3.6. Configuring the Block Storage Image-Volume cache feature

Procedure

1. Open your OpenStackControlPlane CR file, openstack_control_plane.yaml, and add the identifiers for your cinder-internal project and project user to the cinder template. In this example, you are using Red Hat Ceph Storage as the back end for the Block Storage service.

   Example:

   apiVersion: core.openstack.org/v1beta1
   kind: OpenStackControlPlane
   spec:
     extraMounts:
       ...
     cinder:
       template:
         cinderVolumes:
           ceph:
             customServiceConfig: |
               [DEFAULT]
               cinder_internal_tenant_project_id = <project_id>
               cinder_internal_tenant_user_id = <user_id>
               ...

   • Replace <project_id> with the ID of your cinder-internal project.
   • Replace <user_id> with the ID of your cinder-internal project user.

2. Add the following parameters to enable Image-Volume cache and to configure the size limit of the cache and the maximum number of images that the cache can store:

   Example:

   ...
             customServiceConfig: |
               [DEFAULT]
               ...
               [ceph]
               image_volume_cache_enabled = True
               image_volume_cache_max_size_gb = <max_size>
               image_volume_cache_max_count = <max_number>
   ...

   • Replace <max_size> with the size limit of the cache in GB.
   • Replace <max_number> with the maximum number of images to store in the cache.

3. Update the control plane:

   $ oc apply -f openstack_control_plane.yaml -n openstack

4. Wait until RHOCP creates the resources related to the OpenStackControlPlane CR. Run the following command to check the status:

   $ oc get openstackcontrolplane -n openstack

   The OpenStackControlPlane resources are created when the status is "Setup complete".

   提示

   Append the -w option to the end of the get command to track deployment progress.