Add pull secret information to debug build issues

Signed-off-by: Daishan Peng <daishan@acorn.io>

Author: StrongMonkey

pkg/pullsecret/pullsecrets.go

@@ -13,6 +13,7 @@ import (
 	"github.com/google/go-containerregistry/pkg/authn"
 	"github.com/google/go-containerregistry/pkg/authn/kubernetes"
 	"github.com/google/go-containerregistry/pkg/name"
+	"github.com/sirupsen/logrus"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -71,6 +72,13 @@ func Keychain(ctx context.Context, c client.Reader, namespace string) (authn.Key
 		}
 		keychainSecrets = append(keychainSecrets, secrets...)
 	}
+
+	var pullSecretNameAndNamespace []string
+	for _, secret := range keychainSecrets {
+		pullSecretNameAndNamespace = append(pullSecretNameAndNamespace, fmt.Sprintf("%s/%s", secret.Namespace, secret.Name))
+	}
+
+	logrus.Infof("Using pull secrets: %v for builder namespace %s", pullSecretNameAndNamespace, namespace)
 	return kubernetes.NewFromPullSecrets(ctx, keychainSecrets)
 }