1. Deploy the prometheus-domain-exporter helm chart on Rancher


    To deploy the prometheus-domain-exporter Helm chart on a Rancher-managed Kubernetes cluster using Pulumi, you will need to perform several steps. First, ensure that you have a Rancher Kubernetes cluster up and running, and you are able to connect to it using kubectl.

    Next, you will use Pulumi's Rancher 2 provider to configure the necessary Helm chart on the cluster. The process includes defining the Rancher 2 provider, finding the correct Helm chart, and then deploying it with appropriate values.

    Below is a detailed TypeScript program that uses Pulumi to deploy the prometheus-domain-exporter Helm chart to a Rancher Kubernetes cluster. I will walk you through the program step by step.

    import * as pulumi from '@pulumi/pulumi'; import * as k8s from '@pulumi/kubernetes'; import * as rancher2 from '@pulumi/rancher2'; // Initialize a Pulumi program by creating a new Rancher 2 provider instance. // This will allow us to interact with the Rancher Kubernetes cluster. // Here you need to replace the `apiUrl` and `tokenKey` with your actual Rancher API URL and access token. const rancherProvider = new rancher2.Provider('rancher', { apiUrl: 'https://<RANCHER_API_URL>', tokenKey: 'token-<RANCHER_ACCESS_KEY>:<RANCHER_SECRET>', }); // Create a Kubernetes provider instance using the Rancher2 provider configuration. // This provider will be used to interact with Kubernetes resources in the Rancher cluster. const k8sProvider = new k8s.Provider('k8s', { kubeconfig: rancherProvider.kubeconfig.apply(JSON.stringify), }); // Define the Kubernetes namespace where you want to deploy the Helm chart. // If your namespace doesn't already exist, you can uncomment the code below to create it. /* const namespace = new k8s.core.v1.Namespace('namespace', { metadata: { // Replace with the name of the namespace name: 'prometheus-exporter', }, }, { provider: k8sProvider }); */ // Now we define and deploy the Helm chart for Prometheus Domain Exporter. // The `prometheus-domain-exporter` chart will be deployed using its full name and repository URL. const prometheusDomainExporterChart = new k8s.helm.v3.Chart('prometheus-domain-exporter', { chart: 'prometheus-domain-exporter', version: 'x.y.z', // Specify the chart version you want to deploy fetchOpts: { // Replace with the correct repository where the chart is located repo: 'https://<REPOSITORY_URL>', }, // Specify the values for the Helm chart as needed values: { // Chart specific values go here // For instance, you can set the domain name array which domain_exporter should check: // domains: ['example.com', 'anotherdomain.com'] }, // Uncomment the line below if you want to deploy into the created namespace above // namespace: namespace.metadata.name, }, { provider: k8sProvider }); // To make the Helm chart's deployment URL accessible, we can export it. // In this case, if the service type is LoadBalancer, we can grab the endpoint. export const domainExporterUrl = prometheusDomainExporterChart.getResourceProperty( 'v1/Service', // Replace with the correct API version and kind 'prometheus-domain-exporter-service', // Replace with the correct service name deployed by your helm chart 'status', ).apply(status => status.loadBalancer.ingress[0].hostname || status.loadBalancer.ingress[0].ip);

    Before running this program, you need to replace placeholder values with actual data from your Rancher setup:

    • <RANCHER_API_URL>: The URL to your Rancher API.
    • token-<RANCHER_ACCESS_KEY>:<RANCHER_SECRET>: Your Rancher access credentials (key and secret).
    • x.y.z: Specify the version of the prometheus-domain-exporter Helm chart you wish to use.
    • <REPOSITORY_URL>: The Helm repository URL where the prometheus-domain-exporter chart is hosted.
    • prometheus-exporter: Replace this with the actual Kubernetes namespace you want the chart to be deployed into.
    • prometheus-domain-exporter-service: The name of the Kubernetes Service resource created by the Helm chart, which might differ based on the chart's configuration.

    After replacing these values with your own, you can execute the program with the Pulumi CLI tools:

    1. Install Pulumi CLI and set up the necessary providers.
    2. Run pulumi up to deploy the resources defined in the code to your Rancher-managed Kubernetes cluster.

    This code defines the necessary resources and configurations to deploy the Prometheus Domain Exporter Helm chart into a Rancher-managed Kubernetes cluster. It uses Pulumi's programming model to define infrastructure as code, providing a repeatable and versionable deployment method.