Make virtualbox DNS settings configurable

cmd/minikube/cmd/start.go

@@ -98,6 +98,8 @@ const (
 	embedCerts            = "embed-certs"
 	noVTXCheck            = "no-vtx-check"
 	downloadOnly          = "download-only"
+	dnsProxy              = "dns-proxy"
+	hostDNSResolver       = "host-dns-resolver"
 )
 
 var (
@@ -158,6 +160,8 @@ func init() {
 	startCmd.Flags().Bool(gpu, false, "Enable experimental NVIDIA GPU support in minikube (works only with kvm2 driver on Linux)")
 	startCmd.Flags().Bool(hidden, false, "Hide the hypervisor signature from the guest in minikube (works only with kvm2 driver on Linux)")
 	startCmd.Flags().Bool(noVTXCheck, false, "Disable checking for the availability of hardware virtualization before the vm is started (virtualbox)")
+	startCmd.Flags().Bool(dnsProxy, false, "Enable proxy for NAT DNS requests (virtualbox)")
+	startCmd.Flags().Bool(hostDNSResolver, true, "Enable host resolver for NAT DNS requests (virtualbox)")
 	if err := viper.BindPFlags(startCmd.Flags()); err != nil {
 		exit.WithError("unable to bind flags", err)
 	}
@@ -530,6 +534,8 @@ func generateConfig(cmd *cobra.Command, k8sVersion string) (cfg.Config, error) {
 			GPU:                 viper.GetBool(gpu),
 			Hidden:              viper.GetBool(hidden),
 			NoVTXCheck:          viper.GetBool(noVTXCheck),
+			DNSProxy:            viper.GetBool(dnsProxy),
+			HostDNSResolver:     viper.GetBool(hostDNSResolver),
 		},
 		KubernetesConfig: cfg.KubernetesConfig{
 			KubernetesVersion:      k8sVersion,

pkg/minikube/config/types.go

@@ -56,6 +56,8 @@ type MachineConfig struct {
 	GPU                 bool   // Only used by kvm2
 	Hidden              bool   // Only used by kvm2
 	NoVTXCheck          bool   // Only used by virtualbox
+	DNSProxy            bool   // Only used by virtualbox
+	HostDNSResolver     bool   // Only used by virtualbox
 }
 
 // KubernetesConfig contains the parameters used to configure the VM Kubernetes.

pkg/minikube/drivers/virtualbox/driver.go

@@ -54,8 +54,8 @@ func createVirtualboxHost(config cfg.MachineConfig) interface{} {
 	d.NoVTXCheck = config.NoVTXCheck
 	d.NatNicType = defaultVirtualboxNicType
 	d.HostOnlyNicType = defaultVirtualboxNicType
-	d.DNSProxy = false
-	d.HostDNSResolver = true
+	d.DNSProxy = config.DNSProxy
+	d.HostDNSResolver = config.HostDNSResolver
 
 	return d
 }