Update custom nginx template

Author: cytopia

Dockerfiles/data/vhost-gen/templates-main/nginx.yml

@@ -84,12 +84,31 @@ vhost_type:
     root         "__DOCUMENT_ROOT__";
     index        __INDEX__;
 
-  # Reverse Proxy (-r)
+  # Reverse Proxy (-r http(s)://ADDR:PORT)
   rproxy: |
-    # Define the vhost to reverse proxy
+    # Define Reverse Proxy
     location __LOCATION__ {
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
+        # https://stackoverflow.com/a/72586833
+        proxy_set_header Host            $host;
+        proxy_set_header X-Real-IP       $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        # Proxy connection
+        proxy_pass __PROXY_PROTO__://__PROXY_ADDR__:__PROXY_PORT__;
+    }
+
+  # Reverse Proxy with websocket support (-r ws(s)://ADDR:PORT)
+  rproxy_ws: |
+    # Define Reverse Proxy with Websock support
+    location __LOCATION__ {
+        # https://stackoverflow.com/a/72586833
+        proxy_set_header Host            $host;
+        proxy_set_header X-Real-IP       $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        # Websocket settings
+        proxy_http_version          1.1;
+        proxy_set_header Upgrade    $http_upgrade;
+        proxy_set_header Connection "Upgrade";
+        # Proxy connection
         proxy_pass __PROXY_PROTO__://__PROXY_ADDR__:__PROXY_PORT__;
     }