Rename pvc name var to be consistent with other backup variables

deploy/crds/awx.ansible.com_v1beta1_backup_cr.yaml

@@ -6,5 +6,5 @@ metadata:
 spec:
   tower_backup_pvc: ''
   tower_backup_size: ''
-  tower_postgres_storage_class: ''
+  tower_backup_storage_class: ''
   tower_postgres_configuration_secret: ''

roles/backup/README.md

@@ -30,7 +30,7 @@ metadata:
   namespace: my-namespace
 ```
 
-Finally, use `kubectl` to create the awx instance in your cluster:
+Finally, use `kubectl` to create the backup object in your cluster:
 
 ```bash
 #> kubectl apply -f backup-awx.yml
@@ -53,7 +53,7 @@ tower_backup_pvc: 'awx-backup-volume-claim'
 This role will automatically create a pvc using a Storage Class if provided:
 
 ```
-tower_postgres_storage_class: 'standard'
+tower_backup_storage_class: 'standard'
 tower_backup_size: '20Gi'
 ```
 

roles/backup/templates/backup_pvc.yml.j2

@@ -7,8 +7,8 @@ metadata:
 spec:
   accessModes:
     - ReadWriteOnce
-{% if tower_postgres_storage_class != '' %}
-  storageClassName: {{ tower_postgres_storage_class }}
+{% if tower_backup_storage_class != '' %}
+  storageClassName: {{ tower_backup_storage_class }}
 {% endif %}
   resources:
     requests:

roles/backup/vars/main.yml

@@ -7,7 +7,7 @@ tower_backup_pvc: ''
 tower_backup_size: ''
 
 # Specify storage class to determine how to dynamically create PVC's with
-tower_postgres_storage_class: ''
+tower_backup_storage_class: ''
 
 # Secret to lookup that provide the PostgreSQL configuration
 tower_postgres_configuration_secret: ''