Add platform to clamav

[patrick91]

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Project	Deployment	Actions	Updated (UTC)
pycon	Ready	Preview	Feb 5, 2026 4:54pm

[claude]

Summary

This PR adds an explicit platform specification (linux/amd64) to the ClamAV service in docker-compose.yml. This change ensures consistent behavior across different architectures (particularly important for Apple Silicon/ARM Macs) by forcing the use of the AMD64 image.

Review

Architecture & Design ✅

Approved - This is a minimal, targeted change that addresses a specific compatibility issue.

• The change follows Docker Compose best practices for multi-architecture support
• Does not introduce any coupling or architectural concerns
• Appropriately scoped to only affect the ClamAV service

Why This Change Matters

Adding platform: linux/amd64 is beneficial because:

1. Consistency: Ensures all developers use the same architecture regardless of their host machine
2. Compatibility: The ClamAV 1.2.3-47 image may have better support or be officially tested on AMD64
3. Reproducibility: Prevents architecture-related bugs from surfacing differently across team members' machines

Considerations

Performance trade-off: On ARM machines (Apple Silicon), this forces emulation via Rosetta/QEMU, which can be slower than native ARM images. However, for a background service like ClamAV that's used for file scanning, this trade-off is reasonable if:

• ARM images are unavailable or unstable for this version
• The team prioritizes consistency over performance for dev environments

Recommendation

LGTM ✅

This is a safe, reasonable change for local development. The benefits of consistency outweigh the minor performance cost on ARM machines.

Optional enhancement: Consider adding a comment in the docker-compose.yml explaining why this platform constraint exists, for future maintainers:

clamav:
  image: clamav/clamav:1.2.3-47
  platform: linux/amd64  # Force AMD64 for consistency across architectures
  networks: [pycon_net]
  restart: unless-stopped