Add extra_args for tempest image
Change-Id: Ife44623b358587a6fe232580d21beca22555858e
diff --git a/tcp_tests/settings.py b/tcp_tests/settings.py
index 347e8e6..6a4a885 100644
--- a/tcp_tests/settings.py
+++ b/tcp_tests/settings.py
@@ -82,6 +82,7 @@
TEMPEST_PATTERN = os.environ.get('TEMPEST_PATTERN', 'tempest')
TEMPEST_TIMEOUT = int(os.environ.get('TEMPEST_TIMEOUT', 60 * 60 * 6))
TEMPEST_THREADS = int(os.environ.get('TEMPEST_THREADS', 2))
+TEMPEST_EXTRA_ARGS = os.environ.get('TEMPEST_EXTRA_ARGS', '')
TEMPEST_TARGET = os.environ.get('TEMPEST_TARGET', 'gtw01')
SALT_VERSION = os.environ.get('SALT_VERSION', '2017.7')