node, syscontainer: umount everything under /var/lib/docker/containers
Do not leave any mount point busy under /var/lib/docker/containers
#!/bin/sh
source /run/$NAME-env
+UMOUNT_TARGET=/var/lib/docker/containers
+
+findmnt -R -A -nuo TARGET --raw $UMOUNT_TARGET | tr -d '\r' | grep -v "^$UMOUNT_TARGET$" | \
+while read i;
+do
+ umount -lR $i
+done
+
exec /usr/local/bin/origin-node-run.sh
