Deploy the kyverno-operator helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the `kyverno-operator` Helm chart on an Azure Kubernetes Service (AKS) cluster using Pulumi, you would need to perform the following steps:

1. Create an AKS cluster within your Azure subscription.
2. Install the Helm chart for `kyverno-operator` on the AKS cluster.

Firstly, you'll need an existing AKS cluster or you could create one using Pulumi's `azure-native` package. Note that deploying a cluster might take some time due to the resources that Azure has to provision. For the simplicity of this guide, we'll assume you already have an AKS cluster and the necessary configurations to access it via `kubectl`.

Secondly, you use the `kubernetes` package for Pulumi to deploy the `kyverno-operator` Helm chart. The `kubernetes.helm.v3.Chart` resource is what you use to specify the Helm chart you want to deploy.

Below is a TypeScript program for Pulumi which outlines these steps. To run this program, you need to have Pulumi installed and configured for use with your Azure account. You should also configure `kubectl` to connect to your AKS cluster.

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

// Configuration for your AKS cluster - replace these with your cluster's specific values
const aksClusterName = "my-aks-cluster";
const aksResourceGroupName = "my-aks-resource-group";

// Fetch the kubeconfig of an existing AKS cluster (assuming you have one)
const aksCluster = azure.containerservice.getKubernetesCluster({
    name: aksClusterName,
    resourceGroupName: aksResourceGroupName,
});

// Create a provider for the existing AKS cluster
const aksProvider = new k8s.Provider("aksK8s", {
    kubeconfig: aksCluster.kubeConfigRaw,
});

// Deploy the kyverno-operator Helm chart using the AKS cluster's provider
const kyvernoChart = new k8s.helm.v3.Chart("kyverno-operator", {
    chart: "kyverno-operator",
    version: "1.3.6", // Replace with the desired chart version
    fetchOpts:{
        repo: "https://kyverno.github.io/kyverno/", // Helm repository URL
    },
}, { provider: aksProvider });

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

To run this Pulumi program:

1. Save the above script to a file (e.g., `index.ts`).
2. Install the required NPM packages (`@pulumi/kubernetes`, `@pulumi/azure`) in your project directory:

```sh
npm install @pulumi/kubernetes @pulumi/azure
```

3. Run `pulumi up` to preview and deploy the changes.

What this program does:

- Defines a reference to an existing AKS cluster resource through `azure.containerservice.getKubernetesCluster`.
- Sets up a Kubernetes provider linked to the selected AKS cluster.
- Deploys `kyverno-operator` from its Helm chart repository to your AKS cluster using `k8s.helm.v3.Chart` resource.

Please ensure you replace the placeholder values of `aksClusterName`, `aksResourceGroupName`, and `chart` version with the values that match your environment and requirements. The `provider` option at the Helm chart instantiation ensures that you are deploying to the AKS cluster.

Lastly, keep in mind that managing cloud resources can incur costs, and you should always review the associated costs with creating or deploying resources on cloud providers.