mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
730 lines
20 KiB
Go
730 lines
20 KiB
Go
package daemon
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"net"
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/Sirupsen/logrus"
|
|
"github.com/docker/docker/container"
|
|
"github.com/docker/docker/daemon/network"
|
|
derr "github.com/docker/docker/errors"
|
|
"github.com/docker/docker/pkg/stringid"
|
|
"github.com/docker/docker/runconfig"
|
|
containertypes "github.com/docker/engine-api/types/container"
|
|
networktypes "github.com/docker/engine-api/types/network"
|
|
"github.com/docker/go-connections/nat"
|
|
"github.com/docker/libnetwork"
|
|
"github.com/docker/libnetwork/netlabel"
|
|
"github.com/docker/libnetwork/options"
|
|
"github.com/docker/libnetwork/types"
|
|
)
|
|
|
|
var (
|
|
// ErrRootFSReadOnly is returned when a container
|
|
// rootfs is marked readonly.
|
|
ErrRootFSReadOnly = errors.New("container rootfs is marked read-only")
|
|
)
|
|
|
|
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 {
|
|
// 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))
|
|
|
|
// Legacy 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 (daemon *Daemon) updateNetworkSettings(container *container.Container, n libnetwork.Network) error {
|
|
if container.NetworkSettings == nil {
|
|
container.NetworkSettings = &network.Settings{Networks: make(map[string]*networktypes.EndpointSettings)}
|
|
}
|
|
|
|
if !container.HostConfig.NetworkMode.IsHost() && containertypes.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 !containertypes.NetworkMode(sn.Type()).IsPrivate() ||
|
|
!containertypes.NetworkMode(n.Type()).IsPrivate() {
|
|
return runconfig.ErrConflictSharedNetwork
|
|
}
|
|
if containertypes.NetworkMode(sn.Name()).IsNone() ||
|
|
containertypes.NetworkMode(n.Name()).IsNone() {
|
|
return runconfig.ErrConflictNoNetwork
|
|
}
|
|
}
|
|
|
|
if _, ok := container.NetworkSettings.Networks[n.Name()]; !ok {
|
|
container.NetworkSettings.Networks[n.Name()] = new(networktypes.EndpointSettings)
|
|
}
|
|
|
|
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 {
|
|
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, n)
|
|
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)
|
|
}
|
|
|
|
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
|
|
}
|
|
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 (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
|
|
}
|
|
|
|
for n, nConf := range container.NetworkSettings.Networks {
|
|
if err := daemon.connectToNetwork(container, n, nConf, updateSettings); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return container.WriteHostConfig()
|
|
}
|
|
|
|
func (daemon *Daemon) getNetworkSandbox(container *container.Container) libnetwork.Sandbox {
|
|
var sb libnetwork.Sandbox
|
|
daemon.netController.WalkSandboxes(func(s libnetwork.Sandbox) bool {
|
|
if s.ContainerID() == container.ID {
|
|
sb = s
|
|
return true
|
|
}
|
|
return false
|
|
})
|
|
return sb
|
|
}
|
|
|
|
// hasUserDefinedIPAddress returns whether the passed endpoint configuration contains IP address configuration
|
|
func hasUserDefinedIPAddress(epConfig *networktypes.EndpointSettings) bool {
|
|
return epConfig != nil && epConfig.IPAMConfig != nil && (len(epConfig.IPAMConfig.IPv4Address) > 0 || len(epConfig.IPAMConfig.IPv6Address) > 0)
|
|
}
|
|
|
|
// User specified ip address is acceptable only for networks with user specified subnets.
|
|
func validateNetworkingConfig(n libnetwork.Network, epConfig *networktypes.EndpointSettings) error {
|
|
if n == nil || epConfig == nil {
|
|
return nil
|
|
}
|
|
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
|
|
}
|
|
|
|
// cleanOperationalData resets the operational data from the passed endpoint settings
|
|
func cleanOperationalData(es *networktypes.EndpointSettings) {
|
|
es.EndpointID = ""
|
|
es.Gateway = ""
|
|
es.IPAddress = ""
|
|
es.IPPrefixLen = 0
|
|
es.IPv6Gateway = ""
|
|
es.GlobalIPv6Address = ""
|
|
es.GlobalIPv6PrefixLen = 0
|
|
es.MacAddress = ""
|
|
}
|
|
|
|
func (daemon *Daemon) updateNetworkConfig(container *container.Container, idOrName string, endpointConfig *networktypes.EndpointSettings, updateSettings bool) (libnetwork.Network, error) {
|
|
if container.HostConfig.NetworkMode.IsContainer() {
|
|
return nil, runconfig.ErrConflictSharedNetwork
|
|
}
|
|
|
|
if containertypes.NetworkMode(idOrName).IsBridge() &&
|
|
daemon.configStore.DisableBridge {
|
|
container.Config.NetworkDisabled = true
|
|
return nil, nil
|
|
}
|
|
|
|
if !containertypes.NetworkMode(idOrName).IsUserDefined() {
|
|
if hasUserDefinedIPAddress(endpointConfig) {
|
|
return nil, runconfig.ErrUnsupportedNetworkAndIP
|
|
}
|
|
if endpointConfig != nil && len(endpointConfig.Aliases) > 0 {
|
|
return nil, 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)
|
|
}
|
|
}
|
|
|
|
n, err := daemon.FindNetwork(idOrName)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if err := validateNetworkingConfig(n, endpointConfig); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if updateSettings {
|
|
if err := daemon.updateNetworkSettings(container, n); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return n, nil
|
|
}
|
|
|
|
func (daemon *Daemon) connectToNetwork(container *container.Container, idOrName string, endpointConfig *networktypes.EndpointSettings, updateSettings bool) (err error) {
|
|
if endpointConfig == nil {
|
|
endpointConfig = &networktypes.EndpointSettings{}
|
|
}
|
|
n, err := daemon.updateNetworkConfig(container, idOrName, endpointConfig, updateSettings)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if n == nil {
|
|
return nil
|
|
}
|
|
|
|
controller := daemon.netController
|
|
|
|
sb := daemon.getNetworkSandbox(container)
|
|
createOptions, err := container.BuildCreateEndpointOptions(n, endpointConfig, sb)
|
|
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()] = endpointConfig
|
|
|
|
if err := daemon.updateEndpointNetworkSettings(container, n, ep); err != nil {
|
|
return err
|
|
}
|
|
|
|
if sb == nil {
|
|
options, err := daemon.buildSandboxOptions(container, n)
|
|
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)
|
|
}
|
|
|
|
daemon.LogNetworkEventWithAttributes(n, "connect", map[string]string{"container": container.ID})
|
|
return nil
|
|
}
|
|
|
|
// 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)
|
|
}
|
|
|
|
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)
|
|
}
|
|
|
|
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
|
|
}
|
|
|
|
func (daemon *Daemon) initializeNetworking(container *container.Container) error {
|
|
var err error
|
|
|
|
if container.HostConfig.NetworkMode.IsContainer() {
|
|
// we need to get the hosts files from the container to join
|
|
nc, err := daemon.getNetworkedContainer(container.ID, container.HostConfig.NetworkMode.ConnectedContainer())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
container.HostnamePath = nc.HostnamePath
|
|
container.HostsPath = nc.HostsPath
|
|
container.ResolvConfPath = nc.ResolvConfPath
|
|
container.Config.Hostname = nc.Config.Hostname
|
|
container.Config.Domainname = nc.Config.Domainname
|
|
return nil
|
|
}
|
|
|
|
if container.HostConfig.NetworkMode.IsHost() {
|
|
container.Config.Hostname, err = os.Hostname()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if err := daemon.allocateNetwork(container); err != nil {
|
|
return err
|
|
}
|
|
|
|
return container.BuildHostnameFile()
|
|
}
|
|
|
|
func (daemon *Daemon) getNetworkedContainer(containerID, connectedContainerID string) (*container.Container, error) {
|
|
nc, err := daemon.GetContainer(connectedContainerID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if containerID == nc.ID {
|
|
return nil, fmt.Errorf("cannot join own network")
|
|
}
|
|
if !nc.IsRunning() {
|
|
err := fmt.Errorf("cannot join network of a non running container: %s", connectedContainerID)
|
|
return nil, derr.NewRequestConflictError(err)
|
|
}
|
|
if nc.IsRestarting() {
|
|
return nil, errContainerIsRestarting(connectedContainerID)
|
|
}
|
|
return nc, nil
|
|
}
|
|
|
|
func (daemon *Daemon) releaseNetwork(container *container.Container) {
|
|
if container.HostConfig.NetworkMode.IsContainer() || container.Config.NetworkDisabled {
|
|
return
|
|
}
|
|
|
|
sid := container.NetworkSettings.SandboxID
|
|
settings := container.NetworkSettings.Networks
|
|
container.NetworkSettings.Ports = nil
|
|
|
|
if sid == "" || len(settings) == 0 {
|
|
return
|
|
}
|
|
|
|
var networks []libnetwork.Network
|
|
for n, epSettings := range settings {
|
|
if nw, err := daemon.FindNetwork(n); err == nil {
|
|
networks = append(networks, nw)
|
|
}
|
|
cleanOperationalData(epSettings)
|
|
}
|
|
|
|
sb, err := daemon.netController.SandboxByID(sid)
|
|
if err != nil {
|
|
logrus.Warnf("error locating sandbox id %s: %v", sid, err)
|
|
return
|
|
}
|
|
|
|
if err := sb.Delete(); err != nil {
|
|
logrus.Errorf("Error deleting sandbox id %s for container %s: %v", sid, container.ID, err)
|
|
}
|
|
|
|
attributes := map[string]string{
|
|
"container": container.ID,
|
|
}
|
|
for _, nw := range networks {
|
|
daemon.LogNetworkEventWithAttributes(nw, "disconnect", attributes)
|
|
}
|
|
}
|