Add IPA CoreOS Imagebuilder to check + gate

We currently build a new copy of the ironic-python-agent CoreOS image
post-commit. This adds the existing build process, without the upload,
as a check and gate job. This should ensure the build process is not
broken with any IPA commit.

Change-Id: Ifc6e9f52bd28e27b06105238ce8e24cc302be6bc

modules/openstack_project/files/jenkins_job_builder/config/ironic-python-agent-jobs.yaml

@@ -1,3 +1,17 @@
+- job:
+    name: 'gate-ironic-python-agent-buildimage-coreos'
+    node: 'bare-trusty'
+
+    builders:
+      - link-logs
+      - net-info
+      - gerrit-git-prep
+      - shell: |
+          imagebuild/coreos/full_trusty_build.sh
+
+    publishers:
+      - console-log
+
 - job:
     name: 'ironic-python-agent-buildimage-coreos'
     node: 'bare-trusty'

modules/openstack_project/files/zuul/layout.yaml

@@ -380,6 +380,8 @@ jobs:
   # IPA image builds need docker which requires trusty
   - name: ironic-python-agent-buildimage-coreos
     parameter-function: set_node_options_default_trusty
+  - name: gate-ironic-python-agent-buildimage-coreos
+    parameter-function: set_node_options_default_trusty
   - name: ^gate-neutron-.*$
     parameter-function: set_node_options_default_trusty
   - name: ^gate-ceilometer-.*$
@@ -2105,10 +2107,12 @@ projects:
       - gate-ironic-python-agent-pep8
       - gate-ironic-python-agent-python26
       - gate-ironic-python-agent-python27
+      - gate-ironic-python-agent-buildimage-coreos
     gate:
       - gate-ironic-python-agent-pep8
       - gate-ironic-python-agent-python26
       - gate-ironic-python-agent-python27
+      - gate-ironic-python-agent-buildimage-coreos
     post:
       - ironic-python-agent-buildimage-coreos