Deploy the tyk-bootstrap helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the `tyk-bootstrap` Helm chart on a Rancher-managed Kubernetes cluster, you'll first need to have a cluster provisioned and managed by Rancher. Once you have that, you can use Pulumi with the `rancher2` provider package to set up and manage your Helm chart deployment.

Below is a Pulumi TypeScript program that demonstrates how to deploy a Helm chart to a Rancher-managed Kubernetes cluster. The program assumes you've already set up your Pulumi configuration with the necessary credentials and connection details for Rancher.

First, we will import the necessary modules and create a new instance of the Rancher2 provider. Then we use the `helm.v3.Chart` resource to specify the deployment of the `tyk-bootstrap` chart.

Here's what each part of the program does:

1. **Imports the Pulumi packages** necessary for creating the deployment.
2. **Sets up the Rancher2 provider** to interact with your Rancher server.
3. **Deploys a Helm chart** on the specified cluster.

Let's look at the Pulumi TypeScript program:

```typescript
import * as pulumi from '@pulumi/pulumi';
import * as rancher2 from '@pulumi/rancher2';
import * as k8s from '@pulumi/kubernetes';

// Configure the Rancher2 provider
const rancherProvider = new rancher2.Provider('rancher', {
    api_url: 'https://your-rancher-api-endpoint', // Replace with your Rancher API endpoint
    accessKey: 'your-access-key',                 // Replace with your Rancher access key
    secretKey: 'your-secret-key',                 // Replace with your Rancher secret key
});

// Retrieve the cluster where the Helm chart should be deployed
// Assuming 'cluster-id' is known and the cluster is managed by Rancher
const cluster = rancher2.getCluster({
    id: 'cluster-id',
}, { provider: rancherProvider });

// Use the cluster information to configure Kubernetes provider
const kubernetesProvider = cluster.id.apply(clusterId => new k8s.Provider('k8s-provider', {
    kubeconfig: rancher2.getKubeConfigOutput({ clusterId }).kubeConfig,
}));

// Deploy tyk-bootstrap Helm chart using the Kubernetes provider
const tykBootstrapChart = new k8s.helm.v3.Chart('tyk-bootstrap', {
    chart: 'tyk-bootstrap',
    version: '1.0.0', // Specify the chart version, adjust it if needed
    fetchOpts:{
        repo: 'https://helm.tyk.io/public/helm/charts/', // The repository containing the tyk-bootstrap Helm chart
    },
}, { provider: kubernetesProvider });

// Exporting the chart metadata
export const chartName = tykBootstrapChart.metadata.apply(metadata => metadata.name);
export const chartVersion = tykBootstrapChart.metadata.apply(metadata => metadata.version);
```

Before running this program, be sure to replace `'https://your-rancher-api-endpoint'`, `'your-access-key'`, `'your-secret-key'`, and `'cluster-id'` with actual values from your Rancher setup.

Note: The `rancher2.getKubeConfigOutput()` fetches the kubeconfig file for the Rancher-managed cluster, which is used by the Kubernetes provider to interact with your cluster.

This program specifies the Helm chart's name (`tyk-bootstrap`), the chart's version, and the repository URL where the Helm chart is located. You may need to adjust these values based on the actual version you want to install and the Helm repository URL.

Ensure that your Pulumi stack is correctly selected and that you've logged into the Rancher API endpoint within your Pulumi environment. You can use these commands to log in:

```bash
pulumi login
pulumi stack select (your stack name)
```

To deploy the chart, run:

```bash
pulumi up
```

Pulumi will prompt you to confirm the deployment after displaying a preview of the changes. Once confirmed, it will deploy the `tyk-bootstrap` Helm chart to your Rancher-managed Kubernetes cluster.

If you encounter any issues or require further customization of your Helm chart (such as setting up values for the chart variables), you may refer to the Pulumi documentation for Kubernetes and Helm, which provides comprehensive guides and references for various use cases.