For static volume, the user will manually mounts
already existing image as a volume to the application
pods. As its a rbd Image, if the PVC is of type
fileSystem the image will be mapped, formatted
and mounted on the node,
If the user resizes the image on the ceph cluster.
User cannot not automatically resize the filesystem
created on the rbd image. Even if deletes and
recreates the kubernetes objects, the new size
will not be visible on the node.
With this changes During the NodeStageVolumeRequest
the nodeplugin will check the size of the mapped rbd
image on the node using the devicePath. and also
the rbd image size on the ceph cluster.
If the size is not matching it will do the file
system resize on the node as part of the
NodeStageVolumeRequest RPC call.
The user need to do below operation to see new size
* Resize the rbd image in ceph cluster
* Scale down all the application pods using the static
PVC.
* Make sure no application pods which are using the
static PVC is running on a node.
* Scale up all the application pods.
Validate the new size in application pod mounted
volume.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
in NodeStage operation we are flattening
the image to support mounting on the older
clients. this commits moves it to a helper
function to reduce code complexity.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
During PVC snapshot/clone both kms config and passphrase needs to copied,
while for PVC restore only passphrase needs to be copied to dest rbdvol
since destination storageclass may have another kms config.
Signed-off-by: Rakshith R <rar@redhat.com>
This commit adds the logic to detect a passed in volumeID
is a migrated volume ID and if yes, the driver connect to the
backend cluster and clean/delete the image. The logic
only applied if its a migration volume ID. The migration volume ID
carry the information like mons, pool and image name which is
good enough for the driver to identify and connect to the backend
cluster for its operations.
migration volID format:
<mig>_mons-<monsHash>_image-<imageUID>_<poolHash>
Details on the hash values:
* MonsHash: this carry a hash value (md5sum) which will be acted as the
`clusterID` for the operations in this context.
* ImageUID: this is the unique UUID generated by kubernetes for the created
volume.
* PoolHash: this is an encoded string of pool name.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
as we are refractoring the cephfs code,
Moving all the core functions to a new folder
/pkg called core. This will make things easier
to implement. For now onwards all the core
functionalities will be added to the core
package.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
the migration nodestage request does not carry the 'clusterID' in it
and only monitors are available with the volumeContext. The volume
context flag 'migration=true' and 'static=true' flags allow us to
fill 'clusterID' from the passed in monitors to the volume Context,so
that rest of the static operations on nodestage can be proceeded as we
do treat static volumes today.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
as part of migration support, the clusterID has to be fetched
from passed in mon. Because the intree RBD storage class only
got monitor and not `clusterID` parameter support. However, in
CSI, SC has the `clusterID` parameter support but not mon. Due
to that we have to fetch the clusterID from config file for the
passed in mon and use it in our operations. This adds a helper
function to retrieve clusterID from passed in mon string.
Updates https://github.com/ceph/ceph-csi/issues/2509
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Currently, we delete the ceph client log file on unmap/detach.
This patch provides additional alternatives for users who would like to
persist the log files.
Strategies:
-----------
`remove`: delete log file on unmap/detach
`compress`: compress the log file to gzip on unmap/detach
`preserve`: preserve the log file in text format
Note that the default strategy will be remove on unmap, and these options
can be tweaked from the storage class
Compression size details example:
On Map: (with debug-rbd=20)
---------
$ ls -lh
-rw-r--r-- 1 root root 526K Sep 1 18:15
rbd-nbd-0001-0024-fed5480a-f00f-417a-a51d-31d8a8144c03-0000000000000003-d2e89c87-0b4d-11ec-8ea6-160f128e682d.log
On unmap:
---------
$ ls -lh
-rw-r--r-- 1 root root 33K Sep 1 18:15
rbd-nbd-0001-0024-fed5480a-f00f-417a-a51d-31d8a8144c03-0000000000000003-d2e89c87-0b4d-11ec-8ea6-160f128e682d.gz
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
Log:
internal/rbd/rbd_attach.go:424:2: hugeParam: dArgs is heavy (88 bytes);
consider passing it by pointer (gocritic)
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
Currently we return a !ready status if an image
is not found when a replication resync is issued.
We also return a !ready just post issuing a resync.
The change is to ensure we return errors in these
cases for the caller to retry the operation till
we can determine we are actually resyncing, and then
return !ready with nil errors.
Part of addressing:
https://github.com/csi-addons/volume-replication-operator/issues/101
Signed-off-by: Shyamsundar Ranganathan <srangana@redhat.com>
This commit:
- modifies GetMonsAndClusterID() to take clusterID instead of options.
- moves out validation of clusterID is set or not out of GetMonsAndClusterID().
- defines ErrClusterIDNotSet new error for reusability.
- add GetClusterID() to obtain clusterID from options.
Signed-off-by: Rakshith R <rar@redhat.com>
This commit adds capability to genVolFromVolumeOptions() to fetch
mapped clusted-id & mon ips for mirrored PVC on secondary cluster
which may have different cluster-id.
This is required for NodeStageVolume().
We also don't need to check for mapping during volume create requests,
so it can be disabled by passing a bool checkClusterIDMapping as false.
GetMonsAndClusterID() is modified to accept bool checkClusterIDMapping
based on which clustermapping is checked to fetch mapped cluster-id and
mon-ips.
Signed-off-by: Rakshith R <rar@redhat.com>
at present, eventhough the checkReservation works for both volume
and snapshot, the arg parentName make sense only for snapshot cases
renaming that arg to more approprite
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
This commit calls WriteCephConfig() in cephcsi.go to
create ceph.conf and keyring if it is not mounted to
be used by all cli calls and conn cmds.
Before this change, rbd-controller/omap-generator did not create
ceph.conf on startup.
Signed-off-by: Rakshith R <rar@redhat.com>
When we read the csi-kms-connection-details configmap
vaultAuthNamespace might not be set when we do the
conversion the vaultAuthNamespace might be set to empty
key and this commits check for the empty value of
vaultAuthNamespace and set the vaultAuthNamespace
to vaultNamespace.
setting empty value for vaultAuthNamespace happened due
to Marshalling at https://github.com/ceph/ceph-csi/blob/devel/
internal/kms/vault_tokens.go#L136-L139.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
The configurations in cpeh.conf is not picked up by rados connection
automatically, hence we need to call conn.ReadConfigFile before calling
Connect().
Signed-off-by: Rakshith R <rar@redhat.com>
volumeID can be moved to the volumeOptions
as most of the volume related helper functions
are available on the volumeoptions.go
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
Moved execCommandErr to the volumemounter.go
which is the only caller of this function and
moving the execCommandErr helps in reducing the
util file.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
moved the cephfs related validation like
validating the input parameters sent in the
GRPC request to a new file.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
checkStaticVolume() in the reconcilePV function has been unwantedly
introducing variables to confirm the pv spec is static or not. This
patch simplify it and make a smaller footprint of the functions.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
At present there is a 'todo' to check for zero volume size
in the createVolume request which in unwanted, ie the pvc
creation with size 0 fail from the kubernetes api validation itself:
For ex:
```
..spec.resources[storage]: Invalid value: "0": must be greater than zero```
```
so we dont need any extra check in the controller server
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Thanks to the random unmap failure on my local machine:
I0901 17:08:37.841890 2617035 cephcmds.go:55] ID: 11 Req-ID:
0001-0024-fed5480a-f00f-417a-a51d-31d8a8144c03-0000000000000003-024983f3-0b47-11ec-8fcb-e671f0b9f58e
an error (exit status 22) occurred while running rbd args: [unmap
rbd-pool/csi-vol-024983f3-0b47-11ec-8fcb-e671f0b9f58e --device-type nbd
--options try-netlink --options reattach-timeout=300 --options
io-timeout=0]
Noticed the map args are also getting passed to/as unmap args, which is not
correct. We have separate things for mapOptions and unmapOptions. This PR
makes sure that the map args are not passed at the time of unmap.
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
At present the nodeStageVolume() handle many logic of filling rbdvol
struct based on the request received and this method is complex to
follow. with this patch, filling or populating volOptions has been
segregrated and handled hence make the stage functions' job easy.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
MirrorImageState (type C.rbd_mirror_image_state_t) has a string
method which can be used while returning error in the replication
controller. Previously, we were using int return in the error which
is not the proper usage.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
all the error check scenarios of genVolFromVolID() and unreserving
omap entries based on the error made deleteVolume method complex,
this patch create a new function which handle the error check and
unrerving omap entries accordingly and finally return the response
to deletevolume/caller.
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
When NewK8sClient() detects and error, it used to call FatalLogMsg()
which causes a panic. There are additional features that can be used on
Kubernetes clusters, but these are not a requirement for most
functionalities of the driver.
Instead of causing a panic, returning an error should suffice. This
allows using the driver on non-Kubernetes clusters again.
Fixes: #2452
Signed-off-by: Niels de Vos <ndevos@redhat.com>
CephFS csi driver explictly set the size of the cloned volume
to the size of parent volume as cephfs mgr was lacking this
functionality previously. However it has been addressed in cephfs
so we dont need explicit size setting.
Ref#https://tracker.ceph.com/issues/46163
Supported Ceph releases:
Ceph versions equal or above - v16.0.0, v15.2.9, v14.2.12
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
This commit adds fetchMappedClusterIDAndMons() which returns
monitors and clusterID info after checking cluster mapping info.
This is required for regenerating omap entries in mirrored cluster
with different clusterID.
Signed-off-by: Rakshith R <rar@redhat.com>
This commit moves getMappedID() from rbd to util
package since it is not rbd specific and exports
it from there.
Signed-off-by: Rakshith R <rar@redhat.com>
A new "internal/kms" package is introduced, it holds the API that can be
consumed by the RBD components.
The KMS providers are currently in the same package as the API. With
later follow-up changes the providers will be placed in their own
sub-package.
Because of the name of the package "kms", the types, functions and
structs inside the package should not be prefixed with KMS anymore:
internal/kms/kms.go:213:6: type name will be used as kms.KMSInitializerArgs by other packages, and that stutters; consider calling this InitializerArgs (golint)
Updates: #852
Signed-off-by: Niels de Vos <ndevos@redhat.com>
By placing the NewK8sClient() function in its own package, the KMS API
can be split from the "internal/util" package. Some of the KMS providers
use the NewK8sClient() function, and this causes circular dependencies
between "internal/utils" -> "internal/kms" -> "internal/utils", which
are not alowed in Go.
Updates: #852
Signed-off-by: Niels de Vos <ndevos@redhat.com>
if the volumeattachment has been fetched but marked for deletion
the nbd healer dont want to process further on this pv. This patch
adds a check for pv is marked for deletion and if so, make the
healer skip processing the same
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Moving the log functions into its own internal/util/log package makes it
possible to split out the humongous internal/util packages in further
smaller pieces. This reduces the inter-dependencies between utility
functions and components, preventing circular dependencies which are not
allowed in Go.
Updates: #852
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Unit-testing often fails due to a race condition while writing the
clusterMappingConfigFile from multiple go-routines at the same time.
Failures from `make containerized-test` look like this:
=== CONT TestGetClusterMappingInfo/site2-storage_cluster-id_mapping
cluster_mapping_test.go:153: GetClusterMappingInfo() = <nil>, expected data &[{map[site1-storage:site2-storage] [map[1:3]] [map[11:5]]} {map[site3-storage:site2-storage] [map[8:3]] [map[10:5]]}]
=== CONT TestGetClusterMappingInfo/site3-storage_cluster-id_mapping
cluster_mapping_test.go:153: GetClusterMappingInfo() = <nil>, expected data &[{map[site3-storage:site2-storage] [map[8:3]] [map[10:5]]}]
--- FAIL: TestGetClusterMappingInfo (0.01s)
--- PASS: TestGetClusterMappingInfo/mapping_file_not_found (0.00s)
--- PASS: TestGetClusterMappingInfo/mapping_file_found_with_empty_data (0.00s)
--- PASS: TestGetClusterMappingInfo/cluster-id_mapping_not_found (0.00s)
--- FAIL: TestGetClusterMappingInfo/site2-storage_cluster-id_mapping (0.00s)
--- FAIL: TestGetClusterMappingInfo/site3-storage_cluster-id_mapping (0.00s)
--- PASS: TestGetClusterMappingInfo/site1-storage_cluster-id_mapping (0.00s)
By splitting the public GetClusterMappingInfo() function into an
internal getClusterMappingInfo() that takes a filename, unit-testing can
use different files for each go-routine, and testing becomes more
predictable.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
With the tests at CI, it kind of looks like that the IO is timing out after
30 seconds (default with rbd-nbd). Since we have tweaked reattach-timeout
to 300 seconds at ceph-csi, we need to explicitly set io-timeout on the
device too, as it doesn't make any sense to keep
io-timeout < reattach-timeout
Hence we set io-timeout for rbd nbd to 0. Specifying io-timeout 0 tells
the nbd driver to not abort the request and instead see if it can be
restarted on another socket.
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
Suggested-by: Ilya Dryomov <idryomov@redhat.com>
- Update the meta stash with logDir details
- Use the same to remove logfile on unstage/unmap to be space efficient
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
