Add a shade functional test for keystone v2

Our functional tests should work against both keystone v2 and keystone
v3. devstack now runs with both, so modify clouds.yaml to request v2
instead of v3.

Change-Id: Ie58af3e9eeca301fbf25e0170e011c9dd10235c2

jenkins/jobs/projects.yaml

@@ -4947,6 +4947,11 @@
       - python-jobs
       - pypi-jobs
       - infra-publish-jobs
+      - '{pipeline}-shade-dsvm-functional-keystone2{branch-designator}':
+          pipeline: gate
+          node: 'devstack-precise || devstack-trusty'
+          branch-designator: ''
+          branch-override: default
       - '{pipeline}-shade-dsvm-functional-neutron{branch-designator}':
           pipeline: gate
           node: 'devstack-precise || devstack-trusty'

jenkins/jobs/shade.yaml

@@ -1,3 +1,41 @@
+- job-template:
+    name: '{pipeline}-shade-dsvm-functional-keystone2{branch-designator}'
+    node: '{node}'
+
+    wrappers:
+      - build-timeout:
+          timeout: 65
+      - timestamps
+
+    builders:
+      - link-logs
+      - net-info
+      - devstack-checkout
+      - shell: |
+          #!/bin/bash -xe
+          export PYTHONUNBUFFERED=true
+          export DEVSTACK_GATE_TIMEOUT=60
+          export DEVSTACK_GATE_NEUTRON=1
+          export PROJECTS="openstack-infra/shade $PROJECTS"
+          export BRANCH_OVERRIDE={branch-override}
+          if [ "$BRANCH_OVERRIDE" != "default" ] ; then
+              export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
+          fi
+
+          function post_test_hook {{
+              $BASE/new/shade/shade/tests/functional/hooks/post_test_hook.sh
+          }}
+          export -f post_test_hook
+
+          sed -ie 's/identity_api_version: 3/identity_api_version: 2.0/g' ~/.config/openstack/clouds.yaml
+          sed -ie '/^.*domain_id.*$/d' ~/.config/openstack/clouds.yaml
+          cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
+          ./safe-devstack-vm-gate-wrap.sh
+
+    publishers:
+      - devstack-logs
+      - console-log
+
 - job-template:
     name: '{pipeline}-shade-dsvm-functional-neutron{branch-designator}'
     node: '{node}'

zuul/layout.yaml

@@ -6912,10 +6912,12 @@ projects:
       - name: infra-publish-jobs
     check:
       - shade-coverage
+      - gate-shade-dsvm-functional-keystone2
       - gate-shade-dsvm-functional-neutron
       - gate-shade-dsvm-functional-nova
       - gate-dsvm-nodepool-src-shade
     gate:
+      - gate-shade-dsvm-functional-keystone2
       - gate-shade-dsvm-functional-neutron
       - gate-shade-dsvm-functional-nova
     post: