/
main.go
58 lines (48 loc) · 2.04 KB
/
main.go
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package main
import (
"context"
"flag"
"net"
"os"
"os/signal"
"syscall"
"time"
"github.com/linkerd/linkerd2/controller/api/public"
"github.com/linkerd/linkerd2/pkg/admin"
"github.com/linkerd/linkerd2/pkg/flags"
"github.com/linkerd/linkerd2/web/srv"
log "github.com/sirupsen/logrus"
)
func main() {
addr := flag.String("addr", ":8084", "address to serve on")
metricsAddr := flag.String("metrics-addr", ":9994", "address to serve scrapable metrics on")
kubernetesApiHost := flag.String("api-addr", ":8085", "host address of kubernetes public api")
templateDir := flag.String("template-dir", "templates", "directory to search for template files")
staticDir := flag.String("static-dir", "app/dist", "directory to search for static files")
uuid := flag.String("uuid", "", "unique linkerd install id")
reload := flag.Bool("reload", true, "reloading set to true or false")
webpackDevServer := flag.String("webpack-dev-server", "", "use webpack to serve static assets; frontend will use this instead of static-dir")
controllerNamespace := flag.String("controller-namespace", "linkerd", "namespace in which Linkerd is installed")
flags.ConfigureAndParse()
_, _, err := net.SplitHostPort(*kubernetesApiHost) // Verify kubernetesApiHost is of the form host:port.
if err != nil {
log.Fatalf("failed to parse API server address: %s", *kubernetesApiHost)
}
client, err := public.NewInternalClient(*controllerNamespace, *kubernetesApiHost)
if err != nil {
log.Fatalf("failed to construct client for API server URL %s", *kubernetesApiHost)
}
stop := make(chan os.Signal, 1)
signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
server := srv.NewServer(*addr, *templateDir, *staticDir, *uuid, *controllerNamespace, *webpackDevServer, *reload, client)
go func() {
log.Infof("starting HTTP server on %+v", *addr)
server.ListenAndServe()
}()
go admin.StartServer(*metricsAddr, nil)
<-stop
log.Infof("shutting down HTTP server on %+v", *addr)
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
server.Shutdown(ctx)
}