nixpkgs/nixos/modules/virtualisation/container-config.nix
Silvan Mosberger 4f0dadbf38 treewide: format all inactive Nix files
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build a08b3a4d19.tar.gz \
      --argstr baseRev b32a094368
    result/bin/apply-formatting $NIXPKGS_PATH
2024-12-10 20:26:33 +01:00

49 lines
1.1 KiB
Nix

{
config,
pkgs,
lib,
...
}:
with lib;
{
config = mkIf config.boot.isContainer {
# Disable some features that are not useful in a container.
# containers don't have a kernel
boot.kernel.enable = false;
boot.modprobeConfig.enable = false;
console.enable = mkDefault false;
nix.optimise.automatic = mkDefault false; # the store is host managed
powerManagement.enable = mkDefault false;
documentation.nixos.enable = mkDefault false;
networking.useHostResolvConf = mkDefault true;
# Containers should be light-weight, so start sshd on demand.
services.openssh.startWhenNeeded = mkDefault true;
# containers do not need to setup devices
services.udev.enable = false;
# containers normally do not need to manage logical volumes
services.lvm.enable = lib.mkDefault false;
# Shut up warnings about not having a boot loader.
system.build.installBootLoader = lib.mkDefault "${pkgs.coreutils}/bin/true";
# Not supported in systemd-nspawn containers.
security.audit.enable = false;
# Use the host's nix-daemon.
environment.variables.NIX_REMOTE = "daemon";
};
}