How can I change the root directory the docker daemon uses?

Solution Verified - Updated -

Issue

  • Need to change the root directory the docker daemon uses.
  • I want to use a directory other than /var/lib/docker for the docker container runtime.
  • Docker uses /var/lib/docker as default root directory. It is possible to change this root directory ?
  • Is it possible to change docker root directory ?

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux Atomic Host
  • docker

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