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79 lines
2.2 KiB
79 lines
2.2 KiB
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.n8n;
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format = pkgs.formats.json {};
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configFile = format.generate "n8n.json" cfg.settings;
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in
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{
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options.services.n8n = {
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enable = mkEnableOption "n8n server";
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openFirewall = mkOption {
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type = types.bool;
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default = false;
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description = "Open ports in the firewall for the n8n web interface.";
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};
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settings = mkOption {
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type = format.type;
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default = {};
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description = ''
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Configuration for n8n, see <link xlink:href="https://docs.n8n.io/reference/configuration.html"/>
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for 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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services.n8n.settings = {
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# We use this to open the firewall, so we need to know about the default at eval time
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port = lib.mkDefault 5678;
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};
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systemd.services.n8n = {
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description = "N8N service";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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environment = {
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# This folder must be writeable as the application is storing
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# its data in it, so the StateDirectory is a good choice
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N8N_USER_FOLDER = "/var/lib/n8n";
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HOME = "/var/lib/n8n";
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N8N_CONFIG_FILES = "${configFile}";
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};
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serviceConfig = {
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Type = "simple";
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ExecStart = "${pkgs.n8n}/bin/n8n";
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Restart = "on-failure";
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StateDirectory = "n8n";
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# Basic Hardening
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NoNewPrivileges = "yes";
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PrivateTmp = "yes";
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PrivateDevices = "yes";
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DevicePolicy = "closed";
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DynamicUser = "true";
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ProtectSystem = "strict";
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ProtectHome = "read-only";
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ProtectControlGroups = "yes";
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ProtectKernelModules = "yes";
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ProtectKernelTunables = "yes";
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RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6 AF_NETLINK";
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RestrictNamespaces = "yes";
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RestrictRealtime = "yes";
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RestrictSUIDSGID = "yes";
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MemoryDenyWriteExecute = "no"; # v8 JIT requires memory segments to be Writable-Executable.
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LockPersonality = "yes";
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};
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};
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networking.firewall = mkIf cfg.openFirewall {
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allowedTCPPorts = [ cfg.settings.port ];
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};
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};
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}
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