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update example rbd PVC from ReadWriteMany to ReadWriteOnce as rbd supports ReadWriteMany only if pvc mode is block Signed-off-by: Madhu Rajanna <madhupr007@gmail.com> |
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Ceph CSI
This repo contains [Container Storage Interface(CSI)] (https://github.com/container-storage-interface/) Ceph CSI driver for RBD, CephFS and kubernetes sidecar deployment yamls of provisioner, attacher, node-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/.
Project status
Status: Alpha
The alpha status reflects possible non-backward compatible changes in the future, and is thus not recommended for production use. There is work in progress that would change on-disk metadata for certain operations, possibly breaking backward compatibility.
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.
For Kubernetes versions 1.11 and 1.12, please use 0.3 images and deployments.
For Kubernetes versions 1.13 and above, please use 1.0 images and deployments.
Support Matrix
Ceph-CSI features and available versions
| Plugin | Features | CSI driver Version |
|---|---|---|
| CephFS | Dynamically provision, de-provision File mode RWO volume | >=v0.3.0 |
| Dynamically provision, de-provision File mode RWX volume | >=v0.3.0 | |
| Creating and deleting snapshot | - | |
| Provision volume from snapshot | - | |
| Provision volume from another volume | - | |
| Resize volume | - | |
| RBD | Dynamically provision, de-provision Block mode RWO volume | >=v0.3.0 |
| Dynamically provision, de-provision Block mode RWX volume | >=v0.3.0 | |
| Dynamically provision, de-provision File mode RWO volume | v1.0.0 | |
| Creating and deleting snapshot | >=v0.3.0 | |
| Provision volume from snapshot | v1.0.0 | |
| Provision volume from another volume | - | |
| Resize volume | - |
Ceph-CSI versions and CSI spec compatibility
| Ceph CSI driver Version | CSI spec version |
|---|---|
| v0.3.0 | v0.3 |
| v1.0.0 | v1.0.0 |
CSI spec and Kubernetes version compatibility
Please refer to the matrix in the Kubernetes documentation.
Contributing to this repo
Please follow [development-guide] (https://github.com/ceph/ceph-csi/tree/master/docs/development-guide.md) and coding style guidelines if you are interested to contribute to this repo.
Troubleshooting
Please submit an issue at: Issues
Contact
Please use the following to reach members of the community:
- Slack: Join our slack channel
- Forums: ceph-csi
- Twitter: @CephCsi