learning-docker/notes/0_introduction.md

Introduction

What is Docker?

• Docker carves upa computer (linux) into sealed containers that run your code
• Containers are designed to be portable, to and from your computer
• Docker also builds these containers for you
• Docker is social platform that share and find containers
• Docker is not VM.

What is a Container?

• A self-contained sealed unit of software
• Contains everything required to run the code
• included Code, Configs, Processes, Networking, Dependencies, enough Linux OS

Docker is program that manage these containers

About Docker

• A client program, that named Docker
• A server program that manages a Linux system
• A program that build containers
• A service that distributes containers
• Company that create this software also named docker

Using the exercise files

reformat.sh in Ex_Files_Learning_Docker_Upd dir is for formatting the output using specialized environment variable