Introduction to Docker
Docker is an open source container runtime system based on Linux containers. Linux containers use Linux kernel features such as namespaces, control groups (cgroups), and layered filesystems:
Namespaces and cgroups surround the containers that are to be isolated and limited; whereas a layered filesystem consists of what is shared and packaged inside the containers. When you consider the popularity of Docker, the following three essential features make it prominent:
The speed, vibrant ecosystem, and usability features of Docker make it the container runtime that comes to mind first. In order to learn about Docker in detail and use it, we need to cover some fundamental concepts next.
Note
You are required to have Docker Engine installed on your local system before starting on the fundamental concepts and the exercise. Download and install the Docker Desktop based on your local operating system from the Docker website at https://www.docker.com/products/docker-desktop.
Namespaces...
