1 files changed, 111 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/coredns/metrics.go b/src/go/collectors/go.d.plugin/modules/coredns/metrics.go
new file mode 100644
index 000000000..1c72041bf
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/coredns/metrics.go
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package coredns
+
+import (
+	mtx "github.com/netdata/netdata/go/go.d.plugin/pkg/metrics"
+)
+
+func newMetrics() *metrics {
+	mx := &metrics{}
+	mx.PerServer = make(map[string]*requestResponse)
+	mx.PerZone = make(map[string]*requestResponse)
+
+	return mx
+}
+
+type metrics struct {
+	Panic         mtx.Gauge                   `stm:"panic_total"`
+	NoZoneDropped mtx.Gauge                   `stm:"no_matching_zone_dropped_total"`
+	Summary       requestResponse             `stm:""`
+	PerServer     map[string]*requestResponse `stm:""`
+	PerZone       map[string]*requestResponse `stm:""`
+}
+
+type requestResponse struct {
+	Request  request  `stm:"request"`
+	Response response `stm:"response"`
+}
+
+type request struct {
+	Total     mtx.Gauge `stm:"total"`
+	PerStatus struct {
+		Processed mtx.Gauge `stm:"processed"`
+		Dropped   mtx.Gauge `stm:"dropped"`
+	} `stm:"per_status"`
+	PerProto struct {
+		UDP mtx.Gauge `stm:"udp"`
+		TCP mtx.Gauge `stm:"tcp"`
+	} `stm:"per_proto"`
+	PerIPFamily struct {
+		IPv4 mtx.Gauge `stm:"v4"`
+		IPv6 mtx.Gauge `stm:"v6"`
+	} `stm:"per_ip_family"`
+	// https://github.com/coredns/coredns/blob/master/plugin/metrics/vars/report.go
+	PerType struct {
+		A      mtx.Gauge `stm:"A"`
+		AAAA   mtx.Gauge `stm:"AAAA"`
+		MX     mtx.Gauge `stm:"MX"`
+		SOA    mtx.Gauge `stm:"SOA"`
+		CNAME  mtx.Gauge `stm:"CNAME"`
+		PTR    mtx.Gauge `stm:"PTR"`
+		TXT    mtx.Gauge `stm:"TXT"`
+		NS     mtx.Gauge `stm:"NS"`
+		SRV    mtx.Gauge `stm:"SRV"`
+		DS     mtx.Gauge `stm:"DS"`
+		DNSKEY mtx.Gauge `stm:"DNSKEY"`
+		RRSIG  mtx.Gauge `stm:"RRSIG"`
+		NSEC   mtx.Gauge `stm:"NSEC"`
+		NSEC3  mtx.Gauge `stm:"NSEC3"`
+		IXFR   mtx.Gauge `stm:"IXFR"`
+		ANY    mtx.Gauge `stm:"ANY"`
+		Other  mtx.Gauge `stm:"other"`
+	} `stm:"per_type"`
+	//Duration struct {
+	//	LE000025 mtx.Gauge `stm:"0.00025"`
+	//	LE00005  mtx.Gauge `stm:"0.0005"`
+	//	LE0001   mtx.Gauge `stm:"0.001"`
+	//	LE0002   mtx.Gauge `stm:"0.002"`
+	//	LE0004   mtx.Gauge `stm:"0.004"`
+	//	LE0008   mtx.Gauge `stm:"0.008"`
+	//	LE0016   mtx.Gauge `stm:"0.016"`
+	//	LE0032   mtx.Gauge `stm:"0.032"`
+	//	LE0064   mtx.Gauge `stm:"0.064"`
+	//	LE0128   mtx.Gauge `stm:"0.128"`
+	//	LE0256   mtx.Gauge `stm:"0.256"`
+	//	LE0512   mtx.Gauge `stm:"0.512"`
+	//	LE1024   mtx.Gauge `stm:"1.024"`
+	//	LE2048   mtx.Gauge `stm:"2.048"`
+	//	LE4096   mtx.Gauge `stm:"4.096"`
+	//	LE8192   mtx.Gauge `stm:"8.192"`
+	//	LEInf    mtx.Gauge `stm:"+Inf"`
+	//} `stm:"duration_seconds_bucket"`
+}
+
+// https://github.com/miekg/dns/blob/master/types.go
+// https://github.com/miekg/dns/blob/master/msg.go#L169
+type response struct {
+	Total    mtx.Gauge `stm:"total"`
+	PerRcode struct {
+		NOERROR   mtx.Gauge `stm:"NOERROR"`
+		FORMERR   mtx.Gauge `stm:"FORMERR"`
+		SERVFAIL  mtx.Gauge `stm:"SERVFAIL"`
+		NXDOMAIN  mtx.Gauge `stm:"NXDOMAIN"`
+		NOTIMP    mtx.Gauge `stm:"NOTIMP"`
+		REFUSED   mtx.Gauge `stm:"REFUSED"`
+		YXDOMAIN  mtx.Gauge `stm:"YXDOMAIN"`
+		YXRRSET   mtx.Gauge `stm:"YXRRSET"`
+		NXRRSET   mtx.Gauge `stm:"NXRRSET"`
+		NOTAUTH   mtx.Gauge `stm:"NOTAUTH"`
+		NOTZONE   mtx.Gauge `stm:"NOTZONE"`
+		BADSIG    mtx.Gauge `stm:"BADSIG"`
+		BADKEY    mtx.Gauge `stm:"BADKEY"`
+		BADTIME   mtx.Gauge `stm:"BADTIME"`
+		BADMODE   mtx.Gauge `stm:"BADMODE"`
+		BADNAME   mtx.Gauge `stm:"BADNAME"`
+		BADALG    mtx.Gauge `stm:"BADALG"`
+		BADTRUNC  mtx.Gauge `stm:"BADTRUNC"`
+		BADCOOKIE mtx.Gauge `stm:"BADCOOKIE"`
+		Other     mtx.Gauge `stm:"other"`
+	} `stm:"per_rcode"`
+}