kubernetes/cmd/kubeadm/app/util/initsystem/initsystem_unix.go

type OpenRCInitSystem …

// ServiceStart tries to start a specific service
func (openrc OpenRCInitSystem) ServiceStart(service string) error { … }

// ServiceStop tries to stop a specific service
func (openrc OpenRCInitSystem) ServiceStop(service string) error { … }

// ServiceRestart tries to reload the environment and restart the specific service
func (openrc OpenRCInitSystem) ServiceRestart(service string) error { … }

// ServiceExists ensures the service is defined for this init system.
// openrc writes to stderr if a service is not found or not enabled
// this is in contrast to systemd which only writes to stdout.
// Hence, we use the Combinedoutput, and ignore the error.
func (openrc OpenRCInitSystem) ServiceExists(service string) bool { … }

// ServiceIsEnabled ensures the service is enabled to start on each boot.
func (openrc OpenRCInitSystem) ServiceIsEnabled(service string) bool { … }

// ServiceIsActive ensures the service is running, or attempting to run. (crash looping in the case of kubelet)
func (openrc OpenRCInitSystem) ServiceIsActive(service string) bool { … }

// EnableCommand return a string describing how to enable a service
func (openrc OpenRCInitSystem) EnableCommand(service string) string { … }

type SystemdInitSystem …

// EnableCommand return a string describing how to enable a service
func (sysd SystemdInitSystem) EnableCommand(service string) string { … }

// reloadSystemd reloads the systemd daemon
func (sysd SystemdInitSystem) reloadSystemd() error { … }

// ServiceStart tries to start a specific service
func (sysd SystemdInitSystem) ServiceStart(service string) error { … }

// ServiceRestart tries to reload the environment and restart the specific service
func (sysd SystemdInitSystem) ServiceRestart(service string) error { … }

// ServiceStop tries to stop a specific service
func (sysd SystemdInitSystem) ServiceStop(service string) error { … }

// ServiceExists ensures the service is defined for this init system.
func (sysd SystemdInitSystem) ServiceExists(service string) bool { … }

// ServiceIsEnabled ensures the service is enabled to start on each boot.
func (sysd SystemdInitSystem) ServiceIsEnabled(service string) bool { … }

// ServiceIsActive will check is the service is "active". In the case of
// crash looping services (kubelet in our case) status will return as
// "activating", so we will consider this active as well.
func (sysd SystemdInitSystem) ServiceIsActive(service string) bool { … }

// GetInitSystem returns an InitSystem for the current system, or nil
// if we cannot detect a supported init system.
// This indicates we will skip init system checks, not an error.
func GetInitSystem() (InitSystem, error) { … }