57 lines
1.3 KiB
Nix
57 lines
1.3 KiB
Nix
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.epmd;
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in
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{
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###### interface
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options.services.epmd = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable socket activation for Erlang Port Mapper Daemon (epmd),
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which acts as a name server on all hosts involved in distributed
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Erlang computations.
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'';
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};
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package = mkOption {
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type = types.package;
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default = pkgs.erlang;
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description = ''
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The Erlang package to use to get epmd binary. That way you can re-use
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an Erlang runtime that is already installed for other purposes.
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'';
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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systemd.sockets.epmd = rec {
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description = "Erlang Port Mapper Daemon Activation Socket";
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wantedBy = [ "sockets.target" ];
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before = wantedBy;
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socketConfig = {
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ListenStream = "4369";
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Accept = "false";
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};
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};
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systemd.services.epmd = {
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description = "Erlang Port Mapper Daemon";
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after = [ "network.target" ];
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requires = [ "epmd.socket" ];
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serviceConfig = {
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DynamicUser = true;
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ExecStart = "${cfg.package}/bin/epmd -systemd";
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Type = "notify";
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};
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};
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};
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}
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