user_domain_id = os.environ.get('OS_USER_DOMAIN_ID') or 'default'
project_name = project or os.environ.get('OS_PROJECT_NAME') \
or os.environ.get('OS_TENANT_NAME')
user_domain_id = os.environ.get('OS_USER_DOMAIN_ID') or 'default'
project_name = project or os.environ.get('OS_PROJECT_NAME') \
or os.environ.get('OS_TENANT_NAME')