Exemple #1
0
// 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
	for p := range portSpecs {
		ports[i] = p
		i++
	}
	nat.SortPortMap(ports, bindings)
	for _, port := range ports {
		expose := types.TransportPort{}
		expose.Proto = types.ParseProtocol(port.Proto())
		expose.Port = uint16(port.Int())
		exposeList = append(exposeList, expose)

		pb := types.PortBinding{Port: expose.Port, Proto: expose.Proto}
		binding := bindings[port]
		for i := 0; i < len(binding); i++ {
			pbCopy := pb.GetCopy()
			newP, err := nat.NewPort(nat.SplitProtoPort(binding[i].HostPort))
			var portStart, portEnd int
			if err == nil {
				portStart, portEnd, err = newP.Range()
			}
			if err != nil {
				return nil, fmt.Errorf("Error parsing HostPort value(%s):%v", binding[i].HostPort, err)
			}
			pbCopy.HostPort = uint16(portStart)
			pbCopy.HostPortEnd = uint16(portEnd)
			pbCopy.HostIP = net.ParseIP(binding[i].HostIP)
			pbList = append(pbList, pbCopy)
		}

		if container.HostConfig.PublishAllPorts && len(binding) == 0 {
			pbList = append(pbList, pb)
		}
	}

	var dns []string

	if len(container.HostConfig.DNS) > 0 {
		dns = container.HostConfig.DNS
	} else if len(daemonDNS) > 0 {
		dns = daemonDNS
	}

	if len(dns) > 0 {
		createOptions = append(createOptions,
			libnetwork.CreateOptionDNS(dns))
	}

	createOptions = append(createOptions,
		libnetwork.CreateOptionPortMapping(pbList),
		libnetwork.CreateOptionExposedPorts(exposeList))

	return createOptions, nil
}
Exemple #2
0
// BuildCreateEndpointOptions builds endpoint options from a given network.
func (container *Container) BuildCreateEndpointOptions(n libnetwork.Network, epConfig *network.EndpointSettings, sb libnetwork.Sandbox) ([]libnetwork.EndpointOption, error) {
	var (
		portSpecs     = make(nat.PortSet)
		bindings      = make(nat.PortMap)
		pbList        []types.PortBinding
		exposeList    []types.TransportPort
		createOptions []libnetwork.EndpointOption
	)

	if n.Name() == "bridge" || container.NetworkSettings.IsAnonymousEndpoint {
		createOptions = append(createOptions, libnetwork.CreateOptionAnonymous())
	}

	if epConfig != nil {
		ipam := epConfig.IPAMConfig
		if ipam != nil && (ipam.IPv4Address != "" || ipam.IPv6Address != "") {
			createOptions = append(createOptions,
				libnetwork.CreateOptionIpam(net.ParseIP(ipam.IPv4Address), net.ParseIP(ipam.IPv6Address), nil))
		}

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

	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() == "bridge" && 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.Config.ExposedPorts != nil {
		portSpecs = container.Config.ExposedPorts
	}

	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,
				})
			}
		}
	}

	ports := make([]nat.Port, len(portSpecs))
	var i int
	for p := range portSpecs {
		ports[i] = p
		i++
	}
	nat.SortPortMap(ports, bindings)
	for _, port := range ports {
		expose := types.TransportPort{}
		expose.Proto = types.ParseProtocol(port.Proto())
		expose.Port = uint16(port.Int())
		exposeList = append(exposeList, expose)

		pb := types.PortBinding{Port: expose.Port, Proto: expose.Proto}
		binding := bindings[port]
		for i := 0; i < len(binding); i++ {
			pbCopy := pb.GetCopy()
			newP, err := nat.NewPort(nat.SplitProtoPort(binding[i].HostPort))
			var portStart, portEnd int
			if err == nil {
				portStart, portEnd, err = newP.Range()
			}
			if err != nil {
				return nil, derr.ErrorCodeHostPort.WithArgs(binding[i].HostPort, err)
			}
			pbCopy.HostPort = uint16(portStart)
			pbCopy.HostPortEnd = uint16(portEnd)
			pbCopy.HostIP = net.ParseIP(binding[i].HostIP)
			pbList = append(pbList, pbCopy)
		}

		if container.HostConfig.PublishAllPorts && len(binding) == 0 {
			pbList = append(pbList, pb)
		}
	}

	createOptions = append(createOptions,
		libnetwork.CreateOptionPortMapping(pbList),
		libnetwork.CreateOptionExposedPorts(exposeList))

	return createOptions, nil
}
Exemple #3
0
// BuildCreateEndpointOptions builds endpoint options from a given network.
func (container *Container) BuildCreateEndpointOptions(n libnetwork.Network) ([]libnetwork.EndpointOption, error) {
	var (
		portSpecs     = make(nat.PortSet)
		bindings      = make(nat.PortMap)
		pbList        []types.PortBinding
		exposeList    []types.TransportPort
		createOptions []libnetwork.EndpointOption
	)

	if n.Name() == "bridge" || container.NetworkSettings.IsAnonymousEndpoint {
		createOptions = append(createOptions, libnetwork.CreateOptionAnonymous())
	}

	// Other configs are applicable only for the endpoint in the network
	// to which container was connected to on docker run.
	if n.Name() != container.HostConfig.NetworkMode.NetworkName() &&
		!(n.Name() == "bridge" && container.HostConfig.NetworkMode.IsDefault()) {
		return createOptions, nil
	}

	if container.Config.ExposedPorts != nil {
		portSpecs = container.Config.ExposedPorts
	}

	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,
				})
			}
		}
	}

	ports := make([]nat.Port, len(portSpecs))
	var i int
	for p := range portSpecs {
		ports[i] = p
		i++
	}
	nat.SortPortMap(ports, bindings)
	for _, port := range ports {
		expose := types.TransportPort{}
		expose.Proto = types.ParseProtocol(port.Proto())
		expose.Port = uint16(port.Int())
		exposeList = append(exposeList, expose)

		pb := types.PortBinding{Port: expose.Port, Proto: expose.Proto}
		binding := bindings[port]
		for i := 0; i < len(binding); i++ {
			pbCopy := pb.GetCopy()
			newP, err := nat.NewPort(nat.SplitProtoPort(binding[i].HostPort))
			var portStart, portEnd int
			if err == nil {
				portStart, portEnd, err = newP.Range()
			}
			if err != nil {
				return nil, derr.ErrorCodeHostPort.WithArgs(binding[i].HostPort, err)
			}
			pbCopy.HostPort = uint16(portStart)
			pbCopy.HostPortEnd = uint16(portEnd)
			pbCopy.HostIP = net.ParseIP(binding[i].HostIP)
			pbList = append(pbList, pbCopy)
		}

		if container.HostConfig.PublishAllPorts && len(binding) == 0 {
			pbList = append(pbList, pb)
		}
	}

	createOptions = append(createOptions,
		libnetwork.CreateOptionPortMapping(pbList),
		libnetwork.CreateOptionExposedPorts(exposeList))

	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))
	}

	return createOptions, nil
}
func (daemon *Daemon) buildSandboxOptions(container *container.Container, n libnetwork.Network) ([]libnetwork.SandboxOption, error) {
	var (
		sboxOptions []libnetwork.SandboxOption
		err         error
		dns         []string
		dnsSearch   []string
		dnsOptions  []string
		bindings    = make(nat.PortMap)
		pbList      []types.PortBinding
		exposeList  []types.TransportPort
	)

	defaultNetName := runconfig.DefaultDaemonNetworkMode().NetworkName()
	sboxOptions = append(sboxOptions, libnetwork.OptionHostname(container.Config.Hostname),
		libnetwork.OptionDomainname(container.Config.Domainname))

	if container.HostConfig.NetworkMode.IsHost() {
		sboxOptions = append(sboxOptions, libnetwork.OptionUseDefaultSandbox())
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginHostsPath("/etc/hosts"))
		sboxOptions = append(sboxOptions, libnetwork.OptionOriginResolvConfPath("/etc/resolv.conf"))
	} else if daemon.execDriver.SupportsHooks() {
		// OptionUseExternalKey is mandatory for userns support.
		// But optional for non-userns support
		sboxOptions = append(sboxOptions, libnetwork.OptionUseExternalKey())
	}

	container.HostsPath, err = container.GetRootResourcePath("hosts")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionHostsPath(container.HostsPath))

	container.ResolvConfPath, err = container.GetRootResourcePath("resolv.conf")
	if err != nil {
		return nil, err
	}
	sboxOptions = append(sboxOptions, libnetwork.OptionResolvConfPath(container.ResolvConfPath))

	if len(container.HostConfig.DNS) > 0 {
		dns = container.HostConfig.DNS
	} else if len(daemon.configStore.DNS) > 0 {
		dns = daemon.configStore.DNS
	}

	for _, d := range dns {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNS(d))
	}

	if len(container.HostConfig.DNSSearch) > 0 {
		dnsSearch = container.HostConfig.DNSSearch
	} else if len(daemon.configStore.DNSSearch) > 0 {
		dnsSearch = daemon.configStore.DNSSearch
	}

	for _, ds := range dnsSearch {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNSSearch(ds))
	}

	if len(container.HostConfig.DNSOptions) > 0 {
		dnsOptions = container.HostConfig.DNSOptions
	} else if len(daemon.configStore.DNSOptions) > 0 {
		dnsOptions = daemon.configStore.DNSOptions
	}

	for _, ds := range dnsOptions {
		sboxOptions = append(sboxOptions, libnetwork.OptionDNSOptions(ds))
	}

	if container.NetworkSettings.SecondaryIPAddresses != nil {
		name := container.Config.Hostname
		if container.Config.Domainname != "" {
			name = name + "." + container.Config.Domainname
		}

		for _, a := range container.NetworkSettings.SecondaryIPAddresses {
			sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(name, a.Addr))
		}
	}

	for _, extraHost := range container.HostConfig.ExtraHosts {
		// allow IPv6 addresses in extra hosts; only split on first ":"
		parts := strings.SplitN(extraHost, ":", 2)
		sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(parts[0], parts[1]))
	}

	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
	for p := range portSpecs {
		ports[i] = p
		i++
	}
	nat.SortPortMap(ports, bindings)
	for _, port := range ports {
		expose := types.TransportPort{}
		expose.Proto = types.ParseProtocol(port.Proto())
		expose.Port = uint16(port.Int())
		exposeList = append(exposeList, expose)

		pb := types.PortBinding{Port: expose.Port, Proto: expose.Proto}
		binding := bindings[port]
		for i := 0; i < len(binding); i++ {
			pbCopy := pb.GetCopy()
			newP, err := nat.NewPort(nat.SplitProtoPort(binding[i].HostPort))
			var portStart, portEnd int
			if err == nil {
				portStart, portEnd, err = newP.Range()
			}
			if err != nil {
				return nil, fmt.Errorf("Error parsing HostPort value(%s):%v", binding[i].HostPort, err)
			}
			pbCopy.HostPort = uint16(portStart)
			pbCopy.HostPortEnd = uint16(portEnd)
			pbCopy.HostIP = net.ParseIP(binding[i].HostIP)
			pbList = append(pbList, pbCopy)
		}

		if container.HostConfig.PublishAllPorts && len(binding) == 0 {
			pbList = append(pbList, pb)
		}
	}

	sboxOptions = append(sboxOptions,
		libnetwork.OptionPortMapping(pbList),
		libnetwork.OptionExposedPorts(exposeList))

	// Link feature is supported only for the default bridge network.
	// return if this call to build join options is not for default bridge network
	if n.Name() != defaultNetName {
		return sboxOptions, nil
	}

	ep, _ := container.GetEndpointInNetwork(n)
	if ep == nil {
		return sboxOptions, nil
	}

	var childEndpoints, parentEndpoints []string

	children := daemon.children(container)
	for linkAlias, child := range children {
		if !isLinkable(child) {
			return nil, fmt.Errorf("Cannot link to %s, as it does not belong to the default network", child.Name)
		}
		_, alias := path.Split(linkAlias)
		// allow access to the linked container via the alias, real name, and container hostname
		aliasList := alias + " " + child.Config.Hostname
		// only add the name if alias isn't equal to the name
		if alias != child.Name[1:] {
			aliasList = aliasList + " " + child.Name[1:]
		}
		sboxOptions = append(sboxOptions, libnetwork.OptionExtraHost(aliasList, child.NetworkSettings.Networks[defaultNetName].IPAddress))
		cEndpoint, _ := child.GetEndpointInNetwork(n)
		if cEndpoint != nil && cEndpoint.ID() != "" {
			childEndpoints = append(childEndpoints, cEndpoint.ID())
		}
	}

	bridgeSettings := container.NetworkSettings.Networks[defaultNetName]
	for alias, parent := range daemon.parents(container) {
		if daemon.configStore.DisableBridge || !container.HostConfig.NetworkMode.IsPrivate() {
			continue
		}

		_, alias = path.Split(alias)
		logrus.Debugf("Update /etc/hosts of %s for alias %s with ip %s", parent.ID, alias, bridgeSettings.IPAddress)
		sboxOptions = append(sboxOptions, libnetwork.OptionParentUpdate(
			parent.ID,
			alias,
			bridgeSettings.IPAddress,
		))
		if ep.ID() != "" {
			parentEndpoints = append(parentEndpoints, ep.ID())
		}
	}

	linkOptions := options.Generic{
		netlabel.GenericData: options.Generic{
			"ParentEndpoints": parentEndpoints,
			"ChildEndpoints":  childEndpoints,
		},
	}

	sboxOptions = append(sboxOptions, libnetwork.OptionGeneric(linkOptions))
	return sboxOptions, nil
}