Add cinder_csi_ignore_volume_az (#7624)

Signed-off-by: Cedric Hnyda <cedric.hnyda@itera.io>

docs/openstack.md

@@ -104,6 +104,12 @@ The new cloud provider is configured to have Octavia by default in Kubespray.
   cinder_topology: true
   ```
 
+- Enabling `cinder_csi_ignore_volume_az: true`, ignores volumeAZ and schedules on any of the available node AZ.
+
+  ```yaml
+  cinder_csi_ignore_volume_az: true
+  ```
+
 - If you are using OpenStack loadbalancer(s) replace the `openstack_lbaas_subnet_id` with the new `external_openstack_lbaas_subnet_id`. **Note** The new cloud provider is using Octavia instead of Neutron LBaaS by default!
 - Enable 3 feature gates to allow migration of all volumes and storage classes (if you have any feature gates already set just add the 3 listed below):
 

roles/kubernetes-apps/csi_driver/cinder/templates/cinder-csi-cloud-config.j2

@@ -22,6 +22,9 @@ ca-file="{{ kube_config_dir }}/cinder-cacert.pem"
 {% if cinder_blockstorage_version is defined %}
 bs-version={{ cinder_blockstorage_version }}
 {% endif %}
+{% if cinder_csi_ignore_volume_az is defined %}
+ignore-volume-az={{ cinder_csi_ignore_volume_az | bool }}
+{% endif %}
 {% if node_volume_attach_limit is defined and node_volume_attach_limit != "" %}
 node-volume-attach-limit="{{ node_volume_attach_limit }}"
-{% endif %}
+{% endif %}

roles/kubespray-defaults/defaults/main.yaml

@@ -375,6 +375,7 @@ openstack_blockstorage_ignore_volume_az: "{{ volume_cross_zone_attachment | defa
 # Set Cinder topology zones (can be multiple zones, default not set)
 # cinder_topology_zones:
 #   - nova
+cinder_csi_ignore_volume_az: "{{ volume_cross_zone_attachment | default('false') }}"
 
 ## When OpenStack is used, if LBaaSv2 is available you can enable it with the following 2 variables.
 openstack_lbaas_enabled: false