hiera lookup use clientcert instead of hostname
hiera lookup use clientcert instead of hostname

This variable is less likely (impossible?) to be spoofed. It is also fully
qualified. Whereas a Puppet agent can send whatever `hostname` or `fqdn`
Facter value they like.

boffbowsh/ci-puppet,op-ct/puppet-skeleton,alphagov/ci-puppet,boffbowsh/ci-puppet,alphagov/govuk_mirror-puppet,alexmuller/puppet-lighfe,gds-operations/puppet-skeleton,alphagov/govuk_mirror-puppet,alphagov/govuk_offsitebackups-puppet,alphagov/govuk_offsitebackups-puppet,alphagov/govuk_mirror-puppet,russmckendrick/puppet-skeleton,alexmuller/puppet-lighfe,boffbowsh/ci-puppet,gds-attic/govuk_redirector-puppet,boffbowsh/ci-puppet,alphagov/ci-puppet,alphagov/ci-puppet,alphagov/ci-puppet