From 375befb15cbbf418468d56554ee4b5de77232f3f Mon Sep 17 00:00:00 2001
From: Neha Yadav <inehayadav28@gmail.com>
Date: Tue, 11 Dec 2018 22:46:45 +0530
Subject: [PATCH] Make dependancy adal optional

---
 config/kube_config.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/config/kube_config.py b/config/kube_config.py
index 958959e3..e51697bc 100644
--- a/config/kube_config.py
+++ b/config/kube_config.py
@@ -21,7 +21,6 @@
 import tempfile
 import time
 
-import adal
 import google.auth
 import google.auth.transport.requests
 import oauthlib.oauth2
@@ -36,6 +35,11 @@
 from .config_exception import ConfigException
 from .dateutil import UTC, format_rfc3339, parse_rfc3339
 
+try:
+    import adal
+except ImportError:
+    pass
+
 EXPIRY_SKEW_PREVENTION_DELAY = datetime.timedelta(minutes=5)
 KUBE_CONFIG_DEFAULT_LOCATION = os.environ.get('KUBECONFIG', '~/.kube/config')
 _temp_files = {}
@@ -218,6 +222,9 @@ def _load_azure_token(self, provider):
         return self.token
 
     def _refresh_azure_token(self, config):
+        if 'adal' not in globals():
+            raise ImportError('refresh token error, adal library not imported')
+
         tenant = config['tenant-id']
         authority = 'https://login.microsoftonline.com/{}'.format(tenant)
         context = adal.AuthenticationContext(