Re-add the ticker periodically updating stats

cmd/apiary.go

@@ -96,7 +96,7 @@ func ActionServe(c *cli.Context) error {
 	defer serversCancel()
 
 	// Setup metrics collection
-	s = store.NewMetricsCollectingStore(s)
+	s = store.NewMetricsCollectingStore(rootCtx, s)
 
 	// Setup honeypot
 	hs, err := ssh.NewHoneypotServer(cfg.Honeypot, s)

honeypot/ssh/store/metrics.go

@@ -1,20 +1,28 @@
 package store
 
 import (
+	"context"
+	"time"
+
 	"github.com/prometheus/client_golang/prometheus"
 	"github.uio.no/torjus/apiary/models"
 )
 
+const tickDuration = 5 * time.Second
+
 type MetricsCollectingStore struct {
-	store                LoginAttemptStore
+	store LoginAttemptStore
+
 	attemptsCounter      *prometheus.CounterVec
 	uniqueUsernamesCount prometheus.Gauge
 	uniquePasswordsCount prometheus.Gauge
 	uniqueIPsCount       prometheus.Gauge
 	totalAttemptsCount   prometheus.Gauge
+
+	statsTicker *time.Ticker
 }
 
-func NewMetricsCollectingStore(store LoginAttemptStore) *MetricsCollectingStore {
+func NewMetricsCollectingStore(ctx context.Context, store LoginAttemptStore) *MetricsCollectingStore {
 	mcs := &MetricsCollectingStore{store: store}
 
 	mcs.attemptsCounter = prometheus.NewCounterVec(
@@ -59,6 +67,19 @@ func NewMetricsCollectingStore(store LoginAttemptStore) *MetricsCollectingStore
 	prometheus.MustRegister(mcs.uniqueIPsCount)
 	prometheus.MustRegister(mcs.totalAttemptsCount)
 
+	mcs.statsTicker = time.NewTicker(tickDuration)
+	go func() {
+		defer mcs.statsTicker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-mcs.statsTicker.C:
+				mcs.Stats(LoginStatsTotals, 0)
+			}
+		}
+	}()
+
 	return mcs
 }
 
@@ -75,6 +96,8 @@ func (s *MetricsCollectingStore) All() ([]models.LoginAttempt, error) {
 func (s *MetricsCollectingStore) Stats(statType LoginStats, limit int) ([]StatsResult, error) {
 	stats, err := s.store.Stats(statType, limit)
 	if statType == LoginStatsTotals {
+		// Reset ticker to avoid updating twice within the duration
+		s.statsTicker.Reset(tickDuration)
 		for _, element := range stats {
 			switch element.Name {
 			case "UniquePasswords":

version.go

@@ -5,7 +5,7 @@ import (
 	"runtime"
 )
 
-var Version = "v0.1.19"
+var Version = "v0.1.20"
 var Build string
 
 func FullVersion() string {