Freeing space in docker build machine

#Prune everything. This works well and frees your disk spaces
docker system prune

#following are few other pruning commands
docker image prune
docker image prune -a
docker container prune

Docker Build Issues and resolutions

When you want to remove folder or file in Docker, you need to remove in separate RUN command.

However, there is not a easy way to remove a directory or file in docker

Docker how to setup sudo

chmod u+w /etc/sudoers
echo "ALL          ALL = {ALL}  NOPASSWD:   ALL">>/etc/sudoerss

Useful Docker Commands

docker ps --filter status=running

References

• Pruning referenced: https://docs.docker.com/config/pruning/
• Redhat docker build info: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_atomic_host/7/html/getting_started_with_containers/using_red_hat_universal_base_images_standard_minimal_and_runtimes