DISCOVERY SERVICE: Permission denied: '/edx/var/discovery/media'

[Xperez (Xabier Pérez Fernández)]

The solution is create media folder and to give permissions like this:

mkdir /edx/var/discovery/media
chown -R discovery:www-data /edx/var/discovery/media
chmod -R 775 /edx/var/discovery/media

Related: Discovery Service: Cant Log in.