55 lines
1.8 KiB
Haskell
55 lines
1.8 KiB
Haskell
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module Propellor.Property.Systemd.Journald where
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import Propellor
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import qualified Propellor.Property.Systemd as Systemd
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import qualified Propellor.Property.File as File
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import Utility.DataUnits
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-- | Configures journald, restarting it so the changes take effect.
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configured :: Systemd.Option -> String -> Property
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configured option value =
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Systemd.configured "/etc/systemd/journald.conf" option value
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`onChange` Systemd.restarted "systemd-journald"
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-- The string is parsed to get a data size.
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-- Examples: "100 megabytes" or "0.5tb"
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type DataSize = String
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configuredSize :: Systemd.Option -> DataSize -> Property
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configuredSize option s = case readSize dataUnits s of
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Just sz -> configured option (systemdSizeUnits sz)
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Nothing -> property ("unable to parse " ++ option ++ " data size " ++ s) noChange
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systemMaxUse :: DataSize -> Property
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systemMaxUse = configuredSize "SystemMaxUse"
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runtimeMaxUse :: DataSize -> Property
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runtimeMaxUse = configuredSize "RuntimeMaxUse"
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systemKeepFree :: DataSize -> Property
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systemKeepFree = configuredSize "SystemKeepFree"
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runtimeKeepFree :: DataSize -> Property
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runtimeKeepFree = configuredSize "RuntimeKeepFree"
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systemMaxFileSize :: DataSize -> Property
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systemMaxFileSize = configuredSize "SystemMaxFileSize"
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runtimeMaxFileSize :: DataSize -> Property
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runtimeMaxFileSize = configuredSize "RuntimeMaxFileSize"
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-- Generates size units as used in journald.conf.
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systemdSizeUnits :: Integer -> String
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systemdSizeUnits n = filter (/= ' ') (roughSize cfgfileunits True n)
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where
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cfgfileunits :: [Unit]
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cfgfileunits =
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[ Unit (p 6) "E" "exabyte"
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, Unit (p 5) "P" "petabyte"
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, Unit (p 4) "T" "terabyte"
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, Unit (p 3) "G" "gigabyte"
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, Unit (p 2) "M" "megabyte"
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, Unit (p 1) "K" "kilobyte"
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]
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p :: Integer -> Integer
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p n = 1024^n
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