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))
}
if daemon.UsingSystemd(cli.Config) {
args := []string{"--systemd-cgroup=true"}
opts = append(opts, libcontainerd.WithRuntimeArgs(args))
}
if cli.Config.LiveRestore {
opts = append(opts, libcontainerd.WithLiveRestore(true))
}
opts = append(opts, libcontainerd.WithRuntimePath(daemon.DefaultRuntimeBinary))
return opts
}
// Reload reads configuration changes and modifies the
// daemon according to those changes.
// These are the settings that Reload changes:
// - Daemon labels.
// - Daemon debug log level.
// - Daemon max concurrent downloads
// - Daemon max concurrent uploads
// - Cluster discovery (reconfigure and restart).
// - Daemon live restore
func (daemon *Daemon) Reload(config *Config) error {
var err error
// used to hold reloaded changes
attributes := map[string]string{}
// We need defer here to ensure the lock is released as
// daemon.SystemInfo() will try to get it too
defer func() {
if err == nil {
daemon.LogDaemonEventWithAttributes("reload", attributes)
}
}()
daemon.configStore.reloadLock.Lock()
defer daemon.configStore.reloadLock.Unlock()
daemon.platformReload(config, &attributes)
if err = daemon.reloadClusterDiscovery(config); err != nil {
return err
}
if config.IsValueSet("labels") {
daemon.configStore.Labels = config.Labels
}
if config.IsValueSet("debug") {
daemon.configStore.Debug = config.Debug
}
if config.IsValueSet("live-restore") {
daemon.configStore.LiveRestoreEnabled = config.LiveRestoreEnabled
if err := daemon.containerdRemote.UpdateOptions(libcontainerd.WithLiveRestore(config.LiveRestoreEnabled)); err != nil {
return err
}
}
// If no value is set for max-concurrent-downloads we assume it is the default value
// We always "reset" as the cost is lightweight and easy to maintain.
if config.IsValueSet("max-concurrent-downloads") && config.MaxConcurrentDownloads != nil {
*daemon.configStore.MaxConcurrentDownloads = *config.MaxConcurrentDownloads
} else {
maxConcurrentDownloads := defaultMaxConcurrentDownloads
daemon.configStore.MaxConcurrentDownloads = &maxConcurrentDownloads
}
logrus.Debugf("Reset Max Concurrent Downloads: %d", *daemon.configStore.MaxConcurrentDownloads)
if daemon.downloadManager != nil {
daemon.downloadManager.SetConcurrency(*daemon.configStore.MaxConcurrentDownloads)
}
// If no value is set for max-concurrent-upload we assume it is the default value
// We always "reset" as the cost is lightweight and easy to maintain.
if config.IsValueSet("max-concurrent-uploads") && config.MaxConcurrentUploads != nil {
*daemon.configStore.MaxConcurrentUploads = *config.MaxConcurrentUploads
} else {
maxConcurrentUploads := defaultMaxConcurrentUploads
daemon.configStore.MaxConcurrentUploads = &maxConcurrentUploads
}
logrus.Debugf("Reset Max Concurrent Uploads: %d", *daemon.configStore.MaxConcurrentUploads)
if daemon.uploadManager != nil {
daemon.uploadManager.SetConcurrency(*daemon.configStore.MaxConcurrentUploads)
}
// We emit daemon reload event here with updatable configurations
attributes["debug"] = fmt.Sprintf("%t", daemon.configStore.Debug)
attributes["live-restore"] = fmt.Sprintf("%t", daemon.configStore.LiveRestoreEnabled)
attributes["cluster-store"] = daemon.configStore.ClusterStore
if daemon.configStore.ClusterOpts != nil {
opts, _ := json.Marshal(daemon.configStore.ClusterOpts)
attributes["cluster-store-opts"] = string(opts)
} else {
attributes["cluster-store-opts"] = "{}"
}
attributes["cluster-advertise"] = daemon.configStore.ClusterAdvertise
if daemon.configStore.Labels != nil {
labels, _ := json.Marshal(daemon.configStore.Labels)
attributes["labels"] = string(labels)
} else {
attributes["labels"] = "[]"
}
attributes["max-concurrent-downloads"] = fmt.Sprintf("%d", *daemon.configStore.MaxConcurrentDownloads)
attributes["max-concurrent-uploads"] = fmt.Sprintf("%d", *daemon.configStore.MaxConcurrentUploads)
return nil
}
// Reload reads configuration changes and modifies the
// daemon according to those changes.
// These are the settings that Reload changes:
// - Daemon labels.
// - Daemon debug log level.
// - Daemon insecure registries.
// - Daemon max concurrent downloads
// - Daemon max concurrent uploads
// - Cluster discovery (reconfigure and restart).
// - Daemon live restore
// - Daemon shutdown timeout (in seconds).
func (daemon *Daemon) Reload(config *Config) (err error) {
daemon.configStore.reloadLock.Lock()
attributes := daemon.platformReload(config)
defer func() {
// we're unlocking here, because
// LogDaemonEventWithAttributes() -> SystemInfo() -> GetAllRuntimes()
// holds that lock too.
daemon.configStore.reloadLock.Unlock()
if err == nil {
daemon.LogDaemonEventWithAttributes("reload", attributes)
}
}()
if err := daemon.reloadClusterDiscovery(config); err != nil {
return err
}
if config.IsValueSet("labels") {
daemon.configStore.Labels = config.Labels
}
if config.IsValueSet("debug") {
daemon.configStore.Debug = config.Debug
}
if config.IsValueSet("insecure-registries") {
daemon.configStore.InsecureRegistries = config.InsecureRegistries
if err := daemon.RegistryService.LoadInsecureRegistries(config.InsecureRegistries); err != nil {
return err
}
}
if config.IsValueSet("live-restore") {
daemon.configStore.LiveRestoreEnabled = config.LiveRestoreEnabled
if err := daemon.containerdRemote.UpdateOptions(libcontainerd.WithLiveRestore(config.LiveRestoreEnabled)); err != nil {
return err
}
}
// If no value is set for max-concurrent-downloads we assume it is the default value
// We always "reset" as the cost is lightweight and easy to maintain.
if config.IsValueSet("max-concurrent-downloads") && config.MaxConcurrentDownloads != nil {
*daemon.configStore.MaxConcurrentDownloads = *config.MaxConcurrentDownloads
} else {
maxConcurrentDownloads := defaultMaxConcurrentDownloads
daemon.configStore.MaxConcurrentDownloads = &maxConcurrentDownloads
}
logrus.Debugf("Reset Max Concurrent Downloads: %d", *daemon.configStore.MaxConcurrentDownloads)
if daemon.downloadManager != nil {
daemon.downloadManager.SetConcurrency(*daemon.configStore.MaxConcurrentDownloads)
}
// If no value is set for max-concurrent-upload we assume it is the default value
// We always "reset" as the cost is lightweight and easy to maintain.
if config.IsValueSet("max-concurrent-uploads") && config.MaxConcurrentUploads != nil {
*daemon.configStore.MaxConcurrentUploads = *config.MaxConcurrentUploads
} else {
maxConcurrentUploads := defaultMaxConcurrentUploads
daemon.configStore.MaxConcurrentUploads = &maxConcurrentUploads
}
logrus.Debugf("Reset Max Concurrent Uploads: %d", *daemon.configStore.MaxConcurrentUploads)
if daemon.uploadManager != nil {
daemon.uploadManager.SetConcurrency(*daemon.configStore.MaxConcurrentUploads)
}
if config.IsValueSet("shutdown-timeout") {
daemon.configStore.ShutdownTimeout = config.ShutdownTimeout
logrus.Debugf("Reset Shutdown Timeout: %d", daemon.configStore.ShutdownTimeout)
}
// We emit daemon reload event here with updatable configurations
attributes["debug"] = fmt.Sprintf("%t", daemon.configStore.Debug)
attributes["live-restore"] = fmt.Sprintf("%t", daemon.configStore.LiveRestoreEnabled)
if daemon.configStore.InsecureRegistries != nil {
insecureRegistries, err := json.Marshal(daemon.configStore.InsecureRegistries)
if err != nil {
return err
}
attributes["insecure-registries"] = string(insecureRegistries)
} else {
attributes["insecure-registries"] = "[]"
}
attributes["cluster-store"] = daemon.configStore.ClusterStore
if daemon.configStore.ClusterOpts != nil {
opts, err := json.Marshal(daemon.configStore.ClusterOpts)
if err != nil {
return err
}
attributes["cluster-store-opts"] = string(opts)
} else {
attributes["cluster-store-opts"] = "{}"
}
attributes["cluster-advertise"] = daemon.configStore.ClusterAdvertise
if daemon.configStore.Labels != nil {
labels, err := json.Marshal(daemon.configStore.Labels)
if err != nil {
return err
}
attributes["labels"] = string(labels)
} else {
attributes["labels"] = "[]"
}
attributes["max-concurrent-downloads"] = fmt.Sprintf("%d", *daemon.configStore.MaxConcurrentDownloads)
attributes["max-concurrent-uploads"] = fmt.Sprintf("%d", *daemon.configStore.MaxConcurrentUploads)
attributes["shutdown-timeout"] = fmt.Sprintf("%d", daemon.configStore.ShutdownTimeout)
return nil
}