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

Managed cloud services

In order to overcome the limitations of deploying applications on a single host, the easiest option to choose is to consider running your application using a managed cloud service that provides a container orchestration solution. Some of the most popular solutions include the following:

  • Google Kubernetes Engine (GKE)
  • Amazon Web Services Elastic Beanstalk (EB)
  • Amazon Web Services Elastic Container Service (ECS)
  • Amazon Web Services Elastic Kubernetes Service (EKS)
  • Microsoft Azure Kubernetes Service (AKS)
  • DigitalOcean Docker Swarm

Most of these services support running a set of Docker containers through Kubernetes (https://kubernetes.io/), a project initiated by Google. For many years, Google has run a container orchestration system called Borg (https://ai.google/research/pubs/pub43438), and Google used that as inspiration to create a container orchestration system suitable for external use, which got named Kubernetes.

Some...