why doesn't chown work in Dockerfile?

Question

My Dockerfile creates a directory, chown\'s it, and then lists the directory afterwards. The directory is still owned by root. Why is that?

Here is the Dockerfile:

Answer 1

For Alpine Linux users, I had to do chown -R root . in the workspace I was trying to own. This had to be done in the CMD of the dockerfile, as I believe the volume mounts may overwrite files when mounting