container-puppet.sh idempotency on restart
container-puppet.sh idempotency on restart

When restarting a container-puppet-{service} container,
make sure to remove /etc/puppet from its storage,
otherwise the config generation might fail, for example
when using upload-puppet-module with a stack update.

Change-Id: I1ff3363259397bba60f5ec09086cb7de34e7af8b
Closes-Bug: #1940571

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates