Add native Zuul v3 bindep fallback tests

For project-config itself, use native Zuul v3 tests for testing that we
can install the bindep list for the used distributions.

Note that the new job does not run if the local bindep.txt file or
other-requirements.txt is changed since those files are irreleant for
this test. This test only tests jenkins/data/bindep-fallback.txt.

Since project-config is trusted, we cannot directly test that the jobs
work. Therefore add them as experimental - and then test that they work.
A followup change will then use these jobs by default.

Change-Id: Ia95b73aa955a07840ce9b66ba36a6da821e1d34c

playbooks/bindep-fallback/run.yaml

@@ -0,0 +1,5 @@
+- hosts: all
+  roles:
+    - role: bindep
+      bindep_profile: test
+      bindep_file: jenkins/data/bindep-fallback.txt

zuul.d/jobs.yaml

@@ -1078,3 +1078,73 @@
       - openstack/requirements
     secrets:
       - zanata_api_credentials
+
+- job:
+    name: project-config-bindep-fallback
+    description: |
+      Check installation of binary packages for file
+      jenkins/data/bindep-fallback.txt.
+    run: playbooks/bindep-fallback/run.yaml
+    files:
+      - jenkins/data/bindep-fallback.txt
+      - playbooks/bindep-fallback/run.yaml
+
+- job:
+    name: project-config-bindep-fallback-centos-7
+    parent: project-config-bindep-fallback
+    description: |
+      Check installation of binary packages for file
+      jenkins/data/bindep-fallback.txt.
+
+      The testing is done for CentOS 7.
+    nodeset: centos-7
+
+- job:
+    name: project-config-bindep-fallback-fedora-26
+    parent: project-config-bindep-fallback
+    description: |
+      Check installation of binary packages for file
+      jenkins/data/bindep-fallback.txt.
+
+      The testing is done for Fedora 26.
+    nodeset: fedora-26
+
+- job:
+    name: project-config-bindep-fallback-debian-jessie
+    parent: project-config-bindep-fallback
+    description: |
+      Check installation of binary packages for file
+      jenkins/data/bindep-fallback.txt.
+
+      The testing is done for Debian Jessie.
+    nodeset: debian-jessie
+
+- job:
+    name: project-config-bindep-fallback-opensuse-423
+    parent: project-config-bindep-fallback
+    description: |
+      Check installation of binary packages for file
+      jenkins/data/bindep-fallback.txt.
+
+      The testing is done for openSUSE Leap 42.3.
+    nodeset: opensuse-423
+
+- job:
+    name: project-config-bindep-fallback-ubuntu-trusty
+    parent: project-config-bindep-fallback
+    description: |
+      Check installation of binary packages for file
+      jenkins/data/bindep-fallback.txt.
+
+      The testing is done for Ubuntu Trusty.
+    nodeset: ubuntu-trusty
+
+- job:
+    name: project-config-bindep-fallback-ubuntu-xenial
+    parent: project-config-bindep-fallback
+    description: |
+      Check installation of binary packages for file
+      jenkins/data/bindep-fallback.txt.
+
+      The testing is done for Ubuntu Xenial.
+    nodeset: ubuntu-xenial

zuul.d/projects.yaml

@@ -934,8 +934,6 @@
     name: openstack-infra/project-config
     templates:
       - system-required
-    # This is the only project that use this pipeline so that
-    # we can iterate quickly on changes.
     check:
       jobs:
         - build-openstack-specs-site
@@ -1037,6 +1035,14 @@
       jobs:
         - propose-project-config-update
         - project-config-build-openafs-centos
+    experimental:
+      jobs:
+        - project-config-bindep-fallback-centos-7
+        - project-config-bindep-fallback-debian-jessie
+        - project-config-bindep-fallback-fedora-26
+        - project-config-bindep-fallback-opensuse-423
+        - project-config-bindep-fallback-ubuntu-trusty
+        - project-config-bindep-fallback-ubuntu-xenial
 
 - project:
     name: openstack-infra/project-config-example