Run Bitnami Wordpress Behind Load Balancer

This is mostly a note for myself after finally figuring out how to do this. The rest of the internet looks like they'd rather terminate the SSL on their own instances.

define('WP_SITEURL', 'https://xyz.com/');
define('WP_HOME', 'https://xyz.com/');
if($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'){

    $_SERVER['HTTPS'] = 'on';
    $_SERVER['SERVER_PORT'] = 443;
}

Then wordpress and the plugins and forcing everybody to use https all works like it's supposed to.