server {
    server_name ${domain};
    root ${webroot if webroot else '/var/www/{}/'.format(vhost)};
    index index.html index.htm;

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

    ssl_trusted_certificate /etc/letsencrypt/live/${domain}/chain.pem;
    ssl_certificate /etc/letsencrypt/live/${domain}/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/${domain}/privkey.pem;
    ssl_dhparam /etc/ssl/dhparam4096.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;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;

    add_header Strict-Transport-Security "max-age=63072000; includeSubDomains";

    resolver 8.8.8.8 8.8.4.4 valid=300s;
    resolver_timeout 5s;

% if max_body_size:
    client_max_body_size ${max_body_size};
% elif proxy:
    client_max_body_size 5M;
% endif

    location /.well-known/acme-challenge/ {
        alias /var/www/dehydrated;
    }

% if proxy:
%     for location, options in proxy.items():
    location ${location} {
        proxy_pass           ${options['target']};
        proxy_http_version   ${options.get('http_version', '1.1')};
        proxy_set_header     Host ${domain};
% if options.get('websockets', False):
        proxy_set_header     Connection "upgrade";
        proxy_set_header     Upgrade $http_upgrade;
% endif
        proxy_set_header     X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header     X-Forwarded-Proto HTTPS;
        proxy_set_header     X-Forwarded-Host ${domain};
% for option, value in options.get('proxy_set_header', {}).items():
        proxy_set_header     ${option} ${value};
% endfor
% if location != '/':
        proxy_set_header     X-Script-Name ${location};
% endif
        proxy_buffering      off;
    }
%     endfor
% endif

% if extras:
<%include file="extras/${node.name}/${vhost}" />
% endif
}