Deploy the persistence-azure-monitor helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the `persistence-azure-monitor` Helm chart on an Amazon EKS (Elastic Kubernetes Service) cluster using Pulumi, we will take the following steps:

1. Create an EKS cluster using AWS resources.
2. Deploy the `persistence-azure-monitor` Helm chart to the newly created EKS cluster using the `kubernetes.helm.v3.Chart` Pulumi resource.

For creating an EKS cluster, Pulumi provides a high-level package called `@pulumi/eks`. We will use this package because it takes care of the underlying details involved in setting up an EKS cluster. Once the EKS cluster is up and running, the Pulumi Kubernetes provider allows us to deploy Helm charts into the Kubernetes cluster.

Below is a detailed program that includes these steps, written in TypeScript, which is a language supported by Pulumi for infrastructure as code. The program is structured in an imperative style for clarity, and I will include comments that explain each key part of the process.

First, make sure to install the necessary Pulumi packages by running:

```bash
npm install @pulumi/pulumi @pulumi/aws @pulumi/eks @pulumi/kubernetes
```

Now, here’s the TypeScript program to deploy the `persistence-azure-monitor` Helm chart on AWS EKS:

```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";

// Create an EKS cluster
const cluster = new eks.Cluster("my-eks-cluster", {
    instanceType: "t2.medium",
    desiredCapacity: 2,
    minSize: 1,
    maxSize: 3,
    providers: { kubernetes: k8sProvider }, // Use the k8sProvider for configuring Kubernetes resources
});

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

// Set up kubernetes provider to use the generated kubeconfig from the newly created EKS cluster.
const k8sProvider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Deploy the Helm Chart using the pulumi/kubernetes provider
const helmChart = new k8s.helm.v3.Chart("azure-monitor", {
    chart: "persistence-azure-monitor",
    version: "0.1.0", // replace with the exact chart version you want to deploy
    fetchOpts: {
        repo: "https://helm.example.com/", // replace with the actual Helm chart repository
    },
}, { provider: k8sProvider });

// Export the Helm chart status
export const helmChartStatus = helmChart.status;

```

In this program, we:

- Import the necessary Pulumi modules.
- Create an EKS cluster with a specified instance type and size parameters using the `@pulumi/eks` module.
- Export the kubeconfig of the EKS cluster, which allows kubectl or other Kubernetes tools to interact with the cluster.
- Set up a Kubernetes provider with the kubeconfig of our EKS cluster. This provider is then used to communicate with our EKS cluster.
- Deploy the `persistence-azure-monitor` Helm chart into the EKS cluster. We specify the chart name, version, and the repository from where to fetch the Helm chart. Make sure to replace the `version` and `repo` with the correct information for the Helm chart you wish to deploy.

To deploy the Pulumi program, navigate to the directory containing the program file and run the following commands:

```bash
pulumi stack init dev                         # Initializes a new Pulumi stack called "dev"
pulumi up                                     # Preview and deploy the changes
```

Pulumi will display the proposed changes and prompt you to proceed with the deployment. If successful, it will set up an EKS cluster and deploy the requested Helm chart to it.

Keep in mind that you'll need to have Pulumi installed and configured with AWS credentials on your local machine, and also provide the correct Helm chart repo and version for the `persistence-azure-monitor` chart.