/etc/init/docker.conf is in docker.io 1.10.3-0ubuntu6.
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 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | description "Docker daemon"
start on (filesystem and net-device-up IFACE!=lo)
stop on runlevel [!2345]
limit nofile 524288 1048576
limit nproc 524288 1048576
respawn
pre-start script
# Cleanup any stale mounts left from previous shutdown
# see https://bugs.launchpad.net/ubuntu/+source/docker.io/+bug/1404300
grep "mapper/docker" /proc/mounts | awk '{ print $2 }' | \
xargs -r umount || true
end script
kill timeout 20
script
# modify these in /etc/default/$UPSTART_JOB (/etc/default/docker)
DOCKER=/usr/bin/$UPSTART_JOB
DOCKER_OPTS=
if [ -f /etc/default/$UPSTART_JOB ]; then
. /etc/default/$UPSTART_JOB
fi
exec "$DOCKER" daemon $DOCKER_OPTS
end script
# Don't emit "started" event until docker.sock is ready.
# See https://github.com/docker/docker/issues/6647
post-start script
DOCKER_OPTS=
if [ -f /etc/default/$UPSTART_JOB ]; then
. /etc/default/$UPSTART_JOB
fi
if ! printf "%s" "$DOCKER_OPTS" | grep -qE -e '-H|--host'; then
while ! [ -e /var/run/docker.sock ]; do
initctl status $UPSTART_JOB | grep -qE "(stop|respawn)/" && exit 1
echo "Waiting for /var/run/docker.sock"
sleep 0.1
done
echo "/var/run/docker.sock is up"
fi
end script
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