CephFS: support omap data store in radosnamespace

[iPraveenParihar]

Describe what this PR does

This commit adds the support for storing the CephFS omap data in a namespace specified in the ceph-csi-config ConfigMap under cephFS.radosNamespace field.

If the radosNamespace is not set, the default radosNamespace will be used i.e, csi.

Related issues

Closes: #4599

Future concerns

Checklist:

• [x] Commit Message Formatting: Commit titles and messages follow guidelines in the developer guide.
• [x] Reviewed the developer guide on Submitting a Pull Request
• [x] Pending release notes updated with breaking and/or notable changes for the next major release.
• [x] Documentation has been updated, if necessary.
• [x] Unit tests have been added, if necessary.
• [x] Integration tests have been added, if necessary.

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[iPraveenParihar]

Initial test

configMap

{"clusterID":"rn","monitors":["10.96.180.5:6789"],"cephFS":{"radosNamespace":"rn","netNamespaceFilePath":"","subvolumeGroup":"","kernelMountOptions":"","fuseMountOptions":""},"rbd":{"netNamespaceFilePath":"","radosNamespace":""},"nfs":{"netNamespaceFilePath":""},"readAffinity":{"enabled":false,"crushLocationLabels":
[]},"namespace":""}

CephFS PVC created

pm@dhcp53-176:~$ k get pv pvc-983953db-919c-4f5d-a33e-9b59cdf80246 -o jsonpath='{.spec.csi.volumeAttributes.subvolumeName}'
csi-vol-c0ef71cc-8daa-47a4-953e-277095874736


volume omap data in radosNamespace rn

[root@c1 /]# rados ls -p myfs-metadata --namespace rn
csi.volume.c0ef71cc-8daa-47a4-953e-277095874736
csi.volumes.default
[root@c1 /]# rados listomapvals csi.volume.c0ef71cc-8daa-47a4-953e-277095874736 -p myfs-metadata --namespace rn
csi.imagename
value (44 bytes) :
00000000  63 73 69 2d 76 6f 6c 2d  63 30 65 66 37 31 63 63  |csi-vol-c0ef71cc|
00000010  2d 38 64 61 61 2d 34 37  61 34 2d 39 35 33 65 2d  |-8daa-47a4-953e-|
00000020  32 37 37 30 39 35 38 37  34 37 33 36              |277095874736|
0000002c

csi.volname
value (40 bytes) :
00000000  70 76 63 2d 39 38 33 39  35 33 64 62 2d 39 31 39  |pvc-983953db-919|
00000010  63 2d 34 66 35 64 2d 61  33 33 65 2d 39 62 35 39  |c-4f5d-a33e-9b59|
00000020  63 64 66 38 30 32 34 36                           |cdf80246|
00000028

csi.volume.owner
value (12 bytes) :
00000000  63 65 70 68 66 73 2d 72  61 64 6f 73              |cephfs-rados|
0000000c

[root@c1 /]# rados listomapvals csi.volumes.default -p myfs-metadata --namespace rn
csi.volume.pvc-983953db-919c-4f5d-a33e-9b59cdf80246
value (36 bytes) :
00000000  63 30 65 66 37 31 63 63  2d 38 64 61 61 2d 34 37  |c0ef71cc-8daa-47|
00000010  61 34 2d 39 35 33 65 2d  32 37 37 30 39 35 38 37  |a4-953e-27709587|
00000020  34 37 33 36                                       |4736|
00000024
[root@c1 /]#

CephFS snapshot created

pm@dhcp53-176:~$ k get vs cephfs-pvc-snap-rn -o jsonpath='{.status.boundVolumeSnapshotContentName}'
snapcontent-0b4c4472-b33b-4c85-af43-76cdd0c34375



 CephFS snapshot omap data

[root@c1 /]# rados ls -p myfs-metadata --namespace rn
csi.snap.510ab77e-fbe9-4a51-ad0d-0644c4616678
csi.snaps.default
csi.volume.c0ef71cc-8daa-47a4-953e-277095874736
csi.volumes.default
[root@c1 /]# rados listomapvals csi.snap.510ab77e-fbe9-4a51-ad0d-0644c4616678 -p myfs-metadata --namespace rn
csi.imagename
value (45 bytes) :
00000000  63 73 69 2d 73 6e 61 70  2d 35 31 30 61 62 37 37  |csi-snap-510ab77|
00000010  65 2d 66 62 65 39 2d 34  61 35 31 2d 61 64 30 64  |e-fbe9-4a51-ad0d|
00000020  2d 30 36 34 34 63 34 36  31 36 36 37 38           |-0644c4616678|
0000002d

csi.snapname value (45 bytes) : 00000000 73 6e 61 70 73 68 6f 74 2d 30 62 34 63 34 34 37 |snapshot-0b4c447| 00000010 32 2d 62 33 33 62 2d 34 63 38 35 2d 61 66 34 33 |2-b33b-4c85-af43| 00000020 2d 37 36 63 64 64 30 63 33 34 33 37 35 |-76cdd0c34375| 0000002d

csi.source value (44 bytes) : 00000000 63 73 69 2d 76 6f 6c 2d 63 30 65 66 37 31 63 63 |csi-vol-c0ef71cc| 00000010 2d 38 64 61 61 2d 34 37 61 34 2d 39 35 33 65 2d |-8daa-47a4-953e-| 00000020 32 37 37 30 39 35 38 37 34 37 33 36 |277095874736| 0000002c

[root@c1 /]# rados listomapvals csi.snaps.default -p myfs-metadata --namespace rn csi.snap.snapshot-0b4c4472-b33b-4c85-af43-76cdd0c34375 value (36 bytes) : 00000000 35 31 30 61 62 37 37 65 2d 66 62 65 39 2d 34 61 |510ab77e-fbe9-4a| 00000010 35 31 2d 61 64 30 64 2d 30 36 34 34 63 34 36 31 |51-ad0d-0644c461| 00000020 36 36 37 38 |6678| 00000024 [root@c1 /]#