{ config, lib, pkgs, ... }: with lib; let cfg = config.services.rabbitmq; inherit (builtins) concatStringsSep; config_file_content = lib.generators.toKeyValue {} cfg.configItems; config_file = pkgs.writeText "rabbitmq.conf" config_file_content; advanced_config_file = pkgs.writeText "advanced.config" cfg.config; in { ###### interface options = { services.rabbitmq = { enable = mkOption { default = false; description = '' Whether to enable the RabbitMQ server, an Advanced Message Queuing Protocol (AMQP) broker. ''; }; package = mkOption { default = pkgs.rabbitmq-server; type = types.package; defaultText = "pkgs.rabbitmq-server"; description = '' Which rabbitmq package to use. ''; }; listenAddress = mkOption { default = "127.0.0.1"; example = ""; description = '' IP address on which RabbitMQ will listen for AMQP connections. Set to the empty string to listen on all interfaces. Note that RabbitMQ creates a user named guest with password guest by default, so you should delete this user if you intend to allow external access. Together with 'port' setting it's mostly an alias for configItems."listeners.tcp.1" and it's left for backwards compatibility with previous version of this module. ''; type = types.str; }; port = mkOption { default = 5672; description = '' Port on which RabbitMQ will listen for AMQP connections. ''; type = types.int; }; dataDir = mkOption { type = types.path; default = "/var/lib/rabbitmq"; description = '' Data directory for rabbitmq. ''; }; cookie = mkOption { default = ""; type = types.str; description = '' Erlang cookie is a string of arbitrary length which must be the same for several nodes to be allowed to communicate. Leave empty to generate automatically. ''; }; configItems = mkOption { default = {}; type = types.attrsOf types.str; example = '' { "auth_backends.1.authn" = "rabbit_auth_backend_ldap"; "auth_backends.1.authz" = "rabbit_auth_backend_internal"; } ''; description = '' Configuration options in RabbitMQ's new config file format, which is a simple key-value format that can not express nested data structures. This is known as the rabbitmq.conf file, although outside NixOS that filename may have Erlang syntax, particularly prior to RabbitMQ 3.7.0. If you do need to express nested data structures, you can use config option. Configuration from config will be merged into these options by RabbitMQ at runtime to form the final configuration. See http://www.rabbitmq.com/configure.html#config-items For the distinct formats, see http://www.rabbitmq.com/configure.html#config-file-formats ''; }; config = mkOption { default = ""; type = types.str; description = '' Verbatim advanced configuration file contents using the Erlang syntax. This is also known as the advanced.config file or the old config format. configItems is preferred whenever possible. However, nested data structures can only be expressed properly using the config option. The contents of this option will be merged into the configItems by RabbitMQ at runtime to form the final configuration. See the second table on http://www.rabbitmq.com/configure.html#config-items For the distinct formats, see http://www.rabbitmq.com/configure.html#config-file-formats ''; }; plugins = mkOption { default = []; type = types.listOf types.str; description = "The names of plugins to enable"; }; pluginDirs = mkOption { default = []; type = types.listOf types.path; description = "The list of directories containing external plugins"; }; }; }; ###### implementation config = mkIf cfg.enable { # This is needed so we will have 'rabbitmqctl' in our PATH environment.systemPackages = [ cfg.package ]; services.epmd.enable = true; users.users.rabbitmq = { description = "RabbitMQ server user"; home = "${cfg.dataDir}"; createHome = true; group = "rabbitmq"; uid = config.ids.uids.rabbitmq; }; users.groups.rabbitmq.gid = config.ids.gids.rabbitmq; services.rabbitmq.configItems = { "listeners.tcp.1" = mkDefault "${cfg.listenAddress}:${toString cfg.port}"; }; systemd.services.rabbitmq = { description = "RabbitMQ Server"; wantedBy = [ "multi-user.target" ]; after = [ "network.target" "epmd.socket" ]; wants = [ "network.target" "epmd.socket" ]; path = [ cfg.package pkgs.procps ]; environment = { RABBITMQ_MNESIA_BASE = "${cfg.dataDir}/mnesia"; RABBITMQ_LOGS = "-"; SYS_PREFIX = ""; RABBITMQ_CONFIG_FILE = config_file; RABBITMQ_PLUGINS_DIR = concatStringsSep ":" cfg.pluginDirs; RABBITMQ_ENABLED_PLUGINS_FILE = pkgs.writeText "enabled_plugins" '' [ ${concatStringsSep "," cfg.plugins} ]. ''; } // optionalAttrs (cfg.config != "") { RABBITMQ_ADVANCED_CONFIG_FILE = advanced_config_file; }; serviceConfig = { PermissionsStartOnly = true; # preStart must be run as root ExecStart = "${cfg.package}/sbin/rabbitmq-server"; ExecStop = "${cfg.package}/sbin/rabbitmqctl shutdown"; User = "rabbitmq"; Group = "rabbitmq"; WorkingDirectory = cfg.dataDir; Type = "notify"; NotifyAccess = "all"; UMask = "0027"; LimitNOFILE = "100000"; Restart = "on-failure"; RestartSec = "10"; TimeoutStartSec = "3600"; }; preStart = '' ${optionalString (cfg.cookie != "") '' echo -n ${cfg.cookie} > ${cfg.dataDir}/.erlang.cookie chown rabbitmq:rabbitmq ${cfg.dataDir}/.erlang.cookie chmod 600 ${cfg.dataDir}/.erlang.cookie ''} mkdir -p /var/log/rabbitmq chown rabbitmq:rabbitmq /var/log/rabbitmq ''; }; }; }