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-rw-r--r--krebs/3modules/zones.nix107
1 files changed, 94 insertions, 13 deletions
diff --git a/krebs/3modules/zones.nix b/krebs/3modules/zones.nix
index eb1351866..51ced6f95 100644
--- a/krebs/3modules/zones.nix
+++ b/krebs/3modules/zones.nix
@@ -1,22 +1,103 @@
with import <stockholm/lib>;
-{ config, ... }: {
+{ config, pkgs, ... }: {
config = {
- # Implements environment.etc."zones/<zone-name>"
- environment.etc = 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
+ environment.etc =
mapAttrs'
- (name: value: {
+ (name: pkg: {
name = "zones/${name}";
- value.text = stripEmptyLines value;
+ value.source = pkg;
})
- all-zones;
+ pkgs.krebs.zones;
+
+ nixpkgs.overlays = [
+ # Explicit zones generated from config.krebs.hosts.*.extraZones
+ (self: super: let
+ stripEmptyLines = s: (concatStringsSep "\n"
+ (remove "\n" (remove "" (splitString "\n" s)))) + "\n";
+ all-zones = foldAttrs (sum: current: sum + "\n" + current) ""
+ ([config.krebs.zone-head-config] ++ combined-hosts);
+ combined-hosts =
+ mapAttrsToList (name: getAttr "extraZones") config.krebs.hosts;
+ in {
+ krebs = super.krebs or {} // {
+ zones = super.krebs.zones or {} //
+ mapAttrs'
+ (name: value: {
+ name = name;
+ value = self.writeText "${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"; };
+ };
+ };
+ })
+ ];
};
}