I have discovery service: https://github.com/Naresh-Chaurasia/API-MicroServices-Kafka/tree/master/Microservices-CQRS-SAGA-Kafka/DiscoveryService
I have product service: https://github.com/Naresh-Chaurasia/API-MicroServices-Kafka/tree/master/Microservices-CQRS-SAGA-Kafka/ProductsService
Following is my docker-compose.yml file: https://github.com/Naresh-Chaurasia/API-MicroServices-Kafka/tree/master/Microservices-CQRS-SAGA-Kafka/docker-compose.yml
version: "3.8"
services:
axon-server:
image: axoniq/axonserver
container_name: axon-server
ports:
- 8124:8124
- 8024:8024
networks:
- axon-demo
discovery-service:
build:
context: ./DiscoveryService
container_name: discovery-service
ports:
- 8010:8010
networks:
- axon-demo
networks:
axon-demo:
driver: bridge
When i run the following command docker-compose up, I get axon-server and discovery-service running.
I now run ProductService using the following file src/main/java/com/appsdeveloperblog/estore/ProductsService/ProductsServiceApplication.java which is under https://github.com/Naresh-Chaurasia/API-MicroServices-Kafka/tree/master/Microservices-CQRS-SAGA-Kafka/ProductsService.
It works fine.
The problem start when I try to run ProductService as a microservice, and it fails to connect to axon server. To do that I modify the docker-compose.yml as follows:
version: "3.8"
services:
axon-server:
image: axoniq/axonserver
container_name: axon-server
ports:
- 8124:8124
- 8024:8024
networks:
- axon-demo
discovery-service:
build:
context: ./DiscoveryService
container_name: discovery-service
ports:
- 8010:8010
networks:
- axon-demo
product-service:
build:
context: ./ProductsService
ports:
- 8090:8090
depends_on:
- axon-server
- discovery-service
networks:
- axon-demo
networks:
axon-demo:
driver: bridge
Now if I try to run docker-compose up, I get the following error:
product-service_1 | 2021-08-20 03:06:27.973 INFO 1 --- [#29db04f6c0a4-0] i.a.a.c.impl.AxonServerManagedChannel : Requesting connection details from localhost:8124
product-service_1 | 2021-08-20 03:06:30.004 WARN 1 --- [#29db04f6c0a4-0] i.a.a.c.impl.AxonServerManagedChannel : Connecting to AxonServer node [localhost:8124] failed: UNAVAILABLE: io exception
I have gone through the following link, Spring Boot Microservices are unable to connect to Axon Server, which looks like similar problem but still not able to fix my problem.
Please guide.
Thanks.
I made the following changes and it works fine now.
In the file ProductsService\src\main\resources\application.properties
Old Entry: eureka.client.serviceUrl.defaultZone = http://localhost:8010/eureka
New Entry: eureka.client.serviceUrl.defaultZone = http://discovery-service:8010/eureka
Added the following line in the above file: axon.axonserver.servers=axon-server:8124
In the File: Microservices-CQRS-SAGA-Kafka\docker-compose.yml
Old Entry: version: "3.8"
New Entry: version: "2"
Added following code in yml file
product-service:
build:
context: ./ProductsService
ports:
- 8090:8090
networks:
- axon-demo
I have also checked in the code in git. The micro services can talk to each other, and connect to axon server and the problem reported earlier is resolved.
Thanks.
Just a thought.
Try to add to each service in application.properties
axon.axonserver.servers=localhost:8124
and to each service which connects to axon-server in docker-compose.yml
in environment variables section
axon-server:
image: axoniq/axonserver
container_name: axon-server
ports:
- 8124:8124
- 8024:8024
product-service:
...
environment:
AXON_AXONSERVER_SERVERS: axon:8124
Related
I just encountered a problem. I am dockerizing a springboot application with MySQL as a database it is perfectly working in a local setup. But when I try to dockerize the application using docker-compose, MySQL container is working fine and is accessible in my workbench but my application is not able to access it throwing the communication link failure.
This is the compose file I am using:
version: "3.8"
services:
mysqldb:
image: mysql:5.7
restart:unless-stopped
environment:
- MYSQL_ROOT_PASSWORD=root
- MYSQL_DATABASE=baskartest
ports:
- 3307:3306
volumes:
- db:/var/lib/mysql
app:
depends_on:
- mysqldb
build: ./bezkoder-app
restart:on-failure
env_file: ./.env
ports:
- 8084:8080
environment:
SPRING_APPLICATION_JSON: '{
"spring.datasource.url" : "jdbc:mysql://mysqldb:3306/baskartest?useSSL=false",
"spring.datasource.username" : "root",
"spring.datasource.password" : "root",
"spring.jpa.properties.hibernate.dialect" : "org.hibernate.dialect.MySQL5InnoDBDialect",
"spring.jpa.hibernate.ddl-auto" : "update"
}'
volumes:
- .m2:/root/.m2
stdin_open: true
tty: true
MySQL is working fine but my app in services is not able to communicate with it.
Here is what I see:
Any help would be appreciated!
I have done small changes in docker-compose.yml file, please use this one. It is working fine.
version: "3.8"
services:
mysqldb:
image: mysql:5.7
container_name: MYSQL_DB
restart: unless-stopped
environment:
- MYSQL_ROOT_PASSWORD=root
- MYSQL_DATABASE=baskartest
ports:
- 3307:3306
app:
build: ./bezkoder-app
restart: on-failure
ports:
- 8084:8080
environment:
- SPRING_DATASOURCE_URL=jdbc:mysql://MYSQL_DB:3306/baskartest
- SPRING_DATASOURCE_USERNAME=root
- SPRING_DATASOURCE_PASSWORD=root
- SPRING_JPA_HIBERNATE_DDL_AUTO=update
depends_on:
- mysqldb
In my short experience with Docker and containers communicating with eachother, I've found that localhost configuration URL's aren't working. Because one container can't communicatie with another container using just localhost:[PORT].
A lazy way for me to fix this is to work out a static IP address of the machine the containers are running on. Then use this (local) IP address instead of localhost to define the endpoint of the database.
In my situation with Redis I'm doing it like this:
return new LettuceConnectionFactory(new RedisStandaloneConfiguration("192.168.1.201", 6379));
In your situation, you might want to use a Datasource URL like this:
- SPRING_DATASOURCE_URL=jdbc:mysql://[STATIC_IP_OF_MACHINE]:3306/baskartest
*i.e. ...192.168.1.100:3306/baskartest...*
I have a problem about running docker-compose.yml in my Spring Boot app.
When I run this command (docker-compose up -d), I got an issue in image part.
I tried to handle with solving this issue but I couldn't do that.
How can I fix it?
Here is my issue shown below.
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
Here is my project : My Project
Here is my docker-compose.yml shown below.
version: '3.8'
services:
logstash:
image: docker.elastic.co/logstash/logstash:7.15.2
user: root
command: -f /etc/logstash/conf.d/
volumes:
- ./logstash/:/etc/logstash/conf.d/
ports:
- "5000:5000"
environment:
LS_JAVA_OPTS: "-Xmx256m -Xms256m"
depends_on:
- elasticsearch
kibana:
image: docker.elastic.co/kibana/kibana:7.15.2
user: root
volumes:
- ./kibana/:/usr/share/kibana/config/
ports:
- "5601:5601"
depends_on:
- elasticsearch
entrypoint: ["./bin/kibana", "--allow-root"]
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:7.15.2
user: root
volumes:
- ./elasticsearch/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml
ports:
- "9200:9200"
- "9300:9300"
environment:
ES_JAVA_OPTS: "-Xmx256m -Xms256m"
app:
image: 'springbootelk:latest'
build:
context: .
container_name: SpringBootElk
depends_on:
- db
- logstash
ports:
- '8077:8077'
environment:
- SPRING_DATASOURCE_URL=jdbc:mysql://db:3306/springbootexample?useSSL=false&serverTimezone=Turkey
- SPRING_DATASOURCE_USERNAME=springexample
- SPRING_DATASOURCE_PASSWORD=111111
- SPRING_JPA_HIBERNATE_DDL_AUTO=update
db:
container_name: mysql-latest
image: 'mysql:latest'
ports:
- "3306:3306"
restart: always
environment:
MYSQL_DATABASE: ${MYSQL_DATABASE}
MYSQL_USER: ${MYSQL_USER}
MYSQL_PASSWORD: ${MYSQL_PASSWORD}
MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
volumes:
- db-data:/var/lib/mysql
# Volumes
volumes:
db-data:
There are several issues, why it doesn't work.
First thing - your tests aren't set up properly. Application tries to connect to database in the test stage. But during the test stage there is no any running containers yet. You can set it up properly, or remove MainApplicationTests class from the test directory, or by switching off your tests execution, just by adding -Dmaven.test.skip in Dockerfile for the mvnw package command. After it your image will build properly.
Second thing, you need to allow public key retrieval for your application. To do that, you can add allowPublicKeyRetrieval=true to your jdbc url. You can read more about it here: Connection Java - MySQL : Public Key Retrieval is not allowed.
These steps will allow your application to start (at least it will resolve database connectivity problems). But, I have found another issue. You set in your application configuration context-path equal to /api. Also you added #RequestMapping("/api") for your PersonController. And to access the list of persons, you will need to use the following url: http://localhost:8077/api/api/persons. Probably, it is not what you wanted. To fix it, you can remove it from any place.
I have a docker-compose file with Kafka, zookeeper, and spring boot application.
while I run the entire file everything works fine.
when I run it without my spring boot application in order to debug it via intellij It cannot connect to Kafka and doesn't work properly.
my docker-compose file:
version: "3.5" services: # Install Zookeeper. zookeeper:
container_name: zookeeper
image: debezium/zookeeper:1.2
networks:
- mynetwork
ports:
- 2181:2181
- 2888:2888
- 3888:3888 # Install Kafka. kafka:
container_name: kafka
image: debezium/kafka:1.2
depends_on:
- zookeeper
ports:
- 9092:9092
- 29092:29092
networks:
- mynetwork
extra_hosts:
- "host.docker.internal:host-gateway"
environment:
- ZOOKEEPER_CONNECT=zookeeper:2181
- KAFKA_LISTENER_SECURITY_PROTOCOL_MAP= INTERNAL:PLAINTEXT,PLAINTEXT:PLAINTEXT,EXTERNAL_SAME_HOST:PLAINTEXT
- KAFKA_ADVERTISED_LISTENERS= INTERNAL://kafka:9092,EXTERNAL_SAME_HOST://localhost:29092
- KAFKA_LISTENERS= EXTERNAL_SAME_HOST://:29092,INTERNAL://:9092
- KAFKA_INTER_BROKER_LISTENER_NAME= PLAINTEXT # Install Postgres. postgres:
container_name: postgres
image: debezium/postgres:12
volumes:
- ./sql/init.sql:/docker-entrypoint-initdb.d/init.sql
ports:
- 5432:5432
networks:
- mynetwork
environment:
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
- POSTGRES_DB=postgres kafka-ui:
container_name: kafka-ui
image: provectuslabs/kafka-ui:0.2.1
ports:
- 8080:8080
networks:
- mynetwork
environment:
- KAFKA_CLUSTERS_0_NAME=local
- KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9092 #Deploy a Consumer. consumer:
build:
context: .
container_name: pledge-consumer
environment:
- SPRING_DATASOURCE_URL=jdbc:postgresql://postgres:5432/postgres
ports:
- 8101:8080
networks:
- mynetwork
image: isber/ssm-pledgeservice:v1
depends_on:
- zookeeper
- kafka
- postgres
networks: mynetwork:
external: true
In the application I tried:
spring.kafka.bootstrap-servers=kafka:9092
which works when I run it via docker but not from intellij
I also tried when running with intellij:
spring.kafka.bootstrap-servers=localhost:9092
spring.kafka.bootstrap-servers=localhost:29092
I found the problem, the image I used:
image: debezium/kafka:1.2
had a problem and it didn't read any of the parameters of the environment I added.
I upgraded to:
image: debezium/kafka:1.4
everything works.
I have a Spring Boot microservices project with three microservices to test saga pattern for distributed transactions management.
When I run Axon Server locally with java -jar axonserver.jar and spring boot microservices with mvn spring-boot:run, everything is ok and I can see all microservices in Axon Server dashboard.
I have added Docker file for microservices and a docker-compose.yml into project to run the whole project with docker-compose. Here is my docker-compose.yml file:
version: '3.8'
services:
axonserver:
image: axoniq/axonserver
hostname: axonserver
container_name: axonserver
volumes:
- type: bind
source: ./data
target: /data
- type: bind
source: ./events
target: /eventdata
- type: bind
source: ./config
target: /config
read_only: true
ports:
- '8024:8024'
- '8124:8124'
- '8224:8224'
networks:
- axon-demo
order-service:
container_name: "order-service"
build:
context: ./order-service
ports:
- "8080:8080"
depends_on:
- axonserver
networks:
- axon-demo
payment-service:
container_name: "payment-service"
build:
context: ./payment-service
ports:
- "8081:8081"
depends_on:
- axonserver
networks:
- axon-demo
shipping-service:
container_name: "shipping-service"
build:
context: ./shipping-service
ports:
- "8082:8082"
depends_on:
- axonserver
networks:
- axon-demo
networks:
axon-demo:
driver: bridge
I also added axon-server to application.properties of all microservices as below:
axon.axonserver.servers=axonserver:8124
After running docker-compose up --build command, microservices are unable to connect to the Axon server and I get this error:
order-service | 2021-07-10 15:01:01.199 WARN 1 --- [rverConnector-0] o.a.a.c.AxonServerConnectionManager : Connecting to AxonServer node localhost:8124 failed: UNAVAILABLE: io exception
My question is why microservices are looking for axon server in localhost:8124 that is obviously wrong and is against their configurations in application.properties:
axon.axonserver.servers=axonserver:8124
Here axonserver is the container name of Axon server.
As discussed in the comments, the problem is on your Dockerfile where you are overriding the spring.config.location. By removing that from the Dockerfile, the problem should is fixed.
Your properties file contains the following:
axon.axonserver.servers=${AXONSERVER_HOST:axonserver:8124}
Please try it without the ":8124":
axon.axonserver.servers=${AXONSERVER_HOST:axonserver}
I think Spring boot is confused by the double ":". Port 8124 is the default for Axon Server connections, so you can leave it out without problems.
I am attempting to host a Spring Cloud application in Docker containers.The underlying exception is as follows:
search_1 | Caused by: java.lang.IllegalStateException: Invalid URL: config:8888
I understand the reason is because of the URL specified in my config server.
spring.application.name=inventory-client
#spring.cloud.config.uri=http://localhost:8888
spring.cloud.config.uri=config:8888
On my development machine, I am able to use localhost. However, based on a past question (relating to connecting to my database), I learned that localhost is not appropriate in containers. For my database, I was able to use the following:
spring.jpa.hibernate.ddl-auto=none
spring.jpa.show-sql=false
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
spring.datasource.url=jdbc:postgresql://db:5432/leisurely_diversion
#spring.datasource.url=jdbc:postgresql://localhost:5000/leisurely_diversion
spring.datasource.driver-class-name=org.postgresql.Driver
but this obviously did not work as expected for the configuration server.
My docker-compose file:
# Use postgres/example user/password credentials
version: '3.2'
services:
db:
image: postgres
ports:
- 5000:5432
environment:
POSTGRES_PASSWORD: example
volumes:
- type: volume
source: psql_data
target: /var/lib/postgresql/data
networks:
- app
restart: always
config:
image: kellymarchewa/config_server
networks:
- app
volumes:
- /root/.ssh:/root/.ssh
restart: always
search:
image: kellymarchewa/search_api
networks:
- app
restart: always
ports:
- 8082:8082
depends_on:
- db
- config
- inventory
inventory:
image: kellymarchewa/inventory_api
depends_on:
- db
- config
ports:
- 8081:8081
networks:
- app
restart: always
volumes:
psql_data:
networks:
app:
Both services are running under the same user defined network; how I allow the services to find the configuration service?
Thanks.