From e28d817c9a776ff35fbea12cdbbf3916199f1af4 Mon Sep 17 00:00:00 2001
From: Antoine Eiche <lewo@abesis.fr>
Date: Tue, 25 Jul 2017 10:47:51 +0200
Subject: [PATCH] docker: lowercase image name and tag

The docker loading (docker 1.12.6) of an image with uppercase in the
name fails with the following message:
invalid reference format: repository name must be lowercase
---
 pkgs/build-support/docker/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/build-support/docker/default.nix b/pkgs/build-support/docker/default.nix
index 506ef7837a2e..0d02897da74a 100644
--- a/pkgs/build-support/docker/default.nix
+++ b/pkgs/build-support/docker/default.nix
@@ -409,8 +409,9 @@ rec {
         };
       result = runCommand "docker-image-${baseName}.tar.gz" {
         buildInputs = [ jshon pigz coreutils findutils ];
-        imageName = name;
-        imageTag = tag;
+        # Image name and tag must be lowercase
+        imageName = lib.toLower name;
+        imageTag = lib.toLower tag;
         inherit fromImage baseJson;
         layerClosure = writeReferencesToFile layer;
         passthru.buildArgs = args;