1. Deploy the kubelet-summary-exporter helm chart on Kubernetes


    To deploy the kubelet-summary-exporter Helm chart on Kubernetes using Pulumi, you'll need to write a Pulumi program that leverages the kubernetes.helm.v3.Chart resource. This resource manages Helm chart deployments within a Kubernetes cluster.

    Before we dive into the Pulumi program, here's a brief rundown on the key elements and what each piece does:

    • Helm Chart: Helm packages, known as charts, contain all necessary resources and configuration needed to deploy an application or service on a Kubernetes cluster.

    • Pulumi Kubernetes Provider: This is the Pulumi package that lets you create, manage, and interact with Kubernetes resources in a cluster.

    • Chart Resource: A Pulumi resource provided by the Kubernetes provider to deploy a Helm chart on a Kubernetes cluster.

    Now, let's look at the Pulumi program:

    import * as pulumi from "@pulumi/pulumi"; import * as k8s from "@pulumi/kubernetes"; // Define the settings for the kubelet-summary-exporter Helm chart. const kubeletSummaryExporterChart = new k8s.helm.v3.Chart("kubelet-summary-exporter", { chart: "kubelet-summary-exporter", // Specify which repository the chart should be fetched from. // If it’s an official chart, you may omit the `repo` key. // If the chart is from a custom repo, add the `repo` key and its URL. // For instance, if it's hosted on a personal helm repo on GitHub: repo: "https://<your-github-user>.github.io/helm-charts", namespace: "default", // Specify the namespace where you want to deploy. values: { // Here you specify the values to override the chart's default settings. // These values will depend on the specific chart being deployed. // For example, if you need to set a resource limit on pod memory usage: resources: { limits: { memory: "200Mi", }, }, // More settings... }, }); // Export the base URL of the kubelet-summary-exporter service, // assuming it creates a Service with the same name as the chart. export const serviceUrl = pulumi.interpolate`http://${kubeletSummaryExporterChart.getResourceProperty("v1/Service", "kubelet-summary-exporter", "status").apply(status => status.loadBalancer.ingress[0].hostname || status.loadBalancer.ingress[0].ip)}`;

    In the provided code, replace https://<your-github-user>.github.io/helm-charts with the actual URL of the Helm repository where the kubelet-summary-exporter chart is hosted. If it’s a chart from the Helm stable, the repo field can be omitted as Pulumi knows where to find these charts.

    Keep in mind that the values provided in the code block are hypothetical. You would adjust them according to the specific requirements of the kubelet-summary-exporter chart and your cluster needs.

    To run this Pulumi program:

    1. Save the TypeScript code to a file, e.g., index.ts.
    2. Initialize a new Pulumi project using pulumi new kubernetes-typescript if you haven't already done so.
    3. Replace the contents of index.ts with the code above.
    4. Run pulumi up to preview and deploy the changes.

    After running pulumi up, Pulumi will show you a preview of the operations to be performed and ask for confirmation before proceeding with the actual deployment. If all goes well, the kubelet-summary-exporter will be deployed to your Kubernetes cluster, and the program will export the base URL of the service if available.