docker-compose.yml

version: '3.8'

services:
  # 1. MySQL Databas-tjänst
  db:
    image: mysql:8.0
    container_name: mysql_db
    environment:
      # MySQL initialiseringsvariabler
      MYSQL_ROOT_PASSWORD: root_secure_password
      MYSQL_DATABASE: habit_tracker
      MYSQL_USER: ${DB_USERNAME}
      MYSQL_PASSWORD: ${DB_PASSWORD}
    ports:
      - "3307:3306"
    volumes:
      - db-data:/var/lib/mysql

  # 2. Java Applikationstjänst
  habit-app:
    # Bygger appen baserat på den Dockerfile vi nyss skapade
    build:
      context: .
      dockerfile: Dockerfile
    container_name: habit_tracker_app
    ports:
      - "8080:8080"
    depends_on:
      - db
    environment:
      # Miljövariabler som Spring Boot läser från application.properties
      SPRING_DATASOURCE_URL: jdbc:mysql://db:3306/habit_tracker?serverTimezone=UTC
      SPRING_DATASOURCE_USERNAME: ${DB_USERNAME}
      SPRING_DATASOURCE_PASSWORD: ${DB_PASSWORD}

volumes:
  db-data: