March 2017
Intermediate to advanced
290 pages
5h 35m
English
Content preview from Troubleshooting DockerBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 9. Hooking Volume Baggage
This chapter introduces data volumes and storage driver concepts, which are widely used in Docker to manage persistent or shared data. We'll be also taking a deep dive into various storage drivers supported by Docker, and the basic commands associated with them for management. The three main use cases for Docker data volumes are as follows:
- To keep data persistent after a container is deleted
- To share data between the host and the Docker container
- To share data across Docker containers
In order to understand a Docker volume, we need to understand how the Docker filesystem works. Docker images are stored as a series of read-only layers. When the container is started, the read-only image adds a read-write layer on top. ...
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