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Add local IP address to Zipkin tracing #30

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Nov 1, 2017
Merged

Add local IP address to Zipkin tracing #30

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13 changes: 12 additions & 1 deletion cmd/paymentsvc/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,11 @@ package main
import (
"flag"
"fmt"
"net"
"net/http"
"os"
"os/signal"
"strings"
"syscall"

"github.com/go-kit/kit/log"
Expand Down Expand Up @@ -35,6 +37,15 @@ func main() {
logger = log.NewContext(logger).With("ts", log.DefaultTimestampUTC)
logger = log.NewContext(logger).With("caller", log.DefaultCaller)
}
// Find service local IP.
conn, err := net.Dial("udp", "8.8.8.8:80")
if err != nil {
logger.Log("err", err)
os.Exit(1)
}
localAddr := conn.LocalAddr().(*net.UDPAddr)
host := strings.Split(localAddr.String(), ":")[0]
defer conn.Close()
if *zip == "" {
tracer = stdopentracing.NoopTracer{}
} else {
Expand All @@ -49,7 +60,7 @@ func main() {
os.Exit(1)
}
tracer, err = zipkin.NewTracer(
zipkin.NewRecorder(collector, false, fmt.Sprintf("localhost:%v", port), ServiceName),
zipkin.NewRecorder(collector, false, fmt.Sprintf("%v:%v", host, port), ServiceName),
)
if err != nil {
logger.Log("err", err)
Expand Down