Switch gate-neutron-dsvm-scenario job to be invoked via tempest plugin framework

Similarly to what was done in [1], this is about scenario tests.

The job did not take off in Mitaka, so add the release to the list of skipped branches.

Drop the s suffix for consistency.

[1] If5f7ea82c45494953452f728fabb7403d0b6e14e

Change-Id: I77827d2e6e07fbfb39727d823628094d730fcdd8

jenkins/jobs/devstack-gate.yaml

@@ -3069,7 +3069,7 @@
       - '{pipeline}-tempest-dsvm-neutron-identity-v3-only-full{job-suffix}'
       - '{pipeline}-tempest-dsvm-neutron-ovs-native{job-suffix}'
       - '{pipeline}-tempest-dsvm-neutron-pg-full{job-suffix}'
-      - '{pipeline}-tempest-dsvm-neutron-scenarios{job-suffix}'
+      - '{pipeline}-tempest-dsvm-neutron-scenario{job-suffix}'
       - '{pipeline}-tempest-dsvm-neutron{job-suffix}'
       - '{pipeline}-tempest-dsvm-nova-v20-api-legacy{job-suffix}'
       - '{pipeline}-tempest-dsvm-nova-v20-api{job-suffix}'

jenkins/jobs/neutron.yaml

@@ -490,7 +490,7 @@
 
 
 - job-template:
-    name: '{pipeline}-tempest-dsvm-neutron-scenarios{job-suffix}'
+    name: '{pipeline}-tempest-dsvm-neutron-scenario{job-suffix}'
     node: '{node}'
 
     wrappers:
@@ -508,27 +508,28 @@
           #!/bin/bash -xe
           export PYTHONUNBUFFERED=true
           export DEVSTACK_GATE_TEMPEST=1
-          export DEVSTACK_GATE_TEMPEST_NOTESTS=1
-          export DEVSTACK_GATE_EXERCISES=0
           export DEVSTACK_GATE_NEUTRON=1
-          export DEVSTACK_GATE_INSTALL_TESTONLY=1
+          export DEVSTACK_GATE_EXERCISES=0
           export BRANCH_OVERRIDE={branch-override}
           if [ "$BRANCH_OVERRIDE" != "default" ] ; then
               export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
           fi
+          export DEVSTACK_GATE_TEMPEST_ALL_PLUGINS=1
+          export DEVSTACK_GATE_TEMPEST_REGEX="^neutron.tests.tempest.scenario\."
 
           function gate_hook {{
-              bash -xe $BASE/new/neutron/neutron/tests/contrib/gate_hook.sh dsvm-scenarios
+              bash -xe $BASE/new/neutron/neutron/tests/contrib/gate_hook.sh dsvm-scenario
           }}
           export -f gate_hook
 
           function post_test_hook {{
-              bash -xe $BASE/new/neutron/neutron/tests/contrib/post_test_hook.sh dsvm-scenarios
+              bash -xe $BASE/new/neutron/neutron/tests/contrib/post_test_hook.sh dsvm-scenario
           }}
           export -f post_test_hook
 
           cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
           ./safe-devstack-vm-gate-wrap.sh
+
     publishers:
       - test-results
       - devstack-logs

zuul/layout.yaml

@@ -2627,8 +2627,9 @@ jobs:
   - name: gate-tempest-dsvm-neutron-full-ssh
     voting: false
 
-  - name: gate-tempest-dsvm-neutron-scenarios
-    branch: ^(?!stable/(?:kilo|liberty)).*$
+  - name: gate-tempest-dsvm-neutron-scenario
+    branch: ^(?!stable/(?:kilo|liberty|mitaka)).*$
+    voting: false
 
   - name: ^gate-.*-releasenotes$
     success-pattern: http://docs-draft.openstack.org/{build.parameters[LOG_PATH]}/releasenotes/build/html/
@@ -7696,7 +7697,7 @@ projects:
       - neutron-coverage
     experimental:
       - gate-neutron-dsvm-functional-py34
-      - gate-tempest-dsvm-neutron-scenarios
+      - gate-tempest-dsvm-neutron-scenario
       - gate-grenade-dsvm-neutron-forward
       - gate-grenade-dsvm-neutron-dvr-multinode
       - gate-neutron-vpnaas-dsvm-functional