zuul-web: add pipelines' manager, triggers data in status

The /api/tenant/{tenant}/status includes information about
pipelines' type (ie manager) and triggers drivers.

Change-Id: I6abe4bdcf175426908c321a2a298b9743f5ea80b

tests/unit/test_web.py

@@ -155,6 +155,8 @@ class TestWeb(BaseTestWeb):
             self.assertEqual(p["trigger_events"], 0)
             self.assertEqual(p["result_events"], 0)
             self.assertEqual(p["management_events"], 0)
+            self.assertIn('manager', p, p)
+            self.assertTrue(len(p.get('triggers', [])) > 0, p)
             for q in p['change_queues']:
                 if p['name'] in ['gate', 'conflict']:
                     self.assertEqual(q['window'], 20)

zuul/manager/dependent.py

@@ -24,6 +24,7 @@ class DependentPipelineManager(SharedQueuePipelineManager):
     reparenting algorithm for handling errors.
     """
     changes_merge = True
+    type = 'dependent'
 
     def __init__(self, *args, **kwargs):
         super(DependentPipelineManager, self).__init__(*args, **kwargs)

zuul/manager/independent.py

@@ -19,6 +19,7 @@ class IndependentPipelineManager(PipelineManager):
     """PipelineManager that puts every Change into its own ChangeQueue."""
 
     changes_merge = False
+    type = 'independent'
 
     def _postConfig(self, layout):
         super(IndependentPipelineManager, self)._postConfig(layout)

zuul/manager/serial.py

@@ -18,6 +18,7 @@ class SerialPipelineManager(SharedQueuePipelineManager):
     """PipelineManager with shared queues and a window of 1"""
 
     changes_merge = False
+    type = 'serial'
 
     def constructChangeQueue(self, queue_name):
         return model.ChangeQueue.new(

zuul/manager/supercedent.py

@@ -19,6 +19,7 @@ class SupercedentPipelineManager(PipelineManager):
     """PipelineManager with one queue per project and a window of 1"""
 
     changes_merge = False
+    type = 'supercedent'
 
     def getChangeQueue(self, change, event, existing=None):
         log = get_annotated_logger(self.log, event)

zuul/model.py

@@ -459,7 +459,11 @@ class Pipeline(object):
     def formatStatusJSON(self, websocket_url=None):
         j_pipeline = dict(name=self.name,
                           description=self.description,
-                          state=self.state.state)
+                          state=self.state.state,
+                          manager=self.manager.type)
+        j_pipeline['triggers'] = [
+            {'driver': t.driver.name} for t in self.triggers
+        ]
         j_queues = []
         j_pipeline['change_queues'] = j_queues
         for queue in self.queues: