From 0de3f678bc26df282aa75bfaff5ad2fa896a9672 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mislav=20Marohni=C4=87?= <mislav.marohnic@gmail.com>
Date: Tue, 1 Sep 2020 13:19:19 +0200
Subject: [PATCH] Only validate `--hostname` when flag was provided

---
 pkg/cmd/auth/login/login.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkg/cmd/auth/login/login.go b/pkg/cmd/auth/login/login.go
index d4732425f..0842b14c8 100644
--- a/pkg/cmd/auth/login/login.go
+++ b/pkg/cmd/auth/login/login.go
@@ -87,8 +87,10 @@ func NewCmdLogin(f *cmdutil.Factory, runF func(*LoginOptions) error) *cobra.Comm
 				}
 			}
 
-			if err := hostnameValidator(opts.Hostname); err != nil {
-				return &cmdutil.FlagError{Err: fmt.Errorf("error parsing --hostname: %w", err)}
+			if cmd.Flags().Changed("hostname") {
+				if err := hostnameValidator(opts.Hostname); err != nil {
+					return &cmdutil.FlagError{Err: fmt.Errorf("error parsing --hostname: %w", err)}
+				}
 			}
 
 			if runF != nil {