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moby--moby/daemon/container_windows.go
Madhu Venugopal e148e763b8 Update native execdriver to exploit libcontainer hooks
Using @mavenugo's patch for enabling the libcontainer pre-start hook to
be used for network namespace initialization (correcting the conflict
with user namespaces); updated the boolean check to the more generic
SupportsHooks() name, and fixed the hook state function signature.

Signed-off-by: Madhu Venugopal <madhu@docker.com>
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
2015-09-16 12:51:14 -04:00

170 lines
4.6 KiB
Go

// +build windows
package daemon
import (
"fmt"
"strings"
"github.com/docker/docker/daemon/execdriver"
)
// DefaultPathEnv is deliberately empty on Windows as the default path will be set by
// the container. Docker has no context of what the default path should be.
const DefaultPathEnv = ""
// Container holds fields specific to the Windows implementation. See
// CommonContainer for standard fields common to all containers.
type Container struct {
CommonContainer
// Fields below here are platform specific.
}
func killProcessDirectly(container *Container) error {
return nil
}
func (container *Container) setupLinkedContainers() ([]string, error) {
return nil, nil
}
func (container *Container) createDaemonEnvironment(linkedEnv []string) []string {
// On Windows, nothing to link. Just return the container environment.
return container.Config.Env
}
func (container *Container) initializeNetworking() error {
return nil
}
func (container *Container) setupWorkingDirectory() error {
return nil
}
func populateCommand(c *Container, env []string) error {
en := &execdriver.Network{
Interface: nil,
}
parts := strings.SplitN(string(c.hostConfig.NetworkMode), ":", 2)
switch parts[0] {
case "none":
case "default", "": // empty string to support existing containers
if !c.Config.NetworkDisabled {
en.Interface = &execdriver.NetworkInterface{
MacAddress: c.Config.MacAddress,
Bridge: c.daemon.configStore.Bridge.VirtualSwitchName,
PortBindings: c.hostConfig.PortBindings,
// TODO Windows. Include IPAddress. There already is a
// property IPAddress on execDrive.CommonNetworkInterface,
// but there is no CLI option in docker to pass through
// an IPAddress on docker run.
}
}
default:
return fmt.Errorf("invalid network mode: %s", c.hostConfig.NetworkMode)
}
pid := &execdriver.Pid{}
// TODO Windows. This can probably be factored out.
pid.HostPid = c.hostConfig.PidMode.IsHost()
// TODO Windows. Resource controls to be implemented later.
resources := &execdriver.Resources{}
// TODO Windows. Further refactoring required (privileged/user)
processConfig := execdriver.ProcessConfig{
Privileged: c.hostConfig.Privileged,
Entrypoint: c.Path,
Arguments: c.Args,
Tty: c.Config.Tty,
User: c.Config.User,
ConsoleSize: c.hostConfig.ConsoleSize,
}
processConfig.Env = env
var layerPaths []string
img, err := c.daemon.graph.Get(c.ImageID)
if err != nil {
return fmt.Errorf("Failed to graph.Get on ImageID %s - %s", c.ImageID, err)
}
for i := img; i != nil && err == nil; i, err = c.daemon.graph.GetParent(i) {
lp, err := c.daemon.driver.Get(i.ID, "")
if err != nil {
return fmt.Errorf("Failed to get layer path from graphdriver %s for ImageID %s - %s", c.daemon.driver.String(), i.ID, err)
}
layerPaths = append(layerPaths, lp)
err = c.daemon.driver.Put(i.ID)
if err != nil {
return fmt.Errorf("Failed to put layer path from graphdriver %s for ImageID %s - %s", c.daemon.driver.String(), i.ID, err)
}
}
m, err := c.daemon.driver.GetMetadata(c.ID)
if err != nil {
return fmt.Errorf("Failed to get layer metadata - %s", err)
}
layerFolder := m["dir"]
// TODO Windows: Factor out remainder of unused fields.
c.command = &execdriver.Command{
ID: c.ID,
Rootfs: c.rootfsPath(),
ReadonlyRootfs: c.hostConfig.ReadonlyRootfs,
InitPath: "/.dockerinit",
WorkingDir: c.Config.WorkingDir,
Network: en,
Pid: pid,
Resources: resources,
CapAdd: c.hostConfig.CapAdd.Slice(),
CapDrop: c.hostConfig.CapDrop.Slice(),
ProcessConfig: processConfig,
ProcessLabel: c.getProcessLabel(),
MountLabel: c.getMountLabel(),
FirstStart: !c.HasBeenStartedBefore,
LayerFolder: layerFolder,
LayerPaths: layerPaths,
}
return nil
}
// GetSize returns real size & virtual size
func (container *Container) getSize() (int64, int64) {
// TODO Windows
return 0, 0
}
// setNetworkNamespaceKey is a no-op on Windows.
func (container *Container) setNetworkNamespaceKey(pid int) error {
return nil
}
// allocateNetwork is a no-op on Windows.
func (container *Container) allocateNetwork() error {
return nil
}
func (container *Container) updateNetwork() error {
return nil
}
func (container *Container) releaseNetwork() {
}
func (container *Container) unmountVolumes(forceSyscall bool) error {
return nil
}
// prepareMountPoints is a no-op on Windows
func (container *Container) prepareMountPoints() error {
return nil
}
// removeMountPoints is a no-op on Windows.
func (container *Container) removeMountPoints(_ bool) error {
return nil
}