Deploy the tyk-stack helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the Tyk stack Helm chart on OpenShift, you'll need a Kubernetes cluster running OpenShift and appropriate access configured to deploy Helm charts. With Pulumi, you can use the `kubernetes.helm.sh/v3.Chart` resource from the Kubernetes provider which allows you to deploy Helm charts on a Kubernetes cluster.

Here's a step-by-step guide and a Pulumi TypeScript program you can use to deploy the Tyk stack on OpenShift:

### Step 1: Set up Pulumi and Import Necessary Packages

Before we write the program, make sure you have Pulumi CLI installed and configured with the necessary credentials for your OpenShift cluster.

### Step 2: Write the Pulumi Program

We will write a Pulumi program in TypeScript to deploy the Tyk stack. The `kubernetes.helm.sh/v3.Chart` resource will be used to deploy the Helm chart.

Below is the complete Pulumi program that performs this deployment:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as k8s from "@pulumi/kubernetes";

// Initialize a Pulumi Kubernetes provider for OpenShift by passing in the appropriate kubeconfig.
// If your kubeconfig file is in the default location (`~/.kube/config`), Pulumi will use it automatically.
const openshiftProvider = new k8s.Provider("openshiftProvider", {
  kubeconfig: process.env.KUBECONFIG, // Replace this with your kubeconfig if not in the default location.
});

// Deploy the tyk-stack Helm chart on the OpenShift cluster.
const tykStackChart = new k8s.helm.v3.Chart("tyk-stack", {
    repo: "tyk-helm", // Specify the repository name where the Tyk stack chart is located.
    chart: "tyk-headless", // Replace with the correct chart name for Tyk stack if different.
    version: "x.y.z", // Replace with the desired chart version.
    // Add any custom values you want to set for the Tyk chart.
    // Refer to the official Tyk Helm chart documentation for available options.
    values: {
      // For example, if you want to enable the dashboard, you might specify:
      // dashboard: {
      //   enabled: true,
      //   ...
      // },
      // Ensure to set the necessary values that apply to the Tyk Helm chart.
    },
}, { provider: openshiftProvider }); // Specify the OpenShift provider we initialized earlier.

// Export the base URL for the Tyk dashboard if it's enabled in your Helm chart values.
export const tykDashboardBaseUrl = tykStackChart.getResourceProperty("v1/Service", "tyk-dashboard", "status.loadBalancer.ingress[0].ip");

```

### Step 3: Deploy the Tyk Stack

1. Save the program to a file named `index.ts`.
2. To install dependencies, run `npm install` in the command line from the directory where your `index.ts` file resides.
3. Run `pulumi up` to execute the program and deploy the Tyk stack to your OpenShift cluster.

### Explanation

- **Provider Configuration**: At the beginning of the program, we instantiate a Pulumi Kubernetes provider specifically for OpenShift, which requires a kubeconfig file pointing to your OpenShift cluster.

- **Deploying Tyk Stack**: We declare a Pulumi resource for deploying the Helm chart, `kubernetes.helm.sh/v3.Chart`, specifying the chart name, repository, and version. Adjust these to match the actual chart details for the Tyk stack.

- **Exporting Outputs**: The last line exports an output that may contain the IP or URL of the Tyk dashboard, assuming that you've enabled the dashboard in the Helm chart values. Access to the exported URL would typically give you a way to interact with the Tyk Stack.

Make sure to review the Tyk Helm chart documentation for details on the specific values and configurations that are available and adapt the `values` object in the `Chart` resource as needed to fit your specific requirements.