# Build overlay. NOT loaded automatically (same convention as docker-compose.dev.yml — this
# repo deliberately never uses the auto-loaded `docker-compose.override.yml` name).
#
# Used ONLY on a workstation that builds and pushes images. Never on the production server,
# which pulls: see the note on the `app` service in docker-compose.yml.
#
# Restores the `build:` keys that production omits, so `docker compose build` still works from
# a single source of truth for the build context paths:
#
#   docker compose -f docker-compose.yml -f docker-compose.build.yml build
#
# For the actual release build use buildx directly instead — it is what produces linux/amd64
# images from an arm64 Mac and pushes them in one step (see DEPLOYMENT_RUNBOOK.md §6):
#
#   docker buildx build --platform linux/amd64 -t registry.mc02.dev/eventsnap/app:vX.Y.Z --push ./backend
services:
  app:
    build:
      context: ./backend
      dockerfile: Dockerfile
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile