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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