Rework notification of trigger service diagram

1 files changed, 7 insertions, 10 deletions

diff --git a/arch/ick2-arch.mdwn b/arch/ick2-arch.mdwn
index a9ade5a..1383fe5 100644
--- a/arch/ick2-arch.mdwn
+++ b/arch/ick2-arch.mdwn
@@ -457,20 +457,17 @@ trusty -> controller : POST /worker/trusty, exit=0 (token E)
 |||
 
 trusty -> controller : GET /worker/trusty (token E)
-controller -> trusty  : "notify trigger service pipeline is finished"
-trusty -> controller  : POST /worker/trusty, exit=0 (token E)
+controller -> trusty  : "notify trigger service pipeline is finished **successfully**"
+trusty -> trigger     : GET /pipelines/website/getsource, exit=0 (token E)
 note right
-    note that we need to tell controller this last step is finished
-    **before** telling the trigger service the pipeline is finished,
-    otherwise there is a race condition
+    No need to have the trigger service query the controller since
+    it has been told the status of pipeline by the worker.
 end note
-trusty -> trigger     : GET /pipelines/website/getsource (token E)
-trigger -> controller : GET /projects/website/pipelines/getsource (token D)
+trusty -> controller  : POST /worker/trusty, exit=0 (token E)
 note right
-    Trigger service checks
-    status of pipeline
+    If the notification to the trigger service failed,
+    this can be reported to the controller for logging.
 end note
-controller --> trigger : "pipeline is has finished successfully"
 trigger -> controller : POST /projects/website/pipelines/ikiwiki/+start (token D)
 @enduml