Deploy the tyk-oss helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the Tyk open-source Helm chart on a Kubernetes cluster managed by Rancher, you'll need to perform the following high-level steps:

1. Ensure you have a Kubernetes cluster managed by Rancher.
2. Add the Tyk Helm chart repository to Rancher.
3. Deploy the Tyk OSS Helm chart to the cluster.

Here’s a Pulumi TypeScript program that demonstrates these steps:

### Step 1: Set up a new Kubernetes cluster managed by Rancher
To begin with, you must have access to a Kubernetes cluster that is managed by Rancher. For the sake of this example, we'll assume you have an existing Rancher-managed cluster named `my-rancher-cluster`. If you do not have a Rancher-managed Kubernetes cluster, you will need to set one up either using Pulumi's `rancher2.Cluster` resource or through the Rancher UI.

### Step 2: Install the Tyk OSS Helm chart
This step involves adding the Tyk Helm repository and then deploying the Tyk OSS Helm chart to your cluster. Pulumi does not have a direct integration with Rancher for Helm operations, so we rely on the `kubernetes` package to deploy Helm charts.

Before we proceed with the Pulumi program, ensure you have Pulumi installed and configured with credentials for your Kubernetes cluster.

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

const tykOssChart = new k8s.helm.v3.Chart("tyk-oss", {
    chart: "tyk-headless",
    version: "0.6.1", // Specify the version of the chart you want to deploy
    fetchOpts: {
        repo: "https://helm.tyk.io/public/helm/charts/",
    },
    // Set values for the helm chart as required for your setup
    values: {
        // Specify any custom values needed for Tyk OSS helm chart
    },
});

export const chartName = tykOssChart.chart;
export const chartVersion = tykOssChart.version;
```

### Explanation:
- The `@pulumi/kubernetes` package is used to interact with Kubernetes resources.
- We create a new instance of `k8s.helm.v3.Chart` to represent the Tyk OSS Helm chart in our Pulumi program. The chart is named "tyk-oss".
- We specify the chart name as `tyk-headless` and provide the Helm repository URL where the chart can be found.
- `values`: This section allows you to specify any values that you would like to override in the Tyk OSS Helm chart's default configuration. This could include setting up service annotations, ingress settings, resources, and any Tyk-specific configurations.
- Two exports at the end named `chartName` and `chartVersion` will output the name and version of the Helm chart that gets deployed.

After writing the code, run `pulumi up` to execute the Pulumi program. This command will prompt you to confirm the actions before proceeding. Pulumi performs the deployment of the Helm chart to your Rancher-managed Kubernetes cluster.

Keep in mind that further customization may be needed based on your specific requirements and the setup of your Rancher-managed cluster. You should also ensure that you have the correct access permissions and that your Pulumi context is configured for the right Kubernetes cluster.