Enable configuring mountOptions, reclaimPolicy and volumeBindingMode … (#10450)

* Enable configuring mountOptions, reclaimPolicy and volumeBindingMode for cinder-csi StorageClasses

* Check if class.mount_options is defined at all, before generating the option list

roles/kubernetes-apps/persistent_volumes/openstack/templates/openstack-storage-class.yml.j2

@@ -7,9 +7,21 @@ metadata:
   annotations:
     storageclass.kubernetes.io/is-default-class: "{{ class.is_default | default(false) | ternary("true","false") }}"
 provisioner: kubernetes.io/cinder
+{% if class.mount_options is defined %}
+mountOptions:
+{% for option in class.mount_options | default([]) %}
+  - "{{ option }}"
+{% endfor %}
+{% endif %}
 parameters:
 {% for key, value in (class.parameters | default({})).items() %}
   "{{ key }}": "{{ value }}"
 {% endfor %}
+{% if class.reclaim_policy is defined %}
+reclaimPolicy: "{{ class.reclaim_policy }}"
+{% endif %}
+{% if class.volume_binding_mode is defined %}
+volumeBindingMode: "{{ class.volume_binding_mode }}"
+{% endif %}
 allowVolumeExpansion: {{ expand_persistent_volumes }}
 {% endfor %}