Deploy the pritunl-vpn helm chart on Rancher

Question

Pulumi · Accepted Answer

Deploying a Helm chart on Rancher using Pulumi requires several steps, including setting up Rancher itself, creating a Kubernetes cluster within Rancher if not already present, and then deploying the Helm chart to that cluster. The Helm chart for Pritunl VPN would be deployed to a Kubernetes cluster managed by Rancher.

Pulumi's Rancher2 provider is used here to interact with a Rancher instance. First, ensure you have a Rancher server up and running and have access to the API keys necessary to interact with Rancher via Pulumi.

The following program demonstrates deploying the Pritunl VPN Helm chart to a Kubernetes cluster in Rancher. We'll create a new namespace for the Pritunl VPN, then install the Helm chart into that namespace.

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

// Replace these values with the appropriate cluster ID and helm chart details.
const clusterId = 'your-cluster-id';
const chartName = 'pritunl-vpn';
const chartVersion = 'version-of-the-chart';
const releaseName = 'pritunl-vpn-release';
const namespaceName = 'pritunl-namespace';
const chartRepo = 'https://helm-repository-containing-pritunl/';

// Initialize a new rancher2 provider instance
const provider = new rancher2.Provider('rancher2-provider', {
    apiURL: 'https://your-rancher-api-url',
    accessToken: 'your-rancher-access-token',
    secretKey: 'your-rancher-secret-key',
});

// Create a new namespace within the cluster for the Pritunl VPN deployment
const pritunlNamespace = new rancher2.Namespace('pritunl-namespace', {
    clusterId: clusterId,
    name: namespaceName,
    description: 'Namespace for Pritunl VPN',
}, { provider });

// Set up a Kubernetes provider to install Helm charts into the cluster managed by Rancher
const k8sProvider = new k8s.Provider('k8s-provider', {
    kubeconfig: pulumi.output(provider.kubeConfig),
});

// Deploy Pritunl VPN using the Helm chart
const pritunlHelmChart = new k8s.helm.v3.Chart(releaseName, {
    chart: chartName,
    version: chartVersion,
    fetchOpts: {
        repo: chartRepo,
    },
    namespace: pritunlNamespace.id, // Ensure Helm chart is installed within the same namespace
}, { provider: k8sProvider });

// Export the namespace where the chart is installed and any other details you might need
export const pritunlVpnNamespace = pritunlNamespace.name;
```

In this program:

1. We import the necessary Pulumi packages for Kubernetes and Rancher2.
2. We create a Rancher2 provider that communicates with the Rancher server using the API URL and keys specified.
3. A namespace for the Pritunl VPN deployment is provisioned on the Kubernetes cluster managed by Rancher, assuming you have a `clusterId` for an existing cluster.
4. We set up a Kubernetes provider using the kubeconfig provided by the Rancher provider instance.
5. We deploy the Pritunl VPN Helm chart to the cluster using Pulumi's Helm chart resource. This requires specifying the chart name, version, and repository.
6. Optionally, we export the namespace where the chart is deployed. You could export additional configuration information or outputs based on your requirements.

Before you run this code, make sure to replace placeholder values (`your-cluster-id`, `version-of-the-chart`, etc.) with actual values that correspond to your Rancher setup and the Helm chart you wish to deploy.

Run this Pulumi program with the `pulumi up` command in your terminal. Make sure you have the Pulumi CLI installed and are logged into Pulumi to manage your state and resources.