docker-impl-compose-workflows

Quick Reference

Compose File Search Order

Compose searches for files in this order:

1. compose.yaml (preferred)
2. compose.yml
3. docker-compose.yaml
4. docker-compose.yml

ALWAYS use compose.yaml for new projects. The docker-compose.* names exist only for backward compatibility.

NEVER include a version: field. It is deprecated and ignored by modern Compose.

Environment Variable Precedence (Highest to Lowest)

| Priority | Source | Example |