In most cases, log messages are written to files. That is not to say that files are the only, nor the most efficient way of storing logs. However, since most teams are using file-based logs in one form or another, for the time being, I'll assume that is your case as well. If it is, we identified the first thing we should fix. Containers expect us to send logs to stdout and stderr. Only log entries forwarded to the standard output are retrievable with docker logs command. Moreover, tools designed to work with container logs will expect just that. They'll assume that entries are not written to a file but sent to the output. Even without containers, I believe that stdout and stderr are where our services should log things. However, that's a story for some other time. For now, we'll concentrate on containers and assume that you are outputting your logs to stdout and stderr. If you're not, most logging libraries will allow you to change your logging destination...
The DevOps 2.1 Toolkit: Docker Swarm
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The DevOps 2.1 Toolkit: Docker Swarm
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Overview of this book
Viktor Farcic's latest book, The DevOps 2.1 Toolkit: Docker Swarm, takes you deeper into one of the major subjects of his international best seller, The DevOps 2.0 Toolkit, and shows you how to successfully integrate Docker Swarm into your DevOps toolset.
Viktor shares with you his expert knowledge in all aspects of building, testing, deploying, and monitoring services inside Docker Swarm clusters. You'll go through all the tools required for running a cluster. You'll travel through the whole process with clusters running locally on a laptop. Once you're confident with that outcome, Viktor shows you how to translate your experience to different hosting providers like AWS, Azure, and DigitalOcean.
Viktor has updated his DevOps 2.0 framework in this book to use the latest and greatest features and techniques introduced in Docker. We'll go through many practices and even more tools. While there will be a lot of theory, this is a hands-on book. You won't be able to complete it by reading it on the metro on your way to work. You'll have to read this book while in front of the computer and get your hands dirty.
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Current Title:
The DevOps 2.1 Toolkit: Docker Swarm
Table of Contents (22 chapters)
Title Page
Credits
About the Author
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Preface
Free Chapter
Continuous Integration with Docker Containers
Setting Up and Operating a Swarm Cluster
Docker Swarm Networking and Reverse Proxy
Service Discovery inside a Swarm Cluster
Continuous Delivery and Deployment with Docker Containers
Automating Continuous Deployment Flow with Jenkins
Exploring Docker Remote API
Using Docker Stack and Compose YAML Files to Deploy Swarm Services
Defining Logging Strategy
Collecting Metrics and Monitoring the Cluster
Embracing Destruction: Pets versus Cattle
Creating and Managing a Docker Swarm Cluster in Amazon Web Services
Creating and Managing a Docker Swarm Cluster in DigitalOcean
Creating and Managing Stateful Services in a Swarm Cluster
Managing Secrets in Docker Swarm Clusters
Monitor Your GitHub Repos with Docker and Prometheus
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