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CSI migration of Cinder volume plugin is on by default

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Document that OpenStack Cinder CSI migration is enabled by default in
Kubernetes 1.21 and that corresponding CSI driver must be installed.
This commit is contained in:
Jan Safranek
2021-03-10 17:28:01 +01:00
parent 74b2a80ef2
commit f7e5f7cae0
1 changed files with 9 additions and 7 deletions
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content/en/docs/concepts/storage/volumes.md
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@@ -208,14 +208,16 @@ spec:
#### OpenStack CSI migration
{{< feature-state for_k8s_version="v1.18" state="beta" >}}
{{< feature-state for_k8s_version="v1.21" state="beta" >}}
The `CSIMigration` feature for Cinder, when enabled, redirects all plugin operations
from the existing in-tree plugin to the `cinder.csi.openstack.org` Container
Storage Interface (CSI) Driver. In order to use this feature, the [OpenStack Cinder CSI
Driver](https://github.com/kubernetes/cloud-provider-openstack/blob/master/docs/cinder-csi-plugin/using-cinder-csi-plugin.md)
must be installed on the cluster and the `CSIMigration` and `CSIMigrationOpenStack`
beta features must be enabled.
The `CSIMigration` feature for Cinder is enabled by default in Kubernetes 1.21.
It redirects all plugin operations from the existing in-tree plugin to the
`cinder.csi.openstack.org` Container Storage Interface (CSI) Driver.
[OpenStack Cinder CSI Driver](https://github.com/kubernetes/cloud-provider-openstack/blob/master/docs/cinder-csi-plugin/using-cinder-csi-plugin.md)
must be installed on the cluster.
The feature can be disabled by un-setting `CSIMigrationOpenStack` beta feature
gate. When disabled, in-tree Cinder volume plugin will be responsible for
all storage related tasks, as it was in the previous Kubernetes releases.
### configMap