tempest: allow usage of scenario-img for autoscaling

When tempest is not run by devstack the image name for scenario is different.

This change allows to use it.

Change-Id: I4493e61df8723d510766a79295a4d477c793ef24
1 file changed
tree: ec87366ae4e7eaa6ed19af2bd2c4a720008e1abe
  1. ceilometer/