do not use compressed qcow2
do not use compressed qcow2

jmcabandara/imagefactory,LalatenduMohanty/imagefactory,henrysher/imagefactory,henrysher/imagefactory,redhat-imaging/imagefactory,redhat-imaging/imagefactory,jmcabandara/imagefactory,LalatenduMohanty/imagefactory