[rdo-list] python-heat-agent subpackage from openstack-heat-templates

Hi All I would like to get some feedback on this packaging change: https://review.rdoproject.org/r/#/c/1909 This change creates a new subpackage python-heat-agent out of openstack-heat-templates. Currently image building or boot configuration has to do a number of non-obvious steps to end up with a server ready to perform heat-driven software deployments. The package python-heat-agent installs all dependencies and files required to do this, resulting in a boot config on a pristine image being as simple as: yum -y install https://www.rdoproject.org/repos/rdo-release.rpm yum -y install python-heat-agent systemctl enable os-collect-config systemctl start --no-block os-collect-config python-heat-agent installs one hook which allows configuration via heat templates. The aim is to create another subpackage per configuration tool hook in heat-templates. So python-heat-agent-puppet will install the puppet hook and depend on python-heat-agent and puppet packages. This depends on some upstream heat-templates changes: https://review.openstack.org/#/q/topic:centos-rdo-boot-config As far as TripleO goes, this packaging approach has the potential to eliminate the need for diskimage-builder invoking heat-templates elements, and further reducing the use of tripleo-image-elements - I'd like to have a discussion on openstack-dev around whether there should be a push to remove tripleo-image-elements entirely.