Files
cnx-network-clan/clan.nix
T
Berwn 7d549a9c17 Migrate deprecated admin service to sshd + users
sshd carries the admin SSH keys and now also CA-signed host certificates
(TOFU-less verification via the shared openssh-ca); the users service
generates per-machine root passwords (share = false, no prompts).
2026-07-28 17:17:56 +07:00

100 lines
3.5 KiB
Nix

let
hosts = import ./modules/hosts.nix;
# Single source of the machine list: inventory AND the per-machine baseline
# below are both derived from it, so no machine can be added without the
# baseline (e.g. admins group encryption for all its generated secrets).
fleet = {
control = { };
ns1 = { };
ns2 = { };
mx1 = { };
web01 = { };
# Site gateways (Topton 1U routers): dynamic PPPoE WAN, so they are NOT in
# modules/hosts.nix / the `internet` instance — clan reaches them over the
# zerotier mesh (or Tor) instead.
gw-cnx-1 = { };
};
in
{
# Ensure this is unique among all clans you want to use.
meta.name = "cnx-network-clan";
meta.domain = "cnx-network.internal";
inventory.machines = fleet;
inventory.instances = {
# Admin SSH keys + root password, split per the clan-core migration off
# the deprecated `admin` service (sshd handles keys, users the password).
sshd = {
roles.server.tags.all = { };
roles.server.settings.authorizedKeys = {
"berwn" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIENAjhGQGraQoAjJzsomKP8GAmQPeGL1rNRNHgRcLqtT";
"kurogeek" =
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEcZ/p1Ofa9liwIzPWzNtONhJ7+FUWd2lCz33r81t8+w kurogeek@kurogeek";
};
};
root-user = {
module = {
name = "users";
input = "clan-core";
};
roles.default.tags.all = { };
roles.default.settings = {
user = "root";
prompt = false; # auto-generate, like the old admin service
share = false; # per-machine password, not fleet-wide
};
};
zerotier = {
roles.controller.machines."control" = { };
roles.peer.tags.all = { };
# External members admitted by ZeroTier node id (stable per device).
# Inventory machines are auto-accepted; this is only for peers outside the
# clan. Node id comes from `zerotier-cli info` on the joining device.
roles.controller.settings.allowedIds = [
"8802c8d7e0" # alex-nixos
"2bd36db8cc" # kurogeek-thinkpad
];
};
tor = {
roles.server.tags.nixos = { };
};
# Direct SSH to public IPs — clan's priority-1 connection path, with the
# ZeroTier mesh and Tor kept as automatic fallbacks. Raw IPs (from
# modules/hosts.nix, not the ns1/ns2 DNS names) so reaching these hosts never
# depends on their own DNS being up.
internet.roles.default.machines = builtins.mapAttrs (_: h: {
settings.host = h.ipv4;
}) hosts;
# Recovery root password for console access when a machine fails to boot.
emergency-access = {
roles.default.tags.nixos = { };
};
# Encrypted, deduplicating backups. control hosts the repos; ns1 is the
# only client, backing up its declared clan.core.state (the Knot DNSSEC
# keystore) over the mesh. Repo lives at /var/lib/borgbackup/ns1 on control.
# Cross-host so an ns1 loss is recoverable; repokey encryption means control
# never holds plaintext. Run `clan vars generate ns1` (YubiKey) before deploy.
borgbackup = {
roles.server.machines.control = { };
roles.client.machines.ns1 = { };
};
};
# Fleet-wide baseline applied to every machine. Secrets minted by
# `clan vars generate` are encrypted for the admins group from the very
# first run — generating before this took effect is what forced the
# re-encryption dance (`clan vars fix`) on gw-cnx-1.
machines = builtins.mapAttrs (_: _: {
clan.core.sops.defaultGroups = [ "admins" ];
}) fleet;
}