nginx config for action cable

01_nginx.config

files:
  /etc/nginx/conf.d/proxy.conf:
    content: |
      client_max_body_size 500M;
      server_names_hash_bucket_size 128;

     upstream backend {
        server unix:///var/run/puma/my_app.sock;
      }

     server {
       listen 80;
       access_log /var/log/nginx/access.log;
       error_log /var/log/nginx/error.log;

       server_name  localhost;

       large_client_header_buffers 8 32k;

       location / {
          proxy_set_header X-Real-IP $remote_addr;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header Host $http_host;
          proxy_set_header X-NginX-Proxy true;

         proxy_buffers 8 32k;
          proxy_buffer_size 64k;

         proxy_pass http://backend;
          proxy_redirect off;

         location /assets {
            root /var/app/current/public;
          }

         location /vendor {
            root /var/app/current/public;
          }

         # enables WS support
          location /cable {
            proxy_pass http://backend;
            proxy_http_version 1.1;
            proxy_set_header Upgrade "websocket";
            proxy_set_header Connection "Upgrade";
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          }
        }
      }

container_commands:
 01restart_nginx:
    command: "service nginx restart"