The cloud operating system security high-performance authentication component can be implemented as a high-performance replacement for OpenStack Keystone.
The Kolla-Ansible is a deliverable project separated from Kolla project. Kolla-Ansible deploys OpenStack services and infrastructure components in Docker containers.
Neutron is an OpenStack project to provide "network connectivity as a service" between interface devices (e.g., vNICs) managed by other OpenStack services