NGINX: Reverse Proxy SSL

reverse_proxy_ssl.conf

## redirect http to https
server {
        listen 0.0.0.0:80;
        server_name YOUR_DOMAIN;
        rewrite ^ https://$http_host$request_uri? permanent;    # force redirect http to https

}

## https
server {
        listen 443;

        root /var/www/demo;
        index index.html index.htm;

        server_name YOUR_DOMAIN;

        ssl on;
        ssl_certificate /opt/keys/STRING.combined.crt;
        ssl_certificate_key /opt/keys/STRING.nopassword.key;


        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules
        }

        location /btserver {
             # rewrite ^/STRING_URL/(.*)   /$1 break; # rewrite the url if necessary
              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;

              # Fix the “It appears that your reverse proxy set up is broken" error.
              proxy_pass          http://localhost:PORT;  # proxy target
              proxy_read_timeout  90;
        }
}