Commit Graph

12 Commits

Author SHA1 Message Date
Niels de Vos
0a173a8a9e nfs: make DeleteVolume (more) idempotent
Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-08-03 19:43:16 +00:00
Madhu Rajanna
1952a9b4b3 ci: fix all linter errors found in golangci-lint
Fixing all the linter errors found in golang-ci
lint v1.46.2

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2022-06-03 12:55:54 +00:00
Rakshith R
894c20f792 nfs: add support for pvc-pvc clone
This commit adds support for pvc-pvc clone.
Only capability needed to be advertised, the
underlying support is already provided by cephfs
backend.

Signed-off-by: Rakshith R <rar@redhat.com>
2022-05-24 18:13:02 +00:00
Rakshith R
24515b509f nfs: add support for create & delete snapshot
This commits adds support for creation and
deletion of nfs snapshots based on cephfs.

Signed-off-by: Rakshith R <rar@redhat.com>
2022-05-24 18:13:02 +00:00
Niels de Vos
36e51402cb nfs: support ExpandVolume CSI procedure
There is not much the NFS-provisioner needs to do to expand a volume,
everything is handled by the CephFS components.

NFS does not need a resize on the node, so only ControllerExpandVolume
is required.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-05-10 17:43:59 +00:00
Niels de Vos
9d7faf850f nfs: delete the CephFS volume when the export is already removed
In case the NFS-export has already been removed from the NFS-server, but
the CSI Controller was restarted, a retry to remove the NFS-volume will
fail with an error like:

> GRPC error: ....: response status not empty: "Export does not exist"

When this error is reported, assume the NFS-export was already removed
from the NFS-server configuration, and continue with deleting the
backend volume.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-05-04 21:31:06 +00:00
Niels de Vos
2b71aac752 nfs: return gRPC status from CephFS CreateVolume failure
The NFS Controller returns a non-gRPC error in case the CreateVolume
call for the CephFS volume fails. It is better to return the gRPC-error
that the CephFS Controller passed along.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-04-19 08:23:16 +00:00
Niels de Vos
28369702d2 nfs: use go-ceph API for creating/deleting exports
Recent versions of Ceph allow calling the NFS-export management
functions over the go-ceph API.

This seems incompatible with older versions that have been tested with
the `ceph nfs` commands that this commit replaces.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-04-14 08:01:45 +00:00
Niels de Vos
1da19680b4 nfs: support new and old NFS-management commands
The `ceph nfs export ...` commands have changed in recent Ceph releases.
Use the most recent command as a default, fall back to the older command
when an error is reported.

This shoud make the NFS-provisioner work on any current Ceph version.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-03-31 11:28:40 +00:00
Niels de Vos
885295fcc9 nfs: store the NFS-cluster name in the journal
Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-03-28 11:23:17 +00:00
Niels de Vos
010fd816dd nfs: store the calling Context in NFSVolume
NFSVolume instances are short lived, they only extist for a certain gRPC
procedure. It is easier to store the calling Context in the NFSVolume
struct, than to pass it to some of the functions that require it.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-03-28 11:23:17 +00:00
Niels de Vos
6d83df9cc9 nfs: add basic provisioner with create/delete procedures
These NFS Controller and Identity servers are the base for the new
provisioner. The functionality is currently extremely limited, follow-up
PRs will implement various CSI procedures.

CreateVolume is implemented with the bare minimum. This makes it
possible to create a volume, and mount it with the
kubernetes-csi/csi-driver-nfs NodePlugin.

DeleteVolume unexports the volume from the Ceph managed NFS-Ganesha
service. In case the Ceph cluster provides multiple NFS-Ganesha
deployments, things might not work as expected. This is going to be
addressed in follow-up improvements.

Lots of TODO comments need to be resolved before this can be declared
"production ready". Unit- and e2e-tests are missing as well.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-03-28 11:23:17 +00:00