Explore the core functionality of containerizing your applications and making them production-ready

Key Features

• Grasp basic to advanced Docker concepts with this comprehensive guide
• Get acquainted with Docker containers, Docker images, orchestrators, cloud integration, and networking
• Learn to simplify dependencies and deploy and test containers in production

Book Description

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 Linux professionals, 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. Users with a Linux system would be able to take full advantage of this book.

Table of Contents

1. What Are Containers and Why Should I Use Them?
2. Setting Up a Working Environment
3. Mastering Containers
4. Creating and Managing Container Images
5. Data Volumes and Configuration
6. Debugging Code Running in Containers
7. Using Docker to Supercharge Automation
8. Advanced Docker Usage Scenarios
9. Distributed Application Architecture
10. Single-Host Networking
11. Docker Compose
12. Orchestrators
13. Introduction to Docker Swarm
14. Zero-Downtime Deployments and Secrets
15. Introduction to Kubernetes
16. Deploying, Updating, and Securing an Application with Kubernetes
17. Monitoring and Troubleshooting an App Running in Production
18. Running a Containerized App in the Cloud

About the Author

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.