nginx.conf

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    server_tokens off;

    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

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

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

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    # see https://github.com/jwilder/nginx-proxy

    # If we receive X-Forwarded-Proto, pass it through; otherwise, pass along the
    # scheme used to connect to this server
    map $http_x_forwarded_proto $proxy_x_forwarded_proto {
      default $http_x_forwarded_proto;
      ''      $scheme;
    }

    # If we receive X-Forwarded-Port, pass it through; otherwise, pass along the
    # server port the client connected to
    map $http_x_forwarded_port $proxy_x_forwarded_port {
      default $http_x_forwarded_port;
      ''      $server_port;
    }

    # If we receive Upgrade, set Connection to "upgrade"; otherwise, delete any
    # Connection header that may have been passed to this server
    map $http_upgrade $proxy_connection {
      default upgrade;
      '' close;
    }

    # see https://superuser.com/questions/1207464/how-to-pass-connection-from-nginx-to-another-server-reverse-proxy
    map $http_upgrade $connection_upgrade {
      default upgrade;
      ''      close;
    }

    # Apply fix for very long server names
    server_names_hash_bucket_size 128;

    # Default dhparam
    # ssl_dhparam /etc/nginx/dhparam/dhparam.pem;

    # Set appropriate X-Forwarded-Ssl header
    map $scheme $proxy_x_forwarded_ssl {
      default off;
      https on;
    }

    gzip on;
    gzip_min_length 1000;
    gzip_proxied    expired no-cache no-store private auth;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;

    gzip_types text/plain text/css text/xml application/json application/javascript application/xml+rss application/atom+xml image/svg+xml;

    include /etc/nginx/proxy-headers.default;
    include /etc/nginx/conf.d/default.conf;
}