141 lines
4.5 KiB
Nix
141 lines
4.5 KiB
Nix
{ config
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, lib
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, pkgs
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, ...
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}:
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let
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cfg = config.services.blendfarm;
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json = pkgs.formats.json { };
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configFile = json.generate "ServerSettings" (defaultConfig // cfg.serverConfig);
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defaultConfig = {
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Port = 15000;
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BroadcastPort = 16342;
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BypassScriptUpdate = false;
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BasicSecurityPassword = null;
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};
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in
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{
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meta.maintainers = with lib.maintainers; [ gador ];
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options.services.blendfarm = with lib.types; {
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enable = lib.mkEnableOption "Blendfarm, a render farm management software for Blender.";
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package = lib.mkPackageOption pkgs "blendfarm" { };
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openFirewall = lib.mkEnableOption "Allow blendfarm network access through the firewall.";
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user = lib.mkOption {
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description = "User under which blendfarm runs.";
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default = "blendfarm";
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type = str;
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};
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group = lib.mkOption {
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description = "Group under which blendfarm runs.";
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default = "blendfarm";
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type = str;
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};
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basicSecurityPasswordFile = lib.mkOption {
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description = ''Path to the password file the client needs to connect to the server.
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The password must not contain a forward slash.'';
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default = null;
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type = nullOr str;
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};
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blenderPackage = lib.mkPackageOption pkgs "blender" { };
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serverConfig = lib.mkOption {
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description = "Server configuration";
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default = defaultConfig;
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type = submodule {
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freeformType = attrsOf anything;
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options = {
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Port = lib.mkOption {
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description = "Default port blendfarm server listens on.";
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default = 15000;
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type = types.port;
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};
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BroadcastPort = lib.mkOption {
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description = "Default port blendfarm server advertises itself on.";
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default = 16342;
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type = types.port;
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};
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BypassScriptUpdate = lib.mkOption {
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description = "Prevents blendfarm from replacing the .py self-generated scripts.";
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default = false;
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type = bool;
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};
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};
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};
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};
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};
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config = lib.mkIf cfg.enable {
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environment.systemPackages = [ cfg.package ];
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networking.firewall = lib.optionalAttrs (cfg.openFirewall) {
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allowedTCPPorts = [ cfg.serverConfig.Port ];
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allowedUDPPorts = [ cfg.serverConfig.BroadcastPort ];
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};
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systemd.services.blendfarm-server = {
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wantedBy = [ "multi-user.target" ];
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after = [ "network-online.target" ];
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wants = [ "network-online.target" ];
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description = "blendfarm server";
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path = [ cfg.blenderPackage ];
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preStart = ''
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rm -f ServerSettings
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install -m640 ${configFile} ServerSettings
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if [ ! -d "BlenderData/nix-blender-linux64" ]; then
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mkdir -p BlenderData/nix-blender-linux64
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echo "nix-blender" > VersionCustom
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fi
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rm -f BlenderData/nix-blender-linux64/blender
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ln -s ${lib.getExe cfg.blenderPackage} BlenderData/nix-blender-linux64/blender
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'' +
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lib.optionalString (cfg.basicSecurityPasswordFile != null) ''
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BLENDFARM_PASSWORD=$(${pkgs.systemd}/bin/systemd-creds cat BLENDFARM_PASS_FILE)
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sed -i "s/null/\"$BLENDFARM_PASSWORD\"/g" ServerSettings
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'';
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serviceConfig = {
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ExecStart = "${cfg.package}/bin/LogicReinc.BlendFarm.Server";
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DynamicUser = true;
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LogsDirectory = "blendfarm";
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StateDirectory = "blendfarm";
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WorkingDirectory = "/var/lib/blendfarm";
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User = cfg.user;
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Group = cfg.group;
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StateDirectoryMode = "0755";
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LoadCredential = lib.optional (cfg.basicSecurityPasswordFile != null) "BLENDFARM_PASS_FILE:${cfg.basicSecurityPasswordFile}";
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ReadWritePaths = "";
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CapabilityBoundingSet = "";
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RestrictAddressFamilies = [ "AF_UNIX" "AF_INET" "AF_INET6" ];
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RestrictNamespaces = true;
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PrivateDevices = true;
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PrivateUsers = true;
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHome = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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SystemCallArchitectures = "native";
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SystemCallFilter = [
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"@system-service"
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"~@privileged"
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"@chown"
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];
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RestrictRealtime = true;
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LockPersonality = true;
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UMask = "0066";
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ProtectHostname = true;
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};
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};
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users.users.blendfarm = {
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isSystemUser = true;
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group = "blendfarm";
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};
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users.groups.blendfarm = { };
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};
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}
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