server {
    listen 80 default_server;
    listen [::]:80 default_server;
{% if domain %}
    server_name {{ domain }} www.{{ domain }};
{% else %}
    server_name localhost;
{% endif %}
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    ssl_certificate /etc/ssl/certs/certificate.crt;
    ssl_certificate_key /etc/ssl/private/private.key;
    ssl_session_timeout 30m;
    ssl_session_cache shared:SSL:20m;
    ssl_session_tickets off;

{% if dhparam %}
    # Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
    ssl_dhparam /etc/ssl/certs/dhparam.pem;
{% endif %}

    # modern configuration. tweak to your needs.
    ssl_protocols TLSv1.2;
    ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
    ssl_prefer_server_ciphers on;

    # HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
    add_header Strict-Transport-Security max-age=15768000;

{% if ssl_trusted_certificate %}
    # OCSP Stapling ---
    # fetch OCSP records from URL in ssl_certificate and cache them
    ssl_stapling on;
    ssl_stapling_verify on;

    ## verify chain of trust of OCSP response using Root CA and Intermediate certs
    ssl_trusted_certificate /etc/ssl/certs/ca.crt;

    resolver 8.8.8.8 8.8.4.4 208.67.222.222 208.67.220.220 valid=300s;
{% endif %}

    location ~ /(static|media)/ {
       autoindex on;
       root /backend/www;
    }

    location ~ /(api|admin) {
        proxy_pass http://backend:8000;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  X-Url-Scheme $scheme;
        proxy_redirect off;
    }

    location / {
        proxy_pass http://frontend:8080;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  X-Url-Scheme $scheme;
        proxy_redirect off;
    }
}