From 878b738333fe76cf942f0d3a07068b7387f91d7d Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 12 Aug 2014 03:05:27 +0200
Subject: [PATCH] Containers: Clean up veth interfaces

---
 nixos/modules/virtualisation/containers.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/virtualisation/containers.nix b/nixos/modules/virtualisation/containers.nix
index 9d1817b82f53..a7256148f088 100644
--- a/nixos/modules/virtualisation/containers.nix
+++ b/nixos/modules/virtualisation/containers.nix
@@ -168,9 +168,13 @@ in
 
         preStart =
           ''
-            # Clean up existing machined registration.
+            # Clean up existing machined registration and interfaces.
             machinectl terminate "$INSTANCE" 2> /dev/null || true
 
+            if [ "$PRIVATE_NETWORK" = 1 ]; then
+              ip link del dev "ve-$INSTANCE" 2> /dev/null || true
+            fi
+
             mkdir -p -m 0755 $root/var/lib
 
             # Create a named pipe to get a signal when the container