ibm-vpc-block-csi-driver

IBM VPC Block Container Storage Interface (CSI) Driver provides a CSI interface used by Container Orchestrators to manage the lifecycle of IBM VPC Block Data volumes.

Supported orchestration platforms

The following are the supported orchestration platforms suitable for deployment for IBM VPC Block CSI Driver.

Orchestration platform	Version	Architecture
Red Hat® OpenShift®	4.7	x86
Red Hat® OpenShift®	4.8	x86
Red Hat® OpenShift®	4.9	x86
Kubernetes	1.19	x86
Kubernetes	1.20	x86
Kubernetes	1.21	x86

Prerequisites

Following are the prerequisites to use the IBM VPC Block CSI Driver:

User should have either Red Hat® OpenShift® or kubernetes cluster on IBM VPC Gen 2 infrastructure.
Should have compatible orchestration platform.
Install and configure ibmcloud is CLI or get the required worker/node details by using IBM Cloud Console
Cluster's worker node should have following labels, if not please apply labels before deploying IBM VPC Block CSI Driver.

"ibm-cloud.kubernetes.io/worker-id"
"failure-domain.beta.kubernetes.io/region"
"failure-domain.beta.kubernetes.io/zone"
"topology.kubernetes.io/region"
"topology.kubernetes.io/zone"

Apply worker labels

Please use apply-required-setup.sh script for all the nodes in the cluster which will need couple of inputs like

instanceID: That you can get from ibmcloud is ins

node-name: this is as per node name in the kubernetes node check by using kubectl get nodes

region-of-instanceID: region of the instanceID, this you can get the by using ibmcloud is in <instanceID>

zone-of-instanceID: Zone of the instanceID, this you can get the by using ibmcloud is in <instanceID>

Example :- ./apply-required-setup.sh

Build the driver

For building the driver docker and GO should be installed on the system

On your local machine, install docker and Go.
GO version should be >=1.16
Set the GOPATH environment variable.
Build the driver image

Clone the repo or your forked repo
```
$ mkdir -p $GOPATH/src/github.com/kubernetes-sigs
$ cd $GOPATH/src/github.com/kubernetes-sigs/
$ git clone https://github.com/kubernetes-sigs/ibm-vpc-block-csi-driver.git
$ cd ibm-vpc-block-csi-driver
```
Build project and runs testcases
```
$ make
```
Build container image for the driver
```
$ make buildimage
```
Push image to registry

Image should be pushed to any registry from which cluster worker nodes have access to pull

You can push the driver image to docker.io registry or IBM public registry under your namespace.

For pushing to IBM registry:

Create an image pull secret in your cluster
1. ibmcloud login to the target region
2. Run - ibmcloud cr region-set global
3. Run - ibmcloud cr login
4. Make sure kubectl is configured to use the cluster
5. Review and retrieve the following values for your image pull secret.
  
  <docker-username> - Enter the string: iamapikey.
  
  <docker-password> - Enter your IAM API key. For more information about IAM API keys, see Understanding API keys .
  
  <docker-email> - Enter the string: iamapikey.
6. Run the following command to create the image pull secret in your cluster. Note that your secret must be named icr-io-secret
```
 kubectl create secret docker-registry icr-io-secret --docker-server=icr.io --docker-username=iamapikey --docker-password=-<iam-api-key> --docker-email=iamapikey -n kube-system
```

Deploy CSI driver on your cluster

Edit slclient_Gen2.toml for your cluster.

IBM VPC endpoints which supports Gen2 is documented here

Install kustomize tool. The instructions are available here
Export cluster config i.e configuring kubectl command
Deploy IBM VPC Block CSI Driver on your cluster
- You can use any overlays available under deploy/kubernetes/driver/kubernetes/overlays/ and edit the image tag if you want to use your own build image from this source code, although default overlays are already using released IBM VPC Block CSI Driver image
- gcr.io/k8s-staging-cloud-provider-ibm/ibm-vpc-block-csi-driver:master image is always the latest image build using master branch code.
- Example using stage overlay to update the image tag
  - Change iks-vpc-block-driver image name in deploy/kubernetes/driver/kubernetes/overlays/stage/controller-server-images.yaml
  - Change iks-vpc-block-driver image name in deploy/kubernetes/driver/kubernetes/overlays/stage/node-server-images.yaml
- Deploy plugin
  - bash deploy/kubernetes/driver/kubernetes/deploy-vpc-block-driver.sh stage

Testing

Create storage classes
- ls deploy/kubernetes/storageclass/ | xargs -I classfile kubectl apply -f deploy/kubernetes/storageclass/classfile
Create PVC
- kubectl create -f examples/kubernetes/validPVC.yaml
Create POD with volume
- kubectl create -f examples/kubernetes/validPOD.yaml

Delete CSI driver from your cluster

Delete plugin
- bash deploy/kubernetes/driver/kubernetes/delete-vpc-csi-driver.sh stage

E2E Tests

Please refer this repository for e2e tests.

How to contribute

If you have any questions or issues you can create a new issue here .

Pull requests are very welcome! Make sure your patches are well tested. Ideally create a topic branch for every separate change you make. For example:

Fork the repo
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Added some feature')
Push to the branch (git push origin my-new-feature)
Create new Pull Request
Add the test results in the PR

Vendor changes

For any changes to go.mod or go.sum, be sure to run go mod vendor to update dependencies in the vendor/ directory. You can verify that the vendor directory is up-to-date before filing a PR by running hack/verify-vendor.sh.