Deploy the dex-controller helm chart on AWS EKS

Question

Pulumi · Accepted Answer

To deploy the Dex controller Helm chart on an AWS EKS cluster using Pulumi, you first need to establish an EKS cluster, then deploy the Helm chart onto that cluster. Below is a breakdown of the steps involved, followed by a Pulumi TypeScript program to accomplish this.

Establish an EKS Cluster: We'll start by creating an Amazon EKS cluster using the aws.eks.Cluster resource. This will involve setting up the necessary IAM roles, VPC, and subnets that the EKS service needs to operate.
Install the Helm Chart: Once we have an EKS cluster, we will install the Dex controller using the kubernetes.helm.v3.Chart resource. We'll specify the chart name, and any set of values we need for our configuration.

Here's the Pulumi program in TypeScript that will perform both of these tasks:

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 the EKS Cluster
// Define the EKS cluster. This includes the configuration of the VPC, subnets, and the IAM roles.
const cluster = new eks.Cluster("my-eks-cluster", {
    vpcId: "<vpc-id>",   // Specify your VPC ID here
    subnetIds: ["<subnet-id-a>", "<subnet-id-b>"], // Specify your subnet IDs here
    instanceType: "t2.medium",
    desiredCapacity: 2,
    minSize: 1,
    maxSize: 3,
    storageClasses: "gp2", // Define storage classes, if needed
    deployDashboard: false // Kubernetes dashboard is deprecated
});

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

// Step 2: Deploy the dex-controller Helm chart onto the EKS cluster
// Create a Kubernetes provider instance that uses our EKS cluster from above.
const k8sProvider = new k8s.Provider("k8s-provider", { kubeconfig: cluster.kubeconfig });

// Deploy the dex-controller Helm chart
const dexChart = new k8s.helm.v3.Chart("dex-controller", {
    chart: "dex-controller",
    version: "0.0.1", // Use the correct chart version
    namespace: "kube-system", // Specify the namespace if needed
    // Values from the Helm chart's 'values.yaml', if you need to override any default configs
    values: {
        // ...
    },
}, { provider: k8sProvider });

// When the program is executed, Pulumi will call into the cloud provider to create, update, or delete resources.

To use this program:

Fill in the VPC and subnet details: Provide your AWS VPC and subnet identifiers that the EKS cluster will use.
Cluster sizing: You might need to adjust the instance type, and the min, max, and desired counts of nodes to match your use case or budget.
Chart version: Replace "0.0.1" with the actual version of the Dex controller chart you wish to deploy. You may also use "latest" if you want the latest version.
Configuration Values: provide the necessary configuration in the values field for dexChart as per your requirements. You can retrieve these details from the official chart or its repository.

Once your Pulumi program is set up, run pulumi up within the directory of your Pulumi program to create the EKS cluster and deploy the Helm chart.

For more information about the resources used in this program, you can visit the following documentation pages: