Deploy the ztncui helm chart on Linode Kubernetes Engine

Question

Pulumi · Accepted Answer

Deploying a Helm chart on a Kubernetes cluster managed by Linode Kubernetes Engine (LKE) can be done using Pulumi with the Kubernetes provider. Pulumi allows you to define infrastructure using familiar programming languages, including TypeScript, which we will use for this solution.

We will perform the following steps in this Pulumi program:

Set up a Kubernetes provider to communicate with the LKE cluster.
Deploy the ztncui Helm chart to the cluster using Pulumi's Chart resource from the @pulumi/kubernetes package.

Before you run the following program, you must have the following prerequisites in place:

Have Pulumi installed and configured on your machine.
Have access to your Linode Kubernetes Engine with kubeconfig configured locally or the appropriate permissions set in the cloud environment where Pulumi runs.
Have the Helm chart repository that contains the ztncui Helm chart available to provide it to Pulumi.

Below is the TypeScript program for deploying the ztncui Helm chart on LKE:

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

// Assuming your kubeconfig file is configured to point to your Linode Kubernetes cluster,
// Pulumi uses this configuration to communicate with your Kubernetes cluster.
const provider = new k8s.Provider("lke-provider", {
    kubeconfig: <your-kubeconfig>, // Replace `<your-kubeconfig>` with the actual kubeconfig contents or file path if needed
});

// Deploy the ztncui Helm chart using the Chart resource.
const ztncuiChart = new k8s.helm.v3.Chart("ztncui-chart", {
    // Replace `<repo-name>` with the name of the repository that contains the ztncui chart
    // and `<chart-name>` with the name of the chart in the repository.
    repo: "<repo-name>",  
    chart: "<chart-name>",
    // Specify the version of the chart if needed.
    version: "<chart-version>",
    // Pass any custom values needed for the chart.
    values: {
        // Specify any values that the chart requires.
        // For example:
        // service: {
        //     type: "ClusterIP",
        // },
    },
}, { provider });

// Export the base URL of the ztncui service. This assumes the ztncui Helm chart exposes a service.
export const ztncuiServiceUrl = pulumi.interpolate`http://${ztncuiChart.getResourceProperty(
    "v1/Service", "ztncui-service", "status").apply(status => status.loadBalancer.ingress[0].ip)}`;

In this program:

We import the required Pulumi modules for Kubernetes.
We set up a Kubernetes provider to interface with the LKE.
We deploy the ztncui Helm chart using the Chart resource from Pulumi's Kubernetes provider.
We assume that the Helm chart exposes a service and export its URL. You might need to adjust the export depending on the actual service details exposed by your Helm chart.

Please replace <your-kubeconfig>, <repo-name>, <chart-name>, and <chart-version> with actual values specific to your setup. The values object is where you can pass any custom configuration that the ztncui Helm chart accepts.

You can run this Pulumi program by saving it as index.ts and executing pulumi up in the same directory, which will prompt Pulumi to perform the deployment.

Keep in mind that this is a generic solution and certain aspects like repo, chart, and values are placeholders that you would need to replace with specifics relevant to deploying ztncui.