Add new gate-trove-buildimage-mysql job

Adding a new experimental job that builds the trove mysql guestagent
image using tripleo tools. Eventually the trove image elements will be
gated on this job.

Change-Id: Ie27e5f67a8aa57129f5e71b4dc18ec11119df168

modules/openstack_project/files/jenkins_job_builder/config/trove-images.yaml

@@ -0,0 +1,23 @@
+- job:
+    name: 'gate-trove-buildimage-mysql'
+    node: 'bare-precise'
+
+    builders:
+      - link-logs
+      - net-info
+      - gerrit-git-prep
+      - shell: |
+          #!/bin/bash -xe
+          export DEST=/opt/stack
+          cd scripts
+          ./redstack build-image mysql
+          mv $HOME/images/ubuntu_mysql/ubuntu_mysql.qcow2 $WORKSPACE/ubuntu_mysql.qcow2
+
+    publishers:
+      - scp:
+          site: 'tarballs.openstack.org'
+          files:
+            - source: 'ubuntu_mysql.qcow2'
+              target: 'trove/images/ubuntu_mysql.qcow2'
+              keep-hierarchy: false
+              copy-after-failure: false

modules/openstack_project/files/zuul/layout.yaml

@@ -578,6 +578,8 @@ jobs:
     voting: false
   - name: check-tripleo-ironic-undercloud-precise
     voting: false
+  - name: gate-trove-buildimage-mysql
+    voting: false
 # puppet-openstack targets
   - name: gate-puppet-vswitch-puppet-lint
     voting: false
@@ -2423,6 +2425,8 @@ projects:
       - noop
     gate:
       - noop
+    experimental:
+      - gate-trove-buildimage-mysql
 
 # TODO: add docs
   - name: openstack/tuskar-ui