[CI] [train] tripleo-ci-centos-7-containers-multinode fails: nova_statedir_ownership returns ModuleNotFoundError: No module named 'selinux'

[Cédric Jeanneret]

Hello there,

It seems there's an issue in CI on stable/train: the Undercloud fails to deploy on CentOS7, failing the "nova_statedir_ownership" container due to a missing SELinux python module:

2021-01-26T15:50:27.326693035+00:00 stderr F + command -v python3
2021-01-26T15:50:27.326900989+00:00 stderr F + python3 /container-config-scripts/nova_statedir_ownership.py
2021-01-26T15:50:28.254468540+00:00 stderr F Traceback (most recent call last):
2021-01-26T15:50:28.254468540+00:00 stderr F File "/container-config-scripts/nova_statedir_ownership.py", line 20, in <module>
2021-01-26T15:50:28.254468540+00:00 stderr F import selinux
2021-01-26T15:50:28.254468540+00:00 stderr F ModuleNotFoundError: No module named 'selinux'

Example change:
https://review.opendev.org/c/openstack/tripleo-common/+/772412/

Direct log link:
https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_de3/772412/1/check/tripleo-ci-centos-7-containers-multinode/de3625e/logs/undercloud/var/log/containers/stdouts/nova_statedir_owner.log

This error prevents merging in this branch for the project running this job (afaik: a LOT), so setting alert + promotion-blocker flags.

[Cédric Jeanneret (cjeanner)]

Apparently it was due to the change itself:
the hardcoded shebang lead to python3 being installed, then detected by other scripts, and they failed due to the lack of python3 libs.

Closing this issue then!