map $http_upgrade $connection_upgrade {
  default Upgrade;
  '' close;
}

server {
  listen 80;

  include autossl.conf;

  set_real_ip_from 192.168.1.0/24;
  real_ip_header X-Real-IP;
  real_ip_recursive on;

  location / {

	set $target '';
	set $target_scheme 'http';
	set $target_port '';
	set $header_host $host;

	access_by_lua '
		ngx.log(ngx.ERR, "!!!!!!!!! proxy.conf !!!!!!!! ", domain)
		local res = ngx.ctx.targetInfo
		if not res then
			ngx.log(ngx.ERR, "This should not happen", domain)
			ngx.exit(499)
			return false
		end

		local host = ngx.var.host
		local uri = ngx.var.uri
		local scheme = ngx.var.scheme

		if scheme == "http" then
			if res["forcessl"] == "true" then
				return ngx.redirect("https://"..host..uri, 301)
			end
		end

		if res["targetssl"] == "true" then
			ngx.var.target_scheme = "https"
		end

		if res["host-pass-though"] == "false" then
			ngx.var.header_host = res["ip"]
		end
	  
		ngx.var.target = res["ip"]
		ngx.var.target_port = res["targetPort"]
	';


	resolver 192.168.1.1 ipv6=off;  #8.8.4.4;  # use Google's open DNS server

	proxy_http_version 1.1;
	proxy_pass_request_headers on;
	proxy_pass $target_scheme://$target:$target_port;

	proxy_set_header Upgrade $http_upgrade;
	proxy_set_header Connection $connection_upgrade;
	proxy_ssl_session_reuse on;
	proxy_intercept_errors off;

	proxy_set_header Host $header_host;
	add_header X-Target-Host $target;
	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 $target_scheme;
	proxy_set_header Referer $target_scheme://$header_host;
	proxy_set_header Accept-Language $http_accept_language;
	proxy_set_header User-Agent $http_user_agent;

	sub_filter $target $host;
	sub_filter_once off;
  }
}