Add python3 unit test with drivers installed

Adds unit-with-driver-libs-python3 tox environment, and corresponding
ironic-with-driver-libs-python3 Zuul job.

The lack of this job was highlighted by
https://review.openstack.org/#/c/641972 which marks UcsSdk as supported
in python 2 only.

Change-Id: Ibc0f9a8fddd8f6b358efed1c4c93b95d4e01bc13

tox.ini

@@ -25,6 +25,11 @@ basepython = python2
 deps = {[testenv]deps}
     -r{toxinidir}/driver-requirements.txt
 
+[testenv:unit-with-driver-libs-python3]
+basepython = python3
+deps = {[testenv]deps}
+    -r{toxinidir}/driver-requirements.txt
+
 [testenv:genstates]
 basepython = python3
 deps = {[testenv]deps}

zuul.d/ironic-jobs.yaml

@@ -458,3 +458,11 @@
       Run unit tests with driver dependencies installed.
     vars:
       tox_envlist: unit-with-driver-libs
+
+- job:
+    name: ironic-tox-unit-with-driver-libs-python3
+    parent: tox
+    description: |
+      Run python 3 unit tests with driver dependencies installed.
+    vars:
+      tox_envlist: unit-with-driver-libs-python3

zuul.d/project.yaml

@@ -11,6 +11,7 @@
     check:
       jobs:
         - ironic-tox-unit-with-driver-libs
+        - ironic-tox-unit-with-driver-libs-python3
         - ironic-standalone
         - ironic-tempest-functional-python2
         - ironic-tempest-functional-python3
@@ -37,6 +38,7 @@
       queue: ironic
       jobs:
         - ironic-tox-unit-with-driver-libs
+        - ironic-tox-unit-with-driver-libs-python3
         - ironic-standalone
         - ironic-tempest-functional-python2
         - ironic-tempest-functional-python3