Deploy the chromium-render helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the `chromium-render` Helm chart on Digital Ocean Kubernetes Service (DOKS), you will need to follow these steps:

1. Create a Kubernetes cluster in Digital Ocean.
2. Configure `kubectl` to connect to your Kubernetes cluster.
3. Add the Helm repository that contains the `chromium-render` chart.
4. Install the `chromium-render` chart on your cluster using Helm.

Below is a Pulumi TypeScript program that performs these steps. First, the program creates a Kubernetes cluster on Digital Ocean. Then, it uses the `kubernetes` package to deploy the `chromium-render` Helm chart.

Before running this code, you should have Pulumi installed and set up with your Digital Ocean token. If you don't have a token or your Pulumi CLI configured for Digital Ocean yet, you will need to create a token in your Digital Ocean dashboard and then configure Pulumi to use it.

## Detailed Program Explanation

### Kubernetes Cluster on Digital Ocean

The first step is to create a Kubernetes cluster on Digital Ocean using the `digitalocean.KubernetesCluster` resource. You will need to specify the region, the version of Kubernetes you want to use, and the details of the node pool (size and number of nodes).

### Helm Chart Deployment

After the cluster is created, you'll configure Pulumi to use the Kubernetes cluster by setting up a provider instance. Then, you'll deploy the `chromium-render` Helm chart using the `kubernetes.helm.v3.Chart` resource from Pulumi's Kubernetes provider, which allows you to manage Helm chart deployments in a declarative way.

The Helm chart is not installed directly from a repository URL here because the specific repository might require adding to the local Helm configuration first (`helm repo add`). In a typical Pulumi program, you would need to ensure the repository is added to your local Helm config, but the example assumes that the chart is either already available in your configured Helm repositories or bundled in your local filesystem.

Let's proceed with the actual Pulumi 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 Kubernetes cluster on Digital Ocean.
const cluster = new digitalocean.KubernetesCluster("do-cluster", {
    region: "nyc3",
    version: "1.21.5-do.0",
    nodePool: {
        name: "default",
        size: "s-2vcpu-2gb",
        nodeCount: 2 // Adjust the node count as per your requirements
    }
});

// Once the cluster is created, we create a Kubeconfig file that Pulumi can use to communicate with the cluster.
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

// Step 2: Install the chromium-render Helm chart on the cluster.
// Use the cluster's kubeconfig for the Helm chart deployment.

// Define the k8s provider using the cluster's kubeconfig
const k8sProvider = new kubernetes.Provider("k8s-provider", {
    kubeconfig: kubeconfig
});

// Install the chromium-render helm chart
const chart = new kubernetes.helm.v3.Chart("chromium-render-chart", {
    chart: "chromium-render",
    // Use the appropriate repository and chart version that includes the 'chromium-render' chart.
    // If the chart is hosted on a custom Helm repository, provide the 'repo' field.
    // Example: repo: "https://example.com/helm-charts"
    version: "1.0.0", // Use the correct version of the Helm chart.
    // You can override default values here using the 'values' property
    values: {
        // For example, to change service type to LoadBalancer
        // service: { type: "LoadBalancer" }
    },
}, { provider: k8sProvider });

// Export the public endpoint of the chromium-render service
export const chromiumRenderEndpoint = chart.getResourceProperty("v1/Service", "chromium-render", "status").apply(status => status.loadBalancer.ingress[0].ip);
```

In the above program, replace the `version` value with the actual version of `chromium-render` you want to deploy. Also, if `chromium-render` is hosted on a custom Helm repository, you must specify the `repo` field with the repository URL.

After you run `pulumi up` with this program, Pulumi will perform the deployment, and if everything is configured correctly, the `chromium-render` Helm chart will be deployed to your Digital Ocean Kubernetes cluster. The endpoint of the service will be exported so you can easily access it.