X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/168fedbe65526ff3eabf155039d6e55a8f5eadf6..f5162efc3578d0420e869e3fcbda46454a855909:/lib/service/cmd.go?ds=sidebyside

diff --git a/lib/service/cmd.go b/lib/service/cmd.go
index 7f2f78ee9a..40db4f9c7c 100644
--- a/lib/service/cmd.go
+++ b/lib/service/cmd.go
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: Apache-2.0
 
-// package service provides a cmd.Handler that brings up a system service.
+// Package service provides a cmd.Handler that brings up a system service.
 package service
 
 import (
@@ -12,6 +12,7 @@ import (
 	"io"
 	"net"
 	"net/http"
+	_ "net/http/pprof"
 	"net/url"
 	"os"
 	"strings"
@@ -29,6 +30,7 @@ import (
 type Handler interface {
 	http.Handler
 	CheckHealth() error
+	Done() <-chan struct{}
 }
 
 type NewHandlerFunc func(_ context.Context, _ *arvados.Cluster, token string, registry *prometheus.Registry) Handler
@@ -69,6 +71,7 @@ func (c *command) RunCommand(prog string, args []string, stdin io.Reader, stdout
 	loader := config.NewLoader(stdin, log)
 	loader.SetupFlags(flags)
 	versionFlag := flags.Bool("version", false, "Write version information to stdout and exit 0")
+	pprofAddr := flags.String("pprof", "", "Serve Go profile data at `[addr]:port`")
 	err = flags.Parse(args)
 	if err == flag.ErrHelp {
 		err = nil
@@ -79,6 +82,12 @@ func (c *command) RunCommand(prog string, args []string, stdin io.Reader, stdout
 		return cmd.Version.RunCommand(prog, args, stdin, stdout, stderr)
 	}
 
+	if *pprofAddr != "" {
+		go func() {
+			log.Println(http.ListenAndServe(*pprofAddr, nil))
+		}()
+	}
+
 	if strings.HasSuffix(prog, "controller") {
 		// Some config-loader checks try to make API calls via
 		// controller. Those can't be expected to work if this
@@ -148,9 +157,15 @@ func (c *command) RunCommand(prog string, args []string, stdin io.Reader, stdout
 		logger.WithError(err).Errorf("error notifying init daemon")
 	}
 	go func() {
+		// Shut down server if caller cancels context
 		<-ctx.Done()
 		srv.Close()
 	}()
+	go func() {
+		// Shut down server if handler dies
+		<-handler.Done()
+		srv.Close()
+	}()
 	err = srv.Wait()
 	if err != nil {
 		return 1
@@ -158,8 +173,6 @@ func (c *command) RunCommand(prog string, args []string, stdin io.Reader, stdout
 	return 0
 }
 
-const rfc3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"
-
 func getListenAddr(svcs arvados.Services, prog arvados.ServiceName, log logrus.FieldLogger) (arvados.URL, error) {
 	svc, ok := svcs.Map()[prog]
 	if !ok {
@@ -170,6 +183,9 @@ func getListenAddr(svcs arvados.Services, prog arvados.ServiceName, log logrus.F
 	} else if url, err := url.Parse(want); err != nil {
 		return arvados.URL{}, fmt.Errorf("$ARVADOS_SERVICE_INTERNAL_URL (%q): %s", want, err)
 	} else {
+		if url.Path == "" {
+			url.Path = "/"
+		}
 		return arvados.URL(*url), nil
 	}