list of flavors can be obtained from cloudmesh_flavor.yaml if it is defined. For example, flavors of alamo_openstack_folsom are defined in the yaml, refreshing flavors will show the contents of the yaml instead of retrieving the flavors from IaaS platforms. This is because of that the ec2 of libcloud does provide default flavors, not real flavors from IaaS platforms. OpenStack on Alamo and OpenStack Hotel have this issue since they are supported by ec2tools api