Deploy the pritunl-vpn helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy the Pritunl VPN Helm chart on Kubernetes using Pulumi, you will need to utilize the `Chart` resource from the Pulumi Kubernetes provider. The `Chart` resource is a higher-level abstraction that allows you to deploy Helm charts into a Kubernetes cluster.

Before you begin, ensure that you have:
- A Kubernetes cluster up and running.
- Helm chart repository added that contains the Pritunl VPN Helm chart (`https://helm.pritunl.com`).
- Pulumi installed and configured with access to your Kubernetes cluster.

Here's a step-by-step guide on how to deploy the Pritunl VPN Helm chart using Pulumi:

1. **Import the necessary libraries**: Import the Pulumi Kubernetes library to use the `Chart` resource.

2. **Configure the Kubernetes provider**: Ensure that Pulumi is configured to use your Kubernetes cluster, set up either via a configuration file (kubeconfig) or other authentication mechanisms supported by your cloud provider.

3. **Create a new Helm `Chart` resource**: Using the `Chart` class to specify the Helm chart's name, the repository where it is located, and optionally, any specific configuration values required by the chart.

Here is the Pulumi TypeScript program that accomplishes this:

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

// This creates a new Pritunl VPN Helm chart resource targeting the Kubernetes cluster.
// Replace 'your-namespace' with the namespace you want to deploy to.
const pritunlVpnChart = new k8s.helm.v3.Chart('pritunl-vpn', {
    chart: 'pritunl',
    version: 'latest', // Specify the chart version you wish to deploy
    fetchOpts: {
        repo: 'https://helm.pritunl.com',
    },
    namespace: 'your-namespace', // Ensure this namespace exists in your cluster
    // You can specify the values corresponding to the chart's values.yaml file.
    // Below is an example modify as per your chart's requirements
    values: {
        mongodb: {
            // Assuming MongoDB settings are to be configured
            // Provide the MongoDB values as per chart requirements
        }
        // Specify other values as required
    }
}, { provider: /* pass your k8s provider if needed */ });

export const vpnChartName = pritunlVpnChart.metadata.name;
```

In this program:
- We import the Pulumi Kubernetes plugin, which allows us to work with Kubernetes resources.
- We create a new instance of a Helm `Chart`, pointing to the Pritunl VPN chart within its known Helm repository.
- We optionally provide configuration values that the chart might require. This can include setting values for dependent charts, such as MongoDB in this case. You'll want to replace these placeholder values with actual configuration settings based on your requirements.
- We export the name of the deployed Helm chart for easy reference.

**Note**: The `values` property in the `Chart` resource defines the configuration for the Pritunl VPN Helm chart. These values correspond to the settings specified in the chart's `values.yaml` file. You'll need to provide appropriate values that fit your use case. This may include configurations for a MongoDB deployment if it's not automatically bundled with the Pritunl chart or if you are using an external database.

After writing your Pulumi program like the one shown above, you would run `pulumi up` in the CLI to deploy your Helm chart to the Kubernetes cluster. The Pulumi CLI will show you a preview of the changes, ask for confirmation, and then proceed with the deployment. Once the deployment is complete, Pulumi will output any exported values, such as the chart name in this case, which you can use to reference the deployment later.