Deploy the verhuizen-interface helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart on Kubernetes using Pulumi, you will use the `Chart` resource from the `@pulumi/kubernetes` package. This resource represents a Helm chart in a Pulumi program and allows you to deploy it to a Kubernetes cluster.

Here's what you need to do step by step:

1. **Install Pulumi CLI and Set up Kubernetes Cluster**: Before you start, you need to have Pulumi CLI installed on your machine and have access to a Kubernetes cluster. Pulumi will use your local kubeconfig file by default, so you need to ensure that you're configured to connect to your Kubernetes cluster.

2. **Install Pulumi Language SDK**: You also need to install the Pulumi language SDK for TypeScript (Node.js). This application assumes you already have Node.js and npm installed.

3. **Set Up a New Pulumi TypeScript Project**: Create a new directory for your project, navigate to that directory, and run `pulumi new kubernetes-typescript` to create a new Pulumi TypeScript project.

4. **Writing the Deployment Code**: Now you'll write the actual code that declares your infrastructure, which in this case is simply deploying the Helm chart.

5. **Deploy the Helm Chart**: Finally, you will deploy the Helm chart using `pulumi up`.

Below is a Pulumi program in TypeScript that deploys the `verhuizen-interface` Helm chart. The following points provide a simple explanation of what each section does:

- **Imports**: Including necessary Pulumi and Kubernetes packages.
- **Chart**: Define a Helm chart resource, specifying the chart name, version (optional), and values (optional).
- **Stack Export**: Export any necessary values from the stack which might be URLs or endpoints you might need to access the deployed application.

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

// This section creates a new Helm chart instance of the 'verhuizen-interface' application.
const verhuizenInterfaceChart = new k8s.helm.v3.Chart("verhuizen-interface", {
    // Replace with the repository URL where your Helm chart is located.
    // If the chart is part of the official Helm repo, you might not need to specify this.
    repo: "myhelmrepo",
    
    // Specify the name of the chart.
    chart: "verhuizen-interface",
    
    // Optionally, you can specify the version of the chart.
    // version: "1.0.0",
    
    // You can override default values by providing your custom values here.
    // values: {
    //     key: "value"
    // }
    
    // If you are deploying into a specific namespace, uncomment and set the `namespace` property.
    // namespace: "default",
});

// If you need to export the status URL or any other output from your deployed chart,
// you can get that using chart.getResource and specifying
// the kind of resource and the name as declared in the helm chart.
// Here, we're just printing the chart name.
export const chartName = verhuizenInterfaceChart.chart;
```

Keep in mind:
- The `repo` field should point to the Helm chart repository where `verhuizen-interface` is hosted. Replace `myhelmrepo` with the actual repository URL.
- The `version` is optional, and if you do not specify it, the latest version of the chart will be deployed.
- You can specify the `namespace` where you want to deploy the chart. If this is not included, it defaults to the `default` namespace.
- If your Helm chart requires custom values to configure it, you can provide them in the `values` object.

After writing this program, you can deploy this chart using the following command:

```sh
pulumi up
```

This command will show you a preview of what will be deployed. If everything looks good, select `yes` to proceed with the deployment. After the deployment is complete, it will output any values you have exported from your program.