mirror of https://github.com/linkerd/linkerd2.git
66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
package main
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import (
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"flag"
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"os"
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"os/signal"
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"syscall"
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"github.com/linkerd/linkerd2/controller/k8s"
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"github.com/linkerd/linkerd2/controller/tap"
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"github.com/linkerd/linkerd2/pkg/admin"
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"github.com/linkerd/linkerd2/pkg/flags"
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log "github.com/sirupsen/logrus"
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)
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func main() {
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addr := flag.String("addr", "127.0.0.1:8088", "address to serve on")
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metricsAddr := flag.String("metrics-addr", ":9998", "address to serve scrapable metrics on")
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kubeConfigPath := flag.String("kubeconfig", "", "path to kube config")
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controllerNamespace := flag.String("controller-namespace", "linkerd", "namespace in which Linkerd is installed")
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singleNamespace := flag.Bool("single-namespace", false, "only operate in the controller namespace")
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tapPort := flag.Uint("tap-port", 4190, "proxy tap port to connect to")
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flags.ConfigureAndParse()
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
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k8sClient, err := k8s.NewClientSet(*kubeConfigPath)
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if err != nil {
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log.Fatalf("failed to create Kubernetes client: %s", err)
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}
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restrictToNamespace := ""
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if *singleNamespace {
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restrictToNamespace = *controllerNamespace
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}
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k8sAPI := k8s.NewAPI(
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k8sClient,
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nil,
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restrictToNamespace,
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k8s.Deploy,
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k8s.Pod,
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k8s.RC,
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k8s.Svc,
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k8s.RS,
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)
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server, lis, err := tap.NewServer(*addr, *tapPort, *controllerNamespace, k8sAPI)
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if err != nil {
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log.Fatal(err.Error())
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}
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k8sAPI.Sync() // blocks until caches are synced
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go func() {
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log.Println("starting gRPC server on", *addr)
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server.Serve(lis)
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}()
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go admin.StartServer(*metricsAddr)
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<-stop
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log.Println("shutting down gRPC server on", *addr)
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server.GracefulStop()
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}
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