Rename functional to functional-py27 and add functional-py37

Change-Id: Ib45b63991793fa05cddcc23491d6c1348ba1cb86

.zuul.yaml

@@ -1,16 +1,16 @@
 ---
 - job:
-    name: kollacli-tox-functional
+    name: kollacli-tox-functional-py27
     parent: openstack-tox
     description: |
-      Run tox-based functional tests for the OpenStack Kolla-cli project.
+      Run tox-based py27 functional tests for the OpenStack Kolla-cli project.
       Uses tox with the ``functional`` environment.
     irrelevant-files:
       - ^.*\.rst$
       - ^doc/source/.*$
       - ^releasenotes/.*$
     vars:
-      tox_envlist: functional
+      tox_envlist: functional-py27
     timeout: 3600
 
 - job:
@@ -45,10 +45,10 @@
     check:
       jobs:
         - kollacli-tox-mypy
-        - kollacli-tox-functional
+        - kollacli-tox-functional-py27
         - kollacli-tox-functional-py36
     gate:
       jobs:
         - kollacli-tox-mypy
-        - kollacli-tox-functional
+        - kollacli-tox-functional-py27
         - kollacli-tox-functional-py36

tox.ini

@@ -50,8 +50,20 @@ commands =
   bash -c "pushd /tmp/kollaclitest/usr/share/kolla-ansible/git; python setup.py install; popd"
   stestr run {posargs} --serial
 
+[testenv:functional-py27]
+basepython = python2.7
+setenv = {[testenv:functional]setenv}
+commands = {[testenv:functional]commands}
+whitelist_externals = {[testenv:functional]whitelist_externals}
+
 [testenv:functional-py36]
-basepython = py36: python3.6
+basepython = python3.6
+setenv = {[testenv:functional]setenv}
+commands = {[testenv:functional]commands}
+whitelist_externals = {[testenv:functional]whitelist_externals}
+
+[testenv:functional-py37]
+basepython = python3.7
 setenv = {[testenv:functional]setenv}
 commands = {[testenv:functional]commands}
 whitelist_externals = {[testenv:functional]whitelist_externals}