Deploy the tyk-bootstrap helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the tyk-bootstrap Helm chart on an Azure Managed OpenShift Service, you will need to follow these general steps:

1. Set up your Azure Managed OpenShift Service.
2. Install the necessary Pulumi packages for interacting with Azure and Kubernetes.
3. Use Pulumi to deploy the tyk-bootstrap Helm chart to your OpenShift cluster.

Below is a Pulumi program written in TypeScript that carries out these steps. This program assumes that you have already configured your Pulumi CLI with Azure credentials. First, we will define an Azure OpenShiftManagedCluster. Then, we install the tyk-bootstrap Helm chart on it using the Pulumi Kubernetes provider.

Here's an outline of the Pulumi TypeScript program:

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

// Provision an Azure Managed OpenShift Cluster with the help of azure-native provider.
const openShiftManagedCluster = new azure_native.containerservice.OpenShiftManagedCluster('myOpenshiftCluster', {
    // Specify the necessary properties like resourceGroupName, location, openShiftVersion, etc.
    // Note: Replace placeholder values with your specific details.
    resourceGroupName: 'myResourceGroup',
    location: 'East US',
    openShiftVersion: '4.3.0', // Replace with the version you intend to use
    tags: {
        environment: 'production',
    },
    // ...other properties like networkProfile, masterPoolProfile, agentPoolProfiles...
});

// Setting up Pulumi Kubernetes provider to interact with the OpenShift cluster.
const k8sProvider = new k8s.Provider('k8sProvider', {
    kubeconfig: openShiftManagedCluster.kubeconfig.apply(kubeconfig => kubeconfig),
});

// Deploy the tyk-bootstrap Helm chart using the Pulumi Kubernetes provider.
const tykBootstrapChart = new k8s.helm.v3.Chart('tyk-bootstrap', {
    chart: 'tyk-bootstrap',
    version: '1.2.3', // Specify the chart version you want to deploy
    fetchOpts: {
        repo: 'https://helm.tyk.io/public/helm/charts/', // Tyk's official Helm chart repository
    },
    // Values in `values` correspond to the settings defined within the Helm chart's `values.yaml` file.
    values: {
        // ...set your Helm chart values here...

// Example value (please change accordingly):
        gateway: {
            replicaCount: 2,
        },
    },
}, { provider: k8sProvider });

// Export the public endpoint of the management environment, if applicable.
export const managementEndpoint = openShiftManagedCluster.publicHostname;
```

This program begins by importing the necessary Pulumi modules for both Azure (`@pulumi/azure-native`) and Kubernetes (`@pulumi/kubernetes`). It then defines a resource for the managed OpenShift cluster using Pulumi's Azure Native provider, including placeholders for your specific configuration such as resource group name, location, OpenShift version, and any other required properties. The `tags` property is included as an example of how you might tag your resources in Azure.

Next, it creates a Pulumi Kubernetes provider, allowing us to interact with the Kubernetes cluster. We use the kubeconfig from the OpenShift cluster to configure this provider, which effectively links our Pulumi Kubernetes resources to the OpenShift service.

Once the provider is set up, we deploy the tyk-bootstrap Helm chart. For this, we need to specify the chart name, the version we wish to deploy, and the Helm chart repository URL. The `values` property is where you would override any default settings in the Helm chart's `values.yaml` file according to your specific requirements for the Tyk gateway.

Finally, the script exports the public hostname of the managed OpenShift cluster, which you can use to access the Tyk API Gateway once it's deployed.

Remember to replace placeholder values and `values` settings with the specifics of your Azure and Tyk configuration. Once you've updated the program with your details, you can run it using the Pulumi CLI, and it will set up the OpenShift cluster and deploy the Tyk Helm chart for you.