Docker is an open source project, which packages applications and their dependencies in a virtual container that can run on any Linux server. Docker has immense possibilities as it facilitates the running of several OS's on the same server.
Technology is changing faster than styles in than fashion world, and there are many new entrants specific to the open source, cloud, virtualisation, and DevOps technologies. Docker is one of them. The aim of this article is to give you a clear idea of Docker, its architecture and its functions, before getting started with it.
Docker is a new open source tool based on Linux container technology(LXC), designed to change how you think about workload/application deployments. It helps you to easily create light-weight, self-sufficient, portable application containers that can be shared, modified and easily deployed to different infrastructure such as cloud/compute servers or bare metal servers. The Idea is to provide a comprehensive abstraction layer that allows developers to 'containerise' or 'package' any application and have it run on any infrastructure.
Docker is based on container virtualisation and it is not new. There is no better tool than Docker to help manage kernel level technologies such as LXC, cgroups and a copy-on-write filesystems. It helps us manage the complicated kernel layer technologies through tools and APIs.