/usr/share/tripleo-image-elements/openstack-db/source-repository-openstack is in python-tripleo-image-elements 0.7.1-1.
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1 2 3 4 5 | keystone git /opt/stack/keystone https://git.openstack.org/openstack/keystone.git
cinder git /opt/stack/cinder https://git.openstack.org/openstack/cinder.git
nova git /opt/stack/nova https://git.openstack.org/openstack/nova.git
glance git /opt/stack/glance https://git.openstack.org/openstack/glance.git
neutron git /opt/stack/neutron https://git.openstack.org/openstack/neutron.git
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