cmd/natc: expose netstack metrics in client metrics in natc

Updates tailscale/corp#25169 Signed-off-by: James Tucker <james@tailscale.com>
2025-01-23 16:31:40 -08:00 · 2025-01-23 16:31:40 -08:00 · 82e41ddc42
commit 82e41ddc42
parent 2089f4b603
1 changed files with 4 additions and 0 deletions
--- a/cmd/natc/natc.go
+++ b/cmd/natc/natc.go
@ -10,6 +10,7 @@
 	"context"
 	"encoding/binary"
 	"errors"
+	"expvar"
 	"flag"
 	"fmt"
 	"log"
@ -159,6 +160,9 @@ func main() {
 	if err := ns.SetTransportProtocolOption(tcp.ProtocolNumber, &mslOpt); err != nil {
 		log.Fatalf("could not set TCP MSL: %v", err)
 	}
+	if *debugPort != 0 {
+		expvar.Publish("netstack", ns.ExpVar())
+	}

 	lc, err := ts.LocalClient()
 	if err != nil {