nixpkgs/nixos/tests/kafka.nix

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{ system ? builtins.currentSystem,
config ? {},
pkgs ? import ../.. { inherit system config; }
}:
with import ../lib/testing.nix { inherit system pkgs; };
with pkgs.lib;
let
makeKafkaTest = name: kafkaPackage: (makeTest {
inherit name;
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ nequissimus ];
};
nodes = {
zookeeper1 = { ... }: {
services.zookeeper = {
enable = true;
};
networking.firewall.allowedTCPPorts = [ 2181 ];
virtualisation.memorySize = 1024;
};
kafka = { ... }: {
services.apache-kafka = {
enable = true;
extraProperties = ''
offsets.topic.replication.factor = 1
zookeeper.session.timeout.ms = 600000
'';
package = kafkaPackage;
zookeeper = "zookeeper1:2181";
# These are the default options, but UseCompressedOops doesn't work with 32bit JVM
jvmOptions = [
"-server" "-Xmx1G" "-Xms1G" "-XX:+UseParNewGC" "-XX:+UseConcMarkSweepGC" "-XX:+CMSClassUnloadingEnabled"
"-XX:+CMSScavengeBeforeRemark" "-XX:+DisableExplicitGC" "-Djava.awt.headless=true" "-Djava.net.preferIPv4Stack=true"
] ++ optionals (! pkgs.stdenv.isi686 ) [ "-XX:+UseCompressedOops" ];
};
networking.firewall.allowedTCPPorts = [ 9092 ];
# i686 tests: qemu-system-i386 can simulate max 2047MB RAM (not 2048)
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virtualisation.memorySize = 2047;
};
};
testScript = ''
startAll;
$zookeeper1->waitForUnit("default.target");
$zookeeper1->waitForUnit("zookeeper.service");
$zookeeper1->waitForOpenPort(2181);
$kafka->waitForUnit("default.target");
$kafka->waitForUnit("apache-kafka.service");
$kafka->waitForOpenPort(9092);
$kafka->waitUntilSucceeds("${kafkaPackage}/bin/kafka-topics.sh --create --zookeeper zookeeper1:2181 --partitions 1 --replication-factor 1 --topic testtopic");
$kafka->mustSucceed("echo 'test 1' | ${kafkaPackage}/bin/kafka-console-producer.sh --broker-list localhost:9092 --topic testtopic");
'' + (if name == "kafka_0_9" then ''
$kafka->mustSucceed("${kafkaPackage}/bin/kafka-console-consumer.sh --zookeeper zookeeper1:2181 --topic testtopic --from-beginning --max-messages 1 | grep 'test 1'");
'' else ''
$kafka->mustSucceed("${kafkaPackage}/bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic testtopic --from-beginning --max-messages 1 | grep 'test 1'");
'');
});
in with pkgs; {
kafka_0_9 = makeKafkaTest "kafka_0_9" apacheKafka_0_9;
kafka_0_10 = makeKafkaTest "kafka_0_10" apacheKafka_0_10;
kafka_0_11 = makeKafkaTest "kafka_0_11" apacheKafka_0_11;
kafka_1_0 = makeKafkaTest "kafka_1_0" apacheKafka_1_0;
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kafka_1_1 = makeKafkaTest "kafka_1_1" apacheKafka_1_1;
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kafka_2_0 = makeKafkaTest "kafka_2_0" apacheKafka_2_0;
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kafka_2_1 = makeKafkaTest "kafka_2_1" apacheKafka_2_1;
}