add non-voting multinode job for networking-odl carbon release

Multinode networking-odl setup test is required as part
of Neutron Stadium evolution [1]. Set to non-voting
untill upstream ODL issues are fixed and it's proven stable.

[1] https://blueprints.launchpad.net/networking-odl/+spec/
neutron-stadium-evolution

Change-Id: I090937d1eeb8892b95267f8a6ad11b9673f4140b
Closes-bug: #1633242

jenkins/jobs/networking-odl.yaml

@@ -151,3 +151,69 @@
     publishers:
       - devstack-logs
       - console-log
+
+- job-template:
+    name: '{pipeline}-tempest-dsvm-networking-odl-multinode-{odl-release-base}{job-suffix}'
+    node: '{node}'
+
+    wrappers:
+      - build-timeout:
+          timeout: 180
+      - timestamps
+
+    builders:
+      - print-template-name:
+          template-name: "{template-name}"
+      - link-logs
+      - net-info
+      - devstack-checkout
+      - shell: |
+          #!/bin/bash -xe
+          export PYTHONUNBUFFERED=true
+          export DEVSTACK_GATE_NEUTRON=1
+          # Make sure tempest is installed, but run it out of the post_test_hooks.sh
+          # script from the networking-odl repository.
+          export DEVSTACK_GATE_TEMPEST=1
+          export DEVSTACK_GATE_TEMPEST_NOTESTS=1
+
+          export BRANCH_OVERRIDE={branch-override}
+          if [ "$BRANCH_OVERRIDE" != "default" ] ; then
+              export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
+          fi
+          # Because we are testing a non standard project, add
+          # our project repository. This makes zuul do the right
+          # reference magic for testing changes.
+          export PROJECTS="openstack/networking-odl $PROJECTS"
+          # Note the actual url here is somewhat irrelevant because it
+          # caches in nodepool, however make it a valid url for
+          # documentation purposes.
+          export DEVSTACK_LOCAL_CONFIG="enable_plugin networking-odl git://git.openstack.org/openstack/networking-odl"
+
+          # Keep localrc to be able to set some vars in pre_test_hook
+          export KEEP_LOCALRC=1
+
+          # specify ODL release to use
+          export ODL_RELEASE_BASE={odl-release-base}
+
+          function pre_test_hook {{
+              if [ -f $BASE/new/networking-odl/devstack/pre_test_hook.sh ] ; then
+                  . $BASE/new/networking-odl/devstack/pre_test_hook.sh
+              fi
+          }}
+          export -f pre_test_hook
+
+          function post_test_hook {{
+              if [ -f $BASE/new/networking-odl/devstack/post_test_hook.sh ] ; then
+                  . $BASE/new/networking-odl/devstack/post_test_hook.sh
+              fi
+          }}
+          export -f post_test_hook
+
+          export DEVSTACK_GATE_TOPOLOGY="multinode"
+
+          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

jenkins/jobs/projects.yaml

@@ -7431,6 +7431,12 @@
           job-suffix: '-liberty'
           odl-release-base: 'beryllium-snapshot'
           branch-override: stable/liberty
+      - '{pipeline}-tempest-dsvm-networking-odl-multinode-{odl-release-base}{job-suffix}':
+          pipeline: gate
+          node: ubuntu-xenial
+          job-suffix: '-nv'
+          odl-release-base: 'carbon-snapshot'
+          branch-override: default
       - '{pipeline}-rally-dsvm-networking-odl-{odl-release-base}{job-suffix}':
           pipeline: gate
           node: ubuntu-xenial

zuul/layout.yaml

@@ -11701,6 +11701,7 @@ projects:
       - gate-tempest-dsvm-networking-odl-carbon-snapshot-liberty-nv
       - gate-tempest-dsvm-networking-odl-carbon-snapshot-mitaka-nv
       - gate-tempest-dsvm-networking-odl-carbon-snapshot
+      - gate-tempest-dsvm-networking-odl-multinode-carbon-snapshot-nv
       - gate-rally-dsvm-networking-odl-beryllium-snapshot-nv
       - gate-rally-dsvm-networking-odl-boron-snapshot-nv
       - gate-rally-dsvm-networking-odl-carbon-snapshot-nv