Use the default keyserver. (#46)
Use the default keyserver. (#46)

Specifying the keyserver as the module previously does leads to
  intermittent failure when puppeting, when the keyserver is not
  available.
The apt::key resource defaults to using the Ubuntu keyserver, and that
  is much more reliable.
  https://github.com/puppetlabs/puppetlabs-apt/blob/master/manifests/params.pp#L20
threatstack/threatstack-puppet