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Windows libcontainerd implementation
Signed-off-by: John Howard <jhoward@microsoft.com> Signed-off-by: John Starks <jostarks@microsoft.com> Signed-off-by: Darren Stahl <darst@microsoft.com> Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
parent
6eebe85290
commit
94d70d8355
22 changed files with 1419 additions and 167 deletions
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@ -7,7 +7,6 @@ import (
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"os"
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"path/filepath"
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"github.com/docker/docker/daemon/execdriver"
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"github.com/docker/docker/volume"
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containertypes "github.com/docker/engine-api/types/container"
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)
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@ -23,6 +22,12 @@ type Container struct {
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// Fields below here are platform specific.
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}
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// ExitStatus provides exit reasons for a container.
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type ExitStatus struct {
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// The exit code with which the container exited.
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ExitCode int
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}
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// CreateDaemonEnvironment creates a new environment variable slice for this container.
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func (container *Container) CreateDaemonEnvironment(linkedEnv []string) []string {
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// On Windows, nothing to link. Just return the container environment.
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@ -35,7 +40,7 @@ func (container *Container) UnmountIpcMounts(unmount func(pth string) error) {
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}
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// IpcMounts returns the list of Ipc related mounts.
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func (container *Container) IpcMounts() []execdriver.Mount {
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func (container *Container) IpcMounts() []Mount {
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return nil
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}
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@ -45,7 +50,7 @@ func (container *Container) UnmountVolumes(forceSyscall bool, volumeEventLog fun
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}
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// TmpfsMounts returns the list of tmpfs mounts
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func (container *Container) TmpfsMounts() []execdriver.Mount {
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func (container *Container) TmpfsMounts() []Mount {
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return nil
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}
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8
container/mounts_windows.go
Normal file
8
container/mounts_windows.go
Normal file
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@ -0,0 +1,8 @@
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package container
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// Mount contains information for a mount operation.
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type Mount struct {
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Source string `json:"source"`
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Destination string `json:"destination"`
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Writable bool `json:"writable"`
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}
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@ -1,9 +1,7 @@
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package container
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import "github.com/docker/docker/daemon/execdriver"
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// setFromExitStatus is a platform specific helper function to set the state
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// based on the ExitStatus structure.
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func (s *State) setFromExitStatus(exitStatus *execdriver.ExitStatus) {
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func (s *State) setFromExitStatus(exitStatus *ExitStatus) {
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s.ExitCode = exitStatus.ExitCode
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}
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@ -7,8 +7,9 @@ import (
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)
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var (
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defaultPidFile = os.Getenv("programdata") + string(os.PathSeparator) + "docker.pid"
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defaultGraph = os.Getenv("programdata") + string(os.PathSeparator) + "docker"
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defaultPidFile = os.Getenv("programdata") + string(os.PathSeparator) + "docker.pid"
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defaultGraph = os.Getenv("programdata") + string(os.PathSeparator) + "docker"
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defaultExecRoot = defaultGraph
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)
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// bridgeConfig stores all the bridge driver specific
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@ -4,14 +4,9 @@ package daemon
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import (
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"fmt"
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"strings"
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networktypes "github.com/docker/engine-api/types/network"
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"github.com/docker/docker/container"
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"github.com/docker/docker/daemon/execdriver"
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"github.com/docker/docker/daemon/execdriver/windows"
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"github.com/docker/docker/layer"
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networktypes "github.com/docker/engine-api/types/network"
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"github.com/docker/libnetwork"
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)
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@ -29,135 +24,6 @@ func (daemon *Daemon) DisconnectFromNetwork(container *container.Container, n li
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return fmt.Errorf("Windows does not support disconnecting a running container from a network")
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}
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func (daemon *Daemon) populateCommand(c *container.Container, env []string) error {
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en := &execdriver.Network{
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Interface: nil,
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}
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var epList []string
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// Connect all the libnetwork allocated networks to the container
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if c.NetworkSettings != nil {
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for n := range c.NetworkSettings.Networks {
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sn, err := daemon.FindNetwork(n)
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if err != nil {
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continue
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}
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ep, err := c.GetEndpointInNetwork(sn)
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if err != nil {
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continue
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}
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data, err := ep.DriverInfo()
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if err != nil {
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continue
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}
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if data["hnsid"] != nil {
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epList = append(epList, data["hnsid"].(string))
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}
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}
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}
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if daemon.netController == nil {
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parts := strings.SplitN(string(c.HostConfig.NetworkMode), ":", 2)
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switch parts[0] {
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case "none":
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case "default", "": // empty string to support existing containers
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if !c.Config.NetworkDisabled {
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en.Interface = &execdriver.NetworkInterface{
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MacAddress: c.Config.MacAddress,
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Bridge: daemon.configStore.bridgeConfig.Iface,
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PortBindings: c.HostConfig.PortBindings,
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// TODO Windows. Include IPAddress. There already is a
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// property IPAddress on execDrive.CommonNetworkInterface,
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// but there is no CLI option in docker to pass through
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// an IPAddress on docker run.
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}
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}
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default:
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return fmt.Errorf("invalid network mode: %s", c.HostConfig.NetworkMode)
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}
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}
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// TODO Windows. More resource controls to be implemented later.
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resources := &execdriver.Resources{
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CommonResources: execdriver.CommonResources{
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CPUShares: c.HostConfig.CPUShares,
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},
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}
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processConfig := execdriver.ProcessConfig{
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CommonProcessConfig: execdriver.CommonProcessConfig{
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Entrypoint: c.Path,
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Arguments: c.Args,
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Tty: c.Config.Tty,
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},
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ConsoleSize: c.HostConfig.ConsoleSize,
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}
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processConfig.Env = env
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var layerPaths []string
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img, err := daemon.imageStore.Get(c.ImageID)
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if err != nil {
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return fmt.Errorf("Failed to graph.Get on ImageID %s - %s", c.ImageID, err)
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}
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if img.RootFS != nil && img.RootFS.Type == "layers+base" {
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max := len(img.RootFS.DiffIDs)
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for i := 0; i <= max; i++ {
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img.RootFS.DiffIDs = img.RootFS.DiffIDs[:i]
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path, err := layer.GetLayerPath(daemon.layerStore, img.RootFS.ChainID())
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if err != nil {
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return fmt.Errorf("Failed to get layer path from graphdriver %s for ImageID %s - %s", daemon.layerStore, img.RootFS.ChainID(), err)
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}
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// Reverse order, expecting parent most first
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layerPaths = append([]string{path}, layerPaths...)
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}
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}
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m, err := c.RWLayer.Metadata()
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if err != nil {
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return fmt.Errorf("Failed to get layer metadata - %s", err)
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}
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layerFolder := m["dir"]
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var hvPartition bool
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// Work out the isolation (whether it is a hypervisor partition)
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if c.HostConfig.Isolation.IsDefault() {
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// Not specified by caller. Take daemon default
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hvPartition = windows.DefaultIsolation.IsHyperV()
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} else {
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// Take value specified by caller
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hvPartition = c.HostConfig.Isolation.IsHyperV()
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}
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c.Command = &execdriver.Command{
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CommonCommand: execdriver.CommonCommand{
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ID: c.ID,
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Rootfs: c.BaseFS,
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WorkingDir: c.Config.WorkingDir,
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Network: en,
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MountLabel: c.GetMountLabel(),
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Resources: resources,
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ProcessConfig: processConfig,
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ProcessLabel: c.GetProcessLabel(),
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},
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FirstStart: !c.HasBeenStartedBefore,
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LayerFolder: layerFolder,
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LayerPaths: layerPaths,
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Hostname: c.Config.Hostname,
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Isolation: string(c.HostConfig.Isolation),
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ArgsEscaped: c.Config.ArgsEscaped,
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HvPartition: hvPartition,
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EpList: epList,
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}
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return nil
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}
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// getSize returns real size & virtual size
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func (daemon *Daemon) getSize(container *container.Container) (int64, int64) {
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// TODO Windows
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@ -18,11 +18,13 @@ import (
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"github.com/docker/docker/layer"
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"github.com/docker/docker/reference"
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"github.com/docker/docker/runconfig"
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containertypes "github.com/docker/engine-api/types/container"
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// register the windows graph driver
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"github.com/docker/docker/daemon/graphdriver/windows"
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"github.com/docker/docker/pkg/idtools"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/docker/pkg/system"
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"github.com/docker/engine-api/types"
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containertypes "github.com/docker/engine-api/types/container"
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"github.com/docker/libnetwork"
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nwconfig "github.com/docker/libnetwork/config"
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winlibnetwork "github.com/docker/libnetwork/drivers/windows"
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@ -39,7 +41,7 @@ const (
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windowsMaxCPUShares = 10000
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)
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func getBlkioWeightDevices(config *containertypes.HostConfig) ([]*blkiodev.WeightDevice, error) {
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func getBlkioWeightDevices(config *containertypes.HostConfig) ([]blkiodev.WeightDevice, error) {
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return nil, nil
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}
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@ -47,19 +49,19 @@ func parseSecurityOpt(container *container.Container, config *containertypes.Hos
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return nil
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}
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func getBlkioReadIOpsDevices(config *containertypes.HostConfig) ([]*blkiodev.ThrottleDevice, error) {
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func getBlkioReadIOpsDevices(config *containertypes.HostConfig) ([]blkiodev.ThrottleDevice, error) {
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return nil, nil
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}
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func getBlkioWriteIOpsDevices(config *containertypes.HostConfig) ([]*blkiodev.ThrottleDevice, error) {
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func getBlkioWriteIOpsDevices(config *containertypes.HostConfig) ([]blkiodev.ThrottleDevice, error) {
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return nil, nil
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}
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func getBlkioReadBpsDevices(config *containertypes.HostConfig) ([]*blkiodev.ThrottleDevice, error) {
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func getBlkioReadBpsDevices(config *containertypes.HostConfig) ([]blkiodev.ThrottleDevice, error) {
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return nil, nil
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}
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func getBlkioWriteBpsDevices(config *containertypes.HostConfig) ([]*blkiodev.ThrottleDevice, error) {
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func getBlkioWriteBpsDevices(config *containertypes.HostConfig) ([]blkiodev.ThrottleDevice, error) {
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return nil, nil
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}
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@ -287,6 +289,10 @@ func (daemon *Daemon) registerLinks(container *container.Container, hostConfig *
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return nil
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}
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func (daemon *Daemon) cleanupMountsByID(in string) error {
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return nil
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}
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func (daemon *Daemon) cleanupMounts() error {
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return nil
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}
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@ -307,8 +313,19 @@ func setupDaemonRoot(config *Config, rootDir string, rootUID, rootGID int) error
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// conditionalMountOnStart is a platform specific helper function during the
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// container start to call mount.
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func (daemon *Daemon) conditionalMountOnStart(container *container.Container) error {
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// Are we going to run as a Hyper-V container?
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hv := false
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if container.HostConfig.Isolation.IsDefault() {
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// Container is set to use the default, so take the default from the daemon configuration
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hv = daemon.defaultIsolation.IsHyperV()
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} else {
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// Container is requesting an isolation mode. Honour it.
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hv = container.HostConfig.Isolation.IsHyperV()
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}
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// We do not mount if a Hyper-V container
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if !container.HostConfig.Isolation.IsHyperV() {
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if !hv {
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if err := daemon.Mount(container); err != nil {
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return err
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}
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@ -318,11 +335,12 @@ func (daemon *Daemon) conditionalMountOnStart(container *container.Container) er
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// conditionalUnmountOnCleanup is a platform specific helper function called
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// during the cleanup of a container to unmount.
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func (daemon *Daemon) conditionalUnmountOnCleanup(container *container.Container) {
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func (daemon *Daemon) conditionalUnmountOnCleanup(container *container.Container) error {
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// We do not unmount if a Hyper-V container
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if !container.HostConfig.Isolation.IsHyperV() {
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daemon.Unmount(container)
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return daemon.Unmount(container)
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}
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return nil
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}
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func restoreCustomImage(is image.Store, ls layer.Store, rs reference.Store) error {
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@ -404,3 +422,35 @@ func restoreCustomImage(is image.Store, ls layer.Store, rs reference.Store) erro
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func driverOptions(config *Config) []nwconfig.Option {
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return []nwconfig.Option{}
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}
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func (daemon *Daemon) stats(c *container.Container) (*types.StatsJSON, error) {
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return nil, nil
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}
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// setDefaultIsolation determine the default isolation mode for the
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// daemon to run in. This is only applicable on Windows
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func (daemon *Daemon) setDefaultIsolation() error {
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daemon.defaultIsolation = containertypes.Isolation("process")
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for _, option := range daemon.configStore.ExecOptions {
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key, val, err := parsers.ParseKeyValueOpt(option)
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if err != nil {
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return err
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}
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key = strings.ToLower(key)
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switch key {
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case "isolation":
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if !containertypes.Isolation(val).IsValid() {
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return fmt.Errorf("Invalid exec-opt value for 'isolation':'%s'", val)
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}
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if containertypes.Isolation(val).IsHyperV() {
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daemon.defaultIsolation = containertypes.Isolation("hyperv")
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}
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default:
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return fmt.Errorf("Unrecognised exec-opt '%s'\n", key)
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}
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}
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logrus.Infof("Windows default isolation mode: %s", daemon.defaultIsolation)
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return nil
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}
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@ -2,11 +2,13 @@ package daemon
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import (
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"github.com/docker/docker/container"
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"github.com/docker/docker/daemon/execdriver"
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"github.com/docker/engine-api/types"
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"github.com/docker/docker/daemon/exec"
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"github.com/docker/docker/libcontainerd"
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)
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// setPlatformSpecificExecProcessConfig sets platform-specific fields in the
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// ProcessConfig structure. This is a no-op on Windows
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func setPlatformSpecificExecProcessConfig(config *types.ExecConfig, container *container.Container, pc *execdriver.ProcessConfig) {
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func execSetPlatformOpt(c *container.Container, ec *exec.Config, p *libcontainerd.Process) error {
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// Process arguments need to be escaped before sending to OCI.
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// TODO (jstarks): escape the entrypoint too once the tests are fixed to not rely on this behavior
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p.Args = append([]string{p.Args[0]}, escapeArgs(p.Args[1:])...)
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return nil
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}
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|
|
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@ -33,8 +33,8 @@ func (daemon *Daemon) containerInspectPre120(name string) (*types.ContainerJSON,
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func inspectExecProcessConfig(e *exec.Config) *backend.ExecProcessConfig {
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return &backend.ExecProcessConfig{
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Tty: e.ProcessConfig.Tty,
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Entrypoint: e.ProcessConfig.Entrypoint,
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Arguments: e.ProcessConfig.Arguments,
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Tty: e.Tty,
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Entrypoint: e.Entrypoint,
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Arguments: e.Args,
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}
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}
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|
|
13
daemon/monitor_windows.go
Normal file
13
daemon/monitor_windows.go
Normal file
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@ -0,0 +1,13 @@
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package daemon
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import (
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"github.com/docker/docker/container"
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"github.com/docker/docker/libcontainerd"
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)
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// platformConstructExitStatus returns a platform specific exit status structure
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func platformConstructExitStatus(e libcontainerd.StateInfo) *container.ExitStatus {
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return &container.ExitStatus{
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ExitCode: int(e.ExitCode),
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}
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}
|
204
daemon/oci_windows.go
Normal file
204
daemon/oci_windows.go
Normal file
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@ -0,0 +1,204 @@
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package daemon
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import (
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"fmt"
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"strings"
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"syscall"
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"github.com/docker/docker/container"
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"github.com/docker/docker/layer"
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"github.com/docker/docker/libcontainerd"
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"github.com/docker/docker/libcontainerd/windowsoci"
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"github.com/docker/docker/oci"
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)
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func (daemon *Daemon) createSpec(c *container.Container) (*libcontainerd.Spec, error) {
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s := oci.DefaultSpec()
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linkedEnv, err := daemon.setupLinkedContainers(c)
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if err != nil {
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return nil, err
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}
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// TODO Windows - this can be removed. Not used (UID/GID)
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rootUID, rootGID := daemon.GetRemappedUIDGID()
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if err := c.SetupWorkingDirectory(rootUID, rootGID); err != nil {
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return nil, err
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}
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img, err := daemon.imageStore.Get(c.ImageID)
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if err != nil {
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return nil, fmt.Errorf("Failed to graph.Get on ImageID %s - %s", c.ImageID, err)
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}
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// In base spec
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s.Hostname = c.FullHostname()
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// In s.Mounts
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mounts, err := daemon.setupMounts(c)
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if err != nil {
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return nil, err
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}
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for _, mount := range mounts {
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s.Mounts = append(s.Mounts, windowsoci.Mount{
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Source: mount.Source,
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Destination: mount.Destination,
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Readonly: !mount.Writable,
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})
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}
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|
||||
// Are we going to run as a Hyper-V container?
|
||||
hv := false
|
||||
if c.HostConfig.Isolation.IsDefault() {
|
||||
// Container is set to use the default, so take the default from the daemon configuration
|
||||
hv = daemon.defaultIsolation.IsHyperV()
|
||||
} else {
|
||||
// Container is requesting an isolation mode. Honour it.
|
||||
hv = c.HostConfig.Isolation.IsHyperV()
|
||||
}
|
||||
if hv {
|
||||
// TODO We don't yet have the ImagePath hooked up. But set to
|
||||
// something non-nil to pickup in libcontainerd.
|
||||
s.Windows.HvRuntime = &windowsoci.HvRuntime{}
|
||||
}
|
||||
|
||||
// In s.Process
|
||||
if c.Config.ArgsEscaped {
|
||||
s.Process.Args = append([]string{c.Path}, c.Args...)
|
||||
} else {
|
||||
// TODO (jstarks): escape the entrypoint too once the tests are fixed to not rely on this behavior
|
||||
s.Process.Args = append([]string{c.Path}, escapeArgs(c.Args)...)
|
||||
}
|
||||
s.Process.Cwd = c.Config.WorkingDir
|
||||
s.Process.Env = c.CreateDaemonEnvironment(linkedEnv)
|
||||
s.Process.InitialConsoleSize = c.HostConfig.ConsoleSize
|
||||
s.Process.Terminal = c.Config.Tty
|
||||
s.Process.User.User = c.Config.User
|
||||
|
||||
// In spec.Root
|
||||
s.Root.Path = c.BaseFS
|
||||
s.Root.Readonly = c.HostConfig.ReadonlyRootfs
|
||||
|
||||
// In s.Windows
|
||||
s.Windows.FirstStart = !c.HasBeenStartedBefore
|
||||
|
||||
// s.Windows.LayerFolder.
|
||||
m, err := c.RWLayer.Metadata()
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Failed to get layer metadata - %s", err)
|
||||
}
|
||||
s.Windows.LayerFolder = m["dir"]
|
||||
|
||||
// s.Windows.LayerPaths
|
||||
var layerPaths []string
|
||||
if img.RootFS != nil && img.RootFS.Type == "layers+base" {
|
||||
max := len(img.RootFS.DiffIDs)
|
||||
for i := 0; i <= max; i++ {
|
||||
img.RootFS.DiffIDs = img.RootFS.DiffIDs[:i]
|
||||
path, err := layer.GetLayerPath(daemon.layerStore, img.RootFS.ChainID())
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Failed to get layer path from graphdriver %s for ImageID %s - %s", daemon.layerStore, img.RootFS.ChainID(), err)
|
||||
}
|
||||
// Reverse order, expecting parent most first
|
||||
layerPaths = append([]string{path}, layerPaths...)
|
||||
}
|
||||
}
|
||||
s.Windows.LayerPaths = layerPaths
|
||||
|
||||
// In s.Windows.Networking (TP5+ libnetwork way of doing things)
|
||||
// Connect all the libnetwork allocated networks to the container
|
||||
var epList []string
|
||||
if c.NetworkSettings != nil {
|
||||
for n := range c.NetworkSettings.Networks {
|
||||
sn, err := daemon.FindNetwork(n)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
|
||||
ep, err := c.GetEndpointInNetwork(sn)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
|
||||
data, err := ep.DriverInfo()
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
if data["hnsid"] != nil {
|
||||
epList = append(epList, data["hnsid"].(string))
|
||||
}
|
||||
}
|
||||
}
|
||||
s.Windows.Networking = &windowsoci.Networking{
|
||||
EndpointList: epList,
|
||||
}
|
||||
|
||||
// In s.Windows.Networking (TP4 back compat)
|
||||
// TODO Windows: Post TP4 - Remove this along with definitions from spec
|
||||
// and changes to libcontainerd to not read these fields.
|
||||
if daemon.netController == 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 {
|
||||
s.Windows.Networking = &windowsoci.Networking{
|
||||
MacAddress: c.Config.MacAddress,
|
||||
Bridge: daemon.configStore.bridgeConfig.Iface,
|
||||
PortBindings: c.HostConfig.PortBindings,
|
||||
}
|
||||
}
|
||||
default:
|
||||
return nil, fmt.Errorf("invalid network mode: %s", c.HostConfig.NetworkMode)
|
||||
}
|
||||
}
|
||||
|
||||
// In s.Windows.Resources
|
||||
// @darrenstahlmsft implement these resources
|
||||
cpuShares := uint64(c.HostConfig.CPUShares)
|
||||
s.Windows.Resources = &windowsoci.Resources{
|
||||
CPU: &windowsoci.CPU{
|
||||
//TODO Count: ...,
|
||||
//TODO Percent: ...,
|
||||
Shares: &cpuShares,
|
||||
},
|
||||
Memory: &windowsoci.Memory{
|
||||
//TODO Limit: ...,
|
||||
//TODO Reservation: ...,
|
||||
},
|
||||
Network: &windowsoci.Network{
|
||||
//TODO Bandwidth: ...,
|
||||
},
|
||||
Storage: &windowsoci.Storage{
|
||||
//TODO Bps: ...,
|
||||
//TODO Iops: ...,
|
||||
//TODO SandboxSize: ...,
|
||||
},
|
||||
}
|
||||
|
||||
// BUGBUG - Next problem. This was an exec opt. Where do we now get these?
|
||||
// Come back to this when add Xenon support.
|
||||
// var hvPartition bool
|
||||
// // Work out the isolation (whether it is a hypervisor partition)
|
||||
// if c.HostConfig.Isolation.IsDefault() {
|
||||
// // Not specified by caller. Take daemon default
|
||||
// hvPartition = windows.DefaultIsolation.IsHyperV()
|
||||
// } else {
|
||||
// // Take value specified by caller
|
||||
// hvPartition = c.HostConfig.Isolation.IsHyperV()
|
||||
// }
|
||||
|
||||
// Isolation: string(c.HostConfig.Isolation),
|
||||
// HvPartition: hvPartition,
|
||||
// }
|
||||
|
||||
return (*libcontainerd.Spec)(&s), nil
|
||||
}
|
||||
|
||||
func escapeArgs(args []string) []string {
|
||||
escapedArgs := make([]string, len(args))
|
||||
for i, a := range args {
|
||||
escapedArgs[i] = syscall.EscapeArg(a)
|
||||
}
|
||||
return escapedArgs
|
||||
}
|
13
daemon/update_windows.go
Normal file
13
daemon/update_windows.go
Normal file
|
@ -0,0 +1,13 @@
|
|||
// +build windows
|
||||
|
||||
package daemon
|
||||
|
||||
import (
|
||||
"github.com/docker/docker/libcontainerd"
|
||||
"github.com/docker/engine-api/types/container"
|
||||
)
|
||||
|
||||
func toContainerdResources(resources container.Resources) libcontainerd.Resources {
|
||||
var r libcontainerd.Resources
|
||||
return r
|
||||
}
|
|
@ -7,18 +7,22 @@ import (
|
|||
"sort"
|
||||
|
||||
"github.com/docker/docker/container"
|
||||
"github.com/docker/docker/daemon/execdriver"
|
||||
"github.com/docker/docker/volume"
|
||||
)
|
||||
|
||||
// setupMounts configures the mount points for a container by appending each
|
||||
// of the configured mounts on the container to the execdriver mount structure
|
||||
// of the configured mounts on the container to the oci mount structure
|
||||
// which will ultimately be passed into the exec driver during container creation.
|
||||
// It also ensures each of the mounts are lexographically sorted.
|
||||
func (daemon *Daemon) setupMounts(container *container.Container) ([]execdriver.Mount, error) {
|
||||
var mnts []execdriver.Mount
|
||||
for _, mount := range container.MountPoints { // type is volume.MountPoint
|
||||
if err := daemon.lazyInitializeVolume(container.ID, mount); err != nil {
|
||||
|
||||
// BUGBUG TODO Windows containerd. This would be much better if it returned
|
||||
// an array of windowsoci mounts, not container mounts. Then no need to
|
||||
// do multiple transitions.
|
||||
|
||||
func (daemon *Daemon) setupMounts(c *container.Container) ([]container.Mount, error) {
|
||||
var mnts []container.Mount
|
||||
for _, mount := range c.MountPoints { // type is volume.MountPoint
|
||||
if err := daemon.lazyInitializeVolume(c.ID, mount); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// If there is no source, take it from the volume path
|
||||
|
@ -29,7 +33,7 @@ func (daemon *Daemon) setupMounts(container *container.Container) ([]execdriver.
|
|||
if s == "" {
|
||||
return nil, fmt.Errorf("No source for mount name '%s' driver %q destination '%s'", mount.Name, mount.Driver, mount.Destination)
|
||||
}
|
||||
mnts = append(mnts, execdriver.Mount{
|
||||
mnts = append(mnts, container.Mount{
|
||||
Source: s,
|
||||
Destination: mount.Destination,
|
||||
Writable: mount.RW,
|
||||
|
|
|
@ -10,6 +10,7 @@ import (
|
|||
"github.com/Sirupsen/logrus"
|
||||
apiserver "github.com/docker/docker/api/server"
|
||||
"github.com/docker/docker/daemon"
|
||||
"github.com/docker/docker/libcontainerd"
|
||||
"github.com/docker/docker/pkg/mflag"
|
||||
"github.com/docker/docker/pkg/system"
|
||||
)
|
||||
|
@ -57,3 +58,7 @@ func setupConfigReloadTrap(configFile string, flags *mflag.FlagSet, reload func(
|
|||
}
|
||||
}()
|
||||
}
|
||||
|
||||
func (cli *DaemonCli) getPlatformRemoteOptions() []libcontainerd.RemoteOption {
|
||||
return nil
|
||||
}
|
||||
|
|
579
libcontainerd/client_windows.go
Normal file
579
libcontainerd/client_windows.go
Normal file
|
@ -0,0 +1,579 @@
|
|||
package libcontainerd
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"github.com/Microsoft/hcsshim"
|
||||
"github.com/Sirupsen/logrus"
|
||||
)
|
||||
|
||||
type client struct {
|
||||
clientCommon
|
||||
|
||||
// Platform specific properties below here (none presently on Windows)
|
||||
}
|
||||
|
||||
// defaultContainerNAT is the default name of the container NAT device that is
|
||||
// preconfigured on the server. TODO Windows - Remove for TP5 support as not needed.
|
||||
const defaultContainerNAT = "ContainerNAT"
|
||||
|
||||
// Win32 error codes that are used for various workarounds
|
||||
// These really should be ALL_CAPS to match golangs syscall library and standard
|
||||
// Win32 error conventions, but golint insists on CamelCase.
|
||||
const (
|
||||
CoEClassstring = syscall.Errno(0x800401F3) // Invalid class string
|
||||
ErrorNoNetwork = syscall.Errno(1222) // The network is not present or not started
|
||||
ErrorBadPathname = syscall.Errno(161) // The specified path is invalid
|
||||
ErrorInvalidObject = syscall.Errno(0x800710D8) // The object identifier does not represent a valid object
|
||||
)
|
||||
|
||||
type layer struct {
|
||||
ID string
|
||||
Path string
|
||||
}
|
||||
|
||||
type defConfig struct {
|
||||
DefFile string
|
||||
}
|
||||
|
||||
type portBinding struct {
|
||||
Protocol string
|
||||
InternalPort int
|
||||
ExternalPort int
|
||||
}
|
||||
|
||||
type natSettings struct {
|
||||
Name string
|
||||
PortBindings []portBinding
|
||||
}
|
||||
|
||||
type networkConnection struct {
|
||||
NetworkName string
|
||||
//EnableNat bool
|
||||
Nat natSettings
|
||||
}
|
||||
type networkSettings struct {
|
||||
MacAddress string
|
||||
}
|
||||
|
||||
type device struct {
|
||||
DeviceType string
|
||||
Connection interface{}
|
||||
Settings interface{}
|
||||
}
|
||||
|
||||
type mappedDir struct {
|
||||
HostPath string
|
||||
ContainerPath string
|
||||
ReadOnly bool
|
||||
}
|
||||
|
||||
// TODO Windows RTM: @darrenstahlmsft Add ProcessorCount
|
||||
type containerInit struct {
|
||||
SystemType string // HCS requires this to be hard-coded to "Container"
|
||||
Name string // Name of the container. We use the docker ID.
|
||||
Owner string // The management platform that created this container
|
||||
IsDummy bool // Used for development purposes.
|
||||
VolumePath string // Windows volume path for scratch space
|
||||
Devices []device // Devices used by the container
|
||||
IgnoreFlushesDuringBoot bool // Optimization hint for container startup in Windows
|
||||
LayerFolderPath string // Where the layer folders are located
|
||||
Layers []layer // List of storage layers
|
||||
ProcessorWeight uint64 `json:",omitempty"` // CPU Shares 0..10000 on Windows; where 0 will be omitted and HCS will default.
|
||||
ProcessorMaximum int64 `json:",omitempty"` // CPU maximum usage percent 1..100
|
||||
StorageIOPSMaximum uint64 `json:",omitempty"` // Maximum Storage IOPS
|
||||
StorageBandwidthMaximum uint64 `json:",omitempty"` // Maximum Storage Bandwidth in bytes per second
|
||||
StorageSandboxSize uint64 `json:",omitempty"` // Size in bytes that the container system drive should be expanded to if smaller
|
||||
MemoryMaximumInMB int64 `json:",omitempty"` // Maximum memory available to the container in Megabytes
|
||||
HostName string // Hostname
|
||||
MappedDirectories []mappedDir // List of mapped directories (volumes/mounts)
|
||||
SandboxPath string // Location of unmounted sandbox (used for Hyper-V containers)
|
||||
HvPartition bool // True if it a Hyper-V Container
|
||||
EndpointList []string // List of networking endpoints to be attached to container
|
||||
}
|
||||
|
||||
// defaultOwner is a tag passed to HCS to allow it to differentiate between
|
||||
// container creator management stacks. We hard code "docker" in the case
|
||||
// of docker.
|
||||
const defaultOwner = "docker"
|
||||
|
||||
// Create is the entrypoint to create a container from a spec, and if successfully
|
||||
// created, start it too.
|
||||
func (clnt *client) Create(containerID string, spec Spec, options ...CreateOption) error {
|
||||
logrus.Debugln("LCD client.Create() with spec", spec)
|
||||
|
||||
cu := &containerInit{
|
||||
SystemType: "Container",
|
||||
Name: containerID,
|
||||
Owner: defaultOwner,
|
||||
|
||||
VolumePath: spec.Root.Path,
|
||||
IgnoreFlushesDuringBoot: spec.Windows.FirstStart,
|
||||
LayerFolderPath: spec.Windows.LayerFolder,
|
||||
HostName: spec.Hostname,
|
||||
}
|
||||
|
||||
if spec.Windows.Networking != nil {
|
||||
cu.EndpointList = spec.Windows.Networking.EndpointList
|
||||
}
|
||||
|
||||
if spec.Windows.Resources != nil {
|
||||
if spec.Windows.Resources.CPU != nil {
|
||||
if spec.Windows.Resources.CPU.Shares != nil {
|
||||
cu.ProcessorWeight = *spec.Windows.Resources.CPU.Shares
|
||||
}
|
||||
if spec.Windows.Resources.CPU.Percent != nil {
|
||||
cu.ProcessorMaximum = *spec.Windows.Resources.CPU.Percent * 100 // ProcessorMaximum is a value between 1 and 10000
|
||||
}
|
||||
}
|
||||
if spec.Windows.Resources.Memory != nil {
|
||||
if spec.Windows.Resources.Memory.Limit != nil {
|
||||
cu.MemoryMaximumInMB = *spec.Windows.Resources.Memory.Limit / 1024 / 1024
|
||||
}
|
||||
}
|
||||
if spec.Windows.Resources.Storage != nil {
|
||||
if spec.Windows.Resources.Storage.Bps != nil {
|
||||
cu.StorageBandwidthMaximum = *spec.Windows.Resources.Storage.Bps
|
||||
}
|
||||
if spec.Windows.Resources.Storage.Iops != nil {
|
||||
cu.StorageIOPSMaximum = *spec.Windows.Resources.Storage.Iops
|
||||
}
|
||||
if spec.Windows.Resources.Storage.SandboxSize != nil {
|
||||
cu.StorageSandboxSize = *spec.Windows.Resources.Storage.SandboxSize
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TODO Ultimately need to set the path from HvRuntime.ImagePath
|
||||
cu.HvPartition = (spec.Windows.HvRuntime != nil)
|
||||
// if spec.Windows.HvRuntime != nil {
|
||||
// cu.HvPartition = len(spec.Windows.HvRuntime.ImagePath) > 0
|
||||
// }
|
||||
|
||||
if cu.HvPartition {
|
||||
cu.SandboxPath = filepath.Dir(spec.Windows.LayerFolder)
|
||||
} else {
|
||||
cu.VolumePath = spec.Root.Path
|
||||
cu.LayerFolderPath = spec.Windows.LayerFolder
|
||||
}
|
||||
|
||||
for _, layerPath := range spec.Windows.LayerPaths {
|
||||
_, filename := filepath.Split(layerPath)
|
||||
g, err := hcsshim.NameToGuid(filename)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
cu.Layers = append(cu.Layers, layer{
|
||||
ID: g.ToString(),
|
||||
Path: layerPath,
|
||||
})
|
||||
}
|
||||
|
||||
// Add the mounts (volumes, bind mounts etc) to the structure
|
||||
mds := make([]mappedDir, len(spec.Mounts))
|
||||
for i, mount := range spec.Mounts {
|
||||
mds[i] = mappedDir{
|
||||
HostPath: mount.Source,
|
||||
ContainerPath: mount.Destination,
|
||||
ReadOnly: mount.Readonly}
|
||||
}
|
||||
cu.MappedDirectories = mds
|
||||
|
||||
// TODO Windows: vv START OF TP4 BLOCK OF CODE. REMOVE ONCE TP4 IS NO LONGER SUPPORTED
|
||||
if hcsshim.IsTP4() &&
|
||||
spec.Windows.Networking != nil &&
|
||||
spec.Windows.Networking.Bridge != "" {
|
||||
// Enumerate through the port bindings specified by the user and convert
|
||||
// them into the internal structure matching the JSON blob that can be
|
||||
// understood by the HCS.
|
||||
var pbs []portBinding
|
||||
for i, v := range spec.Windows.Networking.PortBindings {
|
||||
proto := strings.ToUpper(i.Proto())
|
||||
if proto != "TCP" && proto != "UDP" {
|
||||
return fmt.Errorf("invalid protocol %s", i.Proto())
|
||||
}
|
||||
|
||||
if len(v) > 1 {
|
||||
return fmt.Errorf("Windows does not support more than one host port in NAT settings")
|
||||
}
|
||||
|
||||
for _, v2 := range v {
|
||||
var (
|
||||
iPort, ePort int
|
||||
err error
|
||||
)
|
||||
if len(v2.HostIP) != 0 {
|
||||
return fmt.Errorf("Windows does not support host IP addresses in NAT settings")
|
||||
}
|
||||
if ePort, err = strconv.Atoi(v2.HostPort); err != nil {
|
||||
return fmt.Errorf("invalid container port %s: %s", v2.HostPort, err)
|
||||
}
|
||||
if iPort, err = strconv.Atoi(i.Port()); err != nil {
|
||||
return fmt.Errorf("invalid internal port %s: %s", i.Port(), err)
|
||||
}
|
||||
if iPort < 0 || iPort > 65535 || ePort < 0 || ePort > 65535 {
|
||||
return fmt.Errorf("specified NAT port is not in allowed range")
|
||||
}
|
||||
pbs = append(pbs,
|
||||
portBinding{ExternalPort: ePort,
|
||||
InternalPort: iPort,
|
||||
Protocol: proto})
|
||||
}
|
||||
}
|
||||
|
||||
dev := device{
|
||||
DeviceType: "Network",
|
||||
Connection: &networkConnection{
|
||||
NetworkName: spec.Windows.Networking.Bridge,
|
||||
Nat: natSettings{
|
||||
Name: defaultContainerNAT,
|
||||
PortBindings: pbs,
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
if spec.Windows.Networking.MacAddress != "" {
|
||||
windowsStyleMAC := strings.Replace(
|
||||
spec.Windows.Networking.MacAddress, ":", "-", -1)
|
||||
dev.Settings = networkSettings{
|
||||
MacAddress: windowsStyleMAC,
|
||||
}
|
||||
}
|
||||
cu.Devices = append(cu.Devices, dev)
|
||||
} else {
|
||||
logrus.Debugln("No network interface")
|
||||
}
|
||||
// TODO Windows: ^^ END OF TP4 BLOCK OF CODE. REMOVE ONCE TP4 IS NO LONGER SUPPORTED
|
||||
|
||||
configurationb, err := json.Marshal(cu)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
configuration := string(configurationb)
|
||||
|
||||
// TODO Windows TP5 timeframe. Remove when TP4 is no longer supported.
|
||||
// The following a workaround for Windows TP4 which has a networking
|
||||
// bug which fairly frequently returns an error. Back off and retry.
|
||||
if !hcsshim.IsTP4() {
|
||||
if err := hcsshim.CreateComputeSystem(containerID, configuration); err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
maxAttempts := 5
|
||||
for i := 1; i <= maxAttempts; i++ {
|
||||
err = hcsshim.CreateComputeSystem(containerID, configuration)
|
||||
if err == nil {
|
||||
break
|
||||
}
|
||||
|
||||
if herr, ok := err.(*hcsshim.HcsError); ok {
|
||||
if herr.Err != syscall.ERROR_NOT_FOUND && // Element not found
|
||||
herr.Err != syscall.ERROR_FILE_NOT_FOUND && // The system cannot find the file specified
|
||||
herr.Err != ErrorNoNetwork && // The network is not present or not started
|
||||
herr.Err != ErrorBadPathname && // The specified path is invalid
|
||||
herr.Err != CoEClassstring && // Invalid class string
|
||||
herr.Err != ErrorInvalidObject { // The object identifier does not represent a valid object
|
||||
logrus.Debugln("Failed to create temporary container ", err)
|
||||
return err
|
||||
}
|
||||
logrus.Warnf("Invoking Windows TP4 retry hack (%d of %d)", i, maxAttempts-1)
|
||||
time.Sleep(50 * time.Millisecond)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Construct a container object for calling start on it.
|
||||
container := &container{
|
||||
containerCommon: containerCommon{
|
||||
process: process{
|
||||
processCommon: processCommon{
|
||||
containerID: containerID,
|
||||
client: clnt,
|
||||
friendlyName: InitFriendlyName,
|
||||
},
|
||||
},
|
||||
processes: make(map[string]*process),
|
||||
},
|
||||
ociSpec: spec,
|
||||
}
|
||||
|
||||
container.options = options
|
||||
for _, option := range options {
|
||||
if err := option.Apply(container); err != nil {
|
||||
logrus.Error(err)
|
||||
}
|
||||
}
|
||||
|
||||
// Call start, and if it fails, delete the container from our
|
||||
// internal structure, and also keep HCS in sync by deleting the
|
||||
// container there.
|
||||
logrus.Debugf("Create() id=%s, Calling start()", containerID)
|
||||
if err := container.start(); err != nil {
|
||||
clnt.deleteContainer(containerID)
|
||||
return err
|
||||
}
|
||||
|
||||
logrus.Debugf("Create() id=%s completed successfully", containerID)
|
||||
return nil
|
||||
|
||||
}
|
||||
|
||||
// AddProcess is the handler for adding a process to an already running
|
||||
// container. It's called through docker exec.
|
||||
func (clnt *client) AddProcess(containerID, processFriendlyName string, procToAdd Process) error {
|
||||
|
||||
clnt.lock(containerID)
|
||||
defer clnt.unlock(containerID)
|
||||
container, err := clnt.getContainer(containerID)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
createProcessParms := hcsshim.CreateProcessParams{
|
||||
EmulateConsole: procToAdd.Terminal,
|
||||
ConsoleSize: procToAdd.InitialConsoleSize,
|
||||
}
|
||||
|
||||
// Take working directory from the process to add if it is defined,
|
||||
// otherwise take from the first process.
|
||||
if procToAdd.Cwd != "" {
|
||||
createProcessParms.WorkingDirectory = procToAdd.Cwd
|
||||
} else {
|
||||
createProcessParms.WorkingDirectory = container.ociSpec.Process.Cwd
|
||||
}
|
||||
|
||||
// Configure the environment for the process
|
||||
createProcessParms.Environment = setupEnvironmentVariables(procToAdd.Env)
|
||||
createProcessParms.CommandLine = strings.Join(procToAdd.Args, " ")
|
||||
|
||||
logrus.Debugf("commandLine: %s", createProcessParms.CommandLine)
|
||||
|
||||
// Start the command running in the container. Note we always tell HCS to
|
||||
// create stdout as it's required regardless of '-i' or '-t' options, so that
|
||||
// docker can always grab the output through logs. We also tell HCS to always
|
||||
// create stdin, even if it's not used - it will be closed shortly. Stderr
|
||||
// is only created if it we're not -t.
|
||||
var stdout, stderr io.ReadCloser
|
||||
var pid uint32
|
||||
iopipe := &IOPipe{Terminal: procToAdd.Terminal}
|
||||
pid, iopipe.Stdin, stdout, stderr, err = hcsshim.CreateProcessInComputeSystem(
|
||||
containerID,
|
||||
true,
|
||||
true,
|
||||
!procToAdd.Terminal,
|
||||
createProcessParms)
|
||||
if err != nil {
|
||||
logrus.Errorf("AddProcess %s CreateProcessInComputeSystem() failed %s", containerID, err)
|
||||
return err
|
||||
}
|
||||
|
||||
// Convert io.ReadClosers to io.Readers
|
||||
if stdout != nil {
|
||||
iopipe.Stdout = openReaderFromPipe(stdout)
|
||||
}
|
||||
if stderr != nil {
|
||||
iopipe.Stderr = openReaderFromPipe(stderr)
|
||||
}
|
||||
|
||||
// Add the process to the containers list of processes
|
||||
container.processes[processFriendlyName] =
|
||||
&process{
|
||||
processCommon: processCommon{
|
||||
containerID: containerID,
|
||||
friendlyName: processFriendlyName,
|
||||
client: clnt,
|
||||
systemPid: pid,
|
||||
},
|
||||
}
|
||||
|
||||
// Make sure the lock is not held while calling back into the daemon
|
||||
clnt.unlock(containerID)
|
||||
|
||||
// Tell the engine to attach streams back to the client
|
||||
if err := clnt.backend.AttachStreams(processFriendlyName, *iopipe); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Lock again so that the defer unlock doesn't fail. (I really don't like this code)
|
||||
clnt.lock(containerID)
|
||||
|
||||
// Spin up a go routine waiting for exit to handle cleanup
|
||||
go container.waitExit(pid, processFriendlyName, false)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Signal handles `docker stop` on Windows. While Linux has support for
|
||||
// the full range of signals, signals aren't really implemented on Windows.
|
||||
// We fake supporting regular stop and -9 to force kill.
|
||||
func (clnt *client) Signal(containerID string, sig int) error {
|
||||
var (
|
||||
cont *container
|
||||
err error
|
||||
)
|
||||
|
||||
// Get the container as we need it to find the pid of the process.
|
||||
clnt.lock(containerID)
|
||||
defer clnt.unlock(containerID)
|
||||
if cont, err = clnt.getContainer(containerID); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
logrus.Debugf("lcd: Signal() containerID=%s sig=%d pid=%d", containerID, sig, cont.systemPid)
|
||||
context := fmt.Sprintf("Signal: sig=%d pid=%d", sig, cont.systemPid)
|
||||
|
||||
if syscall.Signal(sig) == syscall.SIGKILL {
|
||||
// Terminate the compute system
|
||||
if err := hcsshim.TerminateComputeSystem(containerID, hcsshim.TimeoutInfinite, context); err != nil {
|
||||
logrus.Errorf("Failed to terminate %s - %q", containerID, err)
|
||||
}
|
||||
|
||||
} else {
|
||||
// Terminate Process
|
||||
if err = hcsshim.TerminateProcessInComputeSystem(containerID, cont.systemPid); err != nil {
|
||||
logrus.Warnf("Failed to terminate pid %d in %s: %q", cont.systemPid, containerID, err)
|
||||
// Ignore errors
|
||||
err = nil
|
||||
}
|
||||
|
||||
// Shutdown the compute system
|
||||
if err := hcsshim.ShutdownComputeSystem(containerID, hcsshim.TimeoutInfinite, context); err != nil {
|
||||
logrus.Errorf("Failed to shutdown %s - %q", containerID, err)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Resize handles a CLI event to resize an interactive docker run or docker exec
|
||||
// window.
|
||||
func (clnt *client) Resize(containerID, processFriendlyName string, width, height int) error {
|
||||
// Get the libcontainerd container object
|
||||
clnt.lock(containerID)
|
||||
defer clnt.unlock(containerID)
|
||||
cont, err := clnt.getContainer(containerID)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if processFriendlyName == InitFriendlyName {
|
||||
logrus.Debugln("Resizing systemPID in", containerID, cont.process.systemPid)
|
||||
return hcsshim.ResizeConsoleInComputeSystem(containerID, cont.process.systemPid, height, width)
|
||||
}
|
||||
|
||||
for _, p := range cont.processes {
|
||||
if p.friendlyName == processFriendlyName {
|
||||
logrus.Debugln("Resizing exec'd process", containerID, p.systemPid)
|
||||
return hcsshim.ResizeConsoleInComputeSystem(containerID, p.systemPid, height, width)
|
||||
}
|
||||
}
|
||||
|
||||
return fmt.Errorf("Resize could not find containerID %s to resize", containerID)
|
||||
|
||||
}
|
||||
|
||||
// Pause handles pause requests for containers
|
||||
func (clnt *client) Pause(containerID string) error {
|
||||
return errors.New("Windows: Containers cannot be paused")
|
||||
}
|
||||
|
||||
// Resume handles resume requests for containers
|
||||
func (clnt *client) Resume(containerID string) error {
|
||||
return errors.New("Windows: Containers cannot be paused")
|
||||
}
|
||||
|
||||
// Stats handles stats requests for containers
|
||||
func (clnt *client) Stats(containerID string) (*Stats, error) {
|
||||
return nil, errors.New("Windows: Stats not implemented")
|
||||
}
|
||||
|
||||
// Restore is the handler for restoring a container
|
||||
func (clnt *client) Restore(containerID string, unusedOnWindows ...CreateOption) error {
|
||||
|
||||
logrus.Debugf("lcd Restore %s", containerID)
|
||||
return clnt.backend.StateChanged(containerID, StateInfo{
|
||||
State: StateExit,
|
||||
ExitCode: 1 << 31,
|
||||
})
|
||||
|
||||
// var err error
|
||||
// clnt.lock(containerID)
|
||||
// defer clnt.unlock(containerID)
|
||||
|
||||
// logrus.Debugf("restore container %s state %s", containerID)
|
||||
|
||||
// if _, err := clnt.getContainer(containerID); err == nil {
|
||||
// return fmt.Errorf("container %s is aleady active", containerID)
|
||||
// }
|
||||
|
||||
// defer func() {
|
||||
// if err != nil {
|
||||
// clnt.deleteContainer(containerID)
|
||||
// }
|
||||
// }()
|
||||
|
||||
// // ====> BUGBUG Where does linux get the pid from systemPid: pid,
|
||||
// container := &container{
|
||||
// containerCommon: containerCommon{
|
||||
// process: process{
|
||||
// processCommon: processCommon{
|
||||
// containerID: containerID,
|
||||
// client: clnt,
|
||||
// friendlyName: InitFriendlyName,
|
||||
// },
|
||||
// },
|
||||
// processes: make(map[string]*process),
|
||||
// },
|
||||
// }
|
||||
|
||||
// container.systemPid = systemPid(cont)
|
||||
|
||||
// var terminal bool
|
||||
// for _, p := range cont.Processes {
|
||||
// if p.Pid == InitFriendlyName {
|
||||
// terminal = p.Terminal
|
||||
// }
|
||||
// }
|
||||
|
||||
// iopipe, err := container.openFifos(terminal)
|
||||
// if err != nil {
|
||||
// return err
|
||||
// }
|
||||
|
||||
// if err := clnt.backend.AttachStreams(containerID, *iopipe); err != nil {
|
||||
// return err
|
||||
// }
|
||||
|
||||
// clnt.appendContainer(container)
|
||||
|
||||
// err = clnt.backend.StateChanged(containerID, StateInfo{
|
||||
// State: StateRestore,
|
||||
// Pid: container.systemPid,
|
||||
// })
|
||||
|
||||
// if err != nil {
|
||||
// return err
|
||||
// }
|
||||
|
||||
// return nil
|
||||
}
|
||||
|
||||
// GetPidsForContainers is not implemented on Windows.
|
||||
func (clnt *client) GetPidsForContainer(containerID string) ([]int, error) {
|
||||
return nil, errors.New("GetPidsForContainer: GetPidsForContainer() not implemented")
|
||||
}
|
||||
|
||||
func (clnt *client) UpdateResources(containerID string, resources Resources) error {
|
||||
// Updating resource isn't supported on Windows
|
||||
// but we should return nil for enabling updating container
|
||||
return nil
|
||||
}
|
204
libcontainerd/container_windows.go
Normal file
204
libcontainerd/container_windows.go
Normal file
|
@ -0,0 +1,204 @@
|
|||
package libcontainerd
|
||||
|
||||
import (
|
||||
"io"
|
||||
"strings"
|
||||
"syscall"
|
||||
|
||||
"github.com/Microsoft/hcsshim"
|
||||
"github.com/Sirupsen/logrus"
|
||||
)
|
||||
|
||||
type container struct {
|
||||
containerCommon
|
||||
|
||||
// Platform specific fields are below here. There are none presently on Windows.
|
||||
options []CreateOption
|
||||
|
||||
// The ociSpec is required, as client.Create() needs a spec,
|
||||
// but can be called from the RestartManager context which does not
|
||||
// otherwise have access to the Spec
|
||||
ociSpec Spec
|
||||
}
|
||||
|
||||
func (ctr *container) newProcess(friendlyName string) *process {
|
||||
return &process{
|
||||
processCommon: processCommon{
|
||||
containerID: ctr.containerID,
|
||||
friendlyName: friendlyName,
|
||||
client: ctr.client,
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
func (ctr *container) start() error {
|
||||
var err error
|
||||
|
||||
// Start the container
|
||||
logrus.Debugln("Starting container ", ctr.containerID)
|
||||
if err = hcsshim.StartComputeSystem(ctr.containerID); err != nil {
|
||||
logrus.Errorf("Failed to start compute system: %s", err)
|
||||
return err
|
||||
}
|
||||
|
||||
createProcessParms := hcsshim.CreateProcessParams{
|
||||
EmulateConsole: ctr.ociSpec.Process.Terminal,
|
||||
WorkingDirectory: ctr.ociSpec.Process.Cwd,
|
||||
ConsoleSize: ctr.ociSpec.Process.InitialConsoleSize,
|
||||
}
|
||||
|
||||
// Configure the environment for the process
|
||||
createProcessParms.Environment = setupEnvironmentVariables(ctr.ociSpec.Process.Env)
|
||||
createProcessParms.CommandLine = strings.Join(ctr.ociSpec.Process.Args, " ")
|
||||
|
||||
iopipe := &IOPipe{Terminal: ctr.ociSpec.Process.Terminal}
|
||||
|
||||
// Start the command running in the container. Note we always tell HCS to
|
||||
// create stdout as it's required regardless of '-i' or '-t' options, so that
|
||||
// docker can always grab the output through logs. We also tell HCS to always
|
||||
// create stdin, even if it's not used - it will be closed shortly. Stderr
|
||||
// is only created if it we're not -t.
|
||||
var pid uint32
|
||||
var stdout, stderr io.ReadCloser
|
||||
pid, iopipe.Stdin, stdout, stderr, err = hcsshim.CreateProcessInComputeSystem(
|
||||
ctr.containerID,
|
||||
true,
|
||||
true,
|
||||
!ctr.ociSpec.Process.Terminal,
|
||||
createProcessParms)
|
||||
if err != nil {
|
||||
logrus.Errorf("CreateProcessInComputeSystem() failed %s", err)
|
||||
|
||||
// Explicitly terminate the compute system here.
|
||||
if err2 := hcsshim.TerminateComputeSystem(ctr.containerID, hcsshim.TimeoutInfinite, "CreateProcessInComputeSystem failed"); err2 != nil {
|
||||
// Ignore this error, there's not a lot we can do except log it
|
||||
logrus.Warnf("Failed to TerminateComputeSystem after a failed CreateProcessInComputeSystem. Ignoring this.", err2)
|
||||
} else {
|
||||
logrus.Debugln("Cleaned up after failed CreateProcessInComputeSystem by calling TerminateComputeSystem")
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// Convert io.ReadClosers to io.Readers
|
||||
if stdout != nil {
|
||||
iopipe.Stdout = openReaderFromPipe(stdout)
|
||||
}
|
||||
if stderr != nil {
|
||||
iopipe.Stderr = openReaderFromPipe(stderr)
|
||||
}
|
||||
|
||||
// Save the PID
|
||||
logrus.Debugf("Process started - PID %d", pid)
|
||||
ctr.systemPid = uint32(pid)
|
||||
|
||||
// Spin up a go routine waiting for exit to handle cleanup
|
||||
go ctr.waitExit(pid, InitFriendlyName, true)
|
||||
|
||||
ctr.client.appendContainer(ctr)
|
||||
|
||||
if err := ctr.client.backend.AttachStreams(ctr.containerID, *iopipe); err != nil {
|
||||
// OK to return the error here, as waitExit will handle tear-down in HCS
|
||||
return err
|
||||
}
|
||||
|
||||
// Tell the docker engine that the container has started.
|
||||
si := StateInfo{
|
||||
State: StateStart,
|
||||
Pid: ctr.systemPid, // Not sure this is needed? Double-check monitor.go in daemon BUGBUG @jhowardmsft
|
||||
}
|
||||
return ctr.client.backend.StateChanged(ctr.containerID, si)
|
||||
|
||||
}
|
||||
|
||||
// waitExit runs as a goroutine waiting for the process to exit. It's
|
||||
// equivalent to (in the linux containerd world) where events come in for
|
||||
// state change notifications from containerd.
|
||||
func (ctr *container) waitExit(pid uint32, processFriendlyName string, isFirstProcessToStart bool) error {
|
||||
logrus.Debugln("waitExit on pid", pid)
|
||||
|
||||
// Block indefinitely for the process to exit.
|
||||
exitCode, err := hcsshim.WaitForProcessInComputeSystem(ctr.containerID, pid, hcsshim.TimeoutInfinite)
|
||||
if err != nil {
|
||||
if herr, ok := err.(*hcsshim.HcsError); ok && herr.Err != syscall.ERROR_BROKEN_PIPE {
|
||||
logrus.Warnf("WaitForProcessInComputeSystem failed (container may have been killed): %s", err)
|
||||
}
|
||||
// Fall through here, do not return. This ensures we attempt to continue the
|
||||
// shutdown in HCS nad tell the docker engine that the process/container
|
||||
// has exited to avoid a container being dropped on the floor.
|
||||
}
|
||||
|
||||
// Assume the container has exited
|
||||
si := StateInfo{
|
||||
State: StateExit,
|
||||
ExitCode: uint32(exitCode),
|
||||
Pid: pid,
|
||||
ProcessID: processFriendlyName,
|
||||
}
|
||||
|
||||
// But it could have been an exec'd process which exited
|
||||
if !isFirstProcessToStart {
|
||||
si.State = StateExitProcess
|
||||
}
|
||||
|
||||
// If this is the init process, always call into vmcompute.dll to
|
||||
// shutdown the container after we have completed.
|
||||
if isFirstProcessToStart {
|
||||
logrus.Debugf("Shutting down container %s", ctr.containerID)
|
||||
// Explicit timeout here rather than hcsshim.TimeoutInfinte to avoid a
|
||||
// (remote) possibility that ShutdownComputeSystem hangs indefinitely.
|
||||
const shutdownTimeout = 5 * 60 * 1000 // 5 minutes
|
||||
if err := hcsshim.ShutdownComputeSystem(ctr.containerID, shutdownTimeout, "waitExit"); err != nil {
|
||||
if herr, ok := err.(*hcsshim.HcsError); !ok ||
|
||||
(herr.Err != hcsshim.ERROR_SHUTDOWN_IN_PROGRESS &&
|
||||
herr.Err != ErrorBadPathname &&
|
||||
herr.Err != syscall.ERROR_PATH_NOT_FOUND) {
|
||||
logrus.Warnf("Ignoring error from ShutdownComputeSystem %s", err)
|
||||
}
|
||||
} else {
|
||||
logrus.Debugf("Completed shutting down container %s", ctr.containerID)
|
||||
}
|
||||
|
||||
// BUGBUG - Is taking the lock necessary here? Should it just be taken for
|
||||
// the deleteContainer call, not for the restart logic? @jhowardmsft
|
||||
ctr.client.lock(ctr.containerID)
|
||||
defer ctr.client.unlock(ctr.containerID)
|
||||
|
||||
if si.State == StateExit && ctr.restartManager != nil {
|
||||
restart, wait, err := ctr.restartManager.ShouldRestart(uint32(exitCode))
|
||||
if err != nil {
|
||||
logrus.Error(err)
|
||||
} else if restart {
|
||||
si.State = StateRestart
|
||||
ctr.restarting = true
|
||||
go func() {
|
||||
err := <-wait
|
||||
ctr.restarting = false
|
||||
if err != nil {
|
||||
si.State = StateExit
|
||||
if err := ctr.client.backend.StateChanged(ctr.containerID, si); err != nil {
|
||||
logrus.Error(err)
|
||||
}
|
||||
logrus.Error(err)
|
||||
} else {
|
||||
ctr.client.Create(ctr.containerID, ctr.ociSpec, ctr.options...)
|
||||
}
|
||||
}()
|
||||
}
|
||||
}
|
||||
|
||||
// Remove process from list if we have exited
|
||||
// We need to do so here in case the Message Handler decides to restart it.
|
||||
if si.State == StateExit {
|
||||
ctr.client.deleteContainer(ctr.friendlyName)
|
||||
}
|
||||
}
|
||||
|
||||
// Call into the backend to notify it of the state change.
|
||||
logrus.Debugf("waitExit() calling backend.StateChanged %v", si)
|
||||
if err := ctr.client.backend.StateChanged(ctr.containerID, si); err != nil {
|
||||
logrus.Error(err)
|
||||
}
|
||||
|
||||
logrus.Debugln("waitExit() completed OK")
|
||||
return nil
|
||||
}
|
24
libcontainerd/process_windows.go
Normal file
24
libcontainerd/process_windows.go
Normal file
|
@ -0,0 +1,24 @@
|
|||
package libcontainerd
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
// process keeps the state for both main container process and exec process.
|
||||
|
||||
// process keeps the state for both main container process and exec process.
|
||||
type process struct {
|
||||
processCommon
|
||||
}
|
||||
|
||||
func openReaderFromPipe(p io.ReadCloser) io.Reader {
|
||||
r, w := io.Pipe()
|
||||
go func() {
|
||||
if _, err := io.Copy(w, p); err != nil {
|
||||
r.CloseWithError(err)
|
||||
}
|
||||
w.Close()
|
||||
p.Close()
|
||||
}()
|
||||
return r
|
||||
}
|
28
libcontainerd/remote_windows.go
Normal file
28
libcontainerd/remote_windows.go
Normal file
|
@ -0,0 +1,28 @@
|
|||
package libcontainerd
|
||||
|
||||
import "sync"
|
||||
|
||||
type remote struct {
|
||||
}
|
||||
|
||||
func (r *remote) Client(b Backend) (Client, error) {
|
||||
c := &client{
|
||||
clientCommon: clientCommon{
|
||||
backend: b,
|
||||
containerMutexes: make(map[string]*sync.Mutex),
|
||||
containers: make(map[string]*container),
|
||||
},
|
||||
}
|
||||
return c, nil
|
||||
}
|
||||
|
||||
// Cleanup is a no-op on Windows. It is here to implement the same interface
|
||||
// to meet compilation requirements.
|
||||
func (r *remote) Cleanup() {
|
||||
}
|
||||
|
||||
// New creates a fresh instance of libcontainerd remote. This is largely
|
||||
// a no-op on Windows.
|
||||
func New(_ string, _ ...RemoteOption) (Remote, error) {
|
||||
return &remote{}, nil
|
||||
}
|
18
libcontainerd/types_windows.go
Normal file
18
libcontainerd/types_windows.go
Normal file
|
@ -0,0 +1,18 @@
|
|||
package libcontainerd
|
||||
|
||||
import "github.com/docker/docker/libcontainerd/windowsoci"
|
||||
|
||||
// Spec is the base configuration for the container.
|
||||
type Spec windowsoci.WindowsSpec
|
||||
|
||||
// Process contains information to start a specific application inside the container.
|
||||
type Process windowsoci.Process
|
||||
|
||||
// User specifies user information for the containers main process.
|
||||
type User windowsoci.User
|
||||
|
||||
// Stats contains a stats properties from containerd.
|
||||
type Stats struct{}
|
||||
|
||||
// Resources defines updatable container resource values.
|
||||
type Resources struct{}
|
16
libcontainerd/utils_windows.go
Normal file
16
libcontainerd/utils_windows.go
Normal file
|
@ -0,0 +1,16 @@
|
|||
package libcontainerd
|
||||
|
||||
import "strings"
|
||||
|
||||
// setupEnvironmentVariables convert a string array of environment variables
|
||||
// into a map as required by the HCS. Source array is in format [v1=k1] [v2=k2] etc.
|
||||
func setupEnvironmentVariables(a []string) map[string]string {
|
||||
r := make(map[string]string)
|
||||
for _, s := range a {
|
||||
arr := strings.Split(s, "=")
|
||||
if len(arr) == 2 {
|
||||
r[arr[0]] = arr[1]
|
||||
}
|
||||
}
|
||||
return r
|
||||
}
|
188
libcontainerd/windowsoci/oci_windows.go
Normal file
188
libcontainerd/windowsoci/oci_windows.go
Normal file
|
@ -0,0 +1,188 @@
|
|||
package windowsoci
|
||||
|
||||
// This file is a hack - essentially a mirror of OCI spec for Windows.
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
|
||||
"github.com/docker/go-connections/nat"
|
||||
)
|
||||
|
||||
// WindowsSpec is the full specification for Windows containers.
|
||||
type WindowsSpec struct {
|
||||
Spec
|
||||
|
||||
// Windows is platform specific configuration for Windows based containers.
|
||||
Windows Windows `json:"windows"`
|
||||
}
|
||||
|
||||
// Spec is the base configuration for the container. It specifies platform
|
||||
// independent configuration. This information must be included when the
|
||||
// bundle is packaged for distribution.
|
||||
type Spec struct {
|
||||
|
||||
// Version is the version of the specification that is supported.
|
||||
Version string `json:"ociVersion"`
|
||||
// Platform is the host information for OS and Arch.
|
||||
Platform Platform `json:"platform"`
|
||||
// Process is the container's main process.
|
||||
Process Process `json:"process"`
|
||||
// Root is the root information for the container's filesystem.
|
||||
Root Root `json:"root"`
|
||||
// Hostname is the container's host name.
|
||||
Hostname string `json:"hostname,omitempty"`
|
||||
// Mounts profile configuration for adding mounts to the container's filesystem.
|
||||
Mounts []Mount `json:"mounts"`
|
||||
}
|
||||
|
||||
// Windows contains platform specific configuration for Windows based containers.
|
||||
type Windows struct {
|
||||
// Resources contain information for handling resource constraints for the container
|
||||
Resources *Resources `json:"resources,omitempty"`
|
||||
// Networking contains the platform specific network settings for the container.
|
||||
Networking *Networking `json:"networking,omitempty"`
|
||||
// FirstStart is used for an optimization on first boot of Windows
|
||||
FirstStart bool `json:"first_start,omitempty"`
|
||||
// LayerFolder is the path to the current layer folder
|
||||
LayerFolder string `json:"layer_folder,omitempty"`
|
||||
// Layer paths of the parent layers
|
||||
LayerPaths []string `json:"layer_paths,omitempty"`
|
||||
// HvRuntime contains settings specific to Hyper-V containers, omitted if not using Hyper-V isolation
|
||||
HvRuntime *HvRuntime `json:"hv_runtime,omitempty"`
|
||||
}
|
||||
|
||||
// Process contains information to start a specific application inside the container.
|
||||
type Process struct {
|
||||
// Terminal indicates if stderr should NOT be attached for the container.
|
||||
Terminal bool `json:"terminal"`
|
||||
// ConsoleSize contains the initial h,w of the console size
|
||||
InitialConsoleSize [2]int `json:"-"`
|
||||
// User specifies user information for the process.
|
||||
User User `json:"user"`
|
||||
// Args specifies the binary and arguments for the application to execute.
|
||||
Args []string `json:"args"`
|
||||
// Env populates the process environment for the process.
|
||||
Env []string `json:"env,omitempty"`
|
||||
// Cwd is the current working directory for the process and must be
|
||||
// relative to the container's root.
|
||||
Cwd string `json:"cwd"`
|
||||
}
|
||||
|
||||
// User contains the user information for Windows
|
||||
type User struct {
|
||||
User string `json:"user,omitempty"`
|
||||
}
|
||||
|
||||
// Root contains information about the container's root filesystem on the host.
|
||||
type Root struct {
|
||||
// Path is the absolute path to the container's root filesystem.
|
||||
Path string `json:"path"`
|
||||
// Readonly makes the root filesystem for the container readonly before the process is executed.
|
||||
Readonly bool `json:"readonly"`
|
||||
}
|
||||
|
||||
// Platform specifies OS and arch information for the host system that the container
|
||||
// is created for.
|
||||
type Platform struct {
|
||||
// OS is the operating system.
|
||||
OS string `json:"os"`
|
||||
// Arch is the architecture
|
||||
Arch string `json:"arch"`
|
||||
}
|
||||
|
||||
// Mount specifies a mount for a container.
|
||||
type Mount struct {
|
||||
// Destination is the path where the mount will be placed relative to the container's root. The path and child directories MUST exist, a runtime MUST NOT create directories automatically to a mount point.
|
||||
Destination string `json:"destination"`
|
||||
// Type specifies the mount kind.
|
||||
Type string `json:"type"`
|
||||
// Source specifies the source path of the mount. In the case of bind mounts
|
||||
// this would be the file on the host.
|
||||
Source string `json:"source"`
|
||||
// Readonly specifies if the mount should be read-only
|
||||
Readonly bool `json:"readonly"`
|
||||
}
|
||||
|
||||
// HvRuntime contains settings specific to Hyper-V containers
|
||||
type HvRuntime struct {
|
||||
// ImagePath is the path to the Utility VM image for this container
|
||||
ImagePath string `json:"image_path,omitempty"`
|
||||
}
|
||||
|
||||
// Networking contains the platform specific network settings for the container
|
||||
type Networking struct {
|
||||
// TODO Windows TP5. The following three fields are for 'legacy' non-
|
||||
// libnetwork networking through HCS. They can be removed once TP4 is
|
||||
// no longer supported. Also remove in libcontainerd\client_windows.go,
|
||||
// function Create(), and in daemon\oci_windows.go, function CreateSpec()
|
||||
MacAddress string `json:"mac,omitempty"`
|
||||
Bridge string `json:"bridge,omitempty"`
|
||||
PortBindings nat.PortMap `json:"port_bindings,omitempty"`
|
||||
// End of TODO Windows TP5.
|
||||
|
||||
// List of endpoints to be attached to the container
|
||||
EndpointList []string `json:"endpoints,omitempty"`
|
||||
}
|
||||
|
||||
// Storage contains storage resource management settings
|
||||
type Storage struct {
|
||||
// Specifies maximum Iops for the system drive
|
||||
Iops *uint64 `json:"iops,omitempty"`
|
||||
// Specifies maximum bytes per second for the system drive
|
||||
Bps *uint64 `json:"bps,omitempty"`
|
||||
// Sandbox size indicates the size to expand the system drive to if it is currently smaller
|
||||
SandboxSize *uint64 `json:"sandbox_size,omitempty"`
|
||||
}
|
||||
|
||||
// Memory contains memory settings for the container
|
||||
type Memory struct {
|
||||
// Memory limit (in bytes).
|
||||
Limit *int64 `json:"limit,omitempty"`
|
||||
// Memory reservation (in bytes).
|
||||
Reservation *uint64 `json:"reservation,omitempty"`
|
||||
}
|
||||
|
||||
// CPU contains information for cpu resource management
|
||||
type CPU struct {
|
||||
// Number of CPUs available to the container. This is an appoximation for Windows Server Containers.
|
||||
Count *uint64 `json:"count,omitempty"`
|
||||
// CPU shares (relative weight (ratio) vs. other containers with cpu shares). Range is from 1 to 10000.
|
||||
Shares *uint64 `json:"shares,omitempty"`
|
||||
// Percent of available CPUs usable by the container.
|
||||
Percent *int64 `json:"percent,omitempty"`
|
||||
}
|
||||
|
||||
// Network network resource management information
|
||||
type Network struct {
|
||||
// Bandwidth is the maximum egress bandwidth in bytes per second
|
||||
Bandwidth *uint64 `json:"bandwidth,omitempty"`
|
||||
}
|
||||
|
||||
// Resources has container runtime resource constraints
|
||||
// TODO Windows containerd. This structure needs ratifying with the old resources
|
||||
// structure used on Windows and the latest OCI spec.
|
||||
type Resources struct {
|
||||
// Memory restriction configuration
|
||||
Memory *Memory `json:"memory,omitempty"`
|
||||
// CPU resource restriction configuration
|
||||
CPU *CPU `json:"cpu,omitempty"`
|
||||
// Storage restriction configuration
|
||||
Storage *Storage `json:"storage,omitempty"`
|
||||
// Network restriction configuration
|
||||
Network *Network `json:"network,omitempty"`
|
||||
}
|
||||
|
||||
const (
|
||||
// VersionMajor is for an API incompatible changes
|
||||
VersionMajor = 0
|
||||
// VersionMinor is for functionality in a backwards-compatible manner
|
||||
VersionMinor = 3
|
||||
// VersionPatch is for backwards-compatible bug fixes
|
||||
VersionPatch = 0
|
||||
|
||||
// VersionDev indicates development branch. Releases will be empty string.
|
||||
VersionDev = ""
|
||||
)
|
||||
|
||||
// Version is the specification version that the package types support.
|
||||
var Version = fmt.Sprintf("%d.%d.%d%s (Windows)", VersionMajor, VersionMinor, VersionPatch, VersionDev)
|
3
libcontainerd/windowsoci/unsupported.go
Normal file
3
libcontainerd/windowsoci/unsupported.go
Normal file
|
@ -0,0 +1,3 @@
|
|||
// +build !windows
|
||||
|
||||
package windowsoci
|
23
oci/defaults_windows.go
Normal file
23
oci/defaults_windows.go
Normal file
|
@ -0,0 +1,23 @@
|
|||
package oci
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
|
||||
"github.com/docker/docker/libcontainerd/windowsoci"
|
||||
)
|
||||
|
||||
// DefaultSpec returns default spec used by docker.
|
||||
func DefaultSpec() windowsoci.WindowsSpec {
|
||||
s := windowsoci.Spec{
|
||||
Version: windowsoci.Version,
|
||||
Platform: windowsoci.Platform{
|
||||
OS: runtime.GOOS,
|
||||
Arch: runtime.GOARCH,
|
||||
},
|
||||
}
|
||||
|
||||
return windowsoci.WindowsSpec{
|
||||
Spec: s,
|
||||
Windows: windowsoci.Windows{},
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue