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.

Remove the cap on eventlet at the same time to make the requirements
match the global list.

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

Change-Id: I5efe5f6e7a0725f1f20de11ca0b2fe656a4c099d
Depends-On: https://review.openstack.org/563087
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

.zuul.yaml

@@ -29,6 +29,8 @@
     check:
       jobs:
         - monascalog-tempest
+        - openstack-tox-lower-constraints
     gate:
       jobs:
         - monascalog-tempest
+        - openstack-tox-lower-constraints

lower-constraints.txt

@@ -0,0 +1,94 @@
+alabaster==0.7.10
+appdirs==1.3.0
+Babel==2.3.4
+bandit==1.1.0
+bashate==0.5.1
+chardet==3.0.4
+configparser==3.5.0
+coverage==4.0
+debtcollector==1.2.0
+doc8==0.6.0
+docutils==0.11
+dulwich==0.15.0
+eventlet==0.18.2
+extras==1.0.0
+falcon==1.0.0
+fixtures==3.0.0
+flake8==2.5.5
+future==0.16.0
+gevent==1.2.2
+gitdb==0.6.4
+GitPython==1.0.1
+greenlet==0.4.10
+hacking==0.12.0
+imagesize==0.7.1
+iso8601==0.1.11
+Jinja2==2.10
+kazoo==2.2
+keystoneauth1==3.4.0
+keystonemiddleware==4.17.0
+linecache2==1.0.0
+MarkupSafe==1.0
+mccabe==0.2.1
+mock==2.0.0
+monasca-common==1.4.0
+monasca-statsd==1.1.0
+monotonic==0.6
+mox3==0.20.0
+msgpack-python==0.4.0
+netaddr==0.7.18
+netifaces==0.10.4
+openstackdocstheme==1.18.1
+os-api-ref==1.4.0
+os-client-config==1.28.0
+os-testr==1.0.0
+oslo.config==5.1.0
+oslo.context==2.19.2
+oslo.i18n==3.15.3
+oslo.log==3.36.0
+oslo.middleware==3.31.0
+oslo.policy==1.30.0
+oslo.serialization==2.18.0
+oslo.utils==3.33.0
+oslotest==3.2.0
+Paste==2.0.2
+PasteDeploy==1.5.0
+pbr==2.0.0
+pep8==1.5.7
+positional==1.2.1
+pycadf==1.1.0
+pyflakes==0.8.1
+Pygments==2.2.0
+pyinotify==0.9.6
+pykafka==2.5.0
+PyMySQL==0.7.6
+pyparsing==2.1.0
+python-dateutil==2.5.3
+python-keystoneclient==3.8.0
+python-mimeparse==1.6.0
+python-statsd==2.1.0
+python-subunit==1.0.0
+pytz==2013.6
+PyYAML==3.12
+reno==2.5.0
+requests==2.14.2
+requestsexceptions==1.2.0
+restructuredtext-lint==1.1.1
+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
+statsd==3.2.1
+stestr==1.0.0
+stevedore==1.20.0
+tabulate==0.8.1
+testrepository==0.0.18
+testtools==2.2.0
+traceback2==1.4.0
+ujson==1.35
+unittest2==1.1.0
+WebOb==1.7.1
+wrapt==1.7.0

requirements.txt

@@ -14,5 +14,5 @@ oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
 oslo.utils>=3.33.0 # Apache-2.0
 PasteDeploy>=1.5.0 # MIT
 monasca-common>=1.4.0 # Apache-2.0
-eventlet!=0.18.3,!=0.20.1,<0.21.0,>=0.18.2 # MIT
+eventlet!=0.18.3,!=0.20.1,>=0.18.2 # MIT
 monasca-statsd>=1.1.0 # Apache-2.0

tox.ini

@@ -160,3 +160,10 @@ enable-extensions = H203,H106
 [hacking]
 import_exceptions =
   six.moves
+
+[testenv:lower-constraints]
+basepython = python3
+deps =
+  -c{toxinidir}/lower-constraints.txt
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt