Deploy the prometheus-haproxy-exporter helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the `prometheus-haproxy-exporter` Helm chart on an AWS EKS cluster using Pulumi, you'll need to follow these steps:

1. Ensure you have an existing AWS EKS cluster setup. For this example, I'll assume that we have an EKS cluster available. If you do not have one, you can create one using the `aws.eks.Cluster` resource.
   
2. Configure Pulumi to use the `kubernetes` provider so that we can deploy Helm charts on the Kubernetes cluster.

3. Use the `kubernetes.helm.v3.Chart` resource to deploy the `prometheus-haproxy-exporter` chart from Helm's stable repository.

Below is the TypeScript program that performs these steps. This code assumes that you have already configured your AWS and Kubernetes credentials for Pulumi.

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

// Create an EKS cluster.
const cluster = new eks.Cluster('my-cluster', {
    // Provide the necessary cluster configuration
});

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

// Set up a Kubernetes provider using the kubeconfig obtained from the EKS cluster.
const provider = new k8s.Provider('eks-provider', {
    kubeconfig: kubeconfig,
});

// Deploy the prometheus-haproxy-exporter helm chart onto the EKS cluster.
const prometheusHaproxyExporter = new k8s.helm.v3.Chart('prometheus-haproxy-exporter', {
    chart: 'prometheus-haproxy-exporter',
    version: '1.1.1', // Replace with desired chart version
    fetchOpts: {
        repo: 'https://prometheus-community.github.io/helm-charts',
    },
}, { provider: provider });

// Export the status of the Helm deployment.
export const helmDeploymentStatus = prometheusHaproxyExporter.status;
```

In this program:

- We declare an EKS cluster, the code snippet provided does not include the complete setup for the EKS cluster. This is just a placeholder, and the actual cluster configurations will depend on your specific requirements.

- We export the cluster's `kubeconfig` to facilitate interactions with the cluster using `kubectl` and the Pulumi Kubernetes provider.

- We instantiate a `kubernetes.Provider` which is configured using the `kubeconfig` of the EKS cluster. This allows Pulumi to deploy resources onto the EKS cluster.

- The `kubernetes.helm.v3.Chart` resource is used to deploy the `prometheus-haproxy-exporter` Helm chart. We specify the `chart` name, the `version`, and the Helm repository where the chart is located.

- An optional `provider` argument is passed to the Helm chart resource to ensure that it uses the Kubernetes provider configured with our EKS cluster's `kubeconfig`.

- We export the status of the Helm deployment which can be used to determine if the deployment was successful.

To run this Pulumi program:

1. Save the code to a file with a `.ts` extension, for example, `deploy-prometheus-haproxy-exporter.ts`.

2. Run `pulumi up` in the command line, making sure you're in the directory where the file is saved. Pulumi will execute the code to deploy the Helm chart on your EKS cluster.

Please ensure that your AWS and Kubernetes credentials are set correctly in your environment or Pulumi configuration, so the deployment can proceed without authentication issues.