This is using linux-system-roles.certificate ansible role,
which replaces puppet-certmonger for submitting certificate
requests to certmonger. Each service is configured through
it's heat template.
Partial-Implements: blueprint ansible-certmonger
Depends-On: https://review.rdoproject.org/r/31713
Change-Id: Ib868465c20d97c62cbcb214bfc62d949bd6efc62