Merge pull request #3069 from dgageot/3068-dns-proxy-mode

VirtualBox: use dns proxy mode

docs/drivers/virtualbox.md

@@ -39,7 +39,7 @@ Options:
 -   `--virtualbox-hostonly-nictype`: Host Only Network Adapter Type. Possible values are are '82540EM' (Intel PRO/1000), 'Am79C973' (PCnet-FAST III) and 'virtio' Paravirtualized network adapter.
 -   `--virtualbox-hostonly-nicpromisc`: Host Only Network Adapter Promiscuous Mode. Possible options are deny , allow-vms, allow-all
 -   `--virtualbox-no-share`: Disable the mount of your home directory
--   `--virtualbox-dns-proxy`: Proxy all DNS requests to the host (Boolean value, default to false)
+-   `--virtualbox-no-dns-proxy`: Disable proxying all DNS requests to the host (Boolean value, default to false)
 -   `--virtualbox-no-vtx-check`: Disable checking for the availability of hardware virtualization before the vm is started
 
 The `--virtualbox-boot2docker-url` flag takes a few different forms. By
@@ -82,7 +82,7 @@ Environment variables and default values:
 | `--virtualbox-hostonly-nictype`      | `VIRTUALBOX_HOSTONLY_NIC_TYPE`     | `82540EM`                |
 | `--virtualbox-hostonly-nicpromisc`   | `VIRTUALBOX_HOSTONLY_NIC_PROMISC`  | `deny`                   |
 | `--virtualbox-no-share`              | `VIRTUALBOX_NO_SHARE`              | `false`                  |
-| `--virtualbox-dns-proxy`             | `VIRTUALBOX_DNS_PROXY`             | `false`                  |
+| `--virtualbox-no-dns-proxy`          | `VIRTUALBOX_NO_DNS_PROXY`          | `false`                  |
 | `--virtualbox-no-vtx-check`          | `VIRTUALBOX_NO_VTX_CHECK`          | `false`                  |
 
 ## Known Issues

drivers/virtualbox/virtualbox.go

@@ -29,6 +29,8 @@ const (
 	defaultHostOnlyNictype     = "82540EM"
 	defaultHostOnlyPromiscMode = "deny"
 	defaultDiskSize            = 20000
+	defaultDNSProxy            = true
+	defaultDNSResolver         = false
 )
 
 var (
@@ -79,6 +81,8 @@ func NewDriver(hostName, storePath string) *Driver {
 		HostOnlyCIDR:        defaultHostOnlyCIDR,
 		HostOnlyNicType:     defaultHostOnlyNictype,
 		HostOnlyPromiscMode: defaultHostOnlyPromiscMode,
+		DNSProxy:            defaultDNSProxy,
+		HostDNSResolver:     defaultDNSResolver,
 		BaseDriver: &drivers.BaseDriver{
 			MachineName: hostName,
 			StorePath:   storePath,
@@ -149,9 +153,9 @@ func (d *Driver) GetCreateFlags() []mcnflag.Flag {
 			EnvVar: "VIRTUALBOX_NO_SHARE",
 		},
 		mcnflag.BoolFlag{
-			Name:   "virtualbox-dns-proxy",
-			Usage:  "Proxy all DNS requests to the host",
-			EnvVar: "VIRTUALBOX_DNS_PROXY",
+			Name:   "virtualbox-no-dns-proxy",
+			Usage:  "Disable proxying all DNS requests to the host",
+			EnvVar: "VIRTUALBOX_NO_DNS_PROXY",
 		},
 		mcnflag.BoolFlag{
 			Name:   "virtualbox-no-vtx-check",
@@ -205,7 +209,7 @@ func (d *Driver) SetConfigFromFlags(flags drivers.DriverOptions) error {
 	d.HostOnlyNicType = flags.String("virtualbox-hostonly-nictype")
 	d.HostOnlyPromiscMode = flags.String("virtualbox-hostonly-nicpromisc")
 	d.NoShare = flags.Bool("virtualbox-no-share")
-	d.DNSProxy = flags.Bool("virtualbox-dns-proxy")
+	d.DNSProxy = !flags.Bool("virtualbox-no-dns-proxy")
 	d.NoVTXCheck = flags.Bool("virtualbox-no-vtx-check")
 
 	return nil

drivers/virtualbox/virtualbox_test.go

@@ -326,7 +326,7 @@ func TestCreateVM(t *testing.T) {
 		{"Generate path/machines/default/id_rsa", "", nil},
 		{"Create 20000 path/machines/default/id_rsa.pub path/machines/default/disk.vmdk", "", nil},
 		{"vbm createvm --basefolder path/machines/default --name default --register", "", nil},
-		{"vbm modifyvm default --firmware bios --bioslogofadein off --bioslogofadeout off --bioslogodisplaytime 0 --biosbootmenu disabled --ostype Linux26_64 --cpus 1 --memory 1024 --acpi on --ioapic on --rtcuseutc on --natdnshostresolver1 off --natdnsproxy1 off --cpuhotplug off --pae on --hpet on --hwvirtex on --nestedpaging on --largepages on --vtxvpid on --accelerate3d off --boot1 dvd", "", nil},
+		{"vbm modifyvm default --firmware bios --bioslogofadein off --bioslogofadeout off --bioslogodisplaytime 0 --biosbootmenu disabled --ostype Linux26_64 --cpus 1 --memory 1024 --acpi on --ioapic on --rtcuseutc on --natdnshostresolver1 off --natdnsproxy1 on --cpuhotplug off --pae on --hpet on --hwvirtex on --nestedpaging on --largepages on --vtxvpid on --accelerate3d off --boot1 dvd", "", nil},
 		{"vbm modifyvm default --nic1 nat --nictype1 82540EM --cableconnected1 on", "", nil},
 		{"vbm storagectl default --name SATA --add sata --hostiocache on", "", nil},
 		{"vbm storageattach default --storagectl SATA --port 0 --device 0 --type dvddrive --medium path/machines/default/boot2docker.iso", "", nil},