Deploy the cassandra-web helm chart on Google Kubernetes Engine (GKE)

Question

Pulumi · Accepted Answer

To deploy the `cassandra-web` Helm chart on Google Kubernetes Engine (GKE), you'll need to set up the following:

1. A GKE cluster where your Helm chart will be deployed.
2. Configuration for Helm and Kubernetes in Pulumi to manage deployments.
3. The actual Helm chart configuration and deployment using Pulumi's Helm package.

First, ensure you have Pulumi installed, as well as `kubectl` configured to manage your Kubernetes clusters. You should also have access to a Google Cloud Platform (GCP) project and have the `gcloud` CLI tool authenticated with your account.

Below is a Pulumi TypeScript program that demonstrates how to create a GKE cluster and deploy a Helm chart onto that cluster. Note that before running this program, you need to have the Pulumi CLI configured with your choice's Google Cloud project and credentials.

This program does the following:

- Sets up a new GKE cluster. This is where your Cassandra web interface will run.
- Installs the Helm chart for `cassandra-web` into the cluster, assuming it's available in a Helm chart repository.

Remember, before you run this program, you need to:

- Install Node.js and npm.
- Install Pulumi.
- Configure Pulumi with GCP access.
- Update cluster details like the machine type, region/zone according to your GCP project.

Here is the program:

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

// Create a GKE cluster
const cluster = new gcp.container.Cluster("my-gke-cluster", {
    initialNodeCount: 2,
    nodeVersion: "latest",
    minMasterVersion: "latest",
    nodeConfig: {
        machineType: "n1-standard-1", // Specify the machine type according to your needs
        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;

// Obtain the Kubeconfig for the newly created GKE cluster
const kubeconfig = pulumi.
    all([cluster.name, cluster.endpoint, cluster.masterAuth]).
    apply(([name, endpoint, masterAuth]) => {
        const context = `${gcp.config.project}_${gcp.config.zone}_${name}`;
        return `apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: ${masterAuth.clusterCaCertificate}
    server: https://${endpoint}
  name: ${context}
contexts:
- context:
    cluster: ${context}
    user: ${context}
  name: ${context}
current-context: ${context}
kind: Config
preferences: {}
users:
- name: ${context}
  user:
    auth-provider:
      config:
        cmd-args: config config-helper --format=json
        cmd-path: gcloud
        expiry-key: '{.credential.token_expiry}'
        token-key: '{.credential.access_token}'
      name: gcp
`;
    });

// Create a Kubernetes provider instance using the kubeconfig
const k8sProvider = new k8s.Provider("gkeK8s", {