Book Image

Monitoring Docker

By : Russ McKendrick
Book Image

Monitoring Docker

By: Russ McKendrick

Overview of this book

This book will show you how monitoring containers and keeping a keen eye on the working of applications helps improve the overall performance of the applications that run on Docker. With the increased adoption of Docker containers, the need to monitor which containers are running, what resources they are consuming, and how these factors affect the overall performance of the system has become the need of the moment. This book covers monitoring containers using Docker's native monitoring functions, various plugins, as well as third-party tools that help in monitoring. Well start with how to obtain detailed stats for active containers, resources consumed, and container behavior. We also show you how to use these stats to improve the overall performance of the system. Next, you will learn how to use SysDig to both view your containers performance metrics in real time and record sessions to query later. By the end of this book, you will have a complete knowledge of how to implement monitoring for your containerized applications and make the most of the metrics you are collecting

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Monitoring Docker
Russ McKendrick
Dec, 2015 | 148 pages
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Table of Contents (15 chapters)
Monitoring Docker
Monitoring Docker
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Introduction to Docker Monitoring
Introduction to Docker Monitoring
Pets, Cattle, Chickens, and Snowflakes
Docker
Launching a local environment
Cloning the environment
Running a virtual server
Halting the virtual server
Summary
2
Using the Built-in Tools
Using the Built-in Tools
Docker stats
What just happened?
What about processes?
Summary
3
Advanced Container Resource Analysis
Advanced Container Resource Analysis
What is cAdvisor?
Running cAdvisor using a container
Compiling cAdvisor from source
Collecting metrics
The Web interface
Viewing container stats
This is all great, what's the catch?
Prometheus
Alternatives?
Summary
4
A Traditional Approach to Monitoring Containers
A Traditional Approach to Monitoring Containers
Zabbix
Installing Zabbix
Docker metrics
Summary
5
Querying with Sysdig
Querying with Sysdig
What is Sysdig?
Installing Sysdig
Using Sysdig
Using Csysdig
Summary
6
Exploring Third Party Options
Exploring Third Party Options
A word about externally hosted services
Why use a SaaS service?
Sysdig Cloud
Datadog
New Relic
Summary
7
Collecting Application Logs from within the Container
Collecting Application Logs from within the Container
Viewing container logs
ELK Stack
Looking at third party options
Summary
8
What Are the Next Steps?
What Are the Next Steps?
Some scenarios
A little more about alerting
Keeping up
Summary
Index
Index

About the Reviewer

Marcelo Correia Pinheiro is a Brazilian software engineer from Porto Alegre. He started to work as a web designer and programmer in 2000 with ASP and PHP, naturally getting in touch with the Microsoft .NET framework and Java running respective databases of choice for web applications. Since 2003, he has used Linux and UNIX-related operational systems, from Slackware to Gobo Linux, Archlinux, CentOS, Debian, and today OSX, having some contact with BSD distributions too. He has lost some nights compiling and applying patches to the Linux kernel to make its desktop work. Since the beginning, he has been acting as a problem solver, no matter what the programming language, database, or platform is—open source enthusiast.

After a few years, he decided to live in São Paulo to work with newer technologies such as NoSQL, cloud computing, and Ruby, where he started to conduct tech talks with this language in Locaweb. He created some tools to standardize development using tools such as vagrant and Ruby gems—some of these in their GitHub—in Locaweb to ensure fast application packaging and reduced deployment rollbacks. In 2013, he changed his career to be a full-stack developer following the DevOps movement. Since 2012, he has attended, as a speaker, some of the biggest software conferences in Brazil—RS on Rails, QConSP, The Developer's Conference, and RubyConf Brazil—talking not only about Ruby, but also about some of the well-known DevOps tools such as Terraform, Packer, Ansible, and Docker. Today, he works as a DevOps consultant in their company.

In his free time, he loves playing the guitar, having some fun with cats, traveling, and drinking beer. He can be found on his blog (http://salizzar.net), Twitter (https://twitter.com/salizzar), GitHub (https://github.com/salizzar) and Linkedin (https://www.linkedin.com/in/salizzar).

He has worked as a reviewer for Vagrant Virtual Development Environment Cookbook, a Packt Publishing book with useful recipes using vagrant with configuration management tools such as Puppet, Chef, Ansible, and SaltStack.

I want to thank all my friends, who believed in my potential since the beginning and who still follow me despite the distance. I would also like to thank my mentors, Gleicon Moraes, Roberto Gaiser, and Rodrigo Campos, who gave me the incentive and tips to be a better software engineer and person.

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