Comment 18 for bug 1465086

While this change might be useful, I am afraid that introducing this settings to some projects will brings asymmetry configurations among various openstack projects. We have many many openstack projects and tox setting inconsistency brings inconsistent developer experience. I am not sure why these projects are selected. it doesn't cover all defcore projects for example.
For example, if neutron has proxy settings and nova does not, when a neutron developer tries to fix some nova fix, he/she will feel different experience and might be confused.

Instead, I would suggest to share common knowledge in one place and encourage new developers to read it.