How Do I Build a Kubernetes Monitoring.coreos.com Prometheusrule With Pulumi?

Introduction

In this guide, we will demonstrate how to create a Kubernetes monitoring.coreos.com/v1 PrometheusRule resource using Pulumi in TypeScript. Prometheus is a powerful monitoring and alerting toolkit, and PrometheusRule is a custom resource definition (CRD) that allows you to define alerting and recording rules for Prometheus. Pulumi is an Infrastructure as Code (IaC) tool that enables you to define and manage cloud resources using familiar programming languages.

Step-by-Step Explanation

Step 1: Set Up Pulumi Project

First, ensure that you have Pulumi installed and set up on your machine. Create a new Pulumi project by running the following commands:

pulumi new typescript

Step 2: Install Kubernetes Provider

Next, install the Pulumi Kubernetes provider by running the following command:

npm install @pulumi/kubernetes

Step 3: Define PrometheusRule Resource

In your Pulumi program, import the necessary modules and define the PrometheusRule resource. The PrometheusRule resource will include specifications for alerting and recording rules.

Step 4: Configure Alerting and Recording Rules

Configure the alerting and recording rules within the PrometheusRule resource. These rules will define the conditions under which alerts are triggered and how metrics are recorded.

Step 5: Deploy the Pulumi Stack

Finally, deploy the Pulumi stack to create the PrometheusRule resource in your Kubernetes cluster by running the following command:

pulumi up

Key Points

• Pulumi allows you to define and manage cloud resources using TypeScript.
• The monitoring.coreos.com/v1 PrometheusRule resource is used to define alerting and recording rules for Prometheus.
• Ensure that you have the Pulumi Kubernetes provider installed in your project.
• Define the PrometheusRule resource with the necessary specifications for alerting and recording rules.
• Deploy the Pulumi stack to create the resource in your Kubernetes cluster.

Conclusion

In this guide, we demonstrated how to create a Kubernetes monitoring.coreos.com/v1 PrometheusRule resource using Pulumi in TypeScript. By following the step-by-step instructions, you can define and manage Prometheus alerting and recording rules in your Kubernetes cluster using Pulumi. This approach leverages the power of Infrastructure as Code to streamline the management of monitoring and alerting configurations.

Full Code Example

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

const prometheusRule = new k8s.apiextensions.CustomResource("prometheusRule", {
    apiVersion: "monitoring.coreos.com/v1",
    kind: "PrometheusRule",
    metadata: {
        name: "example-prometheus-rule",
        namespace: "default",
    },
    spec: {
        groups: [
            {
                name: "example.rules",
                rules: [
                    {
                        alert: "HighRequestLatency",
                        expr: "job:request_latency_seconds:mean5m{job=\"myjob\"} > 0.5",
                        for: "10m",
                        labels: {
                            severity: "page",
                        },
                        annotations: {
                            summary: "High request latency",
                        },
                    },
                    {
                        record: "job:http_inprogress_requests:sum",
                        expr: "sum by (job) (http_inprogress_requests)",
                    },
                ],
            },
        ],
    },
});

export const prometheusRuleName = prometheusRule.metadata.name;