brctl: Use "ip" to check if a bridge exists

The interface of "brctl" was changed in fc27. When calling "brctl show X", if X doesn't exists, the return code is non-zero. In order to overcome this issue, check if the bridge exists using "ip" command. Signed-off-by: gbenhaim <[email protected]>
lago-project · Mar 20, 2018 · cd89b87 · cd89b87
1 parent 802e6d1
commit cd89b87
Showing 1 changed file with 11 additions and 2 deletions.
diff --git a/lago/brctl.py b/lago/brctl.py
@@ -56,5 +56,14 @@ def destroy(name):
 
 
 def exists(name):
-    ret, out, err = _brctl('show', name)
-    return err == ''
+    ret, out, _ = utils.run_command(
+        ['ip', '-o', 'link', 'show', 'type', 'bridge']
+    )
+    if ret:
+        raise RuntimeError('Failed to check if bridge {} exists'.format(name))
+
+    for entry in out.splitlines():
+        if name == entry.split(':')[1].strip():
+            return True
+
+    return False