d744598179
This patch adds a scenario test instances with cinder volumes launches on all available compute nodes, up to CONF.compute.min_compute_nodes. Also 1 additional configuration is added: volume_types_for_data_volume. Also function for create and add security group to server is moved to tempest/scenario/manager.py to avoid code duplication. Change-Id: I346a9505bc942e66aedad2029215617d0918a885