Troubleshooting common problems

Solving problems hangs, on OS X with docker-machine or VirtualBox to run Docker

There is a known problem with VirtualBox shared folders: it is impossible for the VM to create a unix socket inside (for strange reasons). To solve this, you can mount instead your /Users directory using docker-machine-nfs:

brew install docker-machine-nfs
docker-machine-nfs default -f --nfs-config="-maproot=0"

It is impossible to modify the course.yaml from the webdav interface

Some editors/webdav clients attempt to first move/delete a file before modifying it. It is forbidden to remove or rename the course.yaml, so the modification will fail.

Use simpler editors (such as nano/vim) that directly edit the file rather than doing strange things.