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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

Persistent and Ephemeral Volumes

There are two types of volumes: persistent and ephemeral ones. What we have seen so far is persistent volumes, which are between the host and the container. To share the volume between containers, we use the --volumes-from option. This volume exists only as long as it is being used by a container. When the last container using the volume exits, the volume disappears. This type of volume can be passed from one container to the next but is not saved. These volumes are called ephemeral volumes.

Volumes can be used to share log files between the host and the container or between containers. It is much easier to share them on a volume with the host so that even if the container was removed for an error, we can still track the error by checking the log file on the host after the container's removal.

Another common use of volumes in practical microservices applications is sharing the code on a volume. The advantage of this practice is that you...

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