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{ config, pkgs, lib, ... }: {
# NixOS wants to enable GRUB by default
boot.loader.grub.enable = false;
# A bunch of boot parameters needed for optimal runtime on RPi 4B
boot.kernelPackages = pkgs.linuxPackages_rpi4;
boot.kernelParams = [
"zfs.zfs_arc_max=134217728"
"console=TTYAMA0,115200"
"console=tty1"
"8250.nr_uarts=1"
"iomem=relaxed"
"strict-devmem=0"
];
boot.loader.raspberryPi = {
enable = true;
version = 4;
};
environment.systemPackages = with pkgs; [ libraspberrypi htop vim ];
# !!! Adding a swap file is optional, but strongly recommended!
swapDevices = [{
device = "/swapfile";
size = 4096;
}];
# Configure basic SSH access
services.openssh = {
enable = true;
permitRootLogin = "yes";
};
# Cleanup tmp on startup
boot.cleanTmpDir = true;
# Create coolneng user
users.users.coolneng = {
isNormalUser = true;
home = "/home/coolneng";
extraGroups = [ "wheel" "docker" ];
openssh.authorizedKeys.keys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFRqINHR7/zc+c3/PuR+NeSsBHXXzBiEtFWSK6QaxQTW coolneng@panacea"
];
shell = "${pkgs.fish}/bin/fish";
};
# Set vim as default editor
programs.vim.defaultEditor = true;
# Set timezone and synchronize NTP
time.timeZone = "Europe/Brussels";
services.timesyncd.enable = true;
# Enable ZFS support
boot.supportedFilesystems = [ "zfs" ];
# Scrub zpool monthly
services.zfs.autoScrub = {
enable = true;
interval = "monthly";
};
# Auto-upgrade the system and reboot if needed
system.autoUpgrade = {
enable = true;
allowReboot = true;
};
# Run Nix garbage collector, while avoiding recompilation
nix = {
autoOptimiseStore = true;
gc = {
automatic = true;
options = "--delete-older-than 14d";
};
extraOptions = ''
keep-outputs = true
keep-derivations = true
gc-keep-outputs = true
'';
};
# Configure fish shell
programs.fish.enable = true;
users.users.root = {
shell = "${pkgs.fish}/bin/fish";
openssh.authorizedKeys.keys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFRqINHR7/zc+c3/PuR+NeSsBHXXzBiEtFWSK6QaxQTW coolneng@panacea"
];
};
# Rotate logs after 7 days
services.journald.extraConfig = "SystemMaxFiles=7";
# Increase inotify limits
boot.kernel.sysctl = { "fs.inotify.max_user_watches" = 204800; };
# MOTD message
programs.fish.interactiveShellInit = "${./scripts/motd.sh}";
# Import other configuration modules
imports = [
./modules/hardware-configuration.nix
./modules/networking.nix
./modules/datasync.nix
./modules/webstack.nix
./modules/devops.nix
./modules/monitoring.nix
./modules/periodic.nix
./modules/communication.nix
./modules/information.nix
];
}