Add noop molecule job to the integrated repo

In order to verify that molecule requirements are satisfied we add a
noop molecule scenario that installs requirements and run a noop
task.

We can expand the scenario in the futute or add new ones, though for
now goal is to ensure that updating requirements is not breaking
other roles having valid scenarios around.

Change-Id: Id0abc217d404af4a08532707e60d738613c9a7ed

molecule/default/converge.yml

@@ -0,0 +1,8 @@
+---
+
+- name: Noop converge playbook
+  hosts: localhost
+  tasks:
+    - name: Print out hostname
+      ansible.builtin.debug:
+        var: inventory_hostname

molecule/default/molecule.yml

@@ -0,0 +1,28 @@
+---
+dependency:
+  name: galaxy
+  options:
+    requirements-file: ansible-collection-requirements.yml
+    force: true
+
+driver:
+  name: docker
+
+platforms:
+  - name: "integrated-${MOLECULE_SCENARIO_NAME}"
+    image: "${DOCKER_REGISTRY:-quay.io/gotmax23}/${DOCKER_IMAGE_TAG:-debian-systemd:bookworm}"
+    command: ${DOCKER_COMMAND:-""}
+    pre_build_image: true
+    privileged: true
+    systemd: true
+
+provisioner:
+  name: ansible
+  lint:
+    name: ansible-lint
+  config_options:
+    defaults:
+      inject_facts_as_vars: false
+
+scenario:
+  name: default

tox.ini

@@ -158,3 +158,20 @@ commands =
     {[testenv:ansible-lint]commands}
     {[testenv:ansible-syntax]commands}
     {[testenv:inventory]commands}
+
+[testenv:molecule]
+# You can use DOCKER_REGISTRY and DOCKER_IMAGE_TAG to switch between
+# tested distros. I.e:
+# DOCKER_IMAGE_TAG=ubuntu-systemd:jammy tox -e molecule
+deps =
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+    -rtest-requirements.txt
+
+commands =
+    molecule test
+
+passenv =
+    {[testenv]passenv}
+    DOCKER_REGISTRY
+    DOCKER_IMAGE_TAG
+    DOCKER_COMMAND

zuul.d/project.yaml

@@ -24,6 +24,7 @@
       - openstack-ansible-deploy-ceph-jobs
       - openstack-ansible-deploy-proxy-jobs
       - openstack-ansible-deploy-stepca-jobs
+      - openstack-ansible-molecule
       - check-requirements
       - publish-openstack-docs-pti
       - release-notes-jobs-python3