Adding call to setup.py --buildroot.  Creates controlled files:

/buildroot/etc/waagent.conf
/buildroot/etc/init.d/waagent
/buildroot/etc/logrotate.d/waagent
setup.py is invoked by rpmbuild with --buildroot <path>
creates files:
/buildroot/etc/waagent.conf
/buildroot/etc/logrotate.d/waagent
/buildroot/etc/init.d/waagent