Deploy the crossplane-azure-factory helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the `crossplane-azure-factory` Helm chart on Azure Kubernetes Service (AKS), you would use Pulumi’s Kubernetes provider to interact with AKS and deploy the Helm chart.

The program will perform the following steps:
1. Create an instance of AKS using the `azure-native` provider package.
2. Set up a Kubernetes provider instance that targets the AKS cluster.
3. Deploy the `crossplane-azure-factory` Helm chart to the AKS cluster using Pulumi's `kubernetes` provider package.

Below is a step-by-step guide on how to perform these actions:

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

// Step 1: Create a new AKS cluster.
const resourceGroupName = "myResourceGroup";
const resourceGroup = new azureNative.resources.ResourceGroup(resourceGroupName, {
    resourceGroupName: resourceGroupName,
});

const k8sCluster = new azureNative.containerservice.ManagedCluster("myAKSCluster", {
    resourceGroupName: resourceGroup.name,
    agentPoolProfiles: [{
        count: 1,
        maxPods: 110,
        mode: "System",
        name: "agentpool",
        osType: "Linux",
        vmSize: "Standard_DS2_v2",
    }],
    dnsPrefix: "myakscluster",
});

// Export the KubeConfig of the AKS cluster to use it with a Kubernetes provider.
export const kubeConfig = k8sCluster.kubeConfig;

// Step 2: Create a Kubernetes provider instance that uses the kubeConfig of the AKS cluster.
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: kubeConfig,
});

// Step 3: Deploy the crossplane-azure-factory Helm chart.
const crossplaneAzureFactoryChart = new k8s.helm.v3.Chart("crossplane-azure-factory", {
    chart: "crossplane-azure-factory",
    version: "1.0.0", // Specify the chart version you wish to deploy.
    // You may also need to provide a `repo` attribute if the chart
    // is not in the default helm chart repository.
    fetchOpts: {
        repo: "https://charts.crossplane.io/alpha", // This is an example repo URL, ensure you have the correct URL.
    },
}, { provider: k8sProvider });

// Export the status of the deployed Helm chart.
export const chartStatus = crossplaneAzureFactoryChart.status;
```

**Explanation:**

- Firstly, we’re importing the necessary Pulumi modules: Pulumi itself, the Azure Native package (for creating Azure resources), and the Kubernetes package (for deploying resources within the AKS cluster).

- We define a resource group for our AKS Cluster, which is a logical container for Azure resources.

- We then create an AKS cluster with one agent node pool and Linux nodes of a specified size.

- After the cluster is provisioned, we export its kubeconfig which is needed for the Kubernetes provider to interact with the cluster.

- We set up the Kubernetes provider with the AKS kubeconfig. This binds Pulumi's Kubernetes resources with your actual AKS cluster.

- Finally, we define a Helm chart resource, specifying the chart name and version (ensure you have the correct version). We also specify the repository where Pulumi can find the chart if it’s not in the default Helm repository.

- Lastly, we export the status of the Helm chart deployment for easy status checks in the CLI.

Keep in mind that `crossplane-azure-factory` version and repository URL provided above are placeholders, and you should replace them with the actual values you require.

To run this program, you need to have Pulumi and the necessary cloud provider CLI installed and configured. After setting up Pulumi with `pulumi new`, you can place this code in `index.ts`, and then run the following commands:

- `pulumi up` to preview and deploy the changes.
- `pulumi export` to see the outputs of your program after deployment.

Ensure the Pulumi CLI has the necessary access permissions to create resources in your Azure subscription.