feat: allow customisation of pvc accessMode

By allowing WRX as an option allows us to run multiple glance-api
This is useful when using CephFS rook for the pvc

Change-Id: Ibcd686c78a173cdd4d101d3617ed1f3c83342e1f

glance/Chart.yaml

@@ -14,7 +14,7 @@ apiVersion: v1
 appVersion: v1.0.0
 description: OpenStack-Helm Glance
 name: glance
-version: 0.4.24
+version: 0.4.25
 home: https://docs.openstack.org/glance/latest/
 icon: https://www.openstack.org/themes/openstack/images/project-mascots/Glance/OpenStack_Project_Glance_vertical.png
 sources:

glance/templates/pvc-images.yaml

@@ -25,7 +25,7 @@ metadata:
     helm.sh/resource-policy: keep
   {{- end }}
 spec:
-  accessModes: [ "ReadWriteOnce" ]
+  accessModes: {{ .Values.volume.accessModes }}
   resources:
     requests:
       storage: {{ .Values.volume.size }}

glance/values.yaml

@@ -424,6 +424,8 @@ network:
 volume:
   class_name: general
   size: 2Gi
+  accessModes:
+    - ReadWriteOnce
 
 dependencies:
   dynamic:

releasenotes/notes/glance.yaml

@@ -58,4 +58,5 @@ glance:
   - 0.4.22 Enable custom annotations for Openstack secrets
   - 0.4.23 Update images used by default
   - 0.4.24 Do not attach backend pvc to storage init pod
+  - 0.4.25 Allow customisation of pvc storage accessMode so we can run multiple api pods
 ...