Deploy the cadc-tap helm chart on AWS EKS

Question

Pulumi · Accepted Answer

Deploying a Helm chart on an Amazon EKS cluster involves several steps that can be automated using Pulumi's infrastructure as code tools. You'll need an EKS cluster, and assuming you have the `cadc-tap` Helm chart already available, you can deploy it to the cluster using Pulumi's Kubernetes provider. The following program outlines these steps and provides you with the necessary Pulumi TypeScript code to create the EKS cluster and deploy the `cadc-tap` Helm chart to it.

### Step 1: Create the EKS Cluster
First, you need to create an Amazon EKS cluster. Pulumi's `awsx` library simplifies the creation of an EKS cluster by abstracting away much of the boilerplate code.

### Step 2: Deploy the Helm Chart
Once you have your EKS cluster, you can use Pulumi's Kubernetes provider to deploy the `cadc-tap` Helm chart to it.

Here is the Pulumi program that accomplishes this:

```typescript
import * as awsx from '@pulumi/awsx';
import * as eks from '@pulumi/eks';
import * as k8s from '@pulumi/kubernetes';

// Step 1: Create an EKS cluster.
const cluster = new eks.Cluster("my-cluster", {
    desiredCapacity: 2, // Set the number of worker nodes
    minSize: 1,
    maxSize: 3,
    storageClasses: "gp2", // Set your desired storage class for the EKS cluster
    deployDashboard: false, // Dashboard is not recommended in production environments
});

// Export the cluster's kubeconfig.
export const kubeconfig = cluster.kubeconfig;

// Step 2: Deploy the 'cadc-tap' Helm chart to the EKS cluster.
const cadcTapChart = new k8s.helm.v3.Chart("cadc-tap", {
    chart: "cadc-tap",
    // You will need to specify the repository that contains the 'cadc-tap' chart
    // If it's a public repository, you can use `repo: "<url_to_your_repository>"`.
    namespace: "default", // Use the desired namespace, 'default' is used here for simplicity
    // If your chart requires values, you can specify them in the `values` property.
    values: {
        // Your 'cadc-tap' chart values go here
    },
}, { provider: cluster.provider });

// Optional: Export the Helm chart deployment status
export const cadcTapChartStatus = cadcTapChart.status;

```

### Explanation
- The `eks.Cluster` resource from the `@pulumi/eks` package is used to create the EKS cluster. Here, you specify the desired number of worker nodes, the storage class, and whether you want to deploy the Kubernetes Dashboard.
  
- The `k8s.helm.v3.Chart` resource from the `@pulumi/kubernetes` package deploys the Helm chart to the created EKS cluster. You'll need to specify the actual Helm chart name and optionally the repository where the Helm chart is stored. If the Helm chart requires values, you can provide them in the `values` object.

### Important Notes:
- You will need to have Pulumi CLI installed and configured for AWS access to run this program.
- The name of the Helm chart, `cadc-tap`, used in this example, is illustrative. Replace it with the correct name of the Helm chart you want to deploy, along with any specific values it requires.
- Depending on the `cadc-tap` Helm chart specifications, you may also need to install and configure AWS Load Balancer Controller or any other dependencies for ingress control.

If you need more detailed explanations for these steps or have additional questions about Pulumi, feel free to ask.