146 lines
4.8 KiB
Go
146 lines
4.8 KiB
Go
// +build windows
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package container
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import (
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"fmt"
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"os"
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"path/filepath"
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containertypes "github.com/docker/docker/api/types/container"
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"github.com/docker/docker/utils"
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"github.com/docker/docker/volume"
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)
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// Container holds fields specific to the Windows implementation. See
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// CommonContainer for standard fields common to all containers.
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type Container struct {
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CommonContainer
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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(_ bool, linkedEnv []string) []string {
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// because the env on the container can override certain default values
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// we need to replace the 'env' keys where they match and append anything
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// else.
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return utils.ReplaceOrAppendEnvValues(linkedEnv, container.Config.Env)
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}
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// UnmountIpcMounts unmounts Ipc related mounts.
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// This is a NOOP on windows.
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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() []Mount {
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return nil
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}
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// UnmountVolumes explicitly unmounts volumes from the container.
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func (container *Container) UnmountVolumes(forceSyscall bool, volumeEventLog func(name, action string, attributes map[string]string)) error {
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var (
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volumeMounts []volume.MountPoint
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err error
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)
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for _, mntPoint := range container.MountPoints {
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// Do not attempt to get the mountpoint destination on the host as it
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// is not accessible on Windows in the case that a container is running.
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// (It's a special reparse point which doesn't have any contextual meaning).
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volumeMounts = append(volumeMounts, volume.MountPoint{Volume: mntPoint.Volume, ID: mntPoint.ID})
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}
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// atm, this is a no-op.
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if volumeMounts, err = appendNetworkMounts(container, volumeMounts); err != nil {
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return err
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}
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for _, volumeMount := range volumeMounts {
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if volumeMount.Volume != nil {
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if err := volumeMount.Volume.Unmount(volumeMount.ID); err != nil {
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return err
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}
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volumeMount.ID = ""
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attributes := map[string]string{
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"driver": volumeMount.Volume.DriverName(),
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"container": container.ID,
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}
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volumeEventLog(volumeMount.Volume.Name(), "unmount", attributes)
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}
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}
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return nil
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}
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// TmpfsMounts returns the list of tmpfs mounts
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func (container *Container) TmpfsMounts() []Mount {
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var mounts []Mount
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return mounts
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}
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// UpdateContainer updates configuration of a container
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func (container *Container) UpdateContainer(hostConfig *containertypes.HostConfig) error {
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container.Lock()
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defer container.Unlock()
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resources := hostConfig.Resources
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if resources.BlkioWeight != 0 || resources.CPUShares != 0 ||
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resources.CPUPeriod != 0 || resources.CPUQuota != 0 ||
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resources.CpusetCpus != "" || resources.CpusetMems != "" ||
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resources.Memory != 0 || resources.MemorySwap != 0 ||
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resources.MemoryReservation != 0 || resources.KernelMemory != 0 {
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return fmt.Errorf("Resource updating isn't supported on Windows")
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}
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// update HostConfig of container
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if hostConfig.RestartPolicy.Name != "" {
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if container.HostConfig.AutoRemove && !hostConfig.RestartPolicy.IsNone() {
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return fmt.Errorf("Restart policy cannot be updated because AutoRemove is enabled for the container")
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}
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container.HostConfig.RestartPolicy = hostConfig.RestartPolicy
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}
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return nil
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}
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// appendNetworkMounts appends any network mounts to the array of mount points passed in.
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// Windows does not support network mounts (not to be confused with SMB network mounts), so
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// this is a no-op.
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func appendNetworkMounts(container *Container, volumeMounts []volume.MountPoint) ([]volume.MountPoint, error) {
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return volumeMounts, nil
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}
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// cleanResourcePath cleans a resource path by removing C:\ syntax, and prepares
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// to combine with a volume path
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func cleanResourcePath(path string) string {
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if len(path) >= 2 {
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c := path[0]
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if path[1] == ':' && ('a' <= c && c <= 'z' || 'A' <= c && c <= 'Z') {
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path = path[2:]
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}
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}
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return filepath.Join(string(os.PathSeparator), path)
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}
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// BuildHostnameFile writes the container's hostname file.
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func (container *Container) BuildHostnameFile() error {
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return nil
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}
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// canMountFS determines if the file system for the container
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// can be mounted locally. In the case of Windows, this is not possible
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// for Hyper-V containers during WORKDIR execution for example.
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func (container *Container) canMountFS() bool {
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return !containertypes.Isolation.IsHyperV(container.HostConfig.Isolation)
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}
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// EnableServiceDiscoveryOnDefaultNetwork Enable service discovery on default network
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func (container *Container) EnableServiceDiscoveryOnDefaultNetwork() bool {
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return true
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}
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