Introduction to containerization

Containerization is an ability to build and package applications as shippable containers. Containers run in isolation in a user-mode using a shared kernel. A kernel is the heart of the operating system which accepts the user inputs and converts/translates them as processing instructions for CPU. In a shared kernel mode containers do the same as what VMs do to physical machines. They isolate the applications from the underlying OS needs. Let's see a few key implementations of this technology.