Recommended Docker Compose service field-order

Recommended sequence (most common in official Compose examples and production teams):

1. image / build → What the service is
2. command → How it runs (if overridden)
3. ports → External access (if any)
4. volumes → Data persistence
5. environment → Configuration
6. depends_on / links / networks → Dependencies and networking
7. healthcheck → Readiness/liveness probes
8. restart → Restart policy (if used)