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backend
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README.md
README.md
 
 
compose.yaml
compose.yaml
 
 
output.jpg
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README.md

Compose sample application

React application with a Spring backend and a MySQL database

Project structure:

.
├── backend
│   ├── Dockerfile
│   ...
├── db
│   └── password.txt
├── compose.yaml
├── frontend
│   ├── ...
│   └── Dockerfile
└── README.md

compose.yaml

services:
  backend:
    build: backend
    ...
  db:
    # We use a mariadb image which supports both amd64 & arm64 architecture
    image: mariadb:10.6.4-focal
    # If you really want to use MySQL, uncomment the following line
    #image: mysql:8.0.27
    ...
  frontend:
    build: frontend
    ports:
    - 3000:3000
    ...

The compose file defines an application with three services frontend, backend and db. When deploying the application, docker compose maps port 3000 of the frontend service container to port 3000 of the host as specified in the file. Make sure port 3000 on the host is not already being in use.

ℹ️ INFO For compatibility purpose between AMD64 and ARM64 architecture, we use a MariaDB as database instead of MySQL. You still can use the MySQL image by uncommenting the following line in the Compose file #image: mysql:8.0.27

Deploy with docker compose

$ docker compose up -d
Creating network "react-java-mysql-default" with the default driver
Building backend
Step 1/17 : FROM maven:3.6.3-jdk-11 AS builder
...
Successfully tagged react-java-mysql_frontend:latest
WARNING: Image for service frontend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
Creating react-java-mysql-frontend-1 ... done
Creating react-java-mysql-db-1       ... done
Creating react-java-mysql-backend-1  ... done

Expected result

Listing containers must show three containers running and the port mapping as below:

$ docker ps
ONTAINER ID        IMAGE                       COMMAND                  CREATED             STATUS              PORTS                  NAMES
a63dee74d79e        react-java-mysql-backend    "java -Djava.securit…"   39 seconds ago      Up 37 seconds                              react-java-mysql_backend-1
6a7364c0812e        react-java-mysql-frontend   "docker-entrypoint.s…"   39 seconds ago      Up 33 seconds       0.0.0.0:3000->3000/tcp react-java-mysql_frontend-1
b176b18fbec4        mysql:8.0.19                "docker-entrypoint.s…"   39 seconds ago      Up 37 seconds       3306/tcp, 33060/tcp    react-java-mysql_db-1

After the application starts, navigate to http://localhost:3000 in your web browser to get a colorful message. page

Stop and remove the containers

$ docker compose down
Stopping react-java-mysql-backend-1  ... done
Stopping react-java-mysql-frontend-1 ... done
Stopping react-java-mysql-db-1       ... done
Removing react-java-mysql-backend-1  ... done
Removing react-java-mysql-frontend-1 ... done
Removing react-java-mysql-db-1       ... done
Removing network react-java-mysql-default