Deploy the persistentvolumeclaim helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy a PersistentVolumeClaim (PVC) through a Helm chart on an AWS Elastic Kubernetes Service (EKS) cluster using Pulumi, you will need to follow several steps:

1. Create an AWS EKS cluster, if you don't have one already.
2. Set up a Kubernetes provider pointing to your EKS cluster to manage Kubernetes resources.
3. Deploy the PVC using the Helm chart on your EKS cluster.

Below is a Pulumi program written in TypeScript that accomplishes these tasks. In this program, we will use the `@pulumi/eks` package to create a managed EKS cluster and the `@pulumi/kubernetes` package to deploy the Helm chart containing the PersistentVolumeClaim.

```typescript
import * as aws from "@pulumi/aws";
import * as awsx from "@pulumi/awsx";
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", {
    instanceType: "t2.medium", // Change to your desired instance type
    desiredCapacity: 2,        // Change to your desired node count
    minSize: 1,
    maxSize: 3,
});

// Step 2: Create a Kubernetes provider instance that uses the EKS cluster's kubeconfig.
const provider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Step 3: Deploy the PersistentVolumeClaim (PVC) through the Helm chart on your EKS cluster.
const pvcChart = new k8s.helm.v3.Chart("my-pvc", {
    chart: "persistentvolumeclaim",
    // Replace with the correct Helm repository URL providing the PVC chart
    // This assumes you have a Helm chart that defines a PVC or you can create one.
    repo: "my-helm-repo",
    // Values to pass to the Helm chart.
    // These should match the expected values for the PersistentVolumeClaim in the chart.
    values: {
        size: "10Gi",
        storageClassName: "gp2", // Ensure this matches your EKS storage class
        accessModes: [ "ReadWriteOnce" ],
        // add additional values as needed
    },
}, { provider: provider });

// (Optional) Export the kubeconfig to access the created cluster with `kubectl`
export const kubeconfig = cluster.kubeconfig;

// (Optional) Export the status of the deployed PVC
export const pvcStatus = pvcChart.getResourceProperty("v1/PersistentVolumeClaim", "my-pvc-persistentvolumeclaim", "status");
```

Before you begin, you will need to have Pulumi and AWS CLI installed and configured:

- Install Pulumi CLI: Follow the [installation guide](https://www.pulumi.com/docs/get-started/install/).
- Install AWS CLI: Follow the [official AWS documentation](https://aws.amazon.com/cli/).
- Configure AWS CLI with your credentials: Run `aws configure` and input your AWS Access Key ID, Secret Access Key, and default region.

To run this Pulumi program:

1. Create a new directory for your Pulumi project.
2. Run `pulumi new typescript` inside the new directory and provide your project details.
3. Replace the contents of `index.ts` with the code provided above.
4. Install required NPM packages by running `npm install @pulumi/aws @pulumi/awsx @pulumi/eks @pulumi/kubernetes`.
5. (Optional) If you need to customize the Helm chart for PVC, ensure you have the chart available or reference the chart from your Helm repository.
6. Run `pulumi up` to preview and deploy resources.

Please note that you will need a valid PersistentVolumeClaim Helm chart, and you will need to adjust the `chart` and `repo` details in the `pvcChart` variable to match the Helm chart you are deploying. You must also ensure that your EKS cluster has a storage class that matches the `storageClassName` specified in your PVC.