Deploy the zookeeper-helm-chart helm chart on Rancher

To deploy a Helm chart on Rancher using Pulumi, you would generally follow these steps:

1. Set up a Pulumi project and configure it to use the Kubernetes provider, which will manage the resources in your Rancher cluster.
2. Install and configure Rancher, if it's not already set up.
3. Obtain the Zookeeper Helm chart details, such as its repository URL and chart version.
4. Use Pulumi's helm.v3.Chart resource to deploy the chart to your Rancher-managed Kubernetes cluster.

In this explanation, I'm assuming that we are managing a Kubernetes cluster through Rancher and we intend to deploy the Zookeeper Helm chart onto this Kubernetes cluster.

Below is a TypeScript Pulumi program that accomplishes this:

import * as rancher2 from "@pulumi/rancher2";
import * as k8s from "@pulumi/kubernetes";
import * as pulumi from "@pulumi/pulumi";

const name = "zookeeper";

// Create a Rancher2 cluster (if not already existing)
// This is a placeholder for the cluster and assumes you have a Rancher Kubernetes cluster setup
const cluster = new rancher2.Cluster("cluster", {/* ... cluster configurations ... */});

// Initialize the Pulumi Kubernetes Provider using the kubeconfig from the Rancher2 cluster
const k8sProvider = new k8s.Provider("k8s", {
    kubeconfig: cluster.kubeConfig,
});

// Create a namespace for Zookeeper if required
const zookeeperNamespace = new k8s.core.v1.Namespace(name, {
    metadata: { name: "zookeeper-ns" }
}, { provider: k8sProvider });

// Deploy Zookeeper Helm chart using the Kubernetes provider
const zookeeperChart = new k8s.helm.v3.Chart(name, {
    chart: "zookeeper",
    version: "X.Y.Z", // Replace with the desired chart version
    fetchOpts: {
        repo: "http://my-helm-chart-repo/", // Replace with the Helm chart repository URL where Zookeeper chart is located
    },
    namespace: zookeeperNamespace.metadata.name,
}, { provider: k8sProvider });

// Export the Zookeeper service endpoint
export const zookeeperEndpoint = pulumi.interpolate`http://${zookeeperChart.getResourceProperty("v1/Service", `${name}-zookeeper`, "status").apply(status => status.loadBalancer.ingress[0].ip)}:2181`;

In this program:

• We import the required Pulumi packages. The Rancher2 provider (@pulumi/rancher2) handles Rancher-specific resources. The Kubernetes provider (@pulumi/kubernetes) manages resources on any Kubernetes cluster. Pulumi SDK (@pulumi/pulumi) is used for coordinating with Pulumi's state, outputs, and config.
• For the Rancher2 cluster, you need to replace the placeholder comment with your actual Rancher Kubernetes cluster configuration.
• Once we have the Rancher cluster, we initialize the Kubernetes provider with the kubeconfig from the Rancher2 cluster.
• A Kubernetes namespace for Zookeeper is created to keep resources organized and segregated.
• We then declare a helm.v3.Chart resource with the name "zookeeper," specifying the chart's name, version, and its repository location. This will fetch and install the Zookeeper Helm chart into the namespace we created in the previous step.
• Lastly, we export the endpoint of the Zookeeper service. This assumes that the Zookeeper Helm chart exposes a service of type LoadBalancer through which Zookeeper is accessible.

Make sure to replace "X.Y.Z" with the actual version of the Zookeeper Helm chart you wish to install, and replace http://my-helm-chart-repo/ with the URL of the Helm chart repository.

You can run this Pulumi program using the Pulumi CLI. OnInitiate a Pulumi stack, which is an isolated environment for your infrastructure resources (for example, using pulumi stack init), and then deploy your infrastructure with pulumi up. The pulumi up command will show you a preview of the resources that will be created and prompt you for confirmation before proceeding to make any changes.