How do I build a kubernetes monitoring.coreos.com podmonitor with Pulumi?

In this guide, we will demonstrate how to create a PodMonitor resource in Kubernetes using Pulumi. The PodMonitor is a custom resource provided by the Prometheus Operator, which allows you to monitor the metrics of your pods.

Key Points:

• We will use the @pulumi/kubernetes package to interact with Kubernetes.
• We will define a PodMonitor resource to scrape metrics from pods with a specific label.
• The PodMonitor will be configured with a selector to target specific pods and a list of endpoints to scrape metrics from.

Steps:

1. Import the necessary Pulumi and Kubernetes packages.
2. Define the PodMonitor resource with the appropriate configuration.
3. Deploy the PodMonitor to the Kubernetes cluster.

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

// Define the PodMonitor resource
const podMonitor = new k8s.apiextensions.CustomResource("my-podmonitor", {
    apiVersion: "monitoring.coreos.com/v1",
    kind: "PodMonitor",
    metadata: {
        name: "my-podmonitor",
        namespace: "default", // Replace with your namespace
    },
    spec: {
        selector: {
            matchLabels: {
                app: "my-app", // Replace with your app label
            },
        },
        podMetricsEndpoints: [
            {
                port: "metrics", // Replace with the port exposing metrics
                path: "/metrics", // Replace with the metrics endpoint path
                interval: "30s",
            },
        ],
    },
});

// Export the PodMonitor name
export const podMonitorName = podMonitor.metadata.name;

Summary:

In this example, we created a PodMonitor resource using Pulumi to monitor the metrics of pods labeled with app: my-app. The PodMonitor is configured to scrape metrics from the /metrics endpoint on the metrics port at 30-second intervals. This setup is useful for integrating with Prometheus to collect and visualize pod metrics.