Add basic CI job to verify code

This project should be verified by the CI test job.
So far, it will just simply deploy microshift role with basic parameters
and run the linters: ansible-lint and markdown lint.

.gitignore

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+.tox/

.zuul.yaml

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+---
+# FIXME: find a way to provide pull-secret.txt secret to the CI
+# job and skip using base-microshift-openstack base job.
+- job:
+    name: test-ansible-microshift-role
+    parent: base-microshift-openstack
+    nodeset: centos-9-microshift-single-node
+    timeout: 10800
+    required-projects:
+      - opendev.org/zuul/zuul-jobs
+    run: ci/playbooks/deploy_microshift.yaml
+    post-run: ci/playbooks/collect_logs.yaml
+
+- project:
+    name: openstack-k8s-operators/ansible-microshift-role
+    github-check:
+      jobs:
+        - tox-linters
+        - markdownlint
+        - test-ansible-microshift-role

ci/playbooks/collect_logs.yaml

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+---
+- hosts: all
+  gather_facts: false
+  vars:
+    log_dir: "{{ ansible_user_dir }}/zuul-output/logs"
+  tasks:
+    - name: Create log dir
+      file:
+        path: "{{ log_dir }}"
+        state: directory
+        mode: 0755
+
+    - name: Collect pod logs
+      ansible.builtin.shell: |
+        oc get pods > all_pods.txt
+        oc get secrets > all_secrets.txt
+        oc get pv > all_pv.txt
+        oc get events > oc_events.txt
+        oc get routes > oc_routes.txt
+        mkdir pod
+        all_pods=$(oc get pods -o name)
+        for pod in $all_pods; do
+          echo $pod
+          oc logs $pod > ${pod}-logs.txt
+          oc get -o yaml $pod > ${pod}.yaml
+          oc describe $pod > ${pod}-describe.txt
+        done
+        oc get all --all-namespaces > all-resources.txt
+      args:
+        chdir: "{{ log_dir }}"
+      changed_when: true
+
+    - name: Copy files from {{ work_dir }} on node
+      include_role:
+        name: fetch-output

ci/playbooks/deploy_microshift.yaml

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+---
+- hosts: controller
+  vars:
+    fqdn: microshift.dev
+    pv_storageclass: somestorage
+    setup_olm: true
+    pv_count:
+      start: 1
+      end: 12
+    overwrite_container_policy: true
+    delete_openshift_storage: true
+  tasks:
+    - name: Setup Microshift
+      block:
+        - name: Start Microshift deployment
+          include_role:
+            name: ansible-microshift-role
+
+        # NOTE: The topolvm requires additional volume and create a lvm
+        # on that volume. We don't use that for CI, so just skip it.
+        - name: Create script to verify deployment
+          copy:
+            content: |
+              for i in {1..20}; do
+                echo "Ensuring that containers are spawned... ${i}"
+                count=$(/usr/local/bin/oc get pods --all-namespaces | grep openshift | grep -viE 'topolvm|running' -c)
+                if [ "$count" -eq "0" ]; then
+                    echo "Microshift is deployed, we can continue..."
+                    break
+                else
+                    echo "The Microshift containers are not ready..."
+                    sleep 15
+                fi
+              done
+              echo "Skipping waiting for openshift-storage - topolvm"
+            dest: /tmp/check-microshift.sh
+            mode: "0755"
+
+        - name: Check if all containers are up and ready
+          shell: /tmp/check-microshift.sh
+      always:
+        - name: Remove sensitive data
+          include_role:
+            name: ansible-microshift-role
+            tasks_from: cleanup.yaml

test-requirements.txt

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+ansible-lint

tox.ini

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+[tox]
+envlist = ansiblelint
+skipsdist = True
+
+[testenv]
+basepython = python3
+deps = -r{toxinidir}/test-requirements.txt
+
+[testenv:ansiblelint]
+show-source = True
+commands =
+    ansible-lint