CSI driver for Ceph
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Artur Troian 82fd1e5248 util: getCgroupPidsFile produces striped path when extra : present
This commit uses `string.SplitN` instead of `string.Split`.
The path for pids.max has extra `:` symbols in it due to which
getCgroupPidsFile() splits the string into 5 tokens instead of
3 leading to loss of part of the path.
As a result, the below error is reported:
`Failed to get the PID limit, can not reconfigure: open
/sys/fs/cgroup/pids/system.slice/containerd.service/
kubepods-besteffort-pod183b9d14_aed1_4b66_a696_da0c738bc012.slice/pids.max:
no such file or directory`
SplitN takes an argument n and splits the string
accordingly which helps us to get the desired
file path.

Fixes: #2337

Co-authored-by: Yati Padia <ypadia@redhat.com>
Signed-off-by: Yati Padia <ypadia@redhat.com>
(cherry picked from commit 16ec97d8f7)
2021-08-04 07:11:26 +00:00
.github ci: ignore spell check for design proposal images 2021-07-28 11:54:59 +05:30
assets feat: Adds Ceph logo as icon for Helm charts 2019-08-20 05:34:28 +00:00
charts deploy: revert changes made for 3.4.0 release 2021-07-30 06:45:38 +00:00
cmd rbd: add volume healer 2021-07-16 16:30:58 +00:00
deploy deploy: revert changes made for 3.4.0 release 2021-07-30 06:45:38 +00:00
docs doc: update the upgrade documentation to reflect 3.4.0 changes 2021-07-28 21:14:35 +05:30
e2e e2e: validate images in trash for rados namespace 2021-07-28 03:48:33 +00:00
examples util: allow configuring VAULT_BACKEND for Vault connection 2021-07-22 13:02:47 +00:00
internal util: getCgroupPidsFile produces striped path when extra : present 2021-08-04 07:11:26 +00:00
scripts deploy: revert changes made for 3.4.0 release 2021-07-30 06:45:38 +00:00
troubleshooting/tools util: Fix tracevol to use --config for oc only 2020-08-25 10:04:19 +00:00
vendor rebase: add go-ceph rbd admin package to vendor 2021-07-06 14:41:48 +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 backport rules for release-v3.4 2021-07-28 12:53:58 +05:30
.pre-commit-config.yaml ci: Add pre-commit hook to catch issues locally 2020-08-19 16:01:16 +00:00
build.env deploy: revert changes made for 3.4.0 release 2021-07-30 06:45:38 +00:00
deploy.sh build: git config before commit 2021-06-10 16:03:40 +02:00
go.mod rebase: update controller-runtime package to v0.9.2 2021-07-01 03:35:23 +00:00
go.sum rebase: update controller-runtime package to v0.9.2 2021-07-01 03:35:23 +00:00
LICENSE Removing appendix from license. 2019-08-09 15:16:46 +00:00
Makefile ci: pass GITHUB_BASE_REF when running commitlint 2021-06-07 18:19:23 +05:30
README.md doc: lift clone feature support to Beta 2021-07-21 06:57:10 +00:00

Ceph CSI

Go Report
Card

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

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
v3.3.1 (Release) quay.io/cephcsi/cephcsi v3.3.1
v3.3.0 (Release) quay.io/cephcsi/cephcsi v3.3.0
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 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: