/usr/share/tripleo-image-elements/tuskar/source-repository-tuskar is in python-tripleo-image-elements 0.7.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | tuskar git /opt/stack/tuskar https://git.openstack.org/openstack/tuskar
tuskar-templates git /opt/stack/tuskar/etc/tuskar/tripleo-heat-templates https://git.openstack.org/openstack/tripleo-heat-templates
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