Pulp

We need an ansible role is needed to serve pulp content via nginx.

A new github repo needs to be created for this new role (pulp/ansible-pulp3_nginx).
This role should install the latest LTS nginx (1.12) and provide pulp nginx conf files.

If a settings.py setting is created as a part of https://pulp.plan.io/issues/2914 the ansible role should change that to 'nginx'

This role should target Fedora 25 and 26.

This role needs to be added to the ansible requirements.yml [0] And should be added as a optional role in the example playbook [1]

[0] https://github.com/pulp/devel/blob/3.0-dev/ansible/requirements.yml
[1] https://github.com/pulp/devel/blob/3.0-dev/ansible/deploy-pulp3.yml