**OPENSTACK**\\
[[https://en.wikipedia.org/wiki/OpenStack#Compute_(Nova)]]
\\
Is based in leaf and spine topology. Components:
  * Neutron - network : 'Nuage VSP' an evolved version of it. Basically NSG == microsegmentation ~= neutron
  * Nova : compute
  * Glance : images
  * Swift : storage
    * Ceph : distributed storage  
    * Cinder : block storage
  * Keystone : identity
\\
Well known, working, distributions:
  * Red Hat OpenStack 

Interesting:
  * Organization that built openstack private cloud and documented it [[https://betsandbits.files.wordpress.com/2016/10/openstackreferencearchitecturewhitepaper.pdf|white_paper]]





----
References:
  * [[https://dzone.com/articles/openstack-core-components]]
  * [[https://blog.ipspace.net/2017/03/worth-reading-building-openstack.html]]


----
Microsegmentation (as per 2021) is just packet filters pushed with dot1x. Access groups.