Bugfix: mounting user bash configs caused read-only mount

[lkoelman]

When running isaac-ros activate I got the following errors in docker/scripts/workspace-entrypoint.sh:

Creating non-root container 'admin' for host user uid=1000:gid=1000
cp: cannot create regular file '/home/admin/.bashrc': Read-only file system
cp: cannot create regular file '/home/admin/.profile': Read-only file system
chown: changing ownership of '/home/admin/.bashrc': Read-only file system
chown: changing ownership of '/home/admin/.profile': Read-only file system

This error arises because docker run -v ~/.bashrc:/home/admin/.bashrc cause the /home/admin folder to be mounted in read-only mode.

Moreover, mounting the bash configs inside the container could have all kinds of unwanted side effects, as the setup inside the container might be very different from that within the host system.