Docker Compose for Local Dev Stack

services:
  app:
    build: .
    ports: ["8000:8000"]
    environment:
      DATABASE_URL: postgres://dev:dev@db:5432/dev
      REDIS_URL: redis://cache:6379/0
    depends_on: [db, cache]
  db:
    image: postgres:16-alpine
    environment: { POSTGRES_USER: dev, POSTGRES_PASSWORD: dev, POSTGRES_DB: dev }
    volumes: [pgdata:/var/lib/postgresql/data]
  cache:
    image: redis:7-alpine
  mail:
    image: mailhog/mailhog
    ports: ["8025:8025"]
volumes:
  pgdata: