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Block storage allows a single pod to mount storage. This page shows how to create a simple web application on Kubernetes using persistent volumes enabled by Rook.

Provision Storage

Note

This sample requires at least 1 OSD per node, with each OSD located on 3 different nodes.

Before Rook can provision storage, a StorageClass and CephBlockPool need to be created. This will allow Kubernetes to interoperate with Rook when provisioning PVs. So let's create these two components

SC and CephBlockPool 
# The file, located in "rook/cluster/examples/kubernetes/ceph/csi/rbd", already contains both components
$ kubectl create -f storageclass.yaml

Inside the same folder there are other files, including pod.yaml and pvc.yaml, useful for carrying out some quick tests.

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