Docker-compose a SpringBoot + MySQL application

2 min readJun 4, 2021

The main crux of Docker container is that every process is a container and we have multiple containers connected to each other to give an overall app experience.

Now, managing individual images and containers can be a tedious process, therefore we have Docker-compose to compose an entire application.

In my earlier post, I explained on how to run a stand alone Spring Boot application. Here, we will connect the same Spring Boot application to MySQL having Docker as our infrastructure.

The two containers connect with each other via docker network.

Docker-compose helps in establishing this entire infrastructure via a single docker-compose.yml file-

version: "3.7"services: mysql-service:
    image: mysql:5.7
    networks:
       - spring-boot-mysql-network
    restart: always
    environment:
       - MYSQL_ROOT_PASSWORD=ronnie01
       - MYSQL_DATABASE=testapp web-service:
   build:
     context: ./
     dockerfile: Dockerfile
 
   ports:
     - "8080:8080"
   networks:
      - spring-boot-mysql-network
   depends_on:
      - mysql-service networks:
    spring-boot-mysql-network:
    driver: bridge

Please refer my previous article, on how you can Dockerize a Spring Boot Application.

Here, we first create a MySQL service from a MySQL image and provide it’s user name and password.

Once, we do that we define the Spring Boot Application as web-service and the docker-file from which this container needs to be created in referenced in the file.

Following will be project structure