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Move netmode validation to server

Signed-off-by: John Howard <jhoward@microsoft.com>
This commit is contained in:
John Howard 2015-07-09 15:12:36 -07:00
parent 650feb29f1
commit f6ed590596
15 changed files with 300 additions and 187 deletions

View file

@ -148,7 +148,7 @@ RUN set -x \
&& rm -rf "$GOPATH"
# Get the "docker-py" source so we can run their integration tests
ENV DOCKER_PY_COMMIT 8a87001d09852058f08a807ab6e8491d57ca1e88
ENV DOCKER_PY_COMMIT 139850f3f3b17357bab5ba3edfb745fb14043764
RUN git clone https://github.com/docker/docker-py.git /docker-py \
&& cd /docker-py \
&& git checkout -q $DOCKER_PY_COMMIT

View file

@ -264,6 +264,10 @@ func (container *Container) Start() (err error) {
return err
}
// Make sure NetworkMode has an acceptable value. We do this to ensure
// backwards API compatibility.
container.hostConfig = runconfig.SetDefaultNetModeIfBlank(container.hostConfig)
if err := container.initializeNetworking(); err != nil {
return err
}

View file

@ -913,11 +913,6 @@ func (container *Container) configureNetwork(networkName, service, networkDriver
func (container *Container) initializeNetworking() error {
var err error
// Make sure NetworkMode has an acceptable value before
// initializing networking.
if container.hostConfig.NetworkMode == runconfig.NetworkMode("") {
container.hostConfig.NetworkMode = runconfig.NetworkMode("default")
}
if container.hostConfig.NetworkMode.IsContainer() {
// we need to get the hosts files from the container to join
nc, err := container.getNetworkedContainer()

View file

@ -0,0 +1,162 @@
package main
import (
"os/exec"
"strings"
"github.com/docker/docker/runconfig"
"github.com/go-check/check"
)
// GH14530. Validates combinations of --net= with other options
// stringCheckPS is how the output of PS starts in order to validate that
// the command executed in a container did really run PS correctly.
const stringCheckPS = "PID USER"
// checkContains is a helper function that validates a command output did
// contain what was expected.
func checkContains(expected string, out string, c *check.C) {
if !strings.Contains(out, expected) {
c.Fatalf("Expected '%s', got '%s'", expected, out)
}
}
func (s *DockerSuite) TestNetHostname(c *check.C) {
var (
out string
err error
runCmd *exec.Cmd
)
runCmd = exec.Command(dockerBinary, "run", "-h=name", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatalf(out, err)
}
checkContains(stringCheckPS, out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=host", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatalf(out, err)
}
checkContains(stringCheckPS, out, c)
runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=bridge", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatalf(out, err)
}
checkContains(stringCheckPS, out, c)
runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=none", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatalf(out, err)
}
checkContains(stringCheckPS, out, c)
runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=host", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkHostname.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "-h=name", "--net=container:other", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err, c)
}
checkContains(runconfig.ErrConflictNetworkHostname.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=container", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err, c)
}
checkContains("--net: invalid net mode: invalid container format container:<name|id>", out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=weird", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains("invalid --net: weird", out, c)
}
func (s *DockerSuite) TestConflictContainerNetworkAndLinks(c *check.C) {
var (
out string
err error
runCmd *exec.Cmd
)
runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--link=zip:zap", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictContainerNetworkAndLinks.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=host", "--link=zip:zap", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictHostNetworkAndLinks.Error(), out, c)
}
func (s *DockerSuite) TestConflictNetworkModeAndOptions(c *check.C) {
var (
out string
err error
runCmd *exec.Cmd
)
runCmd = exec.Command(dockerBinary, "run", "--net=host", "--dns=8.8.8.8", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkAndDNS.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--dns=8.8.8.8", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkAndDNS.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=host", "--add-host=name:8.8.8.8", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkHosts.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--add-host=name:8.8.8.8", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkHosts.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=host", "--mac-address=92:d0:c6:0a:29:33", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictContainerNetworkAndMac.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--mac-address=92:d0:c6:0a:29:33", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictContainerNetworkAndMac.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "-P", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkPublishPorts.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "-p", "8080", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkPublishPorts.Error(), out, c)
runCmd = exec.Command(dockerBinary, "run", "--net=container:other", "--expose", "8000-9000", "busybox", "ps")
if out, _, err = runCommandWithOutput(runCmd); err == nil {
c.Fatalf(out, err)
}
checkContains(runconfig.ErrConflictNetworkExposePorts.Error(), out, c)
}

View file

@ -158,44 +158,6 @@ type Config struct {
Labels map[string]string // List of labels set to this container
}
// ContainerConfigWrapper is a Config wrapper that hold the container Config (portable)
// and the corresponding HostConfig (non-portable).
type ContainerConfigWrapper struct {
*Config
InnerHostConfig *HostConfig `json:"HostConfig,omitempty"`
Cpuset string `json:",omitempty"` // Deprecated. Exported for backwards compatibility.
*HostConfig // Deprecated. Exported to read attrubutes from json that are not in the inner host config structure.
}
// GetHostConfig gets the HostConfig of the Config.
// It's mostly there to handle Deprecated fields of the ContainerConfigWrapper
func (w *ContainerConfigWrapper) GetHostConfig() *HostConfig {
hc := w.HostConfig
if hc == nil && w.InnerHostConfig != nil {
hc = w.InnerHostConfig
} else if w.InnerHostConfig != nil {
if hc.Memory != 0 && w.InnerHostConfig.Memory == 0 {
w.InnerHostConfig.Memory = hc.Memory
}
if hc.MemorySwap != 0 && w.InnerHostConfig.MemorySwap == 0 {
w.InnerHostConfig.MemorySwap = hc.MemorySwap
}
if hc.CPUShares != 0 && w.InnerHostConfig.CPUShares == 0 {
w.InnerHostConfig.CPUShares = hc.CPUShares
}
hc = w.InnerHostConfig
}
if hc != nil && w.Cpuset != "" && hc.CpusetCpus == "" {
hc.CpusetCpus = w.Cpuset
}
return hc
}
// DecodeContainerConfig decodes a json encoded config into a ContainerConfigWrapper
// struct and returns both a Config and an HostConfig struct
// Be aware this function is not checking whether the resulted structs are nil,
@ -208,5 +170,13 @@ func DecodeContainerConfig(src io.Reader) (*Config, *HostConfig, error) {
return nil, nil, err
}
return w.Config, w.GetHostConfig(), nil
hc := w.getHostConfig()
// Certain parameters need daemon-side validation that cannot be done
// on the client, as only the daemon knows what is valid for the platform.
if err := ValidateNetMode(w.Config, hc); err != nil {
return nil, nil, err
}
return w.Config, hc, nil
}

47
runconfig/config_unix.go Normal file
View file

@ -0,0 +1,47 @@
// +build !windows
package runconfig
// ContainerConfigWrapper is a Config wrapper that hold the container Config (portable)
// and the corresponding HostConfig (non-portable).
type ContainerConfigWrapper struct {
*Config
InnerHostConfig *HostConfig `json:"HostConfig,omitempty"`
Cpuset string `json:",omitempty"` // Deprecated. Exported for backwards compatibility.
*HostConfig // Deprecated. Exported to read attributes from json that are not in the inner host config structure.
}
// getHostConfig gets the HostConfig of the Config.
// It's mostly there to handle Deprecated fields of the ContainerConfigWrapper
func (w *ContainerConfigWrapper) getHostConfig() *HostConfig {
hc := w.HostConfig
if hc == nil && w.InnerHostConfig != nil {
hc = w.InnerHostConfig
} else if w.InnerHostConfig != nil {
if hc.Memory != 0 && w.InnerHostConfig.Memory == 0 {
w.InnerHostConfig.Memory = hc.Memory
}
if hc.MemorySwap != 0 && w.InnerHostConfig.MemorySwap == 0 {
w.InnerHostConfig.MemorySwap = hc.MemorySwap
}
if hc.CPUShares != 0 && w.InnerHostConfig.CPUShares == 0 {
w.InnerHostConfig.CPUShares = hc.CPUShares
}
if hc.CpusetCpus != "" && w.InnerHostConfig.CpusetCpus == "" {
w.InnerHostConfig.CpusetCpus = hc.CpusetCpus
}
hc = w.InnerHostConfig
}
if hc != nil && w.Cpuset != "" && hc.CpusetCpus == "" {
hc.CpusetCpus = w.Cpuset
}
// Make sure NetworkMode has an acceptable value. We do this to ensure
// backwards compatible API behaviour.
hc = SetDefaultNetModeIfBlank(hc)
return hc
}

View file

@ -0,0 +1,13 @@
package runconfig
// ContainerConfigWrapper is a Config wrapper that hold the container Config (portable)
// and the corresponding HostConfig (non-portable).
type ContainerConfigWrapper struct {
*Config
HostConfig *HostConfig `json:"HostConfig,omitempty"`
}
// getHostConfig gets the HostConfig of the Config.
func (w *ContainerConfigWrapper) getHostConfig() *HostConfig {
return w.HostConfig
}

View file

@ -298,16 +298,6 @@ type HostConfig struct {
ConsoleSize [2]int // Initial console size on Windows
}
// MergeConfigs merges the specified container Config and HostConfig.
// It creates a ContainerConfigWrapper.
func MergeConfigs(config *Config, hostConfig *HostConfig) *ContainerConfigWrapper {
return &ContainerConfigWrapper{
config,
hostConfig,
"", nil,
}
}
// DecodeHostConfig creates a HostConfig based on the specified Reader.
// It assumes the content of the reader will be JSON, and decodes it.
func DecodeHostConfig(src io.Reader) (*HostConfig, error) {
@ -318,7 +308,19 @@ func DecodeHostConfig(src io.Reader) (*HostConfig, error) {
return nil, err
}
hc := w.GetHostConfig()
hc := w.getHostConfig()
return hc, nil
}
// SetDefaultNetModeIfBlank changes the NetworkMode in a HostConfig structure
// to default if it is not populated. This ensures backwards compatibility after
// the validation of the network mode was moved from the docker CLI to the
// docker daemon.
func SetDefaultNetModeIfBlank(hc *HostConfig) *HostConfig {
if hc != nil {
if hc.NetworkMode == NetworkMode("") {
hc.NetworkMode = NetworkMode("default")
}
}
return hc
}

View file

@ -1,3 +1,5 @@
// +build !windows
package runconfig
import (
@ -8,6 +10,7 @@ import (
"testing"
)
// TODO Windows: This will need addressing for a Windows daemon.
func TestNetworkModeTest(t *testing.T) {
networkModes := map[NetworkMode][]bool{
// private, bridge, host, container, none, default

View file

@ -58,3 +58,13 @@ func (n NetworkMode) IsContainer() bool {
func (n NetworkMode) IsNone() bool {
return n == "none"
}
// MergeConfigs merges the specified container Config and HostConfig.
// It creates a ContainerConfigWrapper.
func MergeConfigs(config *Config, hostConfig *HostConfig) *ContainerConfigWrapper {
return &ContainerConfigWrapper{
config,
hostConfig,
"", nil,
}
}

View file

@ -18,3 +18,12 @@ func (n NetworkMode) NetworkName() string {
}
return ""
}
// MergeConfigs merges the specified container Config and HostConfig.
// It creates a ContainerConfigWrapper.
func MergeConfigs(config *Config, hostConfig *HostConfig) *ContainerConfigWrapper {
return &ContainerConfigWrapper{
config,
hostConfig,
}
}

View file

@ -31,20 +31,6 @@ var (
ErrConflictNetworkExposePorts = fmt.Errorf("Conflicting options: --expose and the network mode (--expose)")
)
// validateNM is the set of fields passed to validateNetMode()
type validateNM struct {
netMode NetworkMode
flHostname *string
flLinks opts.ListOpts
flDNS opts.ListOpts
flExtraHosts opts.ListOpts
flMacAddress *string
flPublish opts.ListOpts
flPublishAll *bool
flExpose opts.ListOpts
flVolumeDriver string
}
// Parse parses the specified args for the specified command and generates a Config,
// a HostConfig and returns them with the specified command.
// If the specified args are not valid, it will return an error.
@ -143,27 +129,6 @@ func Parse(cmd *flag.FlagSet, args []string) (*Config, *HostConfig, *flag.FlagSe
attachStderr = flAttach.Get("stderr")
)
netMode, err := parseNetMode(*flNetMode)
if err != nil {
return nil, nil, cmd, fmt.Errorf("--net: invalid net mode: %v", err)
}
vals := validateNM{
netMode: netMode,
flHostname: flHostname,
flLinks: flLinks,
flDNS: flDNS,
flExtraHosts: flExtraHosts,
flMacAddress: flMacAddress,
flPublish: flPublish,
flPublishAll: flPublishAll,
flExpose: flExpose,
}
if err := validateNetMode(&vals); err != nil {
return nil, nil, cmd, err
}
// Validate the input mac address
if *flMacAddress != "" {
if _, err := opts.ValidateMACAddress(*flMacAddress); err != nil {
@ -371,7 +336,7 @@ func Parse(cmd *flag.FlagSet, args []string) (*Config, *HostConfig, *flag.FlagSe
DNSSearch: flDNSSearch.GetAll(),
ExtraHosts: flExtraHosts.GetAll(),
VolumesFrom: flVolumesFrom.GetAll(),
NetworkMode: netMode,
NetworkMode: NetworkMode(*flNetMode),
IpcMode: ipcMode,
PidMode: pidMode,
UTSMode: utsMode,

View file

@ -204,77 +204,6 @@ func TestParseLxcConfOpt(t *testing.T) {
}
func TestNetHostname(t *testing.T) {
if _, _, _, err := parseRun([]string{"-h=name", "img", "cmd"}); err != nil {
t.Fatalf("Unexpected error: %s", err)
}
if _, _, _, err := parseRun([]string{"--net=host", "img", "cmd"}); err != nil {
t.Fatalf("Unexpected error: %s", err)
}
if _, _, _, err := parseRun([]string{"-h=name", "--net=bridge", "img", "cmd"}); err != nil {
t.Fatalf("Unexpected error: %s", err)
}
if _, _, _, err := parseRun([]string{"-h=name", "--net=none", "img", "cmd"}); err != nil {
t.Fatalf("Unexpected error: %s", err)
}
if _, _, _, err := parseRun([]string{"-h=name", "--net=host", "img", "cmd"}); err != ErrConflictNetworkHostname {
t.Fatalf("Expected error ErrConflictNetworkHostname, got: %s", err)
}
if _, _, _, err := parseRun([]string{"-h=name", "--net=container:other", "img", "cmd"}); err != ErrConflictNetworkHostname {
t.Fatalf("Expected error ErrConflictNetworkHostname, got: %s", err)
}
if _, _, _, err := parseRun([]string{"--net=container", "img", "cmd"}); err == nil || err.Error() != "--net: invalid net mode: invalid container format container:<name|id>" {
t.Fatalf("Expected error with --net=container, got : %v", err)
}
if _, _, _, err := parseRun([]string{"--net=weird", "img", "cmd"}); err == nil || err.Error() != "--net: invalid net mode: invalid --net: weird" {
t.Fatalf("Expected error with --net=weird, got: %s", err)
}
}
func TestConflictContainerNetworkAndLinks(t *testing.T) {
if _, _, _, err := parseRun([]string{"--net=container:other", "--link=zip:zap", "img", "cmd"}); err != ErrConflictContainerNetworkAndLinks {
t.Fatalf("Expected error ErrConflictContainerNetworkAndLinks, got: %s", err)
}
if _, _, _, err := parseRun([]string{"--net=host", "--link=zip:zap", "img", "cmd"}); err != ErrConflictHostNetworkAndLinks {
t.Fatalf("Expected error ErrConflictHostNetworkAndLinks, got: %s", err)
}
}
func TestConflictNetworkModeAndOptions(t *testing.T) {
if _, _, _, err := parseRun([]string{"--net=host", "--dns=8.8.8.8", "img", "cmd"}); err != ErrConflictNetworkAndDNS {
t.Fatalf("Expected error ErrConflictNetworkAndDns, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=container:other", "--dns=8.8.8.8", "img", "cmd"}); err != ErrConflictNetworkAndDNS {
t.Fatalf("Expected error ErrConflictNetworkAndDns, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=host", "--add-host=name:8.8.8.8", "img", "cmd"}); err != ErrConflictNetworkHosts {
t.Fatalf("Expected error ErrConflictNetworkAndDns, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=container:other", "--add-host=name:8.8.8.8", "img", "cmd"}); err != ErrConflictNetworkHosts {
t.Fatalf("Expected error ErrConflictNetworkAndDns, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=host", "--mac-address=92:d0:c6:0a:29:33", "img", "cmd"}); err != ErrConflictContainerNetworkAndMac {
t.Fatalf("Expected error ErrConflictContainerNetworkAndMac, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=container:other", "--mac-address=92:d0:c6:0a:29:33", "img", "cmd"}); err != ErrConflictContainerNetworkAndMac {
t.Fatalf("Expected error ErrConflictContainerNetworkAndMac, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=container:other", "-P", "img", "cmd"}); err != ErrConflictNetworkPublishPorts {
t.Fatalf("Expected error ErrConflictNetworkPublishPorts, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=container:other", "-p", "8080", "img", "cmd"}); err != ErrConflictNetworkPublishPorts {
t.Fatalf("Expected error ErrConflictNetworkPublishPorts, got %s", err)
}
if _, _, _, err := parseRun([]string{"--net=container:other", "--expose", "8000-9000", "img", "cmd"}); err != ErrConflictNetworkExposePorts {
t.Fatalf("Expected error ErrConflictNetworkExposePorts, got %s", err)
}
}
// Simple parse with MacAddress validatation
func TestParseWithMacAddress(t *testing.T) {
invalidMacAddress := "--mac-address=invalidMacAddress"

View file

@ -7,51 +7,53 @@ import (
"strings"
)
func parseNetMode(netMode string) (NetworkMode, error) {
parts := strings.Split(netMode, ":")
// ValidateNetMode ensures that the various combinations of requested
// network settings are valid.
func ValidateNetMode(c *Config, hc *HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
parts := strings.Split(string(hc.NetworkMode), ":")
switch mode := parts[0]; mode {
case "default", "bridge", "none", "host":
case "container":
if len(parts) < 2 || parts[1] == "" {
return "", fmt.Errorf("invalid container format container:<name|id>")
return fmt.Errorf("--net: invalid net mode: invalid container format container:<name|id>")
}
default:
return "", fmt.Errorf("invalid --net: %s", netMode)
return fmt.Errorf("invalid --net: %s", hc.NetworkMode)
}
return NetworkMode(netMode), nil
}
func validateNetMode(vals *validateNM) error {
if (vals.netMode.IsHost() || vals.netMode.IsContainer()) && *vals.flHostname != "" {
if (hc.NetworkMode.IsHost() || hc.NetworkMode.IsContainer()) && c.Hostname != "" {
return ErrConflictNetworkHostname
}
if vals.netMode.IsHost() && vals.flLinks.Len() > 0 {
if hc.NetworkMode.IsHost() && len(hc.Links) > 0 {
return ErrConflictHostNetworkAndLinks
}
if vals.netMode.IsContainer() && vals.flLinks.Len() > 0 {
if hc.NetworkMode.IsContainer() && len(hc.Links) > 0 {
return ErrConflictContainerNetworkAndLinks
}
if (vals.netMode.IsHost() || vals.netMode.IsContainer()) && vals.flDNS.Len() > 0 {
if (hc.NetworkMode.IsHost() || hc.NetworkMode.IsContainer()) && len(hc.DNS) > 0 {
return ErrConflictNetworkAndDNS
}
if (vals.netMode.IsContainer() || vals.netMode.IsHost()) && vals.flExtraHosts.Len() > 0 {
if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && len(hc.ExtraHosts) > 0 {
return ErrConflictNetworkHosts
}
if (vals.netMode.IsContainer() || vals.netMode.IsHost()) && *vals.flMacAddress != "" {
if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && c.MacAddress != "" {
return ErrConflictContainerNetworkAndMac
}
if vals.netMode.IsContainer() && (vals.flPublish.Len() > 0 || *vals.flPublishAll == true) {
if hc.NetworkMode.IsContainer() && (len(hc.PortBindings) > 0 || hc.PublishAllPorts == true) {
return ErrConflictNetworkPublishPorts
}
if vals.netMode.IsContainer() && vals.flExpose.Len() > 0 {
if hc.NetworkMode.IsContainer() && len(c.ExposedPorts) > 0 {
return ErrConflictNetworkExposePorts
}
return nil

View file

@ -5,16 +5,18 @@ import (
"strings"
)
func parseNetMode(netMode string) (NetworkMode, error) {
parts := strings.Split(netMode, ":")
// ValidateNetMode ensures that the various combinations of requested
// network settings are valid.
func ValidateNetMode(c *Config, hc *HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
parts := strings.Split(string(hc.NetworkMode), ":")
switch mode := parts[0]; mode {
case "default", "none":
default:
return "", fmt.Errorf("invalid --net: %s", netMode)
return fmt.Errorf("invalid --net: %s", hc.NetworkMode)
}
return NetworkMode(netMode), nil
}
func validateNetMode(vals *validateNM) error {
return nil
}