Deploy the couchbase-monitor-stack helm chart on AWS EKS

Question

Pulumi · Accepted Answer

In order to deploy the Couchbase monitoring stack on AWS EKS using Pulumi, you will first need to set up an EKS cluster. As part of this process, you'll create a VPC, subnets, and an EKS cluster, then you'll use the Helm chart to deploy the Couchbase monitoring stack to the cluster.

Here is the complete program that sets up an AWS EKS cluster and deploys the Couchbase monitoring stack using the Helm chart. This includes comments within the code to guide you through the process.

```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 with the default settings
// This will create the necessary VPC and IAM role for the cluster
const cluster = new eks.Cluster("my-cluster", {});

// Once the cluster is created, we define a Kubernetes Provider instance
// that uses the kubeconfig from the generated EKS cluster.
const k8sProvider = new k8s.Provider("k8s-provider", {
  kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Now we will deploy the Couchbase monitoring stack Helm chart on the EKS cluster.
// Note that you need to specify the correct `chart` and `version`.
const couchbaseMonitoringStack = new k8s.helm.v3.Chart("couchbase-monitor-stack", {
  chart: "couchbase-monitoring",
  version: "YOUR_CHART_VERSION", // replace with the actual chart version
  fetchOpts: {
    repo: "https://YOUR_HELM_CHART_REPO", // replace with the actual Helm chart repository
  },
}, { provider: k8sProvider });

// Export the Cluster's kubeconfig and the service name of the Couchbase monitoring stack
export const kubeconfig = cluster.kubeconfig;
export const couchbaseMonitoringServiceName = couchbaseMonitoringStack.getResourceProperty("v1/Service", "couchbase-monitor-stack", "metadata").apply(metadata => metadata.name);
```

### Understanding the Program

Let's break down the program step by step:

1. **EKS Cluster Creation**: We use the `eks.Cluster` class to create an EKS cluster with default settings. This step automatically sets up the VPC, subnets, and IAM roles needed for the cluster.

2. **Kubernetes Provider Configuration**: A Pulumi Kubernetes Provider is created to communicate with the EKS cluster, using the generated kubeconfig.

3. **Deploying the Helm Chart**: We instantiate a `k8s.helm.v3.Chart` to deploy the Couchbase monitoring stack. You will need to provide the Helm chart version and the repository URL where the Helm chart is located.

4. **Exports**: Lastly, we export the kubeconfig so you can interact with your cluster using `kubectl` and other tools outside of Pulumi. We also export the service name of the Couchbase monitoring so you can easily find it within your Kubernetes cluster.

When you run this program with Pulumi, it will perform all the steps necessary to stand up an EKS cluster and deploy the Couchbase monitoring stack on it.

Please replace `YOUR_CHART_VERSION` and `https://YOUR_HELM_CHART_REPO` with the appropriate chart version and Helm chart repository, which you will receive from the maintainers of the Couchbase monitoring stack or find in the chart's documentation.

Remember to install the necessary Pulumi plugins and set up the AWS credential beforehand. For AWS credentials, AWS CLI should be configured which Pulumi will use.

This code provided does not include setting up dependencies like VPC and IAM roles; it assumes default roles and a VPC created by Pulumi will be sufficient for your needs. If your organization requires custom networking or security configurations, additional setup will be required.