add lower-constraints job

Create a tox environment for running the unit tests against the lower
bounds of the dependencies.

Create a lower-constraints.txt to be used to enforce the lower bounds
in those tests.

Add openstack-tox-lower-constraints job to the zuul configuration.

See http://lists.openstack.org/pipermail/openstack-dev/2018-March/128352.html
for more details.

Also fix the lower bound for requests-kerberos.

Change-Id: Ie5da1d132321b2cffea3eb8522462daad45900b5
Depends-On: https://review.openstack.org/555034
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

.zuul.yaml

@@ -5,3 +5,9 @@
       - osc-tox-unit-tips
       - shade-functional-tips
       - shade-tox-tips
+    check:
+      jobs:
+        - openstack-tox-lower-constraints
+    gate:
+      jobs:
+        - openstack-tox-lower-constraints

bindep.txt

@@ -6,3 +6,9 @@ python-dev [platform:dpkg test]
 python-devel [platform:rpm test]
 libkrb5-dev [platform:dpkg test]
 krb5-devel [platform:rpm test]
+libxml2-dev [platform:dpkg]
+libxml2-devel [platform:rpm]
+libxslt-devel [platform:rpm]
+libxslt1-dev [platform:dpkg]
+zlib-devel [platform:rpm]
+zlib1g-dev [platform:dpkg]

lower-constraints.txt

@@ -0,0 +1,80 @@
+alabaster==0.7.10
+appdirs==1.4.3
+Babel==2.5.3
+bandit==1.1.0
+betamax==0.7.0
+certifi==2018.1.18
+chardet==3.0.4
+cliff==2.11.0
+cmd2==0.8.1
+coverage==4.0
+debtcollector==1.19.0
+docutils==0.14
+dulwich==0.19.0
+extras==1.0.0
+fixtures==3.0.0
+flake8-docstrings==0.2.1.post1
+flake8-import-order==0.17.1
+flake8==2.5.5
+future==0.16.0
+gitdb2==2.0.3
+GitPython==2.1.8
+hacking==0.12.0
+idna==2.6
+imagesize==1.0.0
+iso8601==0.1.11
+Jinja2==2.10
+linecache2==1.0.0
+lxml==3.4.1
+MarkupSafe==1.0
+mccabe==0.2.1
+mock==2.0.0
+monotonic==1.4
+mox3==0.25.0
+netaddr==0.7.19
+netifaces==0.10.6
+oauthlib==0.6.2
+openstack-requirements==1.2.0
+openstackdocstheme==1.18.1
+os-client-config==1.29.0
+os-testr==1.0.0
+oslo.config==5.2.0
+oslo.i18n==3.20.0
+oslo.utils==3.33.0
+oslotest==3.2.0
+packaging==17.1
+Parsley==1.3
+pbr==2.0.0
+pep257==0.7.0
+pep8==1.5.7
+prettytable==0.7.2
+pycodestyle==2.3.1
+pyflakes==0.8.1
+Pygments==2.2.0
+pyparsing==2.2.0
+pyperclip==1.6.0
+python-mimeparse==1.6.0
+python-subunit==1.2.0
+pytz==2018.3
+PyYAML==3.12
+reno==2.5.0
+requests-kerberos==0.8.0
+requests-mock==1.2.0
+requests==2.14.2
+requestsexceptions==1.4.0
+rfc3986==1.1.0
+six==1.10.0
+smmap2==2.0.3
+snowballstemmer==1.2.1
+Sphinx==1.6.2
+sphinxcontrib-websupport==1.0.1
+stestr==1.0.0
+stevedore==1.20.0
+testrepository==0.0.20
+testresources==2.0.0
+testtools==2.2.0
+traceback2==1.4.0
+unittest2==1.1.0
+urllib3==1.22
+voluptuous==0.11.1
+wrapt==1.10.11

setup.cfg

@@ -24,7 +24,7 @@ packages =
 
 [extras]
 kerberos =
-  requests-kerberos>=0.6 # ISC
+  requests-kerberos>=0.8.0 # ISC
 saml2 =
   lxml!=3.7.0,>=3.4.1 # BSD
 oauth1 =

test-requirements.txt

@@ -23,6 +23,6 @@ stestr>=1.0.0 # Apache-2.0
 testresources>=2.0.0 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT
 PyYAML>=3.12 # MIT
-requests-kerberos>=0.6 # ISC
+requests-kerberos>=0.8.0 # ISC
 lxml!=3.7.0,>=3.4.1 # BSD
 oauthlib>=0.6.2 # BSD

tox.ini

@@ -78,3 +78,10 @@ commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasen
 
 [hacking]
 local-check-factory = keystoneauth1.hacking.checks.factory
+
+[testenv:lower-constraints]
+basepython = python3
+deps =
+  -c{toxinidir}/lower-constraints.txt
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt