Deploy the xline helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy a Helm chart on Azure Managed Openshift Service using Pulumi, we need to set up the Azure infrastructure and then deploy the Helm chart onto it. For our current goal, we'll be performing two main tasks:

Provisioning an Azure Red Hat OpenShift cluster using the azure-native.redhatopenshift.OpenShiftCluster resource.
Deploying the "xline" Helm chart to the provisioned cluster using the kubernetes.helm.sh/v3.Chart resource.

Below is a detailed Pulumi program written in TypeScript that performs these tasks.

Prerequisites

Before running the Pulumi program, ensure that:

You've installed Pulumi CLI and setup the Azure provider correctly.
You've installed kubectl and have it configured to manage your Kubernetes clusters.
You've installed Node.js and the @pulumi/kubernetes and @pulumi/azure-native packages.

Program Explanation

OpenShift Cluster Provisioning: We start with setting up an Azure Red Hat OpenShift (ARO) cluster using the OpenShiftCluster resource. This is a managed Kubernetes service provided by Azure that abstracts away the underlying infrastructure handling.
Helm Chart Deployment: Once our cluster is up and running, we make use of the Pulumi's Kubernetes provider to deploy the Helm chart. We use a generic Chart resource from the @pulumi/kubernetes package to deploy "xline" into our ARO cluster.

Let's proceed with the Pulumi TypeScript program:

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

// Create an Azure Resource Group
const resourceGroup = new azure.resources.ResourceGroup("xlineResourceGroup");

// Provision an Azure Red Hat OpenShift cluster
const openshiftCluster = new azure.redhatopenshift.OpenShiftCluster("xlineOpenShiftCluster", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    clusterProfile: {
        pullSecret: "<Pull Secret>",
        domain: "xline.openshiftcluster",
        version: "4.3.0", // Specify the version you want to deploy
    },
    masterProfile: {
        vmSize: "Standard_D8s_v3", // Specify the VM size for the master nodes
    },
    workerProfiles: [{ // Specify the VM size and number of VMs for the worker nodes
        name: "worker",
        vmSize: "Standard_D4s_v3",
        count: 3, // Number of worker nodes
    }],
    // ... (Other configurations such as network profile, authentication, etc.)
});

// Setting up a Kubernetes provider to interact with the newly created OpenShift cluster
const k8sProvider = new k8s.Provider("openshiftK8sProvider", {
    kubeconfig: openshiftCluster.kubeconfig,
});

// Deploy the "xline" Helm chart
const xlineHelmChart = new k8s.helm.v3.Chart("xlineChart", {
    repo: "xlineRepo", // Helm repo where the "xline" chart is located, needs to be pre-configured or publicly available.
    chart: "xline",
    // values for the Helm chart, as needed
    values: {
        // Provide any configuration for the "xline" chart here
    },
}, { provider: k8sProvider });

// Export the public IP to access the xline service
const xlineService = xlineHelmChart.getResource("v1/Service", "xlineService");
export const xlineServiceIP = xlineService.status.loadBalancer.ingress[0].ip;

In this program, we define:

A resource group to hold our Azure resources.
The ARO cluster including the OpenShift version, VM sizes for master and worker nodes, and required configurations.
The k8s provider that utilizes the kubeconfig from our ARO cluster to manage Kubernetes resources.
The Helm chart deployment using the Chart resource, where you can specify configurations specific to "xline".
Export of the external IP of the service that gets created as part of the helm chart, so that you can access your application.

Replace <Pull Secret> with your OpenShift pull secret that you can obtain from Red Hat OpenShift Cluster Manager.

Once this TypeScript program is executed with pulumi up, it will provision the necessary infrastructure on Azure and deploy the xline Helm chart onto the resulting OpenShift cluster. You can access your deployed application using the exported xlineServiceIP.

Please refer to Pulumi documentation (Azure Red Hat OpenShift and Helm Charts) for more details on the configuration options and deployment strategies.