Deploy the token-server helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy a Helm chart on Rancher using Pulumi, you'll need to set up your Pulumi environment to interact with your Rancher instance. You'll make use of the `rancher2` provider to create and manage resources in Rancher.

The primary resources involved in deploying a Helm chart on Rancher include the following:

- `rancher2.CatalogV2`: The Helm chart repository where your token-server chart is hosted.
- `rancher2.Cluster`: The Kubernetes cluster managed by Rancher where you will deploy the chart.
- `rancher2.AppV2`: Represents a Helm release, which is an instance of a Helm chart running in a Kubernetes cluster.

Below is a step-by-step program in TypeScript that demonstrates how to deploy the token-server Helm chart on Rancher.

First, ensure you have installed the necessary Pulumi packages for Rancher and Kubernetes:

```bash
# Install Pulumi CLI and set up your Pulumi project

# Add necessary Pulumi packages for Rancher2
pulumi plugin install resource rancher2 v5.1.1
npm install @pulumi/rancher2
npm install @pulumi/kubernetes
```

Next, you can use the following Pulumi program:

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

// Assume that you have already set up Rancher and have the Rancher API endpoint,
// access key, and secret key handy. These should be set in your Pulumi configuration or 
// environment variables for a production setup, but for the purpose of illustration, 
// we'll provide dummy values.

// Initialize the Rancher2 provider
const rancherProvider = new rancher2.Provider('rancherProvider', {
  apiURL: 'https://your-rancher-api-endpoint',
  accessKey: 'your-rancher-access-key',
  secretKey: 'your-rancher-secret-key',
});

// Create a CatalogV2 resource to add the repository containing the token-server chart
const catalog = new rancher2.CatalogV2('token-server-catalog', {
  clusterId: 'your-cluster-id', // Replace with your Cluster ID
  url: 'https://charts.yourdomain.com/', // Replace with the Helm repo URL
  gitBranch: 'main',
}, { provider: rancherProvider });

// Define the Kubernetes cluster resource where you want to deploy the Helm chart
const cluster = new rancher2.Cluster('cluster', {
  name: 'token-server-cluster', // Replace with the desired name for your cluster
  // Specify other properties for your cluster depending on your cloud provider
  // and Rancher configuration
}, { provider: rancherProvider });

// Deploy the Helm chart using the AppV2 resource
const app = new rancher2.AppV2('token-server-app', {
  repoName: catalog.name,
  chartName: 'token-server', // Replace with the exact name of the chart in the repository
  namespace: 'default', // Specify the namespace where the Helm chart should be deployed
  clusterId: cluster.id,
  // Set the values.yaml configuration for the Helm chart
  values: {
    // Provide configuration parameters specific to token-server chart
  },
  version: '1.0.0', // Specify the version of the Helm chart
}, { provider: rancherProvider });

// Export the URL of the token-server app if it's running with a public endpoint
export const tokenServerUrl = app.status.apply(status => {
  if (status?.url) return status.url;
  return "Not available";
});
```

In the program above, you start by importing the necessary Rancher and Kubernetes Pulumi packages. Then you initialize a `Provider` for interacting with Rancher.

Next, you define a `CatalogV2` resource to tell Rancher where to find the Helm chart you want to deploy. You also create a `Cluster` resource to specify the target Kubernetes cluster managed by Rancher.

Then you declare an `AppV2` resource representing the deployment of the Helm chart on the specified cluster. You can set the version of the Helm chart you want to deploy and any necessary configuration through the `values` parameter.

Finally, you export the URL of the token-server app, if available. Replace the placeholders with the correct values for your setup, including the cluster ID, chart repository URL, and chart name.

Make sure you have the correct access to your Rancher instance API and have set up the cluster where you want to deploy the Helm chart. This program is a template illustrating how to deploy a Helm chart with Pulumi. You will need to replace placeholders with actual values and add appropriate configuration specific to your chart.