How do I build a Kubernetes monitoring.coreos.com prometheusrule with Pulumi?
This guide will show you how to create a Kubernetes PrometheusRule
resource using Pulumi in TypeScript. The PrometheusRule
custom resource is part of the Prometheus Operator, which allows you to define alerting and recording rules for Prometheus.
Key Points:
- We will create a Kubernetes namespace.
- We will define a
PrometheusRule
resource with alerting rules. - The
PrometheusRule
will be created within the specified namespace.
Below is the complete Pulumi program to achieve this:
import * as pulumi from "@pulumi/pulumi";
import * as k8s from "@pulumi/kubernetes";
// Create a Kubernetes namespace
const namespace = new k8s.core.v1.Namespace("monitoring", {
metadata: {
name: "monitoring",
},
});
// Define a PrometheusRule resource
const prometheusRule = new k8s.apiextensions.CustomResource("prometheusRule", {
apiVersion: "monitoring.coreos.com/v1",
kind: "PrometheusRule",
metadata: {
name: "example-prometheusrule",
namespace: namespace.metadata.name,
},
spec: {
groups: [
{
name: "example.rules",
rules: [
{
alert: "ExampleAlert",
expr: "vector(1)", // This is a simple example rule
for: "5m",
labels: {
severity: "page",
},
annotations: {
summary: "This is an example alert",
},
},
],
},
],
},
});
Summary
In this guide, we created a Kubernetes namespace and a PrometheusRule
resource using Pulumi in TypeScript. The PrometheusRule
includes a simple alerting rule that triggers an alert if the condition specified in the expr
field is met. This setup is useful for monitoring and alerting in Kubernetes environments using Prometheus.
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