root / htools / Ganeti / Objects.hs @ 2e12944a
History | View | Annotate | Download (12.6 kB)
| 1 |
{-# LANGUAGE TemplateHaskell #-}
|
|---|---|
| 2 |
|
| 3 |
{-| Implementation of the Ganeti config objects.
|
| 4 |
|
| 5 |
Some object fields are not implemented yet, and as such they are |
| 6 |
commented out below. |
| 7 |
|
| 8 |
-} |
| 9 |
|
| 10 |
{-
|
| 11 |
|
| 12 |
Copyright (C) 2011, 2012 Google Inc. |
| 13 |
|
| 14 |
This program is free software; you can redistribute it and/or modify |
| 15 |
it under the terms of the GNU General Public License as published by |
| 16 |
the Free Software Foundation; either version 2 of the License, or |
| 17 |
(at your option) any later version. |
| 18 |
|
| 19 |
This program is distributed in the hope that it will be useful, but |
| 20 |
WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 22 |
General Public License for more details. |
| 23 |
|
| 24 |
You should have received a copy of the GNU General Public License |
| 25 |
along with this program; if not, write to the Free Software |
| 26 |
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 27 |
02110-1301, USA. |
| 28 |
|
| 29 |
-} |
| 30 |
|
| 31 |
module Ganeti.Objects |
| 32 |
( NICMode(..) |
| 33 |
, PartialNICParams(..) |
| 34 |
, FilledNICParams(..) |
| 35 |
, fillNICParams |
| 36 |
, PartialNIC(..) |
| 37 |
, DiskMode(..) |
| 38 |
, DiskType(..) |
| 39 |
, DiskLogicalId(..) |
| 40 |
, Disk(..) |
| 41 |
, DiskTemplate(..) |
| 42 |
, PartialBEParams(..) |
| 43 |
, FilledBEParams(..) |
| 44 |
, fillBEParams |
| 45 |
, Instance(..) |
| 46 |
, toDictInstance |
| 47 |
, PartialNDParams(..) |
| 48 |
, FilledNDParams(..) |
| 49 |
, fillNDParams |
| 50 |
, Node(..) |
| 51 |
, AllocPolicy(..) |
| 52 |
, NodeGroup(..) |
| 53 |
, Cluster(..) |
| 54 |
, ConfigData(..) |
| 55 |
) where |
| 56 |
|
| 57 |
import Data.Maybe |
| 58 |
import Text.JSON (makeObj, showJSON, readJSON, JSON, JSValue(..)) |
| 59 |
import qualified Text.JSON as J |
| 60 |
|
| 61 |
import qualified Ganeti.Constants as C |
| 62 |
import Ganeti.HTools.JSON |
| 63 |
|
| 64 |
import Ganeti.THH |
| 65 |
|
| 66 |
-- * NIC definitions |
| 67 |
|
| 68 |
$(declareSADT "NICMode" |
| 69 |
[ ("NMBridged", 'C.nicModeBridged)
|
| 70 |
, ("NMRouted", 'C.nicModeRouted)
|
| 71 |
]) |
| 72 |
$(makeJSONInstance ''NICMode) |
| 73 |
|
| 74 |
$(buildParam "NIC" "nicp" |
| 75 |
[ simpleField "mode" [t| NICMode |] |
| 76 |
, simpleField "link" [t| String |] |
| 77 |
]) |
| 78 |
|
| 79 |
$(buildObject "PartialNIC" "nic" |
| 80 |
[ simpleField "mac" [t| String |] |
| 81 |
, optionalField $ simpleField "ip" [t| String |] |
| 82 |
, simpleField "nicparams" [t| PartialNICParams |] |
| 83 |
]) |
| 84 |
|
| 85 |
-- * Disk definitions |
| 86 |
|
| 87 |
$(declareSADT "DiskMode" |
| 88 |
[ ("DiskRdOnly", 'C.diskRdonly)
|
| 89 |
, ("DiskRdWr", 'C.diskRdwr)
|
| 90 |
]) |
| 91 |
$(makeJSONInstance ''DiskMode) |
| 92 |
|
| 93 |
$(declareSADT "DiskType" |
| 94 |
[ ("LD_LV", 'C.ldLv)
|
| 95 |
, ("LD_DRBD8", 'C.ldDrbd8)
|
| 96 |
, ("LD_FILE", 'C.ldFile)
|
| 97 |
, ("LD_BLOCKDEV", 'C.ldBlockdev)
|
| 98 |
, ("LD_RADOS", 'C.ldRbd)
|
| 99 |
]) |
| 100 |
$(makeJSONInstance ''DiskType) |
| 101 |
|
| 102 |
-- | The file driver type. |
| 103 |
$(declareSADT "FileDriver" |
| 104 |
[ ("FileLoop", 'C.fdLoop)
|
| 105 |
, ("FileBlktap", 'C.fdBlktap)
|
| 106 |
]) |
| 107 |
$(makeJSONInstance ''FileDriver) |
| 108 |
|
| 109 |
-- | The persistent block driver type. Currently only one type is allowed. |
| 110 |
$(declareSADT "BlockDriver" |
| 111 |
[ ("BlockDrvManual", 'C.blockdevDriverManual)
|
| 112 |
]) |
| 113 |
$(makeJSONInstance ''BlockDriver) |
| 114 |
|
| 115 |
-- | Constant for the dev_type key entry in the disk config. |
| 116 |
devType :: String |
| 117 |
devType = "dev_type" |
| 118 |
|
| 119 |
-- | The disk configuration type. This includes the disk type itself, |
| 120 |
-- for a more complete consistency. Note that since in the Python |
| 121 |
-- code-base there's no authoritative place where we document the |
| 122 |
-- logical id, this is probably a good reference point. |
| 123 |
data DiskLogicalId |
| 124 |
= LIDPlain String String -- ^ Volume group, logical volume |
| 125 |
| LIDDrbd8 String String Int Int Int String |
| 126 |
-- ^ NodeA, NodeB, Port, MinorA, MinorB, Secret |
| 127 |
| LIDFile FileDriver String -- ^ Driver, path |
| 128 |
| LIDBlockDev BlockDriver String -- ^ Driver, path (must be under /dev) |
| 129 |
| LIDRados String String -- ^ Unused, path |
| 130 |
deriving (Read, Show, Eq) |
| 131 |
|
| 132 |
-- | Mapping from a logical id to a disk type. |
| 133 |
lidDiskType :: DiskLogicalId -> DiskType |
| 134 |
lidDiskType (LIDPlain {}) = LD_LV
|
| 135 |
lidDiskType (LIDDrbd8 {}) = LD_DRBD8
|
| 136 |
lidDiskType (LIDFile {}) = LD_FILE
|
| 137 |
lidDiskType (LIDBlockDev {}) = LD_BLOCKDEV
|
| 138 |
lidDiskType (LIDRados {}) = LD_RADOS
|
| 139 |
|
| 140 |
-- | Builds the extra disk_type field for a given logical id. |
| 141 |
lidEncodeType :: DiskLogicalId -> [(String, JSValue)] |
| 142 |
lidEncodeType v = [(devType, showJSON . lidDiskType $ v)] |
| 143 |
|
| 144 |
-- | Custom encoder for DiskLogicalId (logical id only). |
| 145 |
encodeDLId :: DiskLogicalId -> JSValue |
| 146 |
encodeDLId (LIDPlain vg lv) = JSArray [showJSON vg, showJSON lv] |
| 147 |
encodeDLId (LIDDrbd8 nodeA nodeB port minorA minorB key) = |
| 148 |
JSArray [ showJSON nodeA, showJSON nodeB, showJSON port |
| 149 |
, showJSON minorA, showJSON minorB, showJSON key ] |
| 150 |
encodeDLId (LIDRados pool name) = JSArray [showJSON pool, showJSON name] |
| 151 |
encodeDLId (LIDFile driver name) = JSArray [showJSON driver, showJSON name] |
| 152 |
encodeDLId (LIDBlockDev driver name) = JSArray [showJSON driver, showJSON name] |
| 153 |
|
| 154 |
-- | Custom encoder for DiskLogicalId, composing both the logical id |
| 155 |
-- and the extra disk_type field. |
| 156 |
encodeFullDLId :: DiskLogicalId -> (JSValue, [(String, JSValue)]) |
| 157 |
encodeFullDLId v = (encodeDLId v, lidEncodeType v) |
| 158 |
|
| 159 |
-- | Custom decoder for DiskLogicalId. This is manual for now, since |
| 160 |
-- we don't have yet automation for separate-key style fields. |
| 161 |
decodeDLId :: [(String, JSValue)] -> JSValue -> J.Result DiskLogicalId |
| 162 |
decodeDLId obj lid = do |
| 163 |
dtype <- fromObj obj devType |
| 164 |
case dtype of |
| 165 |
LD_DRBD8 -> |
| 166 |
case lid of |
| 167 |
JSArray [nA, nB, p, mA, mB, k] -> do |
| 168 |
nA' <- readJSON nA |
| 169 |
nB' <- readJSON nB |
| 170 |
p' <- readJSON p |
| 171 |
mA' <- readJSON mA |
| 172 |
mB' <- readJSON mB |
| 173 |
k' <- readJSON k |
| 174 |
return $ LIDDrbd8 nA' nB' p' mA' mB' k' |
| 175 |
_ -> fail $ "Can't read logical_id for DRBD8 type" |
| 176 |
LD_LV -> |
| 177 |
case lid of |
| 178 |
JSArray [vg, lv] -> do |
| 179 |
vg' <- readJSON vg |
| 180 |
lv' <- readJSON lv |
| 181 |
return $ LIDPlain vg' lv' |
| 182 |
_ -> fail $ "Can't read logical_id for plain type" |
| 183 |
LD_FILE -> |
| 184 |
case lid of |
| 185 |
JSArray [driver, path] -> do |
| 186 |
driver' <- readJSON driver |
| 187 |
path' <- readJSON path |
| 188 |
return $ LIDFile driver' path' |
| 189 |
_ -> fail $ "Can't read logical_id for file type" |
| 190 |
LD_BLOCKDEV -> |
| 191 |
case lid of |
| 192 |
JSArray [driver, path] -> do |
| 193 |
driver' <- readJSON driver |
| 194 |
path' <- readJSON path |
| 195 |
return $ LIDBlockDev driver' path' |
| 196 |
_ -> fail $ "Can't read logical_id for blockdev type" |
| 197 |
LD_RADOS -> |
| 198 |
case lid of |
| 199 |
JSArray [driver, path] -> do |
| 200 |
driver' <- readJSON driver |
| 201 |
path' <- readJSON path |
| 202 |
return $ LIDRados driver' path' |
| 203 |
_ -> fail $ "Can't read logical_id for rdb type" |
| 204 |
|
| 205 |
-- | Disk data structure. |
| 206 |
-- |
| 207 |
-- This is declared manually as it's a recursive structure, and our TH |
| 208 |
-- code currently can't build it. |
| 209 |
data Disk = Disk |
| 210 |
{ diskLogicalId :: DiskLogicalId
|
| 211 |
-- , diskPhysicalId :: String |
| 212 |
, diskChildren :: [Disk] |
| 213 |
, diskIvName :: String |
| 214 |
, diskSize :: Int |
| 215 |
, diskMode :: DiskMode |
| 216 |
} deriving (Read, Show, Eq) |
| 217 |
|
| 218 |
$(buildObjectSerialisation "Disk" |
| 219 |
[ customField 'decodeDLId 'encodeFullDLId $ |
| 220 |
simpleField "logical_id" [t| DiskLogicalId |] |
| 221 |
-- , simpleField "physical_id" [t| String |] |
| 222 |
, defaultField [| [] |] $ simpleField "children" [t| [Disk] |] |
| 223 |
, defaultField [| "" |] $ simpleField "iv_name" [t| String |] |
| 224 |
, simpleField "size" [t| Int |] |
| 225 |
, defaultField [| DiskRdWr |] $ simpleField "mode" [t| DiskMode |] |
| 226 |
]) |
| 227 |
|
| 228 |
-- * Instance definitions |
| 229 |
|
| 230 |
-- | Instance disk template type. **Copied from HTools/Types.hs** |
| 231 |
$(declareSADT "DiskTemplate" |
| 232 |
[ ("DTDiskless", 'C.dtDiskless)
|
| 233 |
, ("DTFile", 'C.dtFile)
|
| 234 |
, ("DTSharedFile", 'C.dtSharedFile)
|
| 235 |
, ("DTPlain", 'C.dtPlain)
|
| 236 |
, ("DTBlock", 'C.dtBlock)
|
| 237 |
, ("DTDrbd8", 'C.dtDrbd8)
|
| 238 |
]) |
| 239 |
$(makeJSONInstance ''DiskTemplate) |
| 240 |
|
| 241 |
$(declareSADT "AdminState" |
| 242 |
[ ("AdminOffline", 'C.adminstOffline)
|
| 243 |
, ("AdminDown", 'C.adminstDown)
|
| 244 |
, ("AdminUp", 'C.adminstUp)
|
| 245 |
]) |
| 246 |
$(makeJSONInstance ''AdminState) |
| 247 |
|
| 248 |
$(buildParam "BE" "bep" $ |
| 249 |
[ simpleField "minmem" [t| Int |] |
| 250 |
, simpleField "maxmem" [t| Int |] |
| 251 |
, simpleField "vcpus" [t| Int |] |
| 252 |
, simpleField "auto_balance" [t| Bool |] |
| 253 |
]) |
| 254 |
|
| 255 |
$(buildObject "Instance" "inst" $ |
| 256 |
[ simpleField "name" [t| String |] |
| 257 |
, simpleField "primary_node" [t| String |] |
| 258 |
, simpleField "os" [t| String |] |
| 259 |
, simpleField "hypervisor" [t| String |] |
| 260 |
-- , simpleField "hvparams" [t| [(String, String)] |] |
| 261 |
, simpleField "beparams" [t| PartialBEParams |] |
| 262 |
-- , simpleField "osparams" [t| [(String, String)] |] |
| 263 |
, simpleField "admin_state" [t| AdminState |] |
| 264 |
, simpleField "nics" [t| [PartialNIC] |] |
| 265 |
, simpleField "disks" [t| [Disk] |] |
| 266 |
, simpleField "disk_template" [t| DiskTemplate |] |
| 267 |
, optionalField $ simpleField "network_port" [t| Int |] |
| 268 |
] |
| 269 |
++ timeStampFields |
| 270 |
++ uuidFields |
| 271 |
++ serialFields) |
| 272 |
|
| 273 |
-- * Node definitions |
| 274 |
|
| 275 |
$(buildParam "ND" "ndp" $ |
| 276 |
[ simpleField "oob_program" [t| String |] |
| 277 |
]) |
| 278 |
|
| 279 |
$(buildObject "Node" "node" $ |
| 280 |
[ simpleField "name" [t| String |] |
| 281 |
, simpleField "primary_ip" [t| String |] |
| 282 |
, simpleField "secondary_ip" [t| String |] |
| 283 |
, simpleField "master_candidate" [t| Bool |] |
| 284 |
, simpleField "offline" [t| Bool |] |
| 285 |
, simpleField "drained" [t| Bool |] |
| 286 |
, simpleField "group" [t| String |] |
| 287 |
, simpleField "master_capable" [t| Bool |] |
| 288 |
, simpleField "vm_capable" [t| Bool |] |
| 289 |
-- , simpleField "ndparams" [t| PartialNDParams |] |
| 290 |
, simpleField "powered" [t| Bool |] |
| 291 |
] |
| 292 |
++ timeStampFields |
| 293 |
++ uuidFields |
| 294 |
++ serialFields) |
| 295 |
|
| 296 |
-- * NodeGroup definitions |
| 297 |
|
| 298 |
-- | The Group allocation policy type. |
| 299 |
-- |
| 300 |
-- Note that the order of constructors is important as the automatic |
| 301 |
-- Ord instance will order them in the order they are defined, so when |
| 302 |
-- changing this data type be careful about the interaction with the |
| 303 |
-- desired sorting order. |
| 304 |
-- |
| 305 |
-- FIXME: COPIED from Types.hs; we need to eliminate this duplication later |
| 306 |
$(declareSADT "AllocPolicy" |
| 307 |
[ ("AllocPreferred", 'C.allocPolicyPreferred)
|
| 308 |
, ("AllocLastResort", 'C.allocPolicyLastResort)
|
| 309 |
, ("AllocUnallocable", 'C.allocPolicyUnallocable)
|
| 310 |
]) |
| 311 |
$(makeJSONInstance ''AllocPolicy) |
| 312 |
|
| 313 |
$(buildObject "NodeGroup" "group" $ |
| 314 |
[ simpleField "name" [t| String |] |
| 315 |
, defaultField [| [] |] $ simpleField "members" [t| [String] |] |
| 316 |
-- , simpleField "ndparams" [t| PartialNDParams |] |
| 317 |
, simpleField "alloc_policy" [t| AllocPolicy |] |
| 318 |
] |
| 319 |
++ timeStampFields |
| 320 |
++ uuidFields |
| 321 |
++ serialFields) |
| 322 |
|
| 323 |
-- * Cluster definitions |
| 324 |
$(buildObject "Cluster" "cluster" $ |
| 325 |
[ simpleField "rsahostkeypub" [t| String |] |
| 326 |
, simpleField "highest_used_port" [t| Int |] |
| 327 |
, simpleField "tcpudp_port_pool" [t| [Int] |] |
| 328 |
, simpleField "mac_prefix" [t| String |] |
| 329 |
, simpleField "volume_group_name" [t| String |] |
| 330 |
, simpleField "reserved_lvs" [t| [String] |] |
| 331 |
-- , simpleField "drbd_usermode_helper" [t| String |] |
| 332 |
-- , simpleField "default_bridge" [t| String |] |
| 333 |
-- , simpleField "default_hypervisor" [t| String |] |
| 334 |
, simpleField "master_node" [t| String |] |
| 335 |
, simpleField "master_ip" [t| String |] |
| 336 |
, simpleField "master_netdev" [t| String |] |
| 337 |
-- , simpleField "master_netmask" [t| String |] |
| 338 |
, simpleField "cluster_name" [t| String |] |
| 339 |
, simpleField "file_storage_dir" [t| String |] |
| 340 |
-- , simpleField "shared_file_storage_dir" [t| String |] |
| 341 |
, simpleField "enabled_hypervisors" [t| [String] |] |
| 342 |
-- , simpleField "hvparams" [t| [(String, [(String, String)])] |] |
| 343 |
-- , simpleField "os_hvp" [t| [(String, String)] |] |
| 344 |
, containerField $ simpleField "beparams" [t| FilledBEParams |] |
| 345 |
-- , simpleField "osparams" [t| [(String, String)] |] |
| 346 |
, containerField $ simpleField "nicparams" [t| FilledNICParams |] |
| 347 |
-- , simpleField "ndparams" [t| FilledNDParams |] |
| 348 |
, simpleField "candidate_pool_size" [t| Int |] |
| 349 |
, simpleField "modify_etc_hosts" [t| Bool |] |
| 350 |
, simpleField "modify_ssh_setup" [t| Bool |] |
| 351 |
, simpleField "maintain_node_health" [t| Bool |] |
| 352 |
, simpleField "uid_pool" [t| [Int] |] |
| 353 |
, simpleField "default_iallocator" [t| String |] |
| 354 |
, simpleField "hidden_os" [t| [String] |] |
| 355 |
, simpleField "blacklisted_os" [t| [String] |] |
| 356 |
, simpleField "primary_ip_family" [t| Int |] |
| 357 |
, simpleField "prealloc_wipe_disks" [t| Bool |] |
| 358 |
] |
| 359 |
++ serialFields) |
| 360 |
|
| 361 |
-- * ConfigData definitions |
| 362 |
|
| 363 |
$(buildObject "ConfigData" "config" $ |
| 364 |
-- timeStampFields ++ |
| 365 |
[ simpleField "version" [t| Int |] |
| 366 |
, simpleField "cluster" [t| Cluster |] |
| 367 |
, containerField $ simpleField "nodes" [t| Node |] |
| 368 |
, containerField $ simpleField "nodegroups" [t| NodeGroup |] |
| 369 |
, containerField $ simpleField "instances" [t| Instance |] |
| 370 |
] |
| 371 |
++ serialFields) |