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

Summary

In this chapter, we explored the topic of continuous deployment in AWS using the Spinnaker framework. We started by configuring Spinnaker to work with Jenkins, GitHub, AWS ECR, and Docker Hub. Then, we used it to deploy the ShipIt Clicker application to Kubernetes on EKS, securing both Spinnaker and the ShipIt Clicker application with SSL.

Following this, we learned about some advanced deployment strategies that Spinnaker offers, and what some of the trade-offs are that you would have to make when configuring your Kubernetes-driven Docker application to take advantage of them. We also learned how you can trigger the execution of tests (manual or automated) via Spinnaker. By using the lessons learned in this chapter in practice, you can construct continuous deployment systems that use a combination of simple Jenkins build jobs and Spinnaker pipelines to deploy Docker applications to Kubernetes. The skills you have acquired related to integrating Spinnaker with Kubernetes...