Add grenade-dsvm-partial-ncpu test

Add support for grenade based partial upgrade test. Since the partial
upgrade test only supports nova-compute, this job is added to just nova.
Set to non-voting for now with the goal of making this voting once we
get comfortable with it.

Change-Id: Ic680502d4dcc0a8677749bc38bf57b6c76c881f7

modules/openstack_project/files/jenkins_job_builder/config/devstack-gate.yaml

@@ -777,6 +777,34 @@
       - console-log
 
 
+- job-template:
+    name: '{pipeline}-grenade-dsvm-partial-ncpu'
+    node: '{node}'
+
+    wrappers:
+      - timeout:
+          timeout: 125
+          fail: true
+      - timestamps
+
+    builders:
+      - devstack-checkout
+      - shell: |
+          #!/bin/bash -xe
+          export PYTHONUNBUFFERED=true
+          export DEVSTACK_GATE_TIMEOUT=120
+          export DEVSTACK_GATE_TEMPEST=0
+          export DEVSTACK_GATE_GRENADE=1
+          export DEVSTACK_GATE_GRENADE_PARTIAL_NCPU=1
+          cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
+          ./safe-devstack-vm-gate-wrap.sh
+      - link-logs
+
+    publishers:
+      - devstack-logs
+      - console-log
+
+
 - job-template:
     name: '{pipeline}-tempest-dsvm-savanna-full{branch-designator}'
     node: '{node}'
@@ -1067,6 +1095,7 @@
       - '{pipeline}-grenade-dsvm-forward'
       - '{pipeline}-grenade-dsvm-neutron'
       - '{pipeline}-grenade-dsvm-neutron-forward'
+      - '{pipeline}-grenade-dsvm-partial-ncpu'
       - '{pipeline}-tempest-dsvm-savanna-full{branch-designator}'
       - '{pipeline}-tempest-dsvm-savanna-postgres{branch-designator}'
       - '{pipeline}-tempest-dsvm-savanna-neutron{branch-designator}'

modules/openstack_project/files/zuul/layout.yaml

@@ -272,6 +272,9 @@ jobs:
   - name: ^(gate|check)-grenade-dsvm-neutron$
     branch: ^(?!stable/grizzly).*$
     voting: false
+  - name: ^(gate|check)-grenade-dsvm-partial-ncpu$
+    branch: ^(?!stable/(grizzly|havana)).*$
+    voting: false
   - name: gate-tempest-python27
     branch: ^(?!stable/grizzly).*$
     # only here until stable is votable, then merge
@@ -886,6 +889,7 @@ projects:
       - check-tempest-dsvm-cells-full
       - gate-nova-pylint
       - check-tempest-dsvm-neutron-heat-slow
+      - check-grenade-dsvm-partial-ncpu
     gate:
       - gate-nova-requirements
       - gate-devstack-dsvm-cells