T-REX installer preserve env variables

This can be usefull for variables like http_proxy.

Change-Id: I31128d2a57c961c6d888b6693b68fb57bde11436
Signed-off-by: Miroslav Miklus <mmiklus@cisco.com>

diff --git a/resources/libraries/python/TrafficGenerator.py b/resources/libraries/python/TrafficGenerator.py
index c28e8ec..459a6cc 100644 (file)
--- a/resources/libraries/python/TrafficGenerator.py
+++ b/resources/libraries/python/TrafficGenerator.py
@@ -161,7 +161,7 @@ class TrafficGenerator(object):
             ssh.connect(tg_node)
 
             (ret, stdout, stderr) = ssh.exec_command(
-                "sudo sh -c '{}/resources/tools/t-rex/"
+                "sudo -E sh -c '{}/resources/tools/t-rex/"
                 "t-rex-installer.sh'".format(Constants.REMOTE_FW_DIR),
                 timeout=1800)
             if int(ret) != 0: