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moby--moby/container/container_windows.go
Darren Stahl e507066303 Add missing resources to update block for Windows containers
Signed-off-by: Darren Stahl <darst@microsoft.com>
2017-03-07 16:25:17 -08:00

137 lines
4.2 KiB
Go

// +build windows
package container
import (
"fmt"
"os"
"path/filepath"
containertypes "github.com/docker/docker/api/types/container"
)
// Container holds fields specific to the Windows implementation. See
// CommonContainer for standard fields common to all containers.
type Container struct {
CommonContainer
// Fields below here are platform specific.
NetworkSharedContainerID string
}
// ExitStatus provides exit reasons for a container.
type ExitStatus struct {
// The exit code with which the container exited.
ExitCode int
}
// CreateDaemonEnvironment creates a new environment variable slice for this container.
func (container *Container) CreateDaemonEnvironment(_ bool, linkedEnv []string) []string {
// because the env on the container can override certain default values
// we need to replace the 'env' keys where they match and append anything
// else.
return ReplaceOrAppendEnvValues(linkedEnv, container.Config.Env)
}
// UnmountIpcMounts unmounts Ipc related mounts.
// This is a NOOP on windows.
func (container *Container) UnmountIpcMounts(unmount func(pth string) error) {
}
// IpcMounts returns the list of Ipc related mounts.
func (container *Container) IpcMounts() []Mount {
return nil
}
// SecretMount returns the mount for the secret path
func (container *Container) SecretMount() *Mount {
return nil
}
// UnmountSecrets unmounts the fs for secrets
func (container *Container) UnmountSecrets() error {
return nil
}
// DetachAndUnmount unmounts all volumes.
// On Windows it only delegates to `UnmountVolumes` since there is nothing to
// force unmount.
func (container *Container) DetachAndUnmount(volumeEventLog func(name, action string, attributes map[string]string)) error {
return container.UnmountVolumes(volumeEventLog)
}
// TmpfsMounts returns the list of tmpfs mounts
func (container *Container) TmpfsMounts() ([]Mount, error) {
var mounts []Mount
return mounts, nil
}
// UpdateContainer updates configuration of a container
func (container *Container) UpdateContainer(hostConfig *containertypes.HostConfig) error {
container.Lock()
defer container.Unlock()
resources := hostConfig.Resources
if resources.CPUShares != 0 ||
resources.Memory != 0 ||
resources.NanoCPUs != 0 ||
resources.CgroupParent != "" ||
resources.BlkioWeight != 0 ||
len(resources.BlkioWeightDevice) != 0 ||
len(resources.BlkioDeviceReadBps) != 0 ||
len(resources.BlkioDeviceWriteBps) != 0 ||
len(resources.BlkioDeviceReadIOps) != 0 ||
len(resources.BlkioDeviceWriteIOps) != 0 ||
resources.CPUPeriod != 0 ||
resources.CPUQuota != 0 ||
resources.CPURealtimePeriod != 0 ||
resources.CPURealtimeRuntime != 0 ||
resources.CpusetCpus != "" ||
resources.CpusetMems != "" ||
len(resources.Devices) != 0 ||
len(resources.DeviceCgroupRules) != 0 ||
resources.DiskQuota != 0 ||
resources.KernelMemory != 0 ||
resources.MemoryReservation != 0 ||
resources.MemorySwap != 0 ||
resources.MemorySwappiness != nil ||
resources.OomKillDisable != nil ||
resources.PidsLimit != 0 ||
len(resources.Ulimits) != 0 ||
resources.CPUCount != 0 ||
resources.CPUPercent != 0 ||
resources.IOMaximumIOps != 0 ||
resources.IOMaximumBandwidth != 0 {
return fmt.Errorf("resource updating isn't supported on Windows")
}
// update HostConfig of container
if hostConfig.RestartPolicy.Name != "" {
if container.HostConfig.AutoRemove && !hostConfig.RestartPolicy.IsNone() {
return fmt.Errorf("Restart policy cannot be updated because AutoRemove is enabled for the container")
}
container.HostConfig.RestartPolicy = hostConfig.RestartPolicy
}
return nil
}
// cleanResourcePath cleans a resource path by removing C:\ syntax, and prepares
// to combine with a volume path
func cleanResourcePath(path string) string {
if len(path) >= 2 {
c := path[0]
if path[1] == ':' && ('a' <= c && c <= 'z' || 'A' <= c && c <= 'Z') {
path = path[2:]
}
}
return filepath.Join(string(os.PathSeparator), path)
}
// BuildHostnameFile writes the container's hostname file.
func (container *Container) BuildHostnameFile() error {
return nil
}
// EnableServiceDiscoveryOnDefaultNetwork Enable service discovery on default network
func (container *Container) EnableServiceDiscoveryOnDefaultNetwork() bool {
return true
}