Sample Nginx reverse proxy configuration with websockets

espressodance.com.conf

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
	listen 80;
	listen [::]:80;
	server_name live.wcs.life;
	return 301 https://$host$request_uri;
}

server {
	listen 443 ssl http2;
	listen [::]:443 ssl http2;
	server_name espressodance.com;
  access_log /var/log/nginx/espressodance.com.access.log;
  error_log /var/log/nginx/espressodance.com.error.log;

	ssl_certificate /etc/letsencrypt/live/espressodance.com/fullchain.pem;
	ssl_certificate_key /etc/letsencrypt/live/espressodance.com/privkey.pem;
	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
	ssl_prefer_server_ciphers on;
	ssl_dhparam /etc/ssl/certs/dhparam.pem;
	ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
	ssl_session_timeout 1d;
	ssl_session_cache shared:SSL:50m;
	ssl_stapling on;
	ssl_stapling_verify on;
	add_header Strict-Transport-Security max-age=15768000;

	location / {
			proxy_pass http://127.0.0.1:8282;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade; # allow websockets
			proxy_set_header Connection $connection_upgrade;
			proxy_set_header X-Forwarded-For $remote_addr; # preserve client IP
	}
}