Deploy the signal-cli-rest-api helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the signal-cli-rest-api Helm chart on Azure Managed OpenShift Service, you need to take the following steps:

Set Up Azure Managed OpenShift: You will need to create an instance of Azure Managed OpenShift, known as Azure Red Hat OpenShift (ARO), which is a turnkey application platform that is fully managed by Red Hat and Microsoft.
Install the Helm Chart on OpenShift: Helm is a package manager for Kubernetes, which you'll use to deploy the signal-cli-rest-api chart to your OpenShift cluster.

Here's how you can accomplish this with Pulumi:

Detailed Steps and Pulumi TypeScript Program

First, ensure you have the necessary prerequisites:

Pulumi CLI installed and configured for Azure.
Azure CLI installed and logged in.
Helm CLI installed (for local commands if necessary).

Below is a Pulumi program in TypeScript that demonstrates how you might create an Azure Managed OpenShift Service and then deploy the signal-cli-rest-api Helm chart onto it.

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

// Step 1: Create the Azure Managed OpenShift cluster.
// Replace these variables with actual values for resourceGroupName, clusterName, etc.
const resourceGroupName = "myResourceGroup";
const clusterName = "myOpenShiftCluster";
const location = "eastus"; // Choose the appropriate Azure region

// Create an Azure Managed OpenShift cluster (ARO).
const cluster = new azure_native.redhatopenshift.OpenShiftCluster(clusterName, {
    resourceGroupName: resourceGroupName,
    resourceName: clusterName,
    location: location,
    // Appropriately define the network, master, and worker profiles as necessary.
    // More configurations might be required depending on the specific needs.
});

// Export the OpenShift managed cluster's kubeconfig.
export const kubeconfig = cluster.kubeconfig;

// Step 2: Use the Helm chart to deploy signal-cli-rest-api onto the OpenShift cluster.
// For the helm chart, you might need to specify chart version or additional values.

// Initialize a new Pulumi Kubernetes provider using the kubeconfig from the created cluster.
const k8sProvider = new k8s.Provider("openshiftK8s", {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Deploy the signal-cli-rest-api Helm chart.
const signalCliChart = new k8s.helm.v3.Chart("signal-cli-rest-api", {
    chart: "signal-cli-rest-api",
    version: "latest", // Select your desired chart version
    fetchOpts:{
        repo: "http://<helm-repo-url>" // Specify the Helm repository URL if it's a third-party chart
    },
    values: {
        // Provide any specific values needed for the signal-cli-rest-api chart here.
    },
}, { provider: k8sProvider });

// Step 3: Export any necessary endpoints or status information.
// For example, if signal-cli-rest-api provides a service of type LoadBalancer, you might want to export the endpoint.
export const signalCliServiceEndpoint = signalCliChart.getResource("v1/Service", "signal-cli-rest-api").status.loadBalancer.ingress[0].hostname;

Understanding the Program

The azure_native.redhatopenshift.OpenShiftCluster resource is used to create an instance of Azure's Managed OpenShift, where you provide details such as location, resourceGroupName, and resourceName along with the specifics for networking and node specifics necessary for your deployment.
The kubeconfig is exported from the OpenShift cluster, which we'll use to configure the Kubernetes provider.
The k8s.Provider is instantiated with the exported kubeconfig to interact with the Kubernetes cluster deployed on Azure.
The k8s.helm.v3.Chart resource deploys the signal-cli-rest-api Helm chart into your Kubernetes cluster. You will need to set the chart property to the correct chart name and also specify the Helm repository URL if the chart is not in one of the public repositories available to Helm.
We export signalCliServiceEndpoint to provide an easy endpoint to access the signal-cli-rest-api service from outside the cluster if the service type used exposes an external IP. If the chart uses a different type of service, such as ClusterIP, you might configure Ingress resources or OpenShift Routes to expose the service externally.

This program assumes that the signal-cli-rest-api Helm chart is available in a Helm repository, and you might need to replace http://<helm-repo-url> with the actual URL to the Helm repository where the chart is hosted.

Please ensure that you understand the configuration options for the Helm chart you plan to deploy, as charts may have configurable values that can be set to customize their behavior. These values can be provided in the values section of the k8s.helm.v3.Chart resource.