Deploy the crowdsec-traefik-bouncer helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the crowdsec-traefik-bouncer Helm chart on a Rancher-managed Kubernetes cluster using Pulumi, we will perform several steps:

1. Create or select a Kubernetes cluster managed by Rancher.
2. Configure Pulumi to manage resources in the Rancher environment.
3. Deploy the `crowdsec-traefik-bouncer` Helm chart into the selected Kubernetes cluster.

We will use the `rancher2` package to interact with Rancher. This package provides us with resources to manage Rancher such as clusters, catalogs, and workloads.

First, ensure you have the Rancher2 provider configured in your Pulumi stack. This may require you to authenticate with your Rancher server via access tokens. We won't directly cover authentication in this code as Pulumi will use the Rancher2 provider configurations from the environment or Pulumi config.

Here is the program, written in TypeScript, to deploy the `crowdsec-traefik-bouncer` Helm chart on Rancher:

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

// In this example, it's assumed that a Rancher cluster is already provisioned and managed outside of this Pulumi program
// Typically you would have a preconfigured cluster where the Helm chart should be installed

// fetch an existing rancher cluster
const cluster = rancher2.getCluster({
    name: "my-existing-cluster", // Replace with the name of your Rancher-managed cluster
});

// Now that we have the cluster, we will configure a Pulumi Kubernetes provider to deploy workloads to this cluster
const k8sProvider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeConfig, // We utilize the kubeConfig from the fetched Rancher cluster
});

// Using the Kubernetes provider, we can deploy Helm charts into the cluster
// Note: Ensure that Helm and the necessary repositories are configured in your environment
const traefikBouncerChart = new k8s.helm.v3.Chart("crowdsec-traefik-bouncer", {
    chart: "crowdsec-traefik-bouncer",
    // version: "x.y.z", // Specify the chart version if necessary
    fetchOpts: {
        repo: "https://crowdsec.github.io/helm-charts", // The Helm chart repository hosting crowdsec-traefik-bouncer
    },
    // values: {}, // Provide necessary values to configure crowdsec-traefik-bouncer
}, { provider: k8sProvider });

// Export the base URL to access Traefik dashboard if needed
export const traefikDashboardUrl = traefikBouncerChart.getResourceProperty("v1/Service", "crowdsec-traefik-bouncer", "status");

// Note: You might need to provide custom values for the Helm chart to properly configure it according to your setup
// The 'values' parameter within the Chart resource allows you to pass in a configuration object for this purpose

```

In this program:
- We use the `@pulumi/rancher2` module to interact with Rancher.
- We retrieve an existing Rancher-managed Kubernetes cluster.
- We create a Pulumi Kubernetes provider configured with the kubeconfig of the Rancher cluster.
- Using the new Kubernetes provider, we deploy the `crowdsec-traefik-bouncer` Helm chart available in the provided Helm repository.

Remember to replace `"my-existing-cluster"` with the actual name of your Rancher-managed Kubernetes cluster.

Notes:
- The `kubeConfig` property is used to point the Kubernetes provider to the right cluster.
- We use an existing Helm chart, specifying the repository where the chart can be found. We also allow specifying a version, and a set of custom values to configure the Helm chart, which may be necessary depending on your specific needs.
- We export the URL which can be used to access the Traefik dashboard, assuming that's useful for your setup.

Make sure to install the necessary Pulumi providers with npm or yarn:
```shell
npm install @pulumi/kubernetes @pulumi/rancher2
```

Run the Pulumi program with:
```shell
pulumi up
```

Also, make sure you have access to the Rancher Management API and the necessary permissions to deploy Helm charts into your cluster.