Retry router removal on conflict
Manila injects share network to tenant router underhood,
the interface removal is asynchronous in manila. This is
only one example when conflict migh happen. Since rest assumes
we can retry on Conflicts, do it here.
Related-Prod: PRODX-27590
Change-Id: I3c284673abf13e2c01ebca047c353de1207caf12
diff --git a/requirements.txt b/requirements.txt
index c4c7fcc..6908527 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,3 +21,4 @@
PrettyTable>=0.7.1 # BSD
urllib3>=1.21.1 # MIT
debtcollector>=1.2.0 # Apache-2.0
+tenacity>=4.4.0 # Apache-2.0