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moby--moby/cmd/dockerd/daemon_windows.go
Sebastiaan van Stijn f3d0f7054d
cmd/dockerd: sd_notify STOPPING=1 when shutting down
Signal systemd when we start shutting down to complement the "READY" notify
that was originally implemented in 97088ebef7

From [sd_notify(3)](https://www.freedesktop.org/software/systemd/man/sd_notify.html#STOPPING=1)

> STOPPING=1
> Tells the service manager that the service is beginning its shutdown. This is useful
> to allow the service manager to track the service's internal state, and present it to
> the user.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-12-22 10:51:17 +01:00

99 lines
2.4 KiB
Go

package main
import (
"context"
"fmt"
"os"
"path/filepath"
"time"
"github.com/docker/docker/daemon/config"
"github.com/docker/docker/libcontainerd/supervisor"
"github.com/docker/docker/pkg/system"
"github.com/sirupsen/logrus"
"golang.org/x/sys/windows"
)
func getDefaultDaemonConfigFile() (string, error) {
return "", nil
}
// setDefaultUmask doesn't do anything on windows
func setDefaultUmask() error {
return nil
}
func getDaemonConfDir(root string) (string, error) {
return filepath.Join(root, `\config`), nil
}
// preNotifyReady sends a message to the host when the API is active, but before the daemon is
func preNotifyReady() {
// start the service now to prevent timeouts waiting for daemon to start
// but still (eventually) complete all requests that are sent after this
if service != nil {
err := service.started()
if err != nil {
logrus.Fatal(err)
}
}
}
// notifyReady sends a message to the host when the server is ready to be used
func notifyReady() {
}
// notifyStopping sends a message to the host when the server is shutting down
func notifyStopping() {
}
// notifyShutdown is called after the daemon shuts down but before the process exits.
func notifyShutdown(err error) {
if service != nil {
if err != nil {
logrus.Fatal(err)
}
service.stopped(err)
}
}
func (cli *DaemonCli) getPlatformContainerdDaemonOpts() ([]supervisor.DaemonOpt, error) {
return nil, nil
}
// setupConfigReloadTrap configures a Win32 event to reload the configuration.
func (cli *DaemonCli) setupConfigReloadTrap() {
go func() {
sa := windows.SecurityAttributes{
Length: 0,
}
event := "Global\\docker-daemon-config-" + fmt.Sprint(os.Getpid())
ev, _ := windows.UTF16PtrFromString(event)
if h, _ := windows.CreateEvent(&sa, 0, 0, ev); h != 0 {
logrus.Debugf("Config reload - waiting signal at %s", event)
for {
windows.WaitForSingleObject(h, windows.INFINITE)
cli.reloadConfig()
}
}
}()
}
// getSwarmRunRoot gets the root directory for swarm to store runtime state
// For example, the control socket
func (cli *DaemonCli) getSwarmRunRoot() string {
return ""
}
func allocateDaemonPort(addr string) error {
return nil
}
func newCgroupParent(config *config.Config) string {
return ""
}
func (cli *DaemonCli) initContainerD(_ context.Context) (func(time.Duration) error, error) {
system.InitContainerdRuntime(cli.Config.Experimental, cli.Config.ContainerdAddr)
return nil, nil
}