nginx.conf

server {

    listen 80;
    listen [::]:80;
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    server_name example.com;

    charset UTF-8;

    if ($scheme = http) {
       return 301 https://$server_name$request_uri;
   }

    location / {
        proxy_pass http://127.0.0.1:6007;
        proxy_http_version 1.1;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $http_host;
        proxy_set_header X-Forwarded-Proto http;
        proxy_hide_header X-powered-by;
        proxy_buffering off;
        proxy_request_buffering off;
        proxy_redirect off;
        proxy_headers_hash_bucket_size 128;
        proxy_connect_timeout 3m;
        proxy_send_timeout 3m;
        proxy_read_timeout 3m;
    }

    client_max_body_size 70m;

    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

}