Documented some vars for adhoc playbook for openshift pv

Signed-off-by: Fabian Arrotin <[email protected]>

adhoc-openshift-pv.yml

@@ -1,7 +1,11 @@
 ---
 # This playbook is to create a persistent volume for openshift CI namespace
+# Needed variables as extra-vars:
+#  - pv_size (like 100Gi)
+#  - cico_project_name (registry)
+#  - host (where to execute command, like ocp-admin.ci.centos.org)
 # Example to run the playbook
-# ansible-playbook-ci playbooks/adhoc-openshift-pv.yml -e "env_prefix=ocp-stg" -e "host=n4-136.cloud.ci.centos.org" -e "pv_size=10Gi" -e "cico_project_name=test" 
+# ansible-playbook-ci playbooks/adhoc-openshift-pv.yml -e "host=n4-136.cloud.ci.centos.org" -e "pv_size=10Gi" -e "cico_project_name=test" 
 # The node on which we'll run this should have the exported NFS volume mounted locally
 # using variables from inventory:
 #   ocp_nfs_server: (like node.domain)

role-ocp-admin-node.yml

@@ -0,0 +1,24 @@
+---
+- hosts: hostgroup-role-ocp-admin-node
+  become: True
+  pre_tasks:
+    - name: Checking if no-ansible file is there
+      stat:
+        path: /etc/no-ansible
+      register: no_ansible
+
+    - name: Verifying if we can run ansible or not
+      assert:
+        that:
+          - "not no_ansible.stat.exists" 
+        msg: "/etc/no-ansible file exists so skipping ansible run on this node"
+
+  roles:
+    - ocp-admin-node
+
+  post_tasks:
+    - name: Touching ansible-run (monitored by Zabbix)
+      file:
+        path: /var/log/ansible.run
+        state: touch
+