Source:- techrepublic.com The widespread adoption of containers has changed the orthodoxy of IT—administrators do not need to run multiple virtual machines to create a barrier between applications or users, nor are programmers beholden to languages such as Java, which have their own strategy for process isolation and lifecycle management. Leading the way in this change is Docker, an open-source utility that automates the deployment and management of programs inside software containers. Docker is also the center of the container ecosystem,