From eebee951763424d932fe9895df8206824d37967f Mon Sep 17 00:00:00 2001
From: Dan Peebles <pumpkin@me.com>
Date: Tue, 24 Jan 2017 12:32:22 -0500
Subject: [PATCH] apache-kafka service: change default brokerId to -1

A default of 0 means that if you deploy two NixOS boxes with the default
configuration, the second will fail because the brokerId was already in
use. Using -1 instead tells it to pick one automatically at first start.
---
 nixos/modules/services/misc/apache-kafka.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/services/misc/apache-kafka.nix b/nixos/modules/services/misc/apache-kafka.nix
index c856d3294c01..cff053396885 100644
--- a/nixos/modules/services/misc/apache-kafka.nix
+++ b/nixos/modules/services/misc/apache-kafka.nix
@@ -38,7 +38,7 @@ in {
 
     brokerId = mkOption {
       description = "Broker ID.";
-      default = 0;
+      default = -1;
       type = types.int;
     };