Deploy the tyk-data-plane helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the `tyk-data-plane` Helm chart on Azure Managed OpenShift Service using Pulumi, we will perform the following steps:

1. Set up an Azure Managed OpenShift Cluster
2. Install the `tyk-data-plane` Helm chart on this cluster

We will be using two main resources from Pulumi:
- `azure-native.containerservice.OpenShiftManagedCluster` to create an Azure Red Hat OpenShift (ARO) managed cluster.
- `kubernetes.helm.v3.Chart` to deploy the Helm chart on the Kubernetes cluster provided by ARO.

Here's a Pulumi program in TypeScript that accomplishes this:

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

// Set up an Azure Resource Group
const resourceGroup = new azure_native.resources.ResourceGroup("myResourceGroup");

// Create an Azure Red Hat OpenShift Managed Cluster
const openshiftCluster = new azure_native.containerservice.OpenShiftManagedCluster("myOpenshiftCluster", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    openShiftVersion: "4.3", // Specify the OpenShift version
    // Define master and worker node profiles, and other necessary properties
    masterPoolProfile: {
        name: "master", // Master profile name
        count: 3, // Number of master nodes
        vmSize: "Standard_D4s_v3", // Size of VM for the master pool
    },
    agentPoolProfiles: [{
        name: "default", // Worker node profile name
        role: "Compute", // Role of the pool
        count: 3, // Number of worker nodes
        vmSize: "Standard_D4s_v3", // Size of VM for the worker pool
    }],
    // Define networking and authentication profiles as needed
    // ...
});

// Set up a provider to connect to the created cluster
const provider = new k8s.Provider("openshiftProvider", {
    kubeconfig: openshiftCluster.config.rawConfig,
});

// Deploy the tyk-data-plane Helm chart on the OpenShift cluster
const tykDataPlaneChart = new k8s.helm.v3.Chart("tyk-data-plane", {
    chart: "tyk-headless", // Chart name in the Helm repository
    version: "0.6.1", // Specific chart version
    fetchOpts: {
        // Specify the repository settings if the chart is not in the default Helm repo
        repo: "https://helm.tyk.io/public/helm/charts/",
    },
    values: {
        // Provide any required values to customize the installation of the tyk-data-plane chart
        // ...
    },
}, { provider: provider });

// Export the cluster's kubeconfig
export const kubeConfig = openshiftCluster.config.rawConfig;
```

In this code, we begin by creating a resource group which will contain our OpenShift cluster. `azure_native.resources.ResourceGroup` is responsible for grouping our resources in Azure.

Next, we define and deploy our OpenShift cluster using the `azure_native.containerservice.OpenShiftManagedCluster`. The parameters include the location, version of OpenShift, master and worker node profiles, and other necessary configuration like networking and authentication which are specified as needed. This cluster will be managed by Azure, abstracting away many of the underlying details for us.

Then we set up a Pulumi Kubernetes Provider using the kubeconfig from our newly created OpenShift cluster. The provider enables Pulumi to deploy applications and resources to that cluster.

Afterwards, we use Pulumi's `kubernetes.helm.v3.Chart` to deploy the `tyk-data-plane` Helm chart to the cluster. We specify the name of the chart, the version, repository details, and any necessary values to customize the Helm chart installation according to the `tyk-data-plane` chart's documentation.

Lastly, we export the kubeconfig which allows us to interact with our Kubernetes cluster through `kubectl` or any other compatible tools.

Keep in mind that Pulumi stores state about your infrastructure, so it can safely make changes and updates. It requires some set up, such as [installing Pulumi](https://www.pulumi.com/docs/get-started/install/) and [configuring Azure credentials](https://www.pulumi.com/docs/intro/cloud-providers/azure/setup/).

Upon running this program with `pulumi up`, Pulumi will perform the diff, show you the expected changes, and you can proceed with the deployment. Always review the plan before deploying.