Docker + GitLab - useful commands

docker-gitlab-ce-useful.sh

# recursively find the amount stored in directories (with depth 1)
sudo du -h / -d 1

# clearing of every unused Docker containers
# ( finded from: http://stackoverflow.com/questions/32723111/how-to-remove-old-and-unused-docker-images )
docker rm -v $(docker ps --filter status=exited -q 2>/dev/null) 2>/dev/null
docker rmi $(docker images --filter dangling=true -q 2>/dev/null) 2>/dev/null

# making backup of Docker (docker-ce deploying as Docker container)
docker exec -i gitlab-container-name /opt/gitlab/bin/gitlab-rake gitlab:backup:create