1. Deploy the telegraf-ds-k3s helm chart on Azure Kubernetes Service (AKS)

    TypeScript

    To deploy the Telegraf DaemonSet (telegraf-ds) Helm chart on an AKS (Azure Kubernetes Service) cluster using Pulumi, we will follow these steps:

    1. Create an AKS Cluster: Since Helm charts need to be deployed onto a Kubernetes cluster, we will begin by creating an AKS cluster if you don't have one already.
    2. Install Helm: Helm is a package manager for Kubernetes. Before deploying a Helm chart, we must ensure that Helm is installed and configured to work with our Kubernetes cluster.
    3. Deploy the Helm Chart: Finally, we deploy the Telegraf DaemonSet Helm chart using Pulumi's Kubernetes provider.

    Here's a Pulumi TypeScript program that demonstrates these steps:

    Step 1: Set Up Pulumi and Import Necessary Packages

    First, ensure you have Pulumi installed and configured for use with Azure. Then, create a new directory for your Pulumi project, and inside that directory, initialize a new Pulumi project with pulumi new.

    After setting up the Pulumi project, install the necessary npm packages:

    npm install @pulumi/azure-native @pulumi/kubernetes

    Now, within your Pulumi project's main TypeScript file (usually index.ts), start by importing the packages we just installed:

    Step 2: Create the AKS Cluster

    Below is the Pulumi code to create a new AKS cluster. We are using the azure-native package to create resources that follow the Azure Resource Manager (ARM) APIs.

    import * as azure from "@pulumi/azure-native"; import * as k8s from "@pulumi/kubernetes"; import * as pulumi from "@pulumi/pulumi"; // Create an Azure Resource Group const resourceGroup = new azure.resources.ResourceGroup("resourceGroup"); // Create an AKS cluster const aksCluster = new azure.containerservice.ManagedCluster("aksCluster", { resourceGroupName: resourceGroup.name, agentPoolProfiles: [{ count: 2, vmSize: "Standard_DS2_v2", mode: "System", }], dnsPrefix: "aksk8s", kubernetesVersion: "1.19.11", }); // Export the kubeconfig export const kubeconfig = aksCluster.kubeConfig.apply(k => Buffer.from(k, "base64").toString());

    Step 3: Set Up Kubernetes Provider

    With the AKS cluster created, we need to configure the Kubernetes provider to interact with the AKS cluster. We will use the kubeconfig obtained from the AKS cluster resource for this purpose:

    // Create a Kubernetes provider instance const k8sProvider = new k8s.Provider("k8sProvider", { kubeconfig: kubeconfig });

    Step 4: Deploy the Helm Chart

    Finally, deploy the Telegraf DaemonSet Helm chart. This Helm chart is a pre-made package to deploy Telegraf as a DaemonSet in Kubernetes, which you can find in an existing Helm chart repository.

    // Deploy the telegraf-ds Helm chart const chart = new k8s.helm.v3.Chart("telegraf-ds", { chart: "telegraf-ds-k3s", // Optionally specify the Helm repository here if it's not a stable chart // repositoryOpts: { repo: "https://<helm-chart-repo>" }, }, { provider: k8sProvider });

    Putting It All Together

    Here's the complete program which ties together all the necessary steps:

    import * as pulumi from "@pulumi/pulumi"; import * as azure from "@pulumi/azure-native"; import * as k8s from "@pulumi/kubernetes"; // Create an Azure Resource Group const resourceGroup = new azure.resources.ResourceGroup("resourceGroup"); // Create an AKS cluster const aksCluster = new azure.containerservice.ManagedCluster("aksCluster", { resourceGroupName: resourceGroup.name, agentPoolProfiles: [{ count: 2, vmSize: "Standard_DS2_v2", mode: "System", }], dnsPrefix: "aksk8s", kubernetesVersion: "1.19.11", }); // Export the Kubeconfig of the AKS cluster export const kubeconfig = aksCluster.kubeConfig.apply(k => Buffer.from(k, "base64").toString()); // Create a Kubernetes provider instance const k8sProvider = new k8s.Provider("k8sProvider", { kubeconfig: kubeconfig, }); // Deploy the telegraf-ds Helm chart const chart = new k8s.helm.v3.Chart("telegraf-ds", { chart: "telegraf-ds-k3s", // Optionally specify the Helm repository here if it's not a stable chart // repositoryOpts: { repo: "https://<helm-chart-repo>" }, }, { provider: k8sProvider });

    With this code, you will have an AKS cluster up and running, with the Telegraf DaemonSet deployed on it.

    To apply this Pulumi program:

    • Run pulumi up in the terminal within your Pulumi project directory.
    • Review the proposed changes before confirming the update.

    Remember to replace telegraf-ds-k3s with the correct Helm chart name and repository URL if it's different. If you need to customize the configuration of the Telegraf chart, you can add a values property inside the Chart resource with the custom values you would like to apply.