Deploy the mysql-exporter helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the `mysql-exporter` Helm chart on AWS EKS using Pulumi, we need to:

1. Set up an Amazon EKS cluster.
2. Install the Helm chart onto the EKS cluster.

### Step 1: Setting up the EKS Cluster
We will use the `eks.Cluster` class from the `@pulumi/eks` package to create a new Amazon EKS cluster. This package provides higher-level abstractions to create and configure an EKS cluster.

### Step 2: Deploying the mysql-exporter Helm Chart
After the cluster is set up, we will use the `kubernetes.helm.v3.Chart` class from the `@pulumi/kubernetes` package to deploy the `mysql-exporter` Helm chart to the EKS cluster.

Let's get started with the Pulumi program in TypeScript:

```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-cluster", {});

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

// Deploy the mysql-exporter Helm chart
const chart = new k8s.helm.v3.Chart("mysql-exporter", {
    // Note that depending on the specific chart, you may need to provide the appropriate
    // repository and chart name. For illustrative purposes, I am assuming "mysql-exporter"
    // chart is available in the stable Helm repository.
    chart: "mysql-exporter",
    version: "1.0.0", // specify the version of the chart to deploy
    namespace: "monitoring", // specify the namespace where the chart will be installed
    fetchOpts: {
        // Define the repository where the chart is located
        repo: "https://charts.helm.sh/stable",
    },
    // Values from the default chart values can be overridden using a values object
    values: {
        // Custom values to configure mysql-exporter
    },
}, { provider: cluster.provider });

// Export the Helm chart status
export const chartStatus = chart.status;
```

In this program:

- We create a new EKS cluster using the `eks.Cluster` class. The minimal construction creates an EKS cluster with the default configurations, including default node groups and networking setup.
- The `kubeconfig` is exported, allowing you to interact with your cluster using `kubectl` or other Kubernetes tools.
- We create a new Helm chart deployment using the `Chart` class. The `mysql-exporter` Helm chart is specified along with version and namespace. The `fetchOpts` is where we specify the Helm repository; in this case, I've provided a placeholder URL where your Helm chart might reside.
- In the `values` object within the `Chart` class, you can override any default values provided by the Helm chart with custom configurations. For example, you might need to specify the MySQL service credentials or connection info for the `mysql-exporter` to function correctly.
- We also export the status of the Helm chart, which provides information about the deployed resources, using `chart.status`.

This Pulumi program sets up an EKS cluster and deploys the `mysql-exporter` Helm chart onto it. Remember to replace the chart-specific values and repository URL with the correct ones for your use case.

After writing this code, to deploy your infrastructure, run `pulumi up` in the directory where this code is saved.