Emit events from the PipelineRun controller

Emit events:
- Pipeline Start
- Pipeline Started Running
- Various Error Conditions, Cancel, Timeout

Emit all events through the events.go module.
Align and simplify the reconcile structure to have clear points
for error handling and emitting events.

Added test for the normal reconcile to copmletion case.
Added more event checks to existing tests.

Author: afrittoli

pkg/apis/pipeline/v1beta1/pipelinerun_types.go

@@ -239,6 +239,17 @@ func (pr *PipelineRunStatus) MarkResourceNotConvertible(err *CannotConvertError)
 	})
 }
 
+// MarkResourceFailed sets the ConditionSucceeded condition to ConditionFalse
+// based on an error that occurred and a reason
+func (pr *PipelineRunStatus) MarkResourceFailed(reason string, err error) {
+	pipelineRunCondSet.Manage(pr).SetCondition(apis.Condition{
+		Type:    apis.ConditionSucceeded,
+		Status:  corev1.ConditionFalse,
+		Reason:  reason,
+		Message: err.Error(),
+	})
+}
+
 // PipelineRunStatusFields holds the fields of PipelineRunStatus' status.
 // This is defined separately and inlined so that other types can readily
 // consume these fields via duck typing.

pkg/reconciler/pipelinerun/controller.go

@@ -69,6 +69,7 @@ func NewController(images pipeline.Images) func(context.Context, configmap.Watch
 			ConfigMapWatcher:  cmw,
 			ResyncPeriod:      resyncPeriod,
 			Logger:            logger,
+			Recorder:          controller.GetEventRecorder(ctx),
 		}
 
 		c := &Reconciler{