Banging your head against the wall because you don't have mysql is a strange reaction. It's not that hard to fix it. There will be many more occasions for headbanging down the road, I promise. Such as missing a comma in a config file, which provokes an error that points to everything but that config file.

Having said that, the Keystone Installation Guide says:

Ensure that you have completed the prerequisite installation steps in the Openstack Install Guide before proceeding.

The link unfortunately doesn't point to the first page of the environment description. In fact, in my opinion it should point to the beginning of the install guides. However, you are trying to do the equivalent of "Linux from Scratch", and it is your responsibility to do the research before starting the installation of a beast as complex as OpenStack. Remember, OpenStack is not meant to be a consumer product with a polished interface à la Windows.

Accurate information about MySQL: https://docs.openstack.org/install-gu.... After that, the following pages cover installation of message queue, memcached and etcd.