From the tini README;
NOTE: If you are using Docker 1.13 or greater, Tini is included in Docker itself. This includes all versions of Docker CE. To enable Tini, just pass the --init flag to docker run.
Also available, slightly different: https://github.com/Yelp/dumb-init
From the tini README;
Also available, slightly different: https://github.com/Yelp/dumb-init