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Remove redundant pool parameter from snapshot class

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The SnapshotClass for RBD requires a pool parameter. This is redundant
as a snapshot is not created on a different pool than the source image
of the snapshot (refer rbd man page).

Further, when a snapshot needs to be created its source CSI VolumeID
is passed to the creation call, and hence the source volumes pool
needs to be reused to create the snapshot.

Similarly to clone a snapshot, the create request would come in with a
SnapshotID to help identify the snapshot pool, and the same create
request parameters would contain the storage class based pool parameter
to create the clone into (as clones can be in different pools as
compared to their parent snapshots).

Thus, the parameter pool seems redundant in the snapshot class and
should be removed to improve ease of use.

Fixes #379

Signed-off-by: ShyamsundarR <srangana@redhat.com>
This commit is contained in:
ShyamsundarR
2019-05-31 14:43:38 -04:00
committed by mergify[bot]
parent 075861e214
commit 9a03d735a2
3 changed files with 3 additions and 11 deletions
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2
examples/rbd/snapshotclass.yaml
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@ -14,7 +14,5 @@ parameters:
# represent the Ceph cluster in clusterID below
clusterID: <cluster-id>
pool: rbd
csi.storage.k8s.io/snapshotter-secret-name: csi-rbd-secret
csi.storage.k8s.io/snapshotter-secret-namespace: default