Deploy the puppet helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart on Kubernetes using Pulumi in TypeScript, you'll primarily use the `kubernetes.helm.v3.Chart` resource from the Pulumi Kubernetes provider. This resource allows you to deploy Helm charts from various sources such as a Helm repo, a local path, or even inline. Here we're assuming that you want to install a chart named "puppet" from a public or private repository.

Before diving into the code, make sure you have Pulumi and `kubectl` installed, along with the necessary access configured to your Kubernetes cluster. With Pulumi, you don't need to have Helm installed as Pulumi will manage the chart installation process.

Here's a step-by-step program that deploys the "puppet" Helm chart to your Kubernetes cluster:

1. Instantiate a chart using the `Chart` resource.
2. Define the name of the chart ("puppet") and optionally specify the repository if it's from a custom repository.
3. Provide any custom values that you need to override within the chart through the `values` property.
4. Ensure you specify the namespace where you want this chart to be deployed if it's not the default one.

Let's take a look at the program:

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

// Deploy the 'puppet' Helm chart on a Kubernetes cluster
const puppetChart = new kubernetes.helm.v3.Chart('puppet-chart', {
    // Replace with the correct repository URL or name if the chart is not in the default Helm repo
    // In this case, it is assumed 'puppet' is available in the public Helm repo
    chart: 'puppet',
    // Replace 'default' with the namespace where you want to install the chart
    namespace: 'default',
    // Provide any custom values you need for the chart here. This should be in the form of a nested object
    // as per the Values.yaml file in the chart you are trying to install.
    // For example:
    // values: {
    //   someKey: someValue,
    //   anotherKey: {
    //     nestedKey: nestedValue,
    //   },
    // },
});

// Export the Chart name
export const chartName = puppetChart.metadata.apply(metadata => metadata.name);
```

In this code, `puppet-chart` is the logical name given to the Helm chart deployment within Pulumi. The `chart` property is the actual name of the chart you want to deploy. The `namespace` property is the Kubernetes namespace where you want the chart resources to be created. And `values` is an optional property to provide any overrides to the default chart values.

When running this Pulumi program, Pulumi will communicate with your cluster to deploy the chart. After the deployment is successful, you'll be able to see all resources generated by the Helm chart in your cluster by using `kubectl` commands or via the Kubernetes Dashboard.

The line at the end exports the name of the chart as an output, which can be useful if you need to reference it in other parts of your Pulumi program.

Please replace placeholders and example values to fit your specific Puppet Helm chart configuration requirements, such as the repository URL, chart version, and value overrides.