1. Deploy the kong-authorizer helm chart on Digital Ocean Kubernetes Service


    Deploying a Helm chart on a Digital Ocean Kubernetes Service with Pulumi involves several steps: setting up a Kubernetes cluster, installing the Helm chart, and configuring any necessary Kubernetes resources. We'll go through the process using Pulumi's TypeScript programming language.

    Here's a breakdown of what we'll be doing:

    1. Creating a Kubernetes cluster on Digital Ocean: This is done using the digitalocean.KubernetesCluster resource. You are required to provide a name, region, version, and node pool details at a minimum. For this example, we'll create a simple cluster with just one node pool.

    2. Installing the Helm chart: After the cluster is provisioned, we use the kubernetes.helm.v3.Chart resource to deploy the kong-authorizer chart. This resource lets you manage Helm chart deployments just as you would with the helm CLI tool, but with the benefits of infrastructure as code practices.

    First, ensure you have the Digital Ocean and Kubernetes Pulumi providers installed:

    pulumi plugin install resource digitalocean v4.22.0 pulumi plugin install resource kubernetes v4.4.0

    Now let's set up the Pulumi program:

    import * as pulumi from "@pulumi/pulumi"; import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Create a Digital Ocean Kubernetes cluster const cluster = new digitalocean.KubernetesCluster("kong-authorizer-cluster", { region: digitalocean.Regions.NYC3, // You can choose the region that is closer to your users version: "latest", // Specify your desired Kubernetes version nodePool: { name: "kong-authorizer-pool", size: digitalocean.DropletSlugs.DropletS2VCPU2GB, // This is the size of the node. You can select as per your requirement nodeCount: 1, // Number of nodes in the node pool }, }); // Export the cluster's kubeconfig export const kubeconfig = cluster.kubeConfigs.apply(kubeConfig => kubeConfig[0].rawConfig); // Using the resulting kubeconfig, install a Helm chart for Kong Authorizer const kongAuthorizer = new kubernetes.helm.v3.Chart("kong-authorizer", { chart: "kong-authorizer", // You would specify the repository here if this chart is hosted on a Helm repo // e.g., repo: "https://charts.example.com/" values: { // Specify your Helm chart values here // These are dependent on the 'kong-authorizer' chart you're using }, }, { provider: new kubernetes.Provider("kong-authorizer-provider", { kubeconfig: kubeconfig }) }); // Export the endpoint of the kong-authorizer service export const kongAuthorizerEndpoint = kongAuthorizer.getResource("v1/Service", "kong-authorizer", "kong-authorizer").status.apply(status => status.loadBalancer.ingress[0].ip);

    Explanation of the code:

    • digitalocean.KubernetesCluster: This resource provisions a Kubernetes cluster in the specified Digital Ocean region. We named the cluster kong-authorizer-cluster and the node pool kong-authorizer-pool. The version selects the Kubernetes version; using latest will provision the cluster with the latest stable version supported by Digital Ocean.

    • cluster.kubeConfigs: This attribute of the KubernetesCluster resource outputs the kubeconfig needed to communicate with the cluster. We're exporting this so it can be used to configure the Kubernetes provider for Helm.

    • kubernetes.helm.v3.Chart: We're deploying the kong-authorizer chart onto the Kubernetes cluster we created. The values object should contain configuration specific to the Helm chart you're deploying. If the chart requires being fetched from a specific Helm repository, you would include the repo field with the repository URL.

    • kubernetes.Provider: This is a Pulumi Kubernetes provider that uses the kubeconfig of the created cluster. We're associating this provider with our Helm chart so that it installs on the correct cluster.

    • kongAuthorizerEndpoint: We're exporting an IP address which is the endpoint through which you can access the deployed kong-authorizer. This assumes that the Helm chart creates a LoadBalancer service.

    You should adjust the values configuration to match whatever configuration parameters the kong-authorizer chart requires. This might include things like custom resource definitions (CRDs), service type, and so on.

    After writing and saving your index.ts file, navigate to your Pulumi project directory in your terminal, and run pulumi up to execute the Pulumi program. This will create the cluster and deploy the Helm chart, managing the entire operation as a single deployment.