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{ config, lib, pkgs, ... }:
with lib;
let
settingsFormat = {
type = with lib.types; attrsOf (oneOf [ bool int str ]);
generate = name: attrs:
pkgs.writeText name (lib.strings.concatStringsSep "\n"
(lib.attrsets.mapAttrsToList
(key: value: "${key}=${builtins.toJSON value}") attrs));
};
in {
options = {
services.uhub = mkOption {
default = { };
description = "Uhub ADC hub instances";
type = types.attrsOf (types.submodule {
options = {
enable = mkEnableOption "hub instance" // { default = true; };
enableTLS = mkOption {
type = types.bool;
default = false;
description = "Whether to enable TLS support.";
};
settings = mkOption {
inherit (settingsFormat) type;
description = ''
Configuration of uhub.
See https://www.uhub.org/doc/config.php for a list of options.
'';
default = { };
example = {
server_bind_addr = "any";
server_port = 1511;
hub_name = "My Public Hub";
hub_description = "Yet another ADC hub";
max_users = 150;
};
};
plugins = mkOption {
description = "Uhub plugin configuration.";
type = with types;
listOf (submodule {
options = {
plugin = mkOption {
type = path;
example = literalExpression
"$${pkgs.uhub}/plugins/mod_auth_sqlite.so";
description = "Path to plugin file.";
};
settings = mkOption {
description = "Settings specific to this plugin.";
type = with types; attrsOf str;
example = { file = "/etc/uhub/users.db"; };
};
};
});
default = [ ];
};
};
});
};
};
config = let
hubs = lib.attrsets.filterAttrs (_: cfg: cfg.enable) config.services.uhub;
in {
environment.etc = lib.attrsets.mapAttrs' (name: cfg:
let
settings' = cfg.settings // {
tls_enable = cfg.enableTLS;
file_plugins = pkgs.writeText "uhub-plugins.conf"
(lib.strings.concatStringsSep "\n" (map ({ plugin, settings }:
"plugin ${plugin} ${
toString
(lib.attrsets.mapAttrsToList (key: value: ''"${key}=${value}"'')
settings)
}") cfg.plugins));
};
in {
name = "uhub/${name}.conf";
value.source = settingsFormat.generate "uhub-${name}.conf" settings';
}) hubs;
systemd.services = lib.attrsets.mapAttrs' (name: cfg: {
name = "uhub-${name}";
value = let pkg = pkgs.uhub.override { tlsSupport = cfg.enableTLS; };
in {
description = "high performance peer-to-peer hub for the ADC network";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
reloadIfChanged = true;
serviceConfig = {
Type = "notify";
ExecStart = "${pkg}/bin/uhub -c /etc/uhub/${name}.conf -L";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
DynamicUser = true;
};
};
}) hubs;
};
}
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