Cinder experimental multinode grenade job

This patch enables experimental multinode grenade job for Cinder that
will test compatibility of master c-api and c-sch with stable c-vols.

Co-Authored-By: Karthik Prabhu Vinod <karthik.prabhu.vinod@intel.com>

Change-Id: I01841edadde9d9915ac5b9a2fda04dda107098ef
Depends-On: I4532bdcfa845cf0a405f68371c61559b0a70f9c1

jenkins/jobs/devstack-gate.yaml

@@ -1023,6 +1023,40 @@
       - console-log
 
 
+- job-template:
+    name: '{pipeline}-grenade-dsvm-cinder-multinode{job-suffix}'
+    node: '{node}'
+
+    wrappers:
+      - build-timeout:
+          timeout: 180
+      - timestamps
+
+    builders:
+      - link-logs
+      - net-info
+      - devstack-checkout
+      - shell: |
+          #!/bin/bash -xe
+          export PYTHONUNBUFFERED=true
+          export DEVSTACK_GATE_CONFIGDRIVE=0
+          export DEVSTACK_GATE_GRENADE=pullup
+          export PROJECTS="openstack-dev/grenade $PROJECTS"
+          export BRANCH_OVERRIDE={branch-override}
+          if [ "$BRANCH_OVERRIDE" != "default" ] ; then
+              export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
+          fi
+          export DEVSTACK_GATE_TOPOLOGY="multinode"
+          export DEVSTACK_GATE_CINDER_MN_GRENADE=1
+
+          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}-grenade-dsvm-neutron-dvr-multinode{job-suffix}'
     node: '{node}'

jenkins/jobs/projects.yaml

@@ -1049,6 +1049,11 @@
           node:
             - ubuntu-trusty
             - ubuntu-xenial
+      - '{pipeline}-grenade-dsvm-cinder-multinode{job-suffix}':
+          pipeline: gate
+          node: ubuntu-trusty-2-node
+          job-suffix: '-nv'
+          branch-override: default
 
 - project:
     name: cinder-specs

zuul/layout.yaml

@@ -5672,6 +5672,7 @@ projects:
       - gate-grenade-dsvm-forward
       - gate-tempest-dsvm-full-sheepdog-src-os-brick-nv
       - gate-tempest-dsvm-full-devstack-plugin-nfs-nv
+      - gate-grenade-dsvm-cinder-multinode-nv
 
   - name: openstack/cinder-specs
     template: