Deploy the ts-server helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the `ts-server` Helm chart on an Azure Managed OpenShift Service, we will follow a two-stage process using Pulumi with Azure Native and Kubernetes providers. First, we will set up an Azure Managed OpenShift cluster. Next, we will deploy the Helm chart to this managed cluster.

### Prerequisites
Before you start, you will need to have Pulumi installed and configured with your Azure credentials. This process assumes you have an Azure subscription, and you have already installed and configured the Pulumi CLI with your Azure credentials.

### Part 1: Creating the Managed OpenShift Cluster
We will be using the `azure-native.containerservice.OpenShiftManagedCluster` resource to create a Managed OpenShift cluster in your Azure account. This resource represents a managed OpenShift cluster in Azure Container Service and allows you to configure details such as the cluster version, the number of master and agent nodes, and the virtual network settings.

### Part 2: Deploying the Helm Chart
Once the OpenShift cluster is up and running, we will deploy the `ts-server` Helm chart using the `kubernetes.helm.v3.Chart` resource from Pulumi's Kubernetes provider. This resource allows us to deploy Helm charts to a Kubernetes cluster.

Here's the TypeScript program that performs both of these actions:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as azureNative from "@pulumi/azure-native";
import * as k8s from "@pulumi/kubernetes";
import * as helm from "@pulumi/kubernetes/helm/v3";

// Part 1: Set up Azure Managed OpenShift Cluster
const resourceName = "myManagedOpenShiftCluster";
const resourceGroupName = "myResourceGroup";
const location = "eastus"; // Azure location to deploy the resources
const openShiftVersion = "4.3"; // Specify your OpenShift version

const managedCluster = new azureNative.containerservice.OpenShiftManagedCluster(resourceName, {
    // Required parameters
    resourceName: resourceName,
    resourceGroupName: resourceGroupName,
    location: location,
    openShiftVersion: openShiftVersion,

// Optional parameters
    // Feel free to modify these options according to your cluster needs
    agentPoolProfiles: [{
        name: "agentpool",
        count: 3, // The number of agent nodes
        vmSize: "Standard_D4s_v3", // The size of the virtual machine
        osType: "Linux", // Operating system type
        role: "compute", // The role of the nodes - "compute" for worker nodes
    }],
    masterPoolProfile: {
        count: 3,
        vmSize: "Standard_D4s_v3",
    },
    networkProfile: {
        vnetCidr: "10.0.0.0/8",
    },
});

// Export the OpenShift cluster name
export const clusterName = managedCluster.name;

// Part 2: Deploy Helm Chart to the OpenShift Cluster
// To deploy the Helm Chart, you will need to configure the Pulumi Kubernetes
// provider to use the newly created OpenShift cluster credentials.

// This could include setting up the kubeconfig to point to OpenShift
// as well as any other necessary authentication steps.

// Once the setup is complete, you can use the `helm.Chart` resource.
const tsServerChart = new helm.Chart("tsServerChart", {
    // Replace `chart` and `version` with the chart details of `ts-server`
    chart: "ts-server",
    version: "1.0.0", // Replace with the chart's version you wish to deploy
    namespace: "default", // Specify the namespace if needed
    // Fetch the chart from a specific repository - replace with the ts-server Helm repository
    fetchOpts: {
        repo: "https://example.com/helm-charts", // Specify the actual Helm chart repository
    },
}, { provider: /* Specify the Kubernetes provider */ });

// Export the Helm chart deployment status
export const helmDeploymentStatus = tsServerChart.status;
```

The above program performs the following actions:

1. **Create Managed OpenShift Cluster**: We define a `managedCluster` using `azureNative.containerservice.OpenShiftManagedCluster`. We specify the location and the version for the OpenShift cluster along with the master and worker nodes configuration.

2. **Export Cluster Name**: After creating the cluster, we export its name which will be helpful for future references in the Pulumi stack.

3. **Configure Kubernetes Provider**: Before deploying the Helm chart, we need to set up proper authentication with the managed OpenShift cluster. We would use the cluster's kubeconfig for this purpose. Note that this step is represented in the comments, as it involves configuring the Pulumi Kubernetes provider with credentials obtained from the created OpenShift cluster.

4. **Deploy Helm Chart**: A `helm.Chart` resource is used to deploy the `ts-server` chart to the OpenShift cluster. We specify the chart name, version, and the namespace to deploy in.

5. **Export Helm Deployment Status**: Finally, we export the status of the Helm chart deployment. This will give us information on whether the deployment was successful.

Don't forget to replace placeholder values like `https://example.com/helm-charts` with actual information specific to the `ts-server` Helm chart you wish to deploy.

After you've set up the program, run it using the standard Pulumi CLI commands:

```shell
pulumi up
```

This command will show you a preview of the resources that will be created and prompt you for confirmation before proceeding with the deployment.

Remember, every time you modify your Pulumi program, you should run `pulumi up` again to deploy the changes to your infrastructure.