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

Question

Pulumi · Accepted Answer

In order to deploy the "crossplane-exoscale-factory" Helm chart on an Azure Kubernetes Service (AKS) cluster using Pulumi, you need to follow several steps:

1. **Set up AKS**: First, you need an AKS cluster where you can deploy the Helm chart. You can either use an existing AKS cluster or provision a new one with Pulumi.

2. **Configure Pulumi for AKS**: You should configure Pulumi to use your AKS cluster's credentials so that it can deploy resources to it.

3. **Install Crossplane on AKS**: Since the Helm chart you've mentioned seems to relate to Crossplane, which is an open-source Kubernetes add-on for provisioning and managing cloud infrastructure, you'll likely need to have Crossplane installed and configured on your AKS cluster first. This typically involves installing the Crossplane Helm chart, followed by configuring the Crossplane provider for Exoscale.

4. **Deploy the Helm chart**: Lastly, you can deploy your "crossplane-exoscale-factory" Helm chart on the AKS cluster using Pulumi's Helm support.

Below is a Pulumi program in TypeScript that outlines these steps. This program assumes you are starting from scratch and will need to create a new AKS cluster and install the Crossplane Helm chart:

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

// Step 1: Create a new resource group for the AKS cluster if it doesn't already exist.
const resourceGroup = new azure.core.ResourceGroup("aksResourceGroup");

// Step 2: Create an AKS cluster.
const aksCluster = new azure.containerservice.KubernetesCluster("aksCluster", {
    resourceGroupName: resourceGroup.name,
    defaultNodePool: {
        name: "default",
        nodeCount: 2,
        vmSize: "Standard_DS2_v2",
    },
    dnsPrefix: `${pulumi.getStack()}-kube`,
    identity: {
        type: "SystemAssigned",
    },
});

// Export the AKS cluster's kubeconfig.
export const kubeconfig = aksCluster.kubeConfigRaw;

// Step 3: Set up a K8s provider with the AKS cluster's kubeconfig. This is required for deploying Helm charts.
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: aksCluster.kubeConfigRaw,
});

// Step 4: Install the Crossplane Helm chart into the AKS cluster.
const crossplane = new k8s.helm.v3.Chart("crossplane", {
    chart: "crossplane",
    version: "1.1.0", // Use the correct version for the Crossplane Helm chart.
    fetchOpts: {
        repo: "https://charts.crossplane.io/stable",
    },
}, { provider: k8sProvider });

// Step 5: Deploy the "crossplane-exoscale-factory" Helm chart. This is a placeholder step,
// as it's not clear where the chart resides or its configuration options.
// You need to replace `chartRepoUrl` and `chartVersion` with your specific details.
const exoscaleFactory = new k8s.helm.v3.Chart("exoscaleFactory", {
    chart: "crossplane-exoscale-factory",
    version: "chartVersion", // Use the correct version for your Helm chart.
    fetchOpts: {
        repo: "chartRepoUrl", // The URL to the repository where the Helm chart is hosted.
    },
    // Include any necessary values here to configure the Helm chart.
    values: {
        // ...configuration options
    },
}, { provider: k8sProvider });

// Export the endpoint to access the "crossplane-exoscale-factory" service.
export const exoscaleFactoryEndpoint = exoscaleFactory.getResourceProperty("v1/Service", "exoscale-factory-service", "status").apply(status => status.loadBalancer.ingress[0]);

```

This program performs the following actions:

- **Resource Group Creation**: A new resource group is created in Azure specifically for the AKS cluster.
  
- **AKS Cluster Provisioning**: A new AKS cluster is provisioned with a specified node count and VM size.

- **Kubernetes Provider Setup**: Pulumi sets up a Kubernetes provider that uses the kubeconfig of the newly created AKS cluster.

- **Crossplane Installation**: Pulumi installs the Crossplane Helm chart into the AKS cluster.

- **"crossplane-exoscale-factory" Helm Chart Deployment**: Finally, Pulumi deploys the "crossplane-exoscale-factory" Helm chart. You'll need to provide the correct chart version and repo URL, as well as any values that customize the chart deployment to your needs.

**Important Notes:**
- You must replace placeholders like `chartVersion` and `chartRepoUrl` with the actual values corresponding to your "crossplane-exoscale-factory" Helm chart.
- This program assumes you already have Pulumi set up and configured to access your Azure account and that the Crossplane Helm chart is compatible with the version specified.

After saving this TypeScript code into a `.ts` file, you run the Pulumi command to deploy these resources to Azure:

```bash
pulumi up
```

Remember to review the plan shown by `pulumi up` before confirming the deployment, as this will make changes to your Azure subscription by provisioning resources.