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moby--moby/contrib/init/sysvinit/docker

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#!/bin/sh
### BEGIN INIT INFO
# Provides: docker
# Required-Start: $syslog $remote_fs
# Required-Stop: $syslog $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Create lightweight, portable, self-sufficient containers.
# Description:
# Docker is an open-source project to easily create lightweight, portable,
# self-sufficient containers from any application. The same container that a
# developer builds and tests on a laptop can run at scale, in production, on
# VMs, bare metal, OpenStack clusters, public clouds and more.
### END INIT INFO
BASE=$(basename $0)
DOCKER=/usr/bin/$BASE
DOCKER_PIDFILE=/var/run/$BASE.pid
DOCKER_OPTS=
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
# Get lsb functions
. /lib/lsb/init-functions
if [ -f /etc/default/$BASE ]; then
. /etc/default/$BASE
fi
# see also init_is_upstart in /lib/lsb/init-functions (which isn't available in Ubuntu 12.04, or we'd use it)
if [ -x /sbin/initctl ] && /sbin/initctl version 2>/dev/null | /bin/grep -q upstart; then
log_failure_msg "Docker is managed via upstart, try using service $BASE $1"
exit 1
fi
# Check docker is present
if [ ! -x $DOCKER ]; then
log_failure_msg "$DOCKER not present or not executable"
exit 1
fi
fail_unless_root() {
if [ "$(id -u)" != '0' ]; then
log_failure_msg "Docker must be run as root"
exit 1
fi
}
case "$1" in
start)
fail_unless_root
log_begin_msg "Starting Docker: $BASE"
mount | grep cgroup >/dev/null || mount -t cgroup none /sys/fs/cgroup 2>/dev/null
start-stop-daemon --start --background \
--exec "$DOCKER" \
--pidfile "$DOCKER_PIDFILE" \
-- -d -p "$DOCKER_PIDFILE" \
$DOCKER_OPTS
log_end_msg $?
;;
stop)
fail_unless_root
log_begin_msg "Stopping Docker: $BASE"
start-stop-daemon --stop \
--pidfile "$DOCKER_PIDFILE"
log_end_msg $?
;;
restart)
fail_unless_root
docker_pid=`cat "$DOCKER_PIDFILE" 2>/dev/null`
[ -n "$docker_pid" ] \
&& ps -p $docker_pid > /dev/null 2>&1 \
&& $0 stop
$0 start
;;
force-reload)
fail_unless_root
$0 restart
;;
status)
status_of_proc -p "$DOCKER_PIDFILE" "$DOCKER" docker
;;
*)
echo "Usage: $0 {start|stop|restart|status}"
exit 1
;;
esac
exit 0