nginx.conf

worker_processes 1;
error_log stderr notice;

events {
    worker_connections 1024;
}

http {

    include /etc/nginx/mime.types;
    charset utf-8;

    proxy_set_header Host $host;

    gzip_static on;
    gzip on;
    gzip_min_length  1100;
    gzip_buffers  4 32k;
    gzip_types    text/plain application/x-javascript text/xml text/css;
    gzip_vary on;

    server {
        listen 80;
        server_name ${DOMAINS};

        location /.well-known/acme-challenge {
            proxy_pass http://letsencrypt:80;
            proxy_set_header Host            $host;
            proxy_set_header X-Forwarded-For $remote_addr;
            proxy_set_header X-Forwarded-Proto https;
        }

        location / {
            return         301 https://$server_name$request_uri;
        }
    }

    server {
        listen 80 default_server;
        return 444;
    }
    server {
        listen 443;
        server_name ${DOMAINS};

        ssl on;
        ssl_certificate /etc/letsencrypt/live/${MY_DOMAIN_NAME}/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/${MY_DOMAIN_NAME}/privkey.pem;
        ssl_session_timeout 5m;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
        ssl_prefer_server_ciphers on;

        ssl_session_cache shared:SSL:10m;
        ssl_dhparam /etc/ssl/private/dhparams.pem;

        location /.well-known/acme-challenge {
            proxy_pass http://letsencrypt:443;
            proxy_set_header Host            $host;
            proxy_set_header X-Forwarded-For $remote_addr;
            proxy_set_header X-Forwarded-Proto https;
        }

        location /static/ {
            try_files $uri $uri/;
        }
        location / {
            proxy_pass http://app:4444;
        }
    }
}