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plugin/metrics: add 'server' label (#1682)

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* plugin/metrics: add 'server' label

This uses the new WithServer(ctx) to get the current server from the
context.

First in a larger refactor to make all plugins do this.

* compile

* compile

* lala test

* compile and test

* typos

* Dont duplicate the code
This commit is contained in:
Miek Gieben
2018-04-18 09:42:20 +01:00
committed by GitHub
parent 573ad62b77
commit 08443a9f00
10 changed files with 68 additions and 56 deletions
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32
plugin/metrics/vars/report.go
View File

@@ -3,13 +3,15 @@ package vars
import (
"time"
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/request"
"github.com/miekg/dns"
"golang.org/x/net/context"
)
// Report reports the metrics data associcated with request.
func Report(req request.Request, zone, rcode string, size int, start time.Time) {
func Report(ctx context.Context, req request.Request, zone, rcode string, size int, start time.Time) {
// Proto and Family.
net := req.Proto()
fam := "1"
@@ -17,25 +19,35 @@ func Report(req request.Request, zone, rcode string, size int, start time.Time)
fam = "2"
}
typ := req.QType()
server := WithServer(ctx)
RequestCount.WithLabelValues(zone, net, fam).Inc()
RequestDuration.WithLabelValues(zone).Observe(time.Since(start).Seconds())
typ := req.QType()
RequestCount.WithLabelValues(server, zone, net, fam).Inc()
RequestDuration.WithLabelValues(server, zone).Observe(time.Since(start).Seconds())
if req.Do() {
RequestDo.WithLabelValues(zone).Inc()
RequestDo.WithLabelValues(server, zone).Inc()
}
if _, known := monitorType[typ]; known {
RequestType.WithLabelValues(zone, dns.Type(typ).String()).Inc()
RequestType.WithLabelValues(server, zone, dns.Type(typ).String()).Inc()
} else {
RequestType.WithLabelValues(zone, other).Inc()
RequestType.WithLabelValues(server, zone, other).Inc()
}
ResponseSize.WithLabelValues(zone, net).Observe(float64(size))
RequestSize.WithLabelValues(zone, net).Observe(float64(req.Len()))
ResponseSize.WithLabelValues(server, zone, net).Observe(float64(size))
RequestSize.WithLabelValues(server, zone, net).Observe(float64(req.Len()))
ResponseRcode.WithLabelValues(zone, rcode).Inc()
ResponseRcode.WithLabelValues(server, zone, rcode).Inc()
}
// WithServer returns the current server handling the request.
func WithServer(ctx context.Context) string {
srv := ctx.Value(plugin.ServerCtx{})
if srv == nil {
return ""
}
return srv.(string)
}
var monitorType = map[uint16]bool{