64 lines
1.6 KiB
Haskell
64 lines
1.6 KiB
Haskell
module Propellor.Property.Dns where
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import Propellor
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import Propellor.Property.File
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import qualified Propellor.Property.Apt as Apt
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import qualified Propellor.Property.Service as Service
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namedconf :: FilePath
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namedconf = "/etc/bind/named.conf.local"
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data Zone = Zone
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{ zdomain :: Domain
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, ztype :: Type
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, zfile :: FilePath
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, zmasters :: [IPAddr]
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, zconfiglines :: [String]
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}
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zoneDesc :: Zone -> String
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zoneDesc z = zdomain z ++ " (" ++ show (ztype z) ++ ")"
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type IPAddr = String
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type Domain = String
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data Type = Master | Secondary
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deriving (Show, Eq)
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secondary :: Domain -> [IPAddr] -> Zone
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secondary domain masters = Zone
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{ zdomain = domain
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, ztype = Secondary
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, zfile = "db." ++ domain
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, zmasters = masters
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, zconfiglines = ["allow-transfer { }"]
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}
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zoneStanza :: Zone -> [Line]
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zoneStanza z =
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[ "// automatically generated by propellor"
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, "zone \"" ++ zdomain z ++ "\" {"
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, cfgline "type" (if ztype z == Master then "master" else "slave")
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, cfgline "file" ("\"" ++ zfile z ++ "\"")
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] ++
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(if null (zmasters z) then [] else mastersblock) ++
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(map (\l -> "\t" ++ l ++ ";") (zconfiglines z)) ++
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[ "};"
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, ""
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]
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where
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cfgline f v = "\t" ++ f ++ " " ++ v ++ ";"
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mastersblock =
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[ "\tmasters {" ] ++
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(map (\ip -> "\t\t" ++ ip ++ ";") (zmasters z)) ++
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[ "\t};" ]
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-- | Rewrites the whole named.conf.local file to serve the specificed
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-- zones.
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zones :: [Zone] -> Property
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zones zs = hasContent namedconf (concatMap zoneStanza zs)
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`describe` ("dns server for zones: " ++ unwords (map zoneDesc zs))
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`requires` Apt.serviceInstalledRunning "bind9"
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`onChange` Service.reloaded "bind9"
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