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| author | Joey Hess <joey@kitenet.net> | 2014-05-14 19:41:05 -0400 |
|---|---|---|
| committer | Joey Hess <joey@kitenet.net> | 2014-05-14 19:41:05 -0400 |
| commit | 7115d1ec162b4059b3e8e8f84bd8d5898c1db025 (patch) | |
| tree | 42c1cce54e890e1d56484794ab33129132d8fee2 /src/Propellor/Property/Hostname.hs | |
| parent | ffe371a9d42cded461236e972a24a142419d7fc4 (diff) | |
moved source code to src
This is to work around OSX's brain-damange regarding filename case
insensitivity.
Avoided moving config.hs, because it's a config file. Put in a symlink to
make build work.
Diffstat (limited to 'src/Propellor/Property/Hostname.hs')
| -rw-r--r-- | src/Propellor/Property/Hostname.hs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/Propellor/Property/Hostname.hs b/src/Propellor/Property/Hostname.hs new file mode 100644 index 00000000..031abb9d --- /dev/null +++ b/src/Propellor/Property/Hostname.hs @@ -0,0 +1,33 @@ +module Propellor.Property.Hostname where + +import Propellor +import qualified Propellor.Property.File as File + +-- | Ensures that the hostname is set to the HostAttr value. +-- Configures /etc/hostname and the current hostname. +-- +-- A FQDN also configures /etc/hosts, with an entry for 127.0.1.1, which is +-- standard at least on Debian to set the FDQN (127.0.0.1 is localhost). +sane :: Property +sane = property ("sane hostname") (ensureProperty . setTo =<< getHostName) + +setTo :: HostName -> Property +setTo hn = combineProperties desc go + `onChange` cmdProperty "hostname" [basehost] + where + desc = "hostname " ++ hn + (basehost, domain) = separate (== '.') hn + + go = catMaybes + [ Just $ "/etc/hostname" `File.hasContent` [basehost] + , if null domain + then Nothing + else Just $ File.fileProperty desc + addhostline "/etc/hosts" + ] + + hostip = "127.0.1.1" + hostline = hostip ++ "\t" ++ hn ++ " " ++ basehost + + addhostline ls = hostline : filter (not . hashostip) ls + hashostip l = headMaybe (words l) == Just hostip |
