machines/mermet/security.nix

   1 { flakes, pkgs, lib, config, machineName, ... }:
   2 let
   3   inherit (config.security) gnupg;
   4   rootKey = "root/key";
   5   initrdKey = "initrd/ssh.key";
   6   keygrip = "89F52A879E0019A966503AFFDE72EEA84CDFA3A7";
   7 in
   8 {
   9 security.gnupg.store = flakes.pass + "/machines/${machineName}";
  10 environment.memoryAllocator.provider = "libc";
  11 services.openssh.extraConfig = ''
  12   StreamLocalBindUnlink yes
  13 '';
  14 /*
  15 installer.ssh-nixos = {
  16   PATH = [pkgs.gnupg pkgs.openssh];
  17   script = lib.mkMerge [
  18     (lib.mkBefore ''
  19       # Send the SSH key of the initrd
  20       gpg --decrypt '${gnupg.store}/${initrdKey}.gpg' |
  21       ssh '${config.installer.ssh-nixos.target}' \
  22       install -D -m 400 -o root -g root /dev/stdin /root/${initrdKey}
  23     '')
  24     (lib.mkBefore ''
  25       ssh '${config.installer.ssh-nixos.target}' \
  26       "gpg-connect-agent --no-autostart --homedir /var/lib/gnupg 'keyinfo --list' /bye 2>&1" |
  27       grep -qx -e "gpg-connect-agent: no gpg-agent running in this session" \
  28                -e "S KEYINFO ${keygrip} . . . 1 .*" || {
  29         # Send the rootKey
  30         gpg --decrypt '${gnupg.store}/${rootKey}.pass.gpg' |
  31         gpg --batch --pinentry-mode loopback --passphrase-fd 0 --export-secret-subkeys @root@${machineName} |
  32         ssh '${config.installer.ssh-nixos.target}' \
  33         gpg --no-autostart --homedir /var/lib/gnupg --no-autostart --batch --pinentry-mode loopback --import
  34
  35         # Send the rootKey's passphrase
  36         gpg --decrypt '${gnupg.store}/${rootKey}.pass.gpg' |
  37         ssh '${config.installer.ssh-nixos.target}' \
  38         gpg-preset-passphrase --homedir /var/lib/gnupg --preset ${keygrip}
  39       }
  40     '')
  41   ];
  42 };
  43 */
  44 boot.initrd.network.ssh.hostKeys = [ "/root/${initrdKey}" ];
  45 }