Bug 1492639: Only run cron bouncer checks on mozilla-beta; r=sfraser,mtabara

Differential Revision: https://phabricator.services.mozilla.com/D9137

--HG--
extra : rebase_source : beafd006b2cc29d195f2eaf7354bec21064f3ea0
extra : amend_source : 8ce35a3150ae9dbf194480ddbe96058c6cb9d395

taskcluster/ci/cron-bouncer-check/kind.yml

@@ -12,7 +12,6 @@ transforms:
 job-defaults:
     name: bouncer-check
     description: bouncer check
-    run-on-projects: []  # to make sure this never runs as part of CI
     worker-type: aws-provisioner-v1/gecko-{level}-b-linux
     worker:
         max-run-time: 1200
@@ -23,6 +22,7 @@ job-defaults:
     attributes:
         build_platform: linux64
         build_type: opt
+        cron: true
     treeherder:
         symbol: Rel(ckbouncer)
         kind: test
@@ -34,6 +34,7 @@ jobs:
         index:
             product: firefox
             job-name: firefox-bouncer-check
+        run-on-projects: [release]
         run:
             config:
                 by-project:
@@ -59,6 +60,7 @@ jobs:
 
     devedition:
         shipping-product: devedition
+        run-on-projects: [mozilla-beta]
         index:
             product: devedition
             job-name: devedition-bouncer-check

taskcluster/docs/attributes.rst

@@ -238,3 +238,8 @@ In automation, full crashsymbol package generation is normally disabled.  For
 build kinds where the full crashsymbols should be enabled, set this attribute
 to True. The full symbol packages will then be generated and uploaded on
 release branches and on try.
+
+cron
+====
+Indicates that a task is meant to be run via cron tasks, and should not be run
+on push.

taskcluster/taskgraph/target_tasks.py

@@ -28,6 +28,13 @@ def filter_out_nightly(task, parameters):
     return not task.attributes.get('nightly') or parameters.get('include_nightly')
 
 
+def filter_out_cron(task, parameters):
+    """
+    Filter out tasks that run via cron.
+    """
+    return not task.attributes.get('cron')
+
+
 def filter_for_project(task, parameters):
     """Filter tasks by project.  Optionally enable nightlies."""
     run_on_projects = set(task.attributes.get('run_on_projects', []))
@@ -91,7 +98,7 @@ def filter_beta_release_tasks(task, parameters, ignore_kinds=None, allow_l10n=Fa
 def standard_filter(task, parameters):
     return all(
         filter_func(task, parameters) for filter_func in
-        (filter_out_nightly, filter_for_project)
+        (filter_out_nightly, filter_out_cron, filter_for_project)
     )
 
 
@@ -568,6 +575,8 @@ def target_tasks_bouncer_check(full_task_graph, parameters, graph_config):
     """Select the set of tasks required to perform bouncer version verification.
     """
     def filter(task):
+        if not filter_for_project(task, parameters):
+            return False
         # For now any task in the repo-update kind is ok
         return task.kind in ['cron-bouncer-check']
     return [l for l, t in full_task_graph.tasks.iteritems() if filter(t)]