c53e5201f4
Storing the SCION path sqlite databases persistently on disk is a valid setup that improves performance, but may have outstanding bugs that need to be investigated, so this makes persisent storage optional, off by default.
76 lines
2.2 KiB
Nix
76 lines
2.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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globalCfg = config.services.scion;
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cfg = config.services.scion.scion-dispatcher;
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toml = pkgs.formats.toml { };
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defaultConfig = {
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dispatcher = {
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id = "dispatcher";
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socket_file_mode = "0770";
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application_socket = "/dev/shm/dispatcher/default.sock";
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};
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log.console = {
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level = "info";
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};
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};
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configFile = toml.generate "scion-dispatcher.toml" (recursiveUpdate defaultConfig cfg.settings);
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in
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{
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options.services.scion.scion-dispatcher = {
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enable = mkEnableOption "the scion-dispatcher service";
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settings = mkOption {
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default = { };
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type = toml.type;
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example = literalExpression ''
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{
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dispatcher = {
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id = "dispatcher";
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socket_file_mode = "0770";
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application_socket = "/dev/shm/dispatcher/default.sock";
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};
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log.console = {
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level = "info";
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};
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}
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'';
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description = ''
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scion-dispatcher configuration. Refer to
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<https://docs.scion.org/en/latest/manuals/common.html>
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for details on supported values.
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'';
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};
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};
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config = mkIf cfg.enable {
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# Needed for group ownership of the dispatcher socket
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users.groups.scion = {};
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# scion programs hardcode path to dispatcher in /run/shm, and is not
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# configurable at runtime upstream plans to obsolete the dispatcher in
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# favor of an SCMP daemon, at which point this can be removed.
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system.activationScripts.scion-dispatcher = ''
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ln -sf /dev/shm /run/shm
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'';
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systemd.services.scion-dispatcher = {
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description = "SCION Dispatcher";
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after = [ "network-online.target" ];
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wants = [ "network-online.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "simple";
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Group = "scion";
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DynamicUser = true;
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BindPaths = [ "/dev/shm:/run/shm" ];
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ExecStartPre = "${pkgs.coreutils}/bin/rm -rf /run/shm/dispatcher";
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ExecStart = "${pkgs.scion}/bin/scion-dispatcher --config ${configFile}";
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Restart = "on-failure";
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${if globalCfg.stateless then "RuntimeDirectory" else "StateDirectory"} = "scion-dispatcher";
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};
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};
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};
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}
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