Customizable template for OpenShift PostgreSQL deployment

`oc new-app --template=postgresql-persistent` has been kind of a pain. It would attempt to create a Persistent Volume, but does not allow you to specify the storageClass.

This code assumes that a Persistent Volume is already available and will fail with a helpful error message if it is not.

Signed-off-by: Shane McDonald <me@shanemcd.com>

installer/roles/kubernetes/tasks/openshift.yml

@@ -29,11 +29,6 @@
   when: openshift_token is defined
   no_log: true
 
-- name: Set postgresql service name
-  set_fact:
-    postgresql_service_name: "postgresql"
-  when: "pg_hostname is not defined or pg_hostname == ''"
-
 - name: Get Project Detail
   shell: "{{ openshift_oc_bin }} get project {{ awx_openshift_project }}"
   register: project_details
@@ -42,3 +37,24 @@
 - name: Create AWX Openshift Project
   shell: "{{ openshift_oc_bin }} new-project {{ awx_openshift_project }}"
   when: project_details.rc != 0
+
+- name: Ensure PostgreSQL PVC is available
+  block:
+    - name: Check PVC status
+      command: "{{ openshift_oc_bin }} get pvc {{ openshift_pg_pvc_name }} -n {{ awx_openshift_project }} -o=jsonpath='{.status.phase}'"
+      register: pg_pvc_status
+      ignore_errors: yes
+
+    - name: Ensure PostgreSQL PVC is available
+      assert:
+        that:
+          - pg_pvc_status.stdout == "Bound"
+        msg: "Ensure a PVC named '{{ openshift_pg_pvc_name }}' is created and bound in the '{{ awx_openshift_project }}' namespace."
+  when:
+    - pg_hostname is not defined or pg_hostname == ''
+    - openshift_pg_emptydir is defined and openshift_pg_emptydir != true
+
+- name: Set postgresql service name
+  set_fact:
+    postgresql_service_name: "postgresql"
+  when: "pg_hostname is not defined or pg_hostname == ''"