{ config, pkgs, lib, ... }: with lib; { options.krebs.zone-head-config = mkOption { type = lib.types.attrsOf lib.types.str; description = '' The zone configuration head which is being used to create the zone files. The string for each key is pre-pended to the zone file. ''; default = { "krebsco.de" = /* bindzone */ '' $TTL 60 @ 3600 IN SOA spam.krebsco.de. spam.krebsco.de. 0 7200 3600 86400 3600 @ 3600 IN NS ns1 @ 3600 IN NS ni @ 3600 IN NS ns2.he.net. @ 3600 IN NS ns3.he.net. @ 3600 IN NS ns2.hosting.de. panda NS panda panda A 130.61.237.100 ''; }; }; config = { environment.etc = mapAttrs' (name: pkg: { name = "zones/${name}"; value.source = pkg; }) pkgs.krebs.zones; nixpkgs.overlays = [ # Explicit zones generated from config.krebs.hosts.*.extraZones (self: super: let stripEmptyLines = s: (concatStringsSep "\n" (remove "\n" (remove "" (splitString "\n" s)))) + "\n"; all-zones = foldAttrs (sum: current: sum + "\n" + current) "" ([config.krebs.zone-head-config] ++ combined-hosts); combined-hosts = mapAttrsToList (name: getAttr "extraZones") config.krebs.hosts; in { krebs = super.krebs or {} // { zones = super.krebs.zones or {} // mapAttrs' (name: value: { name = name; value = self.writeText "${name}.zone" (stripEmptyLines value); }) all-zones; }; }) # Implicit zones generated from config.krebs.hosts.*.nets.*.ip{4,6}.addr (self: super: let # record : { name : str, type : enum [ "A" "AAAA" ], data : str } # toRecord : record.name -> record.type -> record.data -> record toRecord = name: type: data: { inherit name type data; }; # toRecords : str -> host -> [record] toRecords = netname: host: let net = host.nets.${netname}; in optionals (hasAttr netname host.nets) (filter (x: x.data != null) (concatLists [ (map (name: toRecord name "A" (net.ip4.addr or null)) (concatMap (name: [ "${name}." "4.${name}." ]) (net.aliases or []))) (map (name: toRecord name "AAAA" (net.ip6.addr or null)) (concatMap (name: [ "${name}." "6.${name}." ]) (net.aliases or []))) ])); # formatRecord : record -> str formatRecord = { name, type, data }: "${name} IN ${type} ${data}"; # writeZone : attrs -> package writeZone = { name ? "${domain}.zone" , domain ? substring 0 1 netname , nameservers ? [ "ni" ] , netname , hosts ? config.krebs.hosts }: self.writeText name /* bindzone */ '' $TTL 60 @ IN SOA ns admin 1 3600 600 86400 60 @ IN NS ns ${concatMapStringsSep "\n" (name: /* bindzone */ "ns IN CNAME ${name}") nameservers } ${concatMapStringsSep "\n" formatRecord (concatMap (toRecords netname) (attrValues hosts)) } ''; in { krebs = super.krebs or {} // { zones = super.krebs.zones or {} // { i = writeZone { netname = "internet"; }; r = writeZone { netname = "retiolum"; }; w = writeZone { netname = "wiregrill"; }; }; }; }) ]; }; }