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318 lines
14 KiB
318 lines
14 KiB
{ lib, pkgs, config, options, ... }:
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let
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cfg = config.services.nifi;
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opt = options.services.nifi;
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env = {
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NIFI_OVERRIDE_NIFIENV = "true";
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NIFI_HOME = "/var/lib/nifi";
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NIFI_PID_DIR = "/run/nifi";
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NIFI_LOG_DIR = "/var/log/nifi";
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};
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envFile = pkgs.writeText "nifi.env" (lib.concatMapStrings (s: s + "\n") (
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(lib.concatLists (lib.mapAttrsToList (name: value:
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if value != null then [
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"${name}=\"${toString value}\""
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] else []
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) env))));
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nifiEnv = pkgs.writeShellScriptBin "nifi-env" ''
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set -a
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source "${envFile}"
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eval -- "\$@"
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'';
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in {
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options = {
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services.nifi = {
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enable = lib.mkEnableOption "Apache NiFi";
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package = lib.mkOption {
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type = lib.types.package;
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default = pkgs.nifi;
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defaultText = lib.literalExpression "pkgs.nifi";
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description = "Apache NiFi package to use.";
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};
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user = lib.mkOption {
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type = lib.types.str;
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default = "nifi";
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description = "User account where Apache NiFi runs.";
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};
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group = lib.mkOption {
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type = lib.types.str;
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default = "nifi";
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description = "Group account where Apache NiFi runs.";
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};
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enableHTTPS = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = "Enable HTTPS protocol. Don`t use in production.";
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};
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listenHost = lib.mkOption {
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type = lib.types.str;
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default = if cfg.enableHTTPS then "0.0.0.0" else "127.0.0.1";
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defaultText = lib.literalExpression ''
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if config.${opt.enableHTTPS}
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then "0.0.0.0"
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else "127.0.0.1"
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'';
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description = "Bind to an ip for Apache NiFi web-ui.";
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};
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listenPort = lib.mkOption {
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type = lib.types.int;
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default = if cfg.enableHTTPS then 8443 else 8080;
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defaultText = lib.literalExpression ''
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if config.${opt.enableHTTPS}
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then "8443"
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else "8000"
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'';
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description = "Bind to a port for Apache NiFi web-ui.";
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};
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proxyHost = lib.mkOption {
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type = lib.types.nullOr lib.types.str;
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default = if cfg.enableHTTPS then "0.0.0.0" else null;
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defaultText = lib.literalExpression ''
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if config.${opt.enableHTTPS}
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then "0.0.0.0"
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else null
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'';
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description = "Allow requests from a specific host.";
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};
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proxyPort = lib.mkOption {
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type = lib.types.nullOr lib.types.int;
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default = if cfg.enableHTTPS then 8443 else null;
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defaultText = lib.literalExpression ''
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if config.${opt.enableHTTPS}
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then "8443"
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else null
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'';
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description = "Allow requests from a specific port.";
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};
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initUser = lib.mkOption {
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type = lib.types.nullOr lib.types.str;
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default = null;
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description = "Initial user account for Apache NiFi. Username must be at least 4 characters.";
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};
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initPasswordFile = lib.mkOption {
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type = lib.types.nullOr lib.types.path;
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default = null;
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example = "/run/keys/nifi/password-nifi";
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description = "nitial password for Apache NiFi. Password must be at least 12 characters.";
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};
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initJavaHeapSize = lib.mkOption {
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type = lib.types.nullOr lib.types.int;
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default = null;
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example = 1024;
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description = "Set the initial heap size for the JVM in MB.";
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};
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maxJavaHeapSize = lib.mkOption {
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type = lib.types.nullOr lib.types.int;
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default = null;
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example = 2048;
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description = "Set the initial heap size for the JVM in MB.";
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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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assertions = [
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{ assertion = cfg.initUser!=null || cfg.initPasswordFile==null;
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message = ''
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<option>services.nifi.initUser</option> needs to be set if <option>services.nifi.initPasswordFile</option> enabled.
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'';
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}
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{ assertion = cfg.initUser==null || cfg.initPasswordFile!=null;
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message = ''
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<option>services.nifi.initPasswordFile</option> needs to be set if <option>services.nifi.initUser</option> enabled.
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'';
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}
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{ assertion = cfg.proxyHost==null || cfg.proxyPort!=null;
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message = ''
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<option>services.nifi.proxyPort</option> needs to be set if <option>services.nifi.proxyHost</option> value specified.
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'';
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}
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{ assertion = cfg.proxyHost!=null || cfg.proxyPort==null;
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message = ''
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<option>services.nifi.proxyHost</option> needs to be set if <option>services.nifi.proxyPort</option> value specified.
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'';
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}
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{ assertion = cfg.initJavaHeapSize==null || cfg.maxJavaHeapSize!=null;
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message = ''
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<option>services.nifi.maxJavaHeapSize</option> needs to be set if <option>services.nifi.initJavaHeapSize</option> value specified.
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'';
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}
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{ assertion = cfg.initJavaHeapSize!=null || cfg.maxJavaHeapSize==null;
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message = ''
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<option>services.nifi.initJavaHeapSize</option> needs to be set if <option>services.nifi.maxJavaHeapSize</option> value specified.
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'';
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}
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];
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warnings = lib.optional (cfg.enableHTTPS==false) ''
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Please do not disable HTTPS mode in production. In this mode, access to the nifi is opened without authentication.
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'';
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systemd.tmpfiles.rules = [
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"d '/var/lib/nifi/conf' 0750 ${cfg.user} ${cfg.group}"
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"L+ '/var/lib/nifi/lib' - - - - ${cfg.package}/lib"
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];
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systemd.services.nifi = {
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description = "Apache NiFi";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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environment = env;
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path = [ pkgs.gawk ];
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serviceConfig = {
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Type = "forking";
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PIDFile = "/run/nifi/nifi.pid";
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ExecStartPre = pkgs.writeScript "nifi-pre-start.sh" ''
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#!/bin/sh
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umask 077
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test -f '/var/lib/nifi/conf/authorizers.xml' || (cp '${cfg.package}/share/nifi/conf/authorizers.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/authorizers.xml')
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test -f '/var/lib/nifi/conf/bootstrap.conf' || (cp '${cfg.package}/share/nifi/conf/bootstrap.conf' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/bootstrap.conf')
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test -f '/var/lib/nifi/conf/bootstrap-hashicorp-vault.conf' || (cp '${cfg.package}/share/nifi/conf/bootstrap-hashicorp-vault.conf' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/bootstrap-hashicorp-vault.conf')
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test -f '/var/lib/nifi/conf/bootstrap-notification-services.xml' || (cp '${cfg.package}/share/nifi/conf/bootstrap-notification-services.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/bootstrap-notification-services.xml')
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test -f '/var/lib/nifi/conf/logback.xml' || (cp '${cfg.package}/share/nifi/conf/logback.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/logback.xml')
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test -f '/var/lib/nifi/conf/login-identity-providers.xml' || (cp '${cfg.package}/share/nifi/conf/login-identity-providers.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/login-identity-providers.xml')
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test -f '/var/lib/nifi/conf/nifi.properties' || (cp '${cfg.package}/share/nifi/conf/nifi.properties' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/nifi.properties')
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test -f '/var/lib/nifi/conf/stateless-logback.xml' || (cp '${cfg.package}/share/nifi/conf/stateless-logback.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/stateless-logback.xml')
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test -f '/var/lib/nifi/conf/stateless.properties' || (cp '${cfg.package}/share/nifi/conf/stateless.properties' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/stateless.properties')
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test -f '/var/lib/nifi/conf/state-management.xml' || (cp '${cfg.package}/share/nifi/conf/state-management.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/state-management.xml')
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test -f '/var/lib/nifi/conf/zookeeper.properties' || (cp '${cfg.package}/share/nifi/conf/zookeeper.properties' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/zookeeper.properties')
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test -d '/var/lib/nifi/docs/html' || (mkdir -p /var/lib/nifi/docs && cp -r '${cfg.package}/share/nifi/docs/html' '/var/lib/nifi/docs/html')
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${lib.optionalString ((cfg.initUser != null) && (cfg.initPasswordFile != null)) ''
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awk -F'[<|>]' '/property name="Username"/ {if ($3!="") f=1} END{exit !f}' /var/lib/nifi/conf/login-identity-providers.xml || ${cfg.package}/bin/nifi.sh set-single-user-credentials ${cfg.initUser} $(cat ${cfg.initPasswordFile})
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''}
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${lib.optionalString (cfg.enableHTTPS == false) ''
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sed -i /var/lib/nifi/conf/nifi.properties \
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-e 's|nifi.remote.input.secure=.*|nifi.remote.input.secure=false|g' \
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-e 's|nifi.web.http.host=.*|nifi.web.http.host=${cfg.listenHost}|g' \
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-e 's|nifi.web.http.port=.*|nifi.web.http.port=${(toString cfg.listenPort)}|g' \
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-e 's|nifi.web.https.host=.*|nifi.web.https.host=|g' \
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-e 's|nifi.web.https.port=.*|nifi.web.https.port=|g' \
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-e 's|nifi.security.keystore=.*|nifi.security.keystore=|g' \
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-e 's|nifi.security.keystoreType=.*|nifi.security.keystoreType=|g' \
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-e 's|nifi.security.truststore=.*|nifi.security.truststore=|g' \
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-e 's|nifi.security.truststoreType=.*|nifi.security.truststoreType=|g' \
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-e '/nifi.security.keystorePasswd/s|^|#|' \
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-e '/nifi.security.keyPasswd/s|^|#|' \
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-e '/nifi.security.truststorePasswd/s|^|#|'
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''}
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${lib.optionalString (cfg.enableHTTPS == true) ''
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sed -i /var/lib/nifi/conf/nifi.properties \
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-e 's|nifi.remote.input.secure=.*|nifi.remote.input.secure=true|g' \
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-e 's|nifi.web.http.host=.*|nifi.web.http.host=|g' \
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-e 's|nifi.web.http.port=.*|nifi.web.http.port=|g' \
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-e 's|nifi.web.https.host=.*|nifi.web.https.host=${cfg.listenHost}|g' \
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-e 's|nifi.web.https.port=.*|nifi.web.https.port=${(toString cfg.listenPort)}|g' \
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-e 's|nifi.security.keystore=.*|nifi.security.keystore=./conf/keystore.p12|g' \
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-e 's|nifi.security.keystoreType=.*|nifi.security.keystoreType=PKCS12|g' \
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-e 's|nifi.security.truststore=.*|nifi.security.truststore=./conf/truststore.p12|g' \
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-e 's|nifi.security.truststoreType=.*|nifi.security.truststoreType=PKCS12|g' \
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-e '/nifi.security.keystorePasswd/s|^#\+||' \
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-e '/nifi.security.keyPasswd/s|^#\+||' \
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-e '/nifi.security.truststorePasswd/s|^#\+||'
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''}
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${lib.optionalString ((cfg.enableHTTPS == true) && (cfg.proxyHost != null) && (cfg.proxyPort != null)) ''
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sed -i /var/lib/nifi/conf/nifi.properties \
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-e 's|nifi.web.proxy.host=.*|nifi.web.proxy.host=${cfg.proxyHost}:${(toString cfg.proxyPort)}|g'
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''}
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${lib.optionalString ((cfg.enableHTTPS == false) || (cfg.proxyHost == null) && (cfg.proxyPort == null)) ''
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sed -i /var/lib/nifi/conf/nifi.properties \
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-e 's|nifi.web.proxy.host=.*|nifi.web.proxy.host=|g'
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''}
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${lib.optionalString ((cfg.initJavaHeapSize != null) && (cfg.maxJavaHeapSize != null))''
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sed -i /var/lib/nifi/conf/bootstrap.conf \
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-e 's|java.arg.2=.*|java.arg.2=-Xms${(toString cfg.initJavaHeapSize)}m|g' \
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-e 's|java.arg.3=.*|java.arg.3=-Xmx${(toString cfg.maxJavaHeapSize)}m|g'
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''}
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${lib.optionalString ((cfg.initJavaHeapSize == null) && (cfg.maxJavaHeapSize == null))''
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sed -i /var/lib/nifi/conf/bootstrap.conf \
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-e 's|java.arg.2=.*|java.arg.2=-Xms512m|g' \
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-e 's|java.arg.3=.*|java.arg.3=-Xmx512m|g'
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''}
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'';
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ExecStart = "${cfg.package}/bin/nifi.sh start";
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ExecStop = "${cfg.package}/bin/nifi.sh stop";
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# User and group
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User = cfg.user;
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Group = cfg.group;
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# Runtime directory and mode
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RuntimeDirectory = "nifi";
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RuntimeDirectoryMode = "0750";
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# State directory and mode
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StateDirectory = "nifi";
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StateDirectoryMode = "0750";
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# Logs directory and mode
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LogsDirectory = "nifi";
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LogsDirectoryMode = "0750";
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# Proc filesystem
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ProcSubset = "pid";
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ProtectProc = "invisible";
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# Access write directories
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ReadWritePaths = [ cfg.initPasswordFile ];
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UMask = "0027";
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# Capabilities
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CapabilityBoundingSet = "";
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# Security
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NoNewPrivileges = true;
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# Sandboxing
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ProtectSystem = "strict";
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ProtectHome = true;
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PrivateTmp = true;
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PrivateDevices = true;
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PrivateIPC = true;
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PrivateUsers = true;
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ProtectHostname = true;
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ProtectClock = true;
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ProtectKernelTunables = true;
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ProtectKernelModules = true;
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ProtectKernelLogs = true;
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ProtectControlGroups = true;
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RestrictAddressFamilies = [ "AF_INET AF_INET6" ];
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RestrictNamespaces = true;
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LockPersonality = true;
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MemoryDenyWriteExecute = false;
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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RemoveIPC = true;
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PrivateMounts = true;
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# System Call Filtering
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SystemCallArchitectures = "native";
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SystemCallFilter = [ "~@cpu-emulation @debug @keyring @memlock @mount @obsolete @resources @privileged @setuid" "@chown" ];
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};
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};
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users.users = lib.mkMerge [
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(lib.mkIf (cfg.user == "nifi") {
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nifi = {
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group = cfg.group;
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isSystemUser = true;
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home = cfg.package;
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};
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})
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(lib.attrsets.setAttrByPath [ cfg.user "packages" ] [ cfg.package nifiEnv ])
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];
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users.groups = lib.optionalAttrs (cfg.group == "nifi") {
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nifi = { };
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};
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};
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}
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