Deploy the kube-gcp-disks-roomba helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy the `kube-gcp-disks-roomba` Helm chart on Kubernetes using Pulumi, you essentially need to perform the following tasks:

1. Set up the Pulumi Kubernetes provider so that Pulumi can communicate with your Kubernetes cluster.
2. Define the Helm chart resource using the Pulumi Kubernetes provider, specifying the Helm chart details, such as the name (`kube-gcp-disks-roomba` in this case), repository, and any necessary values that configure the chart.

Pulumi supports Helm as a first-class citizen, which means you can define Helm charts in your Pulumi program directly, without the need for `helm` CLI tools, and benefit from the declarative infrastructure as code model.

Below is a step-by-step TypeScript program that demonstrates how to deploy a Helm chart using Pulumi:

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

// The version of the Pulumi Kubernetes provider is explicitly imported here.
// This sample uses version "4.4.0", which may need to be updated based on the latest available version.
import { Chart, ChartOpts } from "@pulumi/kubernetes/helm/v3";

// Instantiate the Kubernetes provider.
// Make sure your KUBECONFIG environment variable is set or you provide the relevant kubeconfig options.
const k8sProvider = new k8s.Provider("k8s-provider", {});

// Define the Helm chart for kube-gcp-disks-roomba.
// Chart resources require at minimum the chart version, the chart name, and the repository where the chart is hosted.
const roombaChart = new Chart("kube-gcp-disks-roomba-chart", {
    chart: "kube-gcp-disks-roomba",
    version: "0.1.0", // Replace with the actual chart version you want to deploy.
    repositoryOpts: {
        repo: "https://your-helm-chart-repository", // Replace with the actual Helm chart repository URL.
    },
    // Specify any custom values you need to provide to the Helm chart.
    // For instance, if there are any required values that tailor the chart to your environment, provide them here.
    values: {
        // e.g., image: { tag: "latest" }
    },
}, { provider: k8sProvider });

// Export the name of the chart deployment.
// This name can be useful to track the deployed Chart instance or for interdependencies between resources in Pulumi.
export const chartName = roombaChart.metadata.name;
```

This code does the following:

- Imports the necessary modules from the Pulumi Kubernetes package.
- Sets up a Kubernetes provider, which provides Pulumi with information on how to communicate with your Kubernetes cluster.
- Declares a Helm chart resource that tells Pulumi to deploy `kube-gcp-disks-roomba`. It specifies the chart name, version, and repository. If you have specific configuration values to provide to the chart, do it in the `values` property within the `ChartOpts`.
- Exports the name of the chart deployment as a stack output, which can be useful if you need to reference this deployment in other parts of your Pulumi program or if you want to manage dependencies explicitly.

This program assumes that you know the location of the Helm chart repository where `kube-gcp-disks-roomba` is hosted along with the version of the Helm chart you wish to deploy. Replace the placeholders `https://your-helm-chart-repository` and `"0.1.0"` with the actual values.

After you've written this code to a file (typically `index.ts` when working with TypeScript), you can run this program using Pulumi CLI commands:

```shell
pulumi up
```

This command will compile the TypeScript program, prompt you with a preview of the actions Pulumi will take to deploy the chart, and upon your confirmation, it will proceed with the chart's deployment to the Kubernetes cluster.