computer-playbook/roles/letsencrypt/templates/ssl_header.j2

listen 443 ssl;
listen [::]:443 ssl;
http2 on;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets on;
ssl_prefer_server_ciphers on;
add_header Strict-Transport-Security max-age=15768000;
ssl_stapling on;
ssl_stapling_verify on;
ssl_certificate /etc/letsencrypt/live/{{domain}}/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/{{domain}}/privkey.pem;
ssl_trusted_certificate /etc/letsencrypt/live/{{domain}}/chain.pem;