[openstack-dev] [requirements][stable] EOL tags and upper-constraints.txt in tox.ini

Jeremy Stanley fungi at yuggoth.org
Wed Sep 20 13:36:38 UTC 2017

On 2017-09-20 08:41:14 -0400 (-0400), Doug Hellmann wrote:
> Is there any reason not to use the published files for all regular
> builds, instead of having tox.ini point to a git URL? Maybe only for
> regular builds off of stable branches?

I'm not sure what you mean by "regular builds" but the plan as I
understood it was to switch from git.o.o URLs to releases.o.o URLs
in the tox.ini files in all branches of projects already consuming
constraints files that way.

As early as now (if we already had the publication job in place) we
could update them all in master branches to retrieve something like
and then once stable/queens is branched in all repos (including the
requirements repo), switch the job to begin publishing to a URL for
rocky and push tox.ini updates to master branches switching the URL
to that as early in the cycle as possible. Alternatively, we could
publish master and queens copies (identical initially) and expect
the master branch tox.ini files to refer to master but then switch
them to queens on the stable/queens branch during RC. It just comes
down to which the stable/requirements/release teams think makes the
most sense from a procedural perspective.

Remember also that the timing on this doesn't require extreme
precision and there are no chicken-and-egg/catch-22 problems
associated with updating because the URLs in question are merely a
fallback method for when the constraints file is not already
provided locally. In the CI system, we directly provide constraints
files so that we can respect depends-on to requirements repo changes
and the like, so in practice this fallback is primarily for the
convenience of developers running tox locally.
Jeremy Stanley
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