python3 create_website.py to generate website， ERROR 'Permission denied'

[lajiyuan]

Should we execute "chmod -R 777 results" after writing out the result folder every time, otherwise we will not have read permission and we cannot use create_website.py to generate a website？

[maumueller]

The idea is to to run create_website.py with sudo. The docker container writes the result files as root, and create_website.py will cache some computations and needs write access to these files. @erikbern Maybe we should run the docker images as the actual user.

[erikbern]

I think Docker generally likes to run as the superuser on a system, and I'm not sure if we have control over that, but I could be wrong?

My preference here would be to not mess around with permissions if possible. Maybe it's possible to write the website to a different directory or to mount a subdirectory of the results/ directory?

[maumueller]

I think it's pretty straight-forward to do, see e.g., https://github.com/lemire/docker_programming_station/blob/master/Dockerfile#L21-L27, from https://lemire.me/blog/2020/05/22/programming-inside-a-container/.

The problem is not with the website creation, but with the hdf5 files being owned by root, and the metrics scripts trying to cache metrics by writing them into the hdf5 file.

[erikbern]

If it can be fixed in the Dockerfile, let's definitely do that. I didn't realize it was possible.