Deploy the prow helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the Prow Helm chart on AWS EKS, you will need to follow these steps using Pulumi:

1. **Set up an EKS cluster**: You will first create an EKS cluster where your applications will run. EKS is a managed service that makes it easy to run Kubernetes on AWS without needing to install and operate your own Kubernetes clusters.

2. **Deploy the Prow Helm chart**: Once your EKS cluster is set up, you will use Pulumi's Helm chart resource to deploy Prow on that cluster. Prow is a Kubernetes-based CI/CD system that provides rich GitHub automation.

Here's a Pulumi program written in TypeScript that does exactly this. The program uses the `@pulumi/eks` module to create an EKS cluster and the `@pulumi/kubernetes` module to deploy the Prow Helm chart to said cluster. Make sure you have [configured](https://www.pulumi.com/docs/intro/cloud-providers/aws/setup/) the AWS provider and that you have [Pulumi installed](https://www.pulumi.com/docs/get-started/aws/begin/) in your environment before running this program.

```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");

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

// The version here is the version of Prow you want to install; make sure it is compatible with your EKS cluster version.
const prowVersion = "0.1"; // specify the version of Prow chart you want to deploy

// Now that we have our EKS cluster configured, we'll deploy Prow into it.
const prowChart = new k8s.helm.v3.Chart("prow", {
    chart: "prow", 
    version: prowVersion, 
    fetchOpts:{
        repo: "https://charts.k8s.io", // specify the Helm repo where the Prow chart can be found
    },
}, { provider: cluster.provider }); // specify that we're deploying to our new EKS cluster.

// Export the URL for the Prow dashboard, which can be used to view the status of Prow jobs.
export const prowDashboardUrl = pulumi.interpolate `http://${prowChart.getResourceProperty("v1/Service", "prow", "status").apply(status => status.loadBalancer.ingress[0].hostname)}`;

```

In this Pulumi program:

- We initiate the creation of an EKS cluster named "my-cluster".
- We export the kubeconfig of the cluster which can be used by `kubectl` and other tools to communicate with the Kubernetes cluster.
- We deploy the Prow Helm chart to our EKS cluster using the `@pulumi/kubernetes` Helm chart resource. The `repo` for the Prow chart is specified, as well as the version. Please make sure this version is compatible with your specific Prow and EKS setup.
- We're assuming that the Helm chart creates a service of type LoadBalancer to expose the Prow dashboard. We extract the URL of the LoadBalancer service and export it.

You can run this Pulumi program using the Pulumi CLI commands `pulumi up` to create the resources and `pulumi destroy` to tear them down when you're finished. To see the detailed output such as the EKS kubeconfig and the Prow dashboard URL, use `pulumi stack output`.