Zun: switch from "job" to "job-template"

This allows us to add another pipeline in the future by using the
same template.

Change-Id: I1b74acc74210401a098cb39e3c85b1405021c920

jenkins/jobs/projects.yaml

@@ -16001,6 +16001,11 @@
       - python-jobs
       - 'gate-{name}-python35{suffix}':
           suffix: '-nv'
+      - '{pipeline}-zun-devstack-dsvm-{driver}':
+          pipeline: gate
+          node: ubuntu-xenial
+          driver: 'docker'
+          branch-override: default
 
 - project:
     name: zun-ui

jenkins/jobs/zun.yaml

@@ -1,6 +1,6 @@
-- job:
-    name: 'gate-zun-devstack-dsvm'
-    node: ubuntu-xenial
+- job-template:
+    name: '{pipeline}-zun-devstack-dsvm-{driver}'
+    node: '{node}'
 
     wrappers:
       - build-timeout:
@@ -28,17 +28,17 @@
           # Keep localrc to be able to set some vars in post_test_hook
           export KEEP_LOCALRC=1
 
-          function gate_hook {
+          function gate_hook {{
                cd /opt/stack/new/zun/
-              ./devstack/gate_hook.sh
-          }
+              ./devstack/gate_hook.sh {driver}
+          }}
           export -f gate_hook
 
-          function post_test_hook {
+          function post_test_hook {{
               source $BASE/new/devstack/accrc/admin/admin
               cd /opt/stack/new/zun/
-              ./zun/tests/contrib/post_test_hook.sh
-          }
+              ./zun/tests/contrib/post_test_hook.sh {driver}
+          }}
           export -f post_test_hook
 
           cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh

zuul/layout.yaml

@@ -2033,7 +2033,7 @@ jobs:
           - ^magnum/drivers/k8s.*$
           - ^magnum/drivers/swarm.*$
 
-  - name: gate-zun-devstack-dsvm
+  - name: ^gate-zun-devstack-dsvm.*
     skip-if:
       - project: ^openstack/zun$
         all-files-match-any:
@@ -18233,9 +18233,9 @@ projects:
       - name: python35-jobs-nv
       - name: check-requirements
     check:
-      - gate-zun-devstack-dsvm
+      - gate-zun-devstack-dsvm-docker
     gate:
-      - gate-zun-devstack-dsvm
+      - gate-zun-devstack-dsvm-docker
 
   - name: openstack/zun-ui
     template: