/lib/init/apparmor-profile-load is in upstart 1.12.1-0ubuntu4.
This file is owned by root:root, with mode 0o755.
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 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | #!/bin/sh
# apparmor-profile-load
#
# Helper for loading an AppArmor profile in pre-start scripts.
[ -z "$1" ] && exit 1 # require a profile name
# do not load in a container
[ -x /bin/running-in-container ] && /bin/running-in-container >/dev/null 2>&1 && exit 0
[ -d /rofs/etc/apparmor.d ] && exit 0 # do not load if running liveCD
profile=/etc/apparmor.d/"$1"
[ -e "$profile" ] || exit 0 # skip when missing profile
module=/sys/module/apparmor
[ -d $module ] || exit 0 # do not load without AppArmor in kernel
[ -x /sbin/apparmor_parser ] || exit 0 # do not load without parser
aafs=/sys/kernel/security/apparmor
[ -d $aafs ] || exit 0 # do not load if unmounted
[ -w $aafs/.load ] || exit 1 # fail if cannot load profiles
params=$module/parameters
[ -r $params/enabled ] || exit 0 # do not load if missing
read enabled < $params/enabled || exit 1 # if this fails, something went wrong
[ "$enabled" = "Y" ] || exit 0 # do not load if disabled
/sbin/apparmor_parser -r -W "$profile" || exit 0 # LP: #1058356
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