152 lines
3.9 KiB
Nix
152 lines
3.9 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.services.apache-kafka;
|
|
|
|
serverProperties =
|
|
if cfg.serverProperties != null then
|
|
cfg.serverProperties
|
|
else
|
|
''
|
|
# Generated by nixos
|
|
broker.id=${toString cfg.brokerId}
|
|
port=${toString cfg.port}
|
|
host.name=${cfg.hostname}
|
|
log.dirs=${concatStringsSep "," cfg.logDirs}
|
|
zookeeper.connect=${cfg.zookeeper}
|
|
${toString cfg.extraProperties}
|
|
'';
|
|
|
|
serverConfig = pkgs.writeText "server.properties" serverProperties;
|
|
logConfig = pkgs.writeText "log4j.properties" cfg.log4jProperties;
|
|
|
|
in {
|
|
|
|
options.services.apache-kafka = {
|
|
enable = mkOption {
|
|
description = "Whether to enable Apache Kafka.";
|
|
default = false;
|
|
type = types.bool;
|
|
};
|
|
|
|
brokerId = mkOption {
|
|
description = "Broker ID.";
|
|
default = -1;
|
|
type = types.int;
|
|
};
|
|
|
|
port = mkOption {
|
|
description = "Port number the broker should listen on.";
|
|
default = 9092;
|
|
type = types.int;
|
|
};
|
|
|
|
hostname = mkOption {
|
|
description = "Hostname the broker should bind to.";
|
|
default = "localhost";
|
|
type = types.str;
|
|
};
|
|
|
|
logDirs = mkOption {
|
|
description = "Log file directories";
|
|
default = [ "/tmp/kafka-logs" ];
|
|
type = types.listOf types.path;
|
|
};
|
|
|
|
zookeeper = mkOption {
|
|
description = "Zookeeper connection string";
|
|
default = "localhost:2181";
|
|
type = types.str;
|
|
};
|
|
|
|
extraProperties = mkOption {
|
|
description = "Extra properties for server.properties.";
|
|
type = types.nullOr types.lines;
|
|
default = null;
|
|
};
|
|
|
|
serverProperties = mkOption {
|
|
description = ''
|
|
Complete server.properties content. Other server.properties config
|
|
options will be ignored if this option is used.
|
|
'';
|
|
type = types.nullOr types.lines;
|
|
default = null;
|
|
};
|
|
|
|
log4jProperties = mkOption {
|
|
description = "Kafka log4j property configuration.";
|
|
default = ''
|
|
log4j.rootLogger=INFO, stdout
|
|
|
|
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
|
|
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
|
|
log4j.appender.stdout.layout.ConversionPattern=[%d] %p %m (%c)%n
|
|
'';
|
|
type = types.lines;
|
|
};
|
|
|
|
jvmOptions = mkOption {
|
|
description = "Extra command line options for the JVM running Kafka.";
|
|
default = [];
|
|
type = types.listOf types.str;
|
|
example = [
|
|
"-Djava.net.preferIPv4Stack=true"
|
|
"-Dcom.sun.management.jmxremote"
|
|
"-Dcom.sun.management.jmxremote.local.only=true"
|
|
];
|
|
};
|
|
|
|
package = mkOption {
|
|
description = "The kafka package to use";
|
|
default = pkgs.apacheKafka;
|
|
defaultText = literalExpression "pkgs.apacheKafka";
|
|
type = types.package;
|
|
};
|
|
|
|
jre = mkOption {
|
|
description = "The JRE with which to run Kafka";
|
|
default = cfg.package.passthru.jre;
|
|
defaultText = literalExpression "pkgs.apacheKafka.passthru.jre";
|
|
type = types.package;
|
|
};
|
|
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
|
|
environment.systemPackages = [cfg.package];
|
|
|
|
users.users.apache-kafka = {
|
|
isSystemUser = true;
|
|
group = "apache-kafka";
|
|
description = "Apache Kafka daemon user";
|
|
home = head cfg.logDirs;
|
|
};
|
|
users.groups.apache-kafka = {};
|
|
|
|
systemd.tmpfiles.rules = map (logDir: "d '${logDir}' 0700 apache-kafka - - -") cfg.logDirs;
|
|
|
|
systemd.services.apache-kafka = {
|
|
description = "Apache Kafka Daemon";
|
|
wantedBy = [ "multi-user.target" ];
|
|
after = [ "network.target" ];
|
|
serviceConfig = {
|
|
ExecStart = ''
|
|
${cfg.jre}/bin/java \
|
|
-cp "${cfg.package}/libs/*" \
|
|
-Dlog4j.configuration=file:${logConfig} \
|
|
${toString cfg.jvmOptions} \
|
|
kafka.Kafka \
|
|
${serverConfig}
|
|
'';
|
|
User = "apache-kafka";
|
|
SuccessExitStatus = "0 143";
|
|
};
|
|
};
|
|
|
|
};
|
|
}
|