nginx.conf.erb

user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
	worker_connections 768;
	# multi_accept on;
}

http {

	##
	# Basic Settings
	##

	sendfile on;
	tcp_nopush on;
	tcp_nodelay on;
	keepalive_timeout 65;
	types_hash_max_size 2048;
	# server_tokens off;

	server_names_hash_bucket_size 64;
	# server_name_in_redirect off;

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

	##
	# SSL Settings
	##

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
	ssl_prefer_server_ciphers on;

	##
	# Logging Settings
	##

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

  # INTERNAL_PORT 
  # PORT
  upstream backends { server localhost:<%= ENV['INTERNAL_PORT'] %>; }
  server {
    listen      [::]:<%= ENV['PORT'] %>;
    listen      *:<%= ENV['PORT'] %>;
    # server_name login.diabetes.watch;
    # return 301 https://$host$request_uri;
  # { }
  # server { }
    # listen      [::]:443 ssl spdy;
    # listen      *:443 ssl spdy;
    server_name localhost _;

    resolver 8.8.8.8;
    keepalive_timeout   70;
    # add_header Alternate-Protocol 443:npn-spdy/2;

    location    / {
      proxy_pass  http://backends;
      # proxy_redirect http://login.diabetes.watch:5000/ https://login.diabetes.watch/;
      # proxy_redirect $INTERNAL_PORT https://login.diabetes.watch/;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";
      proxy_set_header Host $http_host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header X-Forwarded-Port $server_port;
      proxy_set_header X-Request-Start $msec;
    }
  }
}