Book Image

Mastering Docker - Third Edition

By : Russ McKendrick, Scott Gallagher
Book Image

Mastering Docker - Third Edition

By: Russ McKendrick, Scott Gallagher

Overview of this book

Docker has been a game-changer when it comes to how modern applications are deployed and created. It has now grown into a key driver of innovation beyond system administration, with an impact on the world of web development. But how can you make sure you're keeping up with the innovations it's driving, or be sure you're using it to its full potential? Mastering Docker shows you how; this book not only demonstrates how to use Docker more effectively, but also helps you rethink and reimagine what's possible with it. You will cover concepts such as building, managing, and storing images, along with best practices to make you confident, before delving more into Docker security. You'll find everything related to extending and integrating Docker in new and innovative ways. Docker Compose, Docker Swarm, and Kubernetes will help you take control of your containers in an efficient manner. By the end of the book, you will have a broad, yet detailed, sense of what's possible with Docker, and how seamlessly it fits in with a range of other platforms and tools.
Table of Contents (17 chapters)

Extending to external platforms

We have already looked at how we can extend to some other external platforms using tools such as Docker Machine, Docker Swarm, Docker for Amazon Web Services, and Rancher to launch clusters and also clusters and container services from public cloud services, such as Amazon Web Services, Microsoft Azure, and DigitalOcean.

Heroku

Heroku is a little different than the other cloud services, as it is a considered a Platform as a service (PaaS). Instead of deploying containers on it, you link your containers to that Heroku platform, from which it will be running a service, such as PHP, Java, Node.js, or Python. So, you can run your Rails application on Heroku and then attach your Docker container...