/lib/systemd/system/xe-daemon.service.d/nova-agent.conf is in rax-nova-agent 2.1.13-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [Unit]
# This is required to avoid dependency loops with cloud-init.
DefaultDependencies=no
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