Book Image

Docker Orchestration

By : Randall Smith
Book Image

Docker Orchestration

By: Randall Smith

Overview of this book

Docker orchestration is what you need when transitioning from deploying containers individually on a single host to deploying complex multi-container apps on many machines. This book covers the new orchestration features of Docker 1.12 and helps you efficiently build, test, and deploy your application using Docker. You will be shown how to build multi-container applications using Docker Compose. You will also be introduced to the building blocks for multi-host Docker clusters such as registry, overlay networks, and shared storage using practical examples. This book gives an overview of core tools such as Docker Machine, Swarm, and Compose which will enhance your orchestration skills. You’ll learn how to set up a swarm using the decentralized building block. Next, you’ll be shown how to make the most out of the in-built orchestration feature of Docker engine and you’ll use third-party tools such as Kubernetes, Mesosphere, and CoreOS to orchestrate your existing process. Finally, you will learn to deploy cluster hosts on cloud services and automate your infrastructure.
Table of Contents (17 chapters)
Docker Orchestration
About the Author
About the Reviewer
Customer Feedback

Using Docker Cloud for CI

Docker Hub and Docker Cloud can automatically update images when a linked Git repository is updated. This can be used for lightweight CI, if GitLab is too involved a tool for the job. In either case, custom tools could be written to run the newly generated images against a test suite or they could be run and tested by hand.

Docker Cloud, in particular, can be useful for testing images. It can auto build an image every time the project is updated in GitHub or Bitbucket. Once the image is built, it can be started as a service in a test cluster from the web interface.

To start, click on the Repositories link and click on Create to create a new repository. Link the new repository to GitLab or Bitbucket by clicking on the appropriate icon at the bottom of the creation page. When everything is ready, click on Create:

Enabling autobuilds

Autobuilds can be created any time after a repository is created by selecting the repository from the Repositories page and clicking on...