https://artazar.pages.dev/tags/observability/ Recent content in Observability on DevOps & Rock'N'Roll Hugo en Wed, 19 Aug 2026 15:55:02 +0700 https://artazar.pages.dev/blog/05-node-exporter-labels/ Wed, 04 Mar 2026 00:08:30 +0000 https://artazar.pages.dev/blog/05-node-exporter-labels/ <p>Running a multipurpose Kubernetes cluster where production, dev and infra workloads share the same infrastructure is pretty common. In such a setup, you often want your alerting rules to be smarter: fire a critical alert when a prod node is burning CPU, but keep it informational for a dev node. To do that, you need your Prometheus metrics to carry environment context. This post shows how to thread that label all the way from a Karpenter node pool down to the Prometheus alert.</p>