ensure stop is always called at the end of entry script

interrupts were not properly handled by the entry script, and could leave
containers active. This is fixed by running stop in a cleanup function, called
on exit.

root/var/signalytic/clientapps/streamline/streamline-emr/entry

@@ -2,6 +2,13 @@
 
 LOCATION="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 
+function cleanup {
+  ${LOCATION}/stop
+  echo "done."
+}
+
+trap cleanup EXIT
+
 # start all instances
 ${LOCATION}/start
 
@@ -15,6 +22,3 @@ for f in $(find ${LOCATION} -mindepth 2 -maxdepth 3 -name docker-compose.yml); d
 done
 echo "waiting on processes: ${pids[@]}"
 wait -n ${pids[@]} > /dev/null
-
-# cleanup
-${LOCATION}/stop