nixpkgs/nixos/tests/kafka.nix

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{ system ? builtins.currentSystem,
config ? {},
pkgs ? import ../.. { inherit system config; }
}:
with pkgs.lib;
let
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makeKafkaTest = name: kafkaPackage: (import ./make-test-python.nix ({
inherit name;
meta = with pkgs.lib.maintainers; {
maintainers = [ nequissimus ];
};
nodes = {
zookeeper1 = { ... }: {
services.zookeeper = {
enable = true;
};
networking.firewall.allowedTCPPorts = [ 2181 ];
};
kafka = { ... }: {
services.apache-kafka = {
enable = true;
extraProperties = ''
offsets.topic.replication.factor = 1
zookeeper.session.timeout.ms = 600000
'';
package = kafkaPackage;
zookeeper = "zookeeper1:2181";
};
networking.firewall.allowedTCPPorts = [ 9092 ];
# i686 tests: qemu-system-i386 can simulate max 2047MB RAM (not 2048)
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virtualisation.memorySize = 2047;
};
};
testScript = ''
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start_all()
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zookeeper1.wait_for_unit("default.target")
zookeeper1.wait_for_unit("zookeeper.service")
zookeeper1.wait_for_open_port(2181)
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kafka.wait_for_unit("default.target")
kafka.wait_for_unit("apache-kafka.service")
kafka.wait_for_open_port(9092)
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kafka.wait_until_succeeds(
"${kafkaPackage}/bin/kafka-topics.sh --create "
+ "--zookeeper zookeeper1:2181 --partitions 1 "
+ "--replication-factor 1 --topic testtopic"
)
kafka.succeed(
"echo 'test 1' | "
+ "${kafkaPackage}/bin/kafka-console-producer.sh "
+ "--broker-list localhost:9092 --topic testtopic"
)
'' + (if name == "kafka_0_9" then ''
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assert "test 1" in kafka.succeed(
"${kafkaPackage}/bin/kafka-console-consumer.sh "
+ "--zookeeper zookeeper1:2181 --topic testtopic "
+ "--from-beginning --max-messages 1"
)
'' else ''
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assert "test 1" in kafka.succeed(
"${kafkaPackage}/bin/kafka-console-consumer.sh "
+ "--bootstrap-server localhost:9092 --topic testtopic "
+ "--from-beginning --max-messages 1"
)
'');
}) { inherit system; });
in with pkgs; {
kafka_2_7 = makeKafkaTest "kafka_2_7" apacheKafka_2_7;
kafka_2_8 = makeKafkaTest "kafka_2_8" apacheKafka_2_8;
}