Puppet4 Bug?

nginx::vhost::vhosts:
  'foo.example.com':
     ensure: 'present'
  'example.net':
     ensure: 'present'

$vhosts = hiera('nginx::vhost::vhosts')

$vhosts_list = keys($vhosts)

each($vhosts_list) |String $vhost_name| {

  $vhost_config_ensure = $vhost_name['ensure']
  notify{"Vhost  ${vhost_name} is set to ${vhost_config_ensure}":}
}



Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Evaluation Error: The value 'ensure' cannot be converted to Numeric. at /etc/puppetlabs/code/environments/production/modules/nginx/manifests/vhost.pp:25:40 on node puppetclient-01.local

$vhost=hiera('nginx::vhost::vhosts')

$vhost.each |$key, $value| {
notify { "VHost: ${key} - Value: ${value['ensure']}": }
}