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StorPool CSI

Overview

The StorPool CSI driver enables CSI-compliant COs e.g. Kubernetes, to dynamically provision and attach StorPool volumes. Currently, the driver only supports the StorPool native protocol, hence it's required that all Kubernetes hosts have the StorPool native client service (storpool_block) configured and running.

Deployment

The StorPool CSI driver can be deployed using the precompiled manifests inside the manifests/ directory. The deployment procedure assumes that StorPool is already installed and configured. The procedure looks like this:

  1. Apply the ControllerPlugin and NodePlugin manifests:
kubectl apply -f manifests/*

Please note, the manifests will create all respective resource inside the kube-system namespace. Feel free to edit them if you want to create the resources elsewhere.

  1. Create a StorageClass resource. Mapping a StorageClass to a StorPool template allows the Kubernetes operator to utilize multiple storage media if such is present in the StorPool cluster. More information on StorPool templates can be found here. Below you can find an example StorageClass:
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: storpool-nvme
provisioner: csi.storpool.com
allowVolumeExpansion: true
parameters:
  template: nvme
volumeBindingMode: WaitForFirstConsumer
  1. Finally, one can create a PVC to test if the CSI is configured properly. Please note that the StorPool CSI supports only the ReadWriteOnce access mode.
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: test-storpool-pvc
spec:
  storageClassName: storpool-nvme
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi