39b4c0d686
Previously we were doing some parts like activation in the init script, so linking to that works for non-systemd init With boot.initrd.systemd.enable we no longer run activation in the init script, but instead a new script named prepare-root, which is used instead.
92 lines
2.7 KiB
Nix
92 lines
2.7 KiB
Nix
{ lib, config, pkgs, ... }:
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{
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meta = {
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maintainers = lib.teams.lxc.members;
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};
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imports = [
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./lxc-instance-common.nix
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(lib.mkRemovedOptionModule [ "virtualisation" "lxc" "nestedContainer" ] "")
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(lib.mkRemovedOptionModule [ "virtualisation" "lxc" "privilegedContainer" ] "")
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];
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options = { };
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config = let
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initScript = if config.boot.initrd.systemd.enable then "prepare-root" else "init";
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in {
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boot.isContainer = true;
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boot.postBootCommands =
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''
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# After booting, register the contents of the Nix store in the Nix
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# database.
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if [ -f /nix-path-registration ]; then
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${config.nix.package.out}/bin/nix-store --load-db < /nix-path-registration &&
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rm /nix-path-registration
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fi
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# nixos-rebuild also requires a "system" profile
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${config.nix.package.out}/bin/nix-env -p /nix/var/nix/profiles/system --set /run/current-system
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'';
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system.build.tarball = pkgs.callPackage ../../lib/make-system-tarball.nix {
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extraArgs = "--owner=0";
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storeContents = [
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{
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object = config.system.build.toplevel;
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symlink = "none";
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}
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];
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contents = [
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{
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source = config.system.build.toplevel + "/${initScript}";
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target = "/sbin/init";
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}
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# Technically this is not required for lxc, but having also make this configuration work with systemd-nspawn.
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# Nixos will setup the same symlink after start.
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{
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source = config.system.build.toplevel + "/etc/os-release";
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target = "/etc/os-release";
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}
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];
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extraCommands = "mkdir -p proc sys dev";
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};
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system.build.squashfs = pkgs.callPackage ../../lib/make-squashfs.nix {
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fileName = "nixos-lxc-image-${pkgs.stdenv.hostPlatform.system}";
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noStrip = true; # keep directory structure
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comp = "zstd -Xcompression-level 6";
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storeContents = [config.system.build.toplevel];
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pseudoFiles = [
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"/sbin d 0755 0 0"
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"/sbin/init s 0555 0 0 ${config.system.build.toplevel}/${initScript}"
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"/dev d 0755 0 0"
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"/proc d 0555 0 0"
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"/sys d 0555 0 0"
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];
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};
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system.build.installBootLoader = pkgs.writeScript "install-lxd-sbin-init.sh" ''
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#!${pkgs.runtimeShell}
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${pkgs.coreutils}/bin/ln -fs "$1/${initScript}" /sbin/init
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'';
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# networkd depends on this, but systemd module disables this for containers
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systemd.additionalUpstreamSystemUnits = ["systemd-udev-trigger.service"];
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systemd.packages = [ pkgs.distrobuilder.generator ];
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system.activationScripts.installInitScript = lib.mkForce ''
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ln -fs $systemConfig/${initScript} /sbin/init
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'';
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};
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}
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