springwolf-amqp-example fails

[hirth-abi]

Describe the bug

When I try to run the springwolf-amqp-example as described in the README it fails with amqp: nodename nor servname provided, or not known

Dependencies and versions used

Current master branch.

Code example

cd springwolf-core && ./gradlew build -p springwolf-examples/springwolf-amqp-example bootRun

Stack trace and error logs

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rabbitMqReadinessVerifier' defined in file [/Users/GUCSVEH/Projekte/springwolf-core/springwolf-examples/springwolf-amqp-example/build/classes/java/main/io/github/springwolf/examples/amqp/configuration/RabbitMqReadinessVerifier.class]: Failed to instantiate [io.github.springwolf.examples.amqp.configuration.RabbitMqReadinessVerifier$$SpringCGLIB$$0]: Constructor threw exception
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:318) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:306) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1375) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1212) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:562) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:337) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:335) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:975) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:971) ~[spring-context-6.1.11.jar:6.1.11]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:625) ~[spring-context-6.1.11.jar:6.1.11]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.3.2.jar:3.3.2]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-3.3.2.jar:3.3.2]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:456) ~[spring-boot-3.3.2.jar:3.3.2]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:335) ~[spring-boot-3.3.2.jar:3.3.2]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1363) ~[spring-boot-3.3.2.jar:3.3.2]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1352) ~[spring-boot-3.3.2.jar:3.3.2]
        at io.github.springwolf.examples.amqp.SpringwolfAmqpExampleApplication.main(SpringwolfAmqpExampleApplication.java:11) ~[main/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.github.springwolf.examples.amqp.configuration.RabbitMqReadinessVerifier$$SpringCGLIB$$0]: Constructor threw exception
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:221) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:117) ~[spring-beans-6.1.11.jar:6.1.11]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:315) ~[spring-beans-6.1.11.jar:6.1.11]
        ... 19 common frames omitted
Caused by: org.springframework.amqp.AmqpIOException: java.net.UnknownHostException: amqp: nodename nor servname provided, or not known
        at org.springframework.amqp.rabbit.support.RabbitExceptionTranslator.convertRabbitAccessException(RabbitExceptionTranslator.java:70) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.createBareConnection(AbstractConnectionFactory.java:622) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.connection.CachingConnectionFactory.createConnection(CachingConnectionFactory.java:726) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.connection.ConnectionFactoryUtils.createConnection(ConnectionFactoryUtils.java:257) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:2249) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:2222) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:2202) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at io.github.springwolf.examples.amqp.configuration.RabbitMqReadinessVerifier.verifyRabbitMqIsUp(RabbitMqReadinessVerifier.java:33) ~[main/:na]
        at io.github.springwolf.examples.amqp.configuration.RabbitMqReadinessVerifier.<init>(RabbitMqReadinessVerifier.java:22) ~[main/:na]
        at io.github.springwolf.examples.amqp.configuration.RabbitMqReadinessVerifier$$SpringCGLIB$$0.<init>(<generated>) ~[main/:na]
        at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62) ~[na:na]
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502) ~[na:na]
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[na:na]
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:208) ~[spring-beans-6.1.11.jar:6.1.11]
        ... 21 common frames omitted
Caused by: java.net.UnknownHostException: amqp: nodename nor servname provided, or not known
        at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:na]
        at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:52) ~[na:na]
        at java.base/java.net.InetAddress$PlatformResolver.lookupByName(InetAddress.java:1211) ~[na:na]
        at java.base/java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1828) ~[na:na]
        at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:1139) ~[na:na]
        at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1818) ~[na:na]
        at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1688) ~[na:na]
        at com.rabbitmq.client.DnsRecordIpAddressResolver.resolveIpAddresses(DnsRecordIpAddressResolver.java:83) ~[amqp-client-5.21.0.jar:5.21.0]
        at com.rabbitmq.client.DnsRecordIpAddressResolver.getAddresses(DnsRecordIpAddressResolver.java:73) ~[amqp-client-5.21.0.jar:5.21.0]
        at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1245) ~[amqp-client-5.21.0.jar:5.21.0]
        at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1198) ~[amqp-client-5.21.0.jar:5.21.0]
        at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.connectAddresses(AbstractConnectionFactory.java:668) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.connect(AbstractConnectionFactory.java:637) ~[spring-rabbit-3.1.6.jar:3.1.6]
        at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.createBareConnection(AbstractConnectionFactory.java:584) ~[spring-rabbit-3.1.6.jar:3.1.6]
        ... 33 common frames omitted

[timonback]

Hi @hirth-abi ,

looks like amqp is not running, or the hostname does not match.
Have you tried starting the docker-compose amqp service and updated the spring.rabbit.host in application.properties to localhost?

I do notice a gap in the readme explaining this step. In #886 the default values are updated so that only amqp must be started

[hirth-abi]

Ah yes, since it was not mentioned in the readme, I haven't started it. So it works 👍

But maybe activate the Spring Boot Docker Compose integration to start it automatically? It's one line and worked out of the box for me (2c3cd54)

[timonback]

Great. Unfortunately, the docker-compose setup is also tied to the integration tests.
And test containers throws an error, when containers are already running (which are automatically started by spring boot docker compose starter).

Therefore, I opted for the manual approach and updated the docs -> #894