i2 Private Cloud
This is the Private Cloud based on OpenStack that was built in PPB starting with 2016 and for which I was leading the security effort. It started in 2016 and suffered many improvements over time and the intial automation used as a bse for the Public Cloud as well (AWS).
Please have a look at the whitepaper that was open-sourced in 2016: i2 Whitepaper - OpenStack Reference Architecture