Deploy the keycloak-controller helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the `keycloak-controller` helm chart on Rancher through Pulumi, you would typically take the following steps:

1. Set up the required Pulumi resources such as `Cluster` where you'd install your helm chart.
2. Include the `CatalogV2` that points to the repository where the `keycloak-controller` chart is located.
3. Use the `Helm` resource to deploy the `keycloak-controller` chart from the specified catalog.

It appears from the search results that we do not have a specific Pulumi resource that represents the helm chart for `keycloak-controller`. Still, we can use the general Helm chart resource provided by Pulumi to deploy any helm chart if it's available in a helm repository.

Below is an example of how this might look in Pulumi using TypeScript. This example assumes you have already configured your `rancher2` provider and have cluster access where you can deploy the helm chart.

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

// Step 1: Ensure a Kubernetes cluster is available on Rancher.
// Create or select a Kubernetes cluster managed by Rancher:
const cluster = new rancher2.Cluster("my-cluster", {
  // ... Configure your cluster as needed
});

// Step 2: Define the catalog that contains the keycloak-controller helm chart.
const catalog = new rancher2.CatalogV2("keycloak-catalog", {
    clusterId: cluster.id,
    url: "https://helm-repository-containing-keycloak-controller.com", // Replace with the actual repository URL
    gitBranch: "main", // Adjust this to match the git branch if using a git repository
    // Other properties if needed
});

// Step 3: Deploy the keycloak-controller chart using pulumi/kubernetes.
const keycloakControllerChart = new k8s.helm.v3.Chart("keycloak-controller", {
    chart: "keycloak-controller",
    fetchOpts: {
        repo: "https://helm-repository-containing-keycloak-controller.com", // Use the same repo as in CatalogV2
    },
    version: "chart-version", // Specify the chart version here if needed
    namespace: "keycloak-controller-namespace", // Specify the namespace where it should be installed
    // Include values to customize the release as necessary
    values: {
        // ... Your custom configuration values
    },
}, { provider: cluster }); // Make sure to pass the cluster as a provider

// Export the endpoint of the keycloak-controller if it's needed.
export const keycloakControllerEndpoint = keycloakControllerChart.getResourceProperty("v1/Service", "keycloak-controller-service", "status").apply(status => status.loadBalancer.ingress[0].hostname);
```

In this example:

- We create a Rancher cluster object. In practice, you'd configure this with settings appropriate for your environment (like node size, region, and other cloud-specific settings). Consult the [Rancher Cluster documentation](https://www.pulumi.com/registry/packages/rancher2/api-docs/cluster/) for detailed information.
  
- Next, we define a `CatalogV2` object, pointing to the helm repository URL. A Catalog V2 allows you to manage Helm chart repositories declared within a Rancher v2.x cluster.
  
- We then declare a `Chart` resource from `@pulumi/kubernetes` which is used to deploy helm charts. The `chart` parameter is the name of the chart in the repository, and the `fetchOpts` parameter includes the repository URL where the chart is hosted. The version is the chart version you want to deploy, and you can also provide custom values through the `values` parameter that allow you to customize the helm chart deployment.

- The `ResourceProperty` and `apply` method are used to get the public endpoint of the service that gets created as a result of the helm chart (if there's a LoadBalancer service in the chart). This assumes the helm chart will create a Kubernetes Service of type LoadBalancer to access Keycloak. Adjust the `getResourceProperty` method as needed to match the resources created by the chart.

This program requires the helm chart for the `keycloak-controller` to be present in the specified helm repository. If it's not there or if it's self-hosted, you'll need to adjust the URL and possibly other settings accordingly.