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mdlayher-homelab/nixos/routnerr-2/configuration.nix
Matt Layher 1fbed8d53f
nixos/routnerr-2: refer to /boot disk by ID
Signed-off-by: Matt Layher <mdlayher@gmail.com>
2022-01-31 21:29:09 -05:00

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# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running nixos-help).
{ pkgs, ... }:
let vars = import ./lib/vars.nix;
in {
imports = [
# Hardware and base system configuration.
<nixos-hardware/pcengines/apu>
./hardware-configuration.nix
./lib/system.nix
# Base router networking.
./networking.nix
./nftables.nix
# Networking daemons.
./coredns.nix
./corerad.nix
./dhcpd4.nix
./traefik.nix
# Unstable or out-of-tree modules.
./lib/modules/wireguard_exporter.nix
];
# Overlays for unstable and out-of-tree packages.
nixpkgs.overlays = [
(_self: super: {
wireguard_exporter =
super.callPackage ./lib/pkgs/wireguard_exporter.nix { };
})
];
boot = {
kernel = {
sysctl = with vars.interfaces.wan0; {
# Forward on all interfaces.
"net.ipv4.conf.all.forwarding" = true;
"net.ipv6.conf.all.forwarding" = true;
# By default, not automatically configure any IPv6 addresses.
"net.ipv6.conf.all.accept_ra" = 0;
"net.ipv6.conf.all.autoconf" = 0;
"net.ipv6.conf.all.use_tempaddr" = 0;
# On WAN, allow IPv6 autoconfiguration and tempory address use.
"net.ipv6.conf.${name}.accept_ra" = 2;
"net.ipv6.conf.${name}.autoconf" = 1;
};
};
# Use the GRUB 2 boot loader with MBR.
loader.grub = {
enable = true;
version = 2;
device = "/dev/disk/by-id/ata-INDMEM_mSATA_256GB_AA200313000000000122";
};
};
# Packages specific to this machine. The base package set is defined in
# lib/system.nix.
environment.systemPackages = with pkgs; [
# Stable packages.
bind
cbfstool
cmatrix
flashrom
libmbim
libqmi
# Unstable and out-of-tree packages.
wireguard_exporter
];
# Use server as a remote builder.
nix = {
distributedBuilds = true;
buildMachines = [{
hostName = "servnerr-3";
system = "x86_64-linux";
maxJobs = 8;
speedFactor = 2;
supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
}];
};
# TEMPORARY: required to make MM exporter work.
systemd.services.prometheus-modemmanager-exporter.serviceConfig = {
DynamicUser = false;
User = "modemmanager-exporter";
};
users.users.modemmanager-exporter = {
group = "networkmanager";
isNormalUser = true;
};
services = {
# Allow mDNS to reflect between VLANs where necessary for devices such as
# Google Home and Chromecast.
avahi = {
enable = true;
interfaces = with vars.interfaces; [
"${enp2s0.name}"
"${lan0.name}"
"${iot0.name}"
];
ipv4 = true;
ipv6 = true;
reflector = true;
};
lldpd.enable = true;
# Enable the OpenSSH daemon.
openssh = {
enable = true;
passwordAuthentication = false;
permitRootLogin = "no";
};
prometheus.exporters = { modemmanager.enable = true; };
tftpd = {
enable = true;
path = "/var/lib/tftp";
};
};
}