As many programming languages are invented and technologies evolve, this creates new challenges. There are different application stacks that require different hardware and software deployment environments. Often, there is a need to run applications across different platforms and migrate from one to another platform. Solutions require something that can run anything everywhere and is consistent, lightweight, and portable.
Just as shipping containers standardized the transport of freight goods, software containers standardize the transport of applications. Docker creates a container that contains everything a software application would need to be able to run all of its files, such as filesystem structure, daemons, libraries, and application dependencies. Containers isolate software from its surrounding development and staging environments. This helps to reduce conflicts between teams running different software on the same infrastructure.
VMs isolate...