1. Deploy the zookeeper-3Nodes helm chart on Azure Kubernetes Service (AKS)


    To deploy the zookeeper-3Nodes Helm chart on an Azure Kubernetes Service (AKS) cluster with Pulumi, you need to follow these steps:

    1. Set up an AKS cluster.
    2. Install the Helm chart on the cluster.

    Pulumi allows you to define infrastructure as code using programming languages like TypeScript. In this example, we'll use TypeScript to define our infrastructure.

    First, ensure you have the following prerequisites installed:

    • Pulumi CLI
    • Azure CLI
    • kubectl for interacting with the Kubernetes cluster
    • Node.js and npm for running Pulumi with TypeScript

    To start with Pulumi and AKS, you need to log in to your Azure account using the Azure CLI with az login. Ensure that Pulumi is configured to use the appropriate Azure subscription by setting it via az account set --subscription <SUBSCRIPTION_ID>.

    Also, make sure to initialize a new Pulumi project if you haven't already. You can do this by running pulumi new azure-typescript in your terminal and following the on-screen prompts.

    Here's the TypeScript program using Pulumi to deploy the zookeeper-3Nodes Helm chart on AKS:

    import * as pulumi from "@pulumi/pulumi"; import * as azure from "@pulumi/azure"; import * as k8s from "@pulumi/kubernetes"; import * as azuread from "@pulumi/azuread"; // Create a new Service Principal for the AKS cluster to use for integrating with Azure Active Directory and Azure. const adApp = new azuread.Application("aks-app"); const adSp = new azuread.ServicePrincipal("aks-sp", { applicationId: adApp.applicationId }); // Create the Service Principal secret. const adSpPassword = new azuread.ServicePrincipalPassword("aks-sp-password", { servicePrincipalId: adSp.id, value: "YOUR_PASSWORD_HERE", // Replace with a password of your choosing or use Pulumi's Config to hide secrets. endDate: "2099-01-01T00:00:00Z", }); // Now, we'll create the AKS cluster. const resourceGroup = new azure.core.ResourceGroup("aks-resource-group", { location: "West US", // Choose an appropriate Azure region here. }); const aksCluster = new azure.containerservice.KubernetesCluster("aks-cluster", { resourceGroupName: resourceGroup.name, location: resourceGroup.location, defaultNodePool: { name: "aksagentpool", nodeCount: 3, vmSize: "Standard_DS2_v2", }, dnsPrefix: `${pulumi.getStack()}-kubernetes`, linuxProfile: { adminUsername: "azureuser", sshKey: { keyData: "ssh-rsa AAAAB3Nz...", // Replace with your SSH public key. }, }, servicePrincipal: { clientId: adApp.applicationId, clientSecret: adSpPassword.value, }, kubernetesVersion: "1.19.7", }); // Output the `kubeconfig` so that we can interact with the cluster using `kubectl` outside of Pulumi. export const kubeconfig = aksCluster.kubeConfigRaw; // Use the resulting `kubeconfig` from the AKS cluster to create a Provider. const k8sProvider = new k8s.Provider("k8s-provider", { kubeconfig: aksCluster.kubeConfigRaw, }); // Deploy the `zookeeper-3Nodes` Helm chart using the Provider to communicate with the AKS cluster. const zookeeperChart = new k8s.helm.v3.Chart("zookeeper-chart", { repo: "bitnami", // Specify the Helm chart repository here. chart: "zookeeper", version: "5.14.2", // Specify the chart version you want to deploy. values: { replicaCount: 3, // Since we're deploying `zookeeper-3Nodes`, we specify the replica count as 3. }, }, { provider: k8sProvider });

    Let's go through what this program does:

    1. It creates an Azure Active Directory application and service principal which are required for AKS to interact with other Azure services securely.
    2. It sets up a service principal secret. In a production scenario, you should use Pulumi's Config to manage secrets instead of hardcoding them.
    3. It defines an AKS cluster with a specified number of nodes (3 in this case), VM size, and Kubernetes version.
    4. It exports the kubeconfig which can be used outside of Pulumi to interact with the AKS cluster using kubectl.
    5. It creates a Pulumi Kubernetes provider which uses the kubeconfig to deploy resources to the AKS cluster.
    6. It deploys the zookeeper-3Nodes Helm chart to the AKS cluster using a Chart resource provided by Pulumi's Kubernetes package, and it specifies we want three replicas.

    To run this program:

    • Save the code to a file named index.ts.
    • Run pulumi up to preview and deploy the changes.
    • After deployment, you can use the outputted kubeconfig to interact with the AKS cluster via kubectl.

    Remember to replace placeholders like YOUR_PASSWORD_HERE and SSH key data with your information. Do not commit sensitive data to your version control system. Use Pulumi's configuration and secrets management for sensitive data.

    Please ensure you've configured your Pulumi project and have the required credentials for creating and managing resources in your Azure subscription.