Deploy the wireguard-pia helm chart on AWS EKS

Question

Pulumi · Accepted Answer

Deploying a Helm chart onto an Amazon EKS cluster involves a few steps: setting up the EKS cluster, installing and configuring Helm, and finally deploying the chart.

Here's how you would use Pulumi to accomplish this task:

1. **Create an EKS Cluster**: We'll create an EKS cluster using the Pulumi EKS package, which provides higher-level abstractions that make it easier to instantiate the cluster.

2. **Setup Helm**: With the cluster in place, we'll set up Helm, the Kubernetes package manager, to deploy applications on the EKS cluster. Pulumi provides a Helm Chart resource that can be used to deploy Helm charts.

3. **Deploy 'wireguard-pia' Helm Chart**: After configuring Helm, we will deploy the 'wireguard-pia' Helm chart to the cluster. This requires the Helm chart's repository URL and specific version details if needed.

The following Pulumi TypeScript program achieves the above-described scenario:

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

// Create an EKS cluster.
const cluster = new eks.Cluster("wireguard-eks", {
    desiredCapacity: 2, // Specify the desired number of cluster nodes.
    minSize: 1,
    maxSize: 3,
    storageClasses: "gp2", // Define the storage class as needed, "gp2" is the General Purpose SSD for AWS.
    deployDashboard: false, // Disable the Kubernetes dashboard (recommended for security reasons).
});

// Create a k8s provider using the created EKS cluster's kubeconfig.
const k8sProvider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeconfig,
});

// Deploy the 'wireguard-pia' Helm chart.
const wireguardChart = new k8s.helm.v3.Chart("wireguard-pia", {
    fetchOpts: {
        repo: "https://helm-repo-containing-wireguard-pia", // Replace with the actual repository URL.
    },
    chart: "wireguard-pia", // The name of the chart.
    version: "1.0.0", // Specify the chart version, replace with desired version.
}, { provider: k8sProvider });

// Export the cluster kubeconfig to access the cluster with kubectl.
export const kubeconfig = cluster.kubeconfig;
```

### Explanation

- `eks.Cluster`: This resource is a high-level component that provisions an EKS cluster with all it's necessary components, like the VPC and IAM roles.

- `k8s.Provider`: We create a Kubernetes provider instance that is configured with the kubeconfig from our EKS cluster. This provider instance allows us to interact with our EKS cluster using Pulumi's Kubernetes resources.

- `k8s.helm.v3.Chart`: Represents a Helm chart in a Kubernetes cluster. Here we are deploying the 'wireguard-pia' chart.

- `fetchOpts.repo`: This is the Helm chart repository URL where 'wireguard-pia' can be found. (Note: replace `"https://helm-repo-containing-wireguard-pia"` with the actual Helm repository URL.)

- `version`: Refers to the version of the Helm chart that you want to deploy. (Make sure to replace `"1.0.0"` with the version you need to install.)

- `kubeconfig`: An output variable that will display the cluster's kubeconfig in the Pulumi outputs, allowing us to access the Kubernetes cluster via kubectl or other Kubernetes tools.

To run this program:

1. Ensure you have Pulumi CLI installed and AWS credentials configured.
2. Save the above code into a file named `Pulumi.ts`.
3. Run `pulumi up` from the command line in the same directory as your `Pulumi.ts` file. This command will provision the resources as defined by the code.

Remember to replace the placeholder values with the actual values relevant to your requirement. The above code will create an AWS EKS cluster and deploy the 'wireguard-pia' Helm chart onto it.