عرض عملي: بيئة Shop كاملة بأمر واحد

خطوة بخطوة

1. Write compose.yaml with db, keycloak, and app.
2. Add health checks for db and keycloak; use service_healthy conditions.
3. Move passwords to .env; commit .env.example; add .env to .gitignore.
4. Mount seed SQL into the database init folder (/docker-entrypoint-initdb.d) and run docker compose up.
5. Planned mistake: depends_on without health checks, so the app crashes with "connection refused"; fix with condition: service_healthy.
6. Write the README steps and have a partner follow them.