From 05a8582126280a0117d5f03a0106292ec43c1aef Mon Sep 17 00:00:00 2001
From: Guillaume Tardif <guillaume.tardif@docker.com>
Date: Wed, 5 Aug 2020 13:59:52 +0200
Subject: [PATCH] Forward all signals to child process

---
 cli/mobycli/exec.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/cli/mobycli/exec.go b/cli/mobycli/exec.go
index 179eb4a19..14a5f8b99 100644
--- a/cli/mobycli/exec.go
+++ b/cli/mobycli/exec.go
@@ -21,6 +21,7 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"os/signal"
 	"strings"
 
 	apicontext "github.com/docker/api/context"
@@ -61,6 +62,17 @@ func Exec() {
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr
 
+	s := make(chan os.Signal)
+	signal.Notify(s) // catch all signals
+	go func() {
+		for sig := range s {
+			err := cmd.Process.Signal(sig)
+			if err != nil {
+				fmt.Printf("WARNING could not forward signal %s to %s : %s\n", sig.String(), ComDockerCli, err.Error())
+			}
+		}
+	}()
+
 	if err := cmd.Run(); err != nil {
 		if exiterr, ok := err.(*exec.ExitError); ok {
 			os.Exit(exiterr.ExitCode())