Learn Docker – Fundamentals of Docker 19.x by Gabriel N. Schenker

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.

What you will learn
Containerize your traditional or microservice-based applications
Develop, modify, debug, and test an application running inside a container
Share or ship your application as an immutable container image
Build a Docker Swarm and a Kubernetes cluster in the cloud
Run a highly distributed application using Docker Swarm or Kubernetes
Update or rollback a distributed application with zero downtime
Secure your applications with encapsulation, networks, and secrets
Troubleshoot a containerized, highly distributed application in the cloud
Who this book is for
This book is for system administrators, operations engineers, DevOps engineers, and developers or stakeholders who are interested in getting started with Docker from scratch. No prior experience with Docker containers is required.

Table of Contents
What Are Containers and Why Should I Use Them?
Setting Up a Working Environment
Mastering Containers
Creating and Managing Container Images
Data Volumes and Configuration
Debugging Code Running in Containers
Using Docker to Supercharge Automation
Advanced Docker Usage Scenarios
Distributed Application Architecture
Single-Host Networking
Docker Compose
Orchestrators
Introduction to Docker Swarm
Zero-Downtime Deployments and Secrets
Introduction to Kubernetes
Deploying, Updating, and Securing an Application with Kubernetes
Monitoring and Troubleshooting an App Running in Production
Running a Containerized App in the Cloud