elixir.conf

server {
        listen 80;
		server_name elixir.localhost;
	
        
        location / {
            
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Remote-Addr $remote_addr;
            proxy_set_header Host $host;
            proxy_http_version 1.1;
            proxy_pass http://172.20.0.20:4000;
        }

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
          location = /50x.html {
            root   html;
          }
	}