6262dec8aa
This introduces a new Nix derivation that, given an attribute set of layer hashes mapped to store paths, will create a layer tarball for each of the store paths. This is going to be used by the builder to create layers that are not present in the cache. Relates to #50.
104 lines
3.3 KiB
Nix
104 lines
3.3 KiB
Nix
# Copyright 2019 Google LLC
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# https://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
{ pkgs ? import <nixpkgs> { }
|
|
, preLaunch ? ""
|
|
, extraPackages ? [] }:
|
|
|
|
with pkgs;
|
|
|
|
let builders = import ./build-image { inherit pkgs; };
|
|
in rec {
|
|
# Go implementation of the Nixery server which implements the
|
|
# container registry interface.
|
|
#
|
|
# Users will usually not want to use this directly, instead see the
|
|
# 'nixery' derivation below, which automatically includes runtime
|
|
# data dependencies.
|
|
nixery-server = callPackage ./server { };
|
|
|
|
# Implementation of the Nix image building logic
|
|
nixery-build-image = builders.build-image;
|
|
nixery-build-layers = builders.build-layers;
|
|
|
|
# Use mdBook to build a static asset page which Nixery can then
|
|
# serve. This is primarily used for the public instance at
|
|
# nixery.dev.
|
|
nixery-book = callPackage ./docs { };
|
|
|
|
# Wrapper script running the Nixery server with the above two data
|
|
# dependencies configured.
|
|
#
|
|
# In most cases, this will be the derivation a user wants if they
|
|
# are installing Nixery directly.
|
|
nixery-bin = writeShellScriptBin "nixery" ''
|
|
export WEB_DIR="${nixery-book}"
|
|
export PATH="${nixery-build-image}/bin:$PATH"
|
|
exec ${nixery-server}/bin/nixery
|
|
'';
|
|
|
|
# Container image containing Nixery and Nix itself. This image can
|
|
# be run on Kubernetes, published on AppEngine or whatever else is
|
|
# desired.
|
|
nixery-image = let
|
|
# Wrapper script for the wrapper script (meta!) which configures
|
|
# the container environment appropriately.
|
|
#
|
|
# Most importantly, sandboxing is disabled to avoid privilege
|
|
# issues in containers.
|
|
nixery-launch-script = writeShellScriptBin "nixery" ''
|
|
set -e
|
|
export PATH=${coreutils}/bin:$PATH
|
|
export NIX_SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt
|
|
mkdir -p /tmp
|
|
|
|
# Create the build user/group required by Nix
|
|
echo 'nixbld:x:30000:nixbld' >> /etc/group
|
|
echo 'nixbld:x:30000:30000:nixbld:/tmp:/bin/bash' >> /etc/passwd
|
|
echo 'root:x:0:0:root:/root:/bin/bash' >> /etc/passwd
|
|
echo 'root:x:0:' >> /etc/group
|
|
|
|
# Disable sandboxing to avoid running into privilege issues
|
|
mkdir -p /etc/nix
|
|
echo 'sandbox = false' >> /etc/nix/nix.conf
|
|
|
|
# In some cases users building their own image might want to
|
|
# customise something on the inside (e.g. set up an environment
|
|
# for keys or whatever).
|
|
#
|
|
# This can be achieved by setting a 'preLaunch' script.
|
|
${preLaunch}
|
|
|
|
exec ${nixery-bin}/bin/nixery
|
|
'';
|
|
in dockerTools.buildLayeredImage {
|
|
name = "nixery";
|
|
config.Cmd = [ "${nixery-launch-script}/bin/nixery" ];
|
|
maxLayers = 96;
|
|
contents = [
|
|
bashInteractive
|
|
cacert
|
|
coreutils
|
|
git
|
|
gnutar
|
|
gzip
|
|
iana-etc
|
|
nix
|
|
nixery-build-image
|
|
nixery-launch-script
|
|
openssh
|
|
zlib
|
|
] ++ extraPackages;
|
|
};
|
|
}
|