Docker LogoDocker is open source software, provided by Docker Inc., which is designed to make it easier to create, deploy and run applications using containers. Containers allow a developer to package up an application with all of the parts it needs, such as libraries and other dependencies, and deploy it as one package.

Unlike virtual machines, a container does not need to incorporate a virtual operating system, but instead relies on aspects of the operating system that they are running on, therefore making containers much more lightweight when compared with virtual machines.

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