Curvefs CSI Driver

Introduction

The Curvefs CSI Driver implements the CSI specification for container orchestrators to manager Curvefs File Systems.

Prerequisites

Kubernetes 1.18+

CSI Interface Implemented

ControllerServer: CreateVolume, DeleteVolume, ValidateVolumeCapabilities
NodeServer: NodePublishVolume, NodeUnpublishVolume, NodeGetInfo, NodeGetCapabilities
IdentityServer: GetPluginInfo, Probe, GetPluginCapabilities

How to use

via kubectl

add label to node

kubectl label node <nodename> curvefs-csi-controller=enabled
kubectl label node <nodename> curvefs-csi-node=enabled

deploy csi driver

kubectl apply -f deploy/csi-driver.yaml
kubectl apply -f deploy/csi-rbac.yaml
kubectl apply -f deploy/csi-controller-deployment.yaml
kubectl apply -f deploy/csi-node-daemonset.yaml

attention: if you want to enable DiskCache, read the related section below

create storage class and pvc

# copy and fill in the blanks in storageclass-default.yaml
kubectl apply -f storageclass.yaml
# copy and modify the pvc-default.yaml
kubectl apply -f pvc.yaml

now you can bind this pvc to a pod

DiskCache related

what is DiskCache? A disk based cache used by client to increase the io performance of client.

If you want to enable it:

check out content in csi-node-daemonset-enable-cache.yaml to bind the cache dir on curvefs-csi-node to pod's /curvefs/client/data/cache
add "diskCache.diskCacheType=2" or "diskCache.diskCacheType=1" to your mountOptions section of storageclass.yaml, 2 for read and write, 1 for read

Build Status

Curvefs CSI Driver Version	Curvefs Version Commit	Curvefs CSI Driver Image
v1.0.0	c93730d4d0ba0e4b7843e30e384dd44640e4d547	harbor.cloud.netease.com/curve/curvefs:csi-v1.0.0

Follow-up Work

more create/mount options support (require future curvefs support)
move sensitive info like s3 ak/sk to secret
subpath mount support (require future curvefs support)
move every mount into a seperate pod, inspired by juicefs-csi
quota(bytes) support (require future curvefs support)

License

h0hmj/curvefs-csi

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