bamdadd/Proxy exit code of a process in docker for CI

## Proxy exit code of a process in docker for CI
function exit_code {
  local OUTPUT="$(docker ps -n 1 --format '{{.Status}}' | tr "\(" " " | tr "\)" " " | awk '{print $2}')"
  exit ${OUTPUT:1:1}
}

docker ps ubuntu /bin/true
exit_code

docker ps ubuntu /bin/false
exit_code
	function exit_code {
	local OUTPUT="$(docker ps -n 1 --format '{{.Status}}' \| tr "\(" " " \| tr "\)" " " \| awk '{print $2}')"
	exit ${OUTPUT:1:1}
	}

	docker ps ubuntu /bin/true
	exit_code

	docker ps ubuntu /bin/false
	exit_code