How to Commit Data into a MySQL Container?

Issue: Committing Data into a MySQL Container

In an effort to create a new container image with pre-imported data, a user successfully created a MySQL container, imported a SQL dump into a newly created database, and committed the container as a new image. However, upon starting a container using the new image, the database did not contain the imported data.

Root Cause and Solution:

The issue stems from the nature of data storage in the official MySQL image. This image utilizes data volumes, ensuring data persistence beyond the container's lifespan. However, data volumes bypass the Union File System, preventing data from being committed to the image.

To rectify this, it is recommended to create a custom MySQL base image without volumes. This will enable the committal of both data and the image, but any data added post-commit will be lost when the container is terminated.

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