mirror of https://github.com/linkerd/linkerd2.git
97 lines
2.6 KiB
Go
97 lines
2.6 KiB
Go
package main
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import (
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"context"
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"flag"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"github.com/linkerd/linkerd2/controller/api/public"
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spclient "github.com/linkerd/linkerd2/controller/gen/client/clientset/versioned"
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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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promApi "github.com/prometheus/client_golang/api"
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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", ":8085", "address to serve on")
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kubeConfigPath := flag.String("kubeconfig", "", "path to kube config")
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prometheusURL := flag.String("prometheus-url", "http://127.0.0.1:9090", "prometheus url")
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metricsAddr := flag.String("metrics-addr", ":9995", "address to serve scrapable metrics on")
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tapAddr := flag.String("tap-addr", "127.0.0.1:8088", "address of tap service")
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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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ignoredNamespaces := flag.String("ignore-namespaces", "kube-system", "comma separated list of namespaces to not list pods from")
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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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tapClient, tapConn, err := tap.NewClient(*tapAddr)
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if err != nil {
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log.Fatal(err.Error())
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}
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defer tapConn.Close()
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k8sClient, err := k8s.NewClientSet(*kubeConfigPath)
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if err != nil {
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log.Fatal(err.Error())
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}
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var spClient *spclient.Clientset
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restrictToNamespace := ""
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resources := []k8s.APIResource{k8s.DS, k8s.Deploy, k8s.Pod, k8s.RC, k8s.RS, k8s.Svc}
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if *singleNamespace {
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restrictToNamespace = *controllerNamespace
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} else {
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spClient, err = k8s.NewSpClientSet(*kubeConfigPath)
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if err != nil {
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log.Fatal(err.Error())
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}
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resources = append(resources, k8s.SP)
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}
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k8sAPI := k8s.NewAPI(
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k8sClient,
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spClient,
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restrictToNamespace,
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resources...,
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)
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prometheusClient, err := promApi.NewClient(promApi.Config{Address: *prometheusURL})
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if err != nil {
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log.Fatal(err.Error())
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}
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server := public.NewServer(
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*addr,
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prometheusClient,
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tapClient,
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k8sAPI,
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*controllerNamespace,
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strings.Split(*ignoredNamespaces, ","),
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*singleNamespace,
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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.Infof("starting HTTP server on %+v", *addr)
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server.ListenAndServe()
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}()
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go admin.StartServer(*metricsAddr)
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<-stop
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log.Infof("shutting down HTTP server on %+v", *addr)
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server.Shutdown(context.Background())
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}
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