Share a Docker Compose logging config across multiple services with YAML anchors

domain: docker · 4 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. Define the shared config once at top level: `x-logging: &logcfg {driver: json-file, options: {max-size: "10m"}}`.
  2. Reference on each service: `logging: *logcfg`.
  3. Override per-service by defining a different logging block on a specific service.
  4. Validate with `docker compose config` to catch anchor expansion errors.

Known gotchas

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