1. Deploy the pgbench helm chart on Digital Ocean Kubernetes Service


    To deploy the pgbench Helm chart on the DigitalOcean Kubernetes Service using Pulumi, you will need to perform the following steps:

    1. Create a new DigitalOcean Kubernetes cluster.
    2. Install the Helm chart for pgbench into the Kubernetes cluster.

    I will be crafting a Pulumi program in TypeScript, which will execute the above steps. Before you run this program, please ensure that you have the following prerequisites:

    • Pulumi CLI installed and set up to work with your DigitalOcean account.
    • Access to your DigitalOcean account and personal access tokens generated with read and write permissions.
    • Helm CLI installed locally if you need to fetch any Helm chart values or configurations beforehand.

    Please note that pgbench is a benchmarking tool for PostgreSQL. The assumption here is that you want to deploy a Helm chart named pgbench. If pgbench does not have a designated Helm chart, you will need to either create one or use an existing PostgreSQL chart and configure it to perform benchmarking.

    Below is the detailed Pulumi program:

    import * as digitalocean from '@pulumi/digitalocean'; import * as pulumi from '@pulumi/pulumi'; import * as kubernetes from '@pulumi/kubernetes'; // Define the configuration variables for the DigitalOcean cluster const clusterName = 'do-pgbench-cluster'; const region = 'nyc1'; // New York City region; change this to your preferred region const nodeSize = 's-2vcpu-2gb'; // The size identifier for the nodes in the Kubernetes cluster const nodeCount = 2; // The number of nodes to deploy in the Kubernetes cluster // Create a new DigitalOcean Kubernetes cluster const cluster = new digitalocean.KubernetesCluster(clusterName, { region: region, version: 'latest', // Use the latest available Kubernetes version nodePool: { name: 'default', size: nodeSize, nodeCount: nodeCount, }, }); // Create a new Kubernetes provider instance that uses the generated kubeconfig from our cluster const k8sProvider = new kubernetes.Provider('k8s-provider', { kubeconfig: cluster.kubeConfigs[0].rawConfig, }); // Deploy the 'pgbench' Helm chart on our DigitalOcean Kubernetes cluster const pgbenchChart = new kubernetes.helm.v3.Chart('pgbench', { chart: 'pgbench', // This should be the actual chart name if it exists version: '1.0.0', // Specify the version of the chart you wish to deploy // If 'pgbench' does not have an official chart, you can use another PostgreSQL chart // and customize the values.yaml to perform the benchmarking. namespace: 'default', // The namespace to deploy the chart into values: { // You would place your custom Helm values here, following the schema of the chart. }, }, { provider: k8sProvider }); // Export the cluster's kubeconfig and endpoint so that they can be used to interact with the cluster export const kubeconfig = cluster.kubeConfigs[0].rawConfig; export const endpoint = cluster.endpoint;

    Here's a breakdown of what the Pulumi program is doing:

    1. Imports the necessary Pulumi libraries for DigitalOcean (@pulumi/digitalocean) and Kubernetes (@pulumi/kubernetes).
    2. Establishes configuration variables (such as the cluster name, region, node size, and node count) required for creating a Kubernetes cluster in DigitalOcean.
    3. Provisions a new Kubernetes cluster using the digitalocean.KubernetesCluster resource. The cluster's version is set to the latest, and it includes a default node pool with the defined specifications from the configuration variables.
    4. Sets up a new kubernetes.Provider, which uses the kubeconfig of the newly created cluster, allowing you to interact with this Kubernetes cluster using Pulumi.
    5. Deploys the pgbench Helm chart (hypothetical in this context, as it requires an actual existing chart) onto the DigitalOcean Kubernetes cluster using the helm.v3.Chart resource. You would need to replace 'pgbench' with the actual chart name and provide the corresponding values.
    6. Exports the kubeconfig and Kubernetes API endpoint for the cluster to allow further interactions such as using kubectl or other Kubernetes tools.

    Remember to replace placeholder values like the chart name and values with the actual chart information and customization options specific to pgbench. If pgbench does not have its Helm chart, you will need to use a PostgreSQL chart and configure it accordingly.

    This Pulumi program should be saved in a file (e.g., index.ts), and then you can use the Pulumi CLI to create and deploy the stack. After that, you can run the standard Pulumi commands (pulumi up to deploy, pulumi destroy to cleanup, etc.) in your terminal to interact with your infrastructure.