Deploy the vulnerable-log4j helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the `vulnerable-log4j` Helm chart on Amazon EKS (Elastic Kubernetes Service) using Pulumi, you'll need to set up an EKS cluster and then deploy the Helm chart to that cluster. Below is a step-by-step guide on how to do this using Pulumi with TypeScript.

### Step 1: Set up the EKS cluster

First, you need to create an EKS cluster. To do this, you'll define an EKS cluster resource using Pulumi's EKS package. This package provides a high-level abstraction that simplifies setting up an EKS cluster.

### Step 2: Deploy the Helm chart

After the cluster is set up, you can use Pulumi's Kubernetes provider to deploy the `vulnerable-log4j` Helm chart to the EKS cluster.

Here's a program that sets up an EKS cluster and deploys the chart:

```typescript
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", {
  // Specify the version of Kubernetes.
  version: "1.21",
  // Configure the desired size and instance type of the worker nodes.
  nodeGroupOptions: {
    minSize: 2,
    maxSize: 4,
    instanceType: "t3.medium",
  },
});

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

// Step 2: Deploy the Helm chart to the EKS cluster.
const helmChart = new k8s.helm.v3.Chart("vulnerable-log4j", {
  // Use the Chart resource to deploy your helm chart.
  // Specify the repository and chart details.
  chart: "vulnerable-log4j",
  version: "1.0.0", // Replace with the actual chart version
  fetchOpts: {
    repo: "http://path-to-your-helm-repo/", // Replace with the actual Helm repo URL
  },
}, { provider: cluster.provider });

// Register stack outputs.
export const clusterName = cluster.core.cluster.name;
export const kubeconfigOutput = cluster.kubeconfig;
```

### Explanation

- We import two packages: `@pulumi/eks` for creating an EKS cluster and `@pulumi/kubernetes` for interacting with Kubernetes resources.
- We create an EKS cluster with the desired Kubernetes version and specify the desired node group options like minSize, maxSize, and instance type.
- We export the `kubeconfig` of the EKS cluster, which can be used to interact with the cluster using the `kubectl` CLI.
- We create a Helm chart resource to deploy the `vulnerable-log4j` Helm chart on our EKS cluster.
- We specify the chart name and version, ensure this matches the details from the Helm repository hosting your chart.
- We provide the Helm repo URL where the chart can be found.
- The `provider` option ensures that the Helm chart is deployed to the new EKS cluster.
- We register stack outputs for the cluster name and kubeconfig, which will be displayed after `pulumi up` is executed.

You can customize the provided code with the actual values and configurations based on your requirements. Deploying the Helm chart will create the necessary Kubernetes resources, such as Deployments and Services, as specified in the chart.

After deploying, you can use `kubectl` with the exported `kubeconfig` to interact with your EKS cluster and check the status of the Helm release.