[scheduler]: ACLs phase 2 - warn if Job/Trigger don't have ACLs.

scheduler/appengine/catalog/catalog.go

Index: scheduler/appengine/catalog/catalog.go
diff --git a/scheduler/appengine/catalog/catalog.go b/scheduler/appengine/catalog/catalog.go
index 4f9ecb48bc31590e0434d520994beea1f84e7f8b..d140aa3fe05312c214b62bbe37bf1134bd5ae06e 100644
--- a/scheduler/appengine/catalog/catalog.go
+++ b/scheduler/appengine/catalog/catalog.go
@@ -283,6 +283,10 @@ func (cat *catalog) GetProjectJobs(c context.Context, projectID string) ([]Defin
 			logging.Errorf(c, "Failed to compute task ACLs: %s/%s: %s", projectID, id, err)
 			continue
 		}
+		// TODO(tandrii): remove this once this warning stops firing.
+		if len(acls.Owners) == 0 || len(acls.Readers) == 0 {
+			logging.Warningf(c, "Missing some ACLs on %s/%s: R=%d O=%d", projectID, id, len(acls.Owners), len(acls.Readers))
+		}
 		out = append(out, Definition{
 			JobID:       fmt.Sprintf("%s/%s", projectID, job.Id),
 			Acls:        *acls,
@@ -322,6 +326,10 @@ func (cat *catalog) GetProjectJobs(c context.Context, projectID string) ([]Defin
 			logging.Errorf(c, "Failed to compute task ACLs: %s/%s: %s", projectID, id, err)
 			continue
 		}
+		// TODO(tandrii): remove this once this warning stops firing.
+		if len(acls.Owners) == 0 || len(acls.Readers) == 0 {
+			logging.Warningf(c, "Missing some ACLs on %s/%s: R=%d O=%d", projectID, id, len(acls.Owners), len(acls.Readers))
+		}
 		out = append(out, Definition{
 			JobID:       fmt.Sprintf("%s/%s", projectID, trigger.Id),
 			Acls:        *acls,