[stable/stein] Neutron-tempest-plugin jobs are failing due to wrong python version

[Slawek Kaplonski]

Issue like in https://b5dda6b7d9fe09cc6972-899ca8db232a7bf5fd9d6d869408b0bd.ssl.cf1.rackcdn.com/720051/1/check/neutron-tempest-plugin-api-stein/5a092fb/controller/logs/devstacklog.txt happens in all neutron-tempest-plugin jobs in stable/stein branch.

Error:

2020-04-20 00:19:32.058 | Ignoring typed-ast: markers 'python_version == "3.6"' don't match your environment
2020-04-20 00:19:32.120 | Obtaining file:///opt/stack/neutron-tempest-plugin
2020-04-20 00:19:32.987 | neutron-tempest-plugin requires Python '>=3.6' but the running Python is 2.7.17
2020-04-20 00:19:33.080 | You are using pip version 9.0.3, however version 20.0.2 is available.
2020-04-20 00:19:33.080 | You should consider upgrading via the 'pip install --upgrade pip' command.

I think it should be run with python 3.6 or we should use tag 0.9.0 which is last version with support for python 2.7

[Bernard Cafarelli (bcafarel)]

I wonder if we lack some configuration change like
https://bugs.launchpad.net/tempest/+bug/1871327
https://review.opendev.org/#/q/I60949fb735c82959fb2cfcb6aeef9e33fb0445b6

Or what changed recently, I think it was still passing on April 17/18 2020

For supported stable branches, I guess we should have it under py3 venv (to run on latest tests)

[Ghanshyam Mann (ghanshyammann)]

this is same problem what we had in devstack for tempest to install the tempest on system wide not in venv.

- https://github.com/openstack/neutron-tempest-plugin/blob/5719f992d146505eb593d1fd68d02e4945e2e07f/devstack/plugin.sh#L8

We need to disable the neutron-tempest-plugins installation on systemwide.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/721277

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

Hello:

I think the problem described in this bug is due to [1]. Master branch and Train is not affected by this problem because the tempest-plugin CI jobs are using python3.6, but older branches (<=Stein) are using python2.7.

This is why this check in "setup.cfg" is failing:
  python-requires = >=3.6

Because we don't have branches in neutron-tempest-plugin, we should remove this limitation until all stable branches tested in the CI use python>=3.6.

Regards.

[1]https://github.com/openstack/neutron-tempest-plugin/commit/cad2c81b5427af6a26293742d9b2605b73eebfa0

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.opendev.org/721795

[OpenStack Infra (hudson-openstack)]

Change abandoned by Rodolfo Alonso Hernandez (<email address hidden>) on branch: master
Review: https://review.opendev.org/721795

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/721277
Committed: https://git.openstack.org/cgit/openstack/neutron-tempest-plugin/commit/?id=0bdc63d7c1c3ed192b7206ec9ac25e4380fabbd2
Submitter: Zuul
Branch: master

commit 0bdc63d7c1c3ed192b7206ec9ac25e4380fabbd2
Author: Bernard Cafarelli <email address hidden>
Date: Mon Apr 20 16:31:14 2020 +0200

    Only install plugin system-wide if INSTALL_TEMPEST is set

    Similarly to main tempest installation check, we should only install
    plugin on master branches (where INSTALL_TEMPEST is True), and not on
    stable branches

    Also drop all-plugin use for tox_envlist in stadium jobs that were using
    it, it is deprecated and breaks with this new variable

    Change-Id: Ia7238c2044053d77b559de544c22909c50e1a11f
    Co-Authored-By: Ghanshyam Mann <email address hidden>
    Closes-Bug: #1873776