Comment 5 for bug 1484788

This file is used to by contrail-status to display the packages and its
version. This file is brought in by contrail-setup package.

We allow two mode of contrail uninstall as follows in fab,

1. Full - removes all contrail packages(users use this to install
different version of contrail)
2. Partial - Removes all except contrail-install-packages, contrail-setup,
contrail-fabric-utils (Users use this to reinstall same version of
contrail)

During partial uninstall this file is removed, then during reinstall of
the contrail, contrail-setup will not be installed as it is already
present,
So this file will not be created again.

I am fixing the fab uninstall_contrail task, so that it won¹t remove this
file from /etc/contrail in case of partial uninstall.