Deploy the livekit-recorder helm chart on Kubernetes

Question

Pulumi · Accepted Answer

In this task, you will be deploying a Helm chart for `livekit-recorder` on a Kubernetes cluster using Pulumi's infrastructure as code framework. Pulumi allows you to define infrastructure using familiar programming languages, and in this case, we'll be using TypeScript.

The `livekit-recorder` Helm chart is a predefined package that helps you deploy and manage the LiveKit Recorder on Kubernetes with minimal configuration. Helm charts simplify the deployment and management of applications on Kubernetes.

Our Pulumi program will utilize the `Chart` resource from the `@pulumi/kubernetes` package. The `Chart` resource enables us to deploy a Helm chart from a repository or a local path. We need to specify the chart name, the repository where the chart is located, and any custom values we would like to apply.

Below you'll find a TypeScript program that defines the deployment of the `livekit-recorder` Helm chart:

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

// Define a new Helm Chart.
const livekitRecorderChart = new k8s.helm.v3.Chart("livekit-recorder", {
    // Specify the chart repository and name.
    repo: "livekit",
    chart: "livekit-recorder",
    // Optionally, you can specify the version of the chart.
    // version: "x.y.z",
    // Pass any custom values to the chart.
    values: {
        // ... insert your custom values here
    },
    // Specify the namespace where the chart should be installed.
    // If not set, it defaults to the 'default' namespace.
    namespace: "recording-namespace",
    // Set to a higher value to log the results of the template rendering to the pulumi logs.
    // Default is 0.
    transformManifest: (manifest: any) => {
        // You can manipulate the manifest if necessary before it is applied to the Kubernetes cluster.
        return manifest;
    },
});

// Export the base URL for the livekit-recorder service once it is deployed
export const livekitRecorderServiceEndpoint = livekitRecorderChart.getResourceProperty(
    "v1/Service",
    "livekit-recorder-service",
    "status"
).apply(status => status.loadBalancer.ingress[0].hostname);
```

Let's break down the key parts of this program:

- We import the `@pulumi/kubernetes` package, which is required to interact with Kubernetes resources using Pulumi.
- We create a new instance of a `Chart` resource named `livekit-recorder`. This resource is what tells Pulumi that we want to deploy a Helm chart.
- We specify the repository using the `repo` key. This is the Helm repository where our chart is located.
- The `chart` key is the name of the Helm chart we want to deploy.
- The `version` key is optional and can be used to pin to a specific version of the chart.
- The `values` key allows you to provide a set of custom values to configure the Helm chart. These values override the defaults provided by the Helm chart.
- The `namespace` key specifies the Kubernetes namespace where the chart should be installed.
- The `transformManifest` function is a hook that allows for directly manipulating the generated Kubernetes manifests before they are applied to the cluster.

Lastly, we export the endpoint of the `livekit-recorder` service. Access to this service enables interaction with the recorder component once it's up and running.

To run this program:

1. Ensure you have Pulumi installed and configured with access to a Kubernetes cluster.
2. Save the above code to a file named `index.ts`.
3. To initialize a Pulumi project, run `pulumi new typescript` in the same directory as your `index.ts`.
4. Run `npm install` to fetch the necessary node modules.
5. Finally, deploy your stack with `pulumi up`.

Pulumi will perform the actions described in your code and output the base URL for the `livekit-recorder` service.