Deploy the powerdns-admin-proxy helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the PowerDNS Admin Proxy Helm chart on an Azure Kubernetes Service (AKS) cluster, we need to go through a series of steps using Pulumi with TypeScript. First, we must set up an AKS cluster. Once the cluster is running, we will use Pulumi's Kubernetes provider to deploy the PowerDNS Admin Proxy Helm chart to the cluster.

Here's how the process can be broken down:

Set up AKS Cluster: We'll create an AKS cluster resource using Pulumi's azure-native provider. This resource will define the properties of the AKS cluster such as node size, count, and Azure location.
Configure Kubernetes Provider: After the AKS cluster is provisioned, we need to configure the Pulumi Kubernetes provider to use the AKS cluster's kubeconfig. This will allow us to deploy Kubernetes resources to the AKS cluster.
Deploy Helm Chart: Using Pulumi's kubernetes provider, we will deploy the PowerDNS Admin Proxy Helm chart. We'll need to specify the repository and chart name, and we can optionally specify any values to override the default chart settings.

Below is the TypeScript program that performs these steps using Pulumi:

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

// Step 1: Create an AKS cluster
const resourceGroupName = new azure_native.resources.ResourceGroup("myResourceGroup");

const aksCluster = new azure_native.containerservice.ManagedCluster("myAksCluster", {
    resourceGroupName: resourceGroupName.name,
    agentPoolProfiles: [{
        count: 1,
        maxPods: 110,
        mode: "System",
        name: "agentpool",
        osDiskSizeGB: 30,
        osType: "Linux",
        vmSize: "Standard_DS2_v2",
    }],
    dnsPrefix: "myakscluster",
    enableRBAC: true,
    kubernetesVersion: "1.21.2",
    linuxProfile: {
        adminUsername: "azureuser",
        ssh: {
            publicKeys: [{
                keyData: "<YOUR_SSH_PUBLIC_KEY>",
            }],
        },
    },
    nodeResourceGroup: "myAksNodeResourceGroup",
});

// After the AKS cluster is provisioned, Pulumi outputs the kubeconfig needed to manage the cluster
const kubeconfig = aksCluster.kubeConfig.apply(cfg => cfg.raw);

// Step 2: Set up the Pulumi Kubernetes provider to deploy resources to the AKS cluster
const k8sProvider = new kubernetes.Provider("k8sProvider", {
    kubeconfig: kubeconfig,
});

// Step 3: Deploy the PowerDNS Admin Proxy Helm chart to the AKS cluster using the k8sProvider
const powerdnsAdminProxyChart = new kubernetes.helm.v3.Chart("powerdns-admin-proxy", {
    chart: "powerdns-admin-proxy",
    version: "1.2.3", // specify your desired chart version
    fetchOpts: {
        repo: "https://helm.example.com/", // specify the Helm chart repository
    },
}, { provider: k8sProvider });

// Export the public endpoint for the PowerDNS Admin Proxy
export const powerdnsAdminProxyEndpoint = pulumi.interpolate`http://${aksCluster.fqdn}/`;

To summarize, the azure-native provider is used to declare the AKS cluster; once it's created, the output kubeConfig is used to configure the Kubernetes provider. This configuration sets up the necessary connection details for Pulumi to manage resources in the AKS cluster. Finally, we use the kubernetes provider to deploy the Helm chart to the AKS cluster, including specifying the Helm chart version and repository URL.

Remember, you will need to replace <YOUR_SSH_PUBLIC_KEY> with your actual SSH public key and adjust the version and repo values of powerdnsAdminProxyChart as per the actual details of the PowerDNS Admin Proxy Helm chart you want to deploy.

Please ensure you have the correct Helm chart name and repository, as this is just a placeholder and might not point to an actual Helm repository. To find real Helm charts for PowerDNS, you could use Helm's search functionality or look in public Helm repositories.