From aedc651903e3b20514c2fda056ff0bc9124b4d5d Mon Sep 17 00:00:00 2001
From: Graham Christensen <graham@grahamc.com>
Date: Thu, 20 Sep 2018 13:02:22 -0400
Subject: [PATCH] dockerTools.buildImage: test that created=now makes an
 unstable date

---
 nixos/tests/docker-tools.nix           | 7 +++++++
 pkgs/build-support/docker/examples.nix | 9 +++++++++
 2 files changed, 16 insertions(+)

diff --git a/nixos/tests/docker-tools.nix b/nixos/tests/docker-tools.nix
index db4eacc37287..5a7590cbf364 100644
--- a/nixos/tests/docker-tools.nix
+++ b/nixos/tests/docker-tools.nix
@@ -20,7 +20,10 @@ import ./make-test.nix ({ pkgs, ... }: {
     ''
       $docker->waitForUnit("sockets.target");
 
+      # Ensure Docker images use a stable date by default
       $docker->succeed("docker load --input='${pkgs.dockerTools.examples.bash}'");
+      $docker->succeed("[ '1970-01-01T00:00:01Z' = \"\$(docker inspect ${pkgs.dockerTools.examples.bash.imageName} | ${pkgs.jq}/bin/jq -r .[].Created)\" ]");
+
       $docker->succeed("docker run --rm ${pkgs.dockerTools.examples.bash.imageName} bash --version");
       $docker->succeed("docker rmi ${pkgs.dockerTools.examples.bash.imageName}");
 
@@ -51,5 +54,9 @@ import ./make-test.nix ({ pkgs, ... }: {
       $docker->succeed("docker run --rm runasrootextracommands cat extraCommands");
       $docker->succeed("docker run --rm runasrootextracommands cat runAsRoot");
       $docker->succeed("docker rmi '${pkgs.dockerTools.examples.runAsRootExtraCommands.imageName}'");
+
+      # Ensure Docker images can use an unstable date
+      $docker->succeed("docker load --input='${pkgs.dockerTools.examples.bash}'");
+      $docker->succeed("[ '1970-01-01T00:00:01Z' != \"\$(docker inspect ${pkgs.dockerTools.examples.unstableDate.imageName} | ${pkgs.jq}/bin/jq -r .[].Created)\" ]");
     '';
 })
diff --git a/pkgs/build-support/docker/examples.nix b/pkgs/build-support/docker/examples.nix
index ec2667310cdd..822e0dbb31f2 100644
--- a/pkgs/build-support/docker/examples.nix
+++ b/pkgs/build-support/docker/examples.nix
@@ -141,4 +141,13 @@ rec {
     runAsRoot = ''echo "(runAsRoot)" > runAsRoot'';
     extraCommands = ''echo "(extraCommand)" > extraCommands'';
   };
+
+  # 9. Ensure that setting created to now results in a date which
+  # isn't the epoch + 1
+  unstableDate = pkgs.dockerTools.buildImage {
+    name = "unstable-date";
+    tag = "latest";
+    contents = [ pkgs.coreutils ];
+    created = "now";
+  };
 }