Deploy the tyk-oss helm chart on Kubernetes

Question

Pulumi · Accepted Answer

In order to deploy the `tyk-oss` Helm chart on Kubernetes using Pulumi, we will go through the following steps:

1. **Setting up Pulumi**: Ensure that Pulumi CLI is installed and set up along with the necessary cloud provider credentials. Since we are dealing with Kubernetes, you must have `kubectl` configured to communicate with your Kubernetes cluster.

2. **Setting up Node.js**: Pulumi programs are written in TypeScript, so you need to have Node.js installed to execute the code.

3. **Creating a New Pulumi Project**: Start with creating a new Pulumi project in an empty directory.

4. **Writing the Code**: Write the TypeScript code that utilizes Pulumi's Kubernetes provider to deploy the `tyk-oss` Helm chart to your Kubernetes cluster.

5. **Running the Pulumi Program**: Deploy your infrastructure by running `pulumi up` within the directory where your TypeScript code is located.

6. **Checking the Deployment**: Verify that the Helm chart has been deployed successfully by checking the output of kubectl commands or Pulumi stack's output.

Let's proceed with the code to deploy the `tyk-oss` Helm chart. Below you will find a detailed explanation along with the Pulumi TypeScript program.

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

// A Pulumi program that deploys the 'tyk-oss' Helm chart on Kubernetes.
// Ensure you have configured Pulumi to work with the desired Kubernetes cluster.
// More documentation on Pulumi's Kubernetes provider can be found here:
// https://www.pulumi.com/docs/reference/pkg/kubernetes/

// Instantiating a Helm chart from the 'tyk-oss' repository.
const tykOssChart = new k8s.helm.v3.Chart("tyk-oss", {
    // The 'repo' field indicates the Helm chart repository.
    // If 'tyk-oss' chart is in a custom repository, provide the repository URL in the field 'repo'.
    // Otherwise, if you have added the repository using `helm repo add` locally, the name will suffice.
    repo: "tyk-helm", // This is a placeholder, replace with the actual repository name if different.
    // The 'chart' field refers to the name of the chart within the repository.
    chart: "tyk-oss",
    // Optionally, specify the version of the chart to install.
    // version: "x.y.z", // Uncomment and replace with the desired chart version.
    // Include any custom values you want to pass to the Helm chart.
    // values: { ... } // Uncomment and add any required values here.
});

// Export the `tyk-oss` service endpoint to access the application after deployment.
export const tykOssEndpoint = tykOssChart.getResourceProperty("v1/Service", "tyk-oss", "status").apply(status => status.loadBalancer.ingress[0].ip);

// To apply the changes, you would typically run `pulumi up` from the command line, and Pulumi will handle the deployment.

```

This program sets up the deployment of the `tyk-oss` Helm chart into a Kubernetes cluster. It uses the Pulumi Kubernetes provider to instantiate the helm chart with some optional parameters such as `repo`, `chart`, and `version`. The `values` field is where you could provide custom configuration values for the `tyk-oss` Helm chart.

Please note the `repo` field in the example code should be updated with the actual repository name where the `tyk-oss` chart is located. Some Helm charts require specific configuration through the `values` parameter, which you might need to specify based on the application needs and the Kubernetes environment.

The final line of the program attempts to export the IP address of the load balancer that's associated with the `tyk-oss` chart service, assuming it has been set up with a load balancer. If the service is not of type LoadBalancer, or you need a different kind of endpoint, this section will need to be adjusted accordingly.

The code provided assumes basic defaults for deploying Helm charts to Kubernetes with Pulumi. Depending on your cluster setup, `tyk-oss` chart requirements, and cloud provider specifics, additional configuration may be necessary. Always refer to the [`tyk-oss` Helm chart documentation](https://github.com/TykTechnologies/tyk-helm-chart) for the most accurate information.