Book Image

The Docker Workshop

By : Vincent Sesto, Onur Yılmaz, Sathsara Sarathchandra, Aric Renzo, Engy Fouda
5 (3)
Book Image

The Docker Workshop

5 (3)
By: Vincent Sesto, Onur Yılmaz, Sathsara Sarathchandra, Aric Renzo, Engy Fouda

Overview of this book

No doubt Docker Containers are the future of highly-scalable software systems and have cost and runtime efficient supporting infrastructure. But learning it might look complex as it comes with many technicalities. This is where The Docker Workshop will help you. Through this workshop, you’ll quickly learn how to work with containers and Docker with the help of practical activities.? The workshop starts with Docker containers, enabling you to understand how it works. You’ll run third party Docker images and also create your own images using Dockerfiles and multi-stage Dockerfiles. Next, you’ll create environments for Docker images, and expedite your deployment and testing process with Continuous Integration. Moving ahead, you’ll tap into interesting topics and learn how to implement production-ready environments using Docker Swarm. You’ll also apply best practices to secure Docker images and to ensure that production environments are running at maximum capacity. Towards the end, you’ll gather skills to successfully move Docker from development to testing, and then into production. While doing so, you’ll learn how to troubleshoot issues, clear up resource bottlenecks and optimize the performance of services. By the end of this workshop, you’ll be able to utilize Docker containers in real-world use cases.
Table of Contents (17 chapters)
Preface

Advantages of Using Docker

In a traditional VM approach, code changes would require operations folk or a configuration management tool to access that machine and install a new version of the software. The principle of immutable containers means that when a code change occurs, a new version of that container image will be built and created as a new artifact. If this change needed to be rolled back, it would be as easy as downloading and restarting the older version of the container image.

Leveraging a containerized approach also enables software development teams to predictably and reliably test applications in various scenarios and multiple environments locally. Since the Docker runtime environment provides a standard execution environment, software developers can quickly recreate issues and debug problems easily. Because of container immutability, developers can be assured that the same code is running across all environments because the same Docker images can be deployed in any...