Deploy the twistlock-defender helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the Twistlock Defender Helm chart on an Azure Managed OpenShift Service, you need to follow these steps:

1. Create an Azure Managed OpenShift Service cluster.
2. Install the Helm chart on your OpenShift cluster.

Here's what each step entails and the Pulumi program in TypeScript that you will use to execute these steps.

### Step 1: Create an Azure Managed OpenShift Service cluster

You must first provision an Azure Red Hat OpenShift Cluster. This can be done using the `azure-native.redhatopenshift.OpenShiftCluster` resource from Pulumi's `azure-native` package. This resource will provision the necessary OpenShift cluster with the configuration that you provide.

#### Step 2: Install the Helm chart

After the OpenShift cluster is up and running, you will use Pulumi's Helm support to deploy the Twistlock Defender Helm chart into the cluster.

The Twistlock Defender Helm chart is not provided as a standard Helm chart in the Pulumi Registry, but you can use the `kubernetes.helm.v3.Chart` resource to deploy a Helm chart from a specific repository or location.

Below is a Pulumi program that combines these steps. Before running it, make sure you have the prerequisites:

- Pulumi CLI installed.
- An Azure account with the credentials configured where Pulumi can access.
- The Kubernetes and Azure Native Pulumi providers installed.
- Helm and kubectl installed on the machine running Pulumi for chart deployment.

Now, here's the TypeScript Pulumi program that accomplishes the deployment:

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

// A new resource group to contain the OpenShift cluster and related resources
const resourceGroup = new azure_native.resources.ResourceGroup("myResourceGroup");

// Provision an OpenShift Cluster.
const openshiftCluster = new azure_native.redhatopenshift.OpenShiftCluster("myOpenShiftCluster", {
    resourceGroupName: resourceGroup.name,
    // Define other necessary OpenShiftCluster properties here
});

// Once the cluster is provisioned, we can use its kubeconfig to configure the Kubernetes provider
const provider = new k8s.Provider("openshiftProvider", {
    kubeconfig: openshiftCluster.kubeConfig.raw,
});

// Deploy the Twistlock Defender helm chart
const twistlockDefenderChart = new k8s.helm.v3.Chart("twistlockDefender", {
    chart: "twistlock-defender",
    // The repository containing the Twistlock Defender chart
    // Make sure to replace the `repo` and `version` with the correct information for Twistlock's Helm chart
    fetchOpts: {
        repo: "https://twistlock.example.com/charts",
    },
    values: {
        // ... Specify any custom values file or configuration required for Twistlock Defender
    },
}, { provider });

// Export the OpenShift cluster's API server URL
export const openshiftApiUrl = openshiftCluster.apiserverUrl;

// Export the KubeConfig to access the cluster
export const kubeconfig = openshiftCluster.kubeConfig.raw;
```

This Pulumi program starts by importing the necessary Pulumi packages. It creates a new Azure resource group, an OpenShift cluster within that group, and then deploys the Twistlock Defender Helm chart to the cluster using the `kubernetes.helm.v3.Chart` resource. Remember to provide the correct repository URL for the Twistlock Defender Helm chart and any required configuration values in the program according to Twistlock's documentation.

Finally, the program exports the OpenShift cluster's API server URL and the kubeconfig that you can use to interact with the cluster using `kubectl`. After executing this Pulumi program, the Twistlock Defender should be deployed on the Azure Managed OpenShift Service cluster.