Deploy the awsebsprovisioner helm chart on Linode Kubernetes Engine

Question

Pulumi · Accepted Answer

To deploy the `awsebsprovisioner` Helm chart to a Linode Kubernetes Engine (LKE) cluster using Pulumi, we'll break down the process into several steps:

1. Setup and Provision: You'll need to create an LKE cluster if you don't already have one. This setup uses Pulumi's Linode provider to create a Kubernetes cluster.
2. Install a Helm Chart: We'll use Pulumi's Kubernetes provider to deploy the `awsebsprovisioner` Helm chart to the provisioned LKE cluster.

Before starting with Pulumi, ensure you have Pulumi CLI installed and Linode access configured locally. As of my knowledge cutoff in early 2023, Linode does not manage Helm charts, but you can manage Kubernetes clusters on Linode and install Helm charts manually. For the sake of this example, I'm assuming the Helm chart `awsebsprovisioner` exists and is available in a remote repository.

First, install the necessary Pulumi packages for Linode and Kubernetes:

```bash
# For the Linode provider
pulumi plugin install resource linode v2.8.1

# For the Kubernetes provider
pulumi plugin install resource kubernetes v3.7.1
```

And their respective NPM packages to your Pulumi project:

```bash
npm install @pulumi/linode @pulumi/kubernetes
```

Now here's a detailed Pulumi TypeScript program to create an LKE cluster and deploy the `awsebsprovisioner` chart to it:

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

// Step 1: Create a Linode Kubernetes Engine cluster
// - The cluster will be created with default settings. You can customize 
//   the node type, number of nodes, and other settings as needed.
// - The example code assumes that you have set your Linode API token 
//   as an environment variable LINODE_TOKEN.

const cluster = new linode.LkeCluster("my-lke-cluster", {
  label: "my-cluster",
  k8sVersion: "1.20", // Use a supported Kubernetes version
  region: "us-central", // Specify the desired region
  tags: ["pulumi"],
  pool: {
    type: "g6-standard-2", // Specify the desired instance type for the nodes
    count: 3, // Set the number of nodes in the node pool
  },
});

// Export the kubeconfig to be able to interact with the cluster via kubectl
export const kubeConfig = cluster.kubeconfig;

// Step 2: Deploy the 'awsebsprovisioner' Helm chart using Pulumi Kubernetes provider
// - We'll first create a Kubernetes provider instance that uses the kubeconfig of our LKE cluster.
// - Then we'll deploy the Helm chart using the `Chart` resource of Pulumi's Kubernetes provider.

const lkeK8sProvider = new k8s.Provider("lkeK8sProvider", {
  kubeconfig: cluster.kubeconfig,
});

new k8s.helm.v3.Chart("awsebsprovisioner-chart", {
  repo: "exampleRepo", // The Helm chart repository, this should be changed to where your 'awsebsprovisioner' chart is located
  chart: "awsebsprovisioner", // The name of the chart in the repository
  version: "1.0.0", // Specify the chart version you want to deploy
  namespace: "kube-system", // The namespace where you want to install the Helm chart
}, { provider: lkeK8sProvider });

// After running `pulumi up`, the LKE cluster will be provisioned,
// and the `awsebsprovisioner` Helm chart will be deployed on it.
```

To run this program, save it to a file named `index.ts`, then execute `pulumi up` in your command line. Pulumi will show you a preview of the resources it will create. Confirm you want to create the resources, and Pulumi will provision the LKE cluster and deploy the Helm chart.

Keep in mind that the availability and configuration details of Helm charts may vary, and you may need to adapt the chart name, version, and repository to match your requirements.

This program will output the kubeconfig. You can use this to interact with your Kubernetes cluster using `kubectl` or in CI/CD pipelines to deploy additional services or perform other actions. Make sure to treat this output securely, as it provides administrative access to your Kubernetes cluster.