Fragmentation in microservices environments leads to a patchwork of disconnected environments in the software development lifecycle, causing maintenance overhead and drift from the production environment.
The tension between complexity, speed, and realism led to the current scattered mess of environments that don't communicate effectively and don't match production, leading to ongoing toil and infrastructure challenges.
The emergence of tools like Kubernetes and service meshes like Istio and Linkerd enables developers to unify environments, run isolated service versions, and create high-fidelity environments quickly, offering a better path to simplify platform engineering.
Moving towards a unified, production-like environment shared across development, testing, and validation stages can significantly improve developer satisfaction, reduce infrastructure costs, and accelerate delivery, as seen in organizations like Brex and Signadot.