[all] Long overdue cleanups of Zuulv2 compatibility base configs

Jeremy Stanley fungi at yuggoth.org
Thu Jun 20 19:58:49 UTC 2019

On 2019-06-04 22:45:58 +0000 (+0000), Clark Boylan wrote:
> As part of our transition to Zuulv3 a year and a half ago, we
> carried over some compatibility tooling that we would now like to
> clean up. Specifically, we add a zuul-cloner (which went away in
> zuulv3) shim and set a global bindep fallback file value in all
> jobs. Zuulv3 native jobs are expected to use the repos zuul has
> precloned for you (no zuul-cloner required) as well as supply an
> in repo bindep.txt (or specify a bindep.txt path or install
> packages via some other method).
> This means that we should be able to remove both of these items
> from the non legacy base job in OpenDev's zuul. The legacy base
> job will continue to carry these for you so that you can write new
> native jobs over time. We have two changes [0][1] ready to go for
> this; however, due to the potential for disruption we would like
> to give everyone some time to test and prepare for this change.
> Fungi has a change to base-test [2] which will remove the
> zuul-cloner shim. Once this is in you can push "Do Not Merge"
> changes to your zuul config that reparent your tests from "base"
> to "base-test" and that will run the jobs without the zuul-cloner
> shim.
> Testing the bindep fallback removal is a bit more difficult as we
> set that in zuul's server config globally. What you can do is
> check your jobs' job-output.txt log files for usage of
> "bindep-fallback.txt".
> Our current plan is to merge these changes on June 24, 2019. We
> will be around to help debug any unexpected issues that come up.
> Jobs can be updated to use the "legacy-base" base job instead of
> the "base" base job if they need to be reverted to the old
> behavior quickly.
> [0] https://review.opendev.org/656195
> [1] https://review.opendev.org/663151
> [2] https://review.opendev.org/663135

This is just a reminder that the above work to remove the
zuul-cloner shim and bindep fallback package list from non-legacy
jobs will be merged some time on Monday, June 24 (just the other
side of this coming weekend). Per other messages in this thread you
can test the zuul-cloner shim removal for particular jobs you're
concerned about with "Depends-On: https://review.opendev.org/663996"
or by creating a similar do-not-merge sort of change to parent your
custom job definitions on the base-test job.

Obvious uncaught breakage to look out for on Monday will be failures
revolving around "command not found" errors for zuul-cloner or other
commands which may have been provided by one of the packages in the
<URL: https://opendev.org/openstack/project-config/src/commit/e2100145fe507f75e5430c375b3a85383ab29357/nodepool/elements/bindep-fallback.txt >
Jeremy Stanley
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