{-
-Copyright (C) 2009, 2010, 2011 Google Inc.
+Copyright (C) 2009, 2010, 2011, 2012 Google Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
, instanceStatusFromRaw
, instanceStatusToRaw
, RSpec(..)
+ , AllocInfo(..)
+ , AllocStats
, DynUtil(..)
, zeroUtil
, baseUtil
, addUtil
, subUtil
- , defVcpuRatio
, defReservedDiskRatio
, unitMem
, unitCpu
, connTimeout
, queryTimeout
, EvacMode(..)
+ , ISpec(..)
+ , IPolicy(..)
+ , defIPolicy
+ , rspecFromISpec
) where
import qualified Data.Map as M
-import qualified Text.JSON as JSON
+import Text.JSON (makeObj, readJSON, showJSON)
import qualified Ganeti.Constants as C
import qualified Ganeti.THH as THH
import Ganeti.BasicTypes
+import Ganeti.HTools.JSON
-- | The instance index type.
type Idx = Int
defaultGroupID :: GroupID
defaultGroupID = "00000000-0000-0000-0000-000000000000"
+-- | Instance disk template type.
+$(THH.declareSADT "DiskTemplate"
+ [ ("DTDiskless", 'C.dtDiskless)
+ , ("DTFile", 'C.dtFile)
+ , ("DTSharedFile", 'C.dtSharedFile)
+ , ("DTPlain", 'C.dtPlain)
+ , ("DTBlock", 'C.dtBlock)
+ , ("DTDrbd8", 'C.dtDrbd8)
+ , ("DTRbd", 'C.dtRbd)
+ ])
+$(THH.makeJSONInstance ''DiskTemplate)
+
-- | The Group allocation policy type.
--
-- Note that the order of constructors is important as the automatic
, rspecDsk :: Int -- ^ Requested disk
} deriving (Show, Read, Eq)
+-- | Allocation stats type. This is used instead of 'RSpec' (which was
+-- used at first), because we need to track more stats. The actual
+-- data can refer either to allocated, or available, etc. values
+-- depending on the context. See also
+-- 'Cluster.computeAllocationDelta'.
+data AllocInfo = AllocInfo
+ { allocInfoVCpus :: Int -- ^ VCPUs
+ , allocInfoNCpus :: Double -- ^ Normalised CPUs
+ , allocInfoMem :: Int -- ^ Memory
+ , allocInfoDisk :: Int -- ^ Disk
+ } deriving (Show, Read, Eq)
+
+-- | Currently used, possibly to allocate, unallocable.
+type AllocStats = (AllocInfo, AllocInfo, AllocInfo)
+
+-- | Instance specification type.
+$(THH.buildObject "ISpec" "iSpec"
+ [ THH.renameField "MemorySize" $ THH.simpleField C.ispecMemSize [t| Int |]
+ , THH.renameField "CpuCount" $ THH.simpleField C.ispecCpuCount [t| Int |]
+ , THH.renameField "DiskSize" $ THH.simpleField C.ispecDiskSize [t| Int |]
+ , THH.renameField "DiskCount" $ THH.simpleField C.ispecDiskCount [t| Int |]
+ , THH.renameField "NicCount" $ THH.simpleField C.ispecNicCount [t| Int |]
+ ])
+
+-- | The default minimum ispec.
+defMinISpec :: ISpec
+defMinISpec = ISpec { iSpecMemorySize = C.ipolicyDefaultsMinMemorySize
+ , iSpecCpuCount = C.ipolicyDefaultsMinCpuCount
+ , iSpecDiskSize = C.ipolicyDefaultsMinDiskSize
+ , iSpecDiskCount = C.ipolicyDefaultsMinDiskCount
+ , iSpecNicCount = C.ipolicyDefaultsMinNicCount
+ }
+
+-- | The default standard ispec.
+defStdISpec :: ISpec
+defStdISpec = ISpec { iSpecMemorySize = C.ipolicyDefaultsStdMemorySize
+ , iSpecCpuCount = C.ipolicyDefaultsStdCpuCount
+ , iSpecDiskSize = C.ipolicyDefaultsStdDiskSize
+ , iSpecDiskCount = C.ipolicyDefaultsStdDiskCount
+ , iSpecNicCount = C.ipolicyDefaultsStdNicCount
+ }
+
+-- | The default max ispec.
+defMaxISpec :: ISpec
+defMaxISpec = ISpec { iSpecMemorySize = C.ipolicyDefaultsMaxMemorySize
+ , iSpecCpuCount = C.ipolicyDefaultsMaxCpuCount
+ , iSpecDiskSize = C.ipolicyDefaultsMaxDiskSize
+ , iSpecDiskCount = C.ipolicyDefaultsMaxDiskCount
+ , iSpecNicCount = C.ipolicyDefaultsMaxNicCount
+ }
+
+-- | Instance policy type.
+$(THH.buildObject "IPolicy" "iPolicy"
+ [ THH.renameField "StdSpec" $ THH.simpleField C.ispecsStd [t| ISpec |]
+ , THH.renameField "MinSpec" $ THH.simpleField C.ispecsMin [t| ISpec |]
+ , THH.renameField "MaxSpec" $ THH.simpleField C.ispecsMax [t| ISpec |]
+ , THH.renameField "DiskTemplates" $
+ THH.simpleField C.ipolicyDts [t| [DiskTemplate] |]
+ , THH.renameField "VcpuRatio" $
+ THH.simpleField C.ipolicyVcpuRatio [t| Double |]
+ , THH.renameField "SpindleRatio" $
+ THH.simpleField C.ipolicySpindleRatio [t| Double |]
+ ])
+
+-- | Converts an ISpec type to a RSpec one.
+rspecFromISpec :: ISpec -> RSpec
+rspecFromISpec ispec = RSpec { rspecCpu = iSpecCpuCount ispec
+ , rspecMem = iSpecMemorySize ispec
+ , rspecDsk = iSpecDiskSize ispec
+ }
+
+-- | The default instance policy.
+defIPolicy :: IPolicy
+defIPolicy = IPolicy { iPolicyStdSpec = defStdISpec
+ , iPolicyMinSpec = defMinISpec
+ , iPolicyMaxSpec = defMaxISpec
+ -- hardcoding here since Constants.hs exports the
+ -- string values, not the actual type; and in
+ -- htools, we are mostly looking at DRBD
+ , iPolicyDiskTemplates = [DTDrbd8, DTPlain]
+ , iPolicyVcpuRatio = C.ipolicyDefaultsVcpuRatio
+ , iPolicySpindleRatio = C.ipolicyDefaultsSpindleRatio
+ }
+
-- | The dynamic resource specs of a machine (i.e. load or load
-- capacity, as opposed to size).
data DynUtil = DynUtil
| FailoverAndReplace Ndx -- ^ Failover, replace secondary (f, r:ns)
deriving (Show, Read)
--- | Instance disk template type.
-$(THH.declareSADT "DiskTemplate"
- [ ("DTDiskless", 'C.dtDiskless)
- , ("DTFile", 'C.dtFile)
- , ("DTSharedFile", 'C.dtSharedFile)
- , ("DTPlain", 'C.dtPlain)
- , ("DTBlock", 'C.dtBlock)
- , ("DTDrbd8", 'C.dtDrbd8)
- ])
-$(THH.makeJSONInstance ''DiskTemplate)
-
-- | Formatted solution output for one move (involved nodes and
-- commands.
type MoveJob = ([Ndx], Idx, IMove, [String])
queryTimeout :: Int
queryTimeout = 60
--- | Default vcpu-to-pcpu ratio (randomly chosen value).
-defVcpuRatio :: Double
-defVcpuRatio = 64
-
-- | Default max disk usage ratio.
defReservedDiskRatio :: Double
defReservedDiskRatio = 0
projects / ganeti-local / blobdiff