-{-| Scan clusters via RAPI and write instance/node data files.
+{-# LANGUAGE CPP #-}
+
+{-| Scan clusters via RAPI or LUXI and write state data files.
-}
{-
-Copyright (C) 2009 Google Inc.
+Copyright (C) 2009, 2010 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
module Main (main) where
-import Data.List
-import Data.Function
+import Data.Maybe (isJust, fromJust, fromMaybe)
import Monad
-import System
+import System (exitWith, ExitCode(..))
import System.IO
import System.FilePath
-import System.Console.GetOpt
import qualified System
import Text.Printf (printf)
import qualified Ganeti.HTools.Cluster as Cluster
import qualified Ganeti.HTools.Node as Node
import qualified Ganeti.HTools.Instance as Instance
-import qualified Ganeti.HTools.CLI as CLI
+#ifndef NO_CURL
import qualified Ganeti.HTools.Rapi as Rapi
+#endif
+import qualified Ganeti.HTools.Luxi as Luxi
import qualified Ganeti.HTools.Loader as Loader
-import Ganeti.HTools.Types
+import Ganeti.HTools.Text (serializeCluster)
--- | Command line options structure.
-data Options = Options
- { optShowNodes :: Bool -- ^ Whether to show node status
- , optOutPath :: FilePath -- ^ Path to the output directory
- , optVerbose :: Int -- ^ Verbosity level
- , optNoHeader :: Bool -- ^ Do not show a header line
- , optShowVer :: Bool -- ^ Just show the program version
- , optShowHelp :: Bool -- ^ Just show the help
- } deriving Show
-
-instance CLI.CLIOptions Options where
- showVersion = optShowVer
- showHelp = optShowHelp
-
--- | Default values for the command line options.
-defaultOptions :: Options
-defaultOptions = Options
- { optShowNodes = False
- , optOutPath = "."
- , optVerbose = 0
- , optNoHeader = False
- , optShowVer = False
- , optShowHelp = False
- }
+import Ganeti.HTools.CLI
+import Ganeti.HTools.Types
-- | Options list and functions
-options :: [OptDescr (Options -> Options)]
+options :: [OptType]
options =
- [ Option ['p'] ["print-nodes"]
- (NoArg (\ opts -> opts { optShowNodes = True }))
- "print the final node list"
- , Option ['d'] ["output-dir"]
- (ReqArg (\ d opts -> opts { optOutPath = d }) "PATH")
- "directory in which to write output files"
- , Option ['v'] ["verbose"]
- (NoArg (\ opts -> opts { optVerbose = (optVerbose opts) + 1 }))
- "increase the verbosity level"
- , Option [] ["no-headers"]
- (NoArg (\ opts -> opts { optNoHeader = True }))
- "do not show a header line"
- , Option ['V'] ["version"]
- (NoArg (\ opts -> opts { optShowVer = True}))
- "show the version of the program"
- , Option ['h'] ["help"]
- (NoArg (\ opts -> opts { optShowHelp = True}))
- "show help"
+ [ oPrintNodes
+ , oOutputDir
+ , oLuxiSocket
+ , oVerbose
+ , oNoHeaders
+ , oShowVer
+ , oShowHelp
]
--- | Serialize a single node
-serializeNode :: String -> Node.Node -> String
-serializeNode csf node =
- let name = Node.name node ++ csf
- t_mem = (truncate $ Node.t_mem node)::Int
- t_dsk = (truncate $ Node.t_dsk node)::Int
- in
- printf "%s|%d|%d|%d|%d|%d|%c" name
- t_mem (Node.n_mem node) (Node.f_mem node)
- t_dsk (Node.f_dsk node)
- (if Node.offline node then 'Y' else 'N')
-
--- | Generate node file data from node objects
-serializeNodes :: String -> Node.List -> String
-serializeNodes csf =
- unlines . map (serializeNode csf) . Container.elems
-
--- | Serialize a single instance
-serializeInstance :: String -> Node.List -> Instance.Instance -> String
-serializeInstance csf nl inst =
- let
- iname = Instance.name inst ++ csf
- pnode = Container.nameOf nl $ Instance.pnode inst
- snode = Container.nameOf nl $ Instance.snode inst
- in
- printf "%s|%d|%d|%s|%s|%s"
- iname (Instance.mem inst) (Instance.dsk inst)
- (Instance.run_st inst)
- pnode snode
-
--- | Generate instance file data from instance objects
-serializeInstances :: String -> Node.List -> Instance.List -> String
-serializeInstances csf nl =
- unlines . map (serializeInstance csf nl) . Container.elems
-
-- | Return a one-line summary of cluster state
printCluster :: Node.List -> Instance.List
-> String
ccv = Cluster.compCV nl
nodes = Container.elems nl
insts = Container.elems il
- t_ram = sum . map Node.t_mem $ nodes
- t_dsk = sum . map Node.t_dsk $ nodes
- f_ram = sum . map Node.f_mem $ nodes
- f_dsk = sum . map Node.f_dsk $ nodes
+ t_ram = sum . map Node.tMem $ nodes
+ t_dsk = sum . map Node.tDsk $ nodes
+ f_ram = sum . map Node.fMem $ nodes
+ f_dsk = sum . map Node.fDsk $ nodes
in
printf "%5d %5d %5d %5d %6.0f %6d %6.0f %6d %.8f"
(length nodes) (length insts)
-- | Replace slashes with underscore for saving to filesystem
-
fixSlash :: String -> String
fixSlash = map (\x -> if x == '/' then '_' else x)
+
+-- | Generates serialized data from loader input
+processData :: Result (Node.AssocList, Instance.AssocList, [String])
+ -> Result (Node.List, Instance.List, String)
+processData input_data = do
+ (nl, il, _) <- input_data >>= Loader.mergeData [] [] []
+ let (_, fix_nl) = Loader.checkData nl il
+ adata = serializeCluster nl il
+ return (fix_nl, il, adata)
+
+-- | Writes cluster data out
+writeData :: Int
+ -> String
+ -> Options
+ -> Result (Node.List, Instance.List, String)
+ -> IO Bool
+writeData _ name _ (Bad err) =
+ printf "\nError for %s: failed to load data. Details:\n%s\n" name err >>
+ return False
+
+writeData nlen name opts (Ok (nl, il, adata)) = do
+ printf "%-*s " nlen name :: IO ()
+ hFlush stdout
+ let shownodes = optShowNodes opts
+ odir = optOutPath opts
+ oname = odir </> fixSlash name
+ putStrLn $ printCluster nl il
+ hFlush stdout
+ when (isJust shownodes) $
+ putStr $ Cluster.printNodes nl (fromJust shownodes)
+ writeFile (oname <.> "data") adata
+ return True
+
-- | Main function.
main :: IO ()
main = do
cmd_args <- System.getArgs
- (opts, clusters) <- CLI.parseOpts cmd_args "hscan" options
- defaultOptions
+ (opts, clusters) <- parseOpts cmd_args "hscan" options
+ let local = "LOCAL"
- let odir = optOutPath opts
- nlen = maximum . map length $ clusters
+ let nlen = if null clusters
+ then length local
+ else maximum . map length $ clusters
- unless (optNoHeader opts) $
+ unless (optNoHeaders opts) $
printf "%-*s %5s %5s %5s %5s %6s %6s %6s %6s %10s\n" nlen
"Name" "Nodes" "Inst" "BNode" "BInst" "t_mem" "f_mem"
"t_disk" "f_disk" "Score"
- mapM_ (\ name ->
- do
- printf "%-*s " nlen name
- hFlush stdout
- input_data <- Rapi.loadData name
- let ldresult = input_data >>= Loader.mergeData
- (case ldresult of
- Bad err -> printf "\nError: failed to load data. \
- \Details:\n%s\n" err
- Ok x -> do
- let (nl, il, csf) = x
- (_, fix_nl) = Loader.checkData nl il
- putStrLn $ printCluster fix_nl il
- when (optShowNodes opts) $ do
- putStr $ Cluster.printNodes fix_nl
- let ndata = serializeNodes csf nl
- idata = serializeInstances csf nl il
- oname = odir </> (fixSlash name)
- writeFile (oname <.> "nodes") ndata
- writeFile (oname <.> "instances") idata)
- ) clusters
+ when (null clusters) $ do
+ let lsock = fromMaybe defaultLuxiSocket (optLuxi opts)
+ let name = local
+ input_data <- Luxi.loadData lsock
+ result <- writeData nlen name opts (processData input_data)
+ when (not result) $ exitWith $ ExitFailure 2
+
+#ifndef NO_CURL
+ results <- mapM (\ name ->
+ do
+ input_data <- Rapi.loadData name
+ writeData nlen name opts (processData input_data)
+ ) clusters
+ when (not $ all id results) $ exitWith (ExitFailure 2)
+#else
+ when (not $ null clusters) $ do
+ putStrLn "RAPI/curl backend disabled at compile time, cannot scan clusters"
+ exitWith $ ExitFailure 1
+#endif
projects / ganeti-local / blobdiff