nginx.conf

user nginx;
worker_processes auto;
error_log /dev/stderr;
pid /var/run/nginx.pid;

include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;   
    use epoll;
    multi_accept on;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /dev/stdout  main;

    client_max_body_size 8M;
    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    resolver 127.0.0.11;

    gzip on; 
    gzip_disable msie6;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    include /etc/nginx/conf.d/*.conf;


    server {
        listen       80 default_server;
        server_name  _;

        include /etc/nginx/default.d/*.conf;
    	location / {
                set $node               backend:3000;
				proxy_set_header        Host $host;
				proxy_set_header        X-Real-IP $remote_addr;
				proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
				proxy_set_header        X-Forwarded-Proto $scheme;
				proxy_redirect          http:// https://;
				proxy_pass              http://$node;
		}
    }	 
}