This is test in Mitaka on Ceph Storage

Enable Cinder Cache Image on Ceph

Create a normal user and a normal project. No need to have any special privileges on the user or project

If you use Juju as your deployment tool, Add the following into /etc/cinder/cinder.conf ( via juju config-flags, cinder cache via template )

/etc/cinder/cinder.conf

[DEFAULT]
cinder_internal_tenant_project_id = PROJECT_ID
cinder_internal_tenant_user_id = USER_ID

[cinder-ceph]
image_volume_cache_enabled = True
image_volume_cache_max_size_gb = 400
image_volume_cache_max_count = 20

first time server creation would be slow due to first time cache, 2nd time server creation from the same Image creates faster.

Reference https://docs.openstack.org/mitaka/admin-guide/blockstorage_image_volume_cache.html (https://docs.openstack.org/mitaka/adm...)