Deploy the rke2-kube-proxy helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the rke2-kube-proxy Helm chart on Azure Kubernetes Service (AKS), you'll go through a few high-level steps:

Set up an AKS Cluster: You will create an instance of AKS where the Kubernetes cluster will be hosted.
Install and Configure Helm: Helm is a package manager for Kubernetes, which you'll use to deploy the rke2-kube-proxy chart.
Deploy the Helm Chart: Once Helm is set up, you'll specify the chart details and deploy it to your AKS cluster.

I'll provide you with a Pulumi program written in TypeScript that will guide you through these steps.

Detailed Explanation

Setting up the AKS Cluster

To set up AKS, the azure-native provider is used. The ManagedCluster resource within this provider will create the AKS instance. You'll need to specify various properties such as the node count, VM size, location, and Kubernetes version.

Installing Helm and Configuring the Kubernetes Provider

The Helm Chart resource from the kubernetes package is what Pulumi uses to deploy Helm charts. Before you can use the Helm Chart resource, you need to configure the Kubernetes provider by passing it credentials to access the created AKS cluster. This can be done by querying the outputs from the AKS cluster creation step, such as the kubeconfig.

Deploying the Helm Chart

To deploy the Helm chart, the Chart resource from the kubernetes.helm.v3 module is used. The Helm Chart resource will install the rke2-kube-proxy chart using the Helm CLI's functionality transparently. You'll need to pass the chart name, version, and any custom values if necessary.

Now, here is the Pulumi program that accomplishes the above steps:

import * as pulumi from "@pulumi/pulumi";
import * as azure_native from "@pulumi/azure-native";
import * as k8s from "@pulumi/kubernetes";

// Step 1: Create an AKS Cluster using azure-native provider
const aksCluster = new azure_native.containerservice.ManagedCluster("myAKSCluster", {
    resourceGroupName: "myResourceGroup",
    // Use any necessary Kubernetes version
    kubernetesVersion: "1.21.9",
    agentPoolProfiles: [{
        count: 2,
        maxPods: 110,
        mode: "System",
        name: "agentpool",
        // Based on your requirements choose an appropriate VM size
        vmSize: "Standard_DS2_v2",
        osDiskSizeGB: 30,
        osType: "Linux"
    }],
    // Replace with the desired location
    location: "westus",
    identity: {
        type: "SystemAssigned",
    },
    dnsPrefix: "myaksdns",
});

// Expose the Kubeconfig for the AKS cluster
export const kubeconfig = aksCluster.kubeConfig;

// Step 2: Setup Kubernetes provider to manage resources in the AKS cluster
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: kubeconfig.apply(c => c.rawConfig),
});

// Step 3: Deploy the rke2-kube-proxy Helm chart on the created AKS cluster
const rke2KubeProxyChart = new k8s.helm.v3.Chart("rke2-kube-proxy", {
    chart: "rke2-kube-proxy",
    fetchOpts: {
        repo: "https://<repo_url>", // Replace this with the Helm chart repository URL
    },
    // Specify the chart values, for example: version and any custom value
    version: "1.0.0", // Replace with the desired chart version
    // If required you can have a `values` object to override default chart values
    values: {
        // Your custom values go here
    },
}, { provider: k8sProvider });

// Export the endpoint of the AKS cluster
export const clusterName = aksCluster.name;

Understanding the Pulumi Program

The azure_native.containerservice.ManagedCluster class creates an instance of AKS.
The kubeconfig export provides the kubeconfig output that you'd use to interact with the cluster using kubectl.
The k8s.Provider class configures Pulumi to manage resources in the AKS cluster using Kubernetes credentials.
The k8s.helm.v3.Chart class deploys the rke2-kube-proxy Helm chart to the cluster using the provided Helm repo URL and other chart-related configurations.
The clusterName export gives you the name of the created AKS cluster for reference.

Important Notes

Make sure to replace <repo_url> with the actual repository URL where the rke2-kube-proxy chart is located.
Adjust the version field to match the version of the Helm chart you wish to deploy.
You may need additional setup or configurations based on your requirements which can be specified in the values object.

Also, ensure you have the right permissions and configurations in place to run Pulumi with Azure resources. This includes setting up the Azure credentials on your system or CI/CD environment where you run pulumi up.