linkerd2/controller/cmd/tap/main.go

62 lines
1.4 KiB
Go

package main
import (
"flag"
"os"
"os/signal"
"syscall"
"github.com/linkerd/linkerd2/controller/k8s"
"github.com/linkerd/linkerd2/controller/tap"
"github.com/linkerd/linkerd2/pkg/admin"
"github.com/linkerd/linkerd2/pkg/flags"
log "github.com/sirupsen/logrus"
)
func main() {
addr := flag.String("addr", "127.0.0.1:8088", "address to serve on")
metricsAddr := flag.String("metrics-addr", ":9998", "address to serve scrapable metrics on")
kubeConfigPath := flag.String("kubeconfig", "", "path to kube config")
controllerNamespace := flag.String("controller-namespace", "linkerd", "namespace in which Linkerd is installed")
tapPort := flag.Uint("tap-port", 4190, "proxy tap port to connect to")
flags.ConfigureAndParse()
stop := make(chan os.Signal, 1)
signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
k8sAPI, err := k8s.InitializeAPI(
*kubeConfigPath,
k8s.DS,
k8s.SS,
k8s.Deploy,
k8s.Job,
k8s.NS,
k8s.Pod,
k8s.RC,
k8s.Svc,
k8s.RS,
)
if err != nil {
log.Fatalf("Failed to initialize K8s API: %s", err)
}
server, lis, err := tap.NewServer(*addr, *tapPort, *controllerNamespace, k8sAPI)
if err != nil {
log.Fatal(err.Error())
}
k8sAPI.Sync() // blocks until caches are synced
go func() {
log.Println("starting gRPC server on", *addr)
server.Serve(lis)
}()
go admin.StartServer(*metricsAddr)
<-stop
log.Println("shutting down gRPC server on", *addr)
server.GracefulStop()
}