In the case of Disaster Recovery failover, the
user expected to create the static PVC's. We have
planned not to go with the PVC name and namespace
for many reasons (as in kubernetes it's planned to
support PVC transfer to a new namespace with a
different name and with new features coming in
like data populator etc). For now, we are
planning to go with static PVC's to support
async mirroring.
During Async mirroring only the RBD images are
mirrored to the secondary site, and when the
user creates the static PVC's on the failover
we need to regenerate the omap data. The
volumeHandler in PV spec is an encoded string
which contains clusterID and poolID and image UUID,
The clusterID and poolID won't remain same on both
the clusters, for that cephcsi need to generate the
new volume handler and its to create a mapping
between new volume handler and old volume handler
with that whenever cephcsi gets csi requests it
check if the mapping exists it will pull the new
volume handler and continues other operations.
The new controller watches for the PVs created,
It checks if the omap exists if it doesn't it
will regenerate the entire omap data.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
in case of mirrored image, if the image is
primary a watcher will be added by the rbd
mirror deamon on the rbd image.
we have to consider 2 watcher to check image
is in use.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
incase of async mirroring the volume UUID is
retrieved from the volume name, instead of cephcsi
generating a new UUID it should reserve the passed
UUID it will be useful when we support both metro DR
and async mirroring on a kubernetes clusters.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
An rbd image can have a maximum number of
snapshots defined by maxsnapshotsonimage
On the limit is reached the cephcsi will
start flattening the older snapshots and
returns the ABORT error message, The Request
comes after this as to wait till all the
images are flattened (this will increase the
PVC creation time. Instead of waiting till
the maximum snapshots on an RBD image, we can
have a soft limit, once the limit reached
cephcsi will start flattening the task to
break the chain. With this PVC creation time
will only be affected when the hard limit
(minsnapshotsonimage) reached.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
The function isCloneRetryError verifies
if the clone error is `pending` or
`in-progress` error.
Co-authored-by: Madhu Rajanna <madhupr007@gmail.com>
Signed-off-by: Yug <yuggupta27@gmail.com>
In certain cases, clone status can be 'pending'.
In that case, abort error message should be
returned similar to that during 'in-progress'
state.
Co-authored-by: Madhu Rajanna <madhupr007@gmail.com>
Signed-off-by: Yug <yuggupta27@gmail.com>
There is a type-check on BytesQuota after calling SubVolumeInfo() to see
if the value is supported. In case no quota is configured, the value
Infinite is returned. This can not be converted to an int64, so the
original code returned an error.
It seems that attaching/mounting sometimes fails with the following
error:
FailedMount: MountVolume.MountDevice failed for volume "pvc-0e8fdd18-873b-4420-bd27-fa6c02a49496" : rpc error: code = Internal desc = subvolume csi-vol-0d68d71a-1f5f-11eb-96d2-0242ac110012 has unsupported quota: infinite
By ignoring the quota of Infinite, and not setting a quota in the
Subvolume object, this problem should not happen again.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The implementation of getOMapValues assumed that the number of key-value
pairs assigned to the object would be close to the number of keys
being requested. When the number of keys on the object exceeded the
"listExcess" value the function would fail to read additional keys
even if they existed in the omap.
This change sets a large fixed "chunk size" value and keeps reading
key-value pairs as long as the callback gets called and increments
the numKeys counter.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
When using go-ceph and the volumeOptions.Connect() call, the credentials
are not needed once the connection is established.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reduce the number of calls to the `ceph fs` executable to improve
performance of CephFS volume resizing.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This prepares resizeVolume() so that the volumeOptions.conn can be used
for connecting with go-ceph and use the connection cache.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
We have below exported function in credentials.go which is not
called from anywhere in the repo. Removing it for the same reason.
```
// NewCredentials generates new credentials when id and key
// are provided.
func NewCredentials(id, key string) (*Credentials, error) {
...
```
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
`cap` builtin function returns the capacity of a type. Its not
good practice to use this builtin function for other variable
names, removing it here
Ref# https://golang.org/pkg/builtin/#cap
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
golang-ci suddenly complains about the following issue
internal/cephfs/util.go:41:1: directive `// nolint:unparam // todo:program values has to be revisited later` is unused for linter unparam (nolintlint)
// nolint:unparam // todo:program values has to be revisited later
^
Dropping the comment completely seems to fix it. Ideally
execCommandJSON() will get removed once the migration to go-ceph is
complete.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
volJournal.Connect() got the error on err2 variable, however
the return was on variable err which hold the error return of
DecomposeCSIID() which is wrong. This cause the error return wrongly
parsed and pushed from the caller. From now on, we are reusing the
err variable to hold and revert the error of volJournal.Connect().
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Previously the purgeVolume error was ignored due to wrong error variable
check in the createVolume. With this change it checks on the proper error.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
The allocated, and potentially connected, volumeOptions object in
newVolumeOptionsFromVolID() is not cleaned-up in case of errors. This
could cause resource leaks.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Without connection, follow-up oparations on the volumeOptions object
will cause a panic. This should fix a regression in CephFS testing.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
All the previous condition checks exit from the function and
when it reach to this block its obvious that error is non nil,
we dont need an extra check here.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
There is no need to pass all secrets on to newVolumeOptions(), it only
needs the credentials. As the caller of newVolumeOptions() already has
the credentials generated, just pass them along instead of the raw
secrets.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The credentials are not used anymore, the volume object is already
connected to the cluster when createVolume() is called.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The go-ceph CephFS Admin API needs a rados.Conn to connect the Admin
interface to the Ceph cluster. As the rados.Conn is internal to the
ClusterConnection type, add GetFSAdmin() to create a new FSAdmin
instance for a specific connection.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Add the ClusterConnection to the volumeOptions type, so that future use
of go-ceph can connect to the Ceph cluster.
Once a volumeOptions object is not needed anymore, it needs to get
destroyed to free associated resources like the ClusterConnection.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The error check condition in genVolFromID() is always false as far as
code reading/workflow goes. Removing it for the same reason.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
cephcsi uses cli for fetching snap list as well as to check the
snapshot namespace, replaced that with go-ceph calls.
Signed-off-by: Mudit Agarwal <muagarwa@redhat.com>
return a proper error message to the user when
the subvolume has the snapshots and it cannot
be removed until the snapshots on the subvolume
have to be deleted.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
When passing
fuseMountOptions: debug
in the StorageClass, the mount options passed on the ceph-fuse
commandline result in "-o nonempty ,debug". The additional space before
the ",debug" causes the mount command to fail.
Fixes: 1485
Signed-off-by: Niels de Vos <ndevos@redhat.com>
The subvolume features consists the list of features, which if includes
"snapshot-autoprotect", result in query based approach to
detecting the need for protect/unprotect.
If "snapshot-autoprotect" feature is present, The UnprotectSnapshot
call should be treated as a no-op
Signed-off-by: Yug <yuggupta27@gmail.com>
The subvolume features consists the list of features, which if includes
"snapshot-autoprotect", result in query based approach to
detecting the need for protect/unprotect.
If "snapshot-autoprotect" feature is present, The ProtectSnapshot
call should be treated as a no-op
Signed-off-by: Yug <yuggupta27@gmail.com>
Use subvolume info to fetch the subvolume path.
If `subvolume info` command is not available,
use `getpath` command instead.
Signed-off-by: Yug <yuggupta27@gmail.com>
Snapshots can be retained even after subvolume deletion in
Ceph 14.2.12. Adding support for the same in ceph-csi.
Signed-off-by: Yug <yuggupta27@gmail.com>
It doesnot make sense to allow the creation of empty
volumes with readonly access, this commit allows the
creation of volume which is having readonly capabilities
only if the content source is set for the volume.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
It doesnot make sense to allow the creation of empty
volumes which is going to be accessed with readonly mode,
this commit allows the creation of volume which is having
readonly capabilities only if the content source is set
for the volume.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This spec add the extra capability to node and controller
volume to report volume condition of a pv..etc.
Refer # https://github.com/ceph/ceph-csi/issues/1356
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Form kubernetes v1.19 onwards NodeRequest is getting volume path
in StagingTargetPath instead of VolumePath, cephcsi should also
use the same.
Signed-off-by: Mudit Agarwal <muagarwa@redhat.com>
updateVolWithImageInfo() is currently executing an rbd command
to get details about an RBD image. Replaced it with the
required go-ceph functions.
Signed-off-by: Mudit Agarwal <muagarwa@redhat.com>
in case of clone failure, we need to first delete
the clone and the snapshot from which we created
the clone, then as part of cleanup we need to remove
the temporary cloned image and the temporary snapshot
created on the parent image.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
we should not return the CLI errors in GRPC errors
we need to return proper readable error messages
to the user for better understanding and better
debugging.
updates #1242
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
At CSI spec < 1.2.0, there was no volumecapability in the
expand request. However its available from v1.2+ which allows
us to declare the node operations based on the volume mode.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
currently the lock is not released which is
taken on the request name. this is causing issues
when the subvolume is requested for delete.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
execCommandErr returns both error and stderror
message. checking strings.HasPrefix is not helpful
as the stderr will be the first string. its good
to do string comparison and find out that error
is volume not found error.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
rename FatalLog to FatalLogMsg to keep functions
in parity functions ends with Msg if its only message
logging.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
as we have 2 functions for logging. one for logging
with message and another one is for logging with
context. renamed ErrorLog to ErrorLogMsg to log
with messages.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
if the image is created without flattening image-feature
the image will get few image-features by default, deep-flatten
is one of them. if the image doesnot have any parent
the rbd image flattening will fail, This commit discards
error message if the image doesnt have any parent.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
merging of https://github.com/ceph/ceph-csi/pull/1035
broken the cephcsi building. This commits fixes
the build issue.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Make sure to operate within the namespace if any given
when dealing with rbd images and snapshots and their journals.
Signed-off-by: Mehdy Khoshnoody <mehdy.khoshnoody@gmail.com>
Also add functionality to generate snap from request
and to get mon and clusterID from the request
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
