Commit Graph

73 Commits

Author SHA1 Message Date
Niels de Vos
6d00b39886 cleanup: move log functions to new internal/util/log package
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>
2021-08-26 09:34:05 +00:00
Prasanna Kumar Kalever
b6a88dd728 rbd: add volume healer
Problem:
-------
For rbd nbd userspace mounter backends, after a restart of the nodeplugin
all the mounts will start seeing IO errors. This is because, for rbd-nbd
backends there will be a userspace mount daemon running per volume, post
restart of the nodeplugin pod, there is no way to restore the daemons
back to life.

Solution:
--------
The volume healer is a one-time activity that is triggered at the startup
time of the rbd nodeplugin. It navigates through the list of volume
attachments on the node and acts accordingly.

For now, it is limited to nbd type storage only, but it is flexible and
can be extended in the future for other backend types as needed.

From a few feets above:
This solves a severe problem for nbd backed csi volumes. The healer while
going through the list of volume attachments on the node, if finds the
volume is in attached state and is of type nbd, then it will attempt to
fix the rbd-nbd volumes by sending a NodeStageVolume request with the
required volume attributes like secrets, device name, image attributes,
and etc.. which will finally help start the required rbd-nbd daemons in
the nodeplugin csi-rbdplugin container. This will allow reattaching the
backend images with the right nbd device, thus allowing the applications
to perform IO without any interruptions even after a nodeplugin restart.

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
2021-07-16 16:30:58 +00:00
Prasanna Kumar Kalever
874f6629fb rbd: get default plugin path
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
2021-07-16 16:30:58 +00:00
Yati Padia
696ee496fc cleanup: resolves gofumpt for cmd
This commit resolves gofumpt linter for
cmd folder

Updates: 1586

Signed-off-by: Yati Padia <ypadia@redhat.com>
2021-07-14 17:19:00 +00:00
Yati Padia
4a649fe17f cleanup: resolve godot linter
This commit resolves godot linter issue
which says "Comment should end in a period (godot)".

Updates: #1586

Signed-off-by: Yati Padia <ypadia@redhat.com>
2021-07-13 06:50:03 +00:00
Humble Chirammal
7409714103 cephfs: reformat long lines in 'cmd' package to 120 chars
We have many declarations and invocations..etc
with long lines which are very difficult to follow while doing
code reading. This address the issues in 'cmd' package to restrict
the line length to 120 chars.

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
2021-06-28 14:43:49 +00:00
Yati Padia
774e8e4042 util: enable golang profiling
Add support for golang profiling.
Standard tools like go tool pprof and curl
work. example:
$ go tool pprof http://localhost:8080/debug/pprof/profile
$ go tool pprof http://localhost:8080/debug/pprof/heap
$ curl http://localhost:8080/debug/pprof/heap?debug=1

https://golang.org/pkg/net/http/pprof/ contains
more details about the pprof interface.

Fixes: #1699

Signed-off-by: Yati Padia <ypadia@redhat.com>
2021-05-25 10:41:22 +00:00
Rakshith R
7d105143fc cleanup: refactor deeply nested if statement in cephcsi.go
Refactored deeply nested if statement in cephcsi.go to
reduce cognitive complexity.

Signed-off-by: Rakshith R <rar@redhat.com>
2021-04-07 02:31:41 +00:00
Humble Chirammal
82bc993b32 util: remove unwanted import string from module dependencies
There is no need for an extra import string when the go mod package
itself declared in the same.

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
2021-03-24 15:12:13 +00:00
Madhu Rajanna
30af703a2f rbd: add controller to main
initialize and start the rbd controller when
we the driver type is controller.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-11-28 18:50:00 +00:00
Madhu Rajanna
8d3a44d0c4 rbd: add minsnapshotsonimage flag
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>
2020-11-18 05:59:20 +00:00
Niels de Vos
ecc33a9f86 cleanup: no need to validate conf.Vtype twice
conf.Vtype was verified already, no need to do it a 2nd time.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-10-28 09:37:36 +00:00
Niels de Vos
4c91f07c78 cleanup: do not panic when validateMaxSnaphostFlag() detects an error
When the cephcsi executable detects an error when calling
validateMaxSnaphostFlag(), it panics due to klog.Fatalln(). The error
that validateMaxSnaphostFlag() logs should be understandable enough, so
that users know what to investigate. A Go panic on a user error is not
very userfriendly, and does not provide any additional usefil
information.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-10-28 09:37:36 +00:00
Niels de Vos
3e305970df cleanup: do not panic when validateCloneDepthFlag() detects an error
When the cephcsi executable receives an error when calling
validateCloneDepthFlag(), it panics due to klog.Fatalln(). The errors
that validateCloneDepthFlag() logs should be understandable enough, so
that users know what to investigate. A Go panic on a user error is not
very userfriendly, and does not provide any additional usefil
information.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-10-28 09:37:36 +00:00
Niels de Vos
86a8d29bd1 cleanup: do not panic when the metricspath is not a valid URL
When the cephcsi executable receives an error when calling
util.ValidateURL() on the optional "metricspath". The error that
util.ValidateURL() returns should be understandable enough, so that
users know what to investigate. A Go panic on a user error is not very
userfriendly, and does not provide any additional usefil information.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-10-28 09:37:36 +00:00
Niels de Vos
23817c1a83 cleanup: do not panic on invalid drivername
When the cephcsi executable receives an error when calling
util.ValidateDriverName(), it panics due to klog.Fatalln(). The error
that util.ValidateDriverName() returns should be understandable enough,
so that users know what to investigate. A Go panic on a user error is
not very userfriendly, and does not provide any additional usefil
information.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-10-28 09:37:36 +00:00
Niels de Vos
79e91fa894 cleanup: prevent Go panic on missing driver type
When running the 'cephcsi' executable without arguments, a Go panic is
reported:

    $ ./_output/cephcsi
    F1026 13:59:04.302740 3409054 cephcsi.go:126] driver type not specified
    goroutine 1 [running]:
    k8s.io/klog/v2.stacks(0xc000010001, 0xc0000520a0, 0x48, 0x9a)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:996 +0xb9
    k8s.io/klog/v2.(*loggingT).output(0x2370360, 0xc000000003, 0x0, 0x0, 0xc000194770, 0x20cb265, 0xa, 0x7e, 0x413500)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:945 +0x191
    k8s.io/klog/v2.(*loggingT).println(0x2370360, 0x3, 0x0, 0x0, 0xc000163e08, 0x1, 0x1)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:699 +0x11a
    k8s.io/klog/v2.Fatalln(...)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:1456
    main.main()
    	/go/src/github.com/ceph/ceph-csi/cmd/cephcsi.go:126 +0xafa

Just logging the error and exiting should be sufficient. This stack-trace
from the Go panic does not add any useful information.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-10-28 09:37:36 +00:00
Niels de Vos
7101a6dc8e cleanup: add logAndExit() for cephcsi:main() to call instead of panic
The main() function of the cephcsi executable calls klog.Fatalln() to
report certain errors. This causes the executable to panic which is not
helpful to users that only need the error message.

By introducing logAndExit(), there is no need to call klog.Fatalln()
anymore.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-10-28 09:37:36 +00:00
Yug
71ddf51544 cleanup: address gomnd warnings
Direct usage of numbers should be avoided.

Issue reported:
mnd: Magic number: X, in <argument> detected (gomnd)

Signed-off-by: Yug <yuggupta27@gmail.com>
2020-07-21 08:36:24 +00:00
Madhu Rajanna
d15ded88f5 cleanup: Remove support for Delete and Unmounting v1.1.0 PVC
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>
2020-07-10 16:07:13 +00:00
Yug
1490daed7e cleanup: Avoid usage of numbers
Add seperate functions to handle all
levels and types of logging.

Signed-off-by: Yug <yuggupta27@gmail.com>
2020-07-10 07:41:23 +00:00
Yug
8dc4ab6b1b rebase: update k8s.io/klog to v2.3.0
Update klog version to v2.3.0

Signed-off-by: Yug <yuggupta27@gmail.com>
2020-07-10 07:41:23 +00:00
Madhu Rajanna
8ef7143e6c rbd: add maxsnapshotsonimage flag
Added maxsnapshotsonimage flag to flatten
the older rbd images on the chain to avoid
issue in krbd.The limit is in krbd since it
only allocate 1 4KiB page to handle all the
snapshot ids for an image.

The max limit is 510 as per
https://github.com/torvalds/linux/blob/
aaa2faab4ed8e5fe0111e04d6e168c028fe2987f/drivers/block/rbd.c#L98
in cephcsi we arekeeping the default to 450 to reserve 10%
to avoid issues.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-07-06 10:08:31 +00:00
Madhu Rajanna
b085577a4f rbd: add skipForceFlatten flag
added skipForceFlatten flag to skip
the image deptha and skip image flattening.
This will be very useful if the kernel is
not listed in cephcsi which supports deep
flatten fauture.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-07-01 08:21:47 +00:00
Madhu Rajanna
9b518726ab rbd: add hardlimt and softlimit flag
added Hardlimit and Softlimit flags for cephcsi
arguments. When the Softlimit is reached cephcsi
will start a background task to flatten the rbd
image and return success and if the hardlimit
is reached it will start a background task
to flatten the rbd image and return ready
to use as false to make sure that the image
will not be used until it is flatten.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-07-01 08:21:47 +00:00
Madhu Rajanna
567b2ab280 util: Rename KernelVersion to GetKernelVersion
Renames KernelVersion to GetKernelVersion for
more readibility.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-07-01 08:21:47 +00:00
Niels de Vos
1b0b26a7a6 util: log kernel version on start
It is useful to have the kernel version logged while starting binaries.
Some functionality depends on the version of the kernel, debugging
issues related to this will be easier.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-06-18 11:42:47 +00:00
Niels de Vos
32839948ef cleanup: move pkg/ to internal/
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>
2020-04-23 11:00:59 +00:00
Madhu Rajanna
5b14cc9272 Fix goimports issue in CI
Fix below error in current codebase
File is not `goimports`-ed with -local
github.com/ceph/ceph-csi

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-04-15 09:18:47 +00:00
ShyamsundarR
5c4abf8347 Add topology support to ceph-csi
Signed-off-by: ShyamsundarR <srangana@redhat.com>
2020-04-14 14:14:29 +00:00
Madhu Rajanna
bcd646ee55 Deprecate grpc metrics in ceph-csi
As kubernetes CSI sidecar is exposing the
GRPC mertics we can make use of the same in
ceph-csi we dont need to expose our own.

update: #881

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-04-01 11:59:37 +00:00
xu.chen
399f0b0d89 Audit log and follow klog standard 2020-03-27 09:24:52 +00:00
Madhu Rajanna
034b123478 Remove mount cache for cephfs
PR #282 introduces the mount cache to
solve cephfs fuse mount issue when cephfs plugin pod
restarts .This is not working as intended. This PR removes
the code for maintainability.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2020-02-11 15:11:21 +00:00
Woohyung Han
8a16f740d6 Update golangci-lint version to v1.21.0
Signed-off-by: Woohyung Han <techhanx@gmail.com>
2019-12-12 04:57:14 +00:00
Madhu Rajanna
118f34525e Remove deprecated containerized
As we are moving towards v2.0.0 I think
it's a good time to remove the deprecated flag.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-12-11 14:44:35 +00:00
Madhu Rajanna
dfc3562e29 Add Version flag to cephcsi
This will be helpful if someone wants
to check the cephcsi version

output
```
docker run quay.io/cephcsi/cephcsi:v1.2.1 --version
Cephcsi Version: v1.2.1
Git Commit: 4b871366327d63e27fc1abfb699f0faaf0fc16b9
GoVersion: go1.12.5
Compiler: gc
Platform: linux/amd64
```

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-11-06 12:35:28 +00:00
Stefan Haas
6a2717ce20 Added forcecephkernelclient as startup parameter to force enabling ceph
Signed-off-by: Stefan Haas <shaas@suse.com>
2019-10-16 06:47:10 +00:00
Madhu Rajanna
7002da1a6a deprecate containerized flag and remove nsenter
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-09-23 13:22:29 +00:00
Madhu Rajanna
f4b38228ae Remove volumemounter flag from cephfs
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-09-05 07:20:50 +00:00
Madhu Rajanna
a81a3bf96b implement grpc metrics for ceph-csi
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-08-30 06:50:32 +00:00
Madhu Rajanna
0da4bd5151 start controller or node server based on config
if both controller and nodeserver flags are set/unset
cephcsi will start both server,

if only one flag is set, it will start relavent
service.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-08-19 06:11:43 +00:00
Madhu Rajanna
89732d923f move flag configuration variable to util
remove unwanted checks
remove getting drivertype from binary name

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-08-19 06:11:43 +00:00
Daniel-Pivonka
d621a58207 prometheus liveness probe sidecar
Signed-off-by: Daniel-Pivonka dpivonka@redhat.com
2019-08-13 17:51:41 +00:00
Niels de Vos
31648c8feb provisioners: add reconfiguring of PID limit
The container runtime CRI-O limits the number of PIDs to 1024 by
default. When many PVCs are requested at the same time, it is possible
for the provisioner to start too many threads (or go routines) and
executing 'rbd' commands can start to fail. In case a go routine can not
get started, the process panics.

The PID limit can be changed by passing an argument to kubelet, but this
will affect all pids running on a host. Changing the parameters to
kubelet is also not a very elegant solution.

Instead, the provisioner pod can change the configuration itself. The
pod is running in privileged mode and can write to /sys/fs/cgroup where
the limit is configured.

With this change, the limit is configured to 'max', just as if there is
no limit at all. The logs of the csi-rbdplugin in the provisioner pod
will reflect the change it makes when starting the service:

    $ oc -n rook-ceph logs -c csi-rbdplugin csi-rbdplugin-provisioner-0
    ..
    I0726 13:59:19.737678       1 cephcsi.go:127] Initial PID limit is set to 1024
    I0726 13:59:19.737746       1 cephcsi.go:136] Reconfigured PID limit to -1 (max)
    ..

It is possible to pass a different limit on the commandline of the
cephcsi executable. The following flag has been added:

    --pidlimit=<int>       the PID limit to configure through cgroups

This accepts special values -1 (max) and 0 (default, do not
reconfigure). Other integers will be the limit that gets configured in
cgroups.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2019-08-13 14:43:29 +00:00
Humble Chirammal
0786225937 Implement metrics for RBD plugin
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
2019-08-01 11:58:54 +00:00
Madhu Rajanna
778cfb3090 provide option to set pluginpath for cephfs
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-07-25 14:47:42 +05:30
Madhu Rajanna
3f8bd3b2a6 Update driver version during build time
update driver version and add git commit
to the image. This will help us to identify
what latest git commit image contains.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-07-12 15:54:52 +05:30
ShyamsundarR
fa68c35f3b Support mounting and deleting version 1.0.0 RBD volumes
This commit adds support to mount and delete volumes provisioned by older
plugin versions (1.0.0) in order to support backward compatibility to 1.0.0
created volumes.

It adds back the ability to specify where older meta data was specified, using
the metadatastorage option to the plugin. Further, using the provided meta data
to mount and delete the older volumes.

It also supports a variety of ways in which monitor information may have been
specified (in the storage class, or in the secret), to keep the monitor
information current.

Testing done:
- Mount/Delete 1.0.0 plugin created volume with monitors in the StorageClass
- Mount/Delete 1.0.0 plugin created volume with monitors in the secret with
  a key "monitors"
- Mount/Delete 1.0.0 plugin created volume with monitors in the secret with
  a user specified key
- PVC creation and deletion with the current version (to ensure at the minimum
  no broken functionality)
- Tested some negative cases, where monitor information is missing in secrets
  or present with a different key name, to understand if failure scenarios work
  as expected

Updates #378

Follow-up work:
- Documentation on how to upgrade to 1.1 plugin and retain above functionality
  for older volumes

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-07-08 15:40:17 +00:00
Madhu Rajanna
a38986fce0 Enable all static-checks in golangci-lint
* Enable all static-checks in golangci-lint
* Update golangci-lint version
* Fix issue found in golangci-lint

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-06-10 15:56:17 +05:30
ShyamsundarR
b9cd0e18ad Make CephFS plugin stateless reusing RADOS based journal scheme
This is a part of the stateless set of commits for CephCSI.

This commit removes the dependency on config maps to store cephFS provisioned
volumes, and instead relies on RADOS based objects and keys, and required
CSI VolumeID encoding to detect the provisioned volumes.

Changes:
- Provide backward compatibility to provisioned volumes by older plugin versions (1.0.0 or older)
- Remove Create/Delete support for statically provisioned volumes (fixes #382)
- Added namespace support to RADOS OMaps and used the same to store RADOS CSI objects and keys in the CephFS metadata pool
- Added support to mention fsname for CephFS provisioning (fixes #359)
- Changed field name in CSI Identifier to 'location', to denote a pool or fscid
- Updated mounter cache to use new scheme
- Required Helm manifests are updated
- Required documentation and other manifests are updated
- Made driver option 'metadatastorage' as optional, as fresh installs do not need to specify the same

Testing done:
- Create/Mount/Delete PVC
- Create/Delete 5 PVCs
- Mount version 1.0.0 PVC
- Delete version 1.0.0 PV
- Mount Statically defined PV/PVC/Pod
- Mount Statically defined version 1.0.0 PV/PVC/Pod
- Delete Statically defined version 1.0.0 PV/PVC/Pod
- Node restart when mounted to test mountcache
- Use InstanceID other than 'default'
- RBD basic round of tests, as namespace is added to OMaps
- csitest against ceph-fs plugin
  - NOTE: CephFS plugin still does not detect and address already created
  volumes but of a different size
- Test not providing any value to the metadata storage parameter

Signed-off-by: ShyamsundarR <srangana@redhat.com>
2019-05-30 06:20:35 -04:00