29027fd1e1
Using pkgs.lib on the spine of module evaluation is problematic because the pkgs argument depends on the result of module evaluation. To prevent an infinite recursion, pkgs and some of the modules are evaluated twice, which is inefficient. Using ‘with lib’ prevents this problem.
90 lines
2.2 KiB
Nix
90 lines
2.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.rabbitmq;
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in {
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###### interface
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options = {
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services.rabbitmq = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable the RabbitMQ server, an Advanced Message
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Queuing Protocol (AMQP) broker.
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'';
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};
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listenAddress = mkOption {
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default = "127.0.0.1";
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example = "";
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description = ''
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IP address on which RabbitMQ will listen for AMQP
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connections. Set to the empty string to listen on all
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interfaces. Note that RabbitMQ creates a user named
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<literal>guest</literal> with password
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<literal>guest</literal> by default, so you should delete
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this user if you intend to allow external access.
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'';
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};
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dataDir = mkOption {
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type = types.path;
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default = "/var/lib/rabbitmq";
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description = ''
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Data directory for rabbitmq.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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environment.systemPackages = [ pkgs.rabbitmq_server ];
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users.extraUsers.rabbitmq = {
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description = "RabbitMQ server user";
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home = "${cfg.dataDir}";
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group = "rabbitmq";
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uid = config.ids.uids.rabbitmq;
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};
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users.extraGroups.rabbitmq.gid = config.ids.gids.rabbitmq;
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systemd.services.rabbitmq = {
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description = "RabbitMQ Server";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = {
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RABBITMQ_MNESIA_BASE = "${cfg.dataDir}/mnesia";
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RABBITMQ_NODE_IP_ADDRESS = cfg.listenAddress;
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RABBITMQ_SERVER_START_ARGS = "-rabbit error_logger tty -rabbit sasl_error_logger false";
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SYS_PREFIX = "";
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};
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serviceConfig = {
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ExecStart = "${pkgs.rabbitmq_server}/sbin/rabbitmq-server";
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User = "rabbitmq";
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Group = "rabbitmq";
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PermissionsStartOnly = true;
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};
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preStart = ''
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mkdir -p ${cfg.dataDir} && chmod 0700 ${cfg.dataDir}
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if [ "$(id -u)" = 0 ]; then chown rabbitmq:rabbitmq ${cfg.dataDir}; fi
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'';
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};
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};
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}
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