1. Deploy the Data on Kuberenetes K8ssandra Chart helm chart on Google Kubernetes Engine (GKE)


    To deploy the DataStax Kubernetes K8ssandra chart on Google Kubernetes Engine (GKE), you'll first need to set up a GKE cluster and configure your environment to use Helm, a package manager for Kubernetes that streamlines installing and managing Kubernetes applications. K8ssandra is a Helm chart that packages all the components you'll need for deploying Apache Cassandra on Kubernetes along with management and monitoring tools.

    Here is a detailed walkthrough of a Pulumi TypeScript program that accomplishes this:

    1. Set up the GKE cluster: You will utilize the google-native.container/v1.Cluster resource to create a new Google Kubernetes Engine cluster.
    2. Create a Kubernetes Provider: Once the GKE cluster is created, we’ll instantiate a Kubernetes provider to interact with it.
    3. Use the Helm Chart Resource: With both the GKE cluster and the Kubernetes provider set up, you can use the kubernetes.helm.v3.Chart resource from Pulumi’s Kubernetes provider to deploy the K8ssandra Helm chart.

    Below you will find the complete TypeScript program that performs these steps:

    import * as pulumi from '@pulumi/pulumi'; import * as gcp from '@pulumi/gcp'; import * as k8s from '@pulumi/kubernetes'; // Step 1: Create a new GKE cluster const cluster = new gcp.container.Cluster("k8ssandra-cluster", { initialNodeCount: 3, minMasterVersion: "latest", nodeVersion: "latest", nodeConfig: { preemptible: false, machineType: "n1-standard-2", oauthScopes: [ "https://www.googleapis.com/auth/compute", "https://www.googleapis.com/auth/devstorage.read_only", "https://www.googleapis.com/auth/sqlservice.admin", "https://www.googleapis.com/auth/service.management.readonly", "https://www.googleapis.com/auth/servicecontrol", "https://www.googleapis.com/auth/logging.write", "https://www.googleapis.com/auth/monitoring", ], }, }); // Output the GKE cluster name export const k8sClusterName = cluster.name; // Step 2: Create a Kubernetes provider that uses the GKE cluster const k8sProvider = new k8s.Provider("k8sProvider", { kubeconfig: cluster.kubeConfigRaw, }); // Step 3: Deploy K8ssandra Helm chart using Pulumi's Helm Chart resource const chart = new k8s.helm.v3.Chart("k8ssandra", { chart: "k8ssandra", version: "3.11.11", // specify the version you need for K8ssandra fetchOpts: { repo: "https://helm.k8ssandra.io/", }, }, { provider: k8sProvider }); // Export the Helm chart name export const k8ssandraHelmChart = chart.getResource("v1/Service", "k8ssandra-k8ssandra");

    Explanation of the program:

    • GKE Cluster: The gcp.container.Cluster resource is used to create a cluster in GKE. We specify the number of nodes, machine type, and OAuth scopes. This cluster will then run the K8ssandra chart.

    • Kubernetes Provider: The k8s.Provider resource points Pulumi to the cluster we’ve created, so subsequent resources will be deployed there.

    • Helm Chart: The k8s.helm.v3.Chart resource is responsible for fetching the K8ssandra chart from the provided Helm repository and deploying the chart into the GKE cluster.

    • Exported Values: We export the cluster name and the Service associated with the K8ssandra Helm chart so that you can easily access these values from the Pulumi stack.


    After running the Pulumi program with pulumi up, Pulumi will provision the GKE cluster and deploy the K8ssandra Helm chart onto it. It might take a few minutes for everything to get set up.

    Once complete, you can verify the status of your GKE cluster and the K8ssandra Helm release:

    1. Check the GKE cluster in the Google Cloud Console.
    2. Use kubectl to list all the resources deployed by the K8ssandra Helm chart to ensure they're running.

    Remember to install kubectl and configure it to connect to your new GKE cluster if you want to interact with your Kubernetes resources manually. You can find the kubeconfig needed for this in the output of your Pulumi deployment or by using the Google Cloud CLI.