SHELL

docker image get extract dockerfile

docker history nginx:latest --no-trunc > nginx.dockerfile
cat nginx.dockerfile

docker extract file from image

docker cp $(docker create registry.example.com/ansible-base:latest):/home/ansible/.ssh/id_rsa ./hacked_ssh_key

docker image get extract dockerfile

docker run --rm -it 
    -v /var/run/docker.sock:/var/run/docker.sock 
    wagoodman/dive:latest example3:recovered