From d0ef94258dff16549846575ef217e1af2644e53c Mon Sep 17 00:00:00 2001
From: Nikola Knezevic <nikola@knezevic.ch>
Date: Wed, 7 Aug 2019 10:31:13 +0200
Subject: [PATCH] Make hostname in tests overridable

The original form effectively forbade any NixOS configuration that is under
test to explicitly set the hostname.
---
 nixos/lib/build-vms.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/lib/build-vms.nix b/nixos/lib/build-vms.nix
index 6c92aa1ffa2f..b622a4d59e89 100644
--- a/nixos/lib/build-vms.nix
+++ b/nixos/lib/build-vms.nix
@@ -67,7 +67,7 @@ rec {
             in
             { key = "ip-address";
               config =
-                { networking.hostName = m.fst;
+                { networking.hostName = mkDefault m.fst;
 
                   networking.interfaces = listToAttrs interfaces;