[nova] Offline Installation of Openstack

Hi Team, Requesting your help on below. We have a requirement to setup Openstack in an isolated infra. We will not be provided with Internet. How can we set it up? 1. Can we have a local repository (Rocky, Universal, etc)created? If so how do we manage it? 2. We have noticed lot of package dependencies while setting up Openstack Infra, so will creating a local repository help in an implementation when we do not have an internet. What is the success rate? Thanks Prem