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|
{
lib,
config,
pkgs,
...
}:
{
meta = {
teams = [ lib.teams.lxc ];
};
imports = [
./lxc-instance-common.nix
(lib.mkRemovedOptionModule [
"virtualisation"
"lxc"
"nestedContainer"
] "")
(lib.mkRemovedOptionModule [
"virtualisation"
"lxc"
"privilegedContainer"
] "")
];
options = { };
config =
{
boot.isContainer = true;
systemd.services.register-nix-paths = {
description = "Register Nix Store Paths";
unitConfig = {
DefaultDependencies = false;
ConditionPathExists = "/nix-path-registration";
};
wantedBy = [ "sysinit.target" ];
before = [
"sysinit.target"
"shutdown.target"
"nix-daemon.socket"
"nix-daemon.service"
];
after = [ "local-fs.target" ];
conflicts = [ "shutdown.target" ];
restartIfChanged = false;
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
};
script = ''
${lib.getExe' config.nix.package.out "nix-store"} --load-db < /nix-path-registration
rm /nix-path-registration
# nixos-rebuild also requires a "system" profile
${lib.getExe' config.nix.package.out "nix-env"} -p /nix/var/nix/profiles/system --set /run/current-system
'';
};
# supplement 99-ethernet-default-dhcp which excludes veth
systemd.network = lib.mkIf config.networking.useDHCP {
networks."99-lxc-veth-default-dhcp" = {
matchConfig = {
Type = "ether";
Kind = "veth";
Name = [
"en*"
"eth*"
];
};
DHCP = "yes";
networkConfig.IPv6PrivacyExtensions = "kernel";
};
};
system.nixos.tags = lib.mkOverride 99 [ "lxc" ];
image.extension = "tar.xz";
image.filePath = "tarball/${config.image.fileName}";
system.build.image = lib.mkOverride 99 config.system.build.tarball;
system.build.tarball = pkgs.callPackage ../../lib/make-system-tarball.nix {
fileName = config.image.baseName;
extraArgs = "--owner=0";
storeContents = [
{
object = config.system.build.toplevel;
symlink = "none";
}
];
contents = [
{
source = config.system.build.toplevel + "/init";
target = "/sbin/init";
}
# Technically this is not required for lxc, but having also make this configuration work with systemd-nspawn.
# Nixos will setup the same symlink after start.
{
source = config.system.build.toplevel + "/etc/os-release";
target = "/etc/os-release";
}
];
extraCommands = "mkdir -p proc sys dev";
};
system.build.squashfs = pkgs.callPackage ../../lib/make-squashfs.nix {
fileName = "nixos-lxc-image-${pkgs.stdenv.hostPlatform.system}";
hydraBuildProduct = true;
noStrip = true; # keep directory structure
comp = "zstd -Xcompression-level 6";
storeContents = [ config.system.build.toplevel ];
pseudoFiles = [
"/sbin d 0755 0 0"
"/sbin/init s 0555 0 0 ${config.system.build.toplevel}/init"
"/dev d 0755 0 0"
"/proc d 0555 0 0"
"/sys d 0555 0 0"
];
};
system.build.installBootLoader = pkgs.writeScript "install-lxc-sbin-init.sh" ''
#!${pkgs.runtimeShell}
${pkgs.coreutils}/bin/ln -fs "$1/init" /sbin/init
'';
# networkd depends on this, but systemd module disables this for containers
systemd.additionalUpstreamSystemUnits = [ "systemd-udev-trigger.service" ];
systemd.packages = [ pkgs.distrobuilder.generator ];
};
}
|
