Deploy the ocspd helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the `ocspd` Helm chart on AWS EKS, we will go through the process step-by-step. First, we'll create an EKS cluster, and then we will proceed to deploy the `ocspd` Helm chart on it.

### Step 1: Create an AWS EKS Cluster

To start with, we need to create an Amazon EKS cluster, which is a managed Kubernetes service that simplifies the process of running Kubernetes on AWS without requiring you to install, operate, and maintain your own Kubernetes control plane or worker nodes.

To create the EKS cluster, we'll utilize the `eks.Cluster` resource from Pulumi. An `eks.Cluster` encapsulates the provisioning of the EKS cluster and its worker nodes using AWS CloudFormation.

[Learn more about Pulumi EKS Cluster](https://www.pulumi.com/docs/reference/pkg/eks/cluster/)

### Step 2: Deploy Helm Chart

After the cluster is set up, we can deploy the `ocspd` Helm chart. Helm is a package manager for Kubernetes, which uses packages called Helm Charts - collections of pre-configured Kubernetes resources. The `kubernetes.helm.v3.Chart` class allows us to deploy such Helm charts into our Kubernetes cluster.

[Learn more about Pulumi Kubernetes Helm Chart](https://www.pulumi.com/docs/reference/pkg/kubernetes/helm/v3/chart/)

Now, let's start writing the Pulumi TypeScript program:

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

// Step 1: Create an EKS cluster
const cluster = new eks.Cluster("my-eks-cluster", {
    // Cluster configuration details
    instanceType: "t2.medium",
    desiredCapacity: 2,
    minSize: 1,
    maxSize: 2,
    storageClasses: "gp2", // This denotes the general purpose SSD storage class
    deployDashboard: false, // Do not deploy the Kubernetes dashboard
});

// Step 2: Deploy Helm chart
const ocspdChart = new k8s.helm.v3.Chart("ocspd-chart", {
    chart: "ocspd",
    version: "A specific chart version", // Replace with a specific chart version
    namespace: "default", // Specify the Kubernetes namespace
    fetchOpts: {
        repo: "https://charts.helm.sh/stable", // Replace with the correct Helm repo URL for ocspd
    },
}, { provider: cluster.provider });

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

In the above program:

- We create an EKS cluster named `my-eks-cluster`.
- We specify the desired configuration for our cluster, such as the instance type and the number of desired nodes.
- The storage class utilized is `gp2`, which is a general purpose SSD storage class provided by AWS.
- We deploy the `ocspd` Helm chart into the `default` namespace. Note: You'll need to replace `"A specific chart version"` with the version number of the Helm chart you want to use, as well as swap out the `repo` URL with the correct repository where the `ocspd` chart is hosted.
- Lastly, the program exports the cluster's kubeconfig, which allows you to interact with your cluster using the `kubectl` command-line tool.

To run and manage this code, you would need the Pulumi CLI, with AWS and Kubernetes configured on your local machine. Save this code in a TypeScript file, and run `pulumi up` to provision the resources. After your resources are provisioned, you can use the exported kubeconfig to interact with your EKS cluster.