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zfs-localpv/upgrade/README.md
Aman Gupta 7a3cbae3f1 Added readme file for upgrade scripts of refactoring CRDs 
Signed-off-by: Aman Gupta <aman.gupta@mayadata.io>
2020-04-15 14:02:20 +05:30

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From zfs-driver:v0.6 version ZFS-LocalPV related CRs are now grouped together in its own group called zfs.openebs.io. Here steps are mentioned for how to upgrade for refactoring the CRDs.

steps to upgrade:-

  1. Apply the new CRD
$ kubectl apply -f upgrade/crd.yaml
customresourcedefinition.apiextensions.k8s.io/zfsvolumes.zfs.openebs.io created
customresourcedefinition.apiextensions.k8s.io/zfssnapshots.zfs.openebs.io created
  1. run upgrade.sh
$ sh upgrade/upgrade.sh
zfsvolume.zfs.openebs.io/pvc-086a8608-9057-42df-b684-ee4ae8d35f71 created
zfsvolume.zfs.openebs.io/pvc-5286d646-c93d-4413-9707-fd95ebaae8c0 created
zfsvolume.zfs.openebs.io/pvc-74abefb8-8423-4b13-a607-7184ef088fb5 created
zfsvolume.zfs.openebs.io/pvc-82368c44-eee8-47ee-85a6-633a8023faa8 created
zfssnapshot.zfs.openebs.io/snapshot-dc61a056-f495-482b-8e6e-e7ddc4c13f47 created
zfssnapshot.zfs.openebs.io/snapshot-f9db91ea-529e-4dac-b2b8-ead045c612da created

` 3. upgrade the driver to v0.6

$ kubectl apply -f https://github.com/openebs/zfs-localpv/blob/v0.6.x/deploy/zfs-operator.yaml

For future releases if you want to upgrade from v0.4 or v0.5 to the newer version replace v0.6.x to the desired version. Check everything is good after upgrading the zfs-driver. Then run the cleanup script to remove old CRDs

  1. run cleanup.sh
$ sh upgrade/cleanup.sh
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
zfsvolume.openebs.io/pvc-086a8608-9057-42df-b684-ee4ae8d35f71 configured
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
zfsvolume.openebs.io/pvc-5286d646-c93d-4413-9707-fd95ebaae8c0 configured
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
zfsvolume.openebs.io/pvc-74abefb8-8423-4b13-a607-7184ef088fb5 configured
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
  svolume.openebs.io/pvc-82368c44-eee8-47ee-85a6-633a8023faa8 configured
zfsvolume.openebs.io "pvc-086a8608-9057-42df-b684-ee4ae8d35f71" deleted
zfsvolume.openebs.io "pvc-5286d646-c93d-4413-9707-fd95ebaae8c0" deleted
zfsvolume.openebs.io "pvc-74abefb8-8423-4b13-a607-7184ef088fb5" deleted
zfsvolume.openebs.io "pvc-82368c44-eee8-47ee-85a6-633a8023faa8" deleted
customresourcedefinition.apiextensions.k8s.io "zfsvolumes.openebs.io" deleted
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
zfssnapshot.openebs.io/snapshot-dc61a056-f495-482b-8e6e-e7ddc4c13f47 configured
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
zfssnapshot.openebs.io/snapshot-f9db91ea-529e-4dac-b2b8-ead045c612da configured
zfssnapshot.openebs.io "snapshot-dc61a056-f495-482b-8e6e-e7ddc4c13f47" deleted
zfssnapshot.openebs.io "snapshot-f9db91ea-529e-4dac-b2b8-ead045c612da" deleted
customresourcedefinition.apiextensions.k8s.io "zfssnapshots.openebs.io" deleted