Deploy the ueb-listener helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart on a Kubernetes cluster using Pulumi, you would typically use the `helm.v3.Chart` resource from the Pulumi Kubernetes provider. This resource allows you to deploy a Helm chart from various sources such as a Helm repository, a local directory, or even an in-line chart specification.

For this particular goal of deploying the `ueb-listener` Helm chart, let's assume that the chart is available in a public or private Helm repository. You will need to specify the repository URL (`repo`), the chart name (`chart`), and optionally the chart version (`version`). You can also provide a set of values to customize the deployment (`values`) and if needed, the namespace to deploy the chart into (`namespace`).

Below is a TypeScript program that defines a Pulumi stack to deploy the `ueb-listener` Helm chart. This example assumes that you have a Kubernetes cluster set up and configured with access via `kubectl`. Please replace `CHART_VERSION` with the specific chart version you wish to deploy and `REPO_URL` with the URL of the Helm repository containing the `ueb-listener` chart.

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

const namespace = "default"; // Use the desired Kubernetes namespace
const repoUrl = "REPO_URL"; // Replace with the repository URL
const chartVersion = "CHART_VERSION"; // Replace with a specific chart version, if required

const uebListenerChart = new k8s.helm.v3.Chart("ueb-listener-chart", {
    // Chart can be specified by repo URL or repository options.
    repo: repoUrl, 
    chart: "ueb-listener", 
    version: chartVersion, 
    namespace: namespace,
    // Values can be provided to the Helm chart.
    values: {
        // Provide custom values here.
        // These values would typically be documented by the chart itself.
        // For example:
        // service: {
        //   type: "ClusterIP",
        // },
    },
    // Optionally, you can specify transformation functions to
    // manipulate the resources before they are created.
    transformations: [
        // A sample transformation:
        (resource) => {
            if (resource.kind === "Deployment" && resource.apiVersion === "apps/v1") {
                resource.metadata.annotations = { "example.com/annotation": "true" };
            }
        },
    ],
});

// Export the name of the chart deployment
export const chartName = uebListenerChart.metadata.apply(metadata => metadata.name);
```

In this program, a `Chart` resource is created, which Pulumi will use to deploy the specified Helm chart into your cluster. The `values` parameter can be used to customize aspects of the Helm chart; the example above shows a comment where you could customize the service type, among other options. Helm charts usually come with a `values.yaml` file that describes the configuration options available.

The `transformations` parameter lets you modify the resulting Kubernetes manifests before they are applied to the cluster, which is optional and only necessary if you need to modify the resources defined by the Helm chart.

After this Pulumi program is written to a file such as `index.ts`, running `pulumi up` will execute the deployment. The program will communicate with the Kubernetes API to realize the state declared in the program, deploying your `ueb-listener` Helm chart to your cluster.

Remember to customize the example according to the Helm chart's requirements and your cluster's specific setup. It is essential to review and adjust the values in the `values` property to match the configuration supported and expected by the `ueb-listener` chart.