nginx_conf http/2

crontab

30 2 * * 1 /usr/bin/letsencrypt renew >> /var/log/le-renew.log

nginx.conf

http {
  
  	...
  
	ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
	ssl_prefer_server_ciphers on;
	ssl_ciphers EECDH+CHACHA20:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;
	ssl_session_cache shared:SSL:10m;
	ssl_session_timeout 10m;
	ssl_stapling on;
	ssl_stapling_verify on;


	##
	# Headers
	##

	add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
  
  	...
  
}

site.conf

upstream app {
    server 127.0.0.1:8080;
}

server {
    listen 443 ssl default_server;
    server_name mydomain.com;

    ssl_certificate     /etc/letsencrypt/live/mydomain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/mydomain.com/privkey.pem;

    location / {
        proxy_pass http://app;
    }

    location /static/ {
        autoindex on;
        root /go/src/github.com/mydomain.com/app/public/;
    }
}

server {
    listen 80 default_server;
    server_name mydomain.com;
    return 301 https://$server_name$request_uri;
}