1. Deploy the springbootapp helm chart on AWS EKS


    To deploy a Spring Boot application using a Helm chart on AWS Elastic Kubernetes Service (EKS), you'll need to set up the following:

    1. An EKS Cluster: This will be the Kubernetes cluster on which your application will run.
    2. Helm Chart: Helm charts help define, install, and upgrade even the most complex Kubernetes application.
    3. Deployment Mechanism: Use Pulumi to script the deployment process.

    In this program, we will define the EKS cluster using the eks.Cluster resource. We will then deploy the springbootapp Helm chart to this cluster.

    Below is a comprehensive program written in TypeScript to accomplish this task. The program does the following:

    • Sets up an EKS cluster: This step involves creating a new EKS cluster with the required configurations.
    • Deploys a Helm chart to the EKS cluster: After setting up the cluster, the program deploys a specified Helm chart to it. For this example, we need the springbootapp Helm chart. We'll use a generic chart name and repository URL as placeholders. You would replace these with the actual chart details for your Spring Boot application.

    Here's the entire program, with detailed comments explaining each step:

    import * as pulumi from '@pulumi/pulumi'; import * as awsx from '@pulumi/awsx'; import * as eks from '@pulumi/eks'; import * as k8s from '@pulumi/kubernetes'; // Create a VPC for our cluster const vpc = new awsx.ec2.Vpc('my-vpc', { numberOfAvailabilityZones: 2 }); // Create an EKS cluster with the default configuration. const cluster = new eks.Cluster('my-cluster', { vpcId: vpc.id, subnetIds: vpc.publicSubnetIds, instanceType: 't2.medium', desiredCapacity: 2, minSize: 1, maxSize: 2, storageClasses: 'gp2', // Set the default storage class for the cluster. deployDashboard: false, // Kubernetes dashboard is not recommended; thus, we disable it. }); // Define the Spring Boot app Helm chart. const chart = new k8s.helm.v3.Chart('springbootapp-chart', { chart: 'springbootapp', version: '1.0.0', // replace with the version you wish to deploy fetchOpts: { repo: 'http://charts.mycompany.com/', // replace with your chart's repository }, }, { provider: cluster.provider }); // Export the cluster's kubeconfig. export const kubeconfig = cluster.kubeconfig; // Export the URL to access the Spring Boot application if it creates an external endpoint. export const appUrl = chart.getResourceProperty('v1/Service', 'springbootapp', 'status').apply(status => status.loadBalancer.ingress[0].hostname || status.loadBalancer.ingress[0].ip);

    How to Run This Program

    To run this Pulumi program, you'll need to:

    1. Install Pulumi from Pulumi's website.
    2. Configure AWS credentials on your machine so that Pulumi can manage resources on your behalf. You can set them up by following instructions found in AWS's documentation, linked in your Pulumi setup.
    3. Create a new directory on your local machine, navigate to it, and use pulumi new typescript to create a new TypeScript Pulumi project.
    4. Replace the index.ts file content with the program code provided above.
    5. Run npm install to install the necessary dependencies.
    6. Replace the placeholders for springbootapp with the actual Helm chart name and repository URL of your Spring Boot application.
    7. Run pulumi up to create the resources and deploy your application.

    The program uses the @pulumi/eks package to create the EKS cluster, which is a higher-level package that simplifies creating and managing the EKS cluster. For the Helm chart deployment, it uses the @pulumi/kubernetes library to create and maintain Kubernetes resources, including Helm charts.

    After you've run pulumi up, the command will output the kubeconfig needed to connect to your cluster with kubectl and the URL of the Spring Boot application once it's deployed and an external IP or hostname is provisioned.