root / src / Ganeti / Rpc.hs @ 289e7fcc
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1 | 1ca709c1 | Iustin Pop | {-# LANGUAGE MultiParamTypeClasses, FunctionalDependencies, |
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2 | 96dad12d | Agata Murawska | BangPatterns, TemplateHaskell #-} |
3 | d4709cce | Agata Murawska | |
4 | d4709cce | Agata Murawska | {-| Implementation of the RPC client. |
5 | d4709cce | Agata Murawska | |
6 | d4709cce | Agata Murawska | -} |
7 | d4709cce | Agata Murawska | |
8 | d4709cce | Agata Murawska | {- |
9 | d4709cce | Agata Murawska | |
10 | 1ca709c1 | Iustin Pop | Copyright (C) 2012, 2013 Google Inc. |
11 | d4709cce | Agata Murawska | |
12 | d4709cce | Agata Murawska | This program is free software; you can redistribute it and/or modify |
13 | d4709cce | Agata Murawska | it under the terms of the GNU General Public License as published by |
14 | d4709cce | Agata Murawska | the Free Software Foundation; either version 2 of the License, or |
15 | d4709cce | Agata Murawska | (at your option) any later version. |
16 | d4709cce | Agata Murawska | |
17 | d4709cce | Agata Murawska | This program is distributed in the hope that it will be useful, but |
18 | d4709cce | Agata Murawska | WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | d4709cce | Agata Murawska | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
20 | d4709cce | Agata Murawska | General Public License for more details. |
21 | d4709cce | Agata Murawska | |
22 | d4709cce | Agata Murawska | You should have received a copy of the GNU General Public License |
23 | d4709cce | Agata Murawska | along with this program; if not, write to the Free Software |
24 | d4709cce | Agata Murawska | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
25 | d4709cce | Agata Murawska | 02110-1301, USA. |
26 | d4709cce | Agata Murawska | |
27 | d4709cce | Agata Murawska | -} |
28 | d4709cce | Agata Murawska | |
29 | d4709cce | Agata Murawska | module Ganeti.Rpc |
30 | d4709cce | Agata Murawska | ( RpcCall |
31 | d4709cce | Agata Murawska | , Rpc |
32 | d4709cce | Agata Murawska | , RpcError(..) |
33 | 599239ad | Agata Murawska | , ERpcError |
34 | 60443f61 | Agata Murawska | , explainRpcError |
35 | eaed5f19 | Agata Murawska | , executeRpcCall |
36 | a246ce76 | Michele Tartara | , logRpcErrors |
37 | d4709cce | Agata Murawska | |
38 | d4709cce | Agata Murawska | , rpcCallName |
39 | d4709cce | Agata Murawska | , rpcCallTimeout |
40 | d4709cce | Agata Murawska | , rpcCallData |
41 | d4709cce | Agata Murawska | , rpcCallAcceptOffline |
42 | d4709cce | Agata Murawska | |
43 | d4709cce | Agata Murawska | , rpcResultFill |
44 | 96dad12d | Agata Murawska | |
45 | 96dad12d | Agata Murawska | , InstanceInfo(..) |
46 | 5188fdb7 | Agata Murawska | , RpcCallInstanceInfo(..) |
47 | 5188fdb7 | Agata Murawska | , RpcResultInstanceInfo(..) |
48 | 5188fdb7 | Agata Murawska | |
49 | 96dad12d | Agata Murawska | , RpcCallAllInstancesInfo(..) |
50 | 96dad12d | Agata Murawska | , RpcResultAllInstancesInfo(..) |
51 | 96dad12d | Agata Murawska | |
52 | c1c5aab1 | Agata Murawska | , RpcCallInstanceList(..) |
53 | c1c5aab1 | Agata Murawska | , RpcResultInstanceList(..) |
54 | c1c5aab1 | Agata Murawska | |
55 | dc623a95 | Agata Murawska | , HvInfo(..) |
56 | dc623a95 | Agata Murawska | , VgInfo(..) |
57 | dc623a95 | Agata Murawska | , RpcCallNodeInfo(..) |
58 | dc623a95 | Agata Murawska | , RpcResultNodeInfo(..) |
59 | dc623a95 | Agata Murawska | |
60 | 8779d21a | Agata Murawska | , RpcCallVersion(..) |
61 | 8779d21a | Agata Murawska | , RpcResultVersion(..) |
62 | 8779d21a | Agata Murawska | |
63 | 47163f0f | Agata Murawska | , StorageField(..) |
64 | 47163f0f | Agata Murawska | , RpcCallStorageList(..) |
65 | 47163f0f | Agata Murawska | , RpcResultStorageList(..) |
66 | 47163f0f | Agata Murawska | |
67 | de2a5704 | Iustin Pop | , RpcCallTestDelay(..) |
68 | de2a5704 | Iustin Pop | , RpcResultTestDelay(..) |
69 | de2a5704 | Iustin Pop | |
70 | 842515dd | Iustin Pop | , RpcCallExportList(..) |
71 | 842515dd | Iustin Pop | , RpcResultExportList(..) |
72 | 842515dd | Iustin Pop | |
73 | 96dad12d | Agata Murawska | , rpcTimeoutFromRaw -- FIXME: Not used anywhere |
74 | d4709cce | Agata Murawska | ) where |
75 | d4709cce | Agata Murawska | |
76 | 9b09c0be | Agata Murawska | import Control.Arrow (second) |
77 | 319322a7 | Bernardo Dal Seno | import qualified Data.Map as Map |
78 | 319322a7 | Bernardo Dal Seno | import Data.Maybe (fromMaybe) |
79 | d4709cce | Agata Murawska | import qualified Text.JSON as J |
80 | 9b09c0be | Agata Murawska | import Text.JSON.Pretty (pp_value) |
81 | d4709cce | Agata Murawska | |
82 | eaed5f19 | Agata Murawska | import Network.Curl |
83 | 7766de33 | Agata Murawska | import qualified Ganeti.Path as P |
84 | eaed5f19 | Agata Murawska | |
85 | 8920fa09 | Iustin Pop | import Ganeti.BasicTypes |
86 | eaed5f19 | Agata Murawska | import qualified Ganeti.Constants as C |
87 | a246ce76 | Michele Tartara | import Ganeti.Logging |
88 | d4709cce | Agata Murawska | import Ganeti.Objects |
89 | 96dad12d | Agata Murawska | import Ganeti.THH |
90 | 22381768 | Iustin Pop | import Ganeti.Types |
91 | 8920fa09 | Iustin Pop | import Ganeti.Curl.Multi |
92 | 8920fa09 | Iustin Pop | import Ganeti.Utils |
93 | eaed5f19 | Agata Murawska | |
94 | de2a5704 | Iustin Pop | -- * Base RPC functionality and types |
95 | de2a5704 | Iustin Pop | |
96 | eaed5f19 | Agata Murawska | -- | The curl options used for RPC. |
97 | eaed5f19 | Agata Murawska | curlOpts :: [CurlOption] |
98 | eaed5f19 | Agata Murawska | curlOpts = [ CurlFollowLocation False |
99 | eaed5f19 | Agata Murawska | , CurlSSLVerifyHost 0 |
100 | eaed5f19 | Agata Murawska | , CurlSSLVerifyPeer True |
101 | eaed5f19 | Agata Murawska | , CurlSSLCertType "PEM" |
102 | eaed5f19 | Agata Murawska | , CurlSSLKeyType "PEM" |
103 | eaed5f19 | Agata Murawska | , CurlConnectTimeout (fromIntegral C.rpcConnectTimeout) |
104 | eaed5f19 | Agata Murawska | ] |
105 | d4709cce | Agata Murawska | |
106 | d4709cce | Agata Murawska | -- | Data type for RPC error reporting. |
107 | d4709cce | Agata Murawska | data RpcError |
108 | 9c0a27d0 | Iustin Pop | = CurlLayerError String |
109 | d4709cce | Agata Murawska | | JsonDecodeError String |
110 | 6fddde87 | Agata Murawska | | RpcResultError String |
111 | 9c0a27d0 | Iustin Pop | | OfflineNodeError |
112 | 60443f61 | Agata Murawska | deriving (Show, Eq) |
113 | d4709cce | Agata Murawska | |
114 | 60443f61 | Agata Murawska | -- | Provide explanation to RPC errors. |
115 | 60443f61 | Agata Murawska | explainRpcError :: RpcError -> String |
116 | 9c0a27d0 | Iustin Pop | explainRpcError (CurlLayerError code) = |
117 | 9c0a27d0 | Iustin Pop | "Curl error:" ++ code |
118 | 60443f61 | Agata Murawska | explainRpcError (JsonDecodeError msg) = |
119 | 6fddde87 | Agata Murawska | "Error while decoding JSON from HTTP response: " ++ msg |
120 | 60443f61 | Agata Murawska | explainRpcError (RpcResultError msg) = |
121 | 6fddde87 | Agata Murawska | "Error reponse received from RPC server: " ++ msg |
122 | 9c0a27d0 | Iustin Pop | explainRpcError OfflineNodeError = |
123 | 9c0a27d0 | Iustin Pop | "Node is marked offline" |
124 | d4709cce | Agata Murawska | |
125 | 599239ad | Agata Murawska | type ERpcError = Either RpcError |
126 | 599239ad | Agata Murawska | |
127 | 96dad12d | Agata Murawska | -- | Basic timeouts for RPC calls. |
128 | 96dad12d | Agata Murawska | $(declareIADT "RpcTimeout" |
129 | 96dad12d | Agata Murawska | [ ( "Urgent", 'C.rpcTmoUrgent ) |
130 | 96dad12d | Agata Murawska | , ( "Fast", 'C.rpcTmoFast ) |
131 | 96dad12d | Agata Murawska | , ( "Normal", 'C.rpcTmoNormal ) |
132 | 96dad12d | Agata Murawska | , ( "Slow", 'C.rpcTmoSlow ) |
133 | 96dad12d | Agata Murawska | , ( "FourHours", 'C.rpcTmo4hrs ) |
134 | 96dad12d | Agata Murawska | , ( "OneDay", 'C.rpcTmo1day ) |
135 | 96dad12d | Agata Murawska | ]) |
136 | 96dad12d | Agata Murawska | |
137 | d4709cce | Agata Murawska | -- | A generic class for RPC calls. |
138 | d4709cce | Agata Murawska | class (J.JSON a) => RpcCall a where |
139 | d4709cce | Agata Murawska | -- | Give the (Python) name of the procedure. |
140 | d4709cce | Agata Murawska | rpcCallName :: a -> String |
141 | d4709cce | Agata Murawska | -- | Calculate the timeout value for the call execution. |
142 | d4709cce | Agata Murawska | rpcCallTimeout :: a -> Int |
143 | d4709cce | Agata Murawska | -- | Prepare arguments of the call to be send as POST. |
144 | d4709cce | Agata Murawska | rpcCallData :: Node -> a -> String |
145 | d4709cce | Agata Murawska | -- | Whether we accept offline nodes when making a call. |
146 | d4709cce | Agata Murawska | rpcCallAcceptOffline :: a -> Bool |
147 | d4709cce | Agata Murawska | |
148 | d4709cce | Agata Murawska | -- | Generic class that ensures matching RPC call with its respective |
149 | d4709cce | Agata Murawska | -- result. |
150 | 47163f0f | Agata Murawska | class (RpcCall a, J.JSON b) => Rpc a b | a -> b, b -> a where |
151 | 47163f0f | Agata Murawska | -- | Create a result based on the received HTTP response. |
152 | a93b711b | Agata Murawska | rpcResultFill :: a -> J.JSValue -> ERpcError b |
153 | eaed5f19 | Agata Murawska | |
154 | eaed5f19 | Agata Murawska | -- | Http Request definition. |
155 | eaed5f19 | Agata Murawska | data HttpClientRequest = HttpClientRequest |
156 | 85f6a869 | Iustin Pop | { requestUrl :: String -- ^ The actual URL for the node endpoint |
157 | 85f6a869 | Iustin Pop | , requestData :: String -- ^ The arguments for the call |
158 | 85f6a869 | Iustin Pop | , requestOpts :: [CurlOption] -- ^ The various curl options |
159 | eaed5f19 | Agata Murawska | } |
160 | eaed5f19 | Agata Murawska | |
161 | b5c3a4f2 | Guido Trotter | -- | Check if a string represented address is IPv6 |
162 | b5c3a4f2 | Guido Trotter | isIpV6 :: String -> Bool |
163 | 289e7fcc | Klaus Aehlig | isIpV6 = (':' `elem`) |
164 | b5c3a4f2 | Guido Trotter | |
165 | eaed5f19 | Agata Murawska | -- | Prepare url for the HTTP request. |
166 | eaed5f19 | Agata Murawska | prepareUrl :: (RpcCall a) => Node -> a -> String |
167 | eaed5f19 | Agata Murawska | prepareUrl node call = |
168 | eaed5f19 | Agata Murawska | let node_ip = nodePrimaryIp node |
169 | b5c3a4f2 | Guido Trotter | node_address = if isIpV6 node_ip |
170 | b5c3a4f2 | Guido Trotter | then "[" ++ node_ip ++ "]" |
171 | b5c3a4f2 | Guido Trotter | else node_ip |
172 | eaed5f19 | Agata Murawska | port = snd C.daemonsPortsGanetiNoded |
173 | b5c3a4f2 | Guido Trotter | path_prefix = "https://" ++ node_address ++ ":" ++ show port |
174 | 5b11f8db | Iustin Pop | in path_prefix ++ "/" ++ rpcCallName call |
175 | eaed5f19 | Agata Murawska | |
176 | eaed5f19 | Agata Murawska | -- | Create HTTP request for a given node provided it is online, |
177 | eaed5f19 | Agata Murawska | -- otherwise create empty response. |
178 | 85f6a869 | Iustin Pop | prepareHttpRequest :: (RpcCall a) => [CurlOption] -> Node -> a |
179 | 599239ad | Agata Murawska | -> ERpcError HttpClientRequest |
180 | 85f6a869 | Iustin Pop | prepareHttpRequest opts node call |
181 | 5b11f8db | Iustin Pop | | rpcCallAcceptOffline call || not (nodeOffline node) = |
182 | 85f6a869 | Iustin Pop | Right HttpClientRequest { requestUrl = prepareUrl node call |
183 | 85f6a869 | Iustin Pop | , requestData = rpcCallData node call |
184 | 85f6a869 | Iustin Pop | , requestOpts = opts ++ curlOpts |
185 | 5b11f8db | Iustin Pop | } |
186 | 9c0a27d0 | Iustin Pop | | otherwise = Left OfflineNodeError |
187 | eaed5f19 | Agata Murawska | |
188 | 8920fa09 | Iustin Pop | -- | Parse an HTTP reply. |
189 | 8920fa09 | Iustin Pop | parseHttpReply :: (Rpc a b) => |
190 | 8920fa09 | Iustin Pop | a -> ERpcError (CurlCode, String) -> ERpcError b |
191 | 8920fa09 | Iustin Pop | parseHttpReply _ (Left e) = Left e |
192 | 8920fa09 | Iustin Pop | parseHttpReply call (Right (CurlOK, body)) = parseHttpResponse call body |
193 | 8920fa09 | Iustin Pop | parseHttpReply _ (Right (code, err)) = |
194 | 8920fa09 | Iustin Pop | Left . CurlLayerError $ "code: " ++ show code ++ ", explanation: " ++ err |
195 | 8920fa09 | Iustin Pop | |
196 | 9b09c0be | Agata Murawska | -- | Parse a result based on the received HTTP response. |
197 | 8920fa09 | Iustin Pop | parseHttpResponse :: (Rpc a b) => a -> String -> ERpcError b |
198 | 8920fa09 | Iustin Pop | parseHttpResponse call res = |
199 | a93b711b | Agata Murawska | case J.decode res of |
200 | a93b711b | Agata Murawska | J.Error val -> Left $ JsonDecodeError val |
201 | a93b711b | Agata Murawska | J.Ok (True, res'') -> rpcResultFill call res'' |
202 | a93b711b | Agata Murawska | J.Ok (False, jerr) -> case jerr of |
203 | a93b711b | Agata Murawska | J.JSString msg -> Left $ RpcResultError (J.fromJSString msg) |
204 | a93b711b | Agata Murawska | _ -> Left . JsonDecodeError $ show (pp_value jerr) |
205 | 9b09c0be | Agata Murawska | |
206 | a246ce76 | Michele Tartara | -- | Scan the list of results produced by executeRpcCall and log all the RPC |
207 | a246ce76 | Michele Tartara | -- errors. |
208 | a246ce76 | Michele Tartara | logRpcErrors :: [(a, ERpcError b)] -> IO () |
209 | a246ce76 | Michele Tartara | logRpcErrors allElems = |
210 | a246ce76 | Michele Tartara | let logOneRpcErr (_, Right _) = return () |
211 | a246ce76 | Michele Tartara | logOneRpcErr (_, Left err) = |
212 | a246ce76 | Michele Tartara | logError $ "Error in the RPC HTTP reply: " ++ show err |
213 | a246ce76 | Michele Tartara | in mapM_ logOneRpcErr allElems |
214 | a246ce76 | Michele Tartara | |
215 | eaed5f19 | Agata Murawska | -- | Execute RPC call for many nodes in parallel. |
216 | 599239ad | Agata Murawska | executeRpcCall :: (Rpc a b) => [Node] -> a -> IO [(Node, ERpcError b)] |
217 | 85f6a869 | Iustin Pop | executeRpcCall nodes call = do |
218 | 85f6a869 | Iustin Pop | cert_file <- P.nodedCertFile |
219 | 85f6a869 | Iustin Pop | let opts = [ CurlTimeout (fromIntegral $ rpcCallTimeout call) |
220 | 85f6a869 | Iustin Pop | , CurlSSLCert cert_file |
221 | 85f6a869 | Iustin Pop | , CurlSSLKey cert_file |
222 | 85f6a869 | Iustin Pop | , CurlCAInfo cert_file |
223 | 85f6a869 | Iustin Pop | ] |
224 | 8920fa09 | Iustin Pop | opts_urls = map (\n -> |
225 | 8920fa09 | Iustin Pop | case prepareHttpRequest opts n call of |
226 | 8920fa09 | Iustin Pop | Left v -> Left v |
227 | 8920fa09 | Iustin Pop | Right request -> |
228 | 8920fa09 | Iustin Pop | Right (CurlPostFields [requestData request]: |
229 | 8920fa09 | Iustin Pop | requestOpts request, |
230 | 8920fa09 | Iustin Pop | requestUrl request) |
231 | 8920fa09 | Iustin Pop | ) nodes |
232 | 8920fa09 | Iustin Pop | -- split the opts_urls list; we don't want to pass the |
233 | 8920fa09 | Iustin Pop | -- failed-already nodes to Curl |
234 | 8920fa09 | Iustin Pop | let (lefts, rights, trail) = splitEithers opts_urls |
235 | 8920fa09 | Iustin Pop | results <- execMultiCall rights |
236 | 8920fa09 | Iustin Pop | results' <- case recombineEithers lefts results trail of |
237 | 8920fa09 | Iustin Pop | Bad msg -> error msg |
238 | 8920fa09 | Iustin Pop | Ok r -> return r |
239 | 8920fa09 | Iustin Pop | -- now parse the replies |
240 | 8920fa09 | Iustin Pop | let results'' = map (parseHttpReply call) results' |
241 | c393abbf | Michele Tartara | pairedList = zip nodes results'' |
242 | c393abbf | Michele Tartara | logRpcErrors pairedList |
243 | c393abbf | Michele Tartara | return pairedList |
244 | 96dad12d | Agata Murawska | |
245 | 9b09c0be | Agata Murawska | -- | Helper function that is used to read dictionaries of values. |
246 | 9b09c0be | Agata Murawska | sanitizeDictResults :: [(String, J.Result a)] -> ERpcError [(String, a)] |
247 | 3d3f562b | Agata Murawska | sanitizeDictResults = |
248 | 3d3f562b | Agata Murawska | foldr sanitize1 (Right []) |
249 | 3d3f562b | Agata Murawska | where |
250 | 3d3f562b | Agata Murawska | sanitize1 _ (Left e) = Left e |
251 | 3d3f562b | Agata Murawska | sanitize1 (_, J.Error e) _ = Left $ JsonDecodeError e |
252 | 3d3f562b | Agata Murawska | sanitize1 (name, J.Ok v) (Right res) = Right $ (name, v) : res |
253 | 9b09c0be | Agata Murawska | |
254 | 7328a28c | Agata Murawska | -- | Helper function to tranform JSON Result to Either RpcError b. |
255 | 7328a28c | Agata Murawska | -- Note: For now we really only use it for b s.t. Rpc c b for some c |
256 | 7328a28c | Agata Murawska | fromJResultToRes :: J.Result a -> (a -> b) -> ERpcError b |
257 | 7328a28c | Agata Murawska | fromJResultToRes (J.Error v) _ = Left $ JsonDecodeError v |
258 | 7328a28c | Agata Murawska | fromJResultToRes (J.Ok v) f = Right $ f v |
259 | 7328a28c | Agata Murawska | |
260 | 7328a28c | Agata Murawska | -- | Helper function transforming JSValue to Rpc result type. |
261 | 7328a28c | Agata Murawska | fromJSValueToRes :: (J.JSON a) => J.JSValue -> (a -> b) -> ERpcError b |
262 | 7328a28c | Agata Murawska | fromJSValueToRes val = fromJResultToRes (J.readJSON val) |
263 | 7328a28c | Agata Murawska | |
264 | 96dad12d | Agata Murawska | -- * RPC calls and results |
265 | 96dad12d | Agata Murawska | |
266 | de2a5704 | Iustin Pop | -- ** Instance info |
267 | de2a5704 | Iustin Pop | |
268 | 5188fdb7 | Agata Murawska | -- | InstanceInfo |
269 | 5188fdb7 | Agata Murawska | -- Returns information about a single instance. |
270 | 5188fdb7 | Agata Murawska | |
271 | 5188fdb7 | Agata Murawska | $(buildObject "RpcCallInstanceInfo" "rpcCallInstInfo" |
272 | 5188fdb7 | Agata Murawska | [ simpleField "instance" [t| String |] |
273 | 5188fdb7 | Agata Murawska | , simpleField "hname" [t| Hypervisor |] |
274 | 5188fdb7 | Agata Murawska | ]) |
275 | 96dad12d | Agata Murawska | |
276 | 5b11f8db | Iustin Pop | $(buildObject "InstanceInfo" "instInfo" |
277 | 9b09c0be | Agata Murawska | [ simpleField "memory" [t| Int|] |
278 | 9b09c0be | Agata Murawska | , simpleField "state" [t| String |] -- It depends on hypervisor :( |
279 | 96dad12d | Agata Murawska | , simpleField "vcpus" [t| Int |] |
280 | 96dad12d | Agata Murawska | , simpleField "time" [t| Int |] |
281 | 96dad12d | Agata Murawska | ]) |
282 | 96dad12d | Agata Murawska | |
283 | 5188fdb7 | Agata Murawska | -- This is optional here because the result may be empty if instance is |
284 | 5188fdb7 | Agata Murawska | -- not on a node - and this is not considered an error. |
285 | 5188fdb7 | Agata Murawska | $(buildObject "RpcResultInstanceInfo" "rpcResInstInfo" |
286 | 5188fdb7 | Agata Murawska | [ optionalField $ simpleField "inst_info" [t| InstanceInfo |]]) |
287 | 5188fdb7 | Agata Murawska | |
288 | 5188fdb7 | Agata Murawska | instance RpcCall RpcCallInstanceInfo where |
289 | 274366e5 | Agata Murawska | rpcCallName _ = "instance_info" |
290 | 274366e5 | Agata Murawska | rpcCallTimeout _ = rpcTimeoutToRaw Urgent |
291 | 5188fdb7 | Agata Murawska | rpcCallAcceptOffline _ = False |
292 | 274366e5 | Agata Murawska | rpcCallData _ call = J.encode |
293 | 5188fdb7 | Agata Murawska | ( rpcCallInstInfoInstance call |
294 | 5188fdb7 | Agata Murawska | , rpcCallInstInfoHname call |
295 | 5188fdb7 | Agata Murawska | ) |
296 | 5188fdb7 | Agata Murawska | |
297 | 5188fdb7 | Agata Murawska | instance Rpc RpcCallInstanceInfo RpcResultInstanceInfo where |
298 | 5188fdb7 | Agata Murawska | rpcResultFill _ res = |
299 | a93b711b | Agata Murawska | case res of |
300 | 5188fdb7 | Agata Murawska | J.JSObject res' -> |
301 | 5188fdb7 | Agata Murawska | case J.fromJSObject res' of |
302 | 5188fdb7 | Agata Murawska | [] -> Right $ RpcResultInstanceInfo Nothing |
303 | 7328a28c | Agata Murawska | _ -> fromJSValueToRes res (RpcResultInstanceInfo . Just) |
304 | 5188fdb7 | Agata Murawska | _ -> Left $ JsonDecodeError |
305 | 70c2362e | Agata Murawska | ("Expected JSObject, got " ++ show (pp_value res)) |
306 | 5188fdb7 | Agata Murawska | |
307 | de2a5704 | Iustin Pop | -- ** AllInstancesInfo |
308 | de2a5704 | Iustin Pop | |
309 | 5188fdb7 | Agata Murawska | -- | AllInstancesInfo |
310 | 5188fdb7 | Agata Murawska | -- Returns information about all running instances on the given nodes |
311 | 5188fdb7 | Agata Murawska | $(buildObject "RpcCallAllInstancesInfo" "rpcCallAllInstInfo" |
312 | 5188fdb7 | Agata Murawska | [ simpleField "hypervisors" [t| [Hypervisor] |] ]) |
313 | 5188fdb7 | Agata Murawska | |
314 | 5b11f8db | Iustin Pop | $(buildObject "RpcResultAllInstancesInfo" "rpcResAllInstInfo" |
315 | 9b09c0be | Agata Murawska | [ simpleField "instances" [t| [(String, InstanceInfo)] |] ]) |
316 | 96dad12d | Agata Murawska | |
317 | 96dad12d | Agata Murawska | instance RpcCall RpcCallAllInstancesInfo where |
318 | 274366e5 | Agata Murawska | rpcCallName _ = "all_instances_info" |
319 | 274366e5 | Agata Murawska | rpcCallTimeout _ = rpcTimeoutToRaw Urgent |
320 | 96dad12d | Agata Murawska | rpcCallAcceptOffline _ = False |
321 | 274366e5 | Agata Murawska | rpcCallData _ call = J.encode [rpcCallAllInstInfoHypervisors call] |
322 | 9b09c0be | Agata Murawska | |
323 | 47163f0f | Agata Murawska | instance Rpc RpcCallAllInstancesInfo RpcResultAllInstancesInfo where |
324 | 9b09c0be | Agata Murawska | -- FIXME: Is there a simpler way to do it? |
325 | 47163f0f | Agata Murawska | rpcResultFill _ res = |
326 | a93b711b | Agata Murawska | case res of |
327 | a93b711b | Agata Murawska | J.JSObject res' -> |
328 | 9b09c0be | Agata Murawska | let res'' = map (second J.readJSON) (J.fromJSObject res') |
329 | a93b711b | Agata Murawska | :: [(String, J.Result InstanceInfo)] in |
330 | 9b09c0be | Agata Murawska | case sanitizeDictResults res'' of |
331 | 9b09c0be | Agata Murawska | Left err -> Left err |
332 | 9b09c0be | Agata Murawska | Right insts -> Right $ RpcResultAllInstancesInfo insts |
333 | 9b09c0be | Agata Murawska | _ -> Left $ JsonDecodeError |
334 | 70c2362e | Agata Murawska | ("Expected JSObject, got " ++ show (pp_value res)) |
335 | 96dad12d | Agata Murawska | |
336 | de2a5704 | Iustin Pop | -- ** InstanceList |
337 | de2a5704 | Iustin Pop | |
338 | c1c5aab1 | Agata Murawska | -- | InstanceList |
339 | c1c5aab1 | Agata Murawska | -- Returns the list of running instances on the given nodes. |
340 | 5b11f8db | Iustin Pop | $(buildObject "RpcCallInstanceList" "rpcCallInstList" |
341 | c1c5aab1 | Agata Murawska | [ simpleField "hypervisors" [t| [Hypervisor] |] ]) |
342 | c1c5aab1 | Agata Murawska | |
343 | 5b11f8db | Iustin Pop | $(buildObject "RpcResultInstanceList" "rpcResInstList" |
344 | 9b09c0be | Agata Murawska | [ simpleField "instances" [t| [String] |] ]) |
345 | c1c5aab1 | Agata Murawska | |
346 | c1c5aab1 | Agata Murawska | instance RpcCall RpcCallInstanceList where |
347 | 274366e5 | Agata Murawska | rpcCallName _ = "instance_list" |
348 | 274366e5 | Agata Murawska | rpcCallTimeout _ = rpcTimeoutToRaw Urgent |
349 | c1c5aab1 | Agata Murawska | rpcCallAcceptOffline _ = False |
350 | 274366e5 | Agata Murawska | rpcCallData _ call = J.encode [rpcCallInstListHypervisors call] |
351 | c1c5aab1 | Agata Murawska | |
352 | 47163f0f | Agata Murawska | instance Rpc RpcCallInstanceList RpcResultInstanceList where |
353 | 7328a28c | Agata Murawska | rpcResultFill _ res = fromJSValueToRes res RpcResultInstanceList |
354 | c1c5aab1 | Agata Murawska | |
355 | de2a5704 | Iustin Pop | -- ** NodeInfo |
356 | de2a5704 | Iustin Pop | |
357 | dc623a95 | Agata Murawska | -- | NodeInfo |
358 | dc623a95 | Agata Murawska | -- Return node information. |
359 | 5b11f8db | Iustin Pop | $(buildObject "RpcCallNodeInfo" "rpcCallNodeInfo" |
360 | 9b09c0be | Agata Murawska | [ simpleField "volume_groups" [t| [String] |] |
361 | 9b09c0be | Agata Murawska | , simpleField "hypervisors" [t| [Hypervisor] |] |
362 | 319322a7 | Bernardo Dal Seno | , simpleField "exclusive_storage" [t| Map.Map String Bool |] |
363 | dc623a95 | Agata Murawska | ]) |
364 | dc623a95 | Agata Murawska | |
365 | 5b11f8db | Iustin Pop | $(buildObject "VgInfo" "vgInfo" |
366 | dc623a95 | Agata Murawska | [ simpleField "name" [t| String |] |
367 | 9b09c0be | Agata Murawska | , optionalField $ simpleField "vg_free" [t| Int |] |
368 | 9b09c0be | Agata Murawska | , optionalField $ simpleField "vg_size" [t| Int |] |
369 | dc623a95 | Agata Murawska | ]) |
370 | dc623a95 | Agata Murawska | |
371 | dc623a95 | Agata Murawska | -- | We only provide common fields as described in hv_base.py. |
372 | 5b11f8db | Iustin Pop | $(buildObject "HvInfo" "hvInfo" |
373 | dc623a95 | Agata Murawska | [ simpleField "memory_total" [t| Int |] |
374 | dc623a95 | Agata Murawska | , simpleField "memory_free" [t| Int |] |
375 | dc623a95 | Agata Murawska | , simpleField "memory_dom0" [t| Int |] |
376 | dc623a95 | Agata Murawska | , simpleField "cpu_total" [t| Int |] |
377 | dc623a95 | Agata Murawska | , simpleField "cpu_nodes" [t| Int |] |
378 | dc623a95 | Agata Murawska | , simpleField "cpu_sockets" [t| Int |] |
379 | dc623a95 | Agata Murawska | ]) |
380 | dc623a95 | Agata Murawska | |
381 | 5b11f8db | Iustin Pop | $(buildObject "RpcResultNodeInfo" "rpcResNodeInfo" |
382 | dc623a95 | Agata Murawska | [ simpleField "boot_id" [t| String |] |
383 | dc623a95 | Agata Murawska | , simpleField "vg_info" [t| [VgInfo] |] |
384 | dc623a95 | Agata Murawska | , simpleField "hv_info" [t| [HvInfo] |] |
385 | dc623a95 | Agata Murawska | ]) |
386 | dc623a95 | Agata Murawska | |
387 | dc623a95 | Agata Murawska | instance RpcCall RpcCallNodeInfo where |
388 | 274366e5 | Agata Murawska | rpcCallName _ = "node_info" |
389 | 274366e5 | Agata Murawska | rpcCallTimeout _ = rpcTimeoutToRaw Urgent |
390 | dc623a95 | Agata Murawska | rpcCallAcceptOffline _ = False |
391 | 319322a7 | Bernardo Dal Seno | rpcCallData n call = J.encode |
392 | 274366e5 | Agata Murawska | ( rpcCallNodeInfoVolumeGroups call |
393 | 274366e5 | Agata Murawska | , rpcCallNodeInfoHypervisors call |
394 | 319322a7 | Bernardo Dal Seno | , fromMaybe (error $ "Programmer error: missing parameter for node named " |
395 | 319322a7 | Bernardo Dal Seno | ++ nodeName n) |
396 | 319322a7 | Bernardo Dal Seno | $ Map.lookup (nodeName n) (rpcCallNodeInfoExclusiveStorage call) |
397 | 274366e5 | Agata Murawska | ) |
398 | 9b09c0be | Agata Murawska | |
399 | 47163f0f | Agata Murawska | instance Rpc RpcCallNodeInfo RpcResultNodeInfo where |
400 | 47163f0f | Agata Murawska | rpcResultFill _ res = |
401 | 7328a28c | Agata Murawska | fromJSValueToRes res (\(b, vg, hv) -> RpcResultNodeInfo b vg hv) |
402 | dc623a95 | Agata Murawska | |
403 | de2a5704 | Iustin Pop | -- ** Version |
404 | de2a5704 | Iustin Pop | |
405 | 08f7d24d | Iustin Pop | -- | Query node version. |
406 | 08f7d24d | Iustin Pop | $(buildObject "RpcCallVersion" "rpcCallVersion" []) |
407 | 8779d21a | Agata Murawska | |
408 | 08f7d24d | Iustin Pop | -- | Query node reply. |
409 | 8779d21a | Agata Murawska | $(buildObject "RpcResultVersion" "rpcResultVersion" |
410 | 8779d21a | Agata Murawska | [ simpleField "version" [t| Int |] |
411 | 8779d21a | Agata Murawska | ]) |
412 | 8779d21a | Agata Murawska | |
413 | 8779d21a | Agata Murawska | instance RpcCall RpcCallVersion where |
414 | 274366e5 | Agata Murawska | rpcCallName _ = "version" |
415 | 274366e5 | Agata Murawska | rpcCallTimeout _ = rpcTimeoutToRaw Urgent |
416 | 8779d21a | Agata Murawska | rpcCallAcceptOffline _ = True |
417 | ff8f0049 | Iustin Pop | rpcCallData _ = J.encode |
418 | 8779d21a | Agata Murawska | |
419 | 47163f0f | Agata Murawska | instance Rpc RpcCallVersion RpcResultVersion where |
420 | 7328a28c | Agata Murawska | rpcResultFill _ res = fromJSValueToRes res RpcResultVersion |
421 | 8779d21a | Agata Murawska | |
422 | de2a5704 | Iustin Pop | -- ** StorageList |
423 | de2a5704 | Iustin Pop | |
424 | 47163f0f | Agata Murawska | -- | StorageList |
425 | 47163f0f | Agata Murawska | |
426 | 47163f0f | Agata Murawska | -- FIXME: This may be moved to Objects |
427 | 47163f0f | Agata Murawska | $(declareSADT "StorageField" |
428 | 47163f0f | Agata Murawska | [ ( "SFUsed", 'C.sfUsed) |
429 | 47163f0f | Agata Murawska | , ( "SFName", 'C.sfName) |
430 | 47163f0f | Agata Murawska | , ( "SFAllocatable", 'C.sfAllocatable) |
431 | 47163f0f | Agata Murawska | , ( "SFFree", 'C.sfFree) |
432 | 47163f0f | Agata Murawska | , ( "SFSize", 'C.sfSize) |
433 | 47163f0f | Agata Murawska | ]) |
434 | 47163f0f | Agata Murawska | $(makeJSONInstance ''StorageField) |
435 | 47163f0f | Agata Murawska | |
436 | 47163f0f | Agata Murawska | $(buildObject "RpcCallStorageList" "rpcCallStorageList" |
437 | 47163f0f | Agata Murawska | [ simpleField "su_name" [t| StorageType |] |
438 | 47163f0f | Agata Murawska | , simpleField "su_args" [t| [String] |] |
439 | 47163f0f | Agata Murawska | , simpleField "name" [t| String |] |
440 | 47163f0f | Agata Murawska | , simpleField "fields" [t| [StorageField] |] |
441 | 47163f0f | Agata Murawska | ]) |
442 | 47163f0f | Agata Murawska | |
443 | 47163f0f | Agata Murawska | -- FIXME: The resulting JSValues should have types appropriate for their |
444 | 47163f0f | Agata Murawska | -- StorageField value: Used -> Bool, Name -> String etc |
445 | 47163f0f | Agata Murawska | $(buildObject "RpcResultStorageList" "rpcResStorageList" |
446 | 47163f0f | Agata Murawska | [ simpleField "storage" [t| [[(StorageField, J.JSValue)]] |] ]) |
447 | 47163f0f | Agata Murawska | |
448 | 47163f0f | Agata Murawska | instance RpcCall RpcCallStorageList where |
449 | 274366e5 | Agata Murawska | rpcCallName _ = "storage_list" |
450 | 274366e5 | Agata Murawska | rpcCallTimeout _ = rpcTimeoutToRaw Normal |
451 | 47163f0f | Agata Murawska | rpcCallAcceptOffline _ = False |
452 | 274366e5 | Agata Murawska | rpcCallData _ call = J.encode |
453 | 47163f0f | Agata Murawska | ( rpcCallStorageListSuName call |
454 | 47163f0f | Agata Murawska | , rpcCallStorageListSuArgs call |
455 | 47163f0f | Agata Murawska | , rpcCallStorageListName call |
456 | 47163f0f | Agata Murawska | , rpcCallStorageListFields call |
457 | 47163f0f | Agata Murawska | ) |
458 | 47163f0f | Agata Murawska | |
459 | 47163f0f | Agata Murawska | instance Rpc RpcCallStorageList RpcResultStorageList where |
460 | 47163f0f | Agata Murawska | rpcResultFill call res = |
461 | 47163f0f | Agata Murawska | let sfields = rpcCallStorageListFields call in |
462 | 7328a28c | Agata Murawska | fromJSValueToRes res (RpcResultStorageList . map (zip sfields)) |
463 | de2a5704 | Iustin Pop | |
464 | de2a5704 | Iustin Pop | -- ** TestDelay |
465 | de2a5704 | Iustin Pop | |
466 | de2a5704 | Iustin Pop | -- | Call definition for test delay. |
467 | de2a5704 | Iustin Pop | $(buildObject "RpcCallTestDelay" "rpcCallTestDelay" |
468 | de2a5704 | Iustin Pop | [ simpleField "duration" [t| Double |] |
469 | de2a5704 | Iustin Pop | ]) |
470 | de2a5704 | Iustin Pop | |
471 | de2a5704 | Iustin Pop | -- | Result definition for test delay. |
472 | de2a5704 | Iustin Pop | data RpcResultTestDelay = RpcResultTestDelay |
473 | de2a5704 | Iustin Pop | deriving Show |
474 | de2a5704 | Iustin Pop | |
475 | de2a5704 | Iustin Pop | -- | Custom JSON instance for null result. |
476 | de2a5704 | Iustin Pop | instance J.JSON RpcResultTestDelay where |
477 | de2a5704 | Iustin Pop | showJSON _ = J.JSNull |
478 | de2a5704 | Iustin Pop | readJSON J.JSNull = return RpcResultTestDelay |
479 | de2a5704 | Iustin Pop | readJSON _ = fail "Unable to read RpcResultTestDelay" |
480 | de2a5704 | Iustin Pop | |
481 | de2a5704 | Iustin Pop | instance RpcCall RpcCallTestDelay where |
482 | de2a5704 | Iustin Pop | rpcCallName _ = "test_delay" |
483 | de2a5704 | Iustin Pop | rpcCallTimeout = ceiling . (+ 5) . rpcCallTestDelayDuration |
484 | de2a5704 | Iustin Pop | rpcCallAcceptOffline _ = False |
485 | de2a5704 | Iustin Pop | rpcCallData _ call = J.encode [rpcCallTestDelayDuration call] |
486 | de2a5704 | Iustin Pop | |
487 | de2a5704 | Iustin Pop | instance Rpc RpcCallTestDelay RpcResultTestDelay where |
488 | de2a5704 | Iustin Pop | rpcResultFill _ res = fromJSValueToRes res id |
489 | 842515dd | Iustin Pop | |
490 | 842515dd | Iustin Pop | -- ** ExportList |
491 | 842515dd | Iustin Pop | |
492 | 842515dd | Iustin Pop | -- | Call definition for export list. |
493 | 842515dd | Iustin Pop | |
494 | 842515dd | Iustin Pop | $(buildObject "RpcCallExportList" "rpcCallExportList" []) |
495 | 842515dd | Iustin Pop | |
496 | 842515dd | Iustin Pop | -- | Result definition for export list. |
497 | 842515dd | Iustin Pop | $(buildObject "RpcResultExportList" "rpcResExportList" |
498 | 842515dd | Iustin Pop | [ simpleField "exports" [t| [String] |] |
499 | 842515dd | Iustin Pop | ]) |
500 | 842515dd | Iustin Pop | |
501 | 842515dd | Iustin Pop | instance RpcCall RpcCallExportList where |
502 | 842515dd | Iustin Pop | rpcCallName _ = "export_list" |
503 | 842515dd | Iustin Pop | rpcCallTimeout _ = rpcTimeoutToRaw Fast |
504 | 842515dd | Iustin Pop | rpcCallAcceptOffline _ = False |
505 | 842515dd | Iustin Pop | rpcCallData _ = J.encode |
506 | 842515dd | Iustin Pop | |
507 | 842515dd | Iustin Pop | instance Rpc RpcCallExportList RpcResultExportList where |
508 | 842515dd | Iustin Pop | rpcResultFill _ res = fromJSValueToRes res RpcResultExportList |