ssl_certificate /etc/letsencrypt/live/${env['domain']}/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/${env['domain']}/privkey.pem;
ssl_trusted_certificate /etc/letsencrypt/live/${env['domain']}/chain.pem;

ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305;

# curl https://ssl-config.mozilla.org/ffdhe2048.txt > /path/to/dhparam
ssl_dhparam /etc/nginx/dhparam.txt;

ssl_prefer_server_ciphers on;

ssl_session_timeout 1d;
ssl_session_cache shared:MozSSL:10m;
ssl_session_tickets off;

ssl_stapling on;
ssl_stapling_verify on;