1. Deploy the speedtest-tracker helm chart on Linode Kubernetes Engine


    Deploying a Helm chart on a Kubernetes cluster using Pulumi can be achieved through the kubernetes.helm.v3.Chart resource, which allows you to deploy Helm charts into a Kubernetes cluster. In our case, we want to deploy the speedtest-tracker chart on the Linode Kubernetes Engine (LKE).

    Before proceeding with the Pulumi code, you must have:

    1. A Linode account with permissions to create a Kubernetes cluster on Linode.
    2. The Linode CLI installed and configured with a Linode API token.
    3. Pulumi CLI installed on your system.
    4. kubectl installed and configured to interact with Kubernetes clusters.

    Here's how we can start:

    Step 1: Set up our Pulumi program:

    import * as pulumi from "@pulumi/pulumi"; import * as k8s from "@pulumi/kubernetes"; // Initialize the Linode provider for Kubernetes. // Make sure to configure the Kubernetes provider with the kubeconfig obtained from LKE. const kubeconfig = "<Your LKE Kubeconfig>"; // Create a Kubernetes provider instance using the kubeconfig from LKE. const provider = new k8s.Provider("lke-k8s", { kubeconfig });

    Step 2: Deploy the speedtest-tracker using a Helm chart:

    To deploy the Helm chart, we use the kubernetes.helm.v3.Chart resource.

    // Deploy the speedtest-tracker Helm chart into the LKE cluster. const speedtestTrackerChart = new k8s.helm.v3.Chart("speedtest-tracker", { chart: "speedtest-tracker", // Replace with the repository that hosts the speedtest-tracker Helm chart. // As of my knowledge cutoff in early 2023, there wasn't a widely recognized Helm chart for speedtest-tracker, // so you would need to find or create one, or replace this with a different chart. repositoryOpts: { repo: "http://<helm-chart-repo-url>/" }, version: "1.0.0", // Replace with the desired chart version namespace: "default", // Replace with the correct namespace, if different }, { provider });

    Step 3: Export resources

    After the Helm chart is deployed, you might want to export some resources, such as the URL to access the speedtest-tracker dashboard.

    // To get the LoadBalancer IP or DNS, we assume that the Helm chart creates a service of type LoadBalancer. // If this is not the case, this will need to be adjusted accordingly. const speedtestTrackerService = speedtestTrackerChart.getResource("v1/Service", "speedtest-tracker"); export const speedtestTrackerUrl = speedtestTrackerService.status.apply(status => status.loadBalancer.ingress[0].ip || status.loadBalancer.ingress[0].hostname);

    Now let me explain what each section does:

    • The kubeconfig variable should be set to your LKE kubeconfig which will allow Pulumi to communicate with your Kubernetes cluster.
    • We create a provider instance that knows how to interact with our Linode Kubernetes cluster using the kubeconfig file.
    • The kubernetes.helm.v3.Chart resource takes several arguments to specify the chart and its configuration, including the chart name, version, and repository where the Helm chart is hosted.
    • We specify a repository option that includes the URL where the chart is hosted. You will need to point it to the actual Helm chart repository for speedtest-tracker.
    • Finally, we export speedtestTrackerUrl, assuming that Helm chart creates a Service with a type of LoadBalancer. The exported URL will be the one through which you can access the speedtest-tracker on your browser. If the service is not of this type or is named differently, you will need to modify this accordingly.

    Please note that, as of my last update in early 2023, there was not a widely recognized Helm chart for speedtest-tracker. If that's still the case, you will either need to find an existing chart, generate one yourself, or use a placeholder value here.

    This program should be a good starting point for deploying the speedtest-tracker helm chart to a Linode Kubernetes Engine cluster. Please adjust the chart details (like version and repository) according to the actual speedtest-tracker helm chart you intend to use.