In the installation guide we configure the ec2authtoken (http://docs.openstack.org/draft/install-guide/install/yum/content/heat-install-controller-node.html). Is this necessary? We do not set up the EC2 API on the Nova controller node and at the moment I do not understand why we configure the EC2 token and think that it can be removed. [ec2authtoken] ... auth_uri = http://controller:5000/v2.0 Christian. -- Christian Berendt Cloud Solution Architect Mail: berendt at b1-systems.de B1 Systems GmbH Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537