feat(region,host-deployer): ipv6 only guest support (#22897)

pkg/scheduler/algorithm/predicates/error.go

@@ -23,6 +23,7 @@ const (
 	ErrServerTypeIsNotMatch = `server type is not match`
 	ErrExitIsNotMatch       = `exit is not match`
 	ErrWireIsNotMatch       = `wire is not match`
+	ErrNotSupportIpv6       = `not support ipv6`
 
 	ErrNoPorts               = `no ports`
 	ErrNotOwner              = `not owner`

pkg/scheduler/algorithm/predicates/network_predicate.go

@@ -186,6 +186,12 @@ func IsNetworkAvailable(
 	exit := req.Exit
 	wire := req.Wire
 
+	if req.RequireIPv6 && !n.IsSupportIPv6() {
+		return FailReason{
+			Reason: fmt.Sprintf("%v(%v): %s", n.Name, n.Id, ErrNotSupportIpv6),
+		}
+	}
+
 	isMatchServerType := func(network *models.SNetwork) bool {
 		return computeapi.IsInNetworkTypes(network.ServerType, netTypes)
 	}