From ab15238b110f6e8388d6be673188e25de293d397 Mon Sep 17 00:00:00 2001
From: maxiaoyu <maxiaoyu@kuaishou.com>
Date: Tue, 16 Apr 2024 20:03:25 +0800
Subject: [PATCH] update add bind view cachestats

Signed-off-by: maxiaoyu <maxiaoyu@kuaishou.com>
---
 bind/bind.go      |  1 +
 bind/json/json.go | 10 +++++++---
 bind_exporter.go  | 10 ++++++++++
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/bind/bind.go b/bind/bind.go
index c2379b4..ccbf79a 100644
--- a/bind/bind.go
+++ b/bind/bind.go
@@ -61,6 +61,7 @@ type Server struct {
 type View struct {
 	Name            string
 	Cache           []Gauge
+	CacheStats      []Counter
 	ResolverStats   []Counter
 	ResolverQueries []Counter
 }
diff --git a/bind/json/json.go b/bind/json/json.go
index d20ecd2..36eb465 100644
--- a/bind/json/json.go
+++ b/bind/json/json.go
@@ -47,9 +47,10 @@ type Statistics struct {
 	ZoneStats  Counters  `json:"zonestats"`
 	Views      map[string]struct {
 		Resolver struct {
-			Cache  Gauges   `json:"cache"`
-			Qtypes Counters `json:"qtypes"`
-			Stats  Counters `json:"stats"`
+			Cache      Gauges   `json:"cache"`
+			Qtypes     Counters `json:"qtypes"`
+			Stats      Counters `json:"stats"`
+			CacheStats Counters `json:"cachestats"`
 		} `json:"resolver"`
 	} `json:"views"`
 }
@@ -156,6 +157,9 @@ func (c *Client) Stats(groups ...bind.StatisticGroup) (bind.Statistics, error) {
 			for k, val := range view.Resolver.Stats {
 				v.ResolverStats = append(v.ResolverStats, bind.Counter{Name: k, Counter: val})
 			}
+			for k, val := range view.Resolver.CacheStats {
+				v.CacheStats = append(v.CacheStats, bind.Counter{Name: k, Counter: val})
+			}
 			s.Views = append(s.Views, v)
 		}
 	}
diff --git a/bind_exporter.go b/bind_exporter.go
index bac37ff..0a21035 100644
--- a/bind_exporter.go
+++ b/bind_exporter.go
@@ -77,6 +77,11 @@ var (
 		"Number of RRSets in Cache database.",
 		[]string{"view", "type"}, nil,
 	)
+	resolverCacheStats = prometheus.NewDesc(
+		prometheus.BuildFQName(namespace, resolver, "cache_stats"),
+		"Number of Cache Stats in Cache database.",
+		[]string{"view", "stat"}, nil,
+	)
 	resolverQueries = prometheus.NewDesc(
 		prometheus.BuildFQName(namespace, resolver, "queries_total"),
 		"Number of outgoing DNS queries.",
@@ -323,6 +328,11 @@ func (c *viewCollector) Collect(ch chan<- prometheus.Metric) {
 				resolverCache, prometheus.GaugeValue, float64(s.Gauge), v.Name, s.Name,
 			)
 		}
+		for _, s := range v.CacheStats {
+			ch <- prometheus.MustNewConstMetric(
+				resolverCacheStats, prometheus.GaugeValue, float64(s.Counter), v.Name, s.Name,
+			)
+		}
 		for _, s := range v.ResolverQueries {
 			ch <- prometheus.MustNewConstMetric(
 				resolverQueries, prometheus.CounterValue, float64(s.Counter), v.Name, s.Name,