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

Preface

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.