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Issue description

The naming convention we use for resources should better match their purpose/usage.  For instance, the OpenStack node set is named openstack-data-plane, but the OpenStack deployment is also named openstack-data-plane.  This leads to confusion in many places, including the Ansible EE names.  Ansible EE names use a convention of <service><deployment><node set>, and because the deployment name and node set name are the same, it looks like a repeating pattern (`bootstrap-openstack-data-plane-openstack-data-plane`).  Ideally, we could use a name that is more indicative of the usage, e.g., `openstack-node-set` for the node set name and `openstack-deployment` or `openstack-initial-deployment` for the deployment name.  This helps students to see the pattern more easily than if we use the same name for two different things.