Deploy the tyk-data-plane helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy the `tyk-data-plane` Helm chart on Kubernetes using Pulumi, you'll be working with the `Chart` resource from the `@pulumi/kubernetes` package. This resource is responsible for deploying Helm charts into a Kubernetes cluster.

Here's a step-by-step guide followed by a TypeScript example to achieve this:

1. **Set up Pulumi Kubernetes Provider**: You'll begin by configuring Pulumi to interact with your Kubernetes cluster. The provider allows Pulumi to perform operations on the Kubernetes cluster by using your kubeconfig file.

2. **Create a Helm Chart Resource**: You'll define a `Chart` resource that specifies the `tyk-data-plane` Helm chart. You'll need to provide the chart name, version, and any specific values you wish to override in the Helm chart.

3. **Deploy the Chart**: Once the `Chart` resource is defined, Pulumi will handle the deployment process when you run `pulumi up`. It will install the Helm chart into your Kubernetes cluster with the provided configuration.

Here's the Pulumi TypeScript code that accomplishes the deployment:

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

// Create a new Pulumi Kubernetes provider instance using the current context from kubeconfig.
const k8sProvider = new kubernetes.Provider("k8s", {
  // Pulumi automatically uses the kubeconfig from KUBECONFIG environment variable or default location.
});

// Define the Helm chart for Tyk Data Plane.
// You may need to specify the exact version or any additional values depending on your use case.
const tykDataPlaneChart = new kubernetes.helm.v3.Chart("tyk-data-plane-chart", {
  chart: "tyk-data-plane",
  // Specify the Helm repository that hosts the tyk-data-plane chart
  fetchOpts: {
    repo: "https://helm.tyk.io/public/helm/charts/",
  },
  // Insert any required values needed to configure Tyk Data Plane or override its default values here.
  // For example:
  // values: {
  //   someValue: "override-value",
  // },
}, { provider: k8sProvider });

// Export the Kubernetes resources created by the Helm chart.
export const resources = tykDataPlaneChart.resources;
```

In this program:

- We import the necessary Pulumi packages for Kubernetes and Helm.
- We create a Kubernetes `Provider` instance that Pulumi uses to interact with the target Kubernetes cluster.
- We set up a `Chart` resource with `chart` set to `'tyk-data-plane'`. We also specify the Helm repository URL where the chart can be found.
- Optionally, you could provide a `values` object if you need to override any values in the default chart.

Remember to replace the `repo` URL with the correct repository if `tyk-data-plane` is hosted somewhere else. Also, fill the `values` field accordingly if you have specific configuration requirements for `tyk-data-plane`.

To deploy the Helm chart:

1. Save the code in a file (e.g., `index.ts`).
2. Ensure the Pulumi CLI is installed and configured with your Kubernetes cluster.
3. Run `pulumi up` in the directory containing the code. Pulumi will perform the deployment.

Lastly, the `resources` export is a Pulumi feature that gives you access to the status of all resources created by the Helm chart in Pulumi's outputs. This is useful for integrating with other Pulumi-managed resources, like setting up monitoring or alerting based on the deployed resources.