infrastructure/nixos/util.nix

59 lines
1.8 KiB
Nix

{ nixpkgs, home-manager, hyprland, mailserver, ... }:
let
inherit (builtins) filter attrValues concatLists;
# Helper function to resolve what should be imported depending on the type of config (lxc, vm, bare metal)
resolve_imports =
let
# lookup table
import_cases = {
"lxc" = [
"${nixpkgs}/nixos/modules/virtualisation/lxc-container.nix"
./common/generic-lxc.nix
];
"vm" = [
./common/generic-vm.nix
];
"local" = [
hyprland.nixosModules.default
];
};
in
{ hostname, realm, profile ? hostname, type ? "lxc", ... }: [
home-manager.nixosModules.home-manager
mailserver.nixosModules.mailserver
./common
"${./.}/hosts/${realm}/${profile}/configuration.nix"
] ++ import_cases.${type};
in
{
# Add to whatever realm a host belong to its list of tags
add_realm_to_tags = realm: hosts: map ({ tags ? [ ], ... }@host: host // { tags = [ realm ] ++ tags; inherit realm; }) hosts;
# Flatten all hosts to a single list
flatten_hosts = hosts: concatLists (attrValues hosts);
# Filter out all hosts which aren't nixos
filter_nix_hosts = hosts: filter ({ nix ? true, ... }: nix) hosts;
# Helper function to build a colmena host definition
mkColmenaHost = { ip ? null, hostname, tags, realm, type ? "lxc", ... }@host:
let
# this makes local apply work a bit nicer
name = if realm == "thalassa" then hostname else "${hostname}.${realm}";
in
{
"${name}" = {
imports = resolve_imports host;
networking = {
hostName = hostname;
domain = realm;
};
deployment = {
inherit tags;
targetHost = ip;
allowLocalDeployment = (type == "local");
targetUser = null; # Defaults to $USER
};
};
};
}