# Edit this configuration file to define what should be installed on # your system. Help is available in the configuration.nix(5) man page, on # https://search.nixos.org/options and in the NixOS manual (`nixos-help`). { config, lib, pkgs, ... }: { imports = [ # Include the results of the hardware scan. ./hardware-configuration.nix ]; nix.settings.experimental-features = [ "nix-command" "flakes" ]; nixpkgs.config.allowUnfree = true; # Use the extlinux boot loader. (NixOS wants to enable GRUB by default) boot.loader.grub.enable = false; # Enables the generation of /boot/extlinux/extlinux.conf boot.loader.generic-extlinux-compatible.enable = true; # For k3s boot.kernel.sysctl = { "net.ipv4.ip_forward" = 1; }; boot.kernelParams = [ "cgroup_enable=cpuset" "cgroup_memory=1" "cgroup_enable=memory" ]; networking.hostName = "ursa-minor"; # Define your hostname. # Pick only one of the below networking options. networking.wireless.enable = true; # Enables wireless support via wpa_supplicant. # networking.networkmanager.enable = true; # Easiest to use and most distros use this by default. # Set your time zone. time.timeZone = "America/New_York"; # Configure network proxy if necessary # networking.proxy.default = "http://user:password@proxy:port/"; # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain"; # services.earlyoom.enable = true; services.k3s.enable = true; services.k3s.role = "server"; services.k3s.extraFlags = toString [ # "--kubelet-arg=v=4" # Optionally add additional args to k3s ]; environment.variables = { KUBECONFIG = "/home/nixos/.kube/config"; }; services.influxdb.enable = true; services.telegraf.enable = true; services.telegraf.extraConfig = { outputs.influxdb = { urls = [ "http://127.0.0.1:8086" ]; database = "telegraf"; }; inputs.net = { }; inputs.netstat = { }; inputs.file = { files = [ "/sys/class/thermal/thermal_zone0/temp" ]; name_override = "cpu_temperature"; data_format = "value"; data_type = "integer"; }; inputs.exec = { commands = [ "${pkgs.libraspberrypi}/bin/vcgencmd measure_temp" ]; name_override = "gpu_temperature"; data_format = "grok"; grok_patterns = [ "%{NUMBER:value:float}" ]; }; inputs.cpu = { ## Whether to report per-cpu stats or not percpu = true; ## Whether to report total system cpu stats or not totalcpu = true; ## Comment this line if you want the raw CPU time metrics fielddrop = [ "time_*" ]; }; inputs.disk = { ## By default, telegraf gather stats for all mountpoints. ## Setting mountpoints will restrict the stats to the specified mountpoints. # mount_points = ["/"] ## Ignore some mountpoints by filesystem type. For example (dev)tmpfs (usually ## present on /run, /var/run, /dev/shm or /dev). ignore_fs = [ "tmpfs" "devtmpfs" ]; }; inputs.diskio = { ## By default, telegraf will gather stats for all devices including ## disk partitions. ## Setting devices will restrict the stats to the specified devices. # devices = ["sda", "sdb"] ## Uncomment the following line if you need disk serial numbers. # skip_serial_number = false }; inputs.kernel = { }; inputs.mem = { }; inputs.processes = { }; inputs.swap = { }; inputs.system = { }; inputs.interrupts = { }; inputs.linux_sysctl_fs = { }; }; # Define a user account. Don't forget to set a password with ‘passwd’. users.users.nixos = { isNormalUser = true; extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user. packages = with pkgs; [ ]; }; # List packages installed in system profile. To search, run: # $ nix search wget environment.systemPackages = with pkgs; [ git htop libraspberrypi slirp4netns # required by k3s vim ]; # Some programs need SUID wrappers, can be configured further or are # started in user sessions. # programs.mtr.enable = true; # programs.gnupg.agent = { # enable = true; # enableSSHSupport = true; # }; # List services that you want to enable: # Enable the OpenSSH daemon. services.openssh.enable = true; # 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 - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how # to actually do that. # # 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 = "24.05"; # Did you read the comment? }