Update csidriver.yaml spec #73
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As per VPC file csi driver use case, we require the k8s to update the ownership of volume via fsGroup in case the volume is used by an application running as non root.
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ambiknai
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Mar 20, 2024
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@prankulmahajan Is this capability added in code?
CSI drivers that support this feature should advertise the [VOLUME_MOUNT_GROUP](https://github.com/container-storage-interface/spec/blob/master/spec.md#nodegetcapabilities) node capability.
After recognizing this information, the kubelet passes the fsGroup information to the CSI driver during pod startup. This is done through the [NodeStageVolumeRequest](https://github.com/container-storage-interface/spec/blob/v1.7.0/spec.md#nodestagevolume) and [NodePublishVolumeRequest](https://github.com/container-storage-interface/spec/blob/v1.7.0/spec.md#nodepublishvolume) CSI calls.
This capilility was added for drivers which support option to pass fsGroup as mount option during mount. But in IBM case that is not there. So we cannot delegate the fsGroup changes to CSI driver but rather have to rely on kubelet to do that us. |
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As per VPC file csi driver use case, we require the k8s to update the ownership of volume via fsGroup in case the volume is used by an application running as non root.