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CSI driver for Ceph
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Niels de Vos b7703faf37 util: make inode metrics optional in FilesystemNodeGetVolumeStats() 
CephFS does not have a concept of "free inodes", inodes get allocated
on-demand in the filesystem.

This confuses alerting managers that expect a (high) number of free
inodes, and warnings get produced if the number of free inodes is not
high enough. This causes alerts to always get reported for CephFS.

To prevent the false-positive alerts from happening, the
NodeGetVolumeStats procedure for CephFS (and CephNFS) will not contain
inodes in the reply anymore.

See-also: https://bugzilla.redhat.com/2128263
Signed-off-by: Niels de Vos <ndevos@redhat.com>
2022-10-13 19:02:47 +00:00
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README.md

Ceph CSI

GitHub release Mergify Status Go Report Card TODOs CII Best Practices

This repo contains the Ceph Container Storage Interface (CSI) driver for RBD, CephFS and Kubernetes sidecar deployment YAMLs to support CSI functionality: provisioner, attacher, resizer, driver-registrar and snapshotter.

Overview

Ceph CSI plugins implement an interface between a CSI-enabled Container Orchestrator (CO) and Ceph clusters. They enable 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 the 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 in Kubernetes environments.

Ceph CSI Version Container Orchestrator Name Version Tested
v3.7.1 Kubernetes v1.22, v1.23, v1.24
v3.7.0 Kubernetes v1.22, v1.23, v1.24
v3.6.1 Kubernetes v1.21, v1.22, v1.23
v3.6.0 Kubernetes v1.21, v1.22, v1.23

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

NOTE:

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

For example, if the Ceph CSI latest major version is 3.7.0 today, support is provided for the versions above 3.6.0. If users are running an unsupported Ceph CSI version, they will be asked to upgrade when requesting support.

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 Block mode RWOP volume Alpha >= v3.5.0 >= v1.5.0 Nautilus (>=14.0.0) >= v1.22.0
Dynamically provision, de-provision File mode RWO volume GA >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.14.0
Dynamically provision, de-provision File mode RWOP volume Alpha >= v3.5.0 >= v1.5.0 Nautilus (>=14.0.0) >= v1.22.0
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 GA >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.17.0
Provision volume from snapshot GA >= v1.0.0 >= v1.0.0 Nautilus (>=14.0.0) >= v1.17.0
Provision volume from another volume GA >= 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 GA >= v1.2.0 >= v1.1.0 Nautilus (>=14.0.0) >= v1.15.0
Volume/PV Metrics of Block Mode Volume GA >= 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 GA >= v1.1.0 >= v1.0.0 Nautilus (>=14.2.2) >= v1.14.0
Dynamically provision, de-provision File mode RWX volume GA >= 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
Dynamically provision, de-provision File mode RWOP volume Alpha >= v3.5.0 >= v1.5.0 Nautilus (>=14.0.0) >= v1.22.0
Creating and deleting snapshot GA >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.4) >= v1.17.0
Provision volume from snapshot GA >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.4) >= v1.17.0
Provision volume from another volume GA >= v3.1.0 >= v1.0.0 Octopus (>=v15.2.4) >= 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 GA >= v1.2.0 >= v1.1.0 Nautilus (>=v14.2.2) >= v1.15.0
NFS Dynamically provision, de-provision File mode RWO volume Alpha >= v3.6.0 >= v1.0.0 Pacific (>=16.2.0) >= v1.14.0
Dynamically provision, de-provision File mode RWX volume Alpha >= v3.6.0 >= v1.0.0 Pacific (>=16.2.0) >= v1.14.0
Dynamically provision, de-provision File mode ROX volume Alpha >= v3.6.0 >= v1.0.0 Pacific (>=16.2.0) >= v1.14.0
Dynamically provision, de-provision File mode RWOP volume Alpha >= v3.6.0 >= v1.5.0 Pacific (>=16.2.0) >= v1.22.0
Expand volume Alpha >= v3.7.0 >= v1.1.0 Pacific (>=16.2.0) >= v1.15.0
Creating and deleting snapshot Alpha >= v3.7.0 >= v1.1.0 Pacific (>=16.2.0) >= v1.17.0
Provision volume from snapshot Alpha >= v3.7.0 >= v1.1.0 Pacific (>=16.2.0) >= v1.17.0
Provision volume from another volume Alpha >= v3.7.0 >= v1.1.0 Pacific (>=16.2.0) >= v1.16.0

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
v3.7.1 (Release) quay.io/cephcsi/cephcsi v3.7.1
v3.7.0 (Release) quay.io/cephcsi/cephcsi v3.7.0
v3.6.1 (Release) quay.io/cephcsi/cephcsi v3.6.1
v3.6.0 (Release) quay.io/cephcsi/cephcsi v3.6.0
Deprecated Ceph CSI Release/Branch Container image name Image Tag
v3.5.1 (Release) quay.io/cephcsi/cephcsi v3.5.1
v3.5.0 (Release) quay.io/cephcsi/cephcsi v3.5.0
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
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: