Adding Python3 Functional Test Gate for Barbican

Adding a non-voting job that runs Barbican's functional test
suite using Python 3.

Partially-Implements: blueprint goal-py3

Change-Id: Ifd89039513dd27807a6866ef56d41cbb0d521afe

jenkins/jobs/barbican.yaml

@@ -19,6 +19,12 @@
           export PROJECTS="openstack/python-barbicanclient $PROJECTS"
           export PROJECTS="openstack/barbican-tempest-plugin $PROJECTS"
           export DEVSTACK_LOCAL_CONFIG="enable_plugin barbican git://git.openstack.org/openstack/barbican"
+          if [ "{special}" == "-py35" ] ; then
+             export DEVSTACK_GATE_USE_PYTHON3=True
+             export DEVSTACK_LOCAL_CONFIG+=$'\n'"disable_python3_package swift"
+          else
+             export DEVSTACK_GATE_USE_PYTHON3=False
+          fi
 
           function gate_hook {{
               $BASE/new/barbican/devstack/gate_hook.sh

jenkins/jobs/projects.yaml

@@ -366,6 +366,12 @@
           services: tempest,keystone
           special: ''
           suffix: ''
+      - 'gate-barbican-{plugin}-devstack{special}-{node}{suffix}':
+          plugin: simple-crypto
+          node: ubuntu-xenial
+          services: tempest,keystone
+          special: '-py35'
+          suffix: '-nv'
       - 'gate-barbican-{plugin}-devstack{special}-{node}{suffix}':
           plugin: simple-crypto
           node: ubuntu-trusty

zuul/layout.yaml

@@ -2861,6 +2861,9 @@ jobs:
           - ^.*\.rst$
           - ^doc/.*$
 
+  - name: ^gate-barbican-simple-crypto-devstack-py35-.*$
+    branch: ^(?!stable/(mitaka|newton|ocata)).*$
+
   - name: gate-designate-python34
     branch: ^stable/mitaka$
 
@@ -5893,6 +5896,7 @@ projects:
       - barbican-coverage-ubuntu-xenial-nv
       - gate-barbican-simple-crypto-devstack-ubuntu-trusty
       - gate-barbican-simple-crypto-devstack-ubuntu-xenial
+      - gate-barbican-simple-crypto-devstack-py35-ubuntu-xenial-nv
       - gate-barbican-dogtag-devstack-fedora-25-nv
       - gate-barbican-kmip-devstack-ubuntu-xenial-nv
       - gate-barbican-simple-crypto-devstack-postgres-ubuntu-trusty-nv