1. Deploy the multicloud helm chart on Kubernetes


    Deploying a Helm chart on a Kubernetes cluster with Pulumi is a straightforward process that can be accomplished with the Chart resource from the Pulumi Kubernetes provider. This resource allows you to deploy Helm charts similarly to how you would use the helm CLI.

    Below is a TypeScript program that demonstrates how to deploy a Helm chart to a Kubernetes cluster managed by cloud providers like AWS, Azure, or Google Cloud. For simplicity, I'll show you how to deploy the Helm chart to a previously provisioned Kubernetes cluster. I will assume you have already set up the necessary cloud provider credentials and configured kubectl to communicate with your cluster.

    In this example, we'll use the Pulumi Kubernetes provider to deploy the Helm chart nginx from the stable repository. This Helm chart installs the nginx ingress controller. The ingress controller can serve as a reverse proxy and load balancer for your Kubernetes services.

    Here's how you can do it:

    import * as k8s from "@pulumi/kubernetes"; // Create a Kubernetes provider instance using the current context of `kubectl`. const provider = new k8s.Provider("k8s-provider", { // If you are targeting a specific kubeconfig context or cluster, specify that here // For example: // kubeconfig: "your-kubeconfig-file", // context: "your-kubeconfig-context", }); // Deploy the NGINX ingress controller using the Helm chart. const nginxIngressController = new k8s.helm.v3.Chart("nginx-ingress", { chart: "nginx-ingress", // Change to the version you want to use version: "1.41.3", // Optionally, specify the repository URL if it's not a chart from the 'stable' repository // repositoryOpts: { // repo: "https://charts.helm.sh/stable" // }, // You could override default values here similar to `helm install --set key=value` values: { // Some example overrides // controller: { // metrics: { // enabled: true, // }, // }, }, }, { provider }); // Export the public IP or Hostname of the ingress controller if needed export const ingressEndpoint = nginxIngressController.getResourceProperty( "v1/Service", "nginx-ingress-controller", "status" ).apply(status => status.loadBalancer.ingress[0].ip || status.loadBalancer.ingress[0].hostname);

    This program does the following:

    • Imports the required Pulumi Kubernetes module.
    • Creates a Kubernetes provider that uses the current context from your kubectl configuration. If you have multiple contexts or a specific kubeconfig file for your cluster, you should specify it in the provider configuration.
    • Deploys the nginx-ingress Helm chart to provision an ingress controller in your cluster. This is specified with the chart and version properties. If your chart is located in a custom Helm repository, you must provide the repositoryOpts with the repo URL.
    • Optionally override default chart values under the values object. This step is equivalent to using the --set flag with the helm CLI.
    • Exports the resultant ingress endpoint, either an IP or a hostname, to be used to access services through the ingress controller.

    Before running this Pulumi program, make sure your Pulumi CLI is installed, and you are logged in to a Pulumi backend to store your state (e.g., the Pulumi Service, a cloud bucket, or locally). Also, verify that your Kubernetes cluster is running and you are authenticated through kubectl.

    Remember, this Pulumi script is scoped to deploying a specific Helm chart on an existing Kubernetes cluster. If you want to create a Kubernetes cluster with Pulumi or configure other cloud resources, you can also do that with different Pulumi components and providers.