Trying to connect a containerized spring boot app with an containerized kafka server - spring-boot

Question

I have a Spring Boot application which worked fine with Kafka in a container but when I containerize the Spring Boot application it won't work.
This is the docker-compose file with which I created
version: "3.4"
services:
zookeeper:
image: bitnami/zookeeper
restart: always
container_name: "zookeeper"
ports:
- "2181:2181"
volumes:
- "zookeeper_data:/bitnami"
environment:
- ALLOW_ANONYMOUS_LOGIN=yes
kafka:
image: bitnami/kafka
ports:
- "9092:9092"
restart: always
container_name: "kafka"
volumes:
- "kafka_data:/bitnami"
environment:
- KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
- ALLOW_PLAINTEXT_LISTENER=yes
- KAFKA_LISTENERS=PLAINTEXT://:9092
- KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092
depends_on:
- zookeeper
volumes:
zookeeper_data:
driver: local
kafka_data:
driver: local
The application.yml of the Spring Boot application
server:
port: 5001
spring:
jpa:
database-platform: org.hibernate.dialect.MySQL8Dialect
show-sql: true
hibernate:
ddl-auto: update
datasource:
url: jdbc:mysql://mysql-container:3306/craproject?autoReconnect=true&useSSL=false&useSSL=false&serverTimezone=UTC&createDatabaseIfNotExist=true
username: ***
password: ****
data:
mongodb:
host: mongo-container
port: 27017
database: craprojet
kafka:
bootstrap-servers:
- kafka:9092
consumer:
group-id: project-group
enable-auto-commit: false
auto-offset-reset: latest
isolation-level: read_committed
key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
value-deserializer: org.springframework.kafka.support.serializer.JsonDeserializer
producer:
key-serializer: org.apache.kafka.common.serialization.StringSerializer
value-serializer: org.springframework.kafka.support.serializer.JsonSerializer
The dockerfile with which I created the image of the app:
FROM openjdk:11
COPY target/project-service-1.jar project-service-1.jar
EXPOSE 5001
ENTRYPOINT ["java", "-jar" , "project-service-1.jar"]
The containers of kafka and data bases are running fine :
This is the command which i use to run the spring boot app container :
docker run --name project-service\
--network techbankNet\
-p 5001:5001\
--link mysql-container:mysql\
--link mongo-container:mongo\
--link adminer:adminer\
--link kafka:kafka project-service
the log:
2022-08-23 19:05:05.170 INFO 1 --- [ main] o.a.k.clients.consumer.ConsumerConfig : ConsumerConfig values:
allow.auto.create.topics = true
auto.commit.interval.ms = 5000
auto.offset.reset = latest
bootstrap.servers = [kafka:9092]
check.crcs = true
client.dns.lookup = use_all_dns_ips
client.id = consumer-project-group-1
client.rack =
connections.max.idle.ms = 540000
default.api.timeout.ms = 60000
enable.auto.commit = false
exclude.internal.topics = true
fetch.max.bytes = 52428800
fetch.max.wait.ms = 500
fetch.min.bytes = 1
group.id = project-group
group.instance.id = null
heartbeat.interval.ms = 3000
interceptor.classes = []
internal.leave.group.on.close = true
internal.throw.on.fetch.stable.offset.unsupported = false
isolation.level = read_committed
key.deserializer = class org.apache.kafka.common.serialization.StringDeserializer
max.partition.fetch.bytes = 1048576
max.poll.interval.ms = 300000
max.poll.records = 500
metadata.max.age.ms = 300000
metric.reporters = []
metrics.num.samples = 2
metrics.recording.level = INFO
metrics.sample.window.ms = 30000
partition.assignment.strategy = [class org.apache.kafka.clients.consumer.RangeAssignor]
receive.buffer.bytes = 65536
reconnect.backoff.max.ms = 1000
reconnect.backoff.ms = 50
request.timeout.ms = 30000
retry.backoff.ms = 100
sasl.client.callback.handler.class = null
sasl.jaas.config = null
sasl.kerberos.kinit.cmd = /usr/bin/kinit
sasl.kerberos.min.time.before.relogin = 60000
sasl.kerberos.service.name = null
sasl.kerberos.ticket.renew.jitter = 0.05
sasl.kerberos.ticket.renew.window.factor = 0.8
sasl.login.callback.handler.class = null
sasl.login.class = null
sasl.login.refresh.buffer.seconds = 300
sasl.login.refresh.min.period.seconds = 60
sasl.login.refresh.window.factor = 0.8
sasl.login.refresh.window.jitter = 0.05
sasl.mechanism = GSSAPI
security.protocol = PLAINTEXT
security.providers = null
send.buffer.bytes = 131072
session.timeout.ms = 10000
socket.connection.setup.timeout.max.ms = 127000
socket.connection.setup.timeout.ms = 10000
ssl.cipher.suites = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.3]
ssl.endpoint.identification.algorithm = https
ssl.engine.factory.class = null
ssl.key.password = null
ssl.keymanager.algorithm = SunX509
ssl.keystore.certificate.chain = null
ssl.keystore.key = null
ssl.keystore.location = null
ssl.keystore.password = null
ssl.keystore.type = JKS
ssl.protocol = TLSv1.3
ssl.provider = null
ssl.secure.random.implementation = null
ssl.trustmanager.algorithm = PKIX
ssl.truststore.certificates = null
ssl.truststore.location = null
ssl.truststore.password = null
ssl.truststore.type = JKS
value.deserializer = class org.springframework.kafka.support.serializer.JsonDeserializer
2022-08-23 19:05:15.315 WARN 1 --- [ main] org.apache.kafka.clients.ClientUtils : Couldn't resolve server kafka:9092 from bootstrap.servers as DNS resolution failed for kafka
2022-08-23 19:05:15.316 INFO 1 --- [ main] org.apache.kafka.common.metrics.Metrics : Metrics scheduler closed
2022-08-23 19:05:15.316 INFO 1 --- [ main] org.apache.kafka.common.metrics.Metrics : Closing reporter org.apache.kafka.common.metrics.JmxReporter
2022-08-23 19:05:15.317 INFO 1 --- [ main] org.apache.kafka.common.metrics.Metrics : Metrics reporters closed
2022-08-23 19:05:15.319 INFO 1 --- [ main] o.a.kafka.common.utils.AppInfoParser : App info kafka.consumer for consumer-project-group-1 unregistered
2022-08-23 19:05:15.319 WARN 1 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextExcepti
on: Failed to start bean 'org.springframework.kafka.config.internalKafkaListenerEndpointRegistry'; nested exception is org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
2022-08-23 19:05:15.340 INFO 1 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2022-08-23 19:05:15.343 INFO 1 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2022-08-23 19:05:15.365 INFO 1 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2022-08-23 19:05:15.368 INFO 1 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-08-23 19:05:15.389 INFO 1 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-08-23 19:05:15.420 ERROR 1 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.context.ApplicationContextException: Failed to start bean 'org.springframework.kafka.config.internalKafkaListenerEndpointRegistry'; nested exception is org.apache.kafka.common.KafkaException: Failed to construct
kafka consumer
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:181) ~[spring-context-5.3.9.jar!/:5.3.9]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.9.jar!/:5.3.9]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.9.jar!/:5.3.9]
at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.9.jar!/:5.3.9]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.9.jar!/:5.3.9]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.9.jar!/:5.3.9]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.9.jar!/:5.3.9]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.3.jar!/:2.5.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-2.5.3.jar!/:2.5.3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) ~[spring-boot-2.5.3.jar!/:2.5.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) ~[spring-boot-2.5.3.jar!/:2.5.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-2.5.3.jar!/:2.5.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332) ~[spring-boot-2.5.3.jar!/:2.5.3]
at com.project.CQRS.ProjectServiceApplication.main(ProjectServiceApplication.java:16) ~[classes!/:1]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) ~[project-service-1.jar:1]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:108) ~[project-service-1.jar:1]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) ~[project-service-1.jar:1]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88) ~[project-service-1.jar:1]
Caused by: org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:819) ~[kafka-clients-2.7.1.jar!/:na]
at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createRawConsumer(DefaultKafkaConsumerFactory.java:366) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createKafkaConsumer(DefaultKafkaConsumerFactory.java:334) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createConsumerWithAdjustedProperties(DefaultKafkaConsumerFactory.java:310) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createKafkaConsumer(DefaultKafkaConsumerFactory.java:277) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createConsumer(DefaultKafkaConsumerFactory.java:254) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.<init>(KafkaMessageListenerContainer.java:715) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.listener.KafkaMessageListenerContainer.doStart(KafkaMessageListenerContainer.java:320) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.listener.AbstractMessageListenerContainer.start(AbstractMessageListenerContainer.java:397) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.listener.ConcurrentMessageListenerContainer.doStart(ConcurrentMessageListenerContainer.java:205) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.listener.AbstractMessageListenerContainer.start(AbstractMessageListenerContainer.java:397) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.config.KafkaListenerEndpointRegistry.startIfNecessary(KafkaListenerEndpointRegistry.java:327) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.kafka.config.KafkaListenerEndpointRegistry.start(KafkaListenerEndpointRegistry.java:272) ~[spring-kafka-2.7.4.jar!/:2.7.4]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.9.jar!/:5.3.9]
... 22 common frames omitted
Caused by: org.apache.kafka.common.config.ConfigException: No resolvable bootstrap urls given in bootstrap.servers
at org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:89) ~[kafka-clients-2.7.1.jar!/:na]
at org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:48) ~[kafka-clients-2.7.1.jar!/:na]
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:728) ~[kafka-clients-2.7.1.jar!/:na]

Answer 1

You should put project-service (and adminer, mongo, and mysql) in the same Docker Compose file as Kafka and not use docker run.
This will create a default bridge network where the containers can talk to each other.
Or you need to attach techbankNet Docker network to the Kafka service in the compose file.
https://docs.docker.com/compose/networking/
Also see Connect to Kafka running in Docker