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

Spinnaker – when and why you might need more sophisticated deployments

In order to reliably deploy your application, you could write many scripts by hand and use a continuous integration system. However, many people have thought about the problems inherent in deploying applications in Kubernetes. Kubernetes does have significant deployment capabilities, especially when you use the deployment controller. But this approach does not meet everyone's needs. Some people have developed specialized systems that reduce the complexity of handling these tasks. Systems such as Jenkins-X, Weaveworks, CodeFresh, and Spinnaker fit this niche. We are going to examine Spinnaker, a continuous deployment toolset, in more detail (https://www.spinnaker.io/).

We will begin by walking through Spinnaker's core concepts and highlighting where it shares terminology with other platforms, such as Kubernetes, including where the meanings are different.

Introduction to Spinnaker

Spinnaker...