Gabriel N. Schenker - Learn Docker - Fundamentals of Docker 19.x, 2nd Edition

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First published: April 2018
Second edition: March 2020

Production reference: 1130320

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ISBN 978-1-83882-747-2

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Gabriel N. Schenker has more than 25 years of experience as an independent consultant, architect, leader, trainer, mentor, and developer. Currently, Gabriel works as Lead Solution Architect at Techgroup Switzerland. Prior to that, Gabriel worked as Lead Curriculum Developer at Docker and at Confluent. Gabriel has a Ph.D. in Physics, and he is a Docker Captain, a Certified Docker Associate, a Certified Kafka Developer and Operator, and an ASP Insider. When not working, Gabriel enjoys time with his wonderful wife Veronicah and his children.

Francisco Javier Ramrez Urea is a technology enthusiast and professional, Docker Captain, casual developer, open source advocate, a certified trainer and solutions architect at HoplaSoftware, and a technical book writer and reviewer.

He is also a Kubernetes Certified Administrator, a Docker Certified Associate, a Docker Certified Instructor, and a Docker MTA program Consultant, as well as a Docker/Kubernetes and NGINX expert and a DevOps/CI-CD solutions integrator.

He currently works as a solutions architect focused on containers and microservices technologies. He is passionate to teach his students everything he know. Continuous learning is the main motivation of his career.

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Developers are faced with ever-increasing pressure to build, modify, test, and deploy highly distributed applications in a high cadence. Operations engineers are looking for a uniform deployment strategy that encompasses most or all of their ever-growing portfolio of applications, and stakeholders want to keep their total cost of ownership low. Docker containers combined with a container orchestrator such as Kubernetes help them all to achieve these goals.

Docker containers accelerate and simplify the building, shipping, and running of highly distributed applications. Containers turbo-charge CI/CD pipelines, and containerized applications allow a company to standardize on one common deployment platform, such as Kubernetes. Containerized applications are more secure and can be run on any platform that's able to run containers, on premises or in the cloud.

This book is targeted at system administrators, operations engineers, DevOps engineers, and developers or stakeholders who are interested in getting started with Docker from scratch.

, What Are Containers and Why Should I Use Them? , introduces the concept of containers and why they are so extremely useful in the software industry.

, Setting Up a Working Environment , discusses in detail how to set up an ideal environment for developers, DevOps, and operators that can be used when working with Docker containers.

, Mastering Containers , explains how to start, stop, and remove containers. We will also see how to inspect containers to retrieve additional metadata from them. Furthermore, we'll see how to run additional processes, how to attach to the main process in an already running container, and how to retrieve logging information from a container that is produced by the processes running inside it. Finally, the chapter introduces the inner workings of a container, including such things as Linux namespaces and groups.

, Creating and Managing Container Images