root / htools / Ganeti / OpCodes.hs @ a583ec5d
History | View | Annotate | Download (2.7 kB)
| 1 |
{-# LANGUAGE TemplateHaskell #-}
|
|---|---|
| 2 |
|
| 3 |
{-| Implementation of the opcodes.
|
| 4 |
|
| 5 |
-} |
| 6 |
|
| 7 |
{-
|
| 8 |
|
| 9 |
Copyright (C) 2009, 2010, 2011, 2012 Google Inc. |
| 10 |
|
| 11 |
This program is free software; you can redistribute it and/or modify |
| 12 |
it under the terms of the GNU General Public License as published by |
| 13 |
the Free Software Foundation; either version 2 of the License, or |
| 14 |
(at your option) any later version. |
| 15 |
|
| 16 |
This program is distributed in the hope that it will be useful, but |
| 17 |
WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 19 |
General Public License for more details. |
| 20 |
|
| 21 |
You should have received a copy of the GNU General Public License |
| 22 |
along with this program; if not, write to the Free Software |
| 23 |
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 24 |
02110-1301, USA. |
| 25 |
|
| 26 |
-} |
| 27 |
|
| 28 |
module Ganeti.OpCodes |
| 29 |
( OpCode(..) |
| 30 |
, ReplaceDisksMode(..) |
| 31 |
, opID |
| 32 |
, allOpIDs |
| 33 |
) where |
| 34 |
|
| 35 |
import Text.JSON (readJSON, showJSON, makeObj, JSON) |
| 36 |
|
| 37 |
import qualified Ganeti.Constants as C |
| 38 |
import Ganeti.THH |
| 39 |
|
| 40 |
import Ganeti.HTools.JSON |
| 41 |
|
| 42 |
-- | Replace disks type. |
| 43 |
$(declareSADT "ReplaceDisksMode" |
| 44 |
[ ("ReplaceOnPrimary", 'C.replaceDiskPri)
|
| 45 |
, ("ReplaceOnSecondary", 'C.replaceDiskSec)
|
| 46 |
, ("ReplaceNewSecondary", 'C.replaceDiskChg)
|
| 47 |
, ("ReplaceAuto", 'C.replaceDiskAuto)
|
| 48 |
]) |
| 49 |
$(makeJSONInstance ''ReplaceDisksMode) |
| 50 |
|
| 51 |
-- | OpCode representation. |
| 52 |
-- |
| 53 |
-- We only implement a subset of Ganeti opcodes, but only what we |
| 54 |
-- actually use in the htools codebase. |
| 55 |
$(genOpCode "OpCode" |
| 56 |
[ ("OpTestDelay",
|
| 57 |
[ simpleField "duration" [t| Double |] |
| 58 |
, simpleField "on_master" [t| Bool |] |
| 59 |
, simpleField "on_nodes" [t| [String] |] |
| 60 |
]) |
| 61 |
, ("OpInstanceReplaceDisks",
|
| 62 |
[ simpleField "instance_name" [t| String |] |
| 63 |
, optionalField $ simpleField "remote_node" [t| String |] |
| 64 |
, simpleField "mode" [t| ReplaceDisksMode |] |
| 65 |
, simpleField "disks" [t| [Int] |] |
| 66 |
, optionalField $ simpleField "iallocator" [t| String |] |
| 67 |
]) |
| 68 |
, ("OpInstanceFailover",
|
| 69 |
[ simpleField "instance_name" [t| String |] |
| 70 |
, simpleField "ignore_consistency" [t| Bool |] |
| 71 |
, optionalField $ simpleField "target_node" [t| String |] |
| 72 |
]) |
| 73 |
, ("OpInstanceMigrate",
|
| 74 |
[ simpleField "instance_name" [t| String |] |
| 75 |
, simpleField "live" [t| Bool |] |
| 76 |
, simpleField "cleanup" [t| Bool |] |
| 77 |
, defaultField [| False |] $ simpleField "allow_failover" [t| Bool |] |
| 78 |
, optionalField $ simpleField "target_node" [t| String |] |
| 79 |
]) |
| 80 |
]) |
| 81 |
|
| 82 |
-- | Returns the OP_ID for a given opcode value. |
| 83 |
$(genOpID ''OpCode "opID") |
| 84 |
|
| 85 |
-- | A list of all defined/supported opcode IDs. |
| 86 |
$(genAllOpIDs ''OpCode "allOpIDs") |
| 87 |
|
| 88 |
instance JSON OpCode where |
| 89 |
readJSON = loadOpCode |
| 90 |
showJSON = saveOpCode |