Container Storage Interface (CSI) Storage Plugin Release 1.2.0 (FUSE POSIX)

These notes describe release 1.2.0 of the Container Storage Interface (CSI) Storage Plugin for FUSE POSIX.

You may also be interested in the Kubernetes Release Notes.

Version	1.2.0
Release Date	November 2020
MapR Version Interoperability	Compatible with release 6.1.0 and later.
Kubernetes Compatibility	Kubernetes 1.17.0 and later.*
OpenShift Compatibility	4.4 and later.
CSI Driver Downloads	See Downloads (CSI) for more information.
Documentation	Overview: Container Storage Interface (CSI) Storage Plugin Overview Installation: Installing, Uninstalling, and Upgrading the Container Storage Interface (CSI) Storage Plugin Supported Versions: CSI Version Compatibility
Related Resources	https://mapr.com/solutions/data-fabric/kubernetes/

* Kubernetes alpha features are not supported.

New in this Release

This release of the Container Storage Interface (CSI) Storage Plugin increments the version of the csi-kdfplugin to 1.2.0. Release 1.2.0 includes support for:

Volume cloning for dynamic provisioning. For more information, see CSI Volume Cloning.
Snapshot restore for dynamic provisioning. For more information, see Snapshot & Restore Feature.
Dynamic and static provisioning of raw block volumes. For more information, see Raw Block Volumes.

You can access the csi-kdfplugin by installing the custom resource definition (CRD) using the csi-maprkdf-v1.2.0.yaml file. Or you can build your own container and point to the plugin on the Docker hub at maprtech/csi-kdfplugin:1.2.0. For installation information, see Installing, Uninstalling, and Upgrading the Container Storage Interface (CSI) Storage Plugin.

Patches

None.

Limitations

Note the following limitations:

CSI Driver version 1.2.0 does not support coexistence with the FlexVolume Driver on the same Kubernetes cluster.
All nodes in the Kubernetes cluster must use the same Linux OS. Configuration files are available to support the following Linux distributions:
- CentOS
- RHEL (use CentOS configuration file)
- Ubuntu
The Container POSIX client package is included by default when you install the Container Storage Interface (CSI) Storage Plugin. The Basic, Container, or Platinum POSIX client can be enabled by specifying a parameter in the pod spec.
The CSI Driver does not include support for inline volumes in pods. It supports only PersistentVolumes.

Known Issues

Note the following known issues:

Snapshot restore fails if the snapshot contains symlinks to other files in the directory.

Resolved Issues

Issue	Description
CSI-30	Enable memory profiling for fuse process w/ trackMemory : true option
CSI-241	Support volume clone for dynamic provisioning
CSI-242	Support snapshot restore for dynamic provisioning
CSI-243	Support for OpenShift 4.4, 4.5, 4.6+ & Kubernetes 1.17, 1.18, 1.19+
CSI-248	Retain fuse logs after pod delete w/ retainLogs: true option
REL-301	Update kdfplugin image w/ 6.2 release bits on centos8