I revised an example of Spring Boot Microservices and I have a problem about running all services on docker.
After creating the image file of each services, I devised a docker-compose.yml to run all services on Docker. I noticed some of services throw ConnectException regarding configserver but I have no idea how to fix it. Here are the code snippets to create Docker image for each service.
1 ) service-registry
- mvn clean install
- docker build -t microservicedailybuffer/serviceregistry:0.0.1 .
2 ) configserver
- mvn clean install
- docker build -t microservicedailybuffer/configserver:0.0.1 .
3 ) apigateway
- mvn clean install -D skipTests
- docker build -t microservicedailybuffer/apigateway:0.0.1 .
4 ) auth-service
- mvn clean install -D skipTests
- docker build -t microservicedailybuffer/authservice:0.0.1 .
5 ) orderservice
- mvn clean install -D skipTests
- docker build -t microservicedailybuffer/orderservice:0.0.1 .
6 ) productservice
- mvn clean install -D skipTests
- docker build -t microservicedailybuffer/productservice:0.0.1 .
7 ) paymentservice
- mvn clean install -D skipTests
- docker build -t microservicedailybuffer/paymentservice:0.0.1 .
Here is my docker-compose.yml
shown below
services:
serviceregistry:
image: 'microservicedailybuffer/serviceregistry:0.0.1'
container_name: serviceregistry
ports:
- '8761:8761'
networks:
- backend
configserver:
image: 'microservicedailybuffer/configserver:0.0.1'
container_name: configserver
ports:
- '9296:9296'
environment:
- EUREKA_SERVER_ADDRESS=http://serviceregistry:8761/eureka
healthcheck:
test: [ "CMD", "curl", "-f", "http://configserver:9296/actuator/health" ]
interval: 10s
timeout: 5s
retries: 5
depends_on:
- serviceregistry
networks:
- backend
apigateway:
image: 'microservicedailybuffer/apigateway:0.0.1'
container_name: apigateway
ports:
- '9090:9090'
environment:
- EUREKA_SERVER_ADDRESS=http://serviceregistry:8761/eureka
- CONFIG_SERVER_URL=configserver
- ZIPKIN_URL=http://zipkin:9411
- REDIS_URL=redis://redis:6379
depends_on:
- configserver
- zipkin
- redis
- serviceregistry
networks:
- backend
zipkin:
image: openzipkin/zipkin
ports:
- "9411:9411"
networks:
- backend
redis:
image: redis
ports:
- "6379:6379"
networks:
- backend
authservice:
image: 'microservicedailybuffer/authservice:0.0.1'
container_name: authservice
ports:
- '7777:7777'
environment:
- EUREKA_SERVER_ADDRESS=http://serviceregistry:8761/eureka
- CONFIG_SERVER_URL=configserver
- spring.datasource.url=jdbc:mysql://database:3306/userdb?createDatabaseIfNotExist=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Turkey
- spring.datasource.username=root
- spring.datasource.password=ippavlova_1990
depends_on:
database:
condition: service_healthy
configserver:
condition: service_started
networks:
- backend
productservice:
image: 'microservicedailybuffer/productservice:0.0.1'
container_name: productservice
ports:
- '8081:8081'
environment:
- EUREKA_SERVER_ADDRESS=http://serviceregistry:8761/eureka
- CONFIG_SERVER_URL=configserver
- spring.datasource.url=jdbc:mysql://database:3306/productdb?createDatabaseIfNotExist=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Turkey
- spring.datasource.username=root
- spring.datasource.password=ippavlova_1990
- ZIPKIN_URL=http://zipkin:9411
depends_on:
database:
condition: service_healthy
configserver:
condition: service_started
zipkin:
condition: service_healthy
networks:
- backend
orderservice:
image: 'microservicedailybuffer/orderservice:0.0.1'
container_name: orderservice
ports:
- '8082:8082'
environment:
- EUREKA_SERVER_ADDRESS=http://serviceregistry:8761/eureka
- CONFIG_SERVER_URL=configserver
- spring.datasource.url=jdbc:mysql://database:3306/orderdb?createDatabaseIfNotExist=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Turkey
- spring.datasource.username=root
- spring.datasource.password=ippavlova_1990
- ZIPKIN_URL=http://zipkin:9411
depends_on:
database:
condition: service_healthy
configserver:
condition: service_started
zipkin:
condition: service_healthy
networks:
- backend
paymentservice:
image: 'microservicedailybuffer/paymentservice:0.0.1'
container_name: paymentservice
ports:
- '8083:8083'
environment:
- EUREKA_SERVER_ADDRESS=http://serviceregistry:8761/eureka
- CONFIG_SERVER_URL=configserver
- spring.datasource.url=jdbc:mysql://database:3306/paymentdb?createDatabaseIfNotExist=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Turkey
- spring.datasource.username=root
- spring.datasource.password=ippavlova_1990
- ZIPKIN_URL=http://zipkin:9411
depends_on:
database:
condition: service_healthy
configserver:
condition: service_started
zipkin:
condition: service_healthy
networks:
- backend
database:
container_name: mysql-database
image: 'mysql:latest'
ports:
- "3306:3306"
restart: always
environment:
#MYSQL_USER: root
MYSQL_PASSWORD: ippavlova_1990
MYSQL_ROOT_PASSWORD: ippavlova_1990
volumes:
- db-data:/var/lib/mysql
networks:
- backend
healthcheck:
test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
timeout: 20s
retries: 10
networks:
backend:
driver: bridge
volumes:
db-data:
When I run the docker-compose file through docker-compose up, I get some problems in api gateway.
Api Gateway Issue
Caused by: org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://configserver:9296/API-GATEWAY/default": Connection refused (Connection refused); nested exception is java.net.ConnectException: Connection refused (Connection refused)
How can I fix all these issue?
Here is the repo : Link
Here is the git based system file : Link
2
Answers
After revising the api gateway shown below, the issue disappeared.
You have to update your
application.yml
anddocker-compose.yml
files.These lines should be present to override the
EUREKA_SERVER_ADDRESS
and to communicate within the container you need to use a common network.
So it should look like this.