better switch

nginx-proxy/default.conf.template

@@ -1,17 +1,25 @@
+map $http_upgrade $proxy_connection {
+    default "https_backend";
+    websocket "ws_backend";
+}
+
 server {
- listen 80;
- server_name frontend;
+    listen 80;
+    server_name example.com;
 
- location = / {
-   proxy_pass http://${PROXY_HOST}:${RPC_PORT};
- }
+    location / {
+        proxy_pass http://$proxy_connection;
+        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_set_header X-Forwarded-Proto $scheme;
+    }
+}
 
- location /ws {
-   proxy_pass http://${PROXY_HOST}:${WS_PORT};
-   proxy_http_version  1.1;
-   proxy_set_header    Upgrade $http_upgrade;
-   proxy_set_header    Connection "upgrade";
-   proxy_set_header    Host $http_host;
-   proxy_set_header    X-Real-IP $remote_addr;
- }
+upstream rpc_backend {
+    server ${PROXY_HOST}:${RPC_PORT}${RPC_PATH:-/};
+}
+
+upstream ws_backend {
+    server ${PROXY_HOST}:${WS_PORT}${WS_PATH:-/};
 }