A tip for using Beanstalk Enhanced Health monitoring instead of Basic Health:

For Drifting Ruby's Production environment, my nginx.config looks like this. Take note that the file is not /etc/nginx/conf.d/proxy.conf, but rather /etc/nginx/conf.d/webapp_healthd.conf. This is because we are overwriting the existing default webapp_healthd.conf that beanstalk creates a symlink for. If you do have existing instances with the older proxy.conf, it could create a conflict since we're listening on port 80.

files:
  /etc/nginx/conf.d/webapp_healthd.conf:
    content: |
      client_max_body_size 500M;
      server_names_hash_bucket_size 128;
      upstream backend {
        server unix:///var/run/puma/my_app.sock;
      }
      log_format healthd '$msec"$uri"'
                      '$status"$request_time"$upstream_response_time"'
                      '$http_x_forwarded_for';
      server {
        listen 80;
        server_name _ localhost;
        if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2})") {
          set $year $1;
          set $month $2;
          set $day $3;
          set $hour $4;
        }
        access_log  /var/log/nginx/access.log main;
        access_log /var/log/nginx/healthd/application.log.$year-$month-$day-$hour healthd;
        error_log /var/log/nginx/error.log;
        large_client_header_buffers 8 32k;
        root /var/app/current/public;
        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;
          # 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;
          }
        }
        
        location /assets {
          alias /var/app/current/public/assets;
          gzip_static on;
          gzip on;
          expires max;
          add_header Cache-Control public;
        }
        location /public {
          alias /var/app/current/public;
          gzip_static on;
          gzip on;
          expires max;
          add_header Cache-Control public;
        }
      }

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