Tripleo wallaby jobs are failing with with "ERROR:__main__:MissingRequiredSource: /var/lib/kolla/config_files/src/* file is not found".

Description:

Tripleo wallaby jobs are failing with with "ERROR:__main__:MissingRequiredSource: /var/lib/kolla/config_files/src/* file is not found".

Error snippet:

https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_f4d/890596/3/gate/tripleo-ci-centos-9-standalone/f4d02dd/logs/undercloud/home/zuul/standalone_deploy.log

~~~
2023-08-08 20:43:20.929916 | | WARNING | ERROR: Can't run container mysql_bootstrap
stderr: INFO:__main__:Loading config file at /var/lib/kolla/config_files/config.json
INFO:__main__:Validating config file
INFO:__main__:Kolla config strategy set to: COPY_ALWAYS
INFO:__main__:Copying service configuration files
INFO:__main__:Copying /dev/null to /etc/libqb/force-filesystem-sockets
INFO:__main__:Setting permission for /etc/libqb/force-filesystem-sockets
ERROR:__main__:MissingRequiredSource: /var/lib/kolla/config_files/src/* file is not found
~~~

Failure started since 08th Aug as per build history:

https://zuul.opendev.org/t/openstack/builds?job_name=tripleo-ci-centos-9-standalone

Issue started after got latest version of podman in Centos9
~~~
last good version: podman-4.6.0-1.el9.x86_64
affected version: podman-4.6.0-3.el9.x86_64
~~~

we pass the puppet manifest to be executed in containers using the STEP_CONFIG environment. Now podman does not give the full value that results in puppet executing incomplete manifests and that's why we've seen no config files extracted under /var/lib/config-date/puppet-generated

Thanks to Takashi for the debugging and reporting bug against Podman: https://bugzilla.redhat.com/show_bug.cgi?id=2230212