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85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
// +build daemon,!windows
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package main
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import (
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"fmt"
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"os"
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"os/signal"
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"path/filepath"
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"syscall"
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"github.com/Sirupsen/logrus"
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apiserver "github.com/docker/docker/api/server"
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"github.com/docker/docker/daemon"
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"github.com/docker/docker/libcontainerd"
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"github.com/docker/docker/pkg/mflag"
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"github.com/docker/docker/pkg/system"
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)
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const defaultDaemonConfigFile = "/etc/docker/daemon.json"
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func setPlatformServerConfig(serverConfig *apiserver.Config, daemonCfg *daemon.Config) *apiserver.Config {
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serverConfig.EnableCors = daemonCfg.EnableCors
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serverConfig.CorsHeaders = daemonCfg.CorsHeaders
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return serverConfig
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}
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// currentUserIsOwner checks whether the current user is the owner of the given
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// file.
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func currentUserIsOwner(f string) bool {
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if fileInfo, err := system.Stat(f); err == nil && fileInfo != nil {
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if int(fileInfo.UID()) == os.Getuid() {
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return true
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}
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}
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return false
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}
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// setDefaultUmask sets the umask to 0022 to avoid problems
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// caused by custom umask
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func setDefaultUmask() error {
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desiredUmask := 0022
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syscall.Umask(desiredUmask)
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if umask := syscall.Umask(desiredUmask); umask != desiredUmask {
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return fmt.Errorf("failed to set umask: expected %#o, got %#o", desiredUmask, umask)
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}
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return nil
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}
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func getDaemonConfDir() string {
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return "/etc/docker"
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}
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// setupConfigReloadTrap configures the USR2 signal to reload the configuration.
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func setupConfigReloadTrap(configFile string, flags *mflag.FlagSet, reload func(*daemon.Config)) {
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c := make(chan os.Signal, 1)
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signal.Notify(c, syscall.SIGHUP)
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go func() {
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for range c {
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if err := daemon.ReloadConfiguration(configFile, flags, reload); err != nil {
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logrus.Error(err)
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}
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}
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}()
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}
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func (cli *DaemonCli) getPlatformRemoteOptions() []libcontainerd.RemoteOption {
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opts := []libcontainerd.RemoteOption{
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libcontainerd.WithDebugLog(cli.Config.Debug),
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}
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if cli.Config.ContainerdAddr != "" {
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opts = append(opts, libcontainerd.WithRemoteAddr(cli.Config.ContainerdAddr))
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} else {
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opts = append(opts, libcontainerd.WithStartDaemon(true))
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}
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return opts
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}
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// getLibcontainerdRoot gets the root directory for libcontainerd/containerd to
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// store their state.
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func (cli *DaemonCli) getLibcontainerdRoot() string {
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return filepath.Join(cli.Config.ExecRoot, "libcontainerd")
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}
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