docker-compose.yaml

version: "3.9"

services:
  app:
    build: .
    image: linkshortener:latest
    ports:
      - "8080:8080"
    env_file: .env
    environment:
      SPRING_PROFILES_ACTIVE: prod
      DB_HOST: db
      DB_PORT: "5432"
      DB_NAME: url_shortener
      SPRING_DATASOURCE_USERNAME: ${DB_USERNAME_PROD:-url_user}
      SPRING_DATASOURCE_PASSWORD: ${DB_PASSWORD_PROD:-url_pass}
    depends_on:
      db:
        condition: service_healthy

  db:
    image: postgres:16-alpine
    container_name: linkshortener-db
    environment:
      POSTGRES_DB: url_shortener         # must exist to avoid "database 'url_user' does not exist"
      POSTGRES_USER: ${DB_USERNAME_PROD:-url_user}
      POSTGRES_PASSWORD: ${DB_PASSWORD_PROD:-url_pass}
    ports:
      - "5432:5432"
    volumes:
      - pgdata:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USERNAME_PROD:-url_user} -d url_shortener"]
      interval: 5s
      timeout: 5s
      retries: 10

volumes:
  pgdata: