fix: filter out SideroLink address from Machine addresses

This address is only useful within the context of the Sidero pod, and
e.g. control plane provider can't talk over it, so excluding the address
helps to avoid additional failures in the CP provider.

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>

app/sidero-controller-manager/cmd/events-manager/adapter.go

@@ -89,8 +89,22 @@ func (a *Adapter) HandleEvent(ctx context.Context, event events.Event) error {
 	case *machine.AddressEvent:
 		fields = append(fields, zap.String("hostname", event.GetHostname()), zap.String("addresses", strings.Join(event.GetAddresses(), ",")))
 
+		// filter out SideroLink address from the list
+		addresses := event.Addresses
+
+		n := 0
+
+		for _, addr := range addresses {
+			if addr != ip {
+				addresses[n] = addr
+				n++
+			}
+		}
+
+		addresses = addresses[:n]
+
 		err = a.patchServerBinding(ctx, ip, func(serverbinding *sidero.ServerBinding) {
-			serverbinding.Spec.Addresses = event.Addresses
+			serverbinding.Spec.Addresses = addresses
 			serverbinding.Spec.Hostname = event.Hostname
 		})