There is a growing pattern for using ansible to orchestrate runs of
existing puppet code. For instance, the OpenStack Infrastructure team
started using ansible for this very reason. It also turns out that
successfully running puppet and interpreting success or failure is
harder than you'd expect, thus warranting a module and not just a shell
command.
This is ported in from
http://git.openstack.org/cgit/openstack-infra/ansible-puppet