
At the moment we do generate SSH keypairs for octavia with pre-defined options for backwards compatability. In the meanwhile it might not make much sense for new deployments, though there's no clear way to overrride these options.] With that we implement a bunch of new variables that allows to tune properties for the SSH key to be used. Change-Id: I5c4c20e7375b2471cc47ac628e007d6297bdeb7e