Deploy the operator-crds helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart on a Kubernetes cluster using Pulumi, you'll need to write a Pulumi program using the Kubernetes provider. The `kubernetes.helm.v3.Chart` resource is specifically designed to work with Helm charts in a Kubernetes cluster.

In the following example, I'll show you a TypeScript Pulumi program that performs the following steps:

1. **Prerequisites**: You should have a Kubernetes cluster already running and have `kubectl` configured to communicate with it.
2. **Helm Chart**: We will deploy the `operator-crds` Helm chart.

The program will assume that you have Pulumi and the Pulumi CLI installed and set up, and that you have a Kubernetes cluster available.

Here's how to deploy the `operator-crds` Helm chart:

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

// Define the Helm chart, version, and values to use
const operatorCrdsChart = new k8s.helm.v3.Chart("operator-crds", {
    // By default, Helm will install the chart in the `default` namespace
    // This can be changed by setting the `namespace` property
    chart: "operator-crds",
    version: "1.0.0", // Replace with the actual chart version you wish to deploy
    fetchOpts: {
        // Replace 'https://example.com/helm-charts' with the actual Helm repository URL
        // where the 'operator-crds' chart is hosted
        repo: "https://example.com/helm-charts",
    },
    // If you have specific values you'd like to override in the chart,
    // you can place them here, for example:
    // values: { key1: "value1", key2: "value2" },
});

// The `Chart` resource does not have any output properties for accessing individual components of the chart
// To access chart-related resources, you need to use other `k8s` resources like `k8s.apiextensions.v1.CustomResource`,
// `k8s.core.v1.Service`, etc.

// Export the base DNS name of the cluster, which may be needed for other resources
export const baseDnsName = operatorCrdsChart.getResourceProperty("v1/Service", "my-service", "status").apply(status => status.loadBalancer.ingress[0].hostname);
```

In this program:

- We import the `@pulumi/kubernetes` package to interact with Kubernetes resources within Pulumi.
- We create a new Helm chart using `new k8s.helm.v3.Chart` which will install the `operator-crds` Helm chart into the cluster. You'll need to provide the appropriate `version` and `fetchOpts.repo` values that correspond to the chart you want to deploy.
- If the Helm chart requires any specific values to be configured, you can set them in the `values` property of the Chart resource. Uncomment and modify the `values` property as necessary.

You can apply this Pulumi program by saving it to a file (e.g., `index.ts`), and then running `pulumi up`. This will prompt you to create a new stack or select an existing one, and then perform an update to deploy the resources defined in the program.