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 adjusted a warning check in the utils.config test due to python3

Also updated requests to 2.18.0 so that the python uploader can use
requests as a context manager which was not added until v2.18.0. See
4847f5b8cd

Change-Id: I78bffdf69113988192afc466d4ce04b3b97e796a
Depends-On: https://review.openstack.org/555034
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
Co-Authored-By: Alex Schultz <aschultz@redhat.com>

lower-constraints.txt

@@ -0,0 +1,114 @@
+alabaster==0.7.10
+appdirs==1.3.0
+asn1crypto==0.23.0
+Babel==2.3.4
+bashate==0.2
+cffi==1.7.0
+cliff==2.8.0
+cmd2==0.8.0
+coverage==4.0
+cryptography==2.1
+debtcollector==1.2.0
+decorator==3.4.0
+deprecation==1.0
+docker-pycreds==0.2.1
+docker==2.4.2
+docutils==0.11
+dogpile.cache==0.6.2
+dulwich==0.15.0
+eventlet==0.20.0
+extras==1.0.0
+fasteners==0.7.0
+fixtures==3.0.0
+flake8==2.5.5
+futures==3.0.0;python_version=='2.7' or python_version=='2.6'
+gitdb==0.6.4
+GitPython==1.0.1
+hacking==0.12.0
+idna==2.6
+imagesize==0.7.1
+iso8601==0.1.11
+Jinja2==2.10
+jmespath==0.9.0
+jsonpatch==1.16
+jsonpointer==1.13
+jsonschema==2.6.0
+keystoneauth1==3.4.0
+linecache2==1.0.0
+MarkupSafe==1.0
+mccabe==0.2.1
+metalsmith==0.9.0
+mistral-lib==0.3.0
+mock==2.0.0
+monotonic==0.6
+mox3==0.20.0
+msgpack-python==0.4.0
+munch==2.1.0
+netaddr==0.7.18
+netifaces==0.10.4
+openstackdocstheme==1.18.1
+openstacksdk==0.11.2
+os-client-config==1.28.0
+os-service-types==1.2.0
+osc-lib==1.8.0
+oslo.concurrency==3.26.0
+oslo.config==5.2.0
+oslo.context==2.19.2
+oslo.i18n==3.15.3
+oslo.log==3.36.0
+oslo.serialization==2.18.0
+oslo.utils==3.33.0
+oslotest==3.2.0
+paramiko==2.0.0
+passlib==1.7.0
+pbr==2.0.0
+pep8==1.5.7
+positional==1.2.1
+prettytable==0.7.2
+pyasn1==0.1.8
+pycparser==2.18
+pyflakes==0.8.1
+Pygments==2.2.0
+pyinotify==0.9.6
+pyOpenSSL==17.1.0
+pyparsing==2.1.0
+pyperclip==1.5.27
+python-cinderclient==3.3.0
+python-dateutil==2.5.3
+python-glanceclient==2.8.0
+python-heatclient==1.10.0
+python-ironic-inspector-client==1.5.0
+python-ironicclient==2.3.0
+python-keystoneclient==3.8.0
+python-mimeparse==1.6.0
+python-mistralclient==3.1.0
+python-novaclient==9.1.0
+python-openstackclient==3.12.0
+python-subunit==1.0.0
+python-swiftclient==3.2.0
+python-zaqarclient==1.0.0
+pytz==2013.6
+PyYAML==3.12
+reno==2.5.0
+requests-mock==1.2.0
+requests==2.18.0
+requestsexceptions==1.2.0
+rfc3986==0.3.1
+simplejson==3.5.1
+six==1.10.0
+smmap==0.9.0
+snowballstemmer==1.2.1
+Sphinx==1.6.2
+sphinxcontrib-websupport==1.0.1
+stestr==2.0.0
+stevedore==1.20.0
+tenacity==4.4.0
+testrepository==0.0.18
+testscenarios==0.4
+testtools==2.2.0
+traceback2==1.4.0
+unittest2==1.1.0
+urllib3===1.21.1
+warlock==1.2.0
+websocket-client==0.44.0
+wrapt==1.7.0

requirements.txt

@@ -30,3 +30,4 @@ tenacity>=4.4.0 # Apache-2.0
 futures>=3.0.0;python_version=='2.7' or python_version=='2.6'  # BSD
 metalsmith>=0.9.0 # Apache-2.0
 jsonschema<3.0.0,>=2.6.0 # MIT
+requests>=2.18.0,!=2.20.0  # Apache-2.0

tox.ini

@@ -69,3 +69,10 @@ exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build,releasenotes
 [testenv:releasenotes]
 basepython = python3
 commands = bash -c tools/releasenotes_tox.sh
+
+[testenv:lower-constraints]
+basepython = python3
+deps =
+  -c{toxinidir}/lower-constraints.txt
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt

tripleo_common/tests/utils/test_config.py

@@ -445,9 +445,17 @@ class TestConfig(base.TestCase):
         with warnings.catch_warnings(record=True) as w:
             self.config.download_config(stack, self.tmp_dir)
             mock_git_init.assert_called_once_with(self.tmp_dir)
-            self.assertEqual(1, len(w))
-            assert issubclass(w[-1].category, DeprecationWarning)
-            assert "group:os-apply-config is deprecated" in str(w[-1].message)
+            # check that we got at least one of the warnings that we expected
+            # to throw
+            self.assertGreaterEqual(len(w), 1)
+            self.assertGreaterEqual(len([x for x in w
+                                         if issubclass(x.category,
+                                                       DeprecationWarning)]),
+                                    1)
+            self.assertGreaterEqual(len([x for x in w
+                                         if "group:os-apply-config"
+                                         in str(x.message)]),
+                                    1)
 
     @patch.object(ooo_config.Config, 'initialize_git_repo')
     @patch('tripleo_common.utils.config.Config.get_deployment_resource_id')

zuul.d/layout.yaml

@@ -67,5 +67,8 @@
             dependencies: *deps_unit_lint
         - tripleo-ci-centos-7-containerized-undercloud-upgrades:
             dependencies: *deps_unit_lint
+        - openstack-tox-lower-constraints
     gate:
       queue: tripleo
+      jobs:
+        - openstack-tox-lower-constraints