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docs/doc/source/storage/kubernetes/default-behavior-of-the-rbd-provisioner.rst
Juanita-Balaraj 63cd4f5fdc CephFS RWX Support in Host-based Ceph 
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Change-Id: Icd7b08ab69273f6073b960a13cf59905532f851a
Signed-off-by: Juanita-Balaraj <juanita.balaraj@windriver.com>
2021-05-03 16:39:45 -04:00

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Default Behavior of the RBD Provisioner

The default Ceph Cluster configuration set up during installation contains a single storage tier, storage, containing all the .

The default provisioner service runs within the kube-system namespace and has a single storage class, 'general', which is configured to:

  • use the default 'storage' ceph storage tier
  • use a kube-rbd ceph pool, and
  • only support PVC requests from the following namespaces: kube-system, default and kube-public.

The full details of the rbd-provisioner configuration can be viewed with the following commands:

~(keystone_admin)$ system helm-override-list platform-integ-apps

This command provides the chart names and the overrides namespaces.

~(keystone_admin)$ system helm-override-show platform-integ-apps rbd-provisioner kube-system

See Creating ReadWriteOnce Persistent Volume Claims <storage-configuration-create-readwriteonce-persistent-volume-claims> and Mounting ReadWriteOnce Persistent Volumes in Containers <storage-configuration-mount-readwriteonce-persistent-volumes-in-containers> for an example of how to create and mount a ReadWriteOnce from the 'general' storage class.