Deploy the wbstack-clusterissuers helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the `wbstack-clusterissuers` Helm chart on Digital Ocean's Kubernetes service using Pulumi, you will need to perform the following steps:

1. Set up a DigitalOcean Kubernetes cluster.
2. Deploy the `wbstack-clusterissuers` Helm chart to the DigitalOcean Kubernetes cluster.

We will use Pulumi's DigitalOcean and Kubernetes packages, and the Pulumi TypeScript SDK to accomplish these steps. I'll explain the process and provide you with the corresponding Pulumi program.

### Step 1: Set up a DigitalOcean Kubernetes Cluster

We will define a Kubernetes cluster on DigitalOcean using the `digitalocean.KubernetesCluster` resource from Pulumi's DigitalOcean package. This will provision a new Kubernetes cluster for us.

### Step 2: Deploy the Helm Chart

After setting up the cluster, we will deploy the Helm chart onto the cluster using the `kubernetes.helm.v3.Chart` resource from Pulumi's Kubernetes package. This will allow us to specify the Helm chart that we need to install, which is `wbstack-clusterissuers`. We will provide the chart's details, such as name, version, and any custom value overrides.

It's good practice to ensure that the Kubernetes provider is configured to connect to the DigitalOcean Kubernetes cluster created in the first step. This will allow Pulumi to manage resources in the correct cluster.

Now, let's proceed to the actual Pulumi program:
```typescript
import * as pulumi from "@pulumi/pulumi";
import * as digitalocean from "@pulumi/digitalocean";
import * as k8s from "@pulumi/kubernetes";

// Step 1: Create a DigitalOcean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-k8s-cluster", {
    region: digitalocean.Regions.NYC1,  // Feel free to choose a different region
    version: "latest",  // This will use the latest available version of Kubernetes
    nodePool: {
        name: "default",
        size: digitalocean.DropletSlugs.DropletS2VCPU2GB, // Choose the desired size for the node
        nodeCount: 2,  // Adjust the number of nodes as needed
    },
});

// Step 2: Define the Helm chart for wbstack-clusterissuers.
// Please replace `chartVersion` and `repoURL` with actual values if available.
const helmChart = new k8s.helm.v3.Chart("wbstack-clusterissuers-chart", {
    chart: "wbstack-clusterissuers",
    version: "chartVersion", // Specify the version of the Helm chart you intend to deploy
    fetchOpts: {
        repo: "repoURL",  // Specify the Helm repository URL where the chart is hosted
    },
}, { provider: new k8s.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig }) });

// Optional: Export the cluster's name and kubeconfig
export const clusterName = cluster.name;
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

```

Here's what the code above does:

- We import the required packages from Pulumi's module ecosystem.
- We create a new DigitalOcean Kubernetes cluster with two nodes in the `NYC1` region. The cluster will use the latest available version of Kubernetes.
- We define the `wbstack-clusterissuers` Helm chart with a version and repository that must be specified by you if they are known.
- We instruct Pulumi to use the `kubeconfig` from the newly created DigitalOcean Kubernetes cluster to connect to it when deploying the Helm chart.
- We export the name and `kubeconfig` of the cluster as stack outputs that can be used for connecting to the cluster with `kubectl` after the deployment.

Please note you'll need to replace the `chartVersion` and `repoURL` placeholders with the actual version of the Helm chart and the URL of the Helm repository where the `wbstack-clusterissuers` chart is hosted.

You can run this Pulumi program by saving it to a file with a `.ts` extension, installing the necessary dependencies with `npm`, and then running `pulumi up`. Make sure you have Pulumi CLI installed and configured with DigitalOcean as well as `kubectl` for any post-deployment steps.

Remember to store sensitive data like personal access tokens securely, preferably using Pulumi's secret management.