Connection to rabbitmq failed when deploying spring cloud data flow in the local

I referenced the documentation: https://dataflow.spring.io/docs/installation/local/manual/ to run the spring cloud data flow in my local mac, and then deployed an http | log stream according to https://dataflow.spring.io/docs/stream-developer-guides/getting-started/stream/.

But during the "verifying output (local)" step (https://dataflow.spring.io/docs/stream-developer-guides/getting-started/stream/#local), I failed.

I can see there are a lot of connection error in the log:

Summary, the steps I took:

• In terminal 1, start rabbitmq by docker run -d --hostname rabbitmq --name rabbitmq -p 15672:15672 -p 5672:5672 rabbitmq:3.7
• Then in terminal 1, start skipper server by java -jar spring-cloud-skipper-server-2.9.2.jar
• Then in terminal 2, start dataflow server by java -jar spring-cloud-dataflow-server-2.10.2.jar
• Then in terminal 3, start dataflow shell by java -jar spring-cloud-dataflow-shell-2.10.2.jar
• Open http://localhost:9393/dashboard/index.html#/streams/list/http-ingest dashboard to create stream and deploy
• Then in terminal 4, send curl http://localhost:20100 -H "Content-type: text/plain" -d "Happy streaming". The request was successfully sent, but no response body.

Additional information

I can get success response from localhost:20100 like:

The docker containers are as follows:

Expected (Help wanted!)

I can verify the output as suggested by the documentation.

Actual result:

But I didn't get the log. Instead, I get the following:

2023-08-09 03:25:47.057  INFO [http-source,2aa0ce95298cd6b1,db9808ed2bfa4443] 1 --- [oundedElastic-1] o.s.a.r.c.CachingConnectionFactory       : Attempting to connect to: [localhost:5672]
2023-08-09 03:26:47.705 ERROR [http-source,2aa0ce95298cd6b1,f116c3c77334209a] 1 --- [oundedElastic-1] o.s.integration.handler.LoggingHandler   : org.springframework.messaging.MessageHandlingException: error occurred in message handler [org.springframework.integration.amqp.outbound.AmqpOutboundEndpoint@7a71c2e3]; nested exception is org.springframework.amqp.AmqpIOException: java.net.SocketTimeoutException: connect timed out, failedMessage=GenericMessage [payload=byte[15], headers={content-length=15, http_requestMethod=POST, b3=2aa0ce95298cd6b1-db9808ed2bfa4443-0, nativeHeaders={}, host=localhost:20100, http_requestUrl=http://localhost:20100/, id=1bd16f86-c76a-fb4c-4362-6df88325daf7, contentType=text/plain, user-agent=curl/7.82.0, accept=*/*, timestamp=1691551546926}]
	at org.springframework.integration.support.utils.IntegrationUtils.wrapInHandlingExceptionIfNecessary(IntegrationUtils.java:191)
	at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:65)
	at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder$SendingHandler.handleMessageInternal(AbstractMessageChannelBinder.java:1074)
	at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:56)
	at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:115)
	at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:133)
	at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:106)
	at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:72)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:317)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:272)
	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:187)
	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:166)
	at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47)
	at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:109)
	at org.springframework.integration.router.AbstractMessageRouter.doSend(AbstractMessageRouter.java:213)
	at org.springframework.integration.router.AbstractMessageRouter.handleMessageInternal(AbstractMessageRouter.java:195)
	at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:56)
	at org.springframework.integration.handler.AbstractMessageHandler.onNext(AbstractMessageHandler.java:88)
	at org.springframework.integration.handler.AbstractMessageHandler.onNext(AbstractMessageHandler.java:37)
	at org.springframework.integration.endpoint.ReactiveStreamsConsumer$SubscriberDecorator.hookOnNext(ReactiveStreamsConsumer.java:296)
	at org.springframework.integration.endpoint.ReactiveStreamsConsumer$SubscriberDecorator.hookOnNext(ReactiveStreamsConsumer.java:277)
	at reactor.core.publisher.BaseSubscriber.onNext(BaseSubscriber.java:160)
	at reactor.core.publisher.FluxRefCount$RefCountInner.onNext(FluxRefCount.java:200)
	at reactor.core.publisher.FluxPublish$PublishSubscriber.drain(FluxPublish.java:477)
	at reactor.core.publisher.FluxPublish$PublishSubscriber.onNext(FluxPublish.java:268)
	at reactor.core.publisher.FluxDoFinally$DoFinallySubscriber.onNext(FluxDoFinally.java:130)
	at reactor.core.publisher.EmitterProcessor.drain(EmitterProcessor.java:491)
	at reactor.core.publisher.EmitterProcessor.tryEmitNext(EmitterProcessor.java:299)
	at reactor.core.publisher.SinkManySerialized.tryEmitNext(SinkManySerialized.java:100)
	at org.springframework.integration.channel.FluxMessageChannel.tryEmitMessage(FluxMessageChannel.java:82)
	at org.springframework.integration.channel.FluxMessageChannel.doSend(FluxMessageChannel.java:71)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:317)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:272)
	at org.springframework.integration.channel.FluxMessageChannel.lambda$subscribeTo$5(FluxMessageChannel.java:123)
	at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:196)
	at reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.runAsync(FluxPublishOn.java:440)
	at reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.run(FluxPublishOn.java:527)
	at org.springframework.cloud.sleuth.instrument.reactor.ReactorSleuth.lambda$null$6(ReactorSleuth.java:324)
	at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)
	at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.amqp.AmqpIOException: java.net.SocketTimeoutException: connect timed out
	at org.springframework.amqp.rabbit.support.RabbitExceptionTranslator.convertRabbitAccessException(RabbitExceptionTranslator.java:70)
	at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.createBareConnection(AbstractConnectionFactory.java:602)
	at org.springframework.amqp.rabbit.connection.CachingConnectionFactory.createConnection(CachingConnectionFactory.java:725)
	at org.springframework.amqp.rabbit.connection.ConnectionFactoryUtils.createConnection(ConnectionFactoryUtils.java:249)
	at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:2173)
	at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:2146)
	at org.springframework.amqp.rabbit.core.RabbitTemplate.send(RabbitTemplate.java:1072)
	at org.springframework.integration.amqp.outbound.AmqpOutboundEndpoint.doRabbitSend(AmqpOutboundEndpoint.java:250)
	at org.springframework.integration.amqp.outbound.AmqpOutboundEndpoint.send(AmqpOutboundEndpoint.java:231)
	at org.springframework.integration.amqp.outbound.AmqpOutboundEndpoint.handleRequestMessage(AmqpOutboundEndpoint.java:180)
	at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:136)
	at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:56)
	... 43 more
Caused by: java.net.SocketTimeoutException: connect timed out
	at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.base/java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
	at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
	at java.base/java.net.AbstractPlainSocketImpl.connect(Unknown Source)
	at java.base/java.net.SocksSocketImpl.connect(Unknown Source)
	at java.base/java.net.Socket.connect(Unknown Source)
	at com.rabbitmq.client.impl.SocketFrameHandlerFactory.create(SocketFrameHandlerFactory.java:60)
	at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1223)
	at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1173)
	at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.connectAddresses(AbstractConnectionFactory.java:640)
	at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.connect(AbstractConnectionFactory.java:615)
	at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.createBareConnection(AbstractConnectionFactory.java:565)
	... 53 more

Fixed by connecting to the rabbitmq using host IP as it's run by docker.

But I followed the documentation to run it using docker, which lead to connection issues. I think the official document should be updated.

To get host IP, for mac osx you can use

ipconfig getifaddr en0
192.168.1.10

And then configure it into the apps during deploying stream step.

app.http.spring.rabbitmq.host=192.168.1.10
app.log.spring.rabbitmq.host=192.168.1.10