Disable networking during bootstrapping
Disable networking during bootstrapping

There is no reason to have networking active while bootstrapping the
initial mysql folder structure. It is an additional attack vector that
serves no purpose.

Change-Id: Ia636ba9f563dbfb969dbfb613198c98748ee8a3c

stackforge/kolla,coolsvap/kolla,mrangana/kolla,mrangana/kolla,openstack/kolla,coolsvap/kolla,coolsvap/kolla,rahulunair/kolla,nihilifer/kolla,intel-onp/kolla,stackforge/kolla,rahulunair/kolla,intel-onp/kolla,nihilifer/kolla,GalenMa/kolla,stackforge/kolla,GalenMa/kolla,openstack/kolla