/etc/init/powernap.conf is in powernap 2.21-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | # powernap
description "PowerNap"
author "Dustin Kirkland <kirkland@canonical.com>"
start on runlevel [2345]
expect daemon
pre-start exec /usr/share/powernap/powernap-ethtool
pre-stop script
powerwake-now || true
end script
exec /usr/sbin/powernapd
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