Merge "Use upper-constraints in tox installs" into stable/mitaka

tox.ini

@@ -6,7 +6,7 @@ envlist = py34,py27,pep8
 [testenv]
 setenv = VIRTUAL_ENV={envdir}
 usedevelop = True
-install_command = pip install {opts} {packages}
+install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/tree/upper-constraints.txt?h=stable/mitaka} {opts} {packages}
 whitelist_externals = find
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
@@ -15,6 +15,10 @@ commands =
   ostestr {posargs}
 
 [testenv:releasenotes]
+# NOTE(jaegerandi): This target does not use constraints because
+# upstream infra does not yet support it. Once that's fixed, we can
+# drop the install_command.
+install_command = pip install -U --force-reinstall {opts} {packages}
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees \
          -b html releasenotes/source releasenotes/build/html
 
@@ -48,12 +52,20 @@ commands =
   oslo-config-generator --config-file etc/oslo-config-generator/manila.conf
 
 [testenv:venv]
+# NOTE(jaegerandi): This target does not use constraints because
+# upstream infra does not yet support it. Once that's fixed, we can
+# drop the install_command.
+install_command = pip install -U --force-reinstall {opts} {packages}
 commands = {posargs}
 
 [testenv:docs]
 commands = python setup.py build_sphinx
 
 [testenv:cover]
+# NOTE(jaegerandi): This target does not use constraints because
+# upstream infra does not yet support it. Once that's fixed, we can
+# drop the install_command.
+install_command = pip install -U --force-reinstall {opts} {packages}
 commands = {toxinidir}/tools/cover.sh {posargs}
 
 [testenv:fast8]