func (daemon *Daemon) setupLinkedContainers(container *container.Container) ([]string, error) {
var env []string
children := daemon.children(container)
bridgeSettings := container.NetworkSettings.Networks[runconfig.DefaultDaemonNetworkMode().NetworkName()]
if bridgeSettings == nil || bridgeSettings.EndpointSettings == nil {
return nil, nil
}
for linkAlias, child := range children {
if !child.IsRunning() {
return nil, fmt.Errorf("Cannot link to a non running container: %s AS %s", child.Name, linkAlias)
}
childBridgeSettings := child.NetworkSettings.Networks[runconfig.DefaultDaemonNetworkMode().NetworkName()]
if childBridgeSettings == nil || childBridgeSettings.EndpointSettings == nil {
return nil, fmt.Errorf("container %s not attached to default bridge network", child.ID)
}
link := links.NewLink(
bridgeSettings.IPAddress,
childBridgeSettings.IPAddress,
linkAlias,
child.Config.Env,
child.Config.ExposedPorts,
)
env = append(env, link.ToEnv()...)
}
return env, nil
}
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
}
func networkOptions(dconfig *Config) ([]nwconfig.Option, error) {
options := []nwconfig.Option{}
if dconfig == nil {
return options, nil
}
if strings.TrimSpace(dconfig.DefaultNetwork) != "" {
dn := strings.Split(dconfig.DefaultNetwork, ":")
if len(dn) < 2 {
return nil, fmt.Errorf("default network daemon config must be of the form NETWORKDRIVER:NETWORKNAME")
}
options = append(options, nwconfig.OptionDefaultDriver(dn[0]))
options = append(options, nwconfig.OptionDefaultNetwork(strings.Join(dn[1:], ":")))
} else {
dd := runconfig.DefaultDaemonNetworkMode()
dn := runconfig.DefaultDaemonNetworkMode().NetworkName()
options = append(options, nwconfig.OptionDefaultDriver(string(dd)))
options = append(options, nwconfig.OptionDefaultNetwork(dn))
}
if strings.TrimSpace(dconfig.NetworkKVStore) != "" {
kv := strings.Split(dconfig.NetworkKVStore, ":")
if len(kv) < 2 {
return nil, fmt.Errorf("kv store daemon config must be of the form KV-PROVIDER:KV-URL")
}
options = append(options, nwconfig.OptionKVProvider(kv[0]))
options = append(options, nwconfig.OptionKVProviderURL(strings.Join(kv[1:], ":")))
}
options = append(options, nwconfig.OptionLabels(dconfig.Labels))
return options, nil
}
func (daemon *Daemon) networkOptions(dconfig *Config, pg plugingetter.PluginGetter, activeSandboxes map[string]interface{}) ([]nwconfig.Option, error) {
options := []nwconfig.Option{}
if dconfig == nil {
return options, nil
}
options = append(options, nwconfig.OptionExperimental(dconfig.Experimental))
options = append(options, nwconfig.OptionDataDir(dconfig.Root))
options = append(options, nwconfig.OptionExecRoot(dconfig.GetExecRoot()))
dd := runconfig.DefaultDaemonNetworkMode()
dn := runconfig.DefaultDaemonNetworkMode().NetworkName()
options = append(options, nwconfig.OptionDefaultDriver(string(dd)))
options = append(options, nwconfig.OptionDefaultNetwork(dn))
if strings.TrimSpace(dconfig.ClusterStore) != "" {
kv := strings.Split(dconfig.ClusterStore, "://")
if len(kv) != 2 {
return nil, errors.New("kv store daemon config must be of the form KV-PROVIDER://KV-URL")
}
options = append(options, nwconfig.OptionKVProvider(kv[0]))
options = append(options, nwconfig.OptionKVProviderURL(kv[1]))
}
if len(dconfig.ClusterOpts) > 0 {
options = append(options, nwconfig.OptionKVOpts(dconfig.ClusterOpts))
}
if daemon.discoveryWatcher != nil {
options = append(options, nwconfig.OptionDiscoveryWatcher(daemon.discoveryWatcher))
}
if dconfig.ClusterAdvertise != "" {
options = append(options, nwconfig.OptionDiscoveryAddress(dconfig.ClusterAdvertise))
}
options = append(options, nwconfig.OptionLabels(dconfig.Labels))
options = append(options, driverOptions(dconfig)...)
if daemon.configStore != nil && daemon.configStore.LiveRestoreEnabled && len(activeSandboxes) != 0 {
options = append(options, nwconfig.OptionActiveSandboxes(activeSandboxes))
}
if pg != nil {
options = append(options, nwconfig.OptionPluginGetter(pg))
}
return options, nil
}
func (daemon *Daemon) allocateNetwork(container *container.Container) error {
controller := daemon.netController
if daemon.netController == nil {
return nil
}
// Cleanup any stale sandbox left over due to ungraceful daemon shutdown
if err := controller.SandboxDestroy(container.ID); err != nil {
logrus.Errorf("failed to cleanup up stale network sandbox for container %s", container.ID)
}
updateSettings := false
if len(container.NetworkSettings.Networks) == 0 {
if container.Config.NetworkDisabled || container.HostConfig.NetworkMode.IsContainer() {
return nil
}
err := daemon.updateContainerNetworkSettings(container, nil)
if err != nil {
return err
}
updateSettings = true
}
// always connect default network first since only default
// network mode support link and we need do some setting
// on sandbox initialize for link, but the sandbox only be initialized
// on first network connecting.
defaultNetName := runconfig.DefaultDaemonNetworkMode().NetworkName()
if nConf, ok := container.NetworkSettings.Networks[defaultNetName]; ok {
cleanOperationalData(nConf)
if err := daemon.connectToNetwork(container, defaultNetName, nConf.EndpointSettings, updateSettings); err != nil {
return err
}
}
var (
networks []string
epConfigs []*network.EndpointSettings
)
for n, epConf := range container.NetworkSettings.Networks {
if n == defaultNetName {
continue
}
networks = append(networks, n)
epConfigs = append(epConfigs, epConf)
}
for i, epConf := range epConfigs {
cleanOperationalData(epConf)
if err := daemon.connectToNetwork(container, networks[i], epConf.EndpointSettings, updateSettings); err != nil {
return err
}
}
return container.WriteHostConfig()
}
func (daemon *Daemon) allocateNetwork(container *container.Container) error {
start := time.Now()
controller := daemon.netController
if daemon.netController == nil {
return nil
}
// Cleanup any stale sandbox left over due to ungraceful daemon shutdown
if err := controller.SandboxDestroy(container.ID); err != nil {
logrus.Errorf("failed to cleanup up stale network sandbox for container %s", container.ID)
}
updateSettings := false
if len(container.NetworkSettings.Networks) == 0 {
if container.Config.NetworkDisabled || container.HostConfig.NetworkMode.IsContainer() {
return nil
}
daemon.updateContainerNetworkSettings(container, nil)
updateSettings = true
}
// always connect default network first since only default
// network mode support link and we need do some setting
// on sandbox initialize for link, but the sandbox only be initialized
// on first network connecting.
defaultNetName := runconfig.DefaultDaemonNetworkMode().NetworkName()
if nConf, ok := container.NetworkSettings.Networks[defaultNetName]; ok {
cleanOperationalData(nConf)
if err := daemon.connectToNetwork(container, defaultNetName, nConf.EndpointSettings, updateSettings); err != nil {
return err
}
}
// the intermediate map is necessary because "connectToNetwork" modifies "container.NetworkSettings.Networks"
networks := make(map[string]*network.EndpointSettings)
for n, epConf := range container.NetworkSettings.Networks {
if n == defaultNetName {
continue
}
networks[n] = epConf
}
for netName, epConf := range networks {
cleanOperationalData(epConf)
if err := daemon.connectToNetwork(container, netName, epConf.EndpointSettings, updateSettings); err != nil {
return err
}
}
if err := container.WriteHostConfig(); err != nil {
return err
}
networkActions.WithValues("allocate").UpdateSince(start)
return nil
}
func (daemon *Daemon) networkOptions(dconfig *Config) ([]nwconfig.Option, error) {
options := []nwconfig.Option{}
if dconfig == nil {
return options, nil
}
options = append(options, nwconfig.OptionDataDir(dconfig.Root))
if strings.TrimSpace(dconfig.DefaultNetwork) != "" {
dn := strings.Split(dconfig.DefaultNetwork, ":")
if len(dn) < 2 {
return nil, fmt.Errorf("default network daemon config must be of the form NETWORKDRIVER:NETWORKNAME")
}
options = append(options, nwconfig.OptionDefaultDriver(dn[0]))
options = append(options, nwconfig.OptionDefaultNetwork(strings.Join(dn[1:], ":")))
} else {
dd := runconfig.DefaultDaemonNetworkMode()
dn := runconfig.DefaultDaemonNetworkMode().NetworkName()
options = append(options, nwconfig.OptionDefaultDriver(string(dd)))
options = append(options, nwconfig.OptionDefaultNetwork(dn))
}
if strings.TrimSpace(dconfig.ClusterStore) != "" {
kv := strings.Split(dconfig.ClusterStore, "://")
if len(kv) != 2 {
return nil, fmt.Errorf("kv store daemon config must be of the form KV-PROVIDER://KV-URL")
}
options = append(options, nwconfig.OptionKVProvider(kv[0]))
options = append(options, nwconfig.OptionKVProviderURL(kv[1]))
}
if len(dconfig.ClusterOpts) > 0 {
options = append(options, nwconfig.OptionKVOpts(dconfig.ClusterOpts))
}
if daemon.discoveryWatcher != nil {
options = append(options, nwconfig.OptionDiscoveryWatcher(daemon.discoveryWatcher))
}
if dconfig.ClusterAdvertise != "" {
options = append(options, nwconfig.OptionDiscoveryAddress(dconfig.ClusterAdvertise))
}
options = append(options, nwconfig.OptionLabels(dconfig.Labels))
options = append(options, driverOptions(dconfig)...)
return options, nil
}
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
}
func (daemon *Daemon) updateEndpointNetworkSettings(container *container.Container, n libnetwork.Network, ep libnetwork.Endpoint) error {
if err := container.BuildEndpointInfo(n, ep); err != nil {
return err
}
if container.HostConfig.NetworkMode == runconfig.DefaultDaemonNetworkMode() {
container.NetworkSettings.Bridge = daemon.configStore.bridgeConfig.Iface
}
return nil
}
// UpdateNetwork is used to update the container's network (e.g. when linked containers
// get removed/unlinked).
func (daemon *Daemon) updateNetwork(container *container.Container) error {
var (
start = time.Now()
ctrl = daemon.netController
sid = container.NetworkSettings.SandboxID
)
sb, err := ctrl.SandboxByID(sid)
if err != nil {
return fmt.Errorf("error locating sandbox id %s: %v", sid, err)
}
// Find if container is connected to the default bridge network
var n libnetwork.Network
for name := range container.NetworkSettings.Networks {
sn, err := daemon.FindNetwork(name)
if err != nil {
continue
}
if sn.Name() == runconfig.DefaultDaemonNetworkMode().NetworkName() {
n = sn
break
}
}
if n == nil {
// Not connected to the default bridge network; Nothing to do
return nil
}
options, err := daemon.buildSandboxOptions(container)
if err != nil {
return fmt.Errorf("Update network failed: %v", err)
}
if err := sb.Refresh(options...); err != nil {
return fmt.Errorf("Update network failed: Failure in refresh sandbox %s: %v", sid, err)
}
networkActions.WithValues("update").UpdateSince(start)
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
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
}
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
}
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
}
func isLinkable(child *container.Container) bool {
// A container is linkable only if it belongs to the default network
_, ok := child.NetworkSettings.Networks[runconfig.DefaultDaemonNetworkMode().NetworkName()]
return ok
}
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
}
