145 lines
3.6 KiB
Nix
145 lines
3.6 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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inherit (lib) mkOption mkIf singleton;
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inherit (pkgs) ddclient;
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stateDir = "/var/spool/ddclient";
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ddclientUser = "ddclient";
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ddclientFlags = "-foreground -verbose -noquiet -file ${ddclientCfg}";
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ddclientPIDFile = "${stateDir}/ddclient.pid";
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ddclientCfg = pkgs.writeText "ddclient.conf" ''
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daemon=600
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cache=${stateDir}/ddclient.cache
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pid=${ddclientPIDFile}
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use=${config.services.ddclient.use}
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login=${config.services.ddclient.username}
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password=${config.services.ddclient.password}
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protocol=${config.services.ddclient.protocol}
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server=${config.services.ddclient.server}
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ssl=${if config.services.ddclient.ssl then "yes" else "no"}
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wildcard=YES
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${config.services.ddclient.domain}
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${config.services.ddclient.extraConfig}
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'';
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in
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{
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###### interface
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options = {
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services.ddclient = with lib.types; {
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enable = mkOption {
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default = false;
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type = bool;
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description = ''
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Whether to synchronise your machine's IP address with a dynamic DNS provider (e.g. dyndns.org).
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'';
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};
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domain = mkOption {
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default = "";
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type = str;
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description = ''
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Domain name to synchronize.
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'';
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};
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username = mkOption {
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default = "";
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type = str;
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description = ''
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Username.
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'';
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};
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password = mkOption {
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default = "";
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type = str;
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description = ''
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Password.
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'';
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};
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protocol = mkOption {
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default = "dyndns2";
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type = str;
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description = ''
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Protocol to use with dynamic DNS provider (see http://sourceforge.net/apps/trac/ddclient/wiki/Protocols).
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'';
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};
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server = mkOption {
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default = "";
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type = str;
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description = ''
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Server address.
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'';
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};
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ssl = mkOption {
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default = true;
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type = bool;
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description = ''
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Whether to use to use SSL/TLS to connect to dynamic DNS provider.
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'';
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};
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extraConfig = mkOption {
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default = "";
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type = str;
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description = ''
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Extra configuration. Contents will be added verbatim to the configuration file.
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'';
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};
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use = mkOption {
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default = "web, web=checkip.dyndns.com/, web-skip='Current IP Address: '";
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type = str;
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description = ''
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Method to determine the IP address to send to the dymanic DNS provider.
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'';
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};
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};
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};
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###### implementation
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config = mkIf config.services.ddclient.enable {
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environment.systemPackages = [ ddclient ];
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users.extraUsers = singleton {
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name = ddclientUser;
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uid = config.ids.uids.ddclient;
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description = "ddclient daemon user";
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home = stateDir;
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};
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systemd.services.ddclient = {
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description = "Dynamic DNS Client";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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serviceConfig = {
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# Uncomment this if too many problems occur:
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# Type = "forking";
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User = ddclientUser;
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Group = "nogroup"; #TODO get this to work
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PermissionsStartOnly = "true";
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PIDFile = ddclientPIDFile;
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ExecStartPre = ''
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${pkgs.stdenv.shell} -c "${pkgs.coreutils}/bin/mkdir -m 0755 -p ${stateDir} && ${pkgs.coreutils}/bin/chown ${ddclientUser} ${stateDir}"
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'';
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ExecStart = "${ddclient}/bin/ddclient ${ddclientFlags}";
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#ExecStartPost = "${pkgs.coreutils}/bin/rm -r ${stateDir}"; # Should we have this?
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};
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};
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};
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}
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