Prometheus service discovery is critical for dynamic environments where targets change frequently. This guide explores two popular service discovery mechanisms: Consul and Kubernetes. For Consul, it covers how to configure Prometheus to automatically discover services registered in Consul, including filtering by tags and datacenters. For Kubernetes, it explains pod, service, and endpoint discovery using the Kubernetes API, with examples of relabeling and filtering. The article also addresses common pitfalls like authentication, rate limiting, and network policies. By the end, readers will understand how to set up robust, auto-discovering monitoring for containerized and service-mesh architectures. This is essential knowledge for any DevOps or SRE team managing production observability.
A comprehensive guide to configuring Prometheus service discovery with Consul and Kubernetes, including practical examples and best practices.