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-rw-r--r--Propellor/Attr.hs15
1 files changed, 13 insertions, 2 deletions
diff --git a/Propellor/Attr.hs b/Propellor/Attr.hs
index fb94dc34..05ea3ff5 100644
--- a/Propellor/Attr.hs
+++ b/Propellor/Attr.hs
@@ -49,10 +49,21 @@ alias domain = pureAttrProperty ("aka " ++ domain)
addDNS :: Record -> SetAttr
addDNS record d = d { _dns = S.insert record (_dns d) }
+-- | Adds a DNS NamedConf stanza.
+--
+-- Note that adding a Master stanza for a domain always overrides an
+-- existing Secondary stanza, while a Secondary stanza is only added
+-- when there is no existing Master stanza.
addNamedConf :: NamedConf -> SetAttr
-addNamedConf conf d = d { _namedconf = S.insert conf (_namedconf d) }
+addNamedConf conf d = d { _namedconf = new }
+ where
+ m = _namedconf d
+ domain = confDomain conf
+ new = case (confType conf, confType <$> M.lookup domain m) of
+ (Secondary, Just Master) -> m
+ _ -> M.insert domain conf m
-getNamedConf :: Propellor (S.Set NamedConf)
+getNamedConf :: Propellor (M.Map Domain NamedConf)
getNamedConf = asks _namedconf
sshPubKey :: String -> Property