From ba8d6ac630ba04f9bf017b743af5e8251dd86c84 Mon Sep 17 00:00:00 2001
From: Adam Bolte <adam.bolte@sitepoint.com>
Date: Mon, 21 Oct 2019 16:53:36 +1100
Subject: [PATCH] Truncate config on writes

Fix for #485.
---
 lib/vagrant-lxc/driver.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/vagrant-lxc/driver.rb b/lib/vagrant-lxc/driver.rb
index bafed55..f2c2721 100644
--- a/lib/vagrant-lxc/driver.rb
+++ b/lib/vagrant-lxc/driver.rb
@@ -270,7 +270,7 @@ module Vagrant
       def write_config(contents)
         confpath = base_path.join('config').to_s
         begin
-          File.open(confpath, File::RDWR) do |file|
+          File.open(confpath, File::WRONLY|File::TRUNC) do |file|
             file.write contents
           end
         rescue