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; {% include 'roles/letsencrypt/templates/ssl_credentials.j2' %}