Deploy the elasticsearch-exporter helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the `elasticsearch-exporter` Helm chart on an AWS Elastic Kubernetes Service (EKS) cluster, you will first need to set up an EKS cluster. Once the cluster is running, you can then install the Helm chart into your cluster.

Below is a Pulumi program that first creates a new EKS cluster and then deploys the `elasticsearch-exporter` Helm chart onto it.

I'll guide you through the process with detailed comments and explanations.

### Step 1: Setting up an EKS Cluster

We will use the `eks` Pulumi package to create a managed Kubernetes cluster. The `eks.Cluster` class provides a high-level interface that simplifies EKS cluster creation.

### Step 2: Deploying the `elasticsearch-exporter` Helm Chart

After we have our EKS cluster set up, we'll deploy the `elasticsearch-exporter` Helm chart using the `kubernetes.helm.v3.Chart` class from the `kubernetes` Pulumi package. The `Chart` resource allows us to deploy packaged applications to a Kubernetes cluster.

Here is the TypeScript Pulumi 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 a new EKS cluster
const cluster = new eks.Cluster('my-cluster', {
    // We specify the desired number of cluster nodes here
    desiredCapacity: 2,
    minSize: 1,
    maxSize: 2,
    // This will use the default VPC and subnets
    vpcId: aws.config.vpcId,
    publicSubnetIds: aws.config.publicSubnetIds,
    // Define the instance type for the nodes
    instanceType: 't2.medium',
    // Define the Kubernetes version
    version: '1.21'
});

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

// Step 2: Deploy the `elasticsearch-exporter` Helm chart
const elasticsearchExporterChart = new k8s.helm.v3.Chart('elasticsearch-exporter', {
    chart: 'elasticsearch-exporter',
    // You need to specify the repository where the chart is located
    repo: 'https://prometheus-community.github.io/helm-charts', 
    namespace: 'monitoring',
    // Values allows you to provide a custom values file for your chart
    values: {
        // Define custom values needed for the elasticsearch-exporter Helm chart. 
        // You would replace these with the actual configuration for your Elasticsearch setup.
        es: {
            uri: 'http://your-elasticsearch-cluster:9200'
        }
    },
    // Ensure that the Helm chart is installed only after the EKS cluster is up and running
    transformations: [ (resource) => {
        if (resource.kind === 'Deployment') {
            resource.metadata.namespace = 'monitoring';
        }
    }]
}, { provider: cluster.provider });

// Since the program involves creating infrastructure, it would need to be executed with the Pulumi CLI.
// You must have your AWS credentials and Pulumi CLI setup to run this program successfully.
```

When you run this program with the Pulumi CLI, it performs the following actions:

1. **EKS Cluster Creation**: An EKS cluster with the specified number of nodes, instance type, and Kubernetes version is created.
2. **Helm Chart Deployment**: The `elasticsearch-exporter` Helm chart is then deployed onto the cluster into the `monitoring` namespace.
3. **Export Kubeconfig**: The kubeconfig needed to connect and interact with your Kubernetes cluster is exported, which you can use with `kubectl`.

Please ensure you've got Pulumi CLI set up with the required AWS credentials to allow Pulumi to create resources on your behalf and the Helm CLI installed so that Pulumi can fetch Helm charts.

This program is meant to run "out of the box" within a properly configured Pulumi environment. If you encounter any errors during the process, you may need to review your cloud provider credentials, Helm chart repository availability, or chart values for `elasticsearch-exporter`.

Deploy the elasticsearch-exporter helm chart on AWS EKS

Step 1: Setting up an EKS Cluster

Step 2: Deploying the elasticsearch-exporter Helm Chart

Step 2: Deploying the `elasticsearch-exporter` Helm Chart