Update vendor

vendor.conf

@@ -3,5 +3,5 @@ github.com/rancher/types
 
 k8s.io/kubernetes v1.8.3 transitive=true,staging=true
 bitbucket.org/ww/goautoneg a547fc61f48d567d5b4ec6f8aee5573d8efce11d https://github.com/rancher/goautoneg.git
-github.com/rancher/norman 9be32ca0a540082e23a24a2b46127b5c205db262
+github.com/rancher/norman 391a96f33dd0b1f893f8b194e2d7cad3e26d1351
 golang.org/x/sync fd80eb99c8f653c847d294a001bdf2a3a6f768f5

vendor/github.com/rancher/norman/signal/sigterm.go

@@ -0,0 +1,28 @@
+package signal
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/sirupsen/logrus"
+)
+
+func SigTermCancelContext(ctx context.Context) context.Context {
+	term := make(chan os.Signal)
+	signal.Notify(term, os.Interrupt, syscall.SIGTERM)
+
+	ctx, cancel := context.WithCancel(ctx)
+
+	go func() {
+		select {
+		case <-term:
+			logrus.Infof("Received SIGTERM, cancelling")
+			cancel()
+		case <-ctx.Done():
+		}
+	}()
+
+	return ctx
+}