title: can we convert a live server to docker image
body: <p>We are having a custom linux ( an RHEL spin-off) with security enhancements made to harden the box. Now we are planning to move to docker for dev-ops. Is there a way to convert the running box / ova / iso to docker? We are pretty new to docker and we tried to install on a rhel image step by step , it is difficult to harden again as we depend on 3rd party vendors. </p>