Service discovery is the ability to locate the address of one or more Pods from within other Pods as well as the external world—the Internet. Kubernetes provides a Service controller to satisfy service discovery and connectivity use cases such as Pod-to-Pod, LAN-to-Pod, and Internet-to-Pod.
Service discovery is a necessity because Pods are volatile; they may be created and destroyed many times over throughout their life cycle, acquiring different IP address each time. The self-healing and scaling nature of Kubernetes also means that we often want a virtual IP address—and ...
