Make use of ethtool module optional

targetcli will now use the python-ethtool module if present to generate a
list of possible portal listening addresses, but will still work if it
is not present.

Signed-off-by: Andy Grover <agrover@redhat.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/targetcli/ui_target.py b/targetcli/ui_target.py
index 0c24146..7919c89 100644
--- a/targetcli/ui_target.py
+++ b/targetcli/ui_target.py
@@ -22,8 +22,11 @@ from rtslib import RTSLibError, RTSLibBrokenLink, utils
 from rtslib import NodeACL, NetworkPortal, MappedLUN
 from rtslib import Target, TPG, LUN
 from configshell import ExecutionError
-import ethtool
 import os
+try:
+    import ethtool
+except ImportError:
+    ethtool = None
 
 auth_params = ('userid', 'password', 'mutual_userid', 'mutual_password')
 discovery_params = auth_params + ("enable",)
@@ -1242,6 +1245,9 @@ class UIPortals(UINode):
         '''
 
         def list_eth_ips():
+            if not ethtool:
+                return []
+
             devcfgs = ethtool.get_interfaces_info(ethtool.get_devices())
             addrs = set()
             for d in devcfgs: