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CSI driver for Ceph
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Madhu Rajanna 517ad8c644 rbd: use dummy image to workaround rbd scheduling bug 
currently we have a bug in rbd mirror scheduling module.
After doing failover and failback the scheduling is not
getting updated and the mirroring snapshots are not
getting created periodically as per the scheduling
interval. This PR workarounds this one by doing below
operations

* Create a dummy (unique) image per cluster and this image
should be easily identified.

* During Promote operation on any image enable the
mirroring on the dummy image. when we enable the mirroring
on the dummy image the pool will get updated and the
scheduling will be reconfigured.

* During Demote operation on any image disable the mirroring
on the dummy image. the disable need to be done to enable
the mirroring again when we get the promote request to make
the image as primary

* When the DR is no more needed, this image need to be
manually cleanup as for now as we dont want to add a check
in the existing DeleteVolume code path for delete dummy image
as it impact the performance of the DeleteVolume workflow.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2021-11-19 09:38:59 +05:30
.github ci: add actions/retest to dependabot checks 2021-11-18 07:52:29 +00:00
actions/retest build: use golang:1.16 as runtime container for retest action 2021-11-17 14:36:13 +00:00
api deploy: move rbd/ceph-csi-config ConfigMap to API 2021-10-15 16:08:59 +00:00
assets feat: Adds Ceph logo as icon for Helm charts 2019-08-20 05:34:28 +00:00
charts rbd: provide a way to disable the auto fallback to nbd mounter 2021-11-01 08:17:36 +00:00
cmd cleanup: rework on naming conventions 2021-09-24 06:17:17 +00:00
deploy build: remove unneeded empty YAML document from deployment artifacts 2021-10-15 16:08:59 +00:00
docs doc: add documentation for retest job 2021-11-16 12:03:36 +00:00
e2e e2e: remove 1.15 based test enablement in cephfs 2021-11-18 05:04:44 +00:00
examples rbd: provide a way to disable the auto fallback to nbd mounter 2021-11-01 08:17:36 +00:00
internal rbd: use dummy image to workaround rbd scheduling bug 2021-11-19 09:38:59 +05:30
scripts ci: skip shell check in vendor directory 2021-11-16 12:03:36 +00:00
tools build: remove unneeded empty YAML document from deployment artifacts 2021-10-15 16:08:59 +00:00
troubleshooting/tools cleanup: address pylint "consider-using-with" in tracevol.py 2021-08-19 09:06:17 +00:00
vendor rebase: bump k8s.io/kubernetes from 1.22.2 to 1.22.3 2021-11-18 13:01:32 +00:00
.commitlintrc.yml ci: trailer-exists to verify sign-off 2021-08-05 14:50:12 +05:30
.gitignore build: add .test-container-id to .gitignore 2020-08-18 14:34:08 +00:00
.mergify.yml ci: remove gh action gosec linter,since it is already part of golangci 2021-11-16 12:29:56 +01:00
.pre-commit-config.yaml ci: Add pre-commit hook to catch issues locally 2020-08-19 16:01:16 +00:00
build.env ci: remove gh action gosec linter,since it is already part of golangci 2021-11-16 12:29:56 +01:00
deploy.sh build: git config before commit 2021-06-10 16:03:40 +02:00
go.mod rebase: bump k8s.io/kubernetes from 1.22.2 to 1.22.3 2021-11-18 13:01:32 +00:00
go.sum rebase: bump k8s.io/kubernetes from 1.22.2 to 1.22.3 2021-11-18 13:01:32 +00:00
LICENSE Removing appendix from license. 2019-08-09 15:16:46 +00:00
Makefile ci: remove gh action gosec linter,since it is already part of golangci 2021-11-16 12:29:56 +01:00
README.md doc: update dev standup meeting link 2021-09-30 13:27:11 +00:00

README.md

Ceph CSI

GitHub release Go Report Card TODOs

This repo contains Ceph Container Storage Interface (CSI) driver for RBD, CephFS and kubernetes sidecar deployment yamls of provisioner, attacher, resizer, driver-registrar and snapshotter for supporting CSI functionalities.

Overview

Ceph CSI plugins implement an interface between CSI enabled Container Orchestrator (CO) and Ceph cluster. It allows dynamically provisioning Ceph volumes and attaching them to workloads.

Independent CSI plugins are provided to support RBD and CephFS backed volumes,

  • For details about configuration and deployment of RBD plugin, please refer rbd doc and for CephFS plugin configuration and deployment please refer cephFS doc.
  • For example usage of RBD and CephFS CSI plugins, see examples in examples/.
  • Stale resource cleanup, please refer cleanup doc.

NOTE:

  • Ceph CSI Arm64 support is experimental.

Project status

Status: GA

Known to work CO platforms

Ceph CSI drivers are currently developed and tested exclusively on Kubernetes environments.

Ceph CSI Version Container Orchestrator Name Version Tested
v3.4.0 Kubernetes v1.20, v1.21, v1.22
v3.3.0 Kubernetes v1.20, v1.21, v1.22

There is work in progress to make this CO independent and thus support other orchestration environments (Nomad, Mesos..etc) in the future.

NOTE:

The supported window of Ceph CSI versions is known as "N.(x-1)": (N (Latest major release) . (x (Latest minor release) - 1)).

For example, if Ceph CSI latest major version is 3.4.0 today, support is provided for the versions above 3.3.0. If users are running an unsupported Ceph CSI version, they will be asked to upgrade when requesting support for the cluster.

Support Matrix

Ceph-CSI features and available versions

Please refer rbd nbd mounter for its support details.

Plugin Features Feature Status CSI Driver Version CSI Spec Version Ceph Cluster Version Kubernetes Version
RBD Dynamically provision, de-provision Block mode RWO volume GA >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.14.0
Dynamically provision, de-provision Block mode RWX volume GA >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.14.0
Dynamically provision, de-provision File mode RWO volume GA >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.14.0
Provision File Mode ROX volume from snapshot Alpha >= v3.0.0 >= v1.0.0 Nautilus (>=v14.2.2) >= v1.17.0
Provision File Mode ROX volume from another volume Alpha >= v3.0.0 >= v1.0.0 Nautilus (>=v14.2.2) >= v1.16.0
Provision Block Mode ROX volume from snapshot Alpha >= v3.0.0 >= v1.0.0 Nautilus (>=v14.2.2) >= v1.17.0
Provision Block Mode ROX volume from another volume Alpha >= v3.0.0 >= v1.0.0 Nautilus (>=v14.2.2) >= v1.16.0
Creating and deleting snapshot Beta >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.17.0
Provision volume from snapshot Beta >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.17.0
Provision volume from another volume Beta >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.16.0
Expand volume Beta >= v2.0.0 >= v1.1.0 Nautilus (>=14.0.0) >= v1.15.0
Volume/PV Metrics of File Mode Volume Beta >= v1.2.0 >= v1.1.0 Nautilus (>=14.0.0) >= v1.15.0
Volume/PV Metrics of Block Mode Volume Beta >= v1.2.0 >= v1.1.0 Nautilus (>=14.0.0) >= v1.21.0
Topology Aware Provisioning Support Alpha >= v2.1.0 >= v1.1.0 Nautilus (>=14.0.0) >= v1.14.0
CephFS Dynamically provision, de-provision File mode RWO volume Beta >= v1.1.0 >= v1.0.0 Nautilus (>=14.2.2) >= v1.14.0
Dynamically provision, de-provision File mode RWX volume Beta >= v1.1.0 >= v1.0.0 Nautilus (>=v14.2.2) >= v1.14.0
Dynamically provision, de-provision File mode ROX volume Alpha >= v3.0.0 >= v1.0.0 Nautilus (>=v14.2.2) >= v1.14.0
Creating and deleting snapshot Beta >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.3) >= v1.17.0
Provision volume from snapshot Beta >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.3) >= v1.17.0
Provision volume from another volume Beta >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.3) >= v1.16.0
Expand volume Beta >= v2.0.0 >= v1.1.0 Nautilus (>=v14.2.2) >= v1.15.0
Volume/PV Metrics of File Mode Volume Beta >= v1.2.0 >= v1.1.0 Nautilus (>=v14.2.2) >= v1.15.0

NOTE: The Alpha status reflects possible non-backward compatible changes in the future, and is thus not recommended for production use.

CSI spec and Kubernetes version compatibility

Please refer to the matrix in the Kubernetes documentation.

Ceph CSI Container images and release compatibility

Ceph CSI Release/Branch Container image name Image Tag
devel (Branch) quay.io/cephcsi/cephcsi canary
v3.4.0 (Release) quay.io/cephcsi/cephcsi v3.4.0
v3.3.1 (Release) quay.io/cephcsi/cephcsi v3.3.1
v3.3.0 (Release) quay.io/cephcsi/cephcsi v3.3.0
Deprecated Ceph CSI Release/Branch Container image name Image Tag
v3.2.2 (Release) quay.io/cephcsi/cephcsi v3.2.2
v3.2.1 (Release) quay.io/cephcsi/cephcsi v3.2.1
v3.2.0 (Release) quay.io/cephcsi/cephcsi v3.2.0
v3.1.2 (Release) quay.io/cephcsi/cephcsi v3.1.2
v3.1.1 (Release) quay.io/cephcsi/cephcsi v3.1.1
v3.1.0 (Release) quay.io/cephcsi/cephcsi v3.1.0
v3.0.0 (Release) quay.io/cephcsi/cephcsi v3.0.0
v2.1.2 (Release) quay.io/cephcsi/cephcsi v2.1.2
v2.1.1 (Release) quay.io/cephcsi/cephcsi v2.1.1
v2.1.0 (Release) quay.io/cephcsi/cephcsi v2.1.0
v2.0.1 (Release) quay.io/cephcsi/cephcsi v2.0.1
v2.0.0 (Release) quay.io/cephcsi/cephcsi v2.0.0
v1.2.2 (Release) quay.io/cephcsi/cephcsi v1.2.2
v1.2.1 (Release) quay.io/cephcsi/cephcsi v1.2.1
v1.2.0 (Release) quay.io/cephcsi/cephcsi v1.2.0
v1.1.0 (Release) quay.io/cephcsi/cephcsi v1.1.0
v1.0.0 (Branch) quay.io/cephcsi/cephfsplugin v1.0.0
v1.0.0 (Branch) quay.io/cephcsi/rbdplugin v1.0.0

Contributing to this repo

Please follow development-guide and coding style guidelines if you are interested to contribute to this repo.

Troubleshooting

Please submit an issue at: Issues

Weekly Bug Triage call

We conduct weekly bug triage calls at our slack channel on Tuesdays. More details are available here

Dev standup

A regular dev standup takes place every Monday,Tuesday and Thursday at 12:00 PM UTC. Convert to your local timezone by executing command date -d "12:00 UTC" on terminal

Any changes to the meeting schedule will be added to the agenda doc.

Anyone who wants to discuss the direction of the project, design and implementation reviews, or general questions with the broader community is welcome and encouraged to join.

Contact

Please use the following to reach members of the community: