first version

kubespray/project/roles/kubernetes-apps/persistent_volumes/openstack/defaults/main.yml

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+---
+persistent_volumes_enabled: false
+storage_classes:
+  - name: standard
+    is_default: true
+    parameters:
+      availability: nova

kubespray/project/roles/kubernetes-apps/persistent_volumes/openstack/tasks/main.yml

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+---
+- name: Kubernetes Persistent Volumes | Lay down OpenStack Cinder Storage Class template
+  template:
+    src: "openstack-storage-class.yml.j2"
+    dest: "{{ kube_config_dir }}/openstack-storage-class.yml"
+    mode: 0644
+  register: manifests
+  when:
+    - inventory_hostname == groups['kube_control_plane'][0]
+
+- name: Kubernetes Persistent Volumes | Add OpenStack Cinder Storage Class
+  kube:
+    name: storage-class
+    kubectl: "{{ bin_dir }}/kubectl"
+    resource: StorageClass
+    filename: "{{ kube_config_dir }}/openstack-storage-class.yml"
+    state: "latest"
+  when:
+    - inventory_hostname == groups['kube_control_plane'][0]
+    - manifests.changed

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

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+{% for class in storage_classes %}
+---
+kind: StorageClass
+apiVersion: storage.k8s.io/v1
+metadata:
+  name: "{{ class.name }}"
+  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 %}