fix vpc dns when ovn-default is dualstack (#2576)

Co-authored-by: bobz965 <1220582684@qq.com>
kubeovn · Mar 30, 2023 · a9d6622 · a9d6622
1 parent 279717c
commit a9d6622
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/pkg/controller/vpc_dns.go b/pkg/controller/vpc_dns.go
@@ -449,11 +449,15 @@ func setVpcDnsRoute(dp *v1.Deployment, subnetGw string) {
 	}
 
 	var routeCmd string
-	routeCmd = fmt.Sprintf("ip route add %s via %s dev net1;", serviceHost, subnetGw)
-	for _, nameserver := range hostNameservers {
-		routeCmd += fmt.Sprintf("ip route add %s via %s dev net1;", nameserver, subnetGw)
-	}
+	v4Gw, _ := util.SplitStringIP(subnetGw)
 
+	if v4Gw != "" {
+		routeCmd = fmt.Sprintf("ip -4 route add %s via %s dev net1;", serviceHost, v4Gw)
+		for _, nameserver := range hostNameservers {
+			routeCmd += fmt.Sprintf("ip -4 route add %s via %s dev net1;", nameserver, v4Gw)
+		}
+	}
+	// TODO:// ipv6
 	privileged := true
 	allowPrivilegeEscalation := true
 	dp.Spec.Template.Spec.InitContainers = append(dp.Spec.Template.Spec.InitContainers, corev1.Container{