Example #1
0
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
}
Example #2
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
}
Example #3
0
func (daemon *Daemon) updateNetworkSettings(container *Container, n libnetwork.Network) error {
	if container.NetworkSettings == nil {
		container.NetworkSettings = &network.Settings{Networks: make(map[string]*network.EndpointSettings)}
	}

	if !container.hostConfig.NetworkMode.IsHost() && runconfig.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}

	for s := range container.NetworkSettings.Networks {
		sn, err := daemon.FindNetwork(s)
		if err != nil {
			continue
		}

		if sn.Name() == n.Name() {
			// Avoid duplicate config
			return nil
		}
		if !runconfig.NetworkMode(sn.Type()).IsPrivate() ||
			!runconfig.NetworkMode(n.Type()).IsPrivate() {
			return runconfig.ErrConflictSharedNetwork
		}
		if runconfig.NetworkMode(sn.Name()).IsNone() ||
			runconfig.NetworkMode(n.Name()).IsNone() {
			return runconfig.ErrConflictNoNetwork
		}
	}
	container.NetworkSettings.Networks[n.Name()] = new(network.EndpointSettings)

	return nil
}
// User specified ip address is acceptable only for networks with user specified subnets.
func validateNetworkingConfig(n libnetwork.Network, epConfig *networktypes.EndpointSettings) error {
	if !hasUserDefinedIPAddress(epConfig) {
		return nil
	}
	_, nwIPv4Configs, nwIPv6Configs := n.Info().IpamConfig()
	for _, s := range []struct {
		ipConfigured  bool
		subnetConfigs []*libnetwork.IpamConf
	}{
		{
			ipConfigured:  len(epConfig.IPAMConfig.IPv4Address) > 0,
			subnetConfigs: nwIPv4Configs,
		},
		{
			ipConfigured:  len(epConfig.IPAMConfig.IPv6Address) > 0,
			subnetConfigs: nwIPv6Configs,
		},
	} {
		if s.ipConfigured {
			foundSubnet := false
			for _, cfg := range s.subnetConfigs {
				if len(cfg.PreferredPool) > 0 {
					foundSubnet = true
					break
				}
			}
			if !foundSubnet {
				return runconfig.ErrUnsupportedNetworkNoSubnetAndIP
			}
		}
	}

	return nil
}
Example #5
0
// ForceEndpointDelete deletes an endpoing from a network forcefully
func (daemon *Daemon) ForceEndpointDelete(name string, n libnetwork.Network) error {
	ep, err := n.EndpointByName(name)
	if err != nil {
		return err
	}
	return ep.Delete(true)
}
Example #6
0
func buildIpamResources(r *types.NetworkResource, nw libnetwork.Network) {
	id, opts, ipv4conf, ipv6conf := nw.Info().IpamConfig()

	ipv4Info, ipv6Info := nw.Info().IpamInfo()

	r.IPAM.Driver = id

	r.IPAM.Options = opts

	r.IPAM.Config = []network.IPAMConfig{}
	for _, ip4 := range ipv4conf {
		if ip4.PreferredPool == "" {
			continue
		}
		iData := network.IPAMConfig{}
		iData.Subnet = ip4.PreferredPool
		iData.IPRange = ip4.SubPool
		iData.Gateway = ip4.Gateway
		iData.AuxAddress = ip4.AuxAddresses
		r.IPAM.Config = append(r.IPAM.Config, iData)
	}

	if len(r.IPAM.Config) == 0 {
		for _, ip4Info := range ipv4Info {
			iData := network.IPAMConfig{}
			iData.Subnet = ip4Info.IPAMData.Pool.String()
			iData.Gateway = ip4Info.IPAMData.Gateway.String()
			r.IPAM.Config = append(r.IPAM.Config, iData)
		}
	}

	hasIpv6Conf := false
	for _, ip6 := range ipv6conf {
		if ip6.PreferredPool == "" {
			continue
		}
		hasIpv6Conf = true
		iData := network.IPAMConfig{}
		iData.Subnet = ip6.PreferredPool
		iData.IPRange = ip6.SubPool
		iData.Gateway = ip6.Gateway
		iData.AuxAddress = ip6.AuxAddresses
		r.IPAM.Config = append(r.IPAM.Config, iData)
	}

	if !hasIpv6Conf {
		for _, ip6Info := range ipv6Info {
			iData := network.IPAMConfig{}
			iData.Subnet = ip6Info.IPAMData.Pool.String()
			iData.Gateway = ip6Info.IPAMData.Gateway.String()
			r.IPAM.Config = append(r.IPAM.Config, iData)
		}
	}
}
// DisconnectFromNetwork disconnects container from network n.
func (daemon *Daemon) DisconnectFromNetwork(container *container.Container, n libnetwork.Network) error {
	if !container.Running {
		return derr.ErrorCodeNotRunning.WithArgs(container.ID)
	}

	if container.HostConfig.NetworkMode.IsHost() && containertypes.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}

	return disconnectFromNetwork(container, n)
}
Example #8
0
func (container *Container) updateJoinInfo(n libnetwork.Network, ep libnetwork.Endpoint) error {
	epInfo := ep.Info()
	if epInfo == nil {
		// It is not an error to get an empty endpoint info
		return nil
	}
	container.NetworkSettings.Networks[n.Name()].Gateway = epInfo.Gateway().String()
	if epInfo.GatewayIPv6().To16() != nil {
		container.NetworkSettings.Networks[n.Name()].IPv6Gateway = epInfo.GatewayIPv6().String()
	}

	return nil
}
Example #9
0
// BuildJoinOptions builds endpoint Join options from a given network.
func (container *Container) BuildJoinOptions(n libnetwork.Network) ([]libnetwork.EndpointOption, error) {
	var joinOptions []libnetwork.EndpointOption
	if epConfig, ok := container.NetworkSettings.Networks[n.Name()]; ok {
		for _, str := range epConfig.Links {
			name, alias, err := runconfigopts.ParseLink(str)
			if err != nil {
				return nil, err
			}
			joinOptions = append(joinOptions, libnetwork.CreateOptionAlias(name, alias))
		}
	}
	return joinOptions, nil
}
Example #10
0
func (container *Container) updateNetworkSettings(n libnetwork.Network) error {
	if container.NetworkSettings == nil {
		container.NetworkSettings = &network.Settings{Networks: []string{}}
	}
	settings := container.NetworkSettings

	for _, s := range settings.Networks {
		sn, err := container.daemon.FindNetwork(s)
		if err != nil {
			continue
		}

		if sn.Name() == n.Name() {
			// Avoid duplicate config
			return nil
		}
		if !runconfig.NetworkMode(sn.Type()).IsPrivate() ||
			!runconfig.NetworkMode(n.Type()).IsPrivate() {
			return runconfig.ErrConflictSharedNetwork
		}
		if runconfig.NetworkMode(sn.Name()).IsNone() ||
			runconfig.NetworkMode(n.Name()).IsNone() {
			return runconfig.ErrConflictNoNetwork
		}
	}
	settings.Networks = append(settings.Networks, n.Name())

	return nil
}
Example #11
0
// 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
}
Example #12
0
// DisconnectFromNetwork disconnects a container from a network
func (container *Container) DisconnectFromNetwork(n libnetwork.Network) error {
	if !container.Running {
		return derr.ErrorCodeNotRunning.WithArgs(container.ID)
	}

	if container.hostConfig.NetworkMode.IsHost() && runconfig.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}

	if err := container.disconnectFromNetwork(n); err != nil {
		return err
	}

	if err := container.toDiskLocking(); err != nil {
		return fmt.Errorf("Error saving container to disk: %v", err)
	}
	return nil
}
Example #13
0
func (container *Container) updateEndpointNetworkSettings(n libnetwork.Network, ep libnetwork.Endpoint) error {
	networkSettings := &network.Settings{NetworkID: n.ID(), EndpointID: ep.ID()}

	networkSettings, err := container.buildPortMapInfo(ep, networkSettings)
	if err != nil {
		return err
	}

	networkSettings, err = container.buildEndpointInfo(ep, networkSettings)
	if err != nil {
		return err
	}

	if container.hostConfig.NetworkMode == runconfig.NetworkMode("bridge") {
		networkSettings.Bridge = container.daemon.configStore.Bridge.Iface
	}

	container.NetworkSettings = networkSettings
	return nil
}
Example #14
0
func (container *Container) disconnectFromNetwork(n libnetwork.Network) error {
	var (
		ep   libnetwork.Endpoint
		sbox libnetwork.Sandbox
	)

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

	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)
	}

	if err := ep.Delete(); 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())
	return nil
}
// DisconnectFromNetwork disconnects container from network n.
func (daemon *Daemon) DisconnectFromNetwork(container *container.Container, n libnetwork.Network, force bool) error {
	if container.HostConfig.NetworkMode.IsHost() && containertypes.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}
	if !container.Running {
		if container.RemovalInProgress || container.Dead {
			return errRemovalContainer(container.ID)
		}
		if _, ok := container.NetworkSettings.Networks[n.Name()]; ok {
			delete(container.NetworkSettings.Networks, n.Name())
		} else {
			return fmt.Errorf("container %s is not connected to the network %s", container.ID, n.Name())
		}
	} else {
		if err := disconnectFromNetwork(container, n, false); err != nil {
			return err
		}
	}

	if err := container.ToDiskLocking(); err != nil {
		return fmt.Errorf("Error saving container to disk: %v", err)
	}

	attributes := map[string]string{
		"container": container.ID,
	}
	daemon.LogNetworkEventWithAttributes(n, "disconnect", attributes)
	return nil
}
Example #16
0
// 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
}
Example #17
0
File: api.go Project: noqcks/docker
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
}
Example #18
0
func 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())
	return nil
}
// DisconnectFromNetwork disconnects container from network n.
func (daemon *Daemon) DisconnectFromNetwork(container *container.Container, n libnetwork.Network) error {
	if !container.Running {
		return derr.ErrorCodeNotRunning.WithArgs(container.ID)
	}

	if container.HostConfig.NetworkMode.IsHost() && containertypes.NetworkMode(n.Type()).IsHost() {
		return runconfig.ErrConflictHostNetwork
	}

	if err := disconnectFromNetwork(container, n); err != nil {
		return err
	}

	if err := container.ToDiskLocking(); err != nil {
		return fmt.Errorf("Error saving container to disk: %v", err)
	}

	attributes := map[string]string{
		"container": container.ID,
	}
	daemon.LogNetworkEventWithAttributes(n, "disconnect", attributes)
	return nil
}
Example #20
0
// 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)
}
Example #21
0
func buildIpamResources(r *types.NetworkResource, nw libnetwork.Network) {
	id, ipv4conf, ipv6conf := nw.Info().IpamConfig()

	r.IPAM.Driver = id

	r.IPAM.Config = []network.IPAMConfig{}
	for _, ip4 := range ipv4conf {
		iData := network.IPAMConfig{}
		iData.Subnet = ip4.PreferredPool
		iData.IPRange = ip4.SubPool
		iData.Gateway = ip4.Gateway
		iData.AuxAddress = ip4.AuxAddresses
		r.IPAM.Config = append(r.IPAM.Config, iData)
	}

	for _, ip6 := range ipv6conf {
		iData := network.IPAMConfig{}
		iData.Subnet = ip6.PreferredPool
		iData.IPRange = ip6.SubPool
		iData.Gateway = ip6.Gateway
		iData.AuxAddress = ip6.AuxAddresses
		r.IPAM.Config = append(r.IPAM.Config, iData)
	}
}
Example #22
0
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)
	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
}
Example #23
0
func (container *Container) disconnectFromNetwork(n libnetwork.Network, updateSettings bool) error {
	var (
		ep   libnetwork.Endpoint
		sbox libnetwork.Sandbox
	)

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

	if ep == nil {
		return fmt.Errorf("could not locate network endpoint for container %s", 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)
	}

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

	if updateSettings {
		networks := container.NetworkSettings.Networks
		for i, s := range networks {
			sn, err := container.daemon.FindNetwork(s)
			if err != nil {
				continue
			}
			if sn.Name() == n.Name() {
				networks = append(networks[:i], networks[i+1:]...)
				container.NetworkSettings.Networks = networks
				break
			}
		}
	}
	return nil
}
Example #24
0
func (container *Container) buildEndpointInfo(n libnetwork.Network, ep libnetwork.Endpoint, networkSettings *network.Settings) (*network.Settings, error) {
	if ep == nil {
		return nil, derr.ErrorCodeEmptyEndpoint
	}

	if networkSettings == nil {
		return nil, derr.ErrorCodeEmptyNetwork
	}

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

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

	iface := epInfo.Iface()
	if iface == nil {
		return networkSettings, 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 networkSettings, nil
}
Example #25
0
func (container *Container) getEndpointInNetwork(n libnetwork.Network) (libnetwork.Endpoint, error) {
	endpointName := strings.TrimPrefix(container.Name, "/")
	return n.EndpointByName(endpointName)
}
Example #26
0
func (daemon *Daemon) buildSandboxOptions(container *Container, n libnetwork.Network) ([]libnetwork.SandboxOption, error) {
	var (
		sboxOptions []libnetwork.SandboxOption
		err         error
		dns         []string
		dnsSearch   []string
		dnsOptions  []string
	)

	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]))
	}

	// 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() != "bridge" {
		return sboxOptions, nil
	}

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

	var childEndpoints, parentEndpoints []string

	children, err := daemon.children(container.Name)
	if err != nil {
		return nil, err
	}

	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["bridge"].IPAddress))
		cEndpoint, _ := child.getEndpointInNetwork(n)
		if cEndpoint != nil && cEndpoint.ID() != "" {
			childEndpoints = append(childEndpoints, cEndpoint.ID())
		}
	}

	bridgeSettings := container.NetworkSettings.Networks["bridge"]
	refs := daemon.containerGraph().RefPaths(container.ID)
	for _, ref := range refs {
		if ref.ParentID == "0" {
			continue
		}

		c, err := daemon.Get(ref.ParentID)
		if err != nil {
			logrus.Error(err)
		}

		if c != nil && !daemon.configStore.DisableBridge && container.hostConfig.NetworkMode.IsPrivate() {
			logrus.Debugf("Update /etc/hosts of %s for alias %s with ip %s", c.ID, ref.Name, bridgeSettings.IPAddress)
			sboxOptions = append(sboxOptions, libnetwork.OptionParentUpdate(c.ID, ref.Name, 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
}
Example #27
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
}
Example #28
0
// 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
}
Example #29
0
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
}
Example #30
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
}