Add back testing for tripleo-ansible modules.

[0] enabled the execution of molecule tests to cover the tripleo-ansible
added modules. However, the job was removed due to the movement to
collections.

As currently, none of the molecule tests under ansible_plugins/tests are
being triggered by the CI any changes into the corresponding modules
might break their functionality and pass unnoticed.

This patch enables back the tripleo-ansible-centos-8-molecule-tripleo-modules
test which will get triggered when some of the corresponding modules
get modified.

[0]: 2d42082737
Change-Id: Id6f89dfa7075e59f17fe847e3d14024aaa287933
(cherry picked from commit dd2fc8a73b)

tox.ini

@@ -108,3 +108,10 @@ commands =
                 echo -e '\n\nNo molecule tests have been executed\nSee https://docs.openstack.org/tripleo-ansible/latest/contributing.html#local-testing-of-new-roles\n\n';  \
             fi"
     {[testenv:linters]commands}
+
+[testenv:modules]
+deps=
+  {[testenv:linters]deps}
+commands =
+    bash -c "cd {toxinidir}/tripleo_ansible/ansible_plugins/tests; molecule test --all;"
+    {[testenv:linters]commands}

zuul.d/molecule.yaml

@@ -64,6 +64,7 @@
       - tripleo-ansible-centos-8-molecule-tripleo_validations_package
       - tripleo-ansible-centos-8-molecule-tuned
       - tripleo-ansible-centos-8-role-addition
+      - tripleo-ansible-centos-8-molecule-tripleo-modules
     gate:
       jobs:
       - tripleo-ansible-centos-8-molecule-aide
@@ -126,6 +127,7 @@
       - tripleo-ansible-centos-8-molecule-tripleo_validations_package
       - tripleo-ansible-centos-8-molecule-tuned
       - tripleo-ansible-centos-8-role-addition
+      - tripleo-ansible-centos-8-molecule-tripleo-modules
     name: tripleo-ansible-molecule-jobs
     periodic-weekly:
       jobs:
@@ -633,3 +635,13 @@
     voting: false
     vars:
       tox_envlist: role-addition
+- job:
+    files:
+    - ^tripleo_ansible/ansible_plugins/modules/container_startup_config.py
+    - ^tripleo_ansible/ansible_plugins/modules/tripleo_container_configs.py
+    - ^tripleo_ansible/ansible_plugins/modules/tripleo_container_config_scripts.py
+    - ^tripleo_ansible/ansible_plugins/modules/tripleo_os_net_config.py
+    - ^tripleo_ansible/ansible_plugins/strategy/.*
+    - ^tox.ini
+    name: tripleo-ansible-centos-8-molecule-tripleo-modules
+    parent: tripleo-ansible-centos-8-base