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Since kubernetes 1.16 clone ( create a new volume from exisiing volume) functionality is at Beta state and kubernetes v1.18, the snapshot functionality has been lifted to GA. Ceph CSI drivers have been supporting this feature for last few releases and users are heavily using this feature since then. We also have good amount of e2e test case which cover volume creation from PVC backend or iow, PVC as a datasource. With that, this PR proposes of lifting this feature support to Beta with v3.4.0 version. Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
165 lines
10 KiB
Markdown
165 lines
10 KiB
Markdown
# Ceph CSI
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[](https://goreportcard.com/report/github.com/ceph/ceph-csi)
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- [Ceph CSI](#ceph-csi)
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- [Overview](#overview)
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- [Project status](#project-status)
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- [Supported CO platforms](#supported-co-platforms)
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- [Support Matrix](#support-matrix)
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- [Ceph-CSI features and available versions](#ceph-csi-features-and-available-versions)
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- [CSI spec and Kubernetes version compatibility](#csi-spec-and-kubernetes-version-compatibility)
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- [Ceph CSI Container images and release compatibility](#ceph-csi-container-images-and-release-compatibility)
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- [Contributing to this repo](#contributing-to-this-repo)
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- [Troubleshooting](#troubleshooting)
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- [Weekly Bug Triage call](#weekly-bug-triage-call)
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- [Dev standup](#dev-standup)
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- [Contact](#contact)
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This repo contains Ceph
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[Container Storage Interface (CSI)](https://github.com/container-storage-interface/)
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driver for RBD, CephFS and kubernetes sidecar deployment yamls of provisioner,
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attacher, resizer, driver-registrar and snapshotter for supporting CSI functionalities.
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## Overview
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Ceph CSI plugins implement an interface between CSI enabled Container Orchestrator
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(CO) and Ceph cluster. It allows dynamically provisioning Ceph volumes and
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attaching them to workloads.
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Independent CSI plugins are provided to support RBD and CephFS backed volumes,
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- For details about configuration and deployment of RBD plugin, please refer
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[rbd doc](https://github.com/ceph/ceph-csi/blob/devel/docs/deploy-rbd.md) and
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for CephFS plugin configuration and deployment please
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refer [cephfs doc](https://github.com/ceph/ceph-csi/blob/devel/docs/deploy-cephfs.md).
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- For example usage of RBD and CephFS CSI plugins, see examples in `examples/`.
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- Stale resource cleanup, please refer [cleanup doc](docs/resource-cleanup.md).
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NOTE:
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- Ceph CSI **`Arm64`** support is experimental.
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## Project status
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Status: **GA**
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## Supported CO platforms
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Ceph CSI drivers are currently developed and tested **exclusively** on Kubernetes
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environments. There is work in progress to make this CO independent and thus
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support other orchestration environments in the future.
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NOTE:
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- **`csiv0.3`** is deprecated with release of **`csi v1.1.0`**
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## Support Matrix
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### Ceph-CSI features and available versions
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Please refer [rbd nbd mounter](./docs/rbd-nbd.md#support-matrix)
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for its support details.
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| Plugin | Features | Feature Status | CSI Driver Version | CSI Spec Version | Ceph Cluster Version | Kubernetes Version |
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| ------ | --------------------------------------------------------- | -------------- | ------------------ | ---------------- | -------------------- | ------------------ |
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| RBD | Dynamically provision, de-provision Block mode RWO volume | GA | >= v1.0.0 | >= v1.0.0 | Nautilus (>=14.0.0) | >= v1.14.0 |
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| | Dynamically provision, de-provision Block mode RWX volume | GA | >= v1.0.0 | >= v1.0.0 | Nautilus (>=14.0.0) | >= v1.14.0 |
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| | Dynamically provision, de-provision File mode RWO volume | GA | >= v1.0.0 | >= v1.0.0 | Nautilus (>=14.0.0) | >= v1.14.0 |
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| | Provision File Mode ROX volume from snapshot | Alpha | >= v3.0.0 | >= v1.0.0 | Nautilus (>=v14.2.2) | >= v1.17.0 |
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| | Provision File Mode ROX volume from another volume | Alpha | >= v3.0.0 | >= v1.0.0 | Nautilus (>=v14.2.2) | >= v1.16.0 |
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| | Provision Block Mode ROX volume from snapshot | Alpha | >= v3.0.0 | >= v1.0.0 | Nautilus (>=v14.2.2) | >= v1.17.0 |
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| | Provision Block Mode ROX volume from another volume | Alpha | >= v3.0.0 | >= v1.0.0 | Nautilus (>=v14.2.2) | >= v1.16.0 |
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| | Creating and deleting snapshot | Beta | >= v1.0.0 | >= v1.0.0 | Nautilus (>=14.0.0) | >= v1.17.0 |
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| | Provision volume from snapshot | Beta | >= v1.0.0 | >= v1.0.0 | Nautilus (>=14.0.0) | >= v1.17.0 |
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| | Provision volume from another volume | Beta | >= v1.0.0 | >= v1.0.0 | Nautilus (>=14.0.0) | >= v1.16.0 |
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| | Expand volume | Beta | >= v2.0.0 | >= v1.1.0 | Nautilus (>=14.0.0) | >= v1.15.0 |
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| | Volume/PV Metrics of File Mode Volume | Beta | >= v1.2.0 | >= v1.1.0 | Nautilus (>=14.0.0) | >= v1.15.0 |
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| | Volume/PV Metrics of Block Mode Volume | Beta | >= v1.2.0 | >= v1.1.0 | Nautilus (>=14.0.0) | >= v1.21.0 |
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| | Topology Aware Provisioning Support | Alpha | >= v2.1.0 | >= v1.1.0 | Nautilus (>=14.0.0) | >= v1.14.0 |
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| CephFS | Dynamically provision, de-provision File mode RWO volume | Beta | >= v1.1.0 | >= v1.0.0 | Nautilus (>=14.2.2) | >= v1.14.0 |
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| | Dynamically provision, de-provision File mode RWX volume | Beta | >= v1.1.0 | >= v1.0.0 | Nautilus (>=v14.2.2) | >= v1.14.0 |
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| | Dynamically provision, de-provision File mode ROX volume | Alpha | >= v3.0.0 | >= v1.0.0 | Nautilus (>=v14.2.2) | >= v1.14.0 |
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| | Creating and deleting snapshot | Beta | >= v3.1.0 | >= v1.0.0 | Octopus (>=v15.2.3) | >= v1.17.0 |
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| | Provision volume from snapshot | Beta | >= v3.1.0 | >= v1.0.0 | Octopus (>=v15.2.3) | >= v1.17.0 |
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| | Provision volume from another volume | Beta | >= v3.1.0 | >= v1.0.0 | Octopus (>=v15.2.3) | >= v1.16.0 |
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| | Expand volume | Beta | >= v2.0.0 | >= v1.1.0 | Nautilus (>=v14.2.2) | >= v1.15.0 |
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| | Volume/PV Metrics of File Mode Volume | Beta | >= v1.2.0 | >= v1.1.0 | Nautilus (>=v14.2.2) | >= v1.15.0 |
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`NOTE`: The `Alpha` status reflects possible non-backward
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compatible changes in the future, and is thus not recommended
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for production use.
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### CSI spec and Kubernetes version compatibility
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Please refer to the [matrix](https://kubernetes-csi.github.io/docs/#kubernetes-releases)
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in the Kubernetes documentation.
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## Ceph CSI Container images and release compatibility
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| Ceph CSI Release/Branch | Container image name | Image Tag |
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| ----------------------- | ---------------------------- | --------- |
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| devel (Branch) | quay.io/cephcsi/cephcsi | canary |
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| v3.3.1 (Release) | quay.io/cephcsi/cephcsi | v3.3.1 |
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| v3.3.0 (Release) | quay.io/cephcsi/cephcsi | v3.3.0 |
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| v3.2.2 (Release) | quay.io/cephcsi/cephcsi | v3.2.2 |
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| v3.2.1 (Release) | quay.io/cephcsi/cephcsi | v3.2.1 |
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| v3.2.0 (Release) | quay.io/cephcsi/cephcsi | v3.2.0 |
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| v3.1.2 (Release) | quay.io/cephcsi/cephcsi | v3.1.2 |
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| v3.1.1 (Release) | quay.io/cephcsi/cephcsi | v3.1.1 |
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| v3.1.0 (Release) | quay.io/cephcsi/cephcsi | v3.1.0 |
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| v3.0.0 (Release) | quay.io/cephcsi/cephcsi | v3.0.0 |
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| v2.1.2 (Release) | quay.io/cephcsi/cephcsi | v2.1.2 |
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| v2.1.1 (Release) | quay.io/cephcsi/cephcsi | v2.1.1 |
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| v2.1.0 (Release) | quay.io/cephcsi/cephcsi | v2.1.0 |
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| v2.0.1 (Release) | quay.io/cephcsi/cephcsi | v2.0.1 |
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| v2.0.0 (Release) | quay.io/cephcsi/cephcsi | v2.0.0 |
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| v1.2.2 (Release) | quay.io/cephcsi/cephcsi | v1.2.2 |
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| v1.2.1 (Release) | quay.io/cephcsi/cephcsi | v1.2.1 |
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| v1.2.0 (Release) | quay.io/cephcsi/cephcsi | v1.2.0 |
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| v1.1.0 (Release) | quay.io/cephcsi/cephcsi | v1.1.0 |
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| v1.0.0 (Branch) | quay.io/cephcsi/cephfsplugin | v1.0.0 |
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| v1.0.0 (Branch) | quay.io/cephcsi/rbdplugin | v1.0.0 |
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## Contributing to this repo
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Please follow [development-guide](<https://github.com/ceph/ceph-csi/tree/devel/docs/development-guide.md>)
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and [coding style guidelines](<https://github.com/ceph/ceph-csi/tree/devel/docs/coding.md>)
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if you are interested to contribute to this repo.
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## Troubleshooting
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Please submit an issue at: [Issues](https://github.com/ceph/ceph-csi/issues)
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## Weekly Bug Triage call
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We conduct weekly bug triage calls at our slack channel on Tuesdays.
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More details are available [here](https://github.com/ceph/ceph-csi/issues/463)
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## Dev standup
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A regular dev standup takes place every other [Monday,Tuesday,Thursday at
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12:00 PM UTC](https://redhat.bluejeans.com/702977652). Convert to your local
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timezone by executing command `date -d "12:00 UTC"` on terminal
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Any changes to the meeting schedule will be added to the [agenda
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doc](https://docs.google.com/document/d/1K1aerdMpraIh56-skdoEoVF9RZrO4NUcbHtjN-f3u1s).
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Anyone who wants to discuss the direction of the project, design and
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implementation reviews, or general questions with the broader community is
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welcome and encouraged to join.
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- Meeting link: <https://redhat.bluejeans.com/702977652>
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- [Current agenda](https://docs.google.com/document/d/1K1aerdMpraIh56-skdoEoVF9RZrO4NUcbHtjN-f3u1s)
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## Contact
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Please use the following to reach members of the community:
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- Slack: Join our [slack channel](https://cephcsi.slack.com) to discuss
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about anything related to this project. You can join the slack by
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this [invite link](https://bit.ly/2MeS4KY )
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- Forums: [ceph-csi](https://groups.google.com/forum/#!forum/ceph-csi)
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- Twitter: [@CephCsi](https://twitter.com/CephCsi)
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