Introduction to Docker

Docker is an open source project that provides the tools and ecosystem for developers to build and run applications inside containers.

What are containers?

Containerization is a method of virtualization. Virtualization is a method of running a virtual instance of a computer system inside a layer abstracted from the hardware. Virtualization allows you to run multiple operating systems on the same physical host machine.

From the view of an application running inside a virtualized system, it has no knowledge or interaction with the host machine, and may not even know that it is running in a virtual environment.

Containers are a type of virtual system. Each container is allocated a set amount of resources...