$config = array(
      'cluster.instance' => $instance,
      'repository.default-local-path' => $core.'/repo/'.$instance,
      'phd.pid-directory' => $core.'/run/'.$instance.'/phd',
      'phd.log-directory' => $core.'/log/'.$instance.'/phd',
      'storage.default-namespace' => $instance,
      'phabricator.cache-namespace' => $instance,
      'phabricator.cookie-prefix' => $instance,

      $notify_client_uri = "https://{$notification_lb}:443/{$instance}/";
      $notify_server_uri = "http://{$notification_host}:22281/";

      $config['notification.enabled'] = true;
      $config['notification.client-uri'] = $notify_client_uri;
      $config['notification.server-uri'] = $notify_server_uri;

      $config['diffusion.ssh-user'] = $instance;
      $config['diffusion.ssh-host'] = 'vault.phacility.com';

      $cloudfront_key = $instance.'.phacility.com';
      if (isset($cloudfront_domains[$cloudfront_key])) {
        $cloudfront_domain = $cloudfront_domains[$cloudfront_key];
      } else {
        $cloudfront_domain = $cloudfront_default;
      }
      $cloudfront_uri = 'https://'.$cloudfront_domain.'/';
      $config['security.alternate-file-domain'] = $cloudfront_uri;

      $mysql_user = PhacilityCore::getMySQLUserForRole($mysql_role, $instance);
      $mysql_pass = PhacilityCore::getMySQLPasswordForRole($mysql_role);

      $config['mysql.user'] = $mysql_user;
      $config['mysql.pass'] = $mysql_pass;