Deploy the u4a-component 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 follow these steps:

1. Set up an Azure Managed OpenShift cluster using the Azure Native provider.
2. Deploy the Helm chart onto the OpenShift cluster using the Kubernetes provider's Helm support.

Here's an overview of how we will accomplish this:

- We'll use `azure-native.containerservice.OpenShiftManagedCluster` to create a managed OpenShift cluster on Azure.
- After the OpenShift cluster is available, we'll configure the Kubernetes provider to target this cluster.
- Then, we'll use `kubernetes.helm.v3.Chart` to deploy the specified Helm chart to the OpenShift cluster.

Make sure you have installed Pulumi and configured your Azure credentials before running the Pulumi program. You may refer to Pulumi documentation to get these prerequisites in place.

Below is a detailed Pulumi program in TypeScript to deploy the `u4a-component` Helm Chart to an Azure Managed OpenShift service.

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

const config = new pulumi.Config();

// Replace the following values with your own to configure the OpenShift cluster
const clusterName = config.require("clusterName");
const resourceGroupName = config.require("resourceGroupName");
const location = config.require("location");
const openshiftVersion = config.require("openshiftVersion");
const helmChartVersion = config.require("helmChartVersion");

const main = async () => {
  // Create an Azure resource group
  const resourceGroup = new azure_native.resources.ResourceGroup("resourceGroup", {
    resourceGroupName: resourceGroupName,
    location: location,
  });

// Deploy an Azure Managed OpenShift cluster
  const openshiftCluster = new azure_native.containerservice.OpenShiftManagedCluster("myOpenShiftCluster", {
    resourceName: clusterName,
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    openShiftVersion: openshiftVersion,
    // Other necessary OpenShift Managed Cluster configurations go here
    // ...
  });

// Create a Kubernetes provider instance that uses the kubeconfig from the newly created OpenShift cluster
  const k8sProvider = new kubernetes.Provider("k8sProvider", {
    kubeconfig: openshiftCluster.kubeconfig.apply(kubeconfig => kubeconfig),
  });

// Deploy the Helm Chart onto our OpenShift cluster
  const helmChart = new kubernetes.helm.v3.Chart("u4aComponent", {
    chart: "u4a-component",
    version: helmChartVersion,
    namespace: "default", // Specify the namespace if not 'default'
    // Specify any values you require for your chart
    values: {
      // Any necessary Helm values go here
      // ...
    },
  }, { provider: k8sProvider });

// Exports can be used to output the resulting Helm release status
  return {
    helmReleaseStatus: helmChart.status,
  };
};

main().then(exports => {
  for (const [key, value] of Object.entries(exports)) {
    pulumi.export(key, value);
  }
});
```

Please make sure to replace placeholder values like `resourceGroupName`, `clusterName`, `location`, `openshiftVersion`, and `helmChartVersion` with actual values appropriate for your deployment. The `kubeconfig` is obtained from the Azure Managed OpenShift cluster resource, and it configures the Pulumi Kubernetes provider so that subsequent resources are deployed into the OpenShift cluster.

You will also need to define your own set of values for the Helm chart you want to deploy by modifying the `values` object within the `helmChart` resource if your Helm chart requires any specific configuration.

After writing and saving this program in a file (e.g., `index.ts`), you should run it using the Pulumi CLI:
- Navigate to the directory containing your `index.ts` file.
- Run `pulumi up` to create the infrastructure and deploy the Helm chart.

Please take note that creating a managed OpenShift cluster can take a significant amount of time, and you should monitor the output of the Pulumi CLI to check the progress and status of the infrastructure provisioning and Helm chart deployment.