containerd/stats.go

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package containerd
import "github.com/rcrowley/go-metrics"
var (
ContainerStartTimer = metrics.NewTimer()
ContainersCounter = metrics.NewCounter()
EventsCounter = metrics.NewCounter()
EventSubscriberCounter = metrics.NewCounter()
)
func Metrics() map[string]interface{} {
return map[string]interface{}{
"container-start-time": ContainerStartTimer,
"containers": ContainersCounter,
"events": EventsCounter,
"events-subscribers": EventSubscriberCounter,
}
}
type StatsEvent struct {
s *Supervisor
}
type UnsubscribeStatsEvent struct {
s *Supervisor
}
type StopStatsEvent struct {
s *Supervisor
}
func (h *StatsEvent) Handle(e *Event) error {
i, ok := h.s.containers[e.ID]
if !ok {
return ErrContainerNotFound
}
e.Stats = h.s.statsCollector.collect(i.container)
return nil
}
func (h *UnsubscribeStatsEvent) Handle(e *Event) error {
i, ok := h.s.containers[e.ID]
if !ok {
return ErrContainerNotFound
}
h.s.statsCollector.unsubscribe(i.container, e.Stats)
return nil
}
func (h *StopStatsEvent) Handle(e *Event) error {
i, ok := h.s.containers[e.ID]
if !ok {
return ErrContainerNotFound
}
h.s.statsCollector.stopCollection(i.container)
return nil
}