systemd

func DaemonReload ¶

func DaemonReload(ctx context.Context) ([]byte, error)

func GetUptime ¶

func GetUptime(service string) (*time.Duration, error)

GetUptime returns the uptime duration of the systemd service. Returns nil if the service is not found (thus uptime is not applicable, "n/a"). ref. https://github.com/kubernetes/node-problem-detector/blob/c4e5400ed6d7ca30d3a803248ae5b55c53557e59/pkg/healthchecker/health_checker_linux.go

func GetUptimeWithCommand ¶ added in v0.13.0

func GetUptimeWithCommand(service, command string) (*time.Duration, error)

GetUptimeWithCommand uses the same command prefix as IsActiveWithCommand.

func GetVersion ¶ added in v0.5.0

func GetVersion() (string, []string, error)

GetVersion returns the systemd version by running `systemd --version`.

func IsActive ¶

func IsActive(service string) (bool, error)

IsActive returns true if the systemd service is active. TODO: deprecate this

func IsActiveWithCommand ¶ added in v0.13.0

func IsActiveWithCommand(service, command string) (bool, error)

IsActiveWithCommand accepts an optional systemctl command prefix for host queries.

func NotifyReady ¶ added in v0.5.0

func NotifyReady(_ context.Context) error

NotifyReady notifies systemd that the daemon is ready to serve requests. It also unsets NOTIFY_SOCKET from the process environment to prevent child processes from inheriting it and sending spurious notifications. ref. https://github.com/leptonai/gpud/issues/1215

func NotifyStopping ¶ added in v0.5.0

func NotifyStopping(_ context.Context) error

NotifyStopping notifies systemd that the daemon is about to be stopped.

func SystemctlExists ¶

func SystemctlExists() bool

func SystemdExists ¶

func SystemdExists() bool