#2059: apply suggestions from PR + adding another test that checks for dos affecting green agent

src/primaite/simulator/system/services/database/database_service.py

@@ -143,6 +143,10 @@ class DatabaseService(Service):
         status_code = 500  # Default internal server error
         if self.operating_state == ServiceOperatingState.RUNNING:
             status_code = 503  # service unavailable
+            if self.health_state_actual == SoftwareHealthState.OVERWHELMED:
+                self.sys_log.error(
+                    f"{self.name}: Connect request for {connection_id=} declined. Service is at capacity."
+                )
             if self.health_state_actual == SoftwareHealthState.GOOD:
                 if self.password == password:
                     status_code = 200  # ok

src/primaite/simulator/system/services/service.py

@@ -58,7 +58,7 @@ class Service(IOSoftware):
         if not super()._can_perform_action():
             return False
 
-        if self.operating_state is not self.operating_state.RUNNING:
+        if self.operating_state is not ServiceOperatingState.RUNNING:
             # service is not running
             _LOGGER.error(f"Cannot perform action: {self.name} is {self.operating_state.name}")
             return False