nixos-config/configuration.nix

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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, on
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# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
{ config, lib, pkgs, ... }:
{
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nix.settings.experimental-features = [ "nix-command" "flakes" ];
sops.age.keyFile = "/secrets/age/keys.txt";
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imports =
[ # Include the results of the hardware scan.
./hardware-configuration.nix
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./users/users.nix
./services/gitea.nix
./services/duckddns.nix
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];
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# Use the systemd-boot EFI boot loader.
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
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# set hostname
networking.hostName = "rackserver";
# fix nixpkgs warning
nix.nixPath = [
"nixpkgs=${pkgs.path}"
];
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# ACME
security.acme = {
acceptTerms = true;
defaults.email = "sky.hearn@pm.me";
};
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# wireguard server setup
# enable NAT
networking.nat.enable = true;
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networking.nat.externalInterface = "eno4";
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networking.nat.internalInterfaces = [ "wg0" ];
networking.firewall = {
allowedUDPPorts = [ 51820 ];
};
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networking.wireguard.interfaces = {
# "wg0" is the network interface name. You can name the interface arbitrarily.
wg0 = {
# Determines the IP address and subnet of the server's end of the tunnel interface.
ips = [ "10.100.0.1/24" ];
# The port that WireGuard listens to. Must be accessible by the client.
listenPort = 51820;
# This allows the wireguard server to route your traffic to the internet and hence be like a VPN
# For this to work you have to set the dnsserver IP of your router (or dnsserver of choice) in your clients
postSetup = ''
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${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s 10.100.0.0/24 -o eno4 -j MASQUERADE
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'';
# This undoes the above command
postShutdown = ''
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${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s 10.100.0.0/24 -o eno4 -j MASQUERADE
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'';
# Path to the private key file.
#
# Note: The private key can also be included inline via the privateKey option,
# but this makes the private key world-readable; thus, using privateKeyFile is
# recommended.
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privateKeyFile = "/run/keys/wg-privatekey"; # TODO: Change this to be a sops secret
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peers = [
# List of allowed peers.
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{ #nub
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# Public key of the peer (not a file path).
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publicKey = "L4msD0mEG2ctKDtaMJW2y3cs1fT2LBRVV7iVlWZ2nZc=";
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# List of IPs assigned to this peer within the tunnel subnet. Used to configure routing.
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allowedIPs = [ "10.100.1.0/24" ];
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}
{ # ku
publicKey = "L4msD0mEG2ctKDtaMJW2y3cs1fT2LBRVV7iVlWZ2nZc=";
allowedIPs = [ "10.100.0.3/32" ];
}
{ # skyLaptop
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publicKey = "2sg0sgMMGQrCGt0f/5+1kO/B0Ghfb137DTf9nYctZTM=";
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allowedIPs = [ "10.100.0.4/32" ];
}
{ # skyDesktop
publicKey = "36tqEexZ8e6ks+qjDpnMzUY9LAJvFvVDe6MLzR9vtEo=";
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allowedIPs = [ "10.100.0.5/32" ];
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}
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];
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};
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};
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# arion setup
virtualisation.podman.enable = true;
virtualisation.podman.dockerSocket.enable = true;
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virtualisation.podman.defaultNetwork.settings.dns_enabled = true;
environment.systemPackages = [
pkgs.bash
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pkgs.wget
pkgs.curl
pkgs.vim
pkgs.arion
# Do install the docker CLI to talk to podman.
# Not needed when virtualisation.docker.enable = true;
pkgs.docker-client
];
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# List services that you want to enable:
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networking.firewall.allowedTCPPorts = [ 80 443 22 ];
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services.nginx = {
enable = true;
recommendedGzipSettings = true;
recommendedOptimisation = true;
recommendedProxySettings = true;
};
services.postgresql = {
enable = true;
};
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# Enable the OpenSSH daemon.
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services.openssh = {
enable = true;
settings = {
# Forbid root login through SSH.
PermitRootLogin = "no";
# key authentication
PasswordAuthentication = false;
KbdInteractiveAuthentication = false;
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};
};
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# Open ports in the firewall.
# networking.firewall.allowedTCPPorts = [ ... ];
# networking.firewall.allowedUDPPorts = [ ... ];
# Or disable the firewall altogether.
# networking.firewall.enable = false;
# Copy the NixOS configuration file and link it from the resulting system
# (/run/current-system/configuration.nix). This is useful in case you
# accidentally delete configuration.nix.
# system.copySystemConfiguration = true;
# This option defines the first version of NixOS you have installed on this particular machine,
# and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
#
# Most users should NEVER change this value after the initial install, for any reason,
# even if you've upgraded your system to a new NixOS release.
#
# This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
# so changing it will NOT upgrade your system.
#
# This value being lower than the current NixOS release does NOT mean your system is
# out of date, out of support, or vulnerable.
#
# Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
# and migrated your data accordingly.
#
# For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
system.stateVersion = "23.11"; # Did you read the comment?
}