Deploy the goland helm chart on Linode Kubernetes Engine

Question

Pulumi · Accepted Answer

To deploy a Helm chart on Linode Kubernetes Engine using Pulumi, you'll need to do the following steps:

1. Set up your Linode account and create a Kubernetes cluster if you haven't already. You can use the Linode Cloud Manager for this purpose.
2. Configure Pulumi to use the Linode provider to manage resources on Linode.
3. Use Pulumi's Kubernetes provider to deploy the Helm chart to your Linode Kubernetes cluster.

Below is a Pulumi program written in TypeScript that demonstrates how to deploy a Helm chart on Linode Kubernetes Engine. We will be utilizing the `@pulumi/kubernetes` package to manage Kubernetes resources.

First, ensure you have the following prerequisites in place:

- Install [Pulumi CLI](https://www.pulumi.com/docs/get-started/install/).
- Install [Node.js](https://nodejs.org/).
- Configure Linode access by [creating an API token](https://www.linode.com/docs/guides/getting-started-with-the-linode-api/#get-an-access-token) and setting the `LINODE_TOKEN` environment variable.
- Set up a Kubernetes cluster on Linode and configure `kubectl` with the credentials to connect to your Linode Kubernetes cluster.

Then, you can use the following Pulumi program:

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

// Replace with the appropriate values for your Helm chart
const chartName = "example-chart";
const chartVersion = "1.0.0"; // Specify the chart version you wish to deploy
const chartRepo = "https://charts.example.com/"; // Replace with the Helm chart repository URL

// Deploy the Helm chart to the Linode Kubernetes cluster
const helmChart = new k8s.helm.v3.Chart(chartName, {
    chart: chartName,
    version: chartVersion,
    fetchOpts: {
        repo: chartRepo,
    }
    // If needed, you can specify additional options such as values, namespace, etc.
    // values: {
    //   key: "value",
    // },
    // namespace: "default",
});

// Export the name of the chart
export const helmChartName = helmChart.metadata.apply(metadata => metadata.name);
```

Here's what the program does step by step:

1. It imports the Pulumi Kubernetes library.
2. It defines some configuration variables:
   - `chartName` is the name of the Helm chart you want to deploy.
   - `chartVersion` is the version of the Helm chart you want to deploy.
   - `chartRepo` is the URL to the Helm repository where your chart is hosted.
3. It creates a new Helm chart instance via Pulumi's Kubernetes package:
   - `chart`: Specifies the name of the Helm chart.
   - `version`: Specifies the chart version.
   - `fetchOpts.repo`: Specifies the Helm chart's repository URL.
4. (optional) You can provide additional configurations such as custom values or specify a namespace if needed by uncommenting and adding to the `values` and `namespace` options.
5. Finally, it exports the name of the deployed Helm chart for easy access.

Replace 'example-chart', '1.0.0', and 'https://charts.example.com/' with the actual details of the Helm chart you wish to deploy.

To run this program:

1. Save the code to a file named `index.ts`.
2. Run `pulumi up` to execute the code and deploy the Helm chart to your Linode Kubernetes Engine cluster.

Remember to replace placeholder values with actual information about the Helm chart you wish to deploy. This includes the correct Helm chart name, version, and repository URL. If your Helm chart requires additional configuration values, uncomment the `values` section and provide the required values.