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{
nixosConfigurations,
config,
lib,
pkgs,
...
}:
let
inherit (lib) types;
in
{
options.dns = {
enable = lib.mkEnableOption "dns zones via nix";
# contains dns entries defined on the local host
zones = lib.mkOption {
type = types.attrsOf pkgs.dnsNix.types.subzone;
default = { };
};
# contains dns entries defined on the local host and on remote hosts, merged together
allZones = lib.mkOption {
type = types.attrsOf pkgs.dnsNix.types.zone;
default = { };
};
zoneFiles = lib.mkOption {
type = types.attrsOf types.path;
readOnly = true;
default = lib.mapAttrs (
name: zone:
toString (
pkgs.writeTextFile {
name = "${name}.zone";
text = pkgs.dnsNix.types.zoneToString name (pkgs.dnsNix.evalZone name zone);
}
)
) config.dns.allZones;
};
};
config = lib.mkIf config.dns.enable {
# serve records defined in all host configs
dns.allZones = lib.mkMerge (
lib.flip lib.mapAttrsToList nixosConfigurations (
_hostName: machineConfig: machineConfig.config.dns.zones
)
);
};
}