Add experimental tests of new ansible versions

This allows us to test if a development version of ansible will
break changes.

Change-Id: I96c8939dcba6206290b57bd4b8c0d229f4affda5

zuul.d/jobs.yaml

@@ -43,6 +43,14 @@
     vars:
       action: varstest
 
+# Experimental job for checking our AIO can deploy with
+# a different ansible version
+- job:
+    name: openstack-ansible-deploy_with_ansible_devel-aio-ubuntu-xenial
+    parent: openstack-ansible-deploy-aio-ubuntu-xenial
+    vars:
+      ansible_package: "git+https://github.com/ansible/ansible@devel"
+
 # ubuntu
 - job:
     name: openstack-ansible-deploy-aio-ubuntu-xenial

zuul.d/playbooks/run.yml

@@ -22,3 +22,4 @@
         # ZUUL_PROJECT is used by tests/get-ansible-role-requirements to
         # determine when CI provided repos should be used.
         ZUUL_PROJECT: "{{ zuul.project.short_name }}"
+        ANSIBLE_PACKAGE: "{{ ansible_package | default('') }}"

zuul.d/project.yaml

@@ -28,6 +28,7 @@
     experimental:
       jobs:
         - openstack-ansible-deploy-octavia-ubuntu-xenial
+        - openstack-ansible-deploy_with_ansible_devel-aio-ubuntu-xenial
     gate:
       jobs:
         - openstack-ansible-linters