load-balancing.conf

# WebSocket Proxy with Load Balancing
#
# Like the other examples, but there are three WS backends (ws1, ws2, ws3).
# Each client must always be forwarded to the same backend (e.g. when using 
# HTTPS requests).

upstream myservice {
    # Clients with the same IP are redirected to the same backend
    ip_hash;

    # Available backend servers
    server ws1.example.com:8080;
    server ws2.example.com:8080;
    server ws3.example.com:8080;
}


server {

    # see simple-wss.conf or simple-ws.conf

    location /services/myservice {
        # switch off logging
        access_log off;

        # redirect all HTTP traffic to localhost:8080
        proxy_pass http://myservice;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        # WebSocket support (nginx 1.4)
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Path rewriting
        rewrite /services/myservice/(.*) /$1 break;
        proxy_redirect off;
    }
}