nixos-config/nixos/modules/services/sshd.nix
2021-11-01 09:20:42 +01:00

63 lines
1.4 KiB
Nix

{ pkgs, config, lib, ... }:
with lib;
let
cfg = config.services.custom.ssh;
in
{
options.services.custom.ssh = {
tools.enable = mkEnableOption "Add ssh tools";
sshd = {
enable = mkEnableOption "Start sshd server";
rootKeyFiles = mkOption {
type = with types; listOf path;
description = "keys to root login";
default = [ ];
};
};
};
config = mkMerge [
(mkIf cfg.tools.enable {
environment.systemPackages = with pkgs;
[
# sshuttle
sshfs
];
})
(mkIf cfg.sshd.enable {
services.openssh = {
enable = true;
forwardX11 = true;
passwordAuthentication = false;
};
users.users.root.openssh.authorizedKeys.keyFiles = cfg.sshd.rootKeyFiles;
services.openssh.extraConfig = ''
Banner /etc/sshd/banner-line
'';
environment.etc."sshd/banner-line".text =
let
text = config.networking.hostName;
size = 80 - (lib.stringLength text);
space = lib.fixedWidthString size " " "";
in
''
${space}${text}
'';
})
];
}