[#271] Add namespace label to billing metrics

Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>

CHANGELOG.md

@@ -42,6 +42,7 @@ This document outlines major changes between releases.
 - Support frostfsid contract. See `frostfsid` config section (#260)
 - Support per namespace placement policies configuration (see `namespaces.config` config param) (#266)
 - Support control api to manage policies. See `control` config section (#258)
+- Add `namespace` label to billing metrics (#271)
 
 ### Changed
 - Update prometheus to v1.15.0 (#94)

api/middleware/metrics.go

@@ -17,10 +17,6 @@ import (
 )
 
 type (
-	UsersStat interface {
-		Update(user, bucket, cnrID string, reqType int, in, out uint64)
-	}
-
 	readCounter struct {
 		io.ReadCloser
 		countBytes uint64
@@ -39,6 +35,10 @@ type (
 		startTime  time.Time
 	}
 
+	AliasResolver interface {
+		ResolveNamespaceAlias(namespace string) string
+	}
+
 	// BucketResolveFunc is a func to resolve bucket info by name.
 	BucketResolveFunc func(ctx context.Context, bucket string) (*data.BucketInfo, error)
 
@@ -49,14 +49,14 @@ type (
 const systemPath = "/system"
 
 // Metrics wraps http handler for api with basic statistics collection.
-func Metrics(log *zap.Logger, resolveBucket BucketResolveFunc, appMetrics *metrics.AppMetrics) Func {
+func Metrics(log *zap.Logger, resolveBucket BucketResolveFunc, appMetrics *metrics.AppMetrics, aliasResolver AliasResolver) Func {
 	return func(h http.Handler) http.Handler {
-		return stats(h.ServeHTTP, resolveCID(log, resolveBucket), appMetrics)
+		return stats(h.ServeHTTP, resolveCID(log, resolveBucket), appMetrics, aliasResolver)
 	}
 }
 
 // Stats is a handler that update metrics.
-func stats(f http.HandlerFunc, resolveCID cidResolveFunc, appMetrics *metrics.AppMetrics) http.HandlerFunc {
+func stats(f http.HandlerFunc, resolveCID cidResolveFunc, appMetrics *metrics.AppMetrics, aliasResolver AliasResolver) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		reqInfo := GetReqInfo(r.Context())
 
@@ -82,7 +82,8 @@ func stats(f http.HandlerFunc, resolveCID cidResolveFunc, appMetrics *metrics.Ap
 
 		user := resolveUser(r.Context())
 		cnrID := resolveCID(r.Context(), reqInfo)
-		appMetrics.Update(user, reqInfo.BucketName, cnrID, requestTypeFromAPI(reqInfo.API), in.countBytes, out.countBytes)
+		appMetrics.Update(user, reqInfo.BucketName, cnrID, aliasResolver.ResolveNamespaceAlias(reqInfo.Namespace),
+			requestTypeFromAPI(reqInfo.API), in.countBytes, out.countBytes)
 
 		code := statsWriter.statusCode
 		// A successful request has a 2xx response code

api/router.go

@@ -98,6 +98,8 @@ type Config struct {
 
 	RequestMiddlewareSettings s3middleware.RequestSettings
 
+	AliasResolver s3middleware.AliasResolver
+
 	// Domains optional. If empty no virtual hosted domains will be attached.
 	Domains []string
 
@@ -112,7 +114,7 @@ func NewRouter(cfg Config) *chi.Mux {
 		middleware.ThrottleWithOpts(cfg.Throttle),
 		middleware.Recoverer,
 		s3middleware.Tracing(),
-		s3middleware.Metrics(cfg.Log, cfg.Handler.ResolveBucket, cfg.Metrics),
+		s3middleware.Metrics(cfg.Log, cfg.Handler.ResolveBucket, cfg.Metrics, cfg.AliasResolver),
 		s3middleware.LogSuccessResponse(cfg.Log),
 		s3middleware.Auth(cfg.Center, cfg.Log),
 	)

cmd/s3-gw/app.go

@@ -385,6 +385,16 @@ func (s *appSettings) setAuthorizedControlAPIKeys(keys keys.PublicKeys) {
 	s.mu.Unlock()
 }
 
+func (s *appSettings) ResolveNamespaceAlias(namespace string) string {
+	s.mu.RLock()
+	namespaces := s.defaultNamespaces
+	s.mu.RUnlock()
+	if slices.Contains(namespaces, namespace) {
+		return defaultMetricsNamespace
+	}
+	return namespace
+}
+
 func (a *App) initAPI(ctx context.Context) {
 	a.initLayer(ctx)
 	a.initHandler()
@@ -620,6 +630,7 @@ func (a *App) Serve(ctx context.Context) {
 		Domains: domains,
 
 		RequestMiddlewareSettings: a.settings,
+		AliasResolver:             a.settings,
 	}
 
 	// We cannot make direct assignment if frostfsid.FrostFSID is nil

cmd/s3-gw/app_settings.go

@@ -55,6 +55,8 @@ const (
 	defaultNamespaceHeader = "X-Frostfs-Namespace"
 
 	defaultConstraintName = "default"
+
+	defaultMetricsNamespace = ""
 )
 
 var (

metrics/app.go

@@ -65,12 +65,12 @@ func (m *AppMetrics) Handler() http.Handler {
 	return m.gate.Handler()
 }
 
-func (m *AppMetrics) Update(user, bucket, cnrID string, reqType RequestType, in, out uint64) {
+func (m *AppMetrics) Update(user, bucket, cnrID, ns string, reqType RequestType, in, out uint64) {
 	if !m.isEnabled() {
 		return
 	}
 
-	m.gate.Billing.apiStat.Update(user, bucket, cnrID, reqType, in, out)
+	m.gate.Billing.apiStat.Update(user, bucket, cnrID, ns, reqType, in, out)
 }
 
 func (m *AppMetrics) Statistic() *APIStatMetrics {

metrics/billing.go

@@ -71,6 +71,7 @@ type (
 	bucketKey struct {
 		name      string
 		cid       string
+		namespace string
 	}
 
 	bucketStat struct {
@@ -88,6 +89,7 @@ type (
 		User        string
 		Bucket      string
 		ContainerID string
+		Namespace   string
 	}
 
 	UserMetricsInfo struct {
@@ -108,7 +110,7 @@ type (
 	}
 )
 
-func (u *UsersAPIStats) Update(user, bucket, cnrID string, reqType RequestType, in, out uint64) {
+func (u *UsersAPIStats) Update(user, bucket, cnrID, ns string, reqType RequestType, in, out uint64) {
 	u.Lock()
 	defer u.Unlock()
 
@@ -127,6 +129,7 @@ func (u *UsersAPIStats) Update(user, bucket, cnrID string, reqType RequestType,
 	key := bucketKey{
 		name:      bucket,
 		cid:       cnrID,
+		namespace: ns,
 	}
 
 	bktStat := usersStat.buckets[key]
@@ -151,6 +154,7 @@ func (u *UsersAPIStats) DumpMetrics() UserMetrics {
 				User:        user,
 				Bucket:      key.name,
 				ContainerID: key.cid,
+				Namespace:   key.namespace,
 			}
 
 			if bktStat.InTraffic != 0 {
@@ -232,6 +236,7 @@ func (b *billingMetrics) Collect(ch chan<- prometheus.Metric) {
 			value.Bucket,
 			value.ContainerID,
 			value.Operation.String(),
+			value.Namespace,
 		)
 	}
 
@@ -244,6 +249,7 @@ func (b *billingMetrics) Collect(ch chan<- prometheus.Metric) {
 			value.Bucket,
 			value.ContainerID,
 			value.Type.String(),
+			value.Namespace,
 		)
 	}
 }

metrics/desc.go

@@ -64,7 +64,7 @@ var appMetricsDesc = map[string]map[string]Description{
 			Subsystem:      billingSubsystem,
 			Name:           userRequestsMetric,
 			Help:           "Accumulated user requests",
-			VariableLabels: []string{"user", "bucket", "cid", "operation"},
+			VariableLabels: []string{"user", "bucket", "cid", "operation", "namespace"},
 		},
 		userTrafficMetric: Description{
 			Type:           dto.MetricType_GAUGE,
@@ -72,7 +72,7 @@ var appMetricsDesc = map[string]map[string]Description{
 			Subsystem:      billingSubsystem,
 			Name:           userTrafficMetric,
 			Help:           "Accumulated user traffic",
-			VariableLabels: []string{"user", "bucket", "cid", "direction"},
+			VariableLabels: []string{"user", "bucket", "cid", "direction", "namespace"},
 		},
 	},
 	stateSubsystem: {