Deploy the ondat helm chart on Linode Kubernetes Engine

Question

Pulumi · Accepted Answer

To deploy the Ondat Helm chart on the Linode Kubernetes Engine (LKE) using Pulumi, you'll first need to have your Linode Kubernetes cluster set up and running. Assuming you already have that, we'll start by importing the necessary Pulumi packages to interact with Kubernetes resources.

In this program, we will be using the pulumi/kubernetes package, which provides resources to deploy and manage Kubernetes resources, including Helm charts. We will define a Helm chart resource, specifying the chart name (in this case, "ondat" or the appropriate name if different in the Helm repository) and other necessary configurations like the chart version and any custom values you need to pass to the Helm chart.

Here's a TypeScript Pulumi program that demonstrates how to deploy the Ondat Helm chart to an existing Linode Kubernetes cluster:

import * as k8s from "@pulumi/kubernetes";

// Create an instance of the Kubernetes provider pointing to your LKE cluster.
// This assumes that you've already configured `kubeconfig` to point to your LKE cluster.
const provider = new k8s.Provider("lke", {
  kubeconfig: '<YOUR_KUBECONFIG>',
});

// Deploy the Ondat Helm chart
const ondatChart = new k8s.helm.v3.Chart("ondat", {
  // Assuming 'ondat' is the chart name and it is available in a Helm Chart repository
  chart: "ondat",
  version: "<CHART_VERSION>",  // Replace with the desired version of Ondat chart
  // Override default configuration if necessary
  values: {
    // These are hypothetical values specific to the Ondat Helm Chart
    // Please replace them with actual values required by Ondat
    clusterDomain: "ondat.your-domain.com",
    storageClass: {
      isDefault: true
    },
    // ... more custom values
  }
}, { provider });

// Export the Ondat Helm release status
export const ondatStatus = ondatChart.status;

Make sure you replace <YOUR_KUBECONFIG> with the kubeconfig information for your LKE cluster. This allows Pulumi to communicate with your cluster. Also, replace <CHART_VERSION> with the specific version of the Ondat Helm chart you wish to deploy.

This program defines a Pulumi resource named ondatChart that represents a Helm chart deployment. We're specifically deploying the Ondat chart, specifying the version and providing any custom values required by the chart.

The values object should contain any configuration that Ondat needs for setup. Make sure to fill this object with the actual values required by the Helm chart. These values can be found in the Helm chart documentation or the values.yaml file of the Helm chart.

Note that the program also exports a stack output variable, ondatStatus, which will contain the deployment status of the Ondat Helm release. This can be useful to check the status of the deployment after running pulumi up.

Before you run this program, be sure to install the Pulumi CLI and log in to the Pulumi service where your state will be stored. To deploy the chart, you would run pulumi up in the same directory as this program. This will execute the code and provision the resources specified in the script on the Linode Kubernetes cluster.

Remember that working with Pulumi and Kubernetes assumes familiarity with Kubernetes concepts and the Kubernetes API. If you're new to Pulumi or infrastructure as code, the Pulumi Getting Started guide is a good place to begin your journey.