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plugin/trace : make zipkin HTTP reporter more configurable using Corefile (#5460)

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* plugin/trace : make zipkin HTTP reporter more configurable using Corefile

Signed-off-by: Ondřej Benkovský <ondrej.benkovsky@jamf.com>
This commit is contained in:
Ondřej Benkovský
2022-07-08 13:20:19 +02:00
committed by GitHub
parent 83adb8fa22
commit abc5ac8017
4 changed files with 105 additions and 33 deletions
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40
plugin/trace/trace.go
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@@ -8,6 +8,7 @@ import (
"net/http"
"sync"
"sync/atomic"
"time"
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/plugin"
@@ -66,17 +67,20 @@ var tagByProvider = map[string]traceTags{
type trace struct {
count uint64 // as per Go spec, needs to be first element in a struct
Next plugin.Handler
Endpoint string
EndpointType string
tracer ot.Tracer
serviceEndpoint string
serviceName string
clientServer bool
every uint64
datadogAnalyticsRate float64
Once sync.Once
tagSet traceTags
Next plugin.Handler
Endpoint string
EndpointType string
tracer ot.Tracer
serviceEndpoint string
serviceName string
clientServer bool
every uint64
datadogAnalyticsRate float64
zipkinMaxBacklogSize int
zipkinMaxBatchSize int
zipkinMaxBatchInterval time.Duration
Once sync.Once
tagSet traceTags
}
func (t *trace) Tracer() ot.Tracer {
@@ -109,8 +113,18 @@ func (t *trace) OnStartup() error {
}
func (t *trace) setupZipkin() error {
logOpt := zipkinhttp.Logger(stdlog.New(&loggerAdapter{log}, "", 0))
reporter := zipkinhttp.NewReporter(t.Endpoint, logOpt)
var opts []zipkinhttp.ReporterOption
opts = append(opts, zipkinhttp.Logger(stdlog.New(&loggerAdapter{log}, "", 0)))
if t.zipkinMaxBacklogSize != 0 {
opts = append(opts, zipkinhttp.MaxBacklog(t.zipkinMaxBacklogSize))
}
if t.zipkinMaxBatchSize != 0 {
opts = append(opts, zipkinhttp.BatchSize(t.zipkinMaxBatchSize))
}
if t.zipkinMaxBatchInterval != 0 {
opts = append(opts, zipkinhttp.BatchInterval(t.zipkinMaxBatchInterval))
}
reporter := zipkinhttp.NewReporter(t.Endpoint, opts...)
recorder, err := zipkin.NewEndpoint(t.serviceName, t.serviceEndpoint)
if err != nil {
log.Warningf("build Zipkin endpoint found err: %v", err)