nixpkgs/modules/services/networking/prayer.nix

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{ config, pkgs, ... }:
with pkgs.lib;
let
inherit (pkgs) prayer;
stateDir = "/var/lib/prayer";
prayerUser = "prayer";
prayerGroup = "prayer";
prayerExtraCfg = pkgs.writeText "extraprayer.cf" ''
prefix = "${prayer}"
var_prefix = "${stateDir}"
prayer_user = "${prayerUser}"
prayer_group = "${prayerGroup}"
sendmail_path = "/var/setuid-wrappers/sendmail"
${config.services.prayer.extraConfig}
'';
prayerCfg = pkgs.runCommand "prayer.cf" { } ''
cat ${prayer}/etc/prayer.cf ${prayerExtraCfg} > $out
'';
in
{
###### interface
options = {
services.prayer = {
enable = mkOption {
default = false;
description = ''
Whether to run the machine as a HTTP proxy server.
'';
};
listenAddress = mkOption {
default = "127.0.0.1:8118";
description = ''
Address the proxy server is listening to.
'';
};
logDir = mkOption {
default = "/var/log/prayer" ;
description = ''
Location for prayer log files.
'';
};
extraConfig = mkOption {
default = "" ;
description = ''
Extra configuration. Contents will be added verbatim to the configuration file.
'';
};
};
};
###### implementation
config = mkIf config.services.prayer.enable {
environment.systemPackages = [ prayer ];
users.extraUsers = singleton
{ name = prayerUser;
uid = config.ids.uids.prayer;
description = "prayer daemon user";
home = stateDir;
};
users.extraGroups = singleton
{ name = prayerGroup;
gid = config.ids.gids.prayer;
};
jobs.prayer =
{ name = "prayer";
startOn = "startup";
preStart =
''
mkdir -m 0755 -p ${stateDir}
chown ${prayerUser}.${prayerGroup} ${stateDir}
'';
daemonType = "daemon";
exec = "${prayer}/sbin/prayer --config-file=${prayerCfg}";
};
};
}