Deploy the lighthouse-validator helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy a `lighthouse-validator` Helm chart on an AWS EKS cluster using Pulumi, you will need the following resources:

1. **An EKS Cluster**: This is where your services will run. We'll use the `awsx.eks.Cluster` resource because it provides higher-level abstractions to set up the cluster.
2. **Helm Chart**: We will use the `kubernetes.helm.v3.Chart` from Pulumi's Kubernetes provider to deploy the `lighthouse-validator` helm chart into our EKS cluster.

Before deploying the `lighthouse-validator` chart, you must ensure that you have configured Pulumi with the necessary AWS credentials and have installed the AWS CLI, kubectl, and Helm tools locally.

Here's the code, with detailed explanations in comments:

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

// Create an EKS cluster with the default configuration.
const cluster = new eks.Cluster("my-cluster", {});

// Once the EKS cluster is up and running, we'll need the Kubernetes provider to interact with it.
// The `providers` field in the Helm chart below specifies that we want to deploy into the EKS cluster.
const k8sProvider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Deploy the lighthouse-validator Helm chart into your EKS cluster.
// We use the Kubernetes package provided by Pulumi to interact with the Helm package manager.
const lighthouseValidatorChart = new k8s.helm.v3.Chart("lighthouse-validator", {
    // You will need to provide the correct repository and chart name for the lighthouse-validator Helm chart.
    // If the chart is not hosted in a public Helm repository, you'll need to provide a `path` property with a local path.
    chart: "lighthouse-validator",
    version: "x.y.z", // Use the desired version here
    // Additional chart values can be provided like below.
    values: {
        // Insert your specific configuration for lighthouse-validator here
    },
}, { providers: { kubernetes: k8sProvider } });

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

// Now you'll be able to use this `kubeconfig` to interact with your Kubernetes cluster using `kubectl`.
```

Let's break down the steps and explain what is happening:

1. We create an EKS cluster with a simple command that abstracts away all the details of cluster creation. The `awsx.eks.Cluster` resource helps here.

2. We establish the provider. The Kubernetes provider uses the kubeconfig from the created EKS cluster to interact with it.

3. The `kubernetes.helm.v3.Chart` resource is responsible for deploying Helm charts to the cluster. You need to specify the chart and version you want to deploy. In our case, it's "lighthouse-validator," but you'll need to replace `x.y.z` with the actual version of the chart you want to deploy.

4. The `export` statement is used to output the kubeconfig of the created EKS cluster. This allows you to use tools like `kubectl` outside of Pulumi to manage your Kubernetes resources.

Be sure to use the correct Helm chart name and repository for `lighthouse-validator`, as this will depend on the specifics of your Helm chart. If it is a custom or private chart, you will need to adjust the `chart`, `version`, and possible `values` configuration accordingly.

Remember to replace the placeholder values like `x.y.z` with actual values according to the documentation of the `lighthouse-validator` Helm chart you are deploying. The `values` object allows you to customize the Helm chart's behavior by specifying the appropriate configuration options as defined by the chart maintainer.

Lastly, to run this Pulumi program, you would need to execute `pulumi up` in your terminal, which will prompt you to confirm the deployment after showing you a preview of the resources that will be created. Upon confirmation, Pulumi will provision the EKS cluster and deploy the Helm chart.