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

Considerations for monitoring system health

One of the things a system administrator learns early in his or her career is that it is better to find out about problems and fix them before the customer or the boss notices them. Log collection and performance graphs are essential when it comes to troubleshooting problems. Rarely, however, is someone watching every log message and every piece of performance data. There is just too much information and some administrators even have lives outside of the office. Fortunately, computers are very good at sifting through lots of data and rarely ask for time off.

Most of the tools that have been used for years to monitor server and service health still apply. However, a fully orchestrated environment offers some unique challenges when compared to the old standalone server model. For example, a service does not live on a single host. It could run anywhere in the cluster. In addition, the ability to quickly add or remove capacity to the Docker cluster...