A Beginner’s Guide to Docker — Docker vs VM
In the world of modern software development, two key technologies often find themselves in the spotlight: Docker and Virtual Machines (VMs). But what sets them apart, and how do they influence the development landscape?
In this article, we embark on a journey to see the inner workings of Docker and VMs. By understanding how these technologies operate, we can make informed decisions on when and where to use them. To kick off this exploration, let’s begin with the basics — a fundamental understanding of what makes up an operating system.
Docker’s Application-Level Virtualization
Docker, often described as a containerization tool, operates in a unique manner, primarily at the application level of the operating system.
To comprehend Docker’s approach, it’s crucial to grasp the composition of an operating system:
A kernel layer that communicates with hardware components like the CPU and memory, and an applications layer where your software runs.
While numerous Linux distributions exist, each with its graphical user interface and file system nuances, they all share a common kernel. Docker, as well as virtual…
