Book Image

Learn Docker - Fundamentals of Docker 19.x - Second Edition

By : Dr. Gabriel N. Schenker
Book Image

Learn Docker - Fundamentals of Docker 19.x - Second Edition

By: Dr. Gabriel N. Schenker

Overview of this book

Containers enable you to package an application with all the components it needs, such as libraries and other dependencies, and ship it as one package. Docker containers have revolutionized the software supply chain in both small and large enterprises. Starting with an introduction to Docker fundamentals and setting up an environment to work with it, you’ll delve into concepts such as Docker containers, Docker images, and Docker Compose. As you progress, the book will help you explore deployment, orchestration, networking, and security. Finally, you’ll get to grips with Docker functionalities on public clouds such as Amazon Web Services (AWS), Azure, and Google Cloud Platform (GCP), and learn about Docker Enterprise Edition features. Additionally, you’ll also discover the benefits of increased security with the use of containers. By the end of this Docker book, you’ll be able to build, ship, and run a containerized, highly distributed application on Docker Swarm or Kubernetes, running on-premises or in the cloud.
Table of Contents (25 chapters)
1
Section 1: Motivation and Getting Started
4
Section 2: Containerization, from Beginner to Black Belt
11
Section 3: Orchestration Fundamentals and Docker Swarm
18
Section 4: Docker, Kubernetes, and the Cloud

Running your development environment inside a container

Imagine that you only have access to a workstation with Docker for Desktop installed, but no possibility to add or change anything else on this workstation. Now you want to do some proof of concepts and code some sample application using Python. Unfortunately, Python is not installed on your computer. What can you do? What if you could run a whole development environment inside a container, including code editor and debugger? What if, at the same time, you could still have your code files on your host machine?

Containers are awesome and genius engineers have come up with solutions for exactly this kind of problem.

Let's try this for a Python application:

  1. We will be using Visual Studio Code, our favorite code editor, to show how to run a complete Python development environment inside a container. But first, we need to...