1. Deploy the capi helm chart on Rancher


    To deploy the CAPI (Cluster API) Helm chart on a Rancher-managed Kubernetes cluster using Pulumi, we would typically perform the following steps:

    1. Setup Pulumi: Ensure you have Pulumi CLI installed and configured to use the appropriate Kubernetes context for your Rancher cluster. This would include authentication details if necessary.

    2. Add Helm Chart Resource: Use Pulumi's Helm Chart resource to deploy the CAPI chart to your cluster.

    3. Configure the Deployment: Depending on the Helm chart's values, you might need to set specific configurations to tailor the deployment to your needs.

    4. Deploy with Pulumi: Run the Pulumi program to deploy your Helm chart.

    Here's a basic program in TypeScript that demonstrates these steps:

    import * as k8s from '@pulumi/kubernetes'; // Create an instance of the Kubernetes provider that Pulumi will use to deploy resources. // It will automatically use the current context from your Kubernetes configuration file (typically located at `~/.kube/config`). const provider = new k8s.Provider('my-provider', {}); // Define configuration values for your CAPI Helm chart. // You may need to replace these values with ones that match your specific requirements. const capiChartValues = { // ... (add necessary chart values here) }; // Deploy the CAPI Helm chart using Pulumi's Helm Chart resource. // This assumes you have the repository added to your Helm configuration and the Chart is available. const capiChart = new k8s.helm.v3.Chart('capi', { chart: 'cluster-api', // The name of the chart, adjust it if the chart's name is different. version: '0.1.0', // Specify the version of the chart you wish to deploy. namespace: 'capi-system', // The target namespace for your CAPI deployment. fetchOpts: { repo: 'https://example.com/helm/charts', // Replace with the actual Helm repository URL. }, values: capiChartValues, }, { provider: provider }); // Export any of the output properties from your deployment that you might need. export const chartName = capiChart.metadata.name;

    In this program:

    • We import the Kubernetes package from Pulumi (@pulumi/kubernetes), which allows us to interact with Kubernetes resources like Helm charts.
    • We instantiate a Kubernetes provider that Pulumi will use for deploying resources to your cluster. The provider uses the default context from your kubeconfig file.
    • We define some dummy configuration values for the CAPI Helm chart. These should be replaced with values specific to the helm chart you are deploying. You can find details on configurable values in the chart documentation or by inspecting the values.yaml file in the chart source.
    • We create a new Helm chart resource (capiChart) using the Chart class from Pulumi’s Helm package (@pulumi/kubernetes/helm/v3).
      • We specify details such as the chart name, version, namespace, and Helm repository where the chart is hosted.
    • Finally, we export the chart name, which can be useful for querying your deployment status later or can serve as input for other Pulumi resources.

    You need to replace the placeholder values for chart, version, namespace, and repo with the actual values that match the CAPI chart you want to deploy. The capiChartValues variable should also be populated with configuration values specific to the CAPI helm chart.

    Run this program using the Pulumi CLI. Navigate to the directory containing your Pulumi code, and execute the following commands:

    • pulumi up: This command creates or updates resources in a stack.
    • pulumi stack output: To view the stack outputs after deployment.
    • pulumi destroy: When you want to tear down your infrastructure, this command will delete all resources managed by your Pulumi program.

    Remember to thoroughly review and adjust configurations according to the Helm chart and your environment needs before running these commands.