Docker is a platform for developers and sysadmins to build, run, and share applications with containers. The use of containers to deploy applications is called containerization.

Containerization is increasingly popular because containers are: Fundamentally, a container is nothing but a running proc ess, with some added encapsulation features applied to it in order to keep it isolated from the host and from other containers. One of the most important aspects of container isolation is that each container interacts with its own private filesystem; this filesystem is provided by a Docker image.

you have successfully learned how to install Docker in Ubuntu and deploy your first Docker Container.

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