Deploy the gitpod-selfhosted helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy the Gitpod self-hosted Helm chart on a Kubernetes cluster using Pulumi, you'll need to make use of the `Chart` resource from the Pulumi Kubernetes provider. This allows you to deploy Helm charts into your Kubernetes cluster. Helm is a popular package manager for Kubernetes, which simplifies deployment of applications and services.

Here's a step-by-step explanation of the process and the corresponding Pulumi program in TypeScript to achieve this:

1. **Setup**: Ensure you have Pulumi installed and configured for TypeScript, as well as access to a Kubernetes cluster where you have rights to deploy resources. Also, make sure Helm and Gitpod charts are available and accessible for Pulumi.

2. **Import Pulumi Kubernetes**:
    - Import the necessary Pulumi Kubernetes package to interact with your cluster.
    
3. **Create a new Kubernetes Chart Resource**:
    - Use the `kubernetes.helm.v3.Chart` class to define the Helm chart deployment. You'll need to provide a chart name, the chart repository (if it's not a standard repo included with Helm), and any custom values you want to override in the chart's `values.yaml` file.

4. **Deploy**:
    - Run the `pulumi up` command to deploy the Gitpod self-hosted Helm chart using Pulumi. After confirming the preview, Pulumi will perform the deployment to the cluster.

Now let's look at the Pulumi TypeScript program that accomplishes this:

```typescript
import * as pulumi from '@pulumi/pulumi';
import * as k8s from '@pulumi/kubernetes';

// Initialize the Pulumi program
const projectName = "gitpod-selfhosted-deploy";
const project = new pulumi.Project(projectName, {
    description: "Deploy Gitpod self-hosted Helm chart on Kubernetes",
});

// Define the Gitpod self-hosted Helm chart
const gitpodChart = new k8s.helm.v3.Chart('gitpod-selfhosted', {
    // The Helm repository for the Gitpod chart.
    // If Gitpod's chart is on an HTTP/HTTPS Helm chart repository,
    // Provide the 'repo' property with the repository URL here.
    chart: 'gitpod',
    // You may need to include the 'version' property if you want a specific chart version.
    // version: '<chart-version>',

// Include any necessary values overrides here
    // This would replace or supplement the chart's default `values.yaml` content.
    // For example:
    // values: {
    //   component: {
    //     property: 'new value',
    //   },
    // },

// If the chart requires namespace-scoped resources,
    // Uncomment and set the 'namespace' property to the target namespace.
    // namespace: 'gitpod',

// 'fetchOpts' object is used when the chart needs to be fetched from an external source.
    // Uncomment and configure it if Gitpod chart requires it.
    // fetchOpts: {
    //   repo: 'https://charts.gitpod.io/', // Example Gitpod Helm chart URL
    // },

// Monitor status by subscribing to deployment status updates if needed
    
}, { project });

// Export the base URL for the Gitpod instance
// Assuming the Gitpod Helm chart exposes a service with a LoadBalancer or Ingress,
// you would fetch that data as follows and export it for easy access.
// You may need to adjust the service name and properties based on the actual chart's resources.

// const gitpodService = gitpodChart.getResource('v1/Service', 'gitpod');
// export const gitpodUrl = gitpodService.status.loadBalancer.ingress[0].hostname;
```

In this program, `@pulumi/kubernetes` is the Pulumi provider for Kubernetes, which allows you to interact with your Kubernetes resources like deploying a Helm chart. The `Chart` class represents a Helm chart in code and is used to deploy the Gitpod self-hosted chart.

Please note that you may need to tailor a few values (e.g., chart version, custom values, namespace, Helm repository URL, etc.) to match your specific requirements or Gitpod Helm chart configuration.

To apply this Pulumi program and deploy Gitpod to your Kubernetes cluster, run the `pulumi up` command in the same directory as your Pulumi project. Pulumi will show you a preview of what will be deployed. After you approve the preview, Pulumi will deploy the resources to your cluster.

Remember that if you're using a specific Kubeconfig context or you have multiple Kubernetes clusters, you should ensure Pulumi is configured to use the correct context for the target cluster where you wish to deploy Gitpod.