Deploy the xline helm chart on Linode Kubernetes Engine

To deploy a Helm chart onto a Kubernetes cluster, like the Linode Kubernetes Engine (LKE), you would need to follow several steps. Firstly, you need to have a Kubernetes cluster up and running. Linode provides an LKE service that allows you to quickly provision and manage clusters. Once your cluster is ready, Helm can be used to deploy your application to the cluster.

In the context of using Pulumi to perform this operation, we will:

1. Set up a Kubernetes cluster using Linode as the cloud provider.
2. Install and configure Helm.
3. Deploy the xline Helm chart to the Kubernetes cluster.

To begin with, you will need to have Pulumi installed and configured for use with Linode. You'll also need kubectl set up to interact with the cluster and Helm installed to manage the deployment.

Here's a Pulumi program in TypeScript that demonstrates how to create a new Kubernetes cluster on LKE and deploy the xline Helm chart. Please install node.js, npm and Pulumi, and set up your Linode credentials before running this program.

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

// Create a Linode Kubernetes Engine (LKE) cluster.
const cluster = new linode.LkeCluster("my-cluster", {
    k8sVersion: "1.19",
    label: "my-cluster",
    region: "us-central",
    tags: ["pulumi-cluster"],
    pool: [{
        type: "g6-standard-2",
        count: 3,
    }],
});

// Export the kubeconfig.
export const kubeconfig = cluster.kubeconfig;

// Create a provider for the created cluster.
const provider = new k8s.Provider("k8s", {
    kubeconfig: cluster.kubeconfig.apply(JSON.stringify),
});

// Deploy the `xline` Helm chart.
const xlineChart = new k8s.helm.v3.Chart("xline-chart", {
    repo: "xlinerepo", // You may need to replace this with the actual Helm repo for 'xline'
    chart: "xline",
    version: "0.1.0", // The chart version should be specified according to the chart you're using
}, { provider });

// Export the Helm chart resources.
export const chartResources = xlineChart.resources;

To run the Pulumi program:

1. Save the above code to a file, for example, index.ts.
2. Navigate to the directory containing your index.ts.
3. Run pulumi up to create the cluster and deploy the chart.

This program does the following:

• Defines an LKE cluster resource with a specific Kubernetes version, label, region, and node pool configuration. Note that node type and count are provided, determining the size and scale of your cluster.
• The kubeconfig is exported, which is essential for interacting with the cluster using kubectl.
• Sets up a Kubernetes provider instance connected to the newly created LKE cluster through the exported kubeconfig.
• Uses the Pulumi Kubernetes Helm package to define and deploy the xline Helm chart.

Before running this code, make sure to replace "xlinerepo" with the name of the Helm repository that holds the xline chart and "0.1.0" with the chart's version you want to deploy. You can find more details about the Helm chart deployment here.

Please note that this only covers the Pulumi code part. The management of Linode account credentials, installation of required CLI tools, and other preparatory setup are beyond the scope of this code example. Please refer to Linode and Pulumi documentation for guidance on those topics.