Deploy the wikibase-ingress helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the `wikibase-ingress` Helm chart on a Rancher-managed Kubernetes cluster using Pulumi, we will take the following steps:

1. **Create or Use an Existing Kubernetes Cluster**: Ensure you have a Rancher Kubernetes cluster provisioned. Pulumi lets you manage clusters with the `rancher2.Cluster` resource, but since creating a cluster is out of scope for deploying a Helm chart, we will assume you have an existing cluster.

2. **Set Up the Rancher Provider**: Configure Pulumi to use the `rancher2` provider to interact with your existing Rancher2 installation.

3. **Deploy the Helm Chart**: Use the `helm.v3.Chart` resource to deploy the `wikibase-ingress` chart. This resource is a part of the `@pulumi/kubernetes` library and provides a way to deploy Helm charts in a Pulumi program.

Now let's write the Pulumi TypeScript program:

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

// Step 1: Provide the existing Rancher Kubernetes cluster's details.
// Replace 'existing-cluster-id' with your actual cluster ID.
const clusterId = 'existing-cluster-id';

// Step 2: Set up the Rancher2 provider.
const rancher2Provider = new rancher2.Provider('rancher-provider', {
    apiUrl: 'https://your-rancher-api.example.com', // Replace with your Rancher API URL.
    accessKey: 'your-access-key',                   // Replace with your Rancher access key.
    secretKey: 'your-secret-key',                   // Replace with your Rancher secret key.
});

// Step 3: Deploy the wikibase-ingress Helm chart using Pulumi's Helm Chart resource.
// Note: Ensure that you have added the appropriate Helm Chart repository containing
// the 'wikibase-ingress' chart prior to running this Pulumi program.
const wikibaseIngressChart = new k8s.helm.v3.Chart('wikibase-ingress', {
    // Specify the chart details, like the chart version and the Helm repository.
    chart: 'wikibase-ingress',
    version: 'chart-version',  // Specify the chart version you want to deploy.
    fetchOpts: {
        repo: 'https://charts.example.com/', // Replace with the actual repository URL.
    },
    // Provide values for the chart's configurable options.
    values: {
        // Set the chart values that are specific to wikibase-ingress.
        // For example, you might need to configure the domain, annotations, etc.
        // These values depend on the specifics of the chart and your requirements.
    },
}, { provider: rancher2Provider });

// Export the Helm release's name, or any other details you'd like to retrieve later.
export const helmReleaseName = wikibaseIngressChart.status.name;
```

This program contains the following parts:

- **Provider Configuration**: Configure the Rancher2 provider with the API endpoint and authentication keys.
- **Helm Chart Deployment**: Deploy the `wikibase-ingress` Helm chart to your Kubernetes cluster managed by Rancher.

Before running this program, you'll need to:
- Replace placeholders with actual values, such as the Rancher API URL, access key, secret key, and your Rancher cluster ID.
- Ensure you have the Helm chart repository added to your Helm installation that contains the `wikibase-ingress` chart.
- Specify the version of the chart and any required values based on your specific requirements for `wikibase-ingress`.

To run the program, authenticate with Pulumi and the Rancher API, then execute your program using `pulumi up` in your CLI. Pulumi will provision the resources described in the script according to your current configuration.