infra: Add HEALTHCHECK to Windows Dockerfile

[YaronZaki]

Problem Statement

quantara/Dockerfile.windows is missing a HEALTHCHECK instruction. The standard quantara/Dockerfile:37 has a proper HEALTHCHECK, but the Windows variant was apparently copied from an earlier version and lacks this instruction.

Evidence

# quantara/Dockerfile:37 — has HEALTHCHECK
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# quantara/Dockerfile.windows — no HEALTHCHECK at all

Impact

Low — monitoring gap on Windows. Windows container doesn't report health status. Container orchestration (Docker, Kubernetes) can't detect when the Windows container is unhealthy. Docker Compose depends_on: condition: service_healthy won't work for the Windows service.

Proposed Solution

Add identical HEALTHCHECK instruction to Dockerfile.windows. The Windows Dockerfile already installs curl (via apt-get), so the same curl-based health check command will work.

Acceptance Criteria

• HEALTHCHECK instruction added to Dockerfile.windows matching Dockerfile
• Same interval, timeout, retries, and start period as standard Dockerfile
• Uses same curl -f http://localhost:8000/health command
• Docker compose health check dependency works for Windows service

File Map

• quantara/Dockerfile.windows — add HEALTHCHECK instruction

Testing Strategy

• Integration: Build Windows Docker image, run container, verify docker ps shows healthy status after start period.

Security Considerations

No security impact. Parity improvement.

Definition of Done

• Code implemented and peer-reviewed
• Dockerfile verified
• PR linked and merged

---

Labels: infrastructure
Priority: Low
Difficulty: Beginner
Estimated Effort: 0.5h

[portableDD]

Can i work on this?

[grantfox-oss]

🦊 GrantFox — @portableDD has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #90)
2. Your PR will be reviewed by the Quantarq maintainers

Good luck! Track your progress on GrantFox.