Deploy the helm-csi-driver-nfs helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the `helm-csi-driver-nfs` Helm chart on OpenShift, we'll be using the `kubernetes.helm.sh/v3.Chart` resource from Pulumi's Kubernetes package. This resource allows you to deploy applications using Helm charts directly within your Kubernetes cluster, which, in this case, is an OpenShift cluster.

Before we begin, make sure you have the following prerequisites set up:
1. Pulumi CLI installed and configured.
2. Access to an OpenShift cluster and configured `kubectl` to communicate with it.
3. Helm chart details for the `csi-driver-nfs` Helm chart.

The Pulumi Kubernetes provider uses the same configuration as `kubectl` for cluster access, so if you can access your cluster using `kubectl`, you should be able to deploy resources with Pulumi.

Below is a TypeScript program that uses the Pulumi Kubernetes provider to deploy the `helm-csi-driver-nfs` Helm chart. The `Chart` resource type manages a set of Kubernetes resources as specified by a Helm chart.

Here is the TypeScript code for deploying the chart:

```typescript
import * as k8s from "@pulumi/kubernetes";

const chartName = "csi-driver-nfs";
const chartRepo = "https://kubernetes-sigs.github.io/nfs-ganesha-server-and-external-provisioner/";
const chartVersion = "3.0.0"; // specify the chart version you want to deploy
const namespace = "kube-system"; // specify the namespace where you want to deploy the chart

const nfsChart = new k8s.helm.v3.Chart(chartName, {
    chart: chartName,
    version: chartVersion,
    fetchOpts: { 
        repo: chartRepo,
    },
    namespace: namespace,
    // If you need to provide custom values to the chart, you can include a 'values' object.
    values: {
        // specify any custom values here, for example:
        // storageClass:
        //   archiveOnDelete: false
    },
}, { provider: k8sProvider });

// Export the chart's status to indicate whether it's ready.
export const chartStatus = nfsChart.status;
```

This program creates an instance of the `Chart` resource provided by the Pulumi Kubernetes package. It specifies the chart name, version, and repository.

Also, notice the `values` object. This is where you would pass any configuration options that the NFS CSI driver chart accepts. In the code above, as an example, I've commented out how you could disable archiving of persistent volumes upon deletion, but this is just illustrative. Consult the chart's documentation for the correct values you should use.

We've exported a `chartStatus` constant, which can give you information about the deployment status of your Helm chart. Once the program runs successfully, you can use the Pulumi CLI to check if the deployment was successful and if the resources are in the correct state.

Remember to replace `chartVersion`, `namespace`, and any necessary values in the `values` object with the appropriate values for your use case.

To deploy this program:
1. Create a new directory, navigate into it, and run `pulumi new kubernetes-typescript`.
2. Replace the content of `index.ts` with the code provided above.
3. Run `pulumi up` to preview and deploy the changes.

Pulumi will ask you to confirm the deployment by showing you the planned changes. If everything looks good, you can confirm, and Pulumi will deploy the Helm chart to your OpenShift cluster.