Deploy the k8soauth2-proxy-controller helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the `oauth2-proxy-controller` Helm chart to a DigitalOcean Kubernetes cluster, you'll first need to create a DigitalOcean Kubernetes (DOKS) cluster. Once the cluster is available, you can install the Helm chart using `pulumi-kubernetes`, which interacts with the cluster via Pulumi's Kubernetes provider.

Below is a detailed walkthrough of how to accomplish this using Pulumi with TypeScript.

### Step 1: Install Pulumi and Setup

Before you begin, ensure that you have Pulumi installed and set up on your system, along with the necessary cloud provider credentials configured.

### Step 2: Create a new Pulumi TypeScript project

You can start a new Pulumi project by running `pulumi new typescript` in your terminal and following the prompts. This will set up a new Pulumi project with a `Pulumi.yaml` file and a `index.ts` typescript file where you will place your code.

### Step 3: Define the DigitalOcean Kubernetes cluster

In your `index.ts` file, define a new DigitalOcean Kubernetes cluster.

### Step 4: Deploy the `oauth2-proxy-controller` Helm Chart

With the cluster up and running, utilize the `kubernetes` package to deploy your Helm chart to the newly-created DigitalOcean Kubernetes cluster.

### Step 5: The Pulumi Program

Below is the TypeScript program. Please ensure you have imported the respective packages with the following command:

```bash
$ npm install @pulumi/pulumi @pulumi/digitalocean @pulumi/kubernetes
```

Now, let's look at the TypeScript program:

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

// Step 1: Create a DigitalOcean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-cluster", {
    region: digitalocean.Regions.NYC1,
    version: "latest", // Specify your desired Kubernetes version
    nodePool: {
        name: "default",
        size: digitalocean.DropletSlugs.DropletS2VCPU2GB,
        nodeCount: 2,
    },
});

// Step 2: Define the provider to interact with the DO K8s cluster
const k8sProvider = new kubernetes.Provider("k8s-provider", {
    kubeconfig: cluster.kubeConfigs[0].rawConfig,
});

// Step 3: Deploy the oauth2-proxy Helm chart
const oauth2ProxyChart = new kubernetes.helm.v3.Chart("oauth2-proxy", {
    chart: "oauth2-proxy", // This is the chart name in the helm repository
    // You might need to specify the repository options if the chart is not in the default Helm repo
    version: "5.1.1", // Specify the chart version you want to deploy
    // Provide values for the Helm chart's required fields or custom values
    values: {
        // Add chart specific values here
    }
}, { provider: k8sProvider });

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

Here's what each part of the program does:

1. Define the DigitalOcean Kubernetes cluster with a name `do-cluster` in the NYC1 region. Adjust the parameters like `version`, `size`, and `nodeCount` according to your requirements.

2. Create a Kubernetes provider that uses the kubeconfig from the DigitalOcean Kubernetes cluster. This sets the context for Pulumi to communicate with your cluster.

3. Deploy the `oauth2-proxy` Helm chart using Pulumi's Kubernetes provider. Replace `"oauth2-proxy"` with the appropriate chart name and repository options as required.

The `values` object is where you can specify the configuration values that your Helm chart accepts. These values may include things like replica count, image to use, ingress configurations, and more.

4. Lastly, export the kubeconfig of the created cluster. This allows for easy access to your cluster with tools like `kubectl`.

After adding the TypeScript code to your Pulumi project, run `pulumi up` to create the resources. Pulumi will show you a preview of the resources that will be created and prompt you to confirm before proceeding.

Remember that the exact values and configurations may depend on the `oauth2-proxy` Helm chart's requirements, so please consult the chart's documentation for complete details.

### Step 6: Access and Manage your Cluster

With the kubeconfig exported, you can use the `kubectl` command-line tool to interact with your DigitalOcean Kubernetes cluster and verify the deployment of your Helm chart:

```bash
$ kubectl --kubeconfig=./kubeconfig get pods
```

This command assumes that you have kubectl installed and that the kubeconfig file is saved in the current directory.

### Next Steps

Now that your application is deployed, you can manage its lifecycle using Pulumi and the kubectl utility. Any modifications to your Pulumi program can be applied to the infrastructure by running `pulumi up` again, which is particularly useful for updates or configuration changes.

Remember to thoroughly test your program in a staging environment before deploying it to production. Pulumi's infrastructure as code approach enables you to maintain version-controlled, auditable, and reproducible deployments.

Deploy the k8soauth2-proxy-controller helm chart on Digital Ocean Kubernetes Service

Step 1: Install Pulumi and Setup

Step 2: Create a new Pulumi TypeScript project

Step 3: Define the DigitalOcean Kubernetes cluster

Step 4: Deploy the oauth2-proxy-controller Helm Chart

Step 5: The Pulumi Program

Step 6: Access and Manage your Cluster

Next Steps

Step 4: Deploy the `oauth2-proxy-controller` Helm Chart