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)

Chapter 5, Docker Compose

  1. YAML, or YAML Ain't Markup Language
  2. The restart flag is the same as the --restart flag
  3. False; you can use Docker Compose to build images at runtime
  4. By default, Docker Compose uses the name of the folder that the Docker Compose file is stored in
  5. You use the -d flag to start the container's detached mode
  6. Using the docker-compose config command will expose any syntax errors within your Docker Compose file
  7. The Docker App bundles your Docker Compose file into a small Docker image, which can be shared via the Docker Hub or other registries, the Docker App command-line tool when can render working Docker Compose files from the data contained within the image