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The Docker Workshop

You're reading from   The Docker Workshop Learn how to use Docker containers effectively to speed up the development process

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Product type Paperback
Published in Oct 2020
Publisher Packt
ISBN-13 9781838983444
Length 792 pages
Edition 1st Edition
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Concepts
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Authors (5):
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Engy Fouda Engy Fouda
Author Profile Icon Engy Fouda
Engy Fouda
Onur Yılmaz Onur Yılmaz
Author Profile Icon Onur Yılmaz
Onur Yılmaz
Sathsara Sarathchandra Sathsara Sarathchandra
Author Profile Icon Sathsara Sarathchandra
Sathsara Sarathchandra
Aric Renzo Aric Renzo
Author Profile Icon Aric Renzo
Aric Renzo
Vincent Sesto Vincent Sesto
Author Profile Icon Vincent Sesto
Vincent Sesto
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Toc

Table of Contents (17) Chapters Close

Preface
1. Running My First Docker Container 2. Getting Started with Dockerfiles FREE CHAPTER 3. Managing Your Docker Images 4. Multi-Stage Dockerfiles 5. Composing Environments with Docker Compose 6. Introduction to Docker Networking 7. Docker Storage 8. CI/CD Pipeline 9. Docker Swarm 10. Kubernetes 11. Docker Security 12. Best Practices 13. Monitoring Docker Metrics 14. Collecting Container Logs 15. Extending Docker with Plugins Appendix

How Docker Swarm Works?

The swarm manager nodes handle cluster management, and the main objective is to maintain a consistent state of both the swarm and the services running on it. This includes ensuring that the cluster is running at all times and that services are run and scheduled when needed.

As there are multiple managers running at the same time, this means there is fault tolerance, especially in a production environment. That is, if one manager is shut down, the cluster will still have another manager to coordinate services on the cluster. The sole purpose of worker nodes is to run Docker containers. They require at least one manager to function, but worker nodes can be promoted to being a manager, if needed.

Services permit you to deploy an application image to a Docker swarm. These are the containers to run and the commands to execute inside the running container. Service options are provided when you create a service, where you can specify the ports the application...

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