Deploy the openid helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the OpenID Helm chart on a Digital Ocean Kubernetes Service, you'll need to perform a series of steps using Pulumi's TypeScript SDK. The following program will guide you through:

Creating a Digital Ocean Kubernetes cluster.
Deploying a Helm chart referencing OpenID onto the created cluster.

Creating a Digital Ocean Kubernetes Cluster

First, you will need to create a Kubernetes cluster on Digital Ocean. This can be accomplished using the digitalocean.KubernetesCluster resource from Pulumi's Digital Ocean provider. You must have your Digital Ocean access token set as an environment variable or configured in the Pulumi settings for the provider to work.

Here's how you'd create a simple Kubernetes cluster:

import * as digitalocean from "@pulumi/digitalocean";
import * as pulumi from "@pulumi/pulumi";

// Create a Digital Ocean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-k8s-cluster", {
    region: digitalocean.Regions.NYC3, // Replace with your preferred region
    version: "1.21.5-do.0", // Specify the Kubernetes version
    nodePool: {
        name: "default",
        size: digitalocean.DropletSlugs.DropletS2VCPU2GB, // Select the type of node
        nodeCount: 3, // Number of nodes in the node pool
    },
});

// Export the kubeconfig
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

Deploying the OpenID Helm Chart

Once you have a Kubernetes cluster, you can deploy Helm charts to it. For this, Pulumi provides the kubernetes.helm.v3.Chart resource. This resource requires you to have the @pulumi/kubernetes package installed. The Helm chart for OpenID will need to be identified by its repository and chart name.

Here's an example of deploying the OpenID Helm chart to the created Digital Ocean Kubernetes cluster.

import * as kubernetes from "@pulumi/kubernetes";

// Configure the Kubernetes provider using the kubeconfig from the Digital Ocean cluster
const provider = new kubernetes.Provider("do-k8s-provider", {
    kubeconfig: kubeconfig,
});

// Deploy an OpenID Helm chart
const openidChart = new kubernetes.helm.v3.Chart("openid-chart", {
    chart: "openid", // The name of the helm chart to deploy
    // If the chart is hosted in a Helm repository, you would also specify the `repo` property here.
    // Also, make sure you specify the version of the OpenID chart you wish to deploy.
}, { provider });

// Export the Helm release name
export const releaseName = openidChart.releaseName;

When you apply this Pulumi program, it will reach out to Digital Ocean to provision a Kubernetes cluster, install the specified Helm chart, and then return the name of the Helm release.

Note: Make sure you're aware of the actual Helm chart name for the OpenID Connect-compatible server you want to deploy, as "openid" in the above example is just a placeholder. You will need the actual chart value and may need to specify additional parameters such as repo if the chart is not in the default Helm repository.

Here is the complete Pulumi program which includes creating a Kubernetes cluster and deploying the Helm chart:

import * as pulumi from "@pulumi/pulumi";
import * as digitalocean from "@pulumi/digitalocean";
import * as kubernetes from "@pulumi/kubernetes";

// Step 1: Creating the Digital Ocean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-k8s-cluster", {
    region: digitalocean.Regions.NYC3, // Replace with your preferred region
    version: "1.21.5-do.0", // Specify the Kubernetes version
    nodePool: {
        name: "default",
        size: digitalocean.DropletSlugs.DropletS2VCPU2GB, // Select the type of node
        nodeCount: 3, // Number of nodes in the node pool
    },
});

// Export the kubeconfig
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

// Step 2: Deploying OpenID Helm chart on the cluster
const provider = new kubernetes.Provider("do-k8s-provider", {
    kubeconfig: kubeconfig,
});

const openidChart = new kubernetes.helm.v3.Chart("openid-chart", {
    chart: "openid", // Make sure to replace with the actual chart name
    // If the chart is in a custom repository, include `repo: "<URL to your helm chart repository>"`
    // And specify the chart version if required using `version: "<chart version>"`
}, { provider });

export const releaseName = openidChart.releaseName;

Make sure to replace placeholders with actual values for your use case. For example, the chart name, the Kubernetes version, and the region should all be set accordingly.

To run the Pulumi program, you need to have Pulumi CLI installed and set up for TypeScript. Run pulumi up to preview and deploy the changes to your cloud provider.

Keep in mind that managing cloud resources might incur costs, so review the associated costs with your cloud provider and consider your quota limits.