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// +build daemon,!windows
package main
import ( |
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"fmt" |
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"os" |
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"os/signal" |
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"syscall" |
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|
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"github.com/Sirupsen/logrus" |
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apiserver "github.com/docker/docker/api/server"
"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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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
serverConfig.CorsHeaders = daemonCfg.CorsHeaders
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return serverConfig
}
// currentUserIsOwner checks whether the current user is the owner of the given
// file.
func currentUserIsOwner(f string) bool {
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
}
}
return false
} |
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// setDefaultUmask sets the umask to 0022 to avoid problems
// caused by custom umask
func setDefaultUmask() error {
desiredUmask := 0022
syscall.Umask(desiredUmask)
if umask := syscall.Umask(desiredUmask); umask != desiredUmask {
return fmt.Errorf("failed to set umask: expected %#o, got %#o", desiredUmask, umask)
}
return nil
} |
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func getDaemonConfDir() string {
return "/etc/docker"
} |
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// setupConfigReloadTrap configures the USR2 signal to reload the configuration.
func setupConfigReloadTrap(configFile string, flags *mflag.FlagSet, reload func(*daemon.Config)) {
c := make(chan os.Signal, 1)
signal.Notify(c, syscall.SIGHUP)
go func() {
for range c { |
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if err := daemon.ReloadConfiguration(configFile, flags, reload); err != nil {
logrus.Error(err)
} |
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}
}()
} |
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func (cli *DaemonCli) getPlatformRemoteOptions() []libcontainerd.RemoteOption {
opts := []libcontainerd.RemoteOption{
libcontainerd.WithDebugLog(cli.Config.Debug),
}
if cli.Config.ContainerdAddr != "" {
opts = append(opts, libcontainerd.WithRemoteAddr(cli.Config.ContainerdAddr))
} else {
opts = append(opts, libcontainerd.WithStartDaemon(true))
} |
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if daemon.UsingSystemd(cli.Config) {
args := []string{"--systemd-cgroup=true"}
opts = append(opts, libcontainerd.WithRuntimeArgs(args))
} |
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return opts
} |