Post Syndicated from original https://lwn.net/Articles/905164/

Docker and other container
engines can greatly simplify many aspects of deploying a server-side
application, but numerous applications consist of more than one container.
Managing a group of containers only gets harder as additional applications
and services are deployed; this has led to the development of a class of
tools called container orchestrators. The best-known of these by far is Kubernetes; the history of container
orchestration can
be divided into what came before it and what came after.