Pulp

Background¶

See the parent epic for the background.

Goal¶

To have the installer allow users to opt-in to using the new tasking system. By default, it's opted-out.

How to do this¶

1. Use the new pulpcore-worker instead of the /usr/bin/rq entry point. The new pulpcore-worker does not take any additional parameters and N of them can be started at once. The new console script entry point is named pulpcore-worker, and it will be available anywhere pulpcore is installed once ticket 8501 is merged and released.

Do not use both the new and old style workers!

2. Don't start a resource manager. It's ok if you do, but you don't need to, it's no longer required.

3. Make sure the setting USE_NEW_WORKER_TYPE=True. Pulp needs to know it's using the new style or the old style. The default is USE_NEW_WORKER_TYPE=False.

How installer users opt-in¶

That's up to the installer team, but there needs to be some simple way for them to opt-in or out. By default for now, the installer should default to the old-style RQ workers.

Switching back and forth¶

Users should be able to switch back and forth. If there is an option to opt-in for example, the installer user should be able to opt-out and rerun the installer and get back the old-style workers. The pulpcore code is prepared to deal with this as well.