modules: Setup dgn-network with configuration from metadata

meta/network.nix

@@ -0,0 +1,69 @@
+let
+  mkDefaultInterface = _: attrs: { ipv4 = [ ]; ipv6 = [ ]; gateways = [ ]; } // attrs;
+
+  mkBase = config: config // { interfaces = builtins.mapAttrs mkDefaultInterface (config.interfaces or { }); };
+
+  getAddresses = version: interface: builtins.map (builtins.getAttr "address") interface.${version};
+
+  mkNet = _: value:
+    let base = mkBase value; in
+    base // {
+      addresses =
+        let
+          _addresses = builtins.foldl'
+            ({ ipv4, ipv6 }: net: {
+              ipv4 = ipv4 ++ getAddresses "ipv4" net;
+              ipv6 = ipv6 ++ getAddresses "ipv6" net;
+            })
+            { ipv4 = [ ]; ipv6 = [ ]; }
+            (builtins.attrValues base.interfaces);
+        in
+        _addresses // {
+          public = (builtins.filter
+            (ip: builtins.substring 0 7 ip != "192.168")
+            _addresses.ipv4) ++ _addresses.ipv6;
+        };
+    };
+in
+
+builtins.mapAttrs mkNet {
+  compute01 = {
+    interfaces = {
+      eno1 = {
+        ipv4 = [
+          { address = "129.199.146.147"; prefixLength = 24; }
+          { address = "192.168.1.147"; prefixLength = 24; }
+        ];
+
+        gateways = [ "129.199.146.254" ];
+      };
+    };
+
+    hostId = "8df60941";
+  };
+
+  storage01 = {
+    interfaces = {
+      eno1 = {
+        ipv4 = [
+          { address = "129.199.146.148"; prefixLength = 24; }
+          { address = "192.168.1.148"; prefixLength = 24; }
+        ];
+
+        gateways = [ "129.199.146.254" ];
+      };
+    };
+
+    hostId = "d4e7c369";
+  };
+
+  web01 = {
+    interfaces = {
+      ens3 = {
+        ipv4 = [{ address = "129.199.129.53"; prefixLength = 24; }];
+
+        gateways = [ "129.199.129.1" ];
+      };
+    };
+  };
+}