adjust createBackingVolume() to create a subvolume from snapshot
or existing subvolume by taking restore or clone operation locks
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Most consumers of util.ExecCommand() need to convert the returned []byte
format of stdout and/or stderr to string. By having util.ExecCommand()
return strings instead, the code gets a little simpler.
A few commands return JSON that needs to be parsed. These commands will
be replaced by go-ceph implementations later on. For now, convert the
strings back to []byte when needed.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
All calls to util.ExecCommand() now pass the context.Context. In some
cases this is not possible or needed, and util.ExecCommand() will not
log the command.
This should make debugging easier when command executions fail.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This change replaces the sentinel errors in cephfs module with
standard errors created with errors.New().
Related: #1203
Signed-off-by: Sven Anderson <sven@redhat.com>
The sentinel error code had additional fields in the errors, that are
used nowhere. This leads to unneccesarily complicated code. This
change replaces the sentinel errors in utils with standard errors
created with errors.New() and adds a simple JoinErrors() function to
be able to combine sentinel errors from different code tiers.
Related: #1203
Signed-off-by: Sven Anderson <sven@redhat.com>
Direct usage of numbers should be avoided.
Issue reported:
mnd: Magic number: X, in <argument> detected (gomnd)
Signed-off-by: Yug <yuggupta27@gmail.com>
Add explanation to nolint directives.
Issue reported:
whyNoLint: include an explanation for nolint directive (gocritic)
Signed-off-by: Yug <yuggupta27@gmail.com>
In Go 1.13, the fmt.Errorf function supports a new %w verb.
When this verb is present, the error returned by fmt.Errorf
will have an Unwrap method returning the argument of %w,
which must be an error. In all other ways, %w is identical to %v.
Updates: #1227
Signed-off-by: Yug <yuggupta27@gmail.com>
In some ceph version if the subvolume is not present, the
ceph returns doesnot exists and in some version not found
error message. This commit fixes issue for both error
checks.
By only checking Error ENOENT: for doesnot exist seems good.
even if some error message changes in ceph ceph-csi wont get
any issue.
```bash
sh-4.2# ceph version
ceph version 14.2.10 (b340acf629a010a74d90da5782a2c5fe0b54ac20) nautilus (stable)
sh-4.2# ceph fs subvolume getpath myfs csi-vol-a24a3d97-c7f4-11ea-8cfc-0242ac110012 --group_name csi
Error ENOENT: subvolume 'csi-vol-a24a3d97-c7f4-11ea-8cfc-0242ac110012' does not exist
```
```bash
sh-4.2# ceph version
ceph version 14.2.4 (75f4de193b3ea58512f204623e6c5a16e6c1e1ba) nautilus (stable)
sh-4.2# ceph fs subvolume getpath myfs testing --group_name=csi
Error ENOENT: Subvolume 'testing' not found
```
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
rename newVolumeOptionsFromVersion1Context to newVolumeOptionsFromMonitorList
to provide more clarity to the function readers and also fixed comments.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
as v1.0.0 is deprecated we need to remove the support
for it in the Next coming (v3.0.0) release. This PR
removes the support for the same.
closes#882
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
"github.com/pkg/errors" does not offer more functionlity than that we
need from the standard "errors" package. With Golang v1.13 errors can be
wrapped with `fmt.Errorf("... %w", err)`. `errors.Is()` and
`errors.As()` are available as well.
See-also: https://tip.golang.org/doc/go1.13#error_wrapping
Signed-off-by: Niels de Vos <ndevos@redhat.com>
as we need to reuse the same code for both cephfs
and rbd moving the supported version check function
to util package, for better readability renamed
the function.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
cephcsi need to add mount the cephfs subvolume
as the readonly when the PVC type is ROX to
provide only readonly access to the users
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
With the current code base, the subvolumegroup will
be created once, and even for a different cluster,
subvolumegroup creation is not allowed again.
Added support multiple subvolumegroups creation by
validating one subvolumegroup creation per cluster.
Fixes: #1123
Signed-off-by: Yug Gupta <ygupta@redhat.com>
IneffAssign warns about the two following statements:
Line 147: warning: ineffectual assignment to supported (ineffassign)
Line 148: warning: ineffectual assignment to ok (ineffassign)
Reported-by: https://goreportcard.com/report/github.com/ceph/ceph-csi
Updates: #975
Signed-off-by: Yug Gupta <ygupta@redhat.com>
When mounting fails, the node-plugin should give a suggestion to check the
kernel logs so that users can report problems better.
Edited the existing log to include the message in both rbd and cephfs.
Fixes: https://github.com/ceph/ceph-csi/issues/1006
Signed-off-by: Mudit Agarwal <muagarwa@redhat.com>
Before, the one CSIJournal type was handling both configuration and
providing methods to make changes to the journal. This created the
temptation to modify the state of the global configuration object to
enact changes through the method calls.
This change creates a new type `journal.Connection` that takes the
monitors and credentials to create a short(er)-lived object to actually
read and make changes on the journal. This also avoid mixing the
arguments needed to connect to the cluster with the arguments needed
for the various journal read & update calls.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
The SetNamespace setter function was called only once, immediately after
the creation of a volume journal object in cephfs only.
Remove this function so that it is no longer implied that this field can
be mutated after the journal is created. In it's place, use an extended
"constructor" NewCSIVolumeJournalWithNamespace that takes a namespace
value at create-time only.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
The function SetCSIDirectorySuffix was used only one per (long-lived,
gloabl) journal object. It is simpler to construct the journal objects
with this needed parameter:
1. As it is required to function and non-optional AFAICT
2. Removes the temptation to mutate global object
3. Reduces LOC with exact same functionality
4. SetCSIDirectorySuffix would not behave correctly if called a 2nd time
anyway.
Point 4. means that if you called the function twice to change the
suffix when you previously had "csi.volumes.alice", you'd get
"csi.volumes.alice.bob" instead of "csi.volumes.bob" what one would
expect.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
The name of the CephFS SubvolumeGroup for the CSI volumes was hardcoded to "csi". To make permission management in multi tenancy environments easier, this commit makes it possible to configure the CSI SubvolumeGroup.
related to #798 and #931
This new journal package isolates journal logic from the rest of util
and helps draw bright lines between what is a generic utility function
and what is csi journal logic.
Done partly as preparation for making use of go-ceph in journal.
No functional changes are made except to update references to allow the
code to compile.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
The internal/ directory in Go has a special meaning, and indicates that
those packages are not meant for external consumption. Ceph-CSI does
provide public APIs for other projects to consume. There is no plan to
keep the API of the internally used packages stable.
Closes: #903
Signed-off-by: Niels de Vos <ndevos@redhat.com>
