diff --git a/flake.nix b/flake.nix index 99ff182..ec76768 100644 --- a/flake.nix +++ b/flake.nix @@ -43,5 +43,12 @@ ./ursa-minor/configuration.nix ]; }; + nixosConfigurations.ursa-major = nixpkgs.lib.nixosSystem + { + system = "aarch64-linux"; + modules = [ + ./ursa-major/configuration.nix + ]; + }; }; } diff --git a/ursa-major/configuration.nix b/ursa-major/configuration.nix new file mode 100644 index 0000000..bd04252 --- /dev/null +++ b/ursa-major/configuration.nix @@ -0,0 +1,171 @@ +# 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-major"; # 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 = false; + 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? + +} diff --git a/ursa-major/hardware-configuration.nix b/ursa-major/hardware-configuration.nix new file mode 100644 index 0000000..395492c --- /dev/null +++ b/ursa-major/hardware-configuration.nix @@ -0,0 +1,38 @@ +# Do not modify this file! It was generated by ‘nixos-generate-config’ +# and may be overwritten by future invocations. Please make changes +# to /etc/nixos/configuration.nix instead. +{ config, lib, pkgs, modulesPath, ... }: + +{ + imports = + [ + (modulesPath + "/installer/scan/not-detected.nix") + ]; + + boot.initrd.availableKernelModules = [ ]; + boot.initrd.kernelModules = [ ]; + boot.kernelModules = [ ]; + boot.extraModulePackages = [ ]; + + fileSystems."/" = + { + device = "/dev/disk/by-uuid/44444444-4444-4444-8888-888888888888"; + fsType = "ext4"; + }; + + swapDevices = [{ + device = "/var/lib/swapfile"; + size = 16 * 1024; + }]; + + # Enables DHCP on each ethernet and wireless interface. In case of scripted networking + # (the default) this is the recommended approach. When using systemd-networkd it's + # still possible to use this option, but it's recommended to use it in conjunction + # with explicit per-interface declarations with `networking.interfaces..useDHCP`. + networking.useDHCP = lib.mkDefault true; + # networking.interfaces.enu1u1.useDHCP = lib.mkDefault true; + # networking.interfaces.wlan0.useDHCP = lib.mkDefault true; + + nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux"; +} +