Add support for CloudBees Docker Hub Notification Plugin

Change-Id: I1653c79c3abef9afa8157f3af04ee39a3e7a804e
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>

jenkins_jobs/modules/triggers.py

@@ -617,6 +617,53 @@ def gerrit(registry, xml_parent, data):
     convert_mapping_to_xml(gtrig, data, message_mappings, fail_required=True)
 
 
+def dockerhub_notification(registry, xml_parent, data):
+    """yaml: dockerhub-notification
+    The job will get triggered when Docker Hub/Registry notifies
+    that Docker image(s) used in this job has been rebuilt.
+
+    Requires the Jenkins :jenkins-wiki:`CloudBees Docker Hub Notification
+    <CloudBees+Docker+Hub+Notification>`.
+
+    :arg bool referenced-image: Trigger the job based on repositories
+        used by any compatible docker plugin in this job. (default true)
+    :arg list repositories: Specified repositories to trigger the job.
+            (default [])
+
+    Minimal Example:
+
+    .. literalinclude::
+       /../../tests/triggers/fixtures/dockerhub-notification-minimal.yaml
+       :language: yaml
+
+    Full Example:
+
+    .. literalinclude::
+       /../../tests/triggers/fixtures/dockerhub-notification-full.yaml
+       :language: yaml
+    """
+    dockerhub = XML.SubElement(xml_parent, 'org.jenkinsci.plugins.'
+                               'registry.notification.DockerHubTrigger')
+    dockerhub.set('plugin', 'dockerhub-notification')
+
+    option = XML.SubElement(dockerhub, 'options', {'class': 'vector'})
+
+    if data.get('referenced-image'):
+        XML.SubElement(option, 'org.jenkinsci.plugins.'
+                       'registry.notification.'
+                       'opt.impl.TriggerForAllUsedInJob')
+    repos = data.get('repositories', [])
+    if repos:
+        specified_names = XML.SubElement(option,
+                                         'org.jenkinsci.plugins.registry.'
+                                         'notification.opt.impl.'
+                                         'TriggerOnSpecifiedImageNames')
+
+        repo_tag = XML.SubElement(specified_names, 'repoNames')
+        for repo in repos:
+            XML.SubElement(repo_tag, 'string').text = repo
+
+
 def pollscm(registry, xml_parent, data):
     """yaml: pollscm
     Poll the SCM to determine if there has been a change.

tests/triggers/fixtures/dockerhub-notification-full.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <triggers class="vector">
+    <org.jenkinsci.plugins.registry.notification.DockerHubTrigger plugin="dockerhub-notification">
+      <options class="vector">
+        <org.jenkinsci.plugins.registry.notification.opt.impl.TriggerForAllUsedInJob/>
+        <org.jenkinsci.plugins.registry.notification.opt.impl.TriggerOnSpecifiedImageNames>
+          <repoNames>
+            <string>repo1</string>
+            <string>repo2</string>
+          </repoNames>
+        </org.jenkinsci.plugins.registry.notification.opt.impl.TriggerOnSpecifiedImageNames>
+      </options>
+    </org.jenkinsci.plugins.registry.notification.DockerHubTrigger>
+  </triggers>
+</project>

tests/triggers/fixtures/dockerhub-notification-full.yaml

@@ -0,0 +1,6 @@
+triggers:
+  - dockerhub-notification:
+      referenced-image: true
+      repositories:
+        - repo1
+        - repo2

tests/triggers/fixtures/dockerhub-notification-minimal.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <triggers class="vector">
+    <org.jenkinsci.plugins.registry.notification.DockerHubTrigger plugin="dockerhub-notification">
+      <options class="vector"/>
+    </org.jenkinsci.plugins.registry.notification.DockerHubTrigger>
+  </triggers>
+</project>

tests/triggers/fixtures/dockerhub-notification-minimal.yaml

@@ -0,0 +1,2 @@
+triggers:
+  - dockerhub-notification