What is Docker?

[david smith]

What is Docker and why is it so popular?

[zenita]

Hello,

Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications, whether on laptops, data center VMs, or the cloud. Docker can also be called as a container technology for Linux that allows a developer to package up an application with all of the parts it needs.

[BryanWalters]

Here is an infographic that will give you more idea about how Docker is helping developers