Install Docker CE on Red Hat 7?

I am a newbie to Linux environment, so please forgive me if asking an obvious question:
Is there any distribution of Docker CE that can be installed and works on Red Hat 7 in a x86 environment?
Do any of the versions for Centos, Fedora or Debian install to a Red Hat environment?

As far as I’ve read there is only an EE version of Docker for Red Hat.
My problem is that I need it for evaluation for approx. 3 months, but EE only delivers 1 month trial.