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nixpkgs/nixos/modules/services/networking/ostinato.nix
pennae 2e751c0772 treewide: automatically md-convert option descriptions
the conversion procedure is simple:

 - find all things that look like options, ie calls to either `mkOption`
   or `lib.mkOption` that take an attrset. remember the attrset as the
   option
 - for all options, find a `description` attribute who's value is not a
   call to `mdDoc` or `lib.mdDoc`
 - textually convert the entire value of the attribute to MD with a few
   simple regexes (the set from mdize-module.sh)
 - if the change produced a change in the manual output, discard
 - if the change kept the manual unchanged, add some text to the
   description to make sure we've actually found an option. if the
   manual changes this time, keep the converted description

this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
2022-07-30 15:16:34 +02:00

105 lines
2.6 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
pkg = pkgs.ostinato;
cfg = config.services.ostinato;
configFile = pkgs.writeText "drone.ini" ''
[General]
RateAccuracy=${cfg.rateAccuracy}
[RpcServer]
Address=${cfg.rpcServer.address}
[PortList]
Include=${concatStringsSep "," cfg.portList.include}
Exclude=${concatStringsSep "," cfg.portList.exclude}
'';
in
{
###### interface
options = {
services.ostinato = {
enable = mkEnableOption "Ostinato agent-controller (Drone)";
port = mkOption {
type = types.int;
default = 7878;
description = lib.mdDoc ''
Port to listen on.
'';
};
rateAccuracy = mkOption {
type = types.enum [ "High" "Low" ];
default = "High";
description = lib.mdDoc ''
To ensure that the actual transmit rate is as close as possible to
the configured transmit rate, Drone runs a busy-wait loop.
While this provides the maximum accuracy possible, the CPU
utilization is 100% while the transmit is on. You can however,
sacrifice the accuracy to reduce the CPU load.
'';
};
rpcServer = {
address = mkOption {
type = types.str;
default = "0.0.0.0";
description = lib.mdDoc ''
By default, the Drone RPC server will listen on all interfaces and
local IPv4 adresses for incoming connections from clients. Specify
a single IPv4 or IPv6 address if you want to restrict that.
To listen on any IPv6 address, use ::
'';
};
};
portList = {
include = mkOption {
type = types.listOf types.str;
default = [];
example = [ "eth*" "lo*" ];
description = lib.mdDoc ''
For a port to pass the filter and appear on the port list managed
by drone, it be allowed by this include list.
'';
};
exclude = mkOption {
type = types.listOf types.str;
default = [];
example = [ "usbmon*" "eth0" ];
description = lib.mdDoc ''
A list of ports does not appear on the port list managed by drone.
'';
};
};
};
};
###### implementation
config = mkIf cfg.enable {
environment.systemPackages = [ pkg ];
systemd.services.drone = {
description = "Ostinato agent-controller";
wantedBy = [ "multi-user.target" ];
script = ''
${pkg}/bin/drone ${toString cfg.port} ${configFile}
'';
};
};
}