add suggestions from review

Signed-off-by: leonnicolas <leonloechner@gmx.de>

cmd/kgctl/main.go

@@ -21,6 +21,7 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/go-kit/kit/log"
 	"github.com/spf13/cobra"
 	apiextensions "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
 	"k8s.io/client-go/kubernetes"
@@ -88,7 +89,7 @@ func runRoot(_ *cobra.Command, _ []string) error {
 		c := kubernetes.NewForConfigOrDie(config)
 		kc := kiloclient.NewForConfigOrDie(config)
 		ec := apiextensions.NewForConfigOrDie(config)
-		opts.backend = k8s.New(c, kc, ec, topologyLabel)
+		opts.backend = k8s.New(c, kc, ec, topologyLabel, log.NewNopLogger())
 	default:
 		return fmt.Errorf("backend %v unknown; posible values are: %s", backend, availableBackends)
 	}

cmd/kgctl/showconf.go

@@ -183,17 +183,23 @@ func runShowConfNode(_ *cobra.Command, args []string) error {
 		fallthrough
 	case outputFormatYAML:
 		p := t.AsPeer()
+		if p == nil {
+			return errors.New("cannot generate config from nil peer")
+		}
 		p.AllowedIPs = append(p.AllowedIPs, showConfOpts.allowedIPs...)
 		p.DeduplicateIPs()
-		k8sp := translatePeer(&p)
+		k8sp := translatePeer(p)
 		k8sp.Name = hostname
 		return showConfOpts.serializer.Encode(k8sp, os.Stdout)
 	case outputFormatWireGuard:
 		p := t.AsPeer()
+		if p == nil {
+			return errors.New("cannot generate config from nil peer")
+		}
 		p.AllowedIPs = append(p.AllowedIPs, showConfOpts.allowedIPs...)
 		p.DeduplicateIPs()
 		c, err := (&wireguard.Conf{
-			Peers: []wireguard.Peer{p},
+			Peers: []wireguard.Peer{*p},
 		}).Bytes()
 		if err != nil {
 			return fmt.Errorf("failed to generate configuration: %v", err)