Elastic Beankstalk Nginx configuration to supports /assets and /packs

nginx_proxy.config

# This is to enable WS support. Credits: # https://gist.github.com/Bubelbub/0a942a0d51a3d329897d
# THIS WORKS! for running the example 5.0.0.beta1 chat app on a single instance Elastic beanstalk AWS instance

files:
  "/etc/nginx/conf.d/websockets.conf" :
    content: |
      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 forme-dev.us-west-2.elasticbeanstalk.com;

        # prevents 502 bad gateway error
        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;

          # prevents 502 bad gateway error
          proxy_buffers 8 32k;
          proxy_buffer_size 64k;

          proxy_pass http://backend;
          proxy_redirect off;

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

          # commented out for now in favor of rails serving the files
          location ^~ /packs/ {
            root /var/app/current/public;
          }

          # enables WS support
          location /cable {
            proxy_pass http://backend;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
          }
        }
      }

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