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


    To deploy the tyk-gateway Helm chart on a Linode Kubernetes Engine (LKE) cluster using Pulumi, we will use the @pulumi/kubernetes package. This package allows us to interact with Kubernetes resources within our Pulumi program.

    We will perform the following steps to deploy the Helm chart:

    1. Create a new Kubernetes cluster: Using Pulumi, we will set up a new LKE cluster. Linode currently does not have a native Pulumi provider, but we can use the Linode CLI or Terraform Provider to create the cluster outside of Pulumi and then use Pulumi to interact with it.

    2. Set up a Kubernetes provider: Once we have the cluster, we'll need to configure a Kubernetes provider to interact with it. This entails setting up the necessary configuration to connect to our LKE cluster, including specifying the kubeconfig file.

    3. Deploy the tyk-gateway Helm chart: With our Kubernetes provider configured, we can use the Chart resource from the @pulumi/kubernetes/helm/v3 module to deploy the tyk-gateway Helm chart.

    Below is a detailed Pulumi program written in TypeScript that accomplishes the deployment of the tyk-gateway Helm chart on an LKE cluster:

    import * as k8s from '@pulumi/kubernetes'; import * as pulumi from '@pulumi/pulumi'; // Step 1: Use the `linode-cli` command or Terraform to create a Linode Kubernetes Engine cluster // This step assumes you have already set up the LKE cluster outside of this Pulumi program. // Please refer to Linode's documentation for creating a cluster: // https://www.linode.com/docs/kubernetes/deploy-and-manage-a-cluster-with-linode-kubernetes-engine-a-tutorial/ // Step 2: Set up the Kubernetes provider to interact with the LKE cluster // The kubeconfig needed to configure the provider can be fetched from the Linode Cloud Console. const kubeConfig = pulumi.output('<KUBECONFIG_CONTENT>'); const k8sProvider = new k8s.Provider('lkeProvider', { kubeconfig: kubeConfig, }); // Step 3: Deploy the `tyk-gateway` Helm chart // The Helm chart will be deployed to the LKE cluster using the above-created provider. const tykGatewayChart = new k8s.helm.v3.Chart('tyk-gateway', { // Specify the chart details. chart: 'tyk-headless', version: '<CHART_VERSION>', // Replace with the desired chart version fetchOpts: { repo: 'https://helm.tyk.io/public/helm/charts/', // The repository where the chart is located }, // Include any custom values you wish to override the default chart values. values: { // Place your custom values here, for example: // namespace: 'tyk', // The namespace where the chart should be deployed (optional) }, }, { provider: k8sProvider }); // Export the deployment URL by fetching the LoadBalancer service that Tyk creates. // Make sure that your chart values include a LoadBalancer service type for the gateway. export const deploymentUrl = tykGatewayChart.getResourceProperty('v1/Service', 'tyk-gateway', 'status') .apply(status => status.loadBalancer.ingress[0].ip || status.loadBalancer.ingress[0].hostname);

    This program illustrates the steps for deploying a Helm chart on a Kubernetes cluster. Replace <KUBECONFIG_CONTENT> with the actual content of your kubeconfig file for the LKE cluster and <CHART_VERSION> with the version of 'tyk-gateway' you wish to deploy. The export statement at the end of the file provides an endpoint to access the deployed Tyk Gateway once it is up and running.

    Make sure you have Pulumi and Helm installed, along with access to a Linode account. You will also need to create the Kubernetes cluster on LKE using either the Linode CLI or the Linode Terraform provider, and then provide the kubeconfig to pulumi to connect to the newly created cluster.

    You run this Pulumi program by executing pulumi up, which will review the deployment plan and confirm the changes you want to apply to the cluster. After reviewing, confirm the deployment, and Pulumi will provision the necessary resources on your LKE cluster.