1. Deploy the kubeteach-core helm chart on Kubernetes


    To deploy the kubeteach-core Helm chart on a Kubernetes cluster using Pulumi, we’ll be taking the following steps:

    1. Set up a Pulumi Kubernetes Provider to interact with your Kubernetes cluster.
    2. Use the helm.v3.Chart resource from the Pulumi Kubernetes provider to deploy the kubeteach-core Helm chart.

    Make sure you have Pulumi installed and configured for use with your Kubernetes cluster. You also need to have Helm installed, as it's necessary to work with Helm charts.

    Below is a TypeScript program that uses Pulumi to deploy the kubeteach-core Helm chart. This program assumes you've already set up your Kubernetes cluster and it's accessible via kubectl on your local machine. For the helm.v3.Chart resource to work, Pulumi will use the active context in your kubeconfig file which kubectl uses to communicate with your Kubernetes cluster.

    Here's a detailed breakdown of the code:

    • import * as k8s from "@pulumi/kubernetes": This line imports the Kubernetes package from Pulumi which contains the necessary methods to interact with your Kubernetes cluster.

    • new k8s.helm.v3.Chart(...): We're creating a new Helm chart resource. This is the Pulumi representation of a Helm deployment. We pass several parameters to configure the deployment:

      • name: A unique name for the Helm chart deployment in Pulumi, not to be confused with the Helm release name.
      • chart: The name of the Helm chart to deploy. In this case, it's kubeteach-core.
      • version: If you have a specific version of the chart to deploy, include it here. Otherwise, it will use the latest version.
      • repositoryOpts: Since kubeteach-core isn't included in the default Helm repositories, you'll need to specify the repository information. Replace "<REPO_URL>" with the actual URL of the Helm repository which hosts kubeteach-core.

    You might also need to add other optional parameters, like namespace if you want to deploy the chart in a specific Kubernetes namespace (instead of the default one), or values if you want to override default values of the Helm chart.

    Now let’s see how this code looks:

    import * as pulumi from '@pulumi/pulumi'; import * as k8s from '@pulumi/kubernetes'; // Create a Kubernetes Provider that uses the current context in your kubeconfig const k8sProvider = new k8s.Provider('k8s-provider', { kubeconfig: pulumi.output(k8s.config.getKubeconfig()).apply(c => c), }); // Define the Helm chart for kubeteach-core const kubeteachChart = new k8s.helm.v3.Chart('kubeteach-core', { chart: 'kubeteach-core', // Specify the version of the chart you want to deploy // version: 'x.x.x', (Optional: Use only if you want to deploy a specific version) // (Optional) If the chart requires a specific namespace, uncomment the next line and provide a namespace name // namespace: '<YOUR_NAMESPACE>', fetchOpts:{ repo: '<REPO_URL>', // Replace '<REPO_URL>' with the URL of the Helm repository hosting kubeteach-core chart }, }, { provider: k8sProvider }); // Export the name of the deployed Helm release export const kubeteachReleaseName = kubeteachChart.getResourceProperty("v1/Service", "kubeteach-core", "metadata").apply(m => m.name);

    Replace '<REPO_URL>' with the actual Helm repository URL where the kubeteach-core chart is located.

    The last line of the code exports the name of the service created by the Helm chart. This could be useful for accessing the service later or configuring other resources to interact with the deployed kubeteach-core.

    Make sure to install the required Pulumi packages before running the code. You can use the following commands in your terminal:

    pulumi new kubernetes-typescript # Sets up a new Pulumi project using the template npm install @pulumi/kubernetes # Installs Kubernetes plugin for Pulumi

    Once everything is set up, you can run the Pulumi program to deploy the Helm chart:

    pulumi up

    This command starts the deployment process and shows you a preview of the resources that Pulumi will create or modify. After verifying the changes, you can confirm to proceed with the actual deployment.