feat(caddy): move to new package

modules/caddy-plus/sub-domain-options.nix

@@ -0,0 +1,52 @@
+{cfg}: {
+  lib,
+  name,
+  ...
+}: let
+  inherit (lib) literalExpression mkOption types;
+in {
+  options = {
+    subDomainName = mkOption {
+      type = types.str;
+      default = name;
+      description = "The sub domain name to handle.";
+    };
+
+    reverseProxy = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      description = ''
+        Option to give the parameters to a simple "reverse_proxy" command
+        appended after extraConfig.
+      '';
+    };
+
+    subDirectories = mkOption {
+      type = types.attrsOf (types.submodule (import ./sub-dir-options.nix {inherit cfg;}));
+      default = {};
+      example = literalExpression ''
+        {
+          headscale = {
+            appSupport = false;
+            reverseProxy = "localhost:8080";
+            extraConfig = '''
+              encode gzip
+            ''';
+          };
+        };
+      '';
+      description = ''
+        Declarative specification of a subdomain's subdirectories served by Caddy.
+      '';
+    };
+
+    extraConfig = mkOption {
+      type = types.lines;
+      default = "";
+      description = ''
+        Additional lines of configuration appended to this sub domain in the
+        automatically generated `Caddyfile`.
+      '';
+    };
+  };
+}