docker-compose.yml

services:
  postgres:
    image: postgres:16-alpine
    environment:
      POSTGRES_DB: omni_arena
      POSTGRES_USER: omni_arena
      POSTGRES_PASSWORD: omni_arena
    ports:
      - "5432:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U omni_arena -d omni_arena"]
      interval: 2s
      timeout: 3s
      retries: 15
    volumes:
      - omni_arena_postgres:/var/lib/postgresql/data

  # Single-tenant app: Fastify API + the built web UI in one container. On start
  # it runs migrations, seeds the lineup, then serves both on one port. Provider
  # keys and secrets come from .env; DATABASE_URL is overridden to reach the
  # postgres service by its compose hostname (the .env value targets localhost
  # for the npm dev path).
  app:
    build: .
    depends_on:
      postgres:
        condition: service_healthy
    env_file: .env
    environment:
      DATABASE_URL: postgres://omni_arena:omni_arena@postgres:5432/omni_arena
    ports:
      - "${PORT:-3001}:${PORT:-3001}"
    restart: unless-stopped

  # Bradley-Terry rating worker. Reads aggregated votes, fits ratings with
  # Fisher-information CIs, and upserts model_ratings on a periodic loop —
  # warm-started refits, with a from-scratch pass every FULL_REFIT_EVERY refits.
  # Each iteration also runs the style-controlled pass (the image's default
  # command is `--loop --style`), which is what fills model_style_ratings and
  # style_control_coefficients for the dashboard's style panels.
  # Requires the server's migrations to have created model_ratings; until then
  # it logs and retries on the next interval.
  #
  # Every knob the worker reads is forwarded explicitly rather than via
  # `env_file`: it needs no provider keys or app secrets, and the defaults below
  # match the worker's own. Values come from the repo-root .env like the rest of
  # the interpolation in this file.
  worker:
    build: ./worker
    depends_on:
      postgres:
        condition: service_healthy
    environment:
      DATABASE_URL: postgres://omni_arena:omni_arena@postgres:5432/omni_arena
      REFIT_INTERVAL_SECONDS: ${REFIT_INTERVAL_SECONDS:-300}
      FULL_REFIT_EVERY: ${FULL_REFIT_EVERY:-12}
      RATING_RIDGE: ${RATING_RIDGE:-0.01}
      STYLE_RIDGE: ${STYLE_RIDGE:-0.05}
      LOG_LEVEL: ${LOG_LEVEL:-INFO}
      LOG_FORMAT: ${LOG_FORMAT:-text}
    restart: unless-stopped

volumes:
  omni_arena_postgres: