From be02a6a521ec75c3def32bb25aba5041b14af158 Mon Sep 17 00:00:00 2001
From: George Robinson <george.robinson@grafana.com>
Date: Thu, 9 Jan 2025 14:58:12 +0000
Subject: [PATCH] feat: add metrics limits frontend

---
 pkg/limits/frontend/metrics.go | 11 +++++++++++
 pkg/limits/frontend/service.go | 13 +++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)
 create mode 100644 pkg/limits/frontend/metrics.go

diff --git a/pkg/limits/frontend/metrics.go b/pkg/limits/frontend/metrics.go
new file mode 100644
index 0000000000000..8e91c280ae2c4
--- /dev/null
+++ b/pkg/limits/frontend/metrics.go
@@ -0,0 +1,11 @@
+package frontend
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+type Metrics struct{}
+
+func NewMetrics(_ prometheus.Registerer) *Metrics {
+	return &Metrics{}
+}
diff --git a/pkg/limits/frontend/service.go b/pkg/limits/frontend/service.go
index 14a7d4f1d7d5b..fa4e6151563f1 100644
--- a/pkg/limits/frontend/service.go
+++ b/pkg/limits/frontend/service.go
@@ -9,13 +9,18 @@ import (
 )
 
 type IngestLimits struct {
-	cfg    Config
-	logger log.Logger
+	cfg     Config
+	logger  log.Logger
+	metrics *Metrics
 	services.Service
 }
 
-func New(cfg Config, logger log.Logger, _ prometheus.Registerer) (*IngestLimits, error) {
-	l := &IngestLimits{}
+func New(cfg Config, logger log.Logger, r prometheus.Registerer) (*IngestLimits, error) {
+	l := &IngestLimits{
+		cfg:     cfg,
+		logger:  logger,
+		metrics: NewMetrics(r),
+	}
 	l.Service = services.NewBasicService(l.starting, l.running, l.stopping)
 	return l, nil
 }