Overcloud creation fails with error "Quota exceeded for cores,ram: Requested 56, but already used 0 of 20 cores (HTTP 403)"

Solution Unverified - Updated -

Issue

Getting following error in heat resource-list

overcloud | CREATE_FAILED | Resource CREATE failed: Forbidden: resources.Ceph-Storage.resources[1].resources.CephStorage: Quota exceeded for cores,ram: Requested 56, but already used 0 of 20 cores (HTTP 403) (Request-ID: req-45518069-6295-43e0-91de-ae3de1e670a7)

Environment

Red Hat Enterprise Linux Openstack Platform 7

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