tmnp: save current state

applications/firewall.nix

@@ -1,17 +1,25 @@
-{lib, config, ...}:{
+{lib, pkgs, config, ...}: {
 
   # using https://github.com/greaka/ops/blob/818be4c4dea9129abe0f086d738df4cb0bb38288/apps/restic/options.nix as a base
   options = {
-    firewall_forward = lib.mkOption {
-      default = [ ];
-      type = lib.types.listOf lib.types.str;
-      description = ''
-        A list of routes to forward
-      '';
+    skynet_firewall = {
+      enable = lib.mkEnableOption {
+        default = false;
+        example = true;
+        description = "Skynet Firewall";
+        type = lib.types.bool;
+      };
+      forward = lib.mkOption {
+        default = [ ];
+        type = lib.types.listOf lib.types.str;
+        description = ''
+          A list of routes to forward
+        '';
+      };
     };
   };
 
-  config = {
+  config = lib.mkIf config.skynet_firewall.enable {
     # disable default firewall to enable nftables
     networking.firewall.enable = false;
     networking.nftables.enable = true;
@@ -61,7 +69,7 @@
           # ip saddr 193.1.99.123 tcp dport 443 counter packets 0 bytes 0 accept
 
           # can basically make each machiene responsibile for their own forwarding (in config at least)
-          ${lib.strings.concatMapStrings (x: x + "\n") config.firewall_forward}
+          ${lib.strings.concatMapStrings (x: x + "\n") config.skynet_firewall.forward}
 
           counter packets 0 bytes 0 reject with icmp type admin-prohibited
         }

flake.nix

@@ -32,6 +32,20 @@
         hostname = "test01.home.brendan.ie";
         sshUser = "root";
       }
+      {
+        # each machiene must have a name
+        name = "test02";
+
+        # core info about it
+        system = "x86_64-linux";
+        modules = [
+          ./machines/test02.nix
+        ];
+
+        # for the deployment
+        hostname = "test02.home.brendan.ie";
+        sshUser = "root";
+      }
     ];
 
     # the best part, nix is functional, so lets have some functions

machines/test01.nix

@@ -9,4 +9,7 @@
     ../applications/firewall.nix
   ];
 
+  # this server is teh firewall
+  skynet_firewall.enable = true;
+
 }

machines/test02.nix

@@ -0,0 +1,16 @@
+{ pkgs, ... }:
+
+{
+  imports = [
+    # base settings for alls ervers
+    ./base.nix
+
+    # applications for this particular server
+    ../applications/firewall.nix
+  ];
+
+  skynet_firewall.forward = [
+    "ip saddr 193.1.99.123 tcp dport 443 counter packets 0 bytes 0 accept"
+  ];
+
+}