Deploy the kusk-gateway-dashboard helm chart on Google Kubernetes Engine (GKE)

Question

Pulumi · Accepted Answer

To deploy the `kusk-gateway-dashboard` Helm chart on Google Kubernetes Engine (GKE), we'll go through several steps:

1. Set up a new GKE Kubernetes cluster.
2. Deploy the necessary Helm chart to the cluster.

To accomplish these tasks, we'll use Pulumi's infrastructure as code framework with its GCP and Kubernetes packages.

First, you'll need to install the Pulumi CLI and set up your Google Cloud credentials. Since you're a novice, it would be good to familiarize yourself with [Pulumi's documentation](https://www.pulumi.com/docs/) and ensure you have an account on Google Cloud with the required permissions to create GKE clusters.

Here's a Pulumi program for you that carries out these two steps in TypeScript:

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

// Create a new GKE cluster
const cluster = new gcp.container.Cluster("my-gke-cluster", {
    initialNodeCount: 2,
    minMasterVersion: "latest",
    nodeVersion: "latest",
    nodeConfig: {
        machineType: "e2-medium",
        oauthScopes: [
            "https://www.googleapis.com/auth/compute",
            "https://www.googleapis.com/auth/devstorage.read_only",
            "https://www.googleapis.com/auth/logging.write",
            "https://www.googleapis.com/auth/monitoring"
        ],
    },
});

// Export the Cluster name
export const clusterName = cluster.name;

// Create a Kubernetes Provider pointing to the created GKE cluster
const k8sProvider = new k8s.Provider("gke-k8s", {
    kubeconfig: cluster.kubeconfig,
});

// Deploy the Helm chart for kusk-gateway-dashboard using the Kubernetes provider
const chart = new k8s.helm.v3.Chart("kusk-gateway-dashboard", {
    chart: "kusk-gateway-dashboard",
    // You'll usually specify the Helm chart repo URL here using `repo` property,
    // In this example, it's assumed that "kusk-gateway-dashboard" is available in the default repos.
    // If it's not the case, you will need to add 'repo' property with the URL of the Helm chart's repository.
    // Example: repo: "http://chart-repo-url/"
    version: "chart-version", // Replace with the version of the Helm chart you want to deploy
    // Add any custom values file or configuration specifically required for the kusk-gateway-dashboard chart
    values: { 
        /* ... */
    },
}, { provider: k8sProvider });

// Export the Helm Chart name
export const helmChartName = chart.name;
```

This program does the following:
- Imports the necessary Pulumi libraries.
- Creates a new GKE cluster with an initial node count of 2. We're using `e2-medium` machines for the nodes which is a good balance of resource allocation for a starting point.
- Exports the cluster name as a stack output, which can be useful for querying the cluster details later.
- Configures a Kubernetes provider which will be used to interact with the newly created GKE cluster.
- Deploys the `kusk-gateway-dashboard` Helm chart to the GKE cluster using the Pulumi Kubernetes provider. This assumes that the `kusk-gateway-dashboard` chart is available in Helm's default repositories.
- Exports the Helm chart name as a stack output.

Before running this program, you would replace `"chart-version"` with the specific version of the Helm chart you wish to deploy, and you may need to provide the `repo` and `values` if you have a custom values.yaml or if the chart is hosted in a non-default Helm repo.

To run this program, save it to a file such as `index.ts`, open your terminal in the directory containing your `index.ts` file and run the following commands:

```bash
pulumi stack init dev                     # Set up a new stack for your deployment
pulumi up                                 # Preview and deploy changes
```

Pulumi will perform the deployment for you, spinning up the required resources on Google Cloud.

Remember, managing cloud resources can incur costs, so be sure to shut down the resources if they are no longer needed to avoid unnecessary charges. To destroy the resources, you can run:

```bash
pulumi destroy                           # Tear down resources
```

With the `pulumi up` command, you will see an output with the details of what resources will be created. After reviewing and approving the plan, Pulumi will provision a GKE cluster and deploy your Helm chart to it.