Deploy the lighthouse-validator helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the lighthouse-validator Helm chart on Azure Managed OpenShift Service using Pulumi, you need to perform these high-level steps:

Create an Azure Managed OpenShift cluster if you don't already have one.
Use Pulumi's Kubernetes provider to interact with the OpenShift cluster.
Deploy the lighthouse-validator Helm chart onto the cluster.

Each of these steps involves setting up and configuring specific resources using Pulumi’s TypeScript language. Below is a Pulumi program that will:

Set up an Azure Managed OpenShift cluster using the azure-native.containerservice.OpenShiftManagedCluster resource.
Configure a Kubernetes provider that targets the newly created OpenShift cluster.
Deploy the lighthouse-validator Helm chart using the kubernetes.helm.v3.Chart resource.

Before you run this program, ensure you have:

Installed Pulumi CLI and logged in.
Configured Azure credentials for Pulumi CLI.
Installed Node.js.
Created a new Pulumi project.

Here's the Pulumi program that accomplishes the task:

import * as pulumi from "@pulumi/pulumi";
import * as azure_native from "@pulumi/azure-native";
import * as k8s from "@pulumi/kubernetes";

// Step 1: Creating an Azure Managed OpenShift cluster. 
// Replace `<RESOURCE_GROUP_NAME>` and `<CLUSTER_NAME>` with your desired resource group and cluster names.
const openshiftCluster = new azure_native.containerservice.OpenShiftManagedCluster("openshiftCluster", {
    // Required properties
    resourceName: "<CLUSTER_NAME>",
    resourceGroupName: "<RESOURCE_GROUP_NAME>",
    location: "eastus", // Specify your Azure region
    openShiftVersion: "4.3", // Specify your desired OpenShift version

    // Optional properties might include:
    // plan, networkProfile, masterPoolProfile, agentPoolProfiles, etc.
    // See the Azure OpenShiftManagedCluster documentation for more details.
});

// Step 2: Setting up a Pulumi Kubernetes provider pointing to the cluster.
// Kubernetes provider uses the kubeconfig from the generated OpenShift cluster.
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: openshiftCluster.config.apply(config => JSON.stringify(config)),
});

// Step 3: Deploying the lighthouse-validator Helm chart.
// Replace `<HELM_CHART_VERSION>` with the version of the lighthouse-validator Helm chart you wish to deploy.
const lighthouseValidatorChart = new k8s.helm.v3.Chart("lighthouse-validator", {
    chart: "lighthouse-validator",
    version: "<HELM_CHART_VERSION>",
    // Helm chart's repository if it's not from the stable repository.
    fetchOpts: { 
        repo: "https://charts.your-repository.com/", 
    },
}, { provider: k8sProvider });

// Export the cluster's kubeconfig.
export const kubeconfig = openshiftCluster.config;

Make sure you replace <RESOURCE_GROUP_NAME>, <CLUSTER_NAME>, and <HELM_CHART_VERSION> with appropriate values.

What's happening in the program:

We define an Azure Managed OpenShift cluster and give it a name.
We then create a Pulumi Kubernetes provider which uses the output 'kubeconfig' from our OpenShift cluster, allowing Pulumi to communicate with our new cluster.
We use the Kubernetes provider to deploy the lighthouse-validator Helm chart by specifying its chart name and version. If the Helm chart is located in a custom repository, we include the fetchOpts with the repo URL.

After you set up your program, you can run it using the following commands in your CLI:

pulumi up

This command will provision the defined resources in your Azure cloud and deploy the Helm chart on the OpenShift cluster. Once the command runs successfully, you'll have the lighthouse-validator deployed on your OpenShift cluster.

Remember that Helm deployments are handled as a set of Kubernetes resources, so you'll be able to manage the application like any other Kubernetes application using kubectl commands or Pulumi's Kubernetes API.

Be aware that creating a new Azure Managed OpenShift cluster can take several minutes. Once the cluster is ready, Pulumi will automatically proceed with deploying the Helm chart.