1. Deploy the oracledb-exporter helm chart on Digital Ocean Kubernetes Service


    Deploying the oracledb-exporter Helm chart on Digital Ocean Kubernetes Service (DOKS) involves several steps, which include setting up the Kubernetes cluster on Digital Ocean and then using the Helm chart resource type from the kubernetes package to deploy oracledb-exporter.

    First, you need to create a Kubernetes cluster on Digital Ocean. Pulumi allows you to define this infrastructure using code, which can be versioned and reused. You'll be using the digitalocean.KubernetesCluster resource to create a new cluster.

    After setting up the cluster, you need to deploy the oracledb-exporter Helm chart onto it. For this, Pulumi provides the kubernetes.helm.sh/v3.Chart resource type that can be used to deploy Helm charts.

    Here's a comprehensive program in TypeScript that accomplishes these tasks:

    import * as pulumi from "@pulumi/pulumi"; import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; // Create a Digital Ocean Kubernetes Cluster const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: "nyc3", version: "latest", nodePool: { name: "default", size: "s-1vcpu-2gb", // This is the smallest node size available nodeCount: 2, // Number of nodes in the node pool }, }); // Once the cluster is created, you can configure Pulumi to use the cluster's kubeconfig. // This will be used for Helm chart deployment. const k8sProvider = new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig, }); // Deploy the oracledb-exporter helm chart const oracledbExporterChart = new kubernetes.helm.sh.v3.Chart("oracledb-exporter", { chart: "oracledb-exporter", // Specify the repository containing the Helm chart fetchOpts: { repo: "https://helm-repository-where-oracledb-exporter-is-hosted.com", }, // Alternatively, you can specify chart version, values, and other configuration parameters directly in the Chart resource. }, { provider: k8sProvider }); // Export the cluster's kubeconfig and endpoint export const kubeconfig = cluster.kubeConfigs[0].rawConfig; export const endpoint = cluster.endpoint; // Now you can access the cluster using the kubeconfig and deploy workloads.

    Explanation of the resources used and why:

    • digitalocean.KubernetesCluster: This resource is used to create a Kubernetes cluster on the Digital Ocean platform. In this example, the cluster is created in the nyc3 region with the latest version of Kubernetes. The node pool is configured with a specific machine size and count, setting the desired capacity for the cluster.

    • kubernetes.Provider: This is a Pulumi provider that is responsible for the deployment and management of Kubernetes resources. It is configured with the kubeconfig of the just-created Digital Ocean Kubernetes cluster, allowing subsequent resources to be deployed into this cluster.

    • kubernetes.helm.sh/v3.Chart: This resource is used to deploy a Helm chart, which is a package containing pre-configured Kubernetes resources. In this case, the oracledb-exporter chart is specified. The fetchOpts property allows you to provide the repository URL where the Helm