Deploy the wazuh helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the Wazuh helm chart on a Rancher-managed Kubernetes cluster, you would typically follow these steps:

1. **Set up your Rancher-managed Kubernetes cluster**: Before deploying Wazuh, ensure you have a Kubernetes cluster managed by Rancher up and running.

2. **Install and configure Helm on your local machine**: Helm is a package manager for Kubernetes that you will use to deploy Wazuh. You can find instructions for installing Helm on the [official Helm website](https://helm.sh/docs/intro/install/).

3. **Add the Wazuh Helm chart repository**: You need to add the chart repository that contains Wazuh to your Helm configuration.

4. **Deploy Wazuh using Helm to your Rancher cluster**: With the Helm chart added, you can deploy Wazuh to your Kubernetes cluster.

5. **Access Wazuh Dashboard**: Once deployed, you can access the Wazuh Dashboard exposed via a LoadBalancer, NodePort, or other means depending on your configuration.

The following TypeScript program using Pulumi outlines these general steps, assuming you already have a Kubernetes cluster managed by Rancher and you have Pulumi and Helm set up on your local machine.

First, install the necessary Pulumi packages for the Kubernetes and Rancher2 providers by running these commands:
```bash
pulumi plugin install resource kubernetes v3.10.1
pulumi plugin install resource rancher2 v5.1.1
```

Then, here is a Pulumi program that deploys a Wazuh server and agent using the Helm chart into a Rancher2-managed Kubernetes cluster:

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

// Create a Rancher2 Kubernetes Cluster
const cluster = new rancher2.Cluster("my-wazuh-cluster", {
    // You need to fill in these parameters with your specific cluster details.
    // Assuming you have a Rancher Kubernetes cluster named "my-wazuh-cluster"
    // with all required fields configured such as node pools, networking, etc.
});

// Create a new Kubernetes provider instance that uses the kubeconfig from the Rancher2 Cluster
const k8sProvider = new k8s.Provider("k8s-provider", {
    kubeconfig: cluster.kubeConfigRaw,
});

// Add the Wazuh repository to Helm
const wazuhRepo = new k8s.helm.v3.Repository("wazuh-repo", {
    name: "wazuh",
    url: "https://wazuh.github.io/wazuh-charts", // This is the Wazuh Helm repository
}, { provider: k8sProvider });

// Deploy Wazuh server and agent using the Helm chart
const wazuhChart = new k8s.helm.v3.Chart("wazuh", {
    chart: "wazuh",
    version: "4.2.5", // Specify the version of Wazuh Helm chart you want to deploy
    namespace: "wazuh", // Namespace where Wazuh will be deployed. It should be pre-created.
    fetchOpts:{
        repo: wazuhRepo.name,
    },
    values: {
        // Provide any specific values you need to customize the Wazuh deployment
        // For example, you might want to specify resources, node selectors, annotations, etc.
    },
}, { provider: k8sProvider });

// Export the address where Wazuh is accessible if it has been set up with a LoadBalancer service
// The exact output depends on how the Wazuh Helm chart is set up and may require custom settings
export const wazuhAddress = wazuhChart.getResourceProperty("v1/Service", "wazuh/wazuh-svc", "status")
    .apply(status => status.loadBalancer.ingress[0].ip || status.loadBalancer.ingress[0].hostname);

```

Here's what the program does:
- It defines a Pulumi resource for a Rancher-managed Kubernetes cluster (`rancher2.Cluster`). Note that you should fill in your specific details for your cluster configuration.
- It sets up a Pulumi provider for Kubernetes (`k8s.Provider`) that uses the kubeconfig obtained from the Rancher-managed cluster.
- It adds the Wazuh Helm chart repository to your Helm configuration.
- It deploys Wazuh using a Helm chart, specifying the namespace where Wazuh will be installed and allowing you to customize the values if needed.
- Finally, the program exports the address where Wazuh is accessible. The actual implementation may vary depending on the service type and configuration provided in the Wazuh Helm chart.

Make sure to replace placeholders with the actual values that match your infrastructure.

Keep in mind that managing production-grade infrastructure requires understanding various components (networking, storage, security, etc.), monitoring solutions, and often setting up continuous integration and deployment pipelines. It is recommended to test this program in a controlled environment before using it to manage live infrastructure.