Deploy the linkerd helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the Linkerd helm chart on AWS EKS using Pulumi, you need to complete several steps:

1. **Create an AWS EKS cluster**: You need a Kubernetes cluster where Linkerd will be deployed. You can use Pulumi's EKS package to easily create and configure an EKS cluster.

2. **Deploy Linkerd using Helm**: After the EKS cluster is up and running, you can use Pulumi's Helm package to deploy the Linkerd helm chart to the cluster.

Below is a program that demonstrates these steps:

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

// Create an EKS cluster.
const cluster = new eks.Cluster('my-cluster', {
    // Configure the cluster as needed. This is a basic configuration.
    instanceType: 't2.medium',
    desiredCapacity: 2,
    minSize: 1,
    maxSize: 3,
});

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

// Create an instance of the Kubernetes Provider pointing to the EKS cluster.
const k8sProvider = new k8s.Provider('k8s-provider', {
    kubeconfig: cluster.kubeconfig,
});

// Deploy the Linkerd helm chart to the EKS cluster.
const linkerdChart = new k8s.helm.v3.Chart('linkerd', {
    chart: 'linkerd2',
    version: '2.10.2', // Specify the Linkerd chart version you want to deploy.
    fetchOpts: {
        repo: 'https://helm.linkerd.io/stable',
    },
}, { provider: k8sProvider });

// Export the Linkerd web dashboard endpoint.
export const linkerdDashboard = cluster.getKubernetesDashboardUrl();
```

### Explanation:

Here's a breakdown of what the program is doing:

- It initializes a new EKS cluster using `@pulumi/eks`. Here I've kept the instance types and scaling options minimal, but these should be adapted based on actual use-case requirements.

- `kubeconfig` is exported, which allows `kubectl` and other tools to interact with the cluster.

- A Kubernetes provider is set up that uses the kubeconfig of the just created EKS cluster, ensuring that subsequent K8s resources are deployed into it.

- The Linkerd helm chart is deployed into the cluster by creating a `k8s.helm.v3.Chart` resource.

- Finally, the Linkerd dashboard URL is outputted for accessing the Linkerd dashboard.

You'd have to run `pulumi up` to execute this code, which will provision the resources on AWS and deploy Linkerd. Ensure your Pulumi and AWS CLI configurations are set up correctly.

Please note that you must replace the chart version with the desired version of Linkerd you wish to deploy.