Deploy the aws-ebs-csi-driver helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the `aws-ebs-csi-driver` Helm chart on a Rancher-managed cluster, we'll construct a Pulumi program that uses the `rancher2` provider to interact with Rancher.

Here's how you would typically approach this task:

1. **Set up Rancher Provider:** The Pulumi `rancher2` provider allows you to manage Rancher resources. To use `rancher2` in Pulumi, you first need to set up the provider by providing the Rancher API URL and a token for authentication.

2. **Create a Catalog:** Before you can deploy a Helm chart in Rancher, you often need to add the repository as a catalog in Rancher. If the Helm chart is in a public repository that Rancher already knows, this step may not be necessary.

3. **Deploy the Helm Chart:** After the catalog is available, you will use Rancher 2's Helm chart resource to deploy the `aws-ebs-csi-driver` chart to the Kubernetes cluster managed by Rancher.

Below is a TypeScript program that performs these steps:

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

// Your Rancher API endpoint and token
const rancherApiUrl = 'https://your-rancher-api-url';
const rancherBearerToken = 'token-xxxxx';

// Set up the Rancher provider
const rancherProvider = new rancher2.Provider('rancherProvider', {
    apiUrl: rancherApiUrl,
    bearerToken: rancherBearerToken,
});

// The cluster ID where you want to deploy the aws-ebs-csi-driver
const clusterId = 'c-xxxxx';

// Define the Helm chart repository as a Rancher Catalog
const awsEbsCsiDriverCatalog = new rancher2.CatalogV2('awsEbsCsiDriverCatalog', {
    clusterId: clusterId,
    name: 'aws-ebs-csi-driver',
    url: 'https://kubernetes-sigs.github.io/aws-ebs-csi-driver/', // Replace with the chart repository URL
    // Other catalog configuration details can go here, like branch or secrets for private repos
}, { provider: rancherProvider });

// Deploy the aws-ebs-csi-driver Helm chart using Rancher
const awsEbsCsiDriverDeployment = new rancher2.AppV2('awsEbsCsiDriverApp', {
    clusterId: clusterId,
    namespace: 'kube-system', // Namespace where you want to deploy the chart
    repoName: awsEbsCsiDriverCatalog.name,
    chartName: 'aws-ebs-csi-driver',
    chartVersion: 'x.x.x', // Specify the chart version you want to deploy
    // You can specify values for the chart in the valuesYaml property.
    valuesYaml: ` # Add any configuration needed as YAML
      ...
    `,
}, { provider: rancherProvider, dependsOn: [awsEbsCsiDriverCatalog] });

// Export the app name of the deployment
export const awsEbsCsiDriverAppName = awsEbsCsiDriverDeployment.metadata.name;
```

This Pulumi program initializes the Rancher provider with the necessary credentials, then it proceeds to create a catalog entry in Rancher for the `aws-ebs-csi-driver` Helm chart repository. After the catalog is set up, it deploys the Helm chart to the specified cluster. Make sure to replace placeholders with your actual data, such as the API URL, token, and cluster ID.

Keep in mind that there may be additional configuration options you want to customize in the `valuesYaml` property, based on the requirements of the `aws-ebs-csi-driver` Helm chart. Those can be specified as indented YAML format within the `valuesYaml` string.

This demonstrates infrastructure as code, where the entire infrastructure can be declared programmatically and managed in a consistent and reproducible manner using Pulumi.