1 files changed, 61 insertions, 0 deletions
diff --git a/nixos/modules/profiles/docker-container.nix b/nixos/modules/profiles/docker-container.nix
new file mode 100644
index 00000000000..183645de36f
--- /dev/null
+++ b/nixos/modules/profiles/docker-container.nix
@@ -0,0 +1,61 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let inherit (pkgs) writeScript; in
+
+let
+ pkgs2storeContents = l : map (x: { object = x; symlink = "none"; }) l;
+
+in {
+  # Docker image config.
+  imports = [
+    ../installer/cd-dvd/channel.nix
+    ./minimal.nix
+    ./clone-config.nix
+  ];
+
+  # Create the tarball
+  system.build.tarball = pkgs.callPackage ../../lib/make-system-tarball.nix {
+    contents = [
+      {
+        source = "${config.system.build.toplevel}/.";
+        target = "./";
+      }
+    ];
+    extraArgs = "--owner=0";
+
+    # Add init script to image
+    storeContents = pkgs2storeContents [
+      config.system.build.toplevel
+      pkgs.stdenv
+    ];
+
+    # Some container managers like lxc need these
+    extraCommands =
+      let script = writeScript "extra-commands.sh" ''
+            rm etc
+            mkdir -p proc sys dev etc
+          '';
+      in script;
+  };
+
+  boot.isContainer = true;
+  boot.postBootCommands =
+    ''
+      # After booting, register the contents of the Nix store in the Nix
+      # database.
+      if [ -f /nix-path-registration ]; then
+        ${config.nix.package.out}/bin/nix-store --load-db < /nix-path-registration &&
+        rm /nix-path-registration
+      fi
+
+      # nixos-rebuild also requires a "system" profile
+      ${config.nix.package.out}/bin/nix-env -p /nix/var/nix/profiles/system --set /run/current-system
+    '';
+
+  # Install new init script
+  system.activationScripts.installInitScript = ''
+    ln -fs $systemConfig/init /init
+  '';
+}