1. Deploy the stunnel helm chart on Digital Ocean Kubernetes Service


    To deploy the stunnel Helm chart on a Digital Ocean Kubernetes Service, we need to complete two primary tasks:

    1. Provision a Kubernetes Cluster on DigitalOcean: We'll create a new Kubernetes cluster using DigitalOcean's managed Kubernetes service (DOKS).
    2. Deploy the stunnel Helm chart to the Cluster: After the cluster is up and running, we'll use Pulumi's Kubernetes provider to deploy the stunnel Helm chart.

    Below is a Pulumi program written in TypeScript that accomplishes both of these tasks.

    First, add the necessary Pulumi packages to your project by running these commands:

    pulumi new kubernetes-typescript # Start a new Pulumi Kubernetes project if you haven't already npm install @pulumi/pulumi # Pulumi's core library npm install @pulumi/digitalocean # Pulumi's DigitalOcean provider npm install @pulumi/kubernetes # Pulumi's Kubernetes provider

    Then, create a new TypeScript file (index.ts) and use the following program:

    import * as pulumi from "@pulumi/pulumi"; import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Step 1: Provision a DigitalOcean Kubernetes cluster. const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: digitalocean.Regions.NYC1, version: "latest", nodePool: { name: "worker-pool", size: digitalocean.DropletSlugs.DropletS2VCPU2GB, nodeCount: 2, // Specify the number of worker nodes }, }); // Step 2: Deploy the stunnel Helm chart to the cluster. // Once the cluster is up and running, configure Pulumi to use the newly created cluster as the Kubernetes provider. const kubeConfig = cluster.kubeConfigs[0].rawConfig; const provider = new kubernetes.Provider("do-k8s-provider", { kubeconfig: kubeConfig, }); // Use the Helm Chart resource to deploy stunnel. You will need to provide a valid chart name, repository, and any custom configurations required for stunnel. const stunnelChart = new kubernetes.helm.v3.Chart("stunnel-chart", { chart: "stunnel", version: "x.y.z", // Specify the chart version you intend to deploy repo: "stunnel-charts-repo", // Replace with the correct Helm repo containing stunnel, if it's not stable values: { // Provide configuration parameters specific to the stunnel Helm chart // This is heavily dependent on the requirements of the stunnel chart itself // and could involve setting up TLS secrets, configuring ports, etc. }, }, { provider: provider }); // Export the cluster's kubeconfig and the stunnel service endpoint if available. export const kubeconfig = kubeConfig; export const stunnelEndpoint = stunnelChart.getResourceProperty("v1/Service", "stunnel-service", "status").apply(status => status.loadBalancer.ingress[0]?.ip);


    1. We import three modules from Pulumi: basic utilities, the DigitalOcean provider, and the Kubernetes provider.
    2. We provision a DOKS cluster in the NYC1 region with a node pool of 2 instances of the s-2vcpu-2gb size.
    3. With the DigitalOcean cluster created, we then configure the Kubernetes provider to use the kubeconfig of the new cluster.
    4. Then, we instantiate a Helm chart resource for stunnel, specifying the chart name, version, repository, and any custom values.
    5. Lastly, we export two pieces of information: the kubeconfig of the provisioned Kubernetes cluster and the IP address of the stunnel service deployed by the Helm chart. The export keyword allows us to easily retrieve this information from the Pulumi stack outputs after deployment.

    Note: You will need to replace x.y.z and stunnel-charts-repo with the actual version and Helm chart repository that hosts stunnel. Also, tweak the values field with the appropriate values for the stunnel chart installation.

    Before running the Pulumi program, you should ensure your Pulumi CLI is installed and configured with the appropriate DigitalOcean access token. Then, you can execute pulumi up to deploy your infrastructure. Pulumi will print out the IP endpoint for stunnel after deploying the chart, which you can use to interact with your stunnel service.