Golang Network.ID方法代码示例

func buildNetworkResource(nw libnetwork.Network) *types.NetworkResource {
	r := &types.NetworkResource{}
	if nw == nil {
		return r
	}

	r.Name = nw.Name()
	r.ID = nw.ID()
	r.Scope = nw.Info().Scope()
	r.Driver = nw.Type()
	r.EnableIPv6 = nw.Info().IPv6Enabled()
	r.Internal = nw.Info().Internal()
	r.Options = nw.Info().DriverOptions()
	r.Containers = make(map[string]types.EndpointResource)
	buildIpamResources(r, nw)
	r.Internal = nw.Info().Internal()

	epl := nw.Endpoints()
	for _, e := range epl {
		ei := e.Info()
		if ei == nil {
			continue
		}
		sb := ei.Sandbox()
		if sb == nil {
			continue
		}

		r.Containers[sb.ContainerID()] = buildEndpointResource(e)
	}
	return r
}

func buildNetworkResource(nw libnetwork.Network) *types.NetworkResource {
	r := &types.NetworkResource{}
	if nw == nil {
		return r
	}

	info := nw.Info()
	r.Name = nw.Name()
	r.ID = nw.ID()
	r.Scope = info.Scope()
	r.Driver = nw.Type()
	r.EnableIPv6 = info.IPv6Enabled()
	r.Internal = info.Internal()
	r.Options = info.DriverOptions()
	r.Containers = make(map[string]types.EndpointResource)
	buildIpamResources(r, info)
	r.Internal = info.Internal()
	r.Labels = info.Labels()

	epl := nw.Endpoints()
	for _, e := range epl {
		ei := e.Info()
		if ei == nil {
			continue
		}
		sb := ei.Sandbox()
		key := "ep-" + e.ID()
		if sb != nil {
			key = sb.ContainerID()
		}

		r.Containers[key] = buildEndpointResource(e)
	}
	return r
}

func buildNetworkResource(nw libnetwork.Network) *types.NetworkResource {
	r := &types.NetworkResource{}
	if nw == nil {
		return r
	}

	r.Name = nw.Name()
	r.ID = nw.ID()
	r.Scope = nw.Info().Scope()
	r.Driver = nw.Type()
	r.Containers = make(map[string]types.EndpointResource)
	r.Labels = nw.Info().Labels()
	buildIpamResources(r, nw)

	epl := nw.Endpoints()
	for _, e := range epl {
		sb := e.Info().Sandbox()
		if sb == nil {
			continue
		}

		r.Containers[sb.ContainerID()] = buildEndpointResource(e)
	}
	return r
}

func (daemon *Daemon) disconnectFromNetwork(container *container.Container, n libnetwork.Network, force bool) error {
	var (
		ep   libnetwork.Endpoint
		sbox libnetwork.Sandbox
	)

	s := func(current libnetwork.Endpoint) bool {
		epInfo := current.Info()
		if epInfo == nil {
			return false
		}
		if sb := epInfo.Sandbox(); sb != nil {
			if sb.ContainerID() == container.ID {
				ep = current
				sbox = sb
				return true
			}
		}
		return false
	}
	n.WalkEndpoints(s)

	if ep == nil && force {
		epName := strings.TrimPrefix(container.Name, "/")
		ep, err := n.EndpointByName(epName)
		if err != nil {
			return err
		}
		return ep.Delete(force)
	}

	if ep == nil {
		return fmt.Errorf("container %s is not connected to the network", container.ID)
	}

	if err := ep.Leave(sbox); err != nil {
		return fmt.Errorf("container %s failed to leave network %s: %v", container.ID, n.Name(), err)
	}

	container.NetworkSettings.Ports = getPortMapInfo(sbox)

	if err := ep.Delete(false); err != nil {
		return fmt.Errorf("endpoint delete failed for container %s on network %s: %v", container.ID, n.Name(), err)
	}

	delete(container.NetworkSettings.Networks, n.Name())

	if daemon.clusterProvider != nil && n.Info().Dynamic() && !container.Managed {
		if err := daemon.clusterProvider.DetachNetwork(n.Name(), container.ID); err != nil {
			logrus.Warnf("error detaching from network %s: %v", n.Name(), err)
			if err := daemon.clusterProvider.DetachNetwork(n.ID(), container.ID); err != nil {
				logrus.Warnf("error detaching from network %s: %v", n.ID(), err)
			}
		}
	}

	return nil
}

// LogNetworkEventWithAttributes generates an event related to a network with specific given attributes.
func (daemon *Daemon) LogNetworkEventWithAttributes(nw libnetwork.Network, action string, attributes map[string]string) {
	attributes["name"] = nw.Name()
	attributes["type"] = nw.Type()
	actor := events.Actor{
		ID:         nw.ID(),
		Attributes: attributes,
	}
	daemon.EventsService.Log(action, events.NetworkEventType, actor)
}

// updateContainerNetworkSettings update the network settings
func (daemon *Daemon) updateContainerNetworkSettings(container *container.Container, endpointsConfig map[string]*networktypes.EndpointSettings) error {
	var (
		n   libnetwork.Network
		err error
	)

	// TODO Windows: Remove this once TP4 builds are not supported
	// Windows TP4 build don't support libnetwork and in that case
	// daemon.netController will be nil
	if daemon.netController == nil {
		return nil
	}

	mode := container.HostConfig.NetworkMode
	if container.Config.NetworkDisabled || mode.IsContainer() {
		return nil
	}

	networkName := mode.NetworkName()
	if mode.IsDefault() {
		networkName = daemon.netController.Config().Daemon.DefaultNetwork
	}
	if mode.IsUserDefined() {
		n, err = daemon.FindNetwork(networkName)
		if err != nil {
			return err
		}
		networkName = n.Name()
	}
	if container.NetworkSettings == nil {
		container.NetworkSettings = &network.Settings{}
	}
	if len(endpointsConfig) > 0 {
		container.NetworkSettings.Networks = endpointsConfig
	}
	if container.NetworkSettings.Networks == nil {
		container.NetworkSettings.Networks = make(map[string]*networktypes.EndpointSettings)
		container.NetworkSettings.Networks[networkName] = new(networktypes.EndpointSettings)
	}
	if !mode.IsUserDefined() {
		return nil
	}
	// Make sure to internally store the per network endpoint config by network name
	if _, ok := container.NetworkSettings.Networks[networkName]; ok {
		return nil
	}
	if nwConfig, ok := container.NetworkSettings.Networks[n.ID()]; ok {
		container.NetworkSettings.Networks[networkName] = nwConfig
		delete(container.NetworkSettings.Networks, n.ID())
		return nil
	}

	return nil
}

// updateContainerNetworkSettings update the network settings
func (daemon *Daemon) updateContainerNetworkSettings(container *container.Container, endpointsConfig map[string]*networktypes.EndpointSettings) error {
	var (
		n   libnetwork.Network
		err error
	)

	mode := container.HostConfig.NetworkMode
	if container.Config.NetworkDisabled || mode.IsContainer() {
		return nil
	}

	networkName := mode.NetworkName()
	if mode.IsDefault() {
		networkName = daemon.netController.Config().Daemon.DefaultNetwork
	}
	if mode.IsUserDefined() {
		n, err = daemon.FindNetwork(networkName)
		if err != nil {
			return err
		}
		if !container.Managed && n.Info().Dynamic() {
			return errClusterNetworkOnRun(networkName)
		}
		networkName = n.Name()
	}
	if container.NetworkSettings == nil {
		container.NetworkSettings = &network.Settings{}
	}
	if len(endpointsConfig) > 0 {
		container.NetworkSettings.Networks = endpointsConfig
	}
	if container.NetworkSettings.Networks == nil {
		container.NetworkSettings.Networks = make(map[string]*networktypes.EndpointSettings)
		container.NetworkSettings.Networks[networkName] = new(networktypes.EndpointSettings)
	}
	if !mode.IsUserDefined() {
		return nil
	}
	// Make sure to internally store the per network endpoint config by network name
	if _, ok := container.NetworkSettings.Networks[networkName]; ok {
		return nil
	}
	if nwConfig, ok := container.NetworkSettings.Networks[n.ID()]; ok {
		container.NetworkSettings.Networks[networkName] = nwConfig
		delete(container.NetworkSettings.Networks, n.ID())
		return nil
	}

	return nil
}

func (n *networkRouter) buildNetworkResource(nw libnetwork.Network) *types.NetworkResource {
	r := &types.NetworkResource{}
	if nw == nil {
		return r
	}

	info := nw.Info()
	r.Name = nw.Name()
	r.ID = nw.ID()
	r.Created = info.Created()
	r.Scope = info.Scope()
	if n.clusterProvider.IsManager() {
		if _, err := n.clusterProvider.GetNetwork(nw.Name()); err == nil {
			r.Scope = "swarm"
		}
	} else if info.Dynamic() {
		r.Scope = "swarm"
	}
	r.Driver = nw.Type()
	r.EnableIPv6 = info.IPv6Enabled()
	r.Internal = info.Internal()
	r.Attachable = info.Attachable()
	r.Options = info.DriverOptions()
	r.Containers = make(map[string]types.EndpointResource)
	buildIpamResources(r, info)
	r.Labels = info.Labels()

	peers := info.Peers()
	if len(peers) != 0 {
		r.Peers = buildPeerInfoResources(peers)
	}

	epl := nw.Endpoints()
	for _, e := range epl {
		ei := e.Info()
		if ei == nil {
			continue
		}
		sb := ei.Sandbox()
		tmpID := e.ID()
		key := "ep-" + tmpID
		if sb != nil {
			key = sb.ContainerID()
		}

		r.Containers[key] = buildEndpointResource(tmpID, e.Name(), ei)
	}
	return r
}

func buildNetworkResource(nw libnetwork.Network) *networkResource {
	r := &networkResource{}
	if nw != nil {
		r.Name = nw.Name()
		r.ID = nw.ID()
		r.Type = nw.Type()
		epl := nw.Endpoints()
		r.Endpoints = make([]*endpointResource, 0, len(epl))
		for _, e := range epl {
			epr := buildEndpointResource(e)
			r.Endpoints = append(r.Endpoints, epr)
		}
	}
	return r
}

// BuildEndpointInfo sets endpoint-related fields on container.NetworkSettings based on the provided network and endpoint.
func (container *Container) BuildEndpointInfo(n libnetwork.Network, ep libnetwork.Endpoint) error {
	if ep == nil {
		return errInvalidEndpoint
	}

	networkSettings := container.NetworkSettings
	if networkSettings == nil {
		return errInvalidNetwork
	}

	epInfo := ep.Info()
	if epInfo == nil {
		// It is not an error to get an empty endpoint info
		return nil
	}

	if _, ok := networkSettings.Networks[n.Name()]; !ok {
		networkSettings.Networks[n.Name()] = &network.EndpointSettings{
			EndpointSettings: &networktypes.EndpointSettings{},
		}
	}
	networkSettings.Networks[n.Name()].NetworkID = n.ID()
	networkSettings.Networks[n.Name()].EndpointID = ep.ID()

	iface := epInfo.Iface()
	if iface == nil {
		return nil
	}

	if iface.MacAddress() != nil {
		networkSettings.Networks[n.Name()].MacAddress = iface.MacAddress().String()
	}

	if iface.Address() != nil {
		ones, _ := iface.Address().Mask.Size()
		networkSettings.Networks[n.Name()].IPAddress = iface.Address().IP.String()
		networkSettings.Networks[n.Name()].IPPrefixLen = ones
	}

	if iface.AddressIPv6() != nil && iface.AddressIPv6().IP.To16() != nil {
		onesv6, _ := iface.AddressIPv6().Mask.Size()
		networkSettings.Networks[n.Name()].GlobalIPv6Address = iface.AddressIPv6().IP.String()
		networkSettings.Networks[n.Name()].GlobalIPv6PrefixLen = onesv6
	}

	return nil
}

// BuildCreateEndpointOptions builds endpoint options from a given network.
func (container *Container) BuildCreateEndpointOptions(n libnetwork.Network, epConfig *networktypes.EndpointSettings, sb libnetwork.Sandbox, daemonDNS []string) ([]libnetwork.EndpointOption, error) {
	var (
		bindings      = make(nat.PortMap)
		pbList        []types.PortBinding
		exposeList    []types.TransportPort
		createOptions []libnetwork.EndpointOption
	)

	defaultNetName := runconfig.DefaultDaemonNetworkMode().NetworkName()

	if (!container.EnableServiceDiscoveryOnDefaultNetwork() && n.Name() == defaultNetName) ||
		container.NetworkSettings.IsAnonymousEndpoint {
		createOptions = append(createOptions, libnetwork.CreateOptionAnonymous())
	}

	if epConfig != nil {
		ipam := epConfig.IPAMConfig
		if ipam != nil && (ipam.IPv4Address != "" || ipam.IPv6Address != "" || len(ipam.LinkLocalIPs) > 0) {
			var ipList []net.IP
			for _, ips := range ipam.LinkLocalIPs {
				if ip := net.ParseIP(ips); ip != nil {
					ipList = append(ipList, ip)
				}
			}
			createOptions = append(createOptions,
				libnetwork.CreateOptionIpam(net.ParseIP(ipam.IPv4Address), net.ParseIP(ipam.IPv6Address), ipList, nil))
		}

		for _, alias := range epConfig.Aliases {
			createOptions = append(createOptions, libnetwork.CreateOptionMyAlias(alias))
		}
	}

	if container.NetworkSettings.Service != nil {
		svcCfg := container.NetworkSettings.Service

		var vip string
		if svcCfg.VirtualAddresses[n.ID()] != nil {
			vip = svcCfg.VirtualAddresses[n.ID()].IPv4
		}

		var portConfigs []*libnetwork.PortConfig
		for _, portConfig := range svcCfg.ExposedPorts {
			portConfigs = append(portConfigs, &libnetwork.PortConfig{
				Name:          portConfig.Name,
				Protocol:      libnetwork.PortConfig_Protocol(portConfig.Protocol),
				TargetPort:    portConfig.TargetPort,
				PublishedPort: portConfig.PublishedPort,
			})
		}

		createOptions = append(createOptions, libnetwork.CreateOptionService(svcCfg.Name, svcCfg.ID, net.ParseIP(vip), portConfigs, svcCfg.Aliases[n.ID()]))
	}

	if !containertypes.NetworkMode(n.Name()).IsUserDefined() {
		createOptions = append(createOptions, libnetwork.CreateOptionDisableResolution())
	}

	// configs that are applicable only for the endpoint in the network
	// to which container was connected to on docker run.
	// Ideally all these network-specific endpoint configurations must be moved under
	// container.NetworkSettings.Networks[n.Name()]
	if n.Name() == container.HostConfig.NetworkMode.NetworkName() ||
		(n.Name() == defaultNetName && container.HostConfig.NetworkMode.IsDefault()) {
		if container.Config.MacAddress != "" {
			mac, err := net.ParseMAC(container.Config.MacAddress)
			if err != nil {
				return nil, err
			}

			genericOption := options.Generic{
				netlabel.MacAddress: mac,
			}

			createOptions = append(createOptions, libnetwork.EndpointOptionGeneric(genericOption))
		}
	}

	// Port-mapping rules belong to the container & applicable only to non-internal networks
	portmaps := GetSandboxPortMapInfo(sb)
	if n.Info().Internal() || len(portmaps) > 0 {
		return createOptions, nil
	}

	if container.HostConfig.PortBindings != nil {
		for p, b := range container.HostConfig.PortBindings {
			bindings[p] = []nat.PortBinding{}
			for _, bb := range b {
				bindings[p] = append(bindings[p], nat.PortBinding{
					HostIP:   bb.HostIP,
					HostPort: bb.HostPort,
				})
			}
		}
	}

	portSpecs := container.Config.ExposedPorts
	ports := make([]nat.Port, len(portSpecs))
	var i int
//.........这里部分代码省略.........

// updateContainerNetworkSettings update the network settings
func (daemon *Daemon) updateContainerNetworkSettings(container *container.Container, endpointsConfig map[string]*networktypes.EndpointSettings) {
	var n libnetwork.Network

	mode := container.HostConfig.NetworkMode
	if container.Config.NetworkDisabled || mode.IsContainer() {
		return
	}

	networkName := mode.NetworkName()
	if mode.IsDefault() {
		networkName = daemon.netController.Config().Daemon.DefaultNetwork
	}

	if mode.IsUserDefined() {
		var err error

		n, err = daemon.FindNetwork(networkName)
		if err == nil {
			networkName = n.Name()
		}
	}

	if container.NetworkSettings == nil {
		container.NetworkSettings = &network.Settings{}
	}

	if len(endpointsConfig) > 0 {
		if container.NetworkSettings.Networks == nil {
			container.NetworkSettings.Networks = make(map[string]*network.EndpointSettings)
		}

		for name, epConfig := range endpointsConfig {
			container.NetworkSettings.Networks[name] = &network.EndpointSettings{
				EndpointSettings: epConfig,
			}
		}
	}

	if container.NetworkSettings.Networks == nil {
		container.NetworkSettings.Networks = make(map[string]*network.EndpointSettings)
		container.NetworkSettings.Networks[networkName] = &network.EndpointSettings{
			EndpointSettings: &networktypes.EndpointSettings{},
		}
	}

	// Convert any settings added by client in default name to
	// engine's default network name key
	if mode.IsDefault() {
		if nConf, ok := container.NetworkSettings.Networks[mode.NetworkName()]; ok {
			container.NetworkSettings.Networks[networkName] = nConf
			delete(container.NetworkSettings.Networks, mode.NetworkName())
		}
	}

	if !mode.IsUserDefined() {
		return
	}
	// Make sure to internally store the per network endpoint config by network name
	if _, ok := container.NetworkSettings.Networks[networkName]; ok {
		return
	}

	if n != nil {
		if nwConfig, ok := container.NetworkSettings.Networks[n.ID()]; ok {
			container.NetworkSettings.Networks[networkName] = nwConfig
			delete(container.NetworkSettings.Networks, n.ID())
			return
		}
	}
}

//.........这里部分代码省略.........
		}
	}()

	ep12, err := net1.CreateEndpoint("ep12")
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := ep12.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	// Test list methods on net1
	epList1 := net1.Endpoints()
	if len(epList1) != 2 {
		t.Fatalf("Endpoints() returned wrong number of elements: %d instead of 2", len(epList1))
	}
	// endpoint order is not guaranteed
	for _, e := range epList1 {
		if e != ep11 && e != ep12 {
			t.Fatal("Endpoints() did not return all the expected elements")
		}
	}

	// Test Endpoint Walk method
	var epName string
	var epWanted libnetwork.Endpoint
	wlk := func(ep libnetwork.Endpoint) bool {
		if ep.Name() == epName {
			epWanted = ep
			return true
		}
		return false
	}

	// Look for ep1 on network1
	epName = "ep11"
	net1.WalkEndpoints(wlk)
	if epWanted == nil {
		t.Fatal(err)
	}
	if ep11 != epWanted {
		t.Fatal(err)
	}

	current := len(controller.Networks())

	// Create network 2
	netOption = options.Generic{
		netlabel.GenericData: options.Generic{
			"BridgeName": "network2",
		},
	}

	net2, err := createTestNetwork(bridgeNetType, "network2", netOption, nil, nil)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := net2.Delete(); err != nil {
			t.Fatal(err)
		}
	}()

	// Test Networks method
	if len(controller.Networks()) != current+1 {
		t.Fatalf("Did not find the expected number of networks")
	}

	// Test Network Walk method
	var netName string
	var netWanted libnetwork.Network
	nwWlk := func(nw libnetwork.Network) bool {
		if nw.Name() == netName {
			netWanted = nw
			return true
		}
		return false
	}

	// Look for network named "network1" and "network2"
	netName = "network1"
	controller.WalkNetworks(nwWlk)
	if netWanted == nil {
		t.Fatal(err)
	}
	if net1.ID() != netWanted.ID() {
		t.Fatal(err)
	}

	netName = "network2"
	controller.WalkNetworks(nwWlk)
	if netWanted == nil {
		t.Fatal(err)
	}
	if net2.ID() != netWanted.ID() {
		t.Fatal(err)
	}
}