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# This file provides compatibility for NixOS to run in a container on vpsAdminOS
# hosts.
#
# If you're experiencing issues, try updating this file to the latest version
# from vpsAdminOS repository:
#
# https://github.com/vpsfreecz/vpsadminos/blob/staging/os/lib/nixos-container/vpsadminos.nix
{ pkgs, lib, ... }:
with lib;
let nameservers = [
"88.198.92.222" "2a01:4f8:1c0c:82c0::1" # ns1.by.de.dns.opennic.glue
"217.160.70.42" "2001:8d8:1801:86e7::1" # ns13.de.dns.opennic.glue
];
in {
networking.nameservers = mkDefault nameservers;
services.resolved = mkDefault { fallbackDns = nameservers; };
networking.dhcpcd.extraConfig = "noipv4ll";
systemd.services.systemd-sysctl.enable = false;
systemd.services.systemd-oomd.enable = false;
systemd.sockets."systemd-journald-audit".enable = false;
systemd.mounts = [ {where = "/sys/kernel/debug"; enable = false;} ];
systemd.services.systemd-udev-trigger.enable = false;
systemd.services.rpc-gssd.enable = false;
# Due to our restrictions in /sys, the default systemd-udev-trigger fails
# on accessing PCI devices, etc. Override it to match only network devices.
# In addition, boot.isContainer prevents systemd-udev-trigger.service from
# being enabled at all, so add it explicitly.
systemd.additionalUpstreamSystemUnits = [
"systemd-udev-trigger.service"
];
systemd.services.systemd-udev-trigger.serviceConfig.ExecStart = [
""
"-udevadm trigger --subsystem-match=net --action=add"
];
boot.isContainer = true;
boot.enableContainers = mkDefault true;
boot.loader.initScript.enable = true;
boot.specialFileSystems."/run/keys".fsType = mkForce "tmpfs";
boot.systemdExecutable = mkDefault "/run/current-system/systemd/lib/systemd/systemd systemd.unified_cgroup_hierarchy=0";
# Overrides for <nixpkgs/nixos/modules/virtualisation/container-config.nix>
documentation.enable = mkOverride 500 true;
documentation.nixos.enable = mkOverride 500 true;
networking.useHostResolvConf = mkOverride 500 false;
services.openssh.startWhenNeeded = mkOverride 500 false;
# Bring up the network, /ifcfg.{add,del} are supplied by the vpsAdminOS host
systemd.services.networking-setup = {
description = "Load network configuration provided by the vpsAdminOS host";
before = [ "network.target" ];
wantedBy = [ "network.target" ];
after = [ "network-pre.target" ];
path = [ pkgs.iproute2 ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
ExecStart = "${pkgs.bash}/bin/bash /ifcfg.add";
ExecStop = "${pkgs.bash}/bin/bash /ifcfg.del";
};
unitConfig.ConditionPathExists = "/ifcfg.add";
restartIfChanged = false;
};
}
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