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CSI driver for Ceph
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Madhu Rajanna 52290333e6 rbd: modified logic to check image watchers 
Before RBD map operation, we do check the
watchers on the RBD image. In the case of
RWO volume. cephcsi makes sure only one
client is using the RBD image. If the rbd
image is mirrored, by default mirroring
daemon will add a watcher on the image
and as we are using go-ceph a watcher will
be added as we have opened the image So
we will have two watchers on an image if
mirroring is enabled. This holds when the
rbd mirror daemon is running, In case if
the mirror daemon is not running there will
be only one watcher on the rbd image
(which is placed by go-ceph image open)
we should not block the map operation if
the mirroring daemon is not running as
its Async mirroring. This commit adds a
check to make sure no more than 2 watchers
if the image is mirrored or no more than 1
watcher if it is not mirrored image.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2021-04-19 16:30:55 +00:00
.github doc: rename "master" branch to "devel" 2021-03-01 10:51:30 +05:30
assets feat: Adds Ceph logo as icon for Helm charts 2019-08-20 05:34:28 +00:00
charts deploy: add csidriver object for cephfs and rbd 2021-03-31 13:41:35 +00:00
cmd cleanup: refactor deeply nested if statement in cephcsi.go 2021-04-07 02:31:41 +00:00
deploy deploy: use serviceAccountName instead of serviceAccount in yamls 2021-04-06 09:00:35 +00:00
docs cleanup: various source code comment corrections 2021-04-16 10:22:35 +00:00
e2e e2e: only test a single encrypted clone/snapshot 2021-04-14 03:59:28 +00:00
examples deploy: use serviceAccountName instead of serviceAccount in yamls 2021-04-06 09:00:35 +00:00
internal rbd: modified logic to check image watchers 2021-04-19 16:30:55 +00:00
scripts e2e: remove losetup workaround for minikube 2021-04-19 13:30:57 +00:00
troubleshooting/tools util: Fix tracevol to use --config for oc only 2020-08-25 10:04:19 +00:00
vendor rebase: rename kube-storage to csi-addons 2021-04-06 10:59:58 +00:00
.commitlintrc.yml ci: fix typo in commitlintrc.yml 2020-10-21 23:04:18 +00:00
.gitignore build: add .test-container-id to .gitignore 2020-08-18 14:34:08 +00:00
.mergify.yml ci: add mergify rules for release 3.3 2021-04-15 17:39:49 +05:30
.pre-commit-config.yaml ci: Add pre-commit hook to catch issues locally 2020-08-19 16:01:16 +00:00
.travis.yml ci: use "devel" branch instead of "master" 2021-03-01 10:51:30 +05:30
build.env rebase: update minikube to version 1.19.0 2021-04-19 11:15:57 +00:00
deploy.sh deploy: use "devel" branch instead of "master" 2021-03-01 10:51:30 +05:30
go.mod rebase: rename kube-storage to csi-addons 2021-04-06 10:59:58 +00:00
go.sum rebase: rename kube-storage to csi-addons 2021-04-06 10:59:58 +00:00
LICENSE Removing appendix from license. 2019-08-09 15:16:46 +00:00
Makefile build: regenerate scripts/golangci.yml if build.env was updated 2021-03-17 13:38:46 +00:00
README.md doc: rename master to devel 2021-04-16 06:10:46 +00:00

README.md

Ceph CSI

Go Report Card Build Status

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

Supported CO platforms

Ceph CSI drivers are currently developed and tested exclusively on Kubernetes environments. There is work in progress to make this CO independent and thus support other orchestration environments in the future.

NOTE:

  • csiv0.3 is deprecated with release of csi v1.1.0

Support Matrix

Ceph-CSI features and available versions

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 Alpha >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.17.0
Provision volume from snapshot Alpha >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.17.0
Provision volume from another volume Alpha >= 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
Metrics Support Beta >= v1.2.0 >= v1.1.0 Nautilus (>=14.0.0) >= v1.15.0
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 Alpha >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.3) >= v1.17.0
Provision volume from snapshot Alpha >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.3) >= v1.17.0
Provision volume from another volume Alpha >= 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
Metrics 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
v3.3.0 (Release) quay.io/cephcsi/cephcsi v3.3.0
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 other Monday,Tuesday,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: