Example #1
0
func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	if _, err := controller.NetworkByName(runconfig.DefaultDaemonNetworkMode().NetworkName()); err == nil {
		return nil
	}

	netOption := map[string]string{
		winlibnetwork.NetworkName: runconfig.DefaultDaemonNetworkMode().NetworkName(),
	}

	ipamV4Conf := libnetwork.IpamConf{}
	if config.bridgeConfig.FixedCIDR == "" {
		ipamV4Conf.PreferredPool = defaultNetworkSpace
	} else {
		ipamV4Conf.PreferredPool = config.bridgeConfig.FixedCIDR
	}

	v4Conf := []*libnetwork.IpamConf{&ipamV4Conf}
	v6Conf := []*libnetwork.IpamConf{}

	_, err := controller.NewNetwork(string(runconfig.DefaultDaemonNetworkMode()), runconfig.DefaultDaemonNetworkMode().NetworkName(),
		libnetwork.NetworkOptionGeneric(options.Generic{
			netlabel.GenericData: netOption,
		}),
		libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
	)

	if err != nil {
		return fmt.Errorf("Error creating default network: %v", err)
	}
	return nil
}
Example #2
0
func TestDuplicateNetwork(t *testing.T) {
	if !netutils.IsRunningInContainer() {
		defer netutils.SetupTestNetNS(t)()
	}

	controller, err := libnetwork.New()
	if err != nil {
		t.Fatal(err)
	}

	genericOption := make(map[string]interface{})
	genericOption[netlabel.GenericData] = options.Generic{}

	err = controller.ConfigureNetworkDriver(bridgeNetType, genericOption)
	if err != nil {
		t.Fatal(err)
	}

	_, err = controller.NewNetwork(bridgeNetType, "testnetwork",
		libnetwork.NetworkOptionGeneric(genericOption))
	if err != nil {
		t.Fatal(err)
	}

	_, err = controller.NewNetwork(bridgeNetType, "testnetwork")
	if err == nil {
		t.Fatal("Expected to fail. But instead succeeded")
	}

	if _, ok := err.(libnetwork.NetworkNameError); !ok {
		t.Fatalf("Did not fail with expected error. Actual error: %v", err)
	}
}
Example #3
0
func createDefaultNetwork(c libnetwork.NetworkController) {
	nw := c.Config().Daemon.DefaultNetwork
	d := c.Config().Daemon.DefaultDriver
	createOptions := []libnetwork.NetworkOption{}
	genericOption := options.Generic{}

	if nw != "" && d != "" {
		// Bridge driver is special due to legacy reasons
		if d == "bridge" {
			genericOption[netlabel.GenericData] = map[string]string{
				"BridgeName":    "docker0",
				"DefaultBridge": "true",
			}
			createOptions = append(createOptions,
				libnetwork.NetworkOptionGeneric(genericOption),
				ipamOption(nw))
		}

		if n, err := c.NetworkByName(nw); err == nil {
			logrus.Debugf("Default network %s already present. Deleting it", nw)
			if err = n.Delete(); err != nil {
				logrus.Debugf("Network could not be deleted: %v", err)
				return
			}
		}

		_, err := c.NewNetwork(d, nw, createOptions...)
		if err != nil {
			logrus.Errorf("Error creating default network : %s : %v", nw, err)
		}
	}
}
Example #4
0
File: api.go Project: noqcks/docker
func (nc *networkCreate) parseOptions() []libnetwork.NetworkOption {
	var setFctList []libnetwork.NetworkOption

	if nc.Options != nil {
		setFctList = append(setFctList, libnetwork.NetworkOptionGeneric(nc.Options))
	}

	return setFctList
}
Example #5
0
func parseOptions(options map[string]interface{}) []libnetwork.NetworkOption {
	var setFctList []libnetwork.NetworkOption

	if options != nil {
		setFctList = append(setFctList, libnetwork.NetworkOptionGeneric(options))
	}

	return setFctList
}
Example #6
0
func createTestNetwork(networkType, networkName string, netOption options.Generic) (libnetwork.Network, error) {
	network, err := controller.NewNetwork(networkType, networkName,
		libnetwork.NetworkOptionGeneric(netOption))
	if err != nil {
		return nil, err
	}

	return network, nil
}
Example #7
0
func TestNilRemoteDriver(t *testing.T) {
	_, err := controller.NewNetwork("framerelay", "dummy",
		libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
	if err == nil {
		t.Fatal("Expected to fail. But instead succeeded")
	}

	if _, ok := err.(types.NotFoundError); !ok {
		t.Fatalf("Did not fail with expected error. Actual error: %v", err)
	}
}
Example #8
0
func TestValidRemoteDriver(t *testing.T) {
	if !netutils.IsRunningInContainer() {
		t.Skip("Skipping test when not running inside a Container")
	}

	mux := http.NewServeMux()
	server := httptest.NewServer(mux)
	if server == nil {
		t.Fatal("Failed to start a HTTP Server")
	}
	defer server.Close()

	type pluginRequest struct {
		name string
	}

	mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
		fmt.Fprintf(w, `{"Implements": ["%s"]}`, driverapi.NetworkPluginEndpointType)
	})
	mux.HandleFunc(fmt.Sprintf("/%s.CreateNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
		fmt.Fprintf(w, "null")
	})

	if err := os.MkdirAll("/usr/share/docker/plugins", 0755); err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := os.RemoveAll("/usr/share/docker/plugins"); err != nil {
			t.Fatal(err)
		}
	}()

	if err := ioutil.WriteFile("/usr/share/docker/plugins/valid-network-driver.spec", []byte(server.URL), 0644); err != nil {
		t.Fatal(err)
	}

	n, err := controller.NewNetwork("valid-network-driver", "dummy",
		libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
	if err != nil {
		// Only fail if we could not find the plugin driver
		if _, ok := err.(types.NotFoundError); ok {
			t.Fatal(err)
		}
		return
	}
	defer func() {
		if err := n.Delete(); err != nil {
			t.Fatal(err)
		}
	}()
}
// Testing IPV6 from MAC address
func TestBridgeIpv6FromMac(t *testing.T) {
	if !testutils.IsRunningInContainer() {
		defer testutils.SetupTestOSContext(t)()
	}

	netOption := options.Generic{
		netlabel.GenericData: options.Generic{
			"BridgeName":         "testipv6mac",
			"EnableICC":          true,
			"EnableIPMasquerade": true,
		},
	}
	ipamV4ConfList := []*libnetwork.IpamConf{{PreferredPool: "192.168.100.0/24", Gateway: "192.168.100.1"}}
	ipamV6ConfList := []*libnetwork.IpamConf{{PreferredPool: "fe90::/64", Gateway: "fe90::22"}}

	network, err := controller.NewNetwork(bridgeNetType, "testipv6mac", "",
		libnetwork.NetworkOptionGeneric(netOption),
		libnetwork.NetworkOptionEnableIPv6(true),
		libnetwork.NetworkOptionIpam(ipamapi.DefaultIPAM, "", ipamV4ConfList, ipamV6ConfList, nil),
		libnetwork.NetworkOptionDeferIPv6Alloc(true))
	if err != nil {
		t.Fatal(err)
	}

	mac := net.HardwareAddr{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff}
	epOption := options.Generic{netlabel.MacAddress: mac}

	ep, err := network.CreateEndpoint("testep", libnetwork.EndpointOptionGeneric(epOption))
	if err != nil {
		t.Fatal(err)
	}

	iface := ep.Info().Iface()
	if !bytes.Equal(iface.MacAddress(), mac) {
		t.Fatalf("Unexpected mac address: %v", iface.MacAddress())
	}

	ip, expIP, _ := net.ParseCIDR("fe90::aabb:ccdd:eeff/64")
	expIP.IP = ip
	if !types.CompareIPNet(expIP, iface.AddressIPv6()) {
		t.Fatalf("Expected %v. Got: %v", expIP, iface.AddressIPv6())
	}

	if err := ep.Delete(false); err != nil {
		t.Fatal(err)
	}

	if err := network.Delete(); err != nil {
		t.Fatal(err)
	}
}
Example #10
0
func TestInvalidRemoteDriver(t *testing.T) {
	if !testutils.IsRunningInContainer() {
		t.Skip("Skipping test when not running inside a Container")
	}

	mux := http.NewServeMux()
	server := httptest.NewServer(mux)
	if server == nil {
		t.Fatal("Failed to start a HTTP Server")
	}
	defer server.Close()

	type pluginRequest struct {
		name string
	}

	mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
		fmt.Fprintln(w, `{"Implements": ["InvalidDriver"]}`)
	})

	if err := os.MkdirAll("/etc/docker/plugins", 0755); err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := os.RemoveAll("/etc/docker/plugins"); err != nil {
			t.Fatal(err)
		}
	}()

	if err := ioutil.WriteFile("/etc/docker/plugins/invalid-network-driver.spec", []byte(server.URL), 0644); err != nil {
		t.Fatal(err)
	}

	ctrlr, err := libnetwork.New()
	if err != nil {
		t.Fatal(err)
	}
	defer ctrlr.Stop()

	_, err = ctrlr.NewNetwork("invalid-network-driver", "dummy",
		libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
	if err == nil {
		t.Fatal("Expected to fail. But instead succeeded")
	}

	if err != plugins.ErrNotImplements {
		t.Fatalf("Did not fail with expected error. Actual error: %v", err)
	}
}
Example #11
0
func createNetwork(controller libnetwork.NetworkController, dnet string, driver string) (libnetwork.Network, error) {
	createOptions := []libnetwork.NetworkOption{}
	genericOption := options.Generic{}

	// Bridge driver is special due to legacy reasons
	if runconfig.NetworkMode(driver).IsBridge() {
		genericOption[netlabel.GenericData] = map[string]string{
			bridge.BridgeName: dnet,
		}
		networkOption := libnetwork.NetworkOptionGeneric(genericOption)
		createOptions = append(createOptions, networkOption)
	}

	return controller.NewNetwork(driver, dnet, createOptions...)
}
Example #12
0
func TestNilRemoteDriver(t *testing.T) {
	controller, err := libnetwork.New()
	if err != nil {
		t.Fatal(err)
	}

	_, err = controller.NewNetwork("framerelay", "dummy",
		libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
	if err == nil {
		t.Fatal("Expected to fail. But instead succeeded")
	}

	if err != plugins.ErrNotFound {
		t.Fatalf("Did not fail with expected error. Actual error: %v", err)
	}
}
Example #13
0
func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	if _, err := controller.NetworkByName(runconfig.DefaultDaemonNetworkMode().NetworkName()); err == nil {
		return nil
	}

	netOption := map[string]string{
		winlibnetwork.NetworkName: runconfig.DefaultDaemonNetworkMode().NetworkName(),
	}

	var ipamOption libnetwork.NetworkOption
	var subnetPrefix string

	if config.bridgeConfig.FixedCIDR != "" {
		subnetPrefix = config.bridgeConfig.FixedCIDR
	} else {
		// TP5 doesn't support properly detecting subnet
		osv := system.GetOSVersion()
		if osv.Build < 14360 {
			subnetPrefix = defaultNetworkSpace
		}
	}

	if subnetPrefix != "" {
		ipamV4Conf := libnetwork.IpamConf{}
		ipamV4Conf.PreferredPool = subnetPrefix
		v4Conf := []*libnetwork.IpamConf{&ipamV4Conf}
		v6Conf := []*libnetwork.IpamConf{}
		ipamOption = libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil)
	}

	_, err := controller.NewNetwork(string(runconfig.DefaultDaemonNetworkMode()), runconfig.DefaultDaemonNetworkMode().NetworkName(), "",
		libnetwork.NetworkOptionGeneric(options.Generic{
			netlabel.GenericData: netOption,
		}),
		ipamOption,
	)

	if err != nil {
		return fmt.Errorf("Error creating default network: %v", err)
	}

	return nil
}
Example #14
0
func createTestNetwork(networkType, networkName string, option options.Generic, netOption options.Generic) (libnetwork.Network, error) {
	controller, err := libnetwork.New()
	if err != nil {
		return nil, err
	}
	genericOption := make(map[string]interface{})
	genericOption[netlabel.GenericData] = option

	err = controller.ConfigureNetworkDriver(networkType, genericOption)
	if err != nil {
		return nil, err
	}

	network, err := controller.NewNetwork(networkType, networkName,
		libnetwork.NetworkOptionGeneric(netOption))
	if err != nil {
		return nil, err
	}

	return network, nil
}
Example #15
0
func createDefaultNetwork(c libnetwork.NetworkController) {
	nw := c.Config().Daemon.DefaultNetwork
	d := c.Config().Daemon.DefaultDriver
	createOptions := []libnetwork.NetworkOption{}
	genericOption := options.Generic{}

	if nw != "" && d != "" {
		// Bridge driver is special due to legacy reasons
		if d == "bridge" {
			genericOption[netlabel.GenericData] = map[string]interface{}{
				"BridgeName": nw,
			}
			networkOption := libnetwork.NetworkOptionGeneric(genericOption)
			createOptions = append(createOptions, networkOption)
		}
		_, err := c.NewNetwork(d, nw, createOptions...)
		if err != nil {
			logrus.Errorf("Error creating default network : %s : %v", nw, err)
		}
	}
}
Example #16
0
func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	option := options.Generic{
		"EnableIPForwarding":  config.Bridge.EnableIPForward,
		"EnableIPTables":      config.Bridge.EnableIPTables,
		"EnableUserlandProxy": config.Bridge.EnableUserlandProxy}

	if err := controller.ConfigureNetworkDriver("bridge", options.Generic{netlabel.GenericData: option}); err != nil {
		return fmt.Errorf("Error initializing bridge driver: %v", err)
	}

	netOption := options.Generic{
		"BridgeName":         config.Bridge.Iface,
		"Mtu":                config.Mtu,
		"EnableIPMasquerade": config.Bridge.EnableIPMasq,
		"EnableICC":          config.Bridge.InterContainerCommunication,
	}

	if config.Bridge.IP != "" {
		ip, bipNet, err := net.ParseCIDR(config.Bridge.IP)
		if err != nil {
			return err
		}

		bipNet.IP = ip
		netOption["AddressIPv4"] = bipNet
	}

	if config.Bridge.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.Bridge.FixedCIDR)
		if err != nil {
			return err
		}

		netOption["FixedCIDR"] = fCIDR
	}

	if config.Bridge.FixedCIDRv6 != "" {
		_, fCIDRv6, err := net.ParseCIDR(config.Bridge.FixedCIDRv6)
		if err != nil {
			return err
		}

		netOption["FixedCIDRv6"] = fCIDRv6
	}

	if config.Bridge.DefaultGatewayIPv4 != nil {
		netOption["DefaultGatewayIPv4"] = config.Bridge.DefaultGatewayIPv4
	}

	if config.Bridge.DefaultGatewayIPv6 != nil {
		netOption["DefaultGatewayIPv6"] = config.Bridge.DefaultGatewayIPv6
	}

	// --ip processing
	if config.Bridge.DefaultIP != nil {
		netOption["DefaultBindingIP"] = config.Bridge.DefaultIP
	}

	// Initialize default network on "bridge" with the same name
	_, err := controller.NewNetwork("bridge", "bridge",
		libnetwork.NetworkOptionGeneric(options.Generic{
			netlabel.GenericData: netOption,
			netlabel.EnableIPv6:  config.Bridge.EnableIPv6,
		}))
	if err != nil {
		return fmt.Errorf("Error creating default \"bridge\" network: %v", err)
	}
	return nil
}
Example #17
0
func (daemon *Daemon) initNetworkController(config *Config, activeSandboxes map[string]interface{}) (libnetwork.NetworkController, error) {
	netOptions, err := daemon.networkOptions(config, nil, nil)
	if err != nil {
		return nil, err
	}
	controller, err := libnetwork.New(netOptions...)
	if err != nil {
		return nil, fmt.Errorf("error obtaining controller instance: %v", err)
	}

	hnsresponse, err := hcsshim.HNSListNetworkRequest("GET", "", "")
	if err != nil {
		return nil, err
	}

	// Remove networks not present in HNS
	for _, v := range controller.Networks() {
		options := v.Info().DriverOptions()
		hnsid := options[winlibnetwork.HNSID]
		found := false

		for _, v := range hnsresponse {
			if v.Id == hnsid {
				found = true
				break
			}
		}

		if !found {
			// global networks should not be deleted by local HNS
			if v.Info().Scope() != datastore.GlobalScope {
				err = v.Delete()
				if err != nil {
					logrus.Errorf("Error occurred when removing network %v", err)
				}
			}
		}
	}

	_, err = controller.NewNetwork("null", "none", "", libnetwork.NetworkOptionPersist(false))
	if err != nil {
		return nil, err
	}

	defaultNetworkExists := false

	if network, err := controller.NetworkByName(runconfig.DefaultDaemonNetworkMode().NetworkName()); err == nil {
		options := network.Info().DriverOptions()
		for _, v := range hnsresponse {
			if options[winlibnetwork.HNSID] == v.Id {
				defaultNetworkExists = true
				break
			}
		}
	}

	// discover and add HNS networks to windows
	// network that exist are removed and added again
	for _, v := range hnsresponse {
		var n libnetwork.Network
		s := func(current libnetwork.Network) bool {
			options := current.Info().DriverOptions()
			if options[winlibnetwork.HNSID] == v.Id {
				n = current
				return true
			}
			return false
		}

		controller.WalkNetworks(s)
		if n != nil {
			// global networks should not be deleted by local HNS
			if n.Info().Scope() == datastore.GlobalScope {
				continue
			}
			v.Name = n.Name()
			// This will not cause network delete from HNS as the network
			// is not yet populated in the libnetwork windows driver
			n.Delete()
		}

		netOption := map[string]string{
			winlibnetwork.NetworkName: v.Name,
			winlibnetwork.HNSID:       v.Id,
		}

		v4Conf := []*libnetwork.IpamConf{}
		for _, subnet := range v.Subnets {
			ipamV4Conf := libnetwork.IpamConf{}
			ipamV4Conf.PreferredPool = subnet.AddressPrefix
			ipamV4Conf.Gateway = subnet.GatewayAddress
			v4Conf = append(v4Conf, &ipamV4Conf)
		}

		name := v.Name

		// If there is no nat network create one from the first NAT network
		// encountered
		if !defaultNetworkExists && runconfig.DefaultDaemonNetworkMode() == containertypes.NetworkMode(strings.ToLower(v.Type)) {
			name = runconfig.DefaultDaemonNetworkMode().NetworkName()
			defaultNetworkExists = true
		}

		v6Conf := []*libnetwork.IpamConf{}
		_, err := controller.NewNetwork(strings.ToLower(v.Type), name, "",
			libnetwork.NetworkOptionGeneric(options.Generic{
				netlabel.GenericData: netOption,
			}),
			libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
		)

		if err != nil {
			logrus.Errorf("Error occurred when creating network %v", err)
		}
	}

	if !config.DisableBridge {
		// Initialize default driver "bridge"
		if err := initBridgeDriver(controller, config); err != nil {
			return nil, err
		}
	}

	return controller, nil
}
Example #18
0
func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	if n, err := controller.NetworkByName("bridge"); err == nil {
		if err = n.Delete(); err != nil {
			return fmt.Errorf("could not delete the default bridge network: %v", err)
		}
	}

	bridgeName := bridge.DefaultBridgeName
	if config.Bridge.Iface != "" {
		bridgeName = config.Bridge.Iface
	}
	netOption := map[string]string{
		bridge.BridgeName:         bridgeName,
		bridge.DefaultBridge:      strconv.FormatBool(true),
		netlabel.DriverMTU:        strconv.Itoa(config.Mtu),
		bridge.EnableIPMasquerade: strconv.FormatBool(config.Bridge.EnableIPMasq),
		bridge.EnableICC:          strconv.FormatBool(config.Bridge.InterContainerCommunication),
	}

	// --ip processing
	if config.Bridge.DefaultIP != nil {
		netOption[bridge.DefaultBindingIP] = config.Bridge.DefaultIP.String()
	}

	ipamV4Conf := libnetwork.IpamConf{}

	ipamV4Conf.AuxAddresses = make(map[string]string)

	if nw, _, err := ipamutils.ElectInterfaceAddresses(bridgeName); err == nil {
		ipamV4Conf.PreferredPool = nw.String()
		hip, _ := types.GetHostPartIP(nw.IP, nw.Mask)
		if hip.IsGlobalUnicast() {
			ipamV4Conf.Gateway = nw.IP.String()
		}
	}

	if config.Bridge.IP != "" {
		ipamV4Conf.PreferredPool = config.Bridge.IP
		ip, _, err := net.ParseCIDR(config.Bridge.IP)
		if err != nil {
			return err
		}
		ipamV4Conf.Gateway = ip.String()
	} else if bridgeName == bridge.DefaultBridgeName && ipamV4Conf.PreferredPool != "" {
		logrus.Infof("Default bridge (%s) is assigned with an IP address %s. Daemon option --bip can be used to set a preferred IP address", bridgeName, ipamV4Conf.PreferredPool)
	}

	if config.Bridge.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.Bridge.FixedCIDR)
		if err != nil {
			return err
		}

		ipamV4Conf.SubPool = fCIDR.String()
	}

	if config.Bridge.DefaultGatewayIPv4 != nil {
		ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.Bridge.DefaultGatewayIPv4.String()
	}

	var (
		ipamV6Conf     *libnetwork.IpamConf
		deferIPv6Alloc bool
	)
	if config.Bridge.FixedCIDRv6 != "" {
		_, fCIDRv6, err := net.ParseCIDR(config.Bridge.FixedCIDRv6)
		if err != nil {
			return err
		}

		// In case user has specified the daemon flag --fixed-cidr-v6 and the passed network has
		// at least 48 host bits, we need to guarantee the current behavior where the containers'
		// IPv6 addresses will be constructed based on the containers' interface MAC address.
		// We do so by telling libnetwork to defer the IPv6 address allocation for the endpoints
		// on this network until after the driver has created the endpoint and returned the
		// constructed address. Libnetwork will then reserve this address with the ipam driver.
		ones, _ := fCIDRv6.Mask.Size()
		deferIPv6Alloc = ones <= 80

		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}
		}
		ipamV6Conf.PreferredPool = fCIDRv6.String()
	}

	if config.Bridge.DefaultGatewayIPv6 != nil {
		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}
		}
		ipamV6Conf.AuxAddresses["DefaultGatewayIPv6"] = config.Bridge.DefaultGatewayIPv6.String()
	}

	v4Conf := []*libnetwork.IpamConf{&ipamV4Conf}
	v6Conf := []*libnetwork.IpamConf{}
	if ipamV6Conf != nil {
		v6Conf = append(v6Conf, ipamV6Conf)
	}
	// Initialize default network on "bridge" with the same name
	_, err := controller.NewNetwork("bridge", "bridge",
		libnetwork.NetworkOptionGeneric(options.Generic{
			netlabel.GenericData: netOption,
			netlabel.EnableIPv6:  config.Bridge.EnableIPv6,
		}),
		libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
		libnetwork.NetworkOptionDeferIPv6Alloc(deferIPv6Alloc))
	if err != nil {
		return fmt.Errorf("Error creating default \"bridge\" network: %v", err)
	}
	return nil
}
Example #19
0
func initNetworkController(config *Config) (libnetwork.NetworkController, error) {
	controller, err := libnetwork.New()
	if err != nil {
		return nil, fmt.Errorf("error obtaining controller instance: %v", err)
	}

	// Initialize default driver "null"

	if err := controller.ConfigureNetworkDriver("null", options.Generic{}); err != nil {
		return nil, fmt.Errorf("Error initializing null driver: %v", err)
	}

	// Initialize default network on "null"
	if _, err := controller.NewNetwork("null", "none"); err != nil {
		return nil, fmt.Errorf("Error creating default \"null\" network: %v", err)
	}

	// Initialize default driver "host"
	if err := controller.ConfigureNetworkDriver("host", options.Generic{}); err != nil {
		return nil, fmt.Errorf("Error initializing host driver: %v", err)
	}

	// Initialize default network on "host"
	if _, err := controller.NewNetwork("host", "host"); err != nil {
		return nil, fmt.Errorf("Error creating default \"host\" network: %v", err)
	}

	// Initialize default driver "bridge"
	option := options.Generic{
		"EnableIPForwarding": config.Bridge.EnableIPForward}

	if err := controller.ConfigureNetworkDriver("bridge", options.Generic{netlabel.GenericData: option}); err != nil {
		return nil, fmt.Errorf("Error initializing bridge driver: %v", err)
	}

	netOption := options.Generic{
		"BridgeName":          config.Bridge.Iface,
		"Mtu":                 config.Mtu,
		"EnableIPTables":      config.Bridge.EnableIPTables,
		"EnableIPMasquerade":  config.Bridge.EnableIPMasq,
		"EnableICC":           config.Bridge.InterContainerCommunication,
		"EnableUserlandProxy": config.Bridge.EnableUserlandProxy,
	}

	if config.Bridge.IP != "" {
		ip, bipNet, err := net.ParseCIDR(config.Bridge.IP)
		if err != nil {
			return nil, err
		}

		bipNet.IP = ip
		netOption["AddressIPv4"] = bipNet
	}

	if config.Bridge.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.Bridge.FixedCIDR)
		if err != nil {
			return nil, err
		}

		netOption["FixedCIDR"] = fCIDR
	}

	if config.Bridge.FixedCIDRv6 != "" {
		_, fCIDRv6, err := net.ParseCIDR(config.Bridge.FixedCIDRv6)
		if err != nil {
			return nil, err
		}

		netOption["FixedCIDRv6"] = fCIDRv6
	}

	// --ip processing
	if config.Bridge.DefaultIP != nil {
		netOption["DefaultBindingIP"] = config.Bridge.DefaultIP
	}

	// Initialize default network on "bridge" with the same name
	_, err = controller.NewNetwork("bridge", "bridge",
		libnetwork.NetworkOptionGeneric(options.Generic{
			netlabel.GenericData: netOption,
			netlabel.EnableIPv6:  config.Bridge.EnableIPv6,
		}))
	if err != nil {
		return nil, fmt.Errorf("Error creating default \"bridge\" network: %v", err)
	}

	return controller, nil
}
Example #20
0
func (daemon *Daemon) initNetworkController(config *Config) (libnetwork.NetworkController, error) {
	netOptions, err := daemon.networkOptions(config)
	if err != nil {
		return nil, err
	}
	controller, err := libnetwork.New(netOptions...)
	if err != nil {
		return nil, fmt.Errorf("error obtaining controller instance: %v", err)
	}

	hnsresponse, err := hcsshim.HNSListNetworkRequest("GET", "", "")
	if err != nil {
		return nil, err
	}

	// Remove networks not present in HNS
	for _, v := range controller.Networks() {
		options := v.Info().DriverOptions()
		hnsid := options[winlibnetwork.HNSID]
		found := false

		for _, v := range hnsresponse {
			if v.Id == hnsid {
				found = true
				break
			}
		}

		if !found {
			err = v.Delete()
			if err != nil {
				return nil, err
			}
		}
	}

	_, err = controller.NewNetwork("null", "none", libnetwork.NetworkOptionPersist(false))
	if err != nil {
		return nil, err
	}

	// discover and add HNS networks to windows
	// network that exist are removed and added again
	for _, v := range hnsresponse {
		var n libnetwork.Network
		s := func(current libnetwork.Network) bool {
			options := current.Info().DriverOptions()
			if options[winlibnetwork.HNSID] == v.Id {
				n = current
				return true
			}
			return false
		}

		controller.WalkNetworks(s)
		if n != nil {
			v.Name = n.Name()
			n.Delete()
		}

		netOption := map[string]string{
			winlibnetwork.NetworkName: v.Name,
			winlibnetwork.HNSID:       v.Id,
		}

		v4Conf := []*libnetwork.IpamConf{}
		for _, subnet := range v.Subnets {
			ipamV4Conf := libnetwork.IpamConf{}
			ipamV4Conf.PreferredPool = subnet.AddressPrefix
			ipamV4Conf.Gateway = subnet.GatewayAddress
			v4Conf = append(v4Conf, &ipamV4Conf)
		}

		name := v.Name
		// There is only one nat network supported in windows.
		// If it exists with a different name add it as the default name
		if runconfig.DefaultDaemonNetworkMode() == containertypes.NetworkMode(strings.ToLower(v.Type)) {
			name = runconfig.DefaultDaemonNetworkMode().NetworkName()
		}

		v6Conf := []*libnetwork.IpamConf{}
		_, err := controller.NewNetwork(strings.ToLower(v.Type), name,
			libnetwork.NetworkOptionGeneric(options.Generic{
				netlabel.GenericData: netOption,
			}),
			libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
		)

		if err != nil {
			logrus.Errorf("Error occurred when creating network %v", err)
		}
	}

	if !config.DisableBridge {
		// Initialize default driver "bridge"
		if err := initBridgeDriver(controller, config); err != nil {
			return nil, err
		}
	}

	return controller, nil
}
Example #21
0
func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	if n, err := controller.NetworkByName("bridge"); err == nil {
		if err = n.Delete(); err != nil {
			return fmt.Errorf("could not delete the default bridge network: %v", err)
		}
	}

	bridgeName := bridge.DefaultBridgeName
	if config.Bridge.Iface != "" {
		bridgeName = config.Bridge.Iface
	}
	netOption := map[string]string{
		bridge.BridgeName:         bridgeName,
		bridge.DefaultBridge:      strconv.FormatBool(true),
		netlabel.DriverMTU:        strconv.Itoa(config.Mtu),
		bridge.EnableIPMasquerade: strconv.FormatBool(config.Bridge.EnableIPMasq),
		bridge.EnableICC:          strconv.FormatBool(config.Bridge.InterContainerCommunication),
	}

	// --ip processing
	if config.Bridge.DefaultIP != nil {
		netOption[bridge.DefaultBindingIP] = config.Bridge.DefaultIP.String()
	}

	ipamV4Conf := libnetwork.IpamConf{}

	ipamV4Conf.AuxAddresses = make(map[string]string)

	if nw, _, err := ipamutils.ElectInterfaceAddresses(bridgeName); err == nil {
		ipamV4Conf.PreferredPool = nw.String()
		hip, _ := types.GetHostPartIP(nw.IP, nw.Mask)
		if hip.IsGlobalUnicast() {
			ipamV4Conf.Gateway = nw.IP.String()
		}
	}

	if config.Bridge.IP != "" {
		ipamV4Conf.PreferredPool = config.Bridge.IP
		ip, _, err := net.ParseCIDR(config.Bridge.IP)
		if err != nil {
			return err
		}
		ipamV4Conf.Gateway = ip.String()
	}

	if config.Bridge.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.Bridge.FixedCIDR)
		if err != nil {
			return err
		}

		ipamV4Conf.SubPool = fCIDR.String()
	}

	if config.Bridge.DefaultGatewayIPv4 != nil {
		ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.Bridge.DefaultGatewayIPv4.String()
	}

	var ipamV6Conf *libnetwork.IpamConf
	if config.Bridge.FixedCIDRv6 != "" {
		_, fCIDRv6, err := net.ParseCIDR(config.Bridge.FixedCIDRv6)
		if err != nil {
			return err
		}
		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{}
		}
		ipamV6Conf.PreferredPool = fCIDRv6.String()
	}

	if config.Bridge.DefaultGatewayIPv6 != nil {
		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{}
		}
		ipamV6Conf.AuxAddresses["DefaultGatewayIPv6"] = config.Bridge.DefaultGatewayIPv6.String()
	}

	v4Conf := []*libnetwork.IpamConf{&ipamV4Conf}
	v6Conf := []*libnetwork.IpamConf{}
	if ipamV6Conf != nil {
		v6Conf = append(v6Conf, ipamV6Conf)
	}
	// Initialize default network on "bridge" with the same name
	_, err := controller.NewNetwork("bridge", "bridge",
		libnetwork.NetworkOptionGeneric(options.Generic{
			netlabel.GenericData: netOption,
			netlabel.EnableIPv6:  config.Bridge.EnableIPv6,
		}),
		libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf))
	if err != nil {
		return fmt.Errorf("Error creating default \"bridge\" network: %v", err)
	}
	return nil
}
func TestEndpointJoin(t *testing.T) {
	if !testutils.IsRunningInContainer() {
		defer testutils.SetupTestOSContext(t)()
	}

	// Create network 1 and add 2 endpoint: ep11, ep12
	netOption := options.Generic{
		netlabel.GenericData: options.Generic{
			"BridgeName":         "testnetwork1",
			"EnableICC":          true,
			"EnableIPMasquerade": true,
		},
	}
	ipamV6ConfList := []*libnetwork.IpamConf{{PreferredPool: "fe90::/64", Gateway: "fe90::22"}}
	n1, err := controller.NewNetwork(bridgeNetType, "testnetwork1", "",
		libnetwork.NetworkOptionGeneric(netOption),
		libnetwork.NetworkOptionEnableIPv6(true),
		libnetwork.NetworkOptionIpam(ipamapi.DefaultIPAM, "", nil, ipamV6ConfList, nil),
		libnetwork.NetworkOptionDeferIPv6Alloc(true))
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := n1.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	ep1, err := n1.CreateEndpoint("ep1")
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := ep1.Delete(false); err != nil {
			t.Fatal(err)
		}
	}()

	// Validate if ep.Info() only gives me IP address info and not names and gateway during CreateEndpoint()
	info := ep1.Info()
	iface := info.Iface()
	if iface.Address() != nil && iface.Address().IP.To4() == nil {
		t.Fatalf("Invalid IP address returned: %v", iface.Address())
	}
	if iface.AddressIPv6() != nil && iface.AddressIPv6().IP == nil {
		t.Fatalf("Invalid IPv6 address returned: %v", iface.Address())
	}

	if len(info.Gateway()) != 0 {
		t.Fatalf("Expected empty gateway for an empty endpoint. Instead found a gateway: %v", info.Gateway())
	}
	if len(info.GatewayIPv6()) != 0 {
		t.Fatalf("Expected empty gateway for an empty ipv6 endpoint. Instead found a gateway: %v", info.GatewayIPv6())
	}

	if info.Sandbox() != nil {
		t.Fatalf("Expected an empty sandbox key for an empty endpoint. Instead found a non-empty sandbox key: %s", info.Sandbox().Key())
	}

	// test invalid joins
	err = ep1.Join(nil)
	if err == nil {
		t.Fatalf("Expected to fail join with nil Sandbox")
	}
	if _, ok := err.(types.BadRequestError); !ok {
		t.Fatalf("Unexpected error type returned: %T", err)
	}

	fsbx := &fakeSandbox{}
	if err = ep1.Join(fsbx); err == nil {
		t.Fatalf("Expected to fail join with invalid Sandbox")
	}
	if _, ok := err.(types.BadRequestError); !ok {
		t.Fatalf("Unexpected error type returned: %T", err)
	}

	sb, err := controller.NewSandbox(containerID,
		libnetwork.OptionHostname("test"),
		libnetwork.OptionDomainname("docker.io"),
		libnetwork.OptionExtraHost("web", "192.168.0.1"))
	if err != nil {
		t.Fatal(err)
	}

	defer func() {
		if err := sb.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	err = ep1.Join(sb)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		err = ep1.Leave(sb)
		if err != nil {
			t.Fatal(err)
		}
	}()

	// Validate if ep.Info() only gives valid gateway and sandbox key after has container has joined.
	info = ep1.Info()
	if len(info.Gateway()) == 0 {
		t.Fatalf("Expected a valid gateway for a joined endpoint. Instead found an invalid gateway: %v", info.Gateway())
	}
	if len(info.GatewayIPv6()) == 0 {
		t.Fatalf("Expected a valid ipv6 gateway for a joined endpoint. Instead found an invalid gateway: %v", info.GatewayIPv6())
	}

	if info.Sandbox() == nil {
		t.Fatalf("Expected an non-empty sandbox key for a joined endpoint. Instead found a empty sandbox key")
	}

	// Check endpoint provided container information
	if ep1.Info().Sandbox().Key() != sb.Key() {
		t.Fatalf("Endpoint Info returned unexpected sandbox key: %s", sb.Key())
	}

	// Attempt retrieval of endpoint interfaces statistics
	stats, err := sb.Statistics()
	if err != nil {
		t.Fatal(err)
	}
	if _, ok := stats["eth0"]; !ok {
		t.Fatalf("Did not find eth0 statistics")
	}

	// Now test the container joining another network
	n2, err := createTestNetwork(bridgeNetType, "testnetwork2",
		options.Generic{
			netlabel.GenericData: options.Generic{
				"BridgeName": "testnetwork2",
			},
		}, nil, nil)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := n2.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	ep2, err := n2.CreateEndpoint("ep2")
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := ep2.Delete(false); err != nil {
			t.Fatal(err)
		}
	}()

	err = ep2.Join(sb)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		err = ep2.Leave(sb)
		if err != nil {
			t.Fatal(err)
		}
	}()

	if ep1.Info().Sandbox().Key() != ep2.Info().Sandbox().Key() {
		t.Fatalf("ep1 and ep2 returned different container sandbox key")
	}

	checkSandbox(t, info)
}
Example #23
0
func createTestNetwork(networkType, networkName string, netOption options.Generic, ipamV4Configs, ipamV6Configs []*libnetwork.IpamConf) (libnetwork.Network, error) {
	return controller.NewNetwork(networkType, networkName,
		libnetwork.NetworkOptionGeneric(netOption),
		libnetwork.NetworkOptionIpam(ipamapi.DefaultIPAM, "", ipamV4Configs, ipamV6Configs))
}