Example

nginx.conf.mustache

events {
    worker_connections ${WORKERS:-1024};
}

http {

  {{#config.websocket.on}}
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
  {{/config.websocket.on}}

  {{#config.ssl.on}}
    server {
        listen {{config.server.port}};
        return 301 https://$host$request_uri;
    }
  {{/config.ssl.on}}

    server {
        server_name {{config.server.name}};

    {{#config.ssl.on}}
        listen {{config.ssl.port}} ssl;

        ssl_certificate /certs/cert.pem;
        ssl_certificate_key /certs/key.pem;
    {{/config.ssl.on}}
    {{^config.ssl.on}}
        listen {{config.server.port}};
    {{/config.ssl.on}}

        proxy_redirect off;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        location / {
            proxy_pass {{config.web.url}};
            proxy_buffering on;
        }

      {{#config.websocket.on}}
        location /{{config.websocket.route}}/ {
            proxy_pass {{config.websocket.url}};
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_read_timeout 86400;
            proxy_ignore_client_abort on;
        }
      {{/config.websocket.on}}
    }
}

daemon off;