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

You will need to have a working Kubernetes cluster in the cloud, as set up in the previous chapter. You could reuse that cluster or set up a new one for this chapter using the same method or by using eksctl. Please note that the Spinnaker version described in this chapter is not compatible with Kubernetes 1.16 and later; be sure to install this on a Kubernetes 1.15 cluster. You will also need to have a current version of the AWS Command-Line Interface (CLI), kubectl, and helm 3.x installed on your local workstation, as described in the previous chapter. The Helm commands in this chapter use the helm 3.x syntax. The AWS Elastic Kubernetes Service (EKS) cluster must have a working Application Load Balancer (ALB) Ingress Controller setup. We will also use the AWS ECR Docker repository set up in the previous chapter. You will also need to have the Jenkins server that was set up in Chapter 7, Continuous Deployment with Jenkins, available as Spinnaker relies on Jenkins...