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Amazon Elastic Kubernetes Service Anywhere Bare Metal on Dell PowerFlex
Introduction PowerFlex product overview Solution architecture Installing an Amazon EKS Anywhere Bare Metal cluster on Dell PowerFlex Creating an Amazon EKS Anywhere Bare Metal cluster Validating the cluster deployment Installing the PowerFlex CSI driver Deployment tests and validation
Overview
Use case 1: Provision PVC volumes with PowerFlex CSI driver
Use case 2: Extend PVC volumes with PowerFlex CSI
Use case 3: Snapshot with PowerFlex CSI
Amazon EKS Connector Conclusion Hardware qualification details References

Use case 3: Snapshot with PowerFlex CSI

Home > Storage > PowerFlex > White Papers > Amazon Elastic Kubernetes Service Anywhere Bare Metal on Dell PowerFlex > Use case 3: Snapshot with PowerFlex CSI

Use case 3: Snapshot with PowerFlex CSI

  • This use case describes how to take a snapshot with PowerFlex CSI:

    • The CSI Functionality test scripts are used for this test case. When the CSI driver is deployed using Helm, it provides several test scripts which can be used to ensure that it is functioning correctly. 
    • The tests run in the following example, creates two persistent volumes and creates snapshots then deletes snapshots of the volumes. The following YAML file is used to deploy the Pod with the PVC:

    apiVersion: v1

    kind: ServiceAccount

    metadata:

        name: vxflextest

        namespace: helmtest-vxflexos

    ---

    kind: StatefulSet

    apiVersion: apps/v1

    metadata:

        name: vxflextest

        namespace: helmtest-vxflexos

    spec:

        selector:

            matchLabels:

              app: vxflextest

        serviceName: 2vols

        template:

          metadata:

            labels:

              app: vxflextest

          spec:

            serviceAccount: vxflextest

            containers:

              - name: test

                image: docker.io/centos:latest

                command: [ "/bin/sleep", "3600" ]

                volumeMounts:

                  - mountPath: "/data0"

                    name: pvol0

                  - mountPath: "/data1"

                    name: pvol1

            volumes:

              - name: pvol0

                persistentVolumeClaim:

                  claimName: pvol0

              - name: pvol1

                persistentVolumeClaim:

                  claimName: pvol1

         The following YAML file is used to deploy the Pod 1 with the PVC:

    apiVersion: snapshot.storage.k8s.io/v1

    kind: VolumeSnapshot

    metadata:

      name: pvol0-snap1

      namespace: helmtest-vxflexos

    spec:

      volumeSnapshotClassName: vxflexos-snapclass

      source:

        persistentVolumeClaimName: pvol0

        The following YAML file is used to provision the PVC:

    apiVersion: snapshot.storage.k8s.io/v1

    kind: VolumeSnapshot

    metadata:

      name: pvol0-snap2

      namespace: helmtest-vxflexos

    spec:

      volumeSnapshotClassName: vxflexos-snapclass

      source:

        persistentVolumeClaimName: pvol0

        The following script is used for the Snapshot test.

    #!/bin/bash

    NS=helmtest-vxflexos

    source ./common.bash

     

    echo "creating snap1 of pvol0"

    kubectl create -f snap1.yaml

    sleep 10

    kubectl get volumesnapshot -n ${NS}

    kubectl describe volumesnapshot -n ${NS}

    sleep 10

    echo "creating snap2 of pvol0"

    kubectl create -f snap2.yaml

    sleep 10

    kubectl describe volumesnapshot -n ${NS}

    sleep 10

    echo "deleting snapshots..."

    kubectl delete volumesnapshot pvol0-snap1 -n ${NS}

    sleep 10

    kubectl delete volumesnapshot pvol0-snap2 -n ${NS}

    sleep 10

    kubectl get volumesnapshot -n ${NS}

       The following sample shows the output of the test:

    $ bash ./snaptest.sh

    creating snap1 of pvol0

    volumesnapshot.snapshot.storage.k8s.io/pvol0-snap1 created

    NAME          READYTOUSE   SOURCEPVC   SOURCESNAPSHOTCONTENT   RESTORESIZE   SNAPSHOTCLASS        SNAPSHOTCONTENT   CREATIONTIME   AGE

    pvol0-snap1                pvol0                                             vxflexos-snapclass                                    10s

    Name:         pvol0-snap1

    Namespace:    helmtest-vxflexos

    Labels:       <none>

     

    Annotations:  <none>

    API Version:  snapshot.storage.k8s.io/v1

    Kind:         VolumeSnapshot

    Metadata:

      Creation Timestamp:  2022-07-13T15:51:57Z

      Generation:          1

      Managed Fields:

        API Version:  snapshot.storage.k8s.io/v1

        Fields Type:  FieldsV1

        fieldsV1:

          f:spec:

            .:

            f:source:

              .:

              f:persistentVolumeClaimName:

            f:volumeSnapshotClassName:

        Manager:         kubectl-create

        Operation:       Update

        Time:            2022-07-13T15:51:57Z

      Resource Version:  7151834

      UID:               fe7fc0f8-120b-4404-bca9-f79ededce1cb

    Spec:

      Source:

        Persistent Volume Claim Name:  pvol0

      Volume Snapshot Class Name:      vxflexos-snapclass

    Events:                            <none>

    creating snap2 of pvol0

    volumesnapshot.snapshot.storage.k8s.io/pvol0-snap2 created

    Name:         pvol0-snap1

    Namespace:    helmtest-vxflexos

    Labels:       <none>

    Annotations:  <none>

    API Version:  snapshot.storage.k8s.io/v1

    Kind:         VolumeSnapshot

    Metadata:

      Creation Timestamp:  2022-07-13T15:51:57Z

      Generation:          1

      Managed Fields:

        API Version:  snapshot.storage.k8s.io/v1

        Fields Type:  FieldsV1

        fieldsV1:

          f:spec:

            .:

            f:source:

              .:

              f:persistentVolumeClaimName:

            f:volumeSnapshotClassName:

        Manager:         kubectl-create

        Operation:       Update

        Time:            2022-07-13T15:51:57Z

      Resource Version:  7151834

      UID:               fe7fc0f8-120b-4404-bca9-f79ededce1cb

    Spec:

      Source:

        Persistent Volume Claim Name:  pvol0

      Volume Snapshot Class Name:      vxflexos-snapclass

    Events:                            <none>

     

     

    Name:         pvol0-snap2

    Namespace:    helmtest-vxflexos

    Labels:       <none>

    Annotations:  <none>

    API Version:  snapshot.storage.k8s.io/v1

    Kind:         VolumeSnapshot

    Metadata:

      Creation Timestamp:  2022-07-13T15:52:17Z

      Generation:          1

      Managed Fields:

        API Version:  snapshot.storage.k8s.io/v1

        Fields Type:  FieldsV1

        fieldsV1:

          f:spec:

            .:

            f:source:

              .:

              f:persistentVolumeClaimName:

            f:volumeSnapshotClassName:

        Manager:         kubectl-create

        Operation:       Update

        Time:            2022-07-13T15:52:17Z

      Resource Version:  7151901

      UID:               b915f17e-5f15-48ab-a4c7-25c3901e97ca

    Spec:

      Source:

        Persistent Volume Claim Name:  pvol0

      Volume Snapshot Class Name:      vxflexos-snapclass

    Events:                            <none>

    deleting snapshots...

    volumesnapshot.snapshot.storage.k8s.io "pvol0-snap1" deleted

    volumesnapshot.snapshot.storage.k8s.io "pvol0-snap2" deleted

    No resources found in helmtest-vxflexos namespace.