Deploy the webpagetest-agent helm chart on Oracle Kubernetes Engine (OKE)

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Pulumi · Accepted Answer

To deploy the `webpagetest-agent` Helm chart on Oracle Kubernetes Engine (OKE), you will need to perform the following high-level tasks:

1. **Set up an OKE cluster**: Ensure you have an OKE cluster running where you will deploy the Helm chart. This should be managed outside of the Pulumi program, as setting up an OKE cluster is a significant task on its own.

2. **Install Pulumi Kubernetes Provider**: The Pulumi Kubernetes Provider plugin must be installed in your environment, allowing Pulumi to manage resources within your Kubernetes cluster.

3. **Write a Pulumi program to deploy the Helm chart**: Write a TypeScript program using Pulumi to deploy the Helm chart to your existing OKE cluster. This involves importing the necessary packages, configuring access to your Kubernetes cluster, and using a `Chart` resource from Pulumi's Kubernetes provider to deploy the `webpagetest-agent` chart.

4. **Understand the Helm Chart Configuration**: Before deploying the Helm chart, make sure to familiarize yourself with its configuration options. If the `webpagetest-agent` chart requires specific configurations (like custom values for different parameters), you'll need to provide these as part of your Pulumi program.

Here's how you can write a Pulumi program in TypeScript to deploy the `webpagetest-agent` Helm chart on Oracle Kubernetes Engine:

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

// Provide a name for the Helm release and the Helm chart
const releaseName = "webpagetest-agent";
const chartName = "webpagetest-agent";

// You need to have the Kubernetes cluster's kubeconfig file in place or have context configured in .kube/config.
// The k8s.Provider class takes kubeconfig as an input to communicate with the cluster API server.
const provider = new k8s.Provider("oke-k8s-provider", {
    kubeconfig: "YOUR_KUBECONFIG_CONTENTS", // Replace with your kubeconfig file contents
});

// Utilize the `Chart` resource from the Pulumi Kubernetes library to deploy the Helm chart into the cluster
const webpagetestAgentChart = new k8s.helm.v3.Chart(releaseName, {
    chart: chartName,
    // If the chart is hosted on an external helm repository, provide the 'repo' option as well.
    // repo: "https://some-helm-repo-url/",
    // If you have specific values you wish to override in the Helm chart, specify them here.
    // values: {
    //     key: "value",
    //     ...
    // },
}, { provider });

// Optionally, you can export the status of the deployed Helm release. This can give you the deployed URLs or other related information.
export const helmReleaseStatus = webpagetestAgentChart.status;
```

Remember to replace `"YOUR_KUBECONFIG_CONTENTS"` with the actual kubeconfig content of your OKE cluster. This enables the Pulumi program to authenticate and interact with your cluster.

Also, replace any placeholder values within the `values` configuration object to customize the Helm chart deployment according to your needs. The `values` configuration corresponds to the configuration you'd typically provide in a `values.yaml` file when deploying a Helm chart manually.

To apply this Pulumi program:

1. Save the code in a file with a `.ts` extension, for example, `deployWebPageTestAgent.ts`.

2. Run `pulumi up` from the command line in the same directory as your program file.

This command will compile the TypeScript program to JavaScript, prompt you for any required configuration values, display a preview of the changes to be made, and finally apply those changes to deploy the chart to your Kubernetes cluster.