root / src / Ganeti / HTools / Program / Hscan.hs @ 7ec2f76b
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1 | ba9349b8 | Iustin Pop | {-| Scan clusters via RAPI or LUXI and write state data files. |
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2 | 1b7a5835 | Iustin Pop | |
3 | 1b7a5835 | Iustin Pop | -} |
4 | 1b7a5835 | Iustin Pop | |
5 | e2fa2baf | Iustin Pop | {- |
6 | e2fa2baf | Iustin Pop | |
7 | 21839f47 | Iustin Pop | Copyright (C) 2009, 2010, 2011, 2012 Google Inc. |
8 | e2fa2baf | Iustin Pop | |
9 | e2fa2baf | Iustin Pop | This program is free software; you can redistribute it and/or modify |
10 | e2fa2baf | Iustin Pop | it under the terms of the GNU General Public License as published by |
11 | e2fa2baf | Iustin Pop | the Free Software Foundation; either version 2 of the License, or |
12 | e2fa2baf | Iustin Pop | (at your option) any later version. |
13 | e2fa2baf | Iustin Pop | |
14 | e2fa2baf | Iustin Pop | This program is distributed in the hope that it will be useful, but |
15 | e2fa2baf | Iustin Pop | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | e2fa2baf | Iustin Pop | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 | e2fa2baf | Iustin Pop | General Public License for more details. |
18 | e2fa2baf | Iustin Pop | |
19 | e2fa2baf | Iustin Pop | You should have received a copy of the GNU General Public License |
20 | e2fa2baf | Iustin Pop | along with this program; if not, write to the Free Software |
21 | e2fa2baf | Iustin Pop | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
22 | e2fa2baf | Iustin Pop | 02110-1301, USA. |
23 | e2fa2baf | Iustin Pop | |
24 | e2fa2baf | Iustin Pop | -} |
25 | e2fa2baf | Iustin Pop | |
26 | 22278fa7 | Iustin Pop | module Ganeti.HTools.Program.Hscan |
27 | 22278fa7 | Iustin Pop | ( main |
28 | 22278fa7 | Iustin Pop | , options |
29 | 22278fa7 | Iustin Pop | , arguments |
30 | 22278fa7 | Iustin Pop | ) where |
31 | 1b7a5835 | Iustin Pop | |
32 | cc532bdd | Iustin Pop | import Control.Monad |
33 | 5182e970 | Iustin Pop | import Data.Maybe (isJust, fromJust, fromMaybe) |
34 | 7345b69b | Iustin Pop | import System.Exit |
35 | 1b7a5835 | Iustin Pop | import System.IO |
36 | 1b7a5835 | Iustin Pop | import System.FilePath |
37 | 1b7a5835 | Iustin Pop | |
38 | 1b7a5835 | Iustin Pop | import Text.Printf (printf) |
39 | 1b7a5835 | Iustin Pop | |
40 | 01e52493 | Iustin Pop | import Ganeti.BasicTypes |
41 | 1b7a5835 | Iustin Pop | import qualified Ganeti.HTools.Container as Container |
42 | 1b7a5835 | Iustin Pop | import qualified Ganeti.HTools.Cluster as Cluster |
43 | 1b7a5835 | Iustin Pop | import qualified Ganeti.HTools.Node as Node |
44 | 1b7a5835 | Iustin Pop | import qualified Ganeti.HTools.Instance as Instance |
45 | 879d9290 | Iustin Pop | import qualified Ganeti.HTools.Backend.Rapi as Rapi |
46 | 879d9290 | Iustin Pop | import qualified Ganeti.HTools.Backend.Luxi as Luxi |
47 | 9eeb0aa5 | Michael Hanselmann | import qualified Ganeti.Path as Path |
48 | 017a0c3d | Iustin Pop | import Ganeti.HTools.Loader (checkData, mergeData, ClusterData(..)) |
49 | 879d9290 | Iustin Pop | import Ganeti.HTools.Backend.Text (serializeCluster) |
50 | 1b7a5835 | Iustin Pop | |
51 | 22278fa7 | Iustin Pop | import Ganeti.Common |
52 | 0427285d | Iustin Pop | import Ganeti.HTools.CLI |
53 | 1b7a5835 | Iustin Pop | |
54 | 179c0828 | Iustin Pop | -- | Options list and functions. |
55 | d66aa238 | Iustin Pop | options :: IO [OptType] |
56 | 29a30533 | Iustin Pop | options = do |
57 | 29a30533 | Iustin Pop | luxi <- oLuxiSocket |
58 | d66aa238 | Iustin Pop | return |
59 | d66aa238 | Iustin Pop | [ oPrintNodes |
60 | d66aa238 | Iustin Pop | , oOutputDir |
61 | 29a30533 | Iustin Pop | , luxi |
62 | d66aa238 | Iustin Pop | , oVerbose |
63 | d66aa238 | Iustin Pop | , oNoHeaders |
64 | d66aa238 | Iustin Pop | ] |
65 | 1b7a5835 | Iustin Pop | |
66 | 22278fa7 | Iustin Pop | -- | The list of arguments supported by the program. |
67 | 22278fa7 | Iustin Pop | arguments :: [ArgCompletion] |
68 | 22278fa7 | Iustin Pop | arguments = [ArgCompletion OptComplHost 0 Nothing] |
69 | 22278fa7 | Iustin Pop | |
70 | 179c0828 | Iustin Pop | -- | Return a one-line summary of cluster state. |
71 | 262a08a2 | Iustin Pop | printCluster :: Node.List -> Instance.List |
72 | 1b7a5835 | Iustin Pop | -> String |
73 | dbd6700b | Iustin Pop | printCluster nl il = |
74 | ebf38064 | Iustin Pop | let (bad_nodes, bad_instances) = Cluster.computeBadItems nl il |
75 | ebf38064 | Iustin Pop | ccv = Cluster.compCV nl |
76 | ebf38064 | Iustin Pop | nodes = Container.elems nl |
77 | ebf38064 | Iustin Pop | insts = Container.elems il |
78 | ebf38064 | Iustin Pop | t_ram = sum . map Node.tMem $ nodes |
79 | ebf38064 | Iustin Pop | t_dsk = sum . map Node.tDsk $ nodes |
80 | ebf38064 | Iustin Pop | f_ram = sum . map Node.fMem $ nodes |
81 | ebf38064 | Iustin Pop | f_dsk = sum . map Node.fDsk $ nodes |
82 | ebf38064 | Iustin Pop | in printf "%5d %5d %5d %5d %6.0f %6d %6.0f %6d %.8f" |
83 | ebf38064 | Iustin Pop | (length nodes) (length insts) |
84 | ebf38064 | Iustin Pop | (length bad_nodes) (length bad_instances) |
85 | ebf38064 | Iustin Pop | t_ram f_ram (t_dsk / 1024) (f_dsk `div` 1024) ccv |
86 | 1b7a5835 | Iustin Pop | |
87 | 179c0828 | Iustin Pop | -- | Replace slashes with underscore for saving to filesystem. |
88 | 0944090a | Iustin Pop | fixSlash :: String -> String |
89 | 0944090a | Iustin Pop | fixSlash = map (\x -> if x == '/' then '_' else x) |
90 | 0944090a | Iustin Pop | |
91 | 86ea20e8 | Iustin Pop | -- | Generates serialized data from loader input. |
92 | 693342ad | Iustin Pop | processData :: ClusterData -> Result ClusterData |
93 | ba9349b8 | Iustin Pop | processData input_data = do |
94 | 71375ef7 | Iustin Pop | cdata@(ClusterData _ nl il _ _) <- mergeData [] [] [] [] input_data |
95 | 017a0c3d | Iustin Pop | let (_, fix_nl) = checkData nl il |
96 | 86ea20e8 | Iustin Pop | return cdata { cdNodes = fix_nl } |
97 | ba9349b8 | Iustin Pop | |
98 | 179c0828 | Iustin Pop | -- | Writes cluster data out. |
99 | ba9349b8 | Iustin Pop | writeData :: Int |
100 | ba9349b8 | Iustin Pop | -> String |
101 | ba9349b8 | Iustin Pop | -> Options |
102 | 86ea20e8 | Iustin Pop | -> Result ClusterData |
103 | f688711c | Iustin Pop | -> IO Bool |
104 | ba9349b8 | Iustin Pop | writeData _ name _ (Bad err) = |
105 | f688711c | Iustin Pop | printf "\nError for %s: failed to load data. Details:\n%s\n" name err >> |
106 | f688711c | Iustin Pop | return False |
107 | ba9349b8 | Iustin Pop | |
108 | 86ea20e8 | Iustin Pop | writeData nlen name opts (Ok cdata) = do |
109 | 693342ad | Iustin Pop | let fixdata = processData cdata |
110 | 693342ad | Iustin Pop | case fixdata of |
111 | 693342ad | Iustin Pop | Bad err -> printf "\nError for %s: failed to process data. Details:\n%s\n" |
112 | 693342ad | Iustin Pop | name err >> return False |
113 | 693342ad | Iustin Pop | Ok processed -> writeDataInner nlen name opts cdata processed |
114 | 693342ad | Iustin Pop | |
115 | 179c0828 | Iustin Pop | -- | Inner function for writing cluster data to disk. |
116 | 693342ad | Iustin Pop | writeDataInner :: Int |
117 | 693342ad | Iustin Pop | -> String |
118 | 693342ad | Iustin Pop | -> Options |
119 | 693342ad | Iustin Pop | -> ClusterData |
120 | 693342ad | Iustin Pop | -> ClusterData |
121 | 693342ad | Iustin Pop | -> IO Bool |
122 | 693342ad | Iustin Pop | writeDataInner nlen name opts cdata fixdata = do |
123 | 71375ef7 | Iustin Pop | let (ClusterData _ nl il _ _) = fixdata |
124 | c939b58e | Iustin Pop | printf "%-*s " nlen name :: IO () |
125 | ba9349b8 | Iustin Pop | hFlush stdout |
126 | ba9349b8 | Iustin Pop | let shownodes = optShowNodes opts |
127 | ba9349b8 | Iustin Pop | odir = optOutPath opts |
128 | ba9349b8 | Iustin Pop | oname = odir </> fixSlash name |
129 | ba9349b8 | Iustin Pop | putStrLn $ printCluster nl il |
130 | ba9349b8 | Iustin Pop | hFlush stdout |
131 | 2cdaf225 | Iustin Pop | when (isJust shownodes) . |
132 | ba9349b8 | Iustin Pop | putStr $ Cluster.printNodes nl (fromJust shownodes) |
133 | 86ea20e8 | Iustin Pop | writeFile (oname <.> "data") (serializeCluster cdata) |
134 | f688711c | Iustin Pop | return True |
135 | ba9349b8 | Iustin Pop | |
136 | 1b7a5835 | Iustin Pop | -- | Main function. |
137 | 21839f47 | Iustin Pop | main :: Options -> [String] -> IO () |
138 | 21839f47 | Iustin Pop | main opts clusters = do |
139 | ba9349b8 | Iustin Pop | let local = "LOCAL" |
140 | 1b7a5835 | Iustin Pop | |
141 | ba9349b8 | Iustin Pop | let nlen = if null clusters |
142 | ba9349b8 | Iustin Pop | then length local |
143 | ba9349b8 | Iustin Pop | else maximum . map length $ clusters |
144 | 1b7a5835 | Iustin Pop | |
145 | 0427285d | Iustin Pop | unless (optNoHeaders opts) $ |
146 | 1b7a5835 | Iustin Pop | printf "%-*s %5s %5s %5s %5s %6s %6s %6s %6s %10s\n" nlen |
147 | 1b7a5835 | Iustin Pop | "Name" "Nodes" "Inst" "BNode" "BInst" "t_mem" "f_mem" |
148 | 1b7a5835 | Iustin Pop | "t_disk" "f_disk" "Score" |
149 | 1b7a5835 | Iustin Pop | |
150 | ba9349b8 | Iustin Pop | when (null clusters) $ do |
151 | 29a30533 | Iustin Pop | def_socket <- Path.defaultLuxiSocket |
152 | 29a30533 | Iustin Pop | let lsock = fromMaybe def_socket (optLuxi opts) |
153 | ba9349b8 | Iustin Pop | let name = local |
154 | ba9349b8 | Iustin Pop | input_data <- Luxi.loadData lsock |
155 | 693342ad | Iustin Pop | result <- writeData nlen name opts input_data |
156 | 2cdaf225 | Iustin Pop | unless result . exitWith $ ExitFailure 2 |
157 | ba9349b8 | Iustin Pop | |
158 | d5072e4c | Iustin Pop | results <- mapM (\name -> Rapi.loadData name >>= writeData nlen name opts) |
159 | d5072e4c | Iustin Pop | clusters |
160 | d5072e4c | Iustin Pop | unless (all id results) $ exitWith (ExitFailure 2) |