1. Deploy the seldon-core-crd helm chart on Digital Ocean Kubernetes Service

    TypeScript

    To deploy the seldon-core-crd Helm chart on Digital Ocean Kubernetes Service using Pulumi, you would first need a Kubernetes cluster on Digital Ocean. Then, you can use @pulumi/kubernetes to deploy the helm chart to that cluster. Here's a step-by-step guide on how you can accomplish this:

    1. Setting up the Digital Ocean Kubernetes Cluster

      First, you'll need to provision a Digital Ocean Kubernetes (DOKS) cluster. We will be using the digitalocean.KubernetesCluster resource from the @pulumi/digitalocean package for this purpose. We choose this resource because it provides all required configuration options to create a managed Kubernetes cluster in Digital Ocean.

    2. Installing the seldon-core-crd Helm Chart

      Once the Kubernetes cluster is set up, the next step is to install seldon-core-crd. We'll use the kubernetes.helm.v3.Chart resource from the @pulumi/kubernetes package. This resource allows you to provide the chart name, version, and other configurations directly, and Pulumi will manage the Helm release for you.

    Below is a Pulumi program in TypeScript that sets up a Digital Ocean Kubernetes cluster and deploys the seldon-core-crd Helm chart to it:

    import * as digitalocean from "@pulumi/digitalocean"; import * as kubernetes from "@pulumi/kubernetes"; import * as pulumi from "@pulumi/pulumi"; // Step 1: Create a new Digital Ocean Kubernetes cluster const cluster = new digitalocean.KubernetesCluster("do-cluster", { region: "nyc3", version: "latest", // Specify the desired Kubernetes version or use "latest" nodePool: { name: "default", size: "s-2vcpu-2gb", // This is the Droplet size to use for workers (check Digital Ocean pricing page for more sizes) nodeCount: 2, // The number of Droplet workers to provision }, }); // Step 2: Use the kubeconfig from the generated cluster to interact with it using the Kubernetes provider const k8sProvider = new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig, }); // Step 3: Deploy the seldon-core-crd Helm chart const chart = new kubernetes.helm.v3.Chart("seldon-core-crd", { chart: "seldon-core-crd", version: "1.11.0", // Replace with the desired version of the Helm chart fetchOpts: { repo: "https://storage.googleapis.com/seldon-charts" }, // Optionally, specify the values for the Helm chart customizations values: { // Add customizations here if needed }, }, { provider: k8sProvider }); // Export the public IP of the cluster to access it externally export const clusterEndpoint = cluster.endpoint; // Export the kubeconfig to interact with the cluster through kubectl export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

    How to use this code:

    • You need to have Pulumi installed and configured with Digital Ocean access.
    • Store this code in an index.ts file in a new Pulumi project directory.
    • The program specifies a s-2vcpu-2gb size for the Droplets, which are the worker nodes in the cluster. This is a general-purpose size, but you should adjust it as per your workload requirements.
    • The version field in the Helm chart is set to a specific version (1.11.0). You should update this field to the version of seldon-core-crd you want to deploy, or remove the version field to deploy the latest version.
    • The values object in the Helm chart is left empty, but you can fill it in if you need to customize the Helm chart's configuration parameters.
    • The kubeconfig export allows you to interact with the cluster using kubectl once it's set up. It's printed as output when you run pulumi up.

    To deploy this configuration:

    1. Initialize a new Pulumi project in your terminal using pulumi new typescript.
    2. Copy and paste the code above into your index.ts file in your Pulumi project.
    3. Run pulumi up to preview and deploy the changes.
    4. Once the deployment is finished, you can get the Kubernetes cluster endpoint and the kubeconfig file from the Pulumi stack's outputs.

    This code sets up the infrastructure and deploys seldon-core-crd in a repeatable and codified manner. With Pulumi, you can track the state of your deployment, manage changes through code, and automate complex provisioning tasks.


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