Introducing Docker

Docker is a tool that helps you to create, deploy, and run applications by using containers. It was designed with the view to benefit both developers and system administrators in accordance with the DevOps philosophy. Docker helps to improve the software delivery process by solving some important concerns related with it. One of those concerns is the idea of immutable delivery, which is related to something called it works for me. It is especially important that a developer uses the same image for their tests as the one that is used in production when working in Docker. The only difference that should be seen is during configuration. Software delivery in an immutable delivery pattern seems to be particularly important for a microservices-based system as there are many applications deployed independently. Thanks to Docker, developers can now focus on writing code without worrying about the target OS (where the application would be launched). The operation can, therefore...