1. Deploy the powerdns-pdns helm chart on Digital Ocean Kubernetes Service


    To deploy the powerdns-pdns Helm chart on Digital Ocean Kubernetes Service using Pulumi, you'll need to follow these steps:

    1. Set up a Kubernetes cluster in Digital Ocean: You'll create a Kubernetes cluster where your Helm chart will be deployed.
    2. Install the Pulumi Digital Ocean Provider: This package allows you to interact with Digital Ocean resources.
    3. Install the Pulumi Kubernetes Provider: This lets you work with the Kubernetes API within Pulumi, which you'll use to deploy Helm charts.
    4. Deploy the powerdns-pdns chart using the Helm provider: With the Kubernetes cluster ready and accessible, you'll use Pulumi's Helm provider to deploy the powerdns-pdns chart into your Kubernetes cluster.

    Here's how you can achieve this with Pulumi in TypeScript:

    import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Step 1: Create a new Digital Ocean Kubernetes cluster const cluster = new digitalocean.KubernetesCluster("pdns-cluster", { region: "nyc1", // You can choose a region that's closer to you version: "latest", // Specifies the version of Kubernetes to use nodePool: { name: "default", size: "s-2vcpu-2gb", // This is the size of the nodes, you can change it based on your needs nodeCount: 3, // The number of nodes in the node pool }, }); // Step 2: Use a kubeconfig file to interact with the cluster using Pulumi's Kubernetes provider // `apply` is a way to interact with the output of our cluster creation const kubeconfig = cluster.kubeConfigs[0].rawConfig.apply(c => c); // Export the kubeconfig to stdout export const kubeconfigOut = kubeconfig; // Step 3: Create a provider for deploying a Helm chart const k8sProvider = new kubernetes.Provider("k8s", { kubeconfig: kubeconfig, }); // Step 4: Deploy the powerdns-pdns Helm chart const powerdnsChart = new kubernetes.helm.v3.Chart("powerdns-pdns", { chart: "pdns", version: "9.0.0", // Specify the chart version you want to deploy fetchOpts: { repo: "https://charts.bitnami.com/bitnami", // The repository where the powerdns-pdns chart is hosted }, // You can specify any values.yaml configuration for the chart here. // For example: // values: { // serviceType: "LoadBalancer", // }, // Alternatively, you can leave `values` empty if you want to go with the defaults. }, { provider: k8sProvider }); // Export the status URL of the PowerDNS deployment // `powerdnsChart.getResourceProperty` lets us extract specific info about the deployed resources export const powerdnsStatusUrl = powerdnsChart.getResourceProperty("v1/Service", "powerdns-pdns", "status");

    Breaking down the program:

    • We use Pulumi's Digital Ocean package to create a Kubernetes cluster (digitalocean.KubernetesCluster). The cluster's region, version, and node pool size are specified as arguments.
    • The Digital Ocean Kubernetes Cluster's kubeconfig is exported for use with the Pulumi Kubernetes provider.
    • We create the Kubernetes provider with this kubeconfig (kubernetes.Provider), which will handle deploying resources to our new cluster.
    • The powerdns-pdns Helm chart is deployed using the kubernetes.helm.v3.Chart class.
    • values can be specified for custom configuration via the values field. The chart version and repository URL are specified using the version and fetchOpts.repo fields.
    • We export the status URL of the PowerDNS deployment for easy access to the service after it's deployed. The getResourceProperty function is a way to pull out specific details from the deployed resources in the Helm Chart.

    This Pulumi program defines the required infrastructure and deployment configuration as code, which can then be applied to the cloud provider (in this case, Digital Ocean) using the Pulumi CLI. You would execute pulumi up to deploy this configuration. After the application is deployed, Pulumi will output the kubeconfigOut and powerdnsStatusUrl, useful for interacting with your cluster and verifying the PowerDNS service.