Remove proxy or add no_proxy for API endpoint creation.

Beware of creating openstack API endpoints on the controller using proxy environment variables. This is why:

# openstack service create \
>   --name keystone --description "OpenStack Identity" identity
ERROR: openstack Not Found (HTTP 404)

You will need to remove the proxy environment variables or add your controller hostname into the no_proxy environment variable:

# export no_proxy=localhost,127.0.0.0/8,controller

That will resolve the 404 Apache error.

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