Update Sequence to expose OIDC identities of underlying Subscriptions

pkg/apis/flows/v1/sequence_lifecycle.go

@@ -81,12 +81,13 @@ func (ss *SequenceStatus) InitializeConditions() {
 // the status of the incoming subscriptions.
 func (ss *SequenceStatus) PropagateSubscriptionStatuses(subscriptions []*messagingv1.Subscription) {
 	ss.SubscriptionStatuses = make([]SequenceSubscriptionStatus, len(subscriptions))
+	ss.Auth = nil
 	allReady := true
 	// If there are no subscriptions, treat that as a False case. Could go either way, but this seems right.
 	if len(subscriptions) == 0 {
 		allReady = false
-
 	}
+
 	for i, s := range subscriptions {
 		ss.SubscriptionStatuses[i] = SequenceSubscriptionStatus{
 			Subscription: corev1.ObjectReference{
@@ -113,6 +114,13 @@ func (ss *SequenceStatus) PropagateSubscriptionStatuses(subscriptions []*messagi
 			allReady = false
 		}
 
+		if s.Status.Auth != nil && s.Status.Auth.ServiceAccountName != nil {
+			if ss.Auth == nil {
+				ss.Auth = &duckv1.AuthStatus{}
+			}
+
+			ss.Auth.ServiceAccountNames = append(ss.Auth.ServiceAccountNames, *s.Status.Auth.ServiceAccountName)
+		}
 	}
 	if allReady {
 		sCondSet.Manage(ss).MarkTrue(SequenceConditionSubscriptionsReady)