1. Deploy the tyk-stack helm chart on Linode Kubernetes Engine


    To deploy the tyk-stack Helm chart on Linode Kubernetes Engine using Pulumi, we will perform several steps:

    1. Set up the Linode Kubernetes Engine (LKE) cluster.
    2. Configure Pulumi to use the Linode provider.
    3. Deploy the tyk-stack Helm chart to the LKE cluster.

    For step 1, you will need to have an account with Linode and have the Linode API token available. The token will be used by Pulumi to create and manage resources in your Linode account. Ensure that your Linode CLI is also configured with this token.

    For step 2, Pulumi needs to be able to interact with the Linode Kubernetes Engine. We will use the linode provider to manage the LKE cluster creation.

    In step 3, we use the helm.sh/v3.Chart class from the Pulumi Kubernetes provider to deploy the tyk-stack Helm chart. Helm charts are a great way to deploy and manage applications in Kubernetes, and Pulumi can work with Helm charts directly.

    Here's a Pulumi TypeScript program that demonstrates this process:

    import * as linode from "@pulumi/linode"; import * as k8s from "@pulumi/kubernetes"; // Step 1: Create a new Linode Kubernetes Engine (LKE) cluster. const cluster = new linode.LkeCluster("tyk-stack-cluster", { k8sVersion: "1.21", // Specify your desired Kubernetes version region: "us-central", // Specify the region where the cluster should be hosted nodePools: [{ type: "g6-standard-1", // Choose the type of nodes to use count: 1, // Specify the number of nodes }], }); // Step 2: Define the provider to connect to the created cluster. // We use the kubeconfig provided by the LKE cluster resource. const provider = new k8s.Provider("lke-provider", { kubeconfig: cluster.kubeconfigRaw, }); // Step 3: Deploy the tyk-stack Helm chart. const tykStackChart = new k8s.helm.v3.Chart("tyk-stack", { chart: "tyk-headless", // The name of the chart, make sure this is the correct chart name. version: "0.9.0", // Specify the chart version // Assuming that you are installing this chart in the default namespace. // If you need to specify a namespace, you can add `namespace: "<name>"` to this args object. fetchOpts:{ repo: "https://helm.tyk.io/public/helm/charts/", // Tyk Helm chart repository }, }, { provider: provider }); // Use the LKE provider for deploying the chart. // Export the kubeconfig to access the cluster with kubectl and other Kubernetes tools. export const kubeconfig = cluster.kubeconfigRaw;

    This program does the following:

    • It creates a new Kubernetes cluster on Linode using the linode.LkeCluster resource.
    • The cluster is configured with one node of type g6-standard-1, but you can adjust these settings to fit your needs.
    • A Pulumi k8s.Provider is instantiated pointing to our created LKE cluster; this provider is used for deploying Kubernetes resources.
    • Then it proceeds to deploy the tyk-stack Helm chart from Tyk's public Helm chart repository.
    • The kubeconfig of the LKE is exported so you can interact with the cluster using kubectl or other Kubernetes tools.

    Make sure to install the necessary Pulumi providers:

    pulumi plugin install resource linode v1.2.0 pulumi plugin install resource kubernetes v4.4.0

    Before running the Pulumi program:

    • Ensure Pulumi CLI is installed.
    • Log in to the Pulumi service.
    • Set up a new Pulumi project or use an existing one.
    • You should have @pulumi/linode and @pulumi/kubernetes packages in your package.json.

    To run the Pulumi program, execute the following commands in your terminal:

    pulumi up # To preview and deploy changes

    After confirming the deployment, Pulumi will provision the resources and apply the Helm chart to your Linode Kubernetes cluster. You can access your new Tyk API management installation by fetching the external IP or domain and configuring DNS accordingly.

    Remember to replace the "1.21" and "g6-standard-1" with the Kubernetes version and node type that best suits your deployment requirements.

    If you're new to Pulumi, you should check out the Pulumi Getting Started Guide and the Linode Provider documentation for more detailed information and a deeper understanding of how Pulumi works.