Run e2e tests with "custom" distro
Run e2e tests with "custom" distro

When undefined, distro is set to "debian" and that disables GlusterFS
tests.

jsafrane/origin,Miciah/origin,pecameron/origin,spadgett/origin,ironcladlou/origin,JacobTanenbaum/origin,ingvagabund/origin,sdminonne/origin,csrwng/origin,jsafrane/origin,bparees/origin,bparees/origin,enj/origin,xiuwang/origin,xiuwang/origin,akram/origin,jim-minter/origin,spadgett/origin,tnozicka/origin,nak3/origin,mkumatag/origin,mfojtik/origin,bparees/origin,mahak/origin,jsafrane/origin,anpingli/origin,jeremyeder/origin,sjug/origin,akram/origin,ingvagabund/origin,dinhxuanvu/origin,coreydaley/origin,enj/origin,deads2k/origin,csrwng/origin,openshift/origin,ironcladlou/origin,akram/origin,tnozicka/origin,pweil-/origin,deads2k/origin,sallyom/origin,dinhxuanvu/origin,ingvagabund/origin,tnozicka/origin,sdminonne/origin,JacobTanenbaum/origin,jeremyeder/origin,anpingli/origin,gabemontero/origin,sferich888/origin,soltysh/origin,dinhxuanvu/origin,sjug/origin,hroyrh/origin,pweil-/origin,hroyrh/origin,jeremyeder/origin,sferich888/origin,nak3/origin,csrwng/origin,hroyrh/origin,tnozicka/origin,soltysh/origin,sdminonne/origin,sallyom/origin,tnozicka/origin,jeremyeder/origin,coreydaley/origin,spadgett/origin,sjug/origin,openshift/origin,mahak/origin,jim-minter/origin,mkumatag/origin,Miciah/origin,mfojtik/origin,mahak/origin,Miciah/origin,gabemontero/origin,openshift/origin,soltysh/origin,mfojtik/origin,pecameron/origin,jeremyeder/origin,spadgett/origin,coreydaley/origin,jim-minter/origin,pweil-/origin,enj/origin,dinhxuanvu/origin,xiuwang/origin,sallyom/origin,tnozicka/origin,mkumatag/origin,ironcladlou/origin,pecameron/origin,spadgett/origin,nak3/origin,JacobTanenbaum/origin,anpingli/origin,dinhxuanvu/origin,sferich888/origin,deads2k/origin,gabemontero/origin