Exemplo n.º 1
0
func (daemon *Daemon) updateNetworkConfig(container *container.Container, n libnetwork.Network, endpointConfig *networktypes.EndpointSettings, updateSettings bool) error {

	if !containertypes.NetworkMode(n.Name()).IsUserDefined() {
		if hasUserDefinedIPAddress(endpointConfig) && !enableIPOnPredefinedNetwork() {
			return runconfig.ErrUnsupportedNetworkAndIP
		}
		if endpointConfig != nil && len(endpointConfig.Aliases) > 0 && !container.EnableServiceDiscoveryOnDefaultNetwork() {
			return runconfig.ErrUnsupportedNetworkAndAlias
		}
	} else {
		addShortID := true
		shortID := stringid.TruncateID(container.ID)
		for _, alias := range endpointConfig.Aliases {
			if alias == shortID {
				addShortID = false
				break
			}
		}
		if addShortID {
			endpointConfig.Aliases = append(endpointConfig.Aliases, shortID)
		}
	}

	if err := validateNetworkingConfig(n, endpointConfig); err != nil {
		return err
	}

	if updateSettings {
		if err := daemon.updateNetworkSettings(container, n, endpointConfig); err != nil {
			return err
		}
	}
	return nil
}
Exemplo n.º 2
0
func (daemon *Daemon) connectToNetwork(container *container.Container, idOrName string, endpointConfig *networktypes.EndpointSettings, updateSettings bool) (err error) {
	start := time.Now()
	if container.HostConfig.NetworkMode.IsContainer() {
		return runconfig.ErrConflictSharedNetwork
	}
	if containertypes.NetworkMode(idOrName).IsBridge() &&
		daemon.configStore.DisableBridge {
		container.Config.NetworkDisabled = true
		return nil
	}
	if endpointConfig == nil {
		endpointConfig = &networktypes.EndpointSettings{}
	}

	n, config, err := daemon.findAndAttachNetwork(container, idOrName, endpointConfig)
	if err != nil {
		return err
	}
	if n == nil {
		return nil
	}

	var operIPAM bool
	if config != nil {
		if epConfig, ok := config.EndpointsConfig[n.Name()]; ok {
			if endpointConfig.IPAMConfig == nil ||
				(endpointConfig.IPAMConfig.IPv4Address == "" &&
					endpointConfig.IPAMConfig.IPv6Address == "" &&
					len(endpointConfig.IPAMConfig.LinkLocalIPs) == 0) {
				operIPAM = true
			}

			// copy IPAMConfig and NetworkID from epConfig via AttachNetwork
			endpointConfig.IPAMConfig = epConfig.IPAMConfig
			endpointConfig.NetworkID = epConfig.NetworkID
		}
	}

	err = daemon.updateNetworkConfig(container, n, endpointConfig, updateSettings)
	if err != nil {
		return err
	}

	controller := daemon.netController
	sb := daemon.getNetworkSandbox(container)
	createOptions, err := container.BuildCreateEndpointOptions(n, endpointConfig, sb, daemon.configStore.DNS)
	if err != nil {
		return err
	}

	endpointName := strings.TrimPrefix(container.Name, "/")
	ep, err := n.CreateEndpoint(endpointName, createOptions...)
	if err != nil {
		return err
	}
	defer func() {
		if err != nil {
			if e := ep.Delete(false); e != nil {
				logrus.Warnf("Could not rollback container connection to network %s", idOrName)
			}
		}
	}()
	container.NetworkSettings.Networks[n.Name()] = &network.EndpointSettings{
		EndpointSettings: endpointConfig,
		IPAMOperational:  operIPAM,
	}
	if _, ok := container.NetworkSettings.Networks[n.ID()]; ok {
		delete(container.NetworkSettings.Networks, n.ID())
	}

	if err := daemon.updateEndpointNetworkSettings(container, n, ep); err != nil {
		return err
	}

	if sb == nil {
		options, err := daemon.buildSandboxOptions(container)
		if err != nil {
			return err
		}
		sb, err = controller.NewSandbox(container.ID, options...)
		if err != nil {
			return err
		}

		container.UpdateSandboxNetworkSettings(sb)
	}

	joinOptions, err := container.BuildJoinOptions(n)
	if err != nil {
		return err
	}

	if err := ep.Join(sb, joinOptions...); err != nil {
		return err
	}

	if err := container.UpdateJoinInfo(n, ep); err != nil {
		return fmt.Errorf("Updating join info failed: %v", err)
	}

	container.NetworkSettings.Ports = getPortMapInfo(sb)

	daemon.LogNetworkEventWithAttributes(n, "connect", map[string]string{"container": container.ID})
	networkActions.WithValues("connect").UpdateSince(start)
	return nil
}