1. Deploy the open-vpn helm chart on Digital Ocean Kubernetes Service


    To deploy the OpenVPN Helm chart on the Digital Ocean Kubernetes Service using Pulumi, you would go through multiple steps. Firstly, you will need to create a Kubernetes cluster in DigitalOcean, and then you will use the Helm chart to deploy OpenVPN onto this cluster.

    In Pulumi, you manage cloud resources with programs written in familiar languages. Below is an example of a TypeScript program that accomplishes the task:

    1. Create a Kubernetes cluster: First, you create a new Kubernetes cluster on DigitalOcean. You'll define the node pool specs including size and number of nodes.

    2. Deploy OpenVPN using a Helm chart: Once the cluster is available, you will deploy the OpenVPN chart into the Kubernetes cluster using Pulumi's Helm support.

    Make sure you have Pulumi and the Pulumi CLI installed and configured for use with DigitalOcean.

    Here's a Pulumi program written in TypeScript that deploys an OpenVPN helm chart to a newly provisioned DigitalOcean Kubernetes Service:

    import * as pulumi from "@pulumi/pulumi"; import * as digitalocean from "@pulumi/digitalocean"; import * as k8s from "@pulumi/kubernetes"; // Create a DigitalOcean Kubernetes cluster with a specified node size and number of nodes in the pool const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: digitalocean.Regions.NYC1, version: "latest", nodePool: { name: "default", size: "s-2vcpu-2gb", // Choose the appropriate size for your needs nodeCount: 2, // Number of nodes in the node pool }, }); // Create a provider for the newly created cluster const k8sProvider = new k8s.Provider("do-k8s", { kubeconfig: cluster.kubeConfigs[0].rawConfig, }); // Deploy OpenVPN using Helm chart const openVpnChart = new k8s.helm.v3.Chart("openvpn", { chart: "openvpn", // The repository where 'openvpn' helm chart is located. If not present, it will search Helm's default repos // Example: repo: "https://example.com/charts" version: "5.0.0", // Specify the version of the chart namespace: "default", values: { // Specify any custom values for the OpenVPN chart here // Example: service: { type: "LoadBalancer" } }, }, { provider: k8sProvider }); // Export the cluster's kubeconfig export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

    In this Pulumi program:

    • We first import the required modules @pulumi/pulumi for general Pulumi functionalities, @pulumi/digitalocean for managing resources on DigitalOcean, and @pulumi/kubernetes to control Kubernetes resources.

    • The digitalocean.KubernetesCluster resource is used to create the Kubernetes cluster. We specify the region, Kubernetes version, the node pool's name, size, and the node count.

    • Next, we create a Kubernetes Provider which uses the kubeconfig of the created DigitalOcean cluster. This provider will be used to interact with the cluster’s resources.

    • We then deploy the OpenVPN Helm chart using Pulumi’s k8s.helm.v3.Chart resource. You will need to provide the specific Helm chart name you want to install, in this case, openvpn. Optionally you can specify a repository where the chart is hosted and any custom values to override in the values object.

    • Finally, we export the kubeconfig which can be used to connect to the Kubernetes cluster using a tool like kubectl.

    To run this Pulumi program:

    1. Save the code in a file named index.ts in a new directory.
    2. Run pulumi stack init to create a new stack.
    3. Run pulumi up to preview and deploy the changes.

    After deploying, ensure that OpenVPN's service is set up with an external IP or LoadBalancer if you need external access. Adjust your Helm chart values accordingly to expose the service the way you need it.