Book Image

Docker for Developers

By : Richard Bullington-McGuire, Andrew K. Dennis, Michael Schwartz
2 (1)
Book Image

Docker for Developers

2 (1)
By: Richard Bullington-McGuire, Andrew K. Dennis, Michael Schwartz

Overview of this book

Docker is the de facto standard for containerizing apps, and with an increasing number of software projects migrating to containers, it is crucial for engineers and DevOps teams to understand how to build, deploy, and secure Docker environments effectively. Docker for Developers will help you understand Docker containers from scratch while taking you through best practices and showing you how to address security concerns. Starting with an introduction to Docker, you’ll learn how to use containers and VirtualBox for development. You’ll explore how containers work and develop projects within them after you’ve explored different ways to deploy and run containers. The book will also show you how to use Docker containers in production in both single-host set-ups and in clusters and deploy them using Jenkins, Kubernetes, and Spinnaker. As you advance, you’ll get to grips with monitoring, securing, and scaling Docker using tools such as Prometheus and Grafana. Later, you’ll be able to deploy Docker containers to a variety of environments, including the cloud-native Amazon Elastic Kubernetes Service (Amazon EKS), before finally delving into Docker security concepts and best practices. By the end of the Docker book, you’ll be able to not only work in a container-driven environment confidently but also use Docker for both new and existing projects.
Table of Contents (21 chapters)
1
Section 1: An Introduction to Docker – Containers and Local Development
6
Section 2: Running Docker in Production
14
Section 3: Docker Security – Securing Your Containers

Technical requirements

To complete the exercises in this chapter, you'll need Git and Docker on your local workstation, and you will need a single host capable of running Linux and Docker for your production server, connected to a network that you can SSH into and that your users can reach.

The GitHub repository for this chapter can be found at https://github.com/PacktPublishing/Docker-for-Developers—please refer to the chapter6 folder.

Check out the following video to see the Code in Action:

https://bit.ly/31OSi1H

Example application – ShipIt Clicker v2

The version of ShipIt Clicker in this chapter is more polished than the one we used in Chapter 5, Alternatives for Deploying and Running Containers in Production. It has the following features:

  • An improved Dockerfile and docker-compose.yml file suitable for basic production use
  • Storage of game state in Redis tied to a server session, leading to distinct game states for different client...