Initial OpenShift integration test support. (#36207)

Based on integration tests from chouseknecht for openshift_raw.

test/integration/cloud-config-openshift.kubeconfig.template

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+# This is the configuration template for ansible-test OpenShift integration tests.
+#
+# You do not need this template if you are:
+#
+# 1) Running integration tests without using ansible-test.
+# 2) Using the automatically provisioned openshift-origin docker container in ansible-test.
+#
+# If you do not want to use the automatically provided OpenShift container,
+# place your kubeconfig file next to this file, with the same name, but without the .template extension.
+# This will cause ansible-test to use the given configuration and not launch the automatically provided container.
+#
+# It is recommended that you DO NOT use this template unless you cannot use the automatically provided container.

test/integration/targets/openshift_raw/aliases

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+cloud/openshift
+posix/ci/cloud/group4/openshift

test/integration/targets/openshift_raw/tasks/main.yml

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+- name: Install requirements
+  pip:
+    name: openshift
+
+- name: Create a project
+  openshift_raw:
+    name: testing
+    kind: project
+    description: My testing project
+    display_name: Testing Project
+    api_version: v1
+  register: output
+
+- name: show output
+  debug:
+    var: output
+
+- name: Create a service
+  openshift_raw:
+    state: present
+    resource_definition:
+      apiVersion: v1
+      kind: Service
+      metadata:
+        name: web
+        namespace: testing
+        labels:
+          app: galaxy
+          service: web
+      spec:
+        selector:
+          app: galaxy
+          service: web
+        ports:
+        - protocol: TCP
+          targetPort: 8000
+          name: port-8000-tcp
+          port: 8000
+  register: output
+
+- name: show output
+  debug:
+    var: output
+
+- name: Delete an existing PVC
+  openshift_raw:
+    name: web
+    namespace: testing
+    api: v1
+    kind: persistent_volume_claim
+    state: absent
+
+- name: Create PVC
+  openshift_raw:
+    state: present
+    inline: &pvc
+      apiVersion: v1
+      kind: PersistentVolumeClaim
+      metadata:
+        name: elastic-volume
+        namespace: testing
+      spec:
+        resources:
+          requests:
+            storage: 5Gi
+        accessModes:
+        - ReadWriteOnce
+
+- name: Show output
+  debug:
+    var: output
+
+- name: Create PVC
+  openshift_raw:
+    state: present
+    inline: *pvc
+  register: output
+
+- name: Show output
+  debug:
+    var: output
+
+- name: PVC should be idempotent
+  assert:
+    that: not output.changed
+
+- name: Delete an existing deployment config
+  openshift_raw:
+    name: elastic
+    namespace: testing
+    api: v1
+    kind: DeploymentConfig
+    state: absent
+
+- name: Create deployment config
+  openshift_raw:
+    state: present
+    inline: &dc
+      apiVersion: v1
+      kind: DeploymentConfig
+      metadata:
+        name: elastic
+        labels:
+          app: galaxy
+          service: elastic
+        namespace: testing
+      spec:
+        template:
+          metadata:
+            labels:
+              app: galaxy
+              service: elastic
+          spec:
+            containers:
+              - name: elastic
+                volumeMounts:
+                - mountPath: /usr/share/elasticsearch/data
+                  name: elastic-volume
+                command: ['elasticsearch']
+                image: 'ansible/galaxy-elasticsearch:2.4.6'
+            volumes:
+            - name: elastic-volume
+              persistentVolumeClaim:
+              claimName: elastic-volume
+        replicas: 1
+        strategy:
+          type: Rolling
+  register: output
+
+- name: Show output
+  debug:
+    var: output