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The FastCFS Container Storage Interface (CSI) Driver provides a CSI interface used by Container Orchestrators to manage the lifecycle of FastCFS volumes.
Status: beta
- Static Provisioning - create a new or migrating existing FastCFS volumes, then create persistence volume (PV) from the FastCFS volume and consume the PV from container using persistence volume claim (PVC).
- Dynamic Provisioning - uses persistence volume claim (PVC) to request the Kuberenetes to create the FastCFS volume on behalf of user and consumes the volume from inside container.
- Mount Option - mount options could be specified in persistence volume (PV) to define how the volume should be mounted.
- Volume Resizing - expand the volume size. The corresponding CSI feature (
ExpandCSIVolumes
) is beta since Kubernetes 1.16.
Note fastcfs-csi does not supports deletion for static PV.
persistentVolumeReclaimPolicy
in PV spec must be set to Retain
to avoid PV delete attempt in csi-provisioner.
Following sections are Kubernetes specific. If you are Kubernetes user, use followings for driver features, installation steps and examples.
FastCFS CSI Driver \ Kubernetes Version | v1.17 | v1.18+ |
---|---|---|
master branch | ? | yes |
v0.2.0 | ? | yes |
v0.1.0 | ? | yes |
- FastCFS
v2.2.0
or later - Enable FastCFS Auth
auth_enabled = true
- Configuration files such as FastCFS client, auth module and cluster need to provide HTTP or HTTPS access. You can copy all configuration files of FastCFS to the root directory of the web server:
- e.g:
cp -r /etc/fastcfs /path/www && cd /path/www && python3 -m http.server 8080
.
- e.g:
- Get yourself familiar with how to setup Kubernetes and have a working Kubernetes cluster:
- Enable flag
--allow-privileged=true
forkubelet
andkube-apiserver
- Enable
kube-apiserver
feature gates--feature-gates=CSINodeInfo=true,CSIDriverRegistry=true
- Enable
kubelet
feature gates--feature-gates=CSINodeInfo=true,CSIDriverRegistry=true
- Enable flag
The driver requires FastCFS secret to talk to FastCFS to manage the volume on user's behalf. There is a method to grant driver permission:
- Using secret object - create an admin and user with proper permission, put that user's credentials (The default directory of FastCFS credentials is
/etc/fastcfs/auth/keys
) in secret manifest then deploy the secret.
curl https://raw.githubusercontent.com/happyfish100/fastcfs-csi/master/deploy/kubernetes/secret.yaml > secret.yaml
# Edit the secret with user credentials
kubectl apply -f secret.yaml
Then reference this key in your storage class.
By default, driver tolerates taint CriticalAddonsOnly
and has tolerationSeconds
configured as 300
, to deploy the driver on any nodes, please set helm Value.node.tolerateAllTaints
to true before deployment
Please see the compatibility matrix above before you deploy the driver
kubectl apply -k "github.com/happyfish100/fastcfs-csi/deploy/kubernetes/overlays/dev/?ref=main"
Edit the configmap and replace the cluster config. ConfigMap example
curl https://raw.githubusercontent.com/happyfish100/fastcfs-csi/master/deploy/kubernetes/base/csiplugin-configmap.yaml > csiplugin-configmap.yaml
kubectl replace -f csiplugin-configmap.yaml
Verify driver is running:
kubectl get pods
Alternatively, you could also install the driver using helm:
Add the fastcfs-csi Helm repository:
helm repo add fastcfs-csi https://happyfish100.github.io/fastcfs-csi
helm repo update
Then install a release of the driver using the chart
helm upgrade --install fastcfs-csi fastcfs-csi/fcfs-csi-driver
To view driver debug logs, run the CSI driver with -v=5
command line option
Make sure you follow the Prerequisites before the examples:
Please refer to the matrix in the Kubernetes documentation.
Please go through CSI Spec and General CSI driver development guideline to get some basic understanding of CSI driver before you start.
- Golang 1.15.+
- Ginkgo in your PATH for end-to-end testing
- Docker 17.05+ for releasing
Dependencies are managed through go module. To build the project, first turn on go mod using export GO111MODULE=on
, then build the project using: make
- To execute e2e tests, run:
make test-e2e-single-nn
andmake test-e2e-multi-nn
(Now it can only be executed locally, and you can connect to the FastCFS cluster locally)
- Build image :
make image-csi
The helm chart for this project is in the charts/fcfs-csi-driver
directory. The manifests for this project are in the deploy/kubernetes
directory. All the manifests except kustomize patches are generated by running helm template
. This keeps the helm chart and the manifests in sync.
When updating the helm chart:
- Generate manifests:
make generate-kustomize
- There are values files in
deploy/kubernetes/values
used for generating some manifests - When adding a new resource template to the helm chart please update the
generate-kustomize
make target, thedeploy/kubernetes/values
files, and the appropriate kustomization.yaml file(s).