Connection Refused when initializing Hibernate with MySQL in docker-compose
I have a docker-compose for a SpringBoot application with Hibernate and MySQL 8 server. But whenever my MySQL server and SpringBoot application are being brought up by docker-compose, I get:
HHH000342: Could not obtain connection to query metadata : Communications link failure
...
Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]:
Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
...
Caused by: java.net.ConnectException: Connection refused
And here is my docker-compose.yaml:
version: '3'
services:
my-account-microservice-db:
container_name: my-account-microservice-db
volumes:
- /Users/syu/Desktop/my-mysql/storage/my-account-microservice-db:/var/lib/mysql
image: mysql:8.0.19
environment:
MYSQL_ROOT_PASSWORD: password
MYSQL_DATABASE: my-account
ports:
- "3307:3306"
networks:
- my-network
my-account-microservice:
container_name: my-account-microservice
image: my-account-microservice
build:
context: ./account-microservice
environment:
SPRING_DATASOURCE_URL: jdbc:mysql://my-account-microservice-db:3307/my-account
SPRING_DATASOURCE_USERNAME: root
SPRING_DATASOURCE_PASSWORD: password
SPRING_DATASOURCE_DRIVER-CLASS-NAME: com.mysql.cj.jdbc.Driver
# SPRING.DATASOURCE.URL: jdbc:mysql://my-account-microservice-db:3307/my-account
# SPRING.DATASOURCE.USERNAME: root
# SPRING.DATASOURCE.PASSWORD: password
# SPRING.DATASOURCE.DRIVER-CLASS-NAME: com.mysql.cj.jdbc.Driver
# DATABASE_HOST: my-account-microservice-db
# DATABASE_USER: root
# DATABASE_PASSWORD: password
# DATABASE_PORT: 3307
depends_on:
- my-account-microservice-db
ports:
- "8090:8090"
networks:
- my-network
# links:
# - my-account-microservice-db:database
networks:
my-network:
And my application.properties:
spring.application.name=account-microservice
server.port=8090
# ==============================================================
# = Data Source
# ==============================================================
# ******** Will probably put this on a central config server? would that work?
spring.datasource.url = jdbc:mysql://localhost:3307/my-account
spring.datasource.username = root
spring.datasource.password = password
spring.datasource.driver-class-name = com.mysql.cj.jdbc.Driver
# ==============================================================
# = Show or not log for each sql query
# ==============================================================
spring.jpa.show-sql = true
# ==============================================================
# = Keep the connection alive if idle for a long time (needed in production)
# ==============================================================
spring.datasource.testWhileIdle = true
spring.datasource.validationQuery = SELECT 1
# ==============================================================
# = Hibernate ddl auto (create, create-drop, update)
# = The SQL dialect makes Hibernate generate better SQL for the chosen database
# ==============================================================
spring.jpa.database-platform = org.hibernate.dialect.MySQL5Dialect
spring.jpa.generate-ddl = true
spring.jpa.hibernate.ddl-auto = update
I have verified the following things:
- MySQL is up before the SpringBoot application is up
- Tried using -links, but didn’t work
- Nothing is using port 3307
- I am able to connect to localhost:3307 with
/bin/mysql -h0.0.0.0 -uroot -ppassword
perfectly fine - Having them on the same network
- Restarting Docker
- Make sure root user has privilege by running
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'
on the server - Running with individual DockerFiles
- Having correct mysql connector and Hibernate dependencies
But all the things I have tried above did not work.
*The weird thing is though, my SpringBoot application is able to connect to the mysql database if I just start the app by itself without using Docker (just using IntelliJ’s SpringBoot config)
I have no idea what I am doing wrong. Please help ^
Source: StackOverflow