Use oneiric for stable/diablo.

For all python27 jobs, use oneiric slaves if the branch is
stable/diablo.  Python26 jobs are already on oneiric due to
lack of python 2.6 on anything later.

Change-Id: Id440e14721ccdd4225c5e5b170510c3c000a36b3

modules/jenkins_jobs/files/templates/python_jobs.yml

@@ -116,6 +116,12 @@ logrotate:
   artifactDaysToKeep: -1
   artifactNumToKeep: -1
 
+parameters:
+  - name: NODE_LABEL
+    description: Label of node to use for this build
+    type: label
+    default: '@NODE@'
+
 triggers:
   - zuul
 

modules/openstack_project/files/zuul/layout.yaml

@@ -53,6 +53,8 @@ jobs:
     hold-following-changes: true
   - name: gate-tempest-devstack-vm
     parameter-function: devstack_params
+  - name: ^.*-python27$
+    parameter-function: python27_params
 
 
 projects:

modules/openstack_project/files/zuul/openstack_functions.py

@@ -1,3 +1,7 @@
 def devstack_params(change, params):
     if change.branch == 'stable/diablo':
         params['NODE_LABEL'] = 'devstack-oneiric'
+
+def python27_params(change, params):
+    if change.branch == 'stable/diablo':
+        params['NODE_LABEL'] = 'oneiric'