Validation stonith device exists in OpenStack Platform HA cluster

Change-Id: I1ccb5ef2225fe2be15785083210921c44b8f00ca

validations/stonith-exists.yaml

@@ -0,0 +1,36 @@
+---
+- name: Validate stonith devices
+  hosts: controller
+  vars:
+    metadata:
+      name: stonith-exists
+      description: >
+        Verify that stonith devices are configured for your OpenStack Platform HA cluster.
+        We don't configure stonith device with TripleO Installer. Because the hardware
+        configuration may be differ in each environment and requires different fence agents.
+        How to configure fencing please read https://access.redhat.com/documentation/en/red-hat-openstack-platform/8/paged/director-installation-and-usage/86-fencing-the-controller-nodes
+      groups:
+        - post-deployment
+  become: true
+
+  tasks:
+  - name: Check if we are in HA cluster environment
+    register: pcs_cluster_status
+    command: pcs cluster status
+    failed_when: false
+    changed_when: false
+
+  - name: Get all currently configured stonith devices
+    when: "pcs_cluster_status.rc == 0"
+    register: stonith_devices
+    command: "pcs stonith"
+    changed_when: false
+
+  - name: Verify the stonith device are configured
+    fail:
+      msg: "Stonith devices are not configured."
+    when: >
+      pcs_cluster_status.rc == 0
+      and
+      'NO stonith devices configured' in stonith_devices.stdout
+