[CI] Add bindep.txt

Bindep is a tool for checking the presence of binary
packages needed to use an application / library. It
started life as a way to make it easier to set up a
development environment for OpenStack projects.

Infra has been looking to drop the global
bindep_fallback.txt [1][2] file for all
OpenStack projects, they recommend that projects
maintain their own with packages as necessary.

[1] http://lists.openstack.org/pipermail/openstack-infra/2018-April/005926.html
[2] http://lists.openstack.org/pipermail/openstack-discuss/2019-June/006888.html
Change-Id: I1824f132b0ffadc6c9179582d37295f3abed355f

bindep.txt

@@ -0,0 +1,35 @@
+# This is a cross-platform list tracking distribution packages needed for
+# install and tests;
+# see https://docs.openstack.org/infra/bindep/ for additional information.
+
+build-essential [platform:dpkg test]
+gcc [platform:rpm test]
+# gettext and graphviz are needed by doc builds only. For transition,
+# have them in both doc and test.
+# TODO(jaegerandi): Remove test once infra scripts are updated.
+gettext [!platform:suse doc test]
+gettext-runtime [platform:suse doc test]
+graphviz [doc test]
+libffi-dev [platform:dpkg]
+libffi-devel [platform:redhat]
+libffi48-devel [platform:suse]
+virtual/libffi [platform:gentoo]
+libssl-dev [platform:dpkg]
+openssl-devel [platform:rpm !platform:suse]
+libopenssl-devel [platform:suse !platform:rpm]
+locales [platform:debian]
+mariadb [platform:rpm]
+mariadb-server [platform:redhat]
+mariadb-devel [platform:redhat]
+libmysqlclient-dev [platform:dpkg]
+libmysqlclient-devel [platform:suse]
+libpq-dev [platform:dpkg]
+mysql-client [platform:dpkg]
+mysql-server [platform:dpkg]
+postgresql
+postgresql-client [platform:dpkg]
+postgresql-devel [platform:rpm]
+postgresql-server [platform:rpm]
+libxml2-dev [platform:dpkg test]
+libxslt-devel [platform:rpm test]
+libxslt1-dev [platform:dpkg test]

tox.ini

@@ -88,6 +88,18 @@ commands =
   doc8 --ignore D001 --ignore-path .tox --ignore-path doc/build --ignore-path manila.egg-info -e .txt -e .rst -e .inc
 whitelist_externals = rm
 
+[testenv:bindep]
+# Do not install any requirements. We want this to be fast and work even if
+# system dependencies are missing, since it's used to tell you what system
+# dependencies are missing! This also means that bindep must be installed
+# separately, outside of the requirements files, and develop mode disabled
+# explicitly to avoid unnecessarily installing the checked-out repo too (this
+# further relies on "tox.skipsdist = True" above).
+basepython = python3
+deps = bindep
+commands = bindep test
+usedevelop = False
+
 [testenv:cover]
 basepython = python3
 setenv =