lifecycle

type ExecFunc = func(context.Context) error

type Executor struct {
	Exec ExecFunc
}

type Getter interface {
	GetAfterStops() []Executor
	GetBeforeStops() []Executor
	GetAfterStarts() []Executor
	GetBeforeStarts() []Executor
}

type Handler func(lc Lifecycle)

type Lifecycle interface {
	AfterStop(f ExecFunc)
	BeforeStop(f ExecFunc)
	AfterStart(f ExecFunc)
	BeforeStart(f ExecFunc)
}