Container image to demonstrate the zombie reaping problem which can occur inside containers.
Run a container of this image:
docker container run -d --name zombiebox --rm ghcr.io/heptalium/zombiebox:latest
Run htop inside the container and watch what is happening:
docker container exec -it zombiebox /usr/bin/htop
Quit htop by pressing q, then stop the container:
docker container stop zombiebox
Run a new container with the --init option:
docker container run -d --init --name zombiebox --rm ghcr.io/heptalium/zombiebox:latest
Run htop again:
docker container exec -it zombiebox /usr/bin/htop