.declareLADT ''String "VerifyOptionalChecks" |
342 |
[ ("VerifyNPlusOneMem", "nplusone_mem") |
343 |
]) |
344 |
$(THH.makeJSONInstance ''VerifyOptionalChecks) |
345 |
|
346 |
-- | Cluster verify error codes. |
347 |
$(THH.declareLADT ''String "CVErrorCode" |
348 |
[ ("CvECLUSTERCFG", "ECLUSTERCFG") |
349 |
, ("CvECLUSTERCERT", "ECLUSTERCERT") |
350 |
, ("CvECLUSTERFILECHECK", "ECLUSTERFILECHECK") |
351 |
, ("CvECLUSTERDANGLINGNODES", "ECLUSTERDANGLINGNODES") |
352 |
, ("CvECLUSTERDANGLINGINST", "ECLUSTERDANGLINGINST") |
353 |
, ("CvEINSTANCEBADNODE", "EINSTANCEBADNODE") |
354 |
, ("CvEINSTANCEDOWN", "EINSTANCEDOWN") |
355 |
, ("CvEINSTANCELAYOUT", "EINSTANCELAYOUT") |
356 |
, ("CvEINSTANCEMISSINGDISK", "EINSTANCEMISSINGDISK") |
357 |
, ("CvEINSTANCEFAULTYDISK", "EINSTANCEFAULTYDISK") |
358 |
, ("CvEINSTANCEWRONGNODE", "EINSTANCEWRONGNODE") |
359 |
, ("CvEINSTANCESPLITGROUPS", "EINSTANCESPLITGROUPS") |
360 |
, ("CvEINSTANCEPOLICY", "EINSTANCEPOLICY") |
361 |
, ("CvEINSTANCEUNSUITABLENODE", "EINSTANCEUNSUITABLENODE") |
362 |
, ("CvEINSTANCEMISSINGCFGPARAMETER", "EINSTANCEMISSINGCFGPARAMETER") |
363 |
, ("CvENODEDRBD", "ENODEDRBD") |
364 |
, ("CvENODEDRBDVERSION", "ENODEDRBDVERSION") |
365 |
, ("CvENODEDRBDHELPER", "ENODEDRBDHELPER") |
366 |
, ("CvENODEFILECHECK", "ENODEFILECHECK") |
367 |
, ("CvENODEHOOKS", "ENODEHOOKS") |
368 |
, ("CvENODEHV", "ENODEHV") |
369 |
, ("CvENODELVM", "ENODELVM") |
370 |
, ("CvENODEN1", "ENODEN1") |
371 |
, ("CvENODENET", "ENODENET") |
372 |
, ("CvENODEOS", "ENODEOS") |
373 |
, ("CvENODEORPHANINSTANCE", "ENODEORPHANINSTANCE") |
374 |
, ("CvENODEORPHANLV", "ENODEORPHANLV") |
375 |
, ("CvENODERPC", "ENODERPC") |
376 |
, ("CvENODESSH", "ENODESSH") |
377 |
, ("CvENODEVERSION", "ENODEVERSION") |
378 |
, ("CvENODESETUP", "ENODESETUP") |
379 |
, ("CvENODETIME", "ENODETIME") |
380 |
, ("CvENODEOOBPATH", "ENODEOOBPATH") |
381 |
, ("CvENODEUSERSCRIPTS", "ENODEUSERSCRIPTS") |
382 |
, ("CvENODEFILESTORAGEPATHS", "ENODEFILESTORAGEPATHS") |
383 |
, ("CvENODEFILESTORAGEPATHUNUSABLE", "ENODEFILESTORAGEPATHUNUSABLE") |
384 |
, ("CvENODESHAREDFILESTORAGEPATHUNUSABLE", |
385 |
"ENODESHAREDFILESTORAGEPATHUNUSABLE") |
386 |
, ("CvEGROUPDIFFERENTPVSIZE", "EGROUPDIFFERENTPVSIZE") |
387 |
]) |
388 |
$(THH.makeJSONInstance ''CVErrorCode) |
389 |
|
390 |
-- | Dynamic device modification, just add\/remove version. |
391 |
$(THH.declareLADT ''String "DdmSimple" |
392 |
[ ("DdmSimpleAdd", "add") |
393 |
, ("DdmSimpleRemove", "remove") |
394 |
]) |
395 |
$(THH.makeJSONInstance ''DdmSimple) |
396 |
|
397 |
-- | Dynamic device modification, all operations version. |
398 |
$(THH.declareLADT ''String "DdmFull" |
399 |
[ ("DdmFullAdd", "add") |
400 |
, ("DdmFullRemove", "remove") |
401 |
, ("DdmFullModify", "modify") |
402 |
]) |
403 |
$(THH.makeJSONInstance ''DdmFull) |
404 |
|
405 |
-- | Hypervisor type definitions. |
406 |
$(THH.declareLADT ''String "Hypervisor" |
407 |
[ ("Kvm", "kvm") |
408 |
, ("XenPvm", "xen-pvm") |
409 |
, ("Chroot", "chroot") |
410 |
, ("XenHvm", "xen-hvm") |
411 |
, ("Lxc", "lxc") |
412 |
, ("Fake", "fake") |
413 |
]) |
414 |
$(THH.makeJSONInstance ''Hypervisor) |
415 |
|
416 |
instance THH.PyValue Hypervisor where |
417 |
showValue = show . hypervisorToRaw |
418 |
|
419 |
-- | Oob command type. |
420 |
$(THH.declareLADT ''String "OobCommand" |
421 |
[ ("OobHealth", "health") |
422 |
, ("OobPowerCycle", "power-cycle") |
423 |
, ("OobPowerOff", "power-off") |
424 |
, ("OobPowerOn", "power-on") |
425 |
, ("OobPowerStatus", "power-status") |
426 |
]) |
427 |
$(THH.makeJSONInstance ''OobCommand) |
428 |
|
429 |
-- | Oob command status |
430 |
$(THH.declareLADT ''String "OobStatus" |
431 |
[ ("OobStatusCritical", "CRITICAL") |
432 |
, ("OobStatusOk", "OK") |
433 |
, ("OobStatusUnknown", "UNKNOWN") |
434 |
, ("OobStatusWarning", "WARNING") |
435 |
]) |
436 |
$(THH.makeJSONInstance ''OobStatus) |
437 |
|
438 |
-- | Storage type. |
439 |
$(THH.declareLADT ''String "StorageType" |
440 |
[ ("StorageFile", "file") |
441 |
, ("StorageLvmPv", "lvm-pv") |
442 |
, ("StorageLvmVg", "lvm-vg") |
443 |
, ("StorageDiskless", "diskless") |
444 |
, ("StorageBlock", "blockdev") |
445 |
, ("StorageRados", "rados") |
446 |
, ("StorageExt", "ext") |
447 |
]) |
448 |
$(THH.makeJSONInstance ''StorageType) |
449 |
|
450 |
-- | Storage keys are identifiers for storage units. Their content varies |
451 |
-- depending on the storage type, for example a storage key for LVM storage |
452 |
-- is the volume group name. |
453 |
type StorageKey = String |
454 |
|
455 |
-- | Storage parameters |
456 |
type SPExclusiveStorage = Bool |
457 |
|
458 |
-- | Storage units without storage-type-specific parameters |
459 |
data StorageUnitRaw = SURaw StorageType StorageKey |
460 |
|
461 |
-- | Full storage unit with storage-type-specific parameters |
462 |
data StorageUnit = SUFile StorageKey |
463 |
| SULvmPv StorageKey SPExclusiveStorage |
464 |
| SULvmVg StorageKey SPExclusiveStorage |
465 |
| SUDiskless StorageKey |
466 |
| SUBlock StorageKey |
467 |
| SURados StorageKey |
468 |
| SUExt StorageKey |
469 |
deriving (Eq) |
470 |
|
471 |
instance Show StorageUnit where |
472 |
show (SUFile key) = showSUSimple StorageFile key |
473 |
show (SULvmPv key es) = showSULvm StorageLvmPv key es |
474 |
show (SULvmVg key es) = showSULvm StorageLvmVg key es |
475 |
show (SUDiskless key) = showSUSimple StorageDiskless key |
476 |
show (SUBlock key) = showSUSimple StorageBlock key |
477 |
show (SURados key) = showSUSimple StorageRados key |
478 |
show (SUExt key) = showSUSimple StorageExt key |
479 |
|
480 |
instance JSON StorageUnit where |
481 |
showJSON (SUFile key) = showJSON (StorageFile, key, []::[String]) |
482 |
showJSON (SULvmPv key es) = showJSON (StorageLvmPv, key, [es]) |
483 |
showJSON (SULvmVg key es) = showJSON (StorageLvmVg, key, [es]) |
484 |
showJSON (SUDiskless key) = showJSON (StorageDiskless, key, []::[String]) |
485 |
showJSON (SUBlock key) = showJSON (StorageBlock, key, []::[String]) |
486 |
showJSON (SURados key) = showJSON (StorageRados, key, []::[String]) |
487 |
showJSON (SUExt key) = showJSON (StorageExt, key, []::[String]) |
488 |
-- FIXME: add readJSON implementation |
489 |
readJSON = fail "Not implemented" |
490 |
|
491 |
-- | Composes a string representation of storage types without |
492 |
-- storage parameters |
493 |
showSUSimple :: StorageType -> StorageKey -> String |
494 |
showSUSimple st sk = show (storageTypeToRaw st, sk, []::[String]) |
495 |
|
496 |
-- | Composes a string representation of the LVM storage types |
497 |
showSULvm :: StorageType -> StorageKey -> SPExclusiveStorage -> String |
498 |
showSULvm st sk es = show (storageTypeToRaw st, sk, [es]) |
499 |
|
500 |
-- | Mapping from disk templates to storage types |
501 |
-- FIXME: This is semantically the same as the constant |
502 |
-- C.diskTemplatesStorageType, remove this when python constants |
503 |
-- are generated from haskell constants |
504 |
diskTemplateToStorageType :: DiskTemplate -> StorageType |
505 |
diskTemplateToStorageType DTExt = StorageExt |
506 |
diskTemplateToStorageType DTFile = StorageFile |
507 |
diskTemplateToStorageType DTSharedFile = StorageFile |
508 |
diskTemplateToStorageType DTDrbd8 = StorageLvmVg |
509 |
diskTemplateToStorageType DTPlain = StorageLvmVg |
510 |
diskTemplateToStorageType DTRbd = StorageRados |
511 |
diskTemplateToStorageType DTDiskless = StorageDiskless |
512 |
diskTemplateToStorageType DTBlock = StorageBlock |
513 |
|
514 |
-- | Equips a raw storage unit with its parameters |
515 |
addParamsToStorageUnit :: SPExclusiveStorage -> StorageUnitRaw -> StorageUnit |
516 |
addParamsToStorageUnit _ (SURaw StorageBlock key) = SUBlock key |
517 |
addParamsToStorageUnit _ (SURaw StorageDiskless key) = SUDiskless key |
518 |
addParamsToStorageUnit _ (SURaw StorageExt key) = SUExt key |
519 |
addParamsToStorageUnit _ (SURaw StorageFile key) = SUFile key |
520 |
addParamsToStorageUnit es (SURaw StorageLvmPv key) = SULvmPv key es |
521 |
addParamsToStorageUnit es (SURaw StorageLvmVg key) = SULvmVg key es |
522 |
addParamsToStorageUnit _ (SURaw StorageRados key) = SURados key |
523 |
|
524 |
-- | Node evac modes. |
525 |
-- |
526 |
-- This is part of the 'IAllocator' interface and it is used, for |
527 |
-- example, in 'Ganeti.HTools.Loader.RqType'. However, it must reside |
528 |
-- in this module, and not in 'Ganeti.HTools.Types', because it is |
529 |
-- also used by 'Ganeti.HsConstants'. |
530 |
$(THH.declareLADT ''String "EvacMode" |
531 |
[ ("ChangePrimary", "primary-only") |
532 |
, ("ChangeSecondary", "secondary-only") |
533 |
, ("ChangeAll", "all") |
534 |
]) |
535 |
$(THH.makeJSONInstance ''EvacMode) |
536 |
|
537 |
-- | The file driver type. |
538 |
$(THH.declareLADT ''String "FileDriver" |
539 |
[ ("FileLoop", "loop") |
540 |
, ("FileBlktap", "blktap") |
541 |
]) |
542 |
$(THH.makeJSONInstance ''FileDriver) |
543 |
|
544 |
-- | The instance create mode. |
545 |
$(THH.declareLADT ''String "InstCreateMode" |
546 |
[ ("InstCreate", "create") |
547 |
, ("InstImport", "import") |
548 |
, ("InstRemoteImport", "remote-import") |
549 |
]) |
550 |
$(THH.makeJSONInstance ''InstCreateMode) |
551 |
|
552 |
-- | Reboot type. |
553 |
$(THH.declareLADT ''String "RebootType" |
554 |
[ ("RebootSoft", "soft") |
555 |
, ("RebootHard", "hard") |
556 |
, ("RebootFull", "full") |
557 |
]) |
558 |
$(THH.makeJSONInstance ''RebootType) |
559 |
|
560 |
-- | Export modes. |
561 |
$(THH.declareLADT ''String "ExportMode" |
562 |
[ ("ExportModeLocal", "local") |
563 |
, ("ExportModeRemote", "remote") |
564 |
]) |
565 |
$(THH.makeJSONInstance ''ExportMode) |
566 |
|
567 |
-- | IAllocator run types (OpTestIAllocator). |
568 |
$(THH.declareLADT ''String "IAllocatorTestDir" |
569 |
[ ("IAllocatorDirIn", "in") |
570 |
, ("IAllocatorDirOut", "out") |
571 |
]) |
572 |
$(THH.makeJSONInstance ''IAllocatorTestDir) |
573 |
|
574 |
-- | IAllocator mode. FIXME: use this in "HTools.Backend.IAlloc". |
575 |
$(THH.declareLADT ''String "IAllocatorMode" |
576 |
[ ("IAllocatorAlloc", "allocate") |
577 |
, ("IAllocatorMultiAlloc", "multi-allocate") |
578 |
, ("IAllocatorReloc", "relocate") |
579 |
, ("IAllocatorNodeEvac", "node-evacuate") |
580 |
, ("IAllocatorChangeGroup", "change-group") |
581 |
]) |
582 |
$(THH.makeJSONInstance ''IAllocatorMode) |
583 |
|
584 |
-- | Network mode. |
585 |
$(THH.declareLADT ''String "NICMode" |
586 |
[ ("NMBridged", "bridged") |
587 |
, ("NMRouted", "routed") |
588 |
, ("NMOvs", "openvswitch") |
589 |
, ("NMPool", "pool") |
590 |
]) |
591 |
$(THH.makeJSONInstance ''NICMode) |
592 |
|
593 |
-- | The JobStatus data type. Note that this is ordered especially |
594 |
-- such that greater\/lesser comparison on values of this type makes |
595 |
-- sense. |
596 |
$(THH.declareLADT ''String "JobStatus" |
597 |
[ ("JOB_STATUS_QUEUED", "queued") |
598 |
, ("JOB_STATUS_WAITING", "waiting") |
599 |
, ("JOB_STATUS_CANCELING", "canceling") |
600 |
, ("JOB_STATUS_RUNNING", "running") |
601 |
, ("JOB_STATUS_CANCELED", "canceled") |
602 |
, ("JOB_STATUS_SUCCESS", "success") |
603 |
, ("JOB_STATUS_ERROR", "error") |
604 |
]) |
605 |
$(THH.makeJSONInstance ''JobStatus) |
606 |
|
607 |
-- | Finalized job status. |
608 |
$(THH.declareLADT ''String "FinalizedJobStatus" |
609 |
[ ("JobStatusCanceled", "canceled") |
610 |
, ("JobStatusSuccessful", "success") |
611 |
, ("JobStatusFailed", "error") |
612 |
]) |
613 |
$(THH.makeJSONInstance ''FinalizedJobStatus) |
614 |
|
615 |
-- | The Ganeti job type. |
616 |
newtype JobId = JobId { fromJobId :: Int } |
617 |
deriving (Show, Eq) |
618 |
|
619 |
-- | Builds a job ID. |
620 |
makeJobId :: (Monad m) => Int -> m JobId |
621 |
makeJobId i | i >= 0 = return $ JobId i |
622 |
| otherwise = fail $ "Invalid value for job ID ' " ++ show i ++ "'" |
623 |
|
624 |
-- | Builds a job ID from a string. |
625 |
makeJobIdS :: (Monad m) => String -> m JobId |
626 |
makeJobIdS s = tryRead "parsing job id" s >>= makeJobId |
627 |
|
628 |
-- | Parses a job ID. |
629 |
parseJobId :: (Monad m) => JSON.JSValue -> m JobId |
630 |
parseJobId (JSON.JSString x) = makeJobIdS $ JSON.fromJSString x |
631 |
parseJobId (JSON.JSRational _ x) = |
632 |
if denominator x /= 1 |
633 |
then fail $ "Got fractional job ID from master daemon?! Value:" ++ show x |
634 |
-- FIXME: potential integer overflow here on 32-bit platforms |
635 |
else makeJobId . fromIntegral . numerator $ x |
636 |
parseJobId x = fail $ "Wrong type/value for job id: " ++ show x |
637 |
|
638 |
instance JSON.JSON JobId where |
639 |
showJSON = JSON.showJSON . fromJobId |
640 |
readJSON = parseJobId |
641 |
|
642 |
-- | Relative job ID type alias. |
643 |
type RelativeJobId = Negative Int |
644 |
|
645 |
-- | Job ID dependency. |
646 |
data JobIdDep = JobDepRelative RelativeJobId |
647 |
| JobDepAbsolute JobId |
648 |
deriving (Show, Eq) |
649 |
|
650 |
instance JSON.JSON JobIdDep where |
651 |
showJSON (JobDepRelative i) = showJSON i |
652 |
showJSON (JobDepAbsolute i) = showJSON i |
653 |
readJSON v = |
654 |
case JSON.readJSON v::JSON.Result (Negative Int) of |
655 |
-- first try relative dependency, usually most common |
656 |
JSON.Ok r -> return $ JobDepRelative r |
657 |
JSON.Error _ -> liftM JobDepAbsolute (parseJobId v) |
658 |
|
659 |
-- | Job Dependency type. |
660 |
data JobDependency = JobDependency JobIdDep [FinalizedJobStatus] |
661 |
deriving (Show, Eq) |
662 |
|
663 |
instance JSON JobDependency where |
664 |
showJSON (JobDependency dep status) = showJSON (dep, status) |
665 |
readJSON = liftM (uncurry JobDependency) . readJSON |
666 |
|
667 |
-- | Valid opcode priorities for submit. |
668 |
$(THH.declareIADT "OpSubmitPriority" |
669 |
[ ("OpPrioLow", 'ConstantUtils.priorityLow) |
670 |
, ("OpPrioNormal", 'ConstantUtils.priorityNormal) |
671 |
, ("OpPrioHigh", 'ConstantUtils.priorityHigh) |
672 |
]) |
673 |
$(THH.makeJSONInstance ''OpSubmitPriority) |
674 |
|
675 |
-- | Parse submit priorities from a string. |
676 |
parseSubmitPriority :: (Monad m) => String -> m OpSubmitPriority |
677 |
parseSubmitPriority "low" = return OpPrioLow |
678 |
parseSubmitPriority "normal" = return OpPrioNormal |
679 |
parseSubmitPriority "high" = return OpPrioHigh |
680 |
parseSubmitPriority str = fail $ "Unknown priority '" ++ str ++ "'" |
681 |
|
682 |
-- | Format a submit priority as string. |
683 |
fmtSubmitPriority :: OpSubmitPriority -> String |
684 |
fmtSubmitPriority OpPrioLow = "low" |
685 |
fmtSubmitPriority OpPrioNormal = "normal" |
686 |
fmtSubmitPriority OpPrioHigh = "high" |
687 |
|
688 |
-- | Our ADT for the OpCode status at runtime (while in a job). |
689 |
$(THH.declareLADT ''String "OpStatus" |
690 |
[ ("OP_STATUS_QUEUED", "queued") |
691 |
, ("OP_STATUS_WAITING", "waiting") |
692 |
, ("OP_STATUS_CANCELING", "canceling") |
693 |
, ("OP_STATUS_RUNNING", "running") |
694 |
, ("OP_STATUS_CANCELED", "canceled") |
695 |
, ("OP_STATUS_SUCCESS", "success") |
696 |
, ("OP_STATUS_ERROR", "error") |
697 |
]) |
698 |
$(THH.makeJSONInstance ''OpStatus) |
699 |
|
700 |
-- | Type for the job message type. |
701 |
$(THH.declareLADT ''String "ELogType" |
702 |
[ ("ELogMessage", "message") |
703 |
, ("ELogRemoteImport", "remote-import") |
704 |
, ("ELogJqueueTest", "jqueue-test") |
705 |
]) |
706 |
$(THH.makeJSONInstance ''ELogType) |
707 |
|
708 |
-- | Type of one element of a reason trail. |
709 |
type ReasonElem = (String, String, Integer) |
710 |
|
711 |
-- | Type representing a reason trail. |
712 |
type ReasonTrail = [ReasonElem] |
713 |
|
714 |
-- | The VTYPES, a mini-type system in Python. |
715 |
$(THH.declareLADT ''String "VType" |
716 |
[ ("VTypeString", "string") |
717 |
, ("VTypeMaybeString", "maybe-string") |
718 |
, ("VTypeBool", "bool") |
719 |
, ("VTypeSize", "size") |
720 |
, ("VTypeInt", "int") |
721 |
]) |
722 |
$(THH.makeJSONInstance ''VType) |
723 |
|
724 |
-- * Node role type |
725 |
|
726 |
$(THH.declareLADT ''String "NodeRole" |
727 |
[ ("NROffline", "O") |
728 |
, ("NRDrained", "D") |
729 |
, ("NRRegular", "R") |
730 |
, ("NRCandidate", "C") |
731 |
, ("NRMaster", "M") |
732 |
]) |
733 |
$(THH.makeJSONInstance ''NodeRole) |
734 |
|
735 |
-- | The description of the node role. |
736 |
roleDescription :: NodeRole -> String |
737 |
roleDescription NROffline = "offline" |
738 |
roleDescription NRDrained = "drained" |
739 |
roleDescription NRRegular = "regular" |
740 |
roleDescription NRCandidate = "master candidate" |
741 |
roleDescription NRMaster = "master" |
742 |
|
743 |
-- * Disk types |
744 |
|
745 |
$(THH.declareLADT ''String "DiskMode" |
746 |
[ ("DiskRdOnly", "ro") |
747 |
, ("DiskRdWr", "rw") |
748 |
]) |
749 |
$(THH.makeJSONInstance ''DiskMode) |
750 |
|
751 |
-- | The persistent block driver type. Currently only one type is allowed. |
752 |
$(THH.declareLADT ''String "BlockDriver" |
753 |
[ ("BlockDrvManual", "manual") |
754 |
]) |
755 |
$(THH.makeJSONInstance ''BlockDriver) |
756 |
|
757 |
-- * Instance types |
758 |
|
759 |
$(THH.declareLADT ''String "AdminState" |
760 |
[ ("AdminOffline", "offline") |
761 |
, ("AdminDown", "down") |
762 |
, ("AdminUp", "up") |
763 |
]) |
764 |
$(THH.makeJSONInstance ''AdminState) |
765 |
|
766 |
-- * Storage field type |
767 |
|
768 |
$(THH.declareLADT ''String "StorageField" |
769 |
[ ( "SFUsed", "used") |
770 |
, ( "SFName", "name") |
771 |
, ( "SFAllocatable", "allocatable") |
772 |
, ( "SFFree", "free") |
773 |
, ( "SFSize", "size") |
774 |
]) |
775 |
$(THH.makeJSONInstance ''StorageField) |
776 |
|
777 |
-- * Disk access protocol |
778 |
|
779 |
$(THH.declareLADT ''String "DiskAccessMode" |
780 |
[ ( "DiskUserspace", "userspace") |
781 |
, ( "DiskKernelspace", "kernelspace") |
782 |
]) |
783 |
$(THH.makeJSONInstance ''DiskAccessMode) |
784 |
|
785 |
-- | Replace disks type. |
786 |
$(THH.declareLADT ''String "ReplaceDisksMode" |
787 |
[ -- Replace disks on primary |
788 |
("ReplaceOnPrimary", "replace_on_primary") |
789 |
-- Replace disks on secondary |
790 |
, ("ReplaceOnSecondary", "replace_on_secondary") |
791 |
-- Change secondary node |
792 |
, ("ReplaceNewSecondary", "replace_new_secondary") |
793 |
, ("ReplaceAuto", "replace_auto") |
794 |
]) |
795 |
$(THH.makeJSONInstance ''ReplaceDisksMode) |