feat: drafted out reverse proxy config for panoramax

modules/nixos-modules/server/panoramax.nix

@@ -53,6 +53,12 @@ in {
       description = "The panoramax package to use";
     };
 
+    subdomain = lib.mkOption {
+      type = lib.types.str;
+      description = "subdomain of base domain that panoramax will be hosted at";
+      default = "panoramax";
+    };
+
     # TODO: sgblur config
     port = mkOption {
       type = types.nullOr types.port;
@@ -233,7 +239,25 @@ in {
       }
       (
         lib.mkIf config.host.reverse_proxy.enable {
-          # TODO: configure reverse proxy here
+          host = {
+            reverse_proxy.subdomains.${config.services.panoramax.subdomain} = {
+              target = "http://localhost:${toString config.services.panoramax.port}";
+
+              websockets.enable = true;
+              forwardHeaders.enable = true;
+
+              extraConfig = ''
+                # allow large file uploads for panoramic images
+                client_max_body_size 100M;
+
+                # set timeout for image processing
+                proxy_read_timeout 300s;
+                proxy_send_timeout 300s;
+                send_timeout       300s;
+                proxy_redirect     off;
+              '';
+            };
+          };
         }
       )
       (