Working with Volume Mounting

Docker volumes help with the management of persistent data in docker containers. Persistent data is data where preservation is needed whenever a system restarts, the software is updated, or any other event that might lead to data loss. Some examples of persistent data are log files, databases, or settings. The persistent data is stored on a disk and isn’t like volatile memory, which is lost when the system is powered off.

Normally, when we run a container, file systems are created, and whenever the container is stopped or removed, the data within is lost. Docker volumes help by fixing that challenge by creating volumes that hold the data that’s all within the container. With Docker volumes, data can still be accessed even when the container is stopped or removed.

Docker volume mount

Docker volume mount can be described as attaching Docker volume to a container file system and making it accessible from inside the container. This allows for the exposure of a file on the host machine to the container, especially for mapping cases.