Scanning the list of OpenStack projects on github, here is my pick of projects in alphabetical order that don’t need to be there at present in their current location. This is not a reflection on their quality or utility. This list is purely based their relevance as the foundational building blocks for offering infrastructure services.

• Barbican
• Designate
• Kite
• Manila
• Sahara
• TriplO
• Trove
• Tuskar
• Zaqar

This leaves the following essentials

• Cinder
• Ceilometer
• Glance
• Heat
• Horizon
• Ironic
• Keystone
• Neutron
• Nova
• Swift

Relevance of projects like OpenStack has been, and shall always be based on their merit and depth, but not on the length of their portfolios. To give an analogy, Linux is relevant because of its strong core, and not because of KDE and OpenOffice.