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docker-container.nix
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docker-container.nix
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{ config, pkgs, ... }:
let
inherit (pkgs) writeScript;
pkgs2storeContents = map (x: { object = x; symlink = "none"; });
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
'';
}