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

Chapter 8. Monitoring Your Cluster

Setting up orchestration for a Docker cluster is only half the battle. One also needs visibility into the cluster. Why is data retrieval slow? Is it disk or network? What is being logged by the web server for an application? How much memory is being used by an application? At some point, these or similar questions will come up and it will be up to you, as the administrator, to have the answers for these.

This chapter will look at different tools that can be deployed to assist in monitoring and troubleshooting. Some, such as Kibana, can provide a summary of the cluster health while others, such as Sysdig, can provide deep dive information on applications or individual containers.

This chapter will cover the following topics:

  • Docker logging drivers

  • Logging for containers that do not send logs to standard out or standard error

  • Logging and viewing logs with the ELK stack

  • Using remote logging with Kubernetes, Mesosphere, and Docker Datacenter

  • Collecting performance...