Files
nixos-configs/hosts/backwards/modules/ssh/default.nix
2025-07-10 16:48:27 +02:00

142 lines
3.7 KiB
Nix

{
pkgs,
lib,
config,
...
}:
let
enabled = config.mod.ssh.enable;
authorizedKeysPath = "/home/alex/.ssh/authorized-keys";
rootSSHKeyPath = "/etc/ssh";
in
{
options = {
mod.ssh = {
enable = lib.mkEnableOption "enable ssh module";
};
};
config = lib.mkIf enabled {
home-manager.users.alex = {
programs.ssh = {
enable = true;
matchBlocks = {
"manatee" = {
hostname = "manatee";
user = "alex";
identityFile = "/home/alex/.ssh/alex.backwards-manatee";
port = 1122;
};
"git.ppp.pm" = {
hostname = "git.ppp.pm";
identityFile = "/home/alex/.ssh/alex.backwards-git.ppp.pm";
};
"codeberg.org" = {
hostname = "codeberg.org";
identityFile = "/home/alex/.ssh/alex.backwards-codeberg.org";
};
};
};
home.packages = [ pkgs.sshfs ];
};
environment.etc."ssh/authorized_keys_command" = {
mode = "0755";
text = ''
#!${pkgs.bash}/bin/bash
for file in ${authorizedKeysPath}/*; do
${pkgs.coreutils}/bin/cat "$file"
done
'';
};
services = {
openssh = {
enable = true;
ports = [ 1122 ];
hostKeys = [
{
path = "${rootSSHKeyPath}/root.backwards";
type = "ed25519";
}
];
settings = {
PasswordAuthentication = false;
KbdInteractiveAuthentication = false;
};
authorizedKeysCommand = "/etc/ssh/authorized_keys_command";
authorizedKeysCommandUser = "root";
};
};
networking = {
firewall = {
allowedTCPPorts = [ 1122 ];
};
};
age.secrets = {
"root.backwards" = {
file = ../../../../secrets/backwards/root.backwards.age;
path = "${rootSSHKeyPath}/root.backwards";
};
"root.backwards.pub" = {
file = ../../../../secrets/backwards/root.backwards.pub.age;
path = "${rootSSHKeyPath}/root.backwards.pub";
};
"alex.backwards-manatee" = {
file = ../../../../secrets/backwards/alex.backwards-manatee.age;
path = "/home/alex/.ssh/alex.backwards-manatee";
owner = "alex";
group = "users";
};
"alex.backwards-manatee.pub" = {
file = ../../../../secrets/backwards/alex.backwards-manatee.pub.age;
path = "/home/alex/.ssh/alex.backwards-manatee.pub";
owner = "alex";
group = "users";
};
"alex.pinwheel-backwards.pub" = {
file = ../../../../secrets/pinwheel/alex.pinwheel-backwards.pub.age;
path = "${authorizedKeysPath}/alex.pinwheel-backwards.pub";
};
"alex.backwards-git.ppp.pm" = {
file = ../../../../secrets/backwards/alex.backwards-git.ppp.pm.age;
path = "/home/alex/.ssh/alex.backwards-git.ppp.pm";
owner = "alex";
group = "users";
};
"alex.backwards-git.ppp.pm.pub" = {
file = ../../../../secrets/backwards/alex.backwards-git.ppp.pm.pub.age;
path = "/home/alex/.ssh/alex.backwards-git.ppp.pm.pub";
owner = "alex";
group = "users";
};
"alex.backwards-codeberg.org" = {
file = ../../../../secrets/backwards/alex.backwards-codeberg.org.age;
path = "/home/alex/.ssh/alex.backwards-codeberg.org";
owner = "alex";
group = "users";
};
"alex.backwards-codeberg.org.pub" = {
file = ../../../../secrets/backwards/alex.backwards-codeberg.org.pub.age;
path = "/home/alex/.ssh/alex.backwards-codeberg.org.pub";
owner = "alex";
group = "users";
};
};
};
}