Heroku DockHero does not mount files, only empty folders

[vinhloc30796]

Problem: heroku dh:docker run --rm -v $(pwd):/config alpine ls -R /config will show only folders, not files.
Expected: mounting should also mount files

[vovayartsev]

Hi Loc!

The thing which confused you is that under the hood, the docker command is executed on a remote host, while $(pwd):/config is resolved on your local machine.

e.g. $(pwd):/config could be /home/loc/my-project/config, while on the remote host there's simply no such folder, and Docker daemon there creates an empty folder.

the usual practice here is:

• for any information from your computer which you want to take to the remote machine, make it a part of Docker Build.
• for any persistent file storage use docker volumes with local driver (default). Also, these volumes are backed up daily (backups are not available on Hobby plan)

[vovayartsev]

Closing it because that's not an issue