volume permissions issues

[jeremydouglass]

Jupyter runs as jovyan:users (1000:100) -- however many containers run as root (1:1) and this causes problems for file permissions on shared volumes. docker cp has poor support for this, so a host system level chown may be required.

One interesting model is how Jupyter addresses this in the base notebook.

• https://github.com/jupyter/docker-stacks/blob/master/base-notebook/fix-permissions
• https://github.com/jupyter/docker-stacks/blob/master/base-notebook/Dockerfile

A related approach was taken in we1s-collector:

• whatevery1says/we1s-collector@2bb235f