未知指令“ passenger_app_group_name”

Question

我正在尝试调整Nginx +乘客以使用Web套接字，我正在尝试将以下内容添加到我的nginx.conf

      passenger_app_group_name portal_action_cable;
      passenger_force_max_concurrent_requests_per_process 0;

但是我遇到错误unknown directive "passenger_app_group_name" in /etc/nginx/nginx.conf:69

下面是我的nginx.conf

的相关部分

    location /cable {
      proxy_pass http://127.0.0.1:3000/cable;
      proxy_http_version 1.1;
      proxy_set_header Upgrade websocket;
      proxy_set_header Connection Upgrade;
      proxy_set_header Host $host;
      passenger_app_group_name portal_action_cable;
      passenger_force_max_concurrent_requests_per_process 0; 

Nginx version is nginx/1.17.9
rails (5.2.3)
passenger (6.0.2)

我正在将Nginx的docker映像与上述配置文件一起使用