Since the "new" Docker release where CE and EE diverged from the single unified Docker, Docker doesn't officialy support or provide installation instructions for using CE on OpenSUSE, SLES or Redhat, those distros are EE-only.
I find this to be a bit of a short-sighted decision on the part of Docker - CE should be available for all platforms that EE is available for.
How can I install the latest version of Docker CE on OpenSUSE Tumbleweed (or similar distro with an RPM-based package manager) which only has support for Docker EE?