* Fedora CoreOS need the key to be passed as
a string.
* We can adopt in all drivers so that users in
the same project can do cluster resize.
story: 2005201
task: 36934
Change-Id: I9a18ce4dcbd74f0dcd23274baed7c8c3d2029d50
Signed-off-by: Spyros Trigazis <spyridon.trigazis@cern.ch>