chore(operator/inventory): drain sigexit channel on shutdown (#194)

Signed-off-by: Artur Troian <[email protected]>

operator/inventory/nodes.go

@@ -79,7 +79,13 @@ func newClusterNodes(ctx context.Context, image, namespace string) *clusterNodes
 }
 
 func (cl *clusterNodes) Wait() error {
-	return cl.group.Wait()
+	log := fromctx.LogrFromCtx(cl.ctx).WithName("nodes")
+
+	log.Info("waiting for nodes to finish")
+	err := cl.group.Wait()
+	log.Info("all nodes finished")
+
+	return err
 }
 
 func (cl *clusterNodes) connector() error {
@@ -92,12 +98,33 @@ func (cl *clusterNodes) connector() error {
 
 	nctx, ncancel := context.WithCancel(ctx)
 	defer func() {
+		log.Info("shutting down node connectors")
+
 		ncancel()
 
+		lctx, lcancel := context.WithCancel(context.Background())
+
+		go func() {
+			for {
+				select {
+				case <-lctx.Done():
+					return
+				case <-cl.signaldone:
+				}
+			}
+		}()
+
 		for name, node := range nodes {
+			log.Info(fmt.Sprintf("shutting down node %s", name))
 			_ = node.shutdown()
 			delete(nodes, name)
+
+			log.Info(fmt.Sprintf("node %s has been shutdown", name))
 		}
+
+		lcancel()
+
+		log.Info("node connectors down")
 	}()
 
 	for {
@@ -153,6 +180,7 @@ func (cl *clusterNodes) run() error {
 
 	events := bus.Sub(topicInventoryNode)
 	defer bus.Unsub(events)
+
 	for {
 		select {
 		case <-cl.ctx.Done():