Template configuration to configure nginx reverse proxy for graylog

graylog.conf.j2

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name {{ nginx_server_name }};
    rewrite ^ https://$server_name$request_uri? permanent;
    #return 301 https://$host$request_uri;
}
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name {{ nginx_server_name }};
    location / {
      proxy_set_header Host $http_host;
      proxy_set_header X-Forwarded-Host $host;
      proxy_set_header X-Forwarded-Server $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Graylog-Server-URL {{ graylog_http_external_uri }};
      proxy_pass http://127.0.0.1:9000;
    }
    ssl_certificate /etc/letsencrypt/live/{{ nginx_server_name }}/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/{{ nginx_server_name }}/privkey.pem;
    ssl_session_timeout 1d;
    ssl_session_cache shared:MozSSL:10m;
    ssl_session_tickets off;
    ssl_dhparam /etc/ssl/dhparam.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 off;
    access_log /var/log/nginx/graylog.access.log;
    error_log /var/log/nginx/graylog.error.log;
    add_header Strict-Transport-Security "max-age=63072000" always;
    ssl_stapling on;
    ssl_stapling_verify on;
    ssl_trusted_certificate /etc/letsencrypt/live/{{ nginx_server_name }}/chain.pem;
}