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nixpkgs/nixos/modules/services/networking/quagga.nix
Graham Christensen 078925c954
quagga module: Use a deep merge via imports instead of the shallow merge
The deep merge caused all the options to be unset when generating docs, unless quagga was enabled.

Using imports, instead, properly allows the documentation to be generated.
2018-07-05 22:11:29 -04:00

186 lines
5 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.quagga;
services = [ "babel" "bgp" "isis" "ospf6" "ospf" "pim" "rip" "ripng" ];
allServices = services ++ [ "zebra" ];
isEnabled = service: cfg.${service}.enable;
daemonName = service: if service == "zebra" then service else "${service}d";
configFile = service:
let
scfg = cfg.${service};
in
if scfg.configFile != null then scfg.configFile
else pkgs.writeText "${daemonName service}.conf"
''
! Quagga ${daemonName service} configuration
!
hostname ${config.networking.hostName}
log syslog
service password-encryption
!
${scfg.config}
!
end
'';
serviceOptions = service:
{
enable = mkEnableOption "the Quagga ${toUpper service} routing protocol";
configFile = mkOption {
type = types.nullOr types.path;
default = null;
example = "/etc/quagga/${daemonName service}.conf";
description = ''
Configuration file to use for Quagga ${daemonName service}.
By default the NixOS generated files are used.
'';
};
config = mkOption {
type = types.lines;
default = "";
example =
let
examples = {
rip = ''
router rip
network 10.0.0.0/8
'';
ospf = ''
router ospf
network 10.0.0.0/8 area 0
'';
bgp = ''
router bgp 65001
neighbor 10.0.0.1 remote-as 65001
'';
};
in
examples.${service} or "";
description = ''
${daemonName service} configuration statements.
'';
};
vtyListenAddress = mkOption {
type = types.str;
default = "127.0.0.1";
description = ''
Address to bind to for the VTY interface.
'';
};
vtyListenPort = mkOption {
type = types.nullOr types.int;
default = null;
description = ''
TCP Port to bind to for the VTY interface.
'';
};
};
in
{
###### interface
imports = [
{
options.services.quagga = {
zebra = (serviceOptions "zebra") // {
enable = mkOption {
type = types.bool;
default = any isEnabled services;
description = ''
Whether to enable the Zebra routing manager.
The Zebra routing manager is automatically enabled
if any routing protocols are configured.
'';
};
};
};
}
{ options.services.quagga = (genAttrs services serviceOptions); }
];
###### implementation
config = mkIf (any isEnabled allServices) {
environment.systemPackages = [
pkgs.quagga # for the vtysh tool
];
users.users.quagga = {
description = "Quagga daemon user";
isSystemUser = true;
group = "quagga";
};
users.groups = {
quagga = {};
# Members of the quaggavty group can use vtysh to inspect the Quagga daemons
quaggavty = { members = [ "quagga" ]; };
};
systemd.services =
let
quaggaService = service:
let
scfg = cfg.${service};
daemon = daemonName service;
in
nameValuePair daemon ({
wantedBy = [ "multi-user.target" ];
restartTriggers = [ (configFile service) ];
serviceConfig = {
Type = "forking";
PIDFile = "/run/quagga/${daemon}.pid";
ExecStart = "@${pkgs.quagga}/libexec/quagga/${daemon} ${daemon} -d -f ${configFile service}"
+ optionalString (scfg.vtyListenAddress != "") " -A ${scfg.vtyListenAddress}"
+ optionalString (scfg.vtyListenPort != null) " -P ${toString scfg.vtyListenPort}";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
Restart = "on-abort";
};
} // (
if service == "zebra" then
{
description = "Quagga Zebra routing manager";
unitConfig.Documentation = "man:zebra(8)";
after = [ "network.target" ];
preStart = ''
install -m 0755 -o quagga -g quagga -d /run/quagga
${pkgs.iproute}/bin/ip route flush proto zebra
'';
}
else
{
description = "Quagga ${toUpper service} routing daemon";
unitConfig.Documentation = "man:${daemon}(8) man:zebra(8)";
bindsTo = [ "zebra.service" ];
after = [ "network.target" "zebra.service" ];
}
));
in
listToAttrs (map quaggaService (filter isEnabled allServices));
};
meta.maintainers = with lib.maintainers; [ tavyc ];
}