1. Deploy the springboot helm chart on AWS EKS


    To deploy a Spring Boot application using a Helm chart on an AWS Elastic Kubernetes Service (EKS) cluster, we need to perform several steps:

    1. Create an EKS cluster: This is the Kubernetes cluster managed by AWS where our application will run.
    2. Deploy the Helm chart: Helm is a package manager for Kubernetes, and it is used to deploy pre-packaged applications called Helm charts. We'll assume that there's a pre-existing Helm chart for the Spring Boot application.

    Below is a Pulumi program in TypeScript that accomplishes these tasks. The program uses the @pulumi/aws and @pulumi/awsx packages to create an EKS cluster and the @pulumi/kubernetes package to deploy the Helm chart.

    Before diving into the code, ensure that you have Pulumi installed and configured for use with AWS, and that you have a Pulumi account to manage your state. More information can be found in the Pulumi AWS Setup Guide.

    Now, here's a Pulumi TypeScript program that creates an EKS cluster and deploys a Spring Boot application using a Helm chart:

    import * as eks from "@pulumi/eks"; import * as k8s from "@pulumi/kubernetes"; // Create an EKS cluster. const cluster = new eks.Cluster("my-cluster", { instanceType: "t2.medium", desiredCapacity: 2, minSize: 1, maxSize: 2, }); // Export the cluster's kubeconfig. export const kubeconfig = cluster.kubeconfig; // Deploy the Spring Boot helm chart to the EKS cluster. // Replace `chart-name` and `repository-url` with the real name and URL for your Spring Boot helm chart. const springBootChart = new k8s.helm.v3.Chart("springboot-chart", { chart: "chart-name", version: "chart-version", // Optional: specify the chart version. fetchOpts: { repo: "repository-url", }, }, { provider: cluster.provider }); // Export the Spring Boot service endpoint to access the deployed application. // Replace `serviceName` with the actual name of the service defined in the Helm chart. export const serviceEndpoint = cluster.getKubernetesService("serviceName").status.loadBalancer.ingress[0].hostname;

    In the code above:

    • We import the required Pulumi packages.
    • We create an EKS cluster using the eks.Cluster class.
    • We construct a kubeconfig export that allows us to interact with the cluster using kubectl.
    • We then define a k8s.helm.v3.Chart resource for the Spring Boot application, specifying the chart name and repository.
    • Optionally, we've included a version property in the Chart resource. This should be replaced with the specific chart version you want to deploy.
    • We export a serviceEndpoint, which assumes your Helm chart creates a Service with a LoadBalancer. Replace serviceName with the actual name of the service to get the endpoint URL.

    After you have defined the above program in a file named index.ts, run pulumi up in the command line to preview and deploy the resources.

    Note: Ensure you replace chart-name, repository-url, and serviceName with the actual values for the Spring Boot helm chart you are using. If your chart doesn't include a LoadBalancer service, you may need to use a different method to export the application's endpoint.