events {}

http {
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                '$status $body_bytes_sent "$http_referer" '
                '"$http_user_agent" "$http_x_forwarded_for" "$host"';

    access_log /var/log/nginx/access.log main;
    error_log /var/log/nginx/error.log;


    server {
        listen 80;
        server_name your.domain.example;

        location /.well-known/acme-challenge/ {
            root /var/www/html;
        }

        location / {
            return 301 https://$host$request_uri;
        }
    }

    server {
        listen 443 ssl;
        server_name your.domain.example;

        ssl_certificate /etc/letsencrypt/live/your.domain.example/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/your.domain.example/privkey.pem;

        location / {
            proxy_pass http://<app_ip:app_port>;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
        }
    }
}