d5995da9df
To enable a common variable for overriding the OpenSUSE mirror, we use opensuse_mirror by default and provide a default value if it is not set. This ensures that a common variable can be used to set them all between lxc_hosts and openstack_hosts. Doing it this way also means that we do not need to add any 'glue' in the group_vars to keep them consistent. Change-Id: I22ac019d8783bc8e6c9d71c22c04314b77c55261