Make caddy config more conditional

flake.nix

@@ -26,8 +26,8 @@
           admin
           hardware-hetzner
           agenix.nixosModule
-          caddy
           gitea
+          caddy
         ];
       };
 

modules/caddy.nix

@@ -1,20 +1,27 @@
-{ ... }:
+{ config, lib, ... }:
+
+with lib;
 
 {
   networking.firewall.allowedTCPPorts = [ 22 80 443 ];
 
   # If I end up wanting to add plugins, see:
   # https://mdleom.com/blog/2021/12/27/caddy-plugins-nixos/
-  services.caddy = {
-    enable = true;
-    virtualHosts."tecosaur.net".extraConfig = ''
+  services.caddy = mkMerge [
+    {
+      enable = true;
+      virtualHosts."tecosaur.net".extraConfig = ''
 respond "Hello, world!"
   '';
-    virtualHosts."git.tecosaur.net".extraConfig = ''
-reverse_proxy localhost:3000
-  '';
-    virtualHosts."ci.tecosaur.net".extraConfig = ''
-reverse_proxy localhost:3030
-  '';
-  };
+    }
+    (mkIf config.services.gitea.enable {
+      virtualHosts."git.tecosaur.net".extraConfig =
+        "reverse_proxy localhost:${toString config.services.gitea.httpPort}";
+    })
+    (mkIf (builtins.hasAttr "woodpecker-server" config.services &&
+           config.services.woodpecker-server.enable) {
+      virtualHosts."ci.tecosaur.net".extraConfig =
+        "reverse_proxy localhost:${toString config.services.woodpecker-server.httpPort}";
+    })
+  ];
 }