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config() {
NEW="$1"
OLD="$(dirname $NEW)/$(basename $NEW .new)"
# If there's no config file by that name, mv it over:
if [ ! -r $OLD ]; then
mv $NEW $OLD
elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
# toss the redundant copy
rm $NEW
fi
# Otherwise, we leave the .new copy for the admin to consider...
}
preserve_perms() {
NEW="$1"
OLD="$(dirname $NEW)/$(basename $NEW .new)"
if [ -e $OLD ]; then
cp -a $OLD ${NEW}.incoming
cat $NEW > ${NEW}.incoming
mv ${NEW}.incoming $NEW
fi
config $NEW
}
preserve_perms etc/rc.d/rc.docker.new
config etc/default/docker.new
config etc/logrotate.d/docker.new
# Reload udev rules, we just added one with this package:
if [ -x /sbin/udevadm ]; then
/sbin/udevadm control --reload-rules
fi
# Group 'docker' (grpId=281) is also used by SBo.
DOCKER_GID=${DOCKER_GID:-281}
# Only way to create and use the correct uid and gid on the target system,
# is to use chroot:
chroot . <<EOR 2>/dev/null
# Add the '${DOCKER_GID}' group if it doesn't exist already:
/usr/sbin/groupadd -g ${DOCKER_GID} docker 2> /dev/null
EOR
# Update rc.local so that docker daemon will be started on boot:
if ! grep "rc.docker" etc/rc.d/rc.local 1>/dev/null 2>&1 ; then
cat <<_EOM_ >> etc/rc.d/rc.local
if [ -x /etc/rc.d/rc.docker ]; then
# Start Docker daemon:
echo "Starting Docker daemon: /etc/rc.d/rc.docker start"
/etc/rc.d/rc.docker start
fi
_EOM_
fi
# Update rc.local_shutdown so that docker daemon will be stopped:
if ! grep "rc.docker" etc/rc.d/rc.local_shutdown 1>/dev/null 2>&1 ; then
cat <<_EOM2_ >> etc/rc.d/rc.local_shutdown
if [ -x /etc/rc.d/rc.docker ]; then
# Stop Docker daemon:
echo "Stopping Docker daemon: /etc/rc.d/rc.docker stop"
/etc/rc.d/rc.docker stop
fi
_EOM2_
fi
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