Update README for neutron-horizon-hack

Let's describe the API we need for tox_install.sh.

Change-Id: I5155ebffd3c7e8ec1f354b2afd6dfcb3986795fe
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Andreas Jaeger 2017-12-16 19:35:21 +01:00
parent e1a793b8a1
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@ -9,6 +9,11 @@ inside of a virtualenv, so we can just run it in the sphinx ~/.venv and
get them installed. This will let us work towards a solution that does not
involve a custom install script.
Note that this role only works if the file is called
``tools/tox_install.sh`` and takes three arguments
``constraints-file``, ``opts`` and ``packages``. The script must allow
invocation with the single ``constraints-file`` argument as well.
**Role Variables**
.. zuul:rolevar:: constraints_file