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{ config, lib, pkgs, ... }:
# search also generates ddclient entries for all other logs
with import <stockholm/lib>;
let
#primary-itf = "eth0";
#primary-itf = "wlp2s0";
primary-itf = config.makefu.server.primary-itf;
ddclientUser = "ddclient";
sec = toString <secrets>;
nsupdate = import "${sec}/nsupdate-data.nix";
stateDir = "/var/spool/ddclient";
cfg = "${stateDir}/cfg";
ddclientPIDFile = "${stateDir}/ddclient.pid";
# TODO: correct cert generation requires a `real` internet ip address
gen-cfg = dict: ''
ssl=yes
cache=${stateDir}/ddclient.cache
pid=${ddclientPIDFile}
${concatStringsSep "\n" (mapAttrsToList (user: pass: ''
use=if, if=${primary-itf} protocol=dyndns2, server=ipv4.nsupdate.info, login=${user}, password='${pass}' ${user}
usev6=if, if=${primary-itf} protocol=dyndns2, server=ipv6.nsupdate.info, login=${user}, password='${pass}' ${user}
'') dict)}
'';
in {
users.users.${ddclientUser} = {
name = ddclientUser;
uid = genid ddclientUser;
description = "ddclient daemon user";
home = stateDir;
createHome = true;
isSystemUser = true;
group = ddclientUser;
};
users.groups.${ddclientUser} = {};
systemd.services = {
ddclient-nsupdate-elchos = {
wantedBy = [ "multi-user.target" ];
after = [ "ip-up.target" ];
serviceConfig = {
Type = "forking";
User = ddclientUser;
PIDFile = ddclientPIDFile;
ExecStartPre = pkgs.writeDash "init-nsupdate" ''
cp -vf ${pkgs.writeText "ddclient-config" (gen-cfg nsupdate)} ${cfg}
chmod 700 ${cfg}
'';
ExecStart = "${pkgs.ddclient}/bin/ddclient -verbose -daemon 1 -noquiet -file ${cfg}";
};
};
};
}
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