ma crapi.r: init config

makefu/1systems/crapi/README

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+1. flash arm6 image from https://www.cs.helsinki.fi/u/tmtynkky/nixos-arm/installer/ to sdcard
+2. passwd; systemctl start sshd; mkdir /var/src ; touch /var/src/.populate
+3. "environment.systemPackages = [ pkgs.rsync pkgs.git ];" in /etc/nixos/configuration.nix
+5. nixos-rebuild switch --fast --option binary-caches http://nixos-arm.dezgeg.me/channel --option binary-cache-public-keys nixos-arm.dezgeg.me-1:xBaUKS3n17BZPKeyxL4JfbTqECsT+ysbDJz29kLFRW0=%

makefu/1systems/crapi/config.nix

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+{ config, pkgs, lib, ... }:
+{
+  # :l <nixpkgs>
+  # builtins.readDir (pkgs.fetchFromGitHub { owner = "nixos"; repo = "nixpkgs-channels"; rev = "6c064e6b"; sha256 = "1rqzh475xn43phagrr30lb0fd292c1s8as53irihsnd5wcksnbyd"; })
+  imports = [
+    <stockholm/makefu>
+    <stockholm/makefu/2configs>
+    <stockholm/makefu/2configs/tinc/retiolum.nix>
+    <stockholm/makefu/2configs/save-diskspace.nix>
+
+  ];
+  krebs.build.host = config.krebs.hosts.crapi;
+  # 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;
+
+  boot.kernelPackages = pkgs.linuxPackages_rpi;
+
+  nix.binaryCaches = [ "http://nixos-arm.dezgeg.me/channel" ];
+  nix.binaryCachePublicKeys = [ "nixos-arm.dezgeg.me-1:xBaUKS3n17BZPKeyxL4JfbTqECsT+ysbDJz29kLFRW0=%" ];
+
+  fileSystems = {
+    "/boot" = {
+      device = "/dev/disk/by-label/NIXOS_BOOT";
+      fsType = "vfat";
+    };
+    "/" = {
+      device = "/dev/disk/by-label/NIXOS_SD";
+      fsType = "ext4";
+    };
+  };
+
+  system.activationScripts.create-swap = ''
+    if [ ! -e /swapfile ]; then
+      fallocate -l 2G /swapfile
+      mkswap /swapfile
+    fi
+  '';
+  swapDevices = [ { device = "/swapfile"; size = 2048; } ];
+
+  nix.package = lib.mkForce pkgs.nixStable;
+  services.openssh.enable = true;
+
+}

makefu/1systems/crapi/source.nix

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+{
+  arm6 = true;
+}