<div dir="ltr">It has come to my attention that we spend an enormous amount of time in Fuel when switching between OpenStack releases. A good amount of this seems to be due to a chicken and the egg problem. We cant deploy updated packages with out updated manifests, and we we cant update (in that CI won't pass) the manifests without updated packages. In order to accommodate this we either have to set up a new separate set of CI pipelines for both or freeze various parts of CI, merging patch sets that can't pass until everything is in and working, or some monstrous combination of both. This has become quite the time sink for everyone involved and there must be a better way to accommodate switching between releases.<div><br></div><div>Thinking about this I wonder how much easier this process could be if the manifests supported two releases at once.</div><div><br></div><div>I propose that we consider supporting both the dev release, and the prior release (as stable and default for option precedence). We would need to come up with some option versioning scheme in which we can identify options which are only relevant to the specific release (I'm not yet sure what sure what this would look line) This seems like it would be most of the need to support multiple versions at once.</div><div><br></div><div>But why should we go through this effort? Yes this would become complicated to set up, however I cant imagine that other folks are not having a similar issues. </div><div><br></div><div>* Moving to a two version system should nearly reduce the impact of switching to nearly none (given you have packages)</div><div>* It should also help accelerate our releases of puppet-openstack, since devs can switch between versions more easily</div><div>* It should help our release support story since non-option changes will automatically hit dev and (current) stable manifests at the same time</div><div>* This can also help the current stable release process, instead of branching, we can simply tag the first stable release and maintain it in the master branch, only pushing it out when we drop it to shift the dev/stable versions</div><div>* While not a direct benefit to puppet-openstack, this would help simplify fuel running CI on master openstack and master puppet-openstack which will help with our efforts in puppet-openstack</div><div><br></div><div>So next steps</div><div>Lets discuss the proposal in general (good idea / bad idea). I'd like to hash out what this versioned interface may need to look like, that way I can take up attempting to make this work in a single module so we can vet/discuss any issues more thoroughly.</div></div><div dir="ltr">-- <br></div><div dir="ltr"><p dir="ltr">--</p><p dir="ltr"><span style="font-size:13.1999998092651px">Andrew Woodward</span></p><p dir="ltr"><span style="font-size:13.1999998092651px">Mirantis</span></p><p dir="ltr"><span style="font-size:13.1999998092651px">Fuel Community Ambassador</span></p><p dir="ltr"><span style="font-size:13.1999998092651px">Ceph Community</span></p>
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