From 1e4fa227fe434c2042a2c690f62a7072afa36e93 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 3 Apr 2014 16:25:21 +0200
Subject: [PATCH] nixos-container: Don't destroy declarative containers

---
 nixos/modules/virtualisation/nixos-container.pl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nixos/modules/virtualisation/nixos-container.pl b/nixos/modules/virtualisation/nixos-container.pl
index b08ed0766583..e42a3edd0243 100644
--- a/nixos/modules/virtualisation/nixos-container.pl
+++ b/nixos/modules/virtualisation/nixos-container.pl
@@ -1,6 +1,7 @@
 #! @perl@
 
 use strict;
+use POSIX;
 use File::Path;
 use File::Slurp;
 use Fcntl ':flock';
@@ -148,6 +149,9 @@ sub stopContainer {
 }
 
 if ($action eq "destroy") {
+    die "$0: cannot destroy declarative container (remove it from your configuration.nix instead)\n"
+        unless POSIX::access($confFile, &POSIX::W_OK);
+
     my $root = "/var/lib/containers/$containerName";
     my $profileDir = "/nix/var/nix/profiles/per-container/$containerName";