feat(dns01): init DNS config (#9)

Reviewed-on: #9
Co-authored-by: Constantin Gierczak--Galle <git.cst1@mailbox.org>
Co-committed-by: Constantin Gierczak--Galle <git.cst1@mailbox.org>

machines/dns01/_configuration.nix

@@ -10,7 +10,17 @@ lib.extra.mkConfig {
     "nsd"
   ];
 
-  extraConfig = { };
+  extraConfig = {
+    # TODO : retrieve this address from meta/network.nix
+    deployment.targetHost = "45.13.104.26";
+    networking.firewall = {
+      enable = true;
+      logRefusedConnections = lib.mkForce true;
+      logRefusedPackets = lib.mkForce true;
+      allowedTCPPorts = [ 53 ];
+      allowedUDPPorts = [ 53 ];
+    };
+  };
 
   root = ./.;
 }

machines/dns01/beta.dgnum.eu.nix

@@ -1,22 +0,0 @@
-{ dns, ... }:
-
-with dns.lib.combinators;
-{
-  SOA = {
-    nameServer = "ns1";
-    adminEmail = "webmaster@dgnum.eu";
-    serial = 2019030800;
-  };
-
-  NS = [
-    # TODO: add nameservers with GLUE and everything
-  ];
-
-  #A = [ "203.0.113.1" ];
-  #AAAA = [ "4321:0:1:2:3:4:567:89ab" ];
-
-  subdomains = {
-    photoprism = host "129.199.146.101" null;
-    immich = host "129.199.146.101" null;
-  };
-}

machines/dns01/lab.dgnum.eu.nix

@@ -0,0 +1,51 @@
+{ dns, lib, ... }:
+
+let
+  inherit (lib) mapAttrs' nameValuePair;
+  meta = (import ./../../meta) lib;
+in
+with dns.lib.combinators;
+{
+  SOA = {
+    nameServer = "ns01.lab.dgnum.eu";
+    adminEmail = "dns@dgnum.eu";
+    serial = 2019030800;
+    retry = 3600;
+    minimum = 300;
+  };
+
+  NS = [ "ns01.lab.dgnum.eu." ];
+
+  #A = [ "203.0.113.1" ];
+  #AAAA = [ "4321:0:1:2:3:4:567:89ab" ];
+
+  subdomains = {
+    # Hosted services
+    # NOTE: for now manually supplied, in the future automatically filled in
+    photoprism = host "129.199.146.101" null;
+    immich = host "129.199.146.101" null;
+
+    # Nameservers
+    ns01 = host "45.13.104.26" "2a0e:e701:1120:1000:ffff::45.13.104.26";
+
+    # *.infra.beta.dgnum.eu
+    infra = {
+      subdomains = mapAttrs' (
+        host:
+        { site, ... }:
+        nameValuePair "${host}.${site}" (
+          with meta.network.${host}.addresses;
+          {
+            A = ipv4;
+            AAAA = ipv6;
+
+            subdomains = {
+              v4.A = ipv4;
+              v6.AAAA = ipv6;
+            };
+          }
+        )
+      ) meta.nodes;
+    };
+  };
+}

machines/dns01/nsd.nix

@@ -1,4 +1,4 @@
-{ sources, ... }:
+{ sources, lib, ... }:
 
 let
   dns = import sources.dns-nix { };
@@ -6,17 +6,14 @@ in
 {
   services.nsd = {
     enable = true;
+    verbosity = 1000;
+    interfaces = [ "2a0e:e701:1120:1000:ffff::45.13.104.26" ];
     zones = {
-      "beta.dgnum.eu" = {
+      "lab.dgnum.eu" = {
         # provideXFR = [ ... ];
         # notify = [ ... ];
-        data = dns.lib.toString "beta.dgnum.eu" (import ./beta.dgnum.eu.nix { inherit dns; });
+        data = dns.lib.toString "lab.dgnum.eu" (import ./lab.dgnum.eu.nix { inherit dns lib; });
       };
     };
   };
-  networking = {
-    firewall = {
-      allowedUDPPorts = [ 53 ];
-    };
-  };
 }