docker-compose.yml

services:
  opencode-proxy:
    build: .
    # Internal only — Headroom connects via Docker network.
    # Not exposed on host; clients use Headroom:8787 instead.
    # To access the proxy directly (bypassing Headroom), add:
    #   ports:
    #     - "8080:8080"
    env_file: .env
    ports:
      - "8080:8080"
    depends_on:
      headroom:
        condition: service_healthy
        required: false # Headroom is opt-in; proxy starts without it
    restart: unless-stopped

  # Headroom compression proxy — public entry point on port 8787.
  # Flow: Client → Headroom:8787 → opencode-proxy:8080 → upstream
  # Configure your client: ANTHROPIC_BASE_URL=http://localhost:8787
  headroom:
    build:
      context: .
      dockerfile: Dockerfile.headroom
    ports:
      - "8787:8787"
    command:
      [
        "--host",
        "0.0.0.0",
        "--port",
        "8787",
        "--memory",
        "--memory-db-path",
        "/data/headroom.db",
        "--code-aware",
        "--intercept-tool-results",
      ]
    environment:
      - ANTHROPIC_TARGET_API_URL=http://opencode-proxy:8080
      - ANTHROPIC_API_KEY=${OPENCODE_API_KEY}
      - OPENAI_TARGET_API_URL=http://opencode-proxy:8080/v1
      - OPENAI_API_KEY=${OPENCODE_API_KEY}
      - HEADROOM_TELEMETRY=off
      # ── Compression tuning (aggressive) ──────────────────────────────────
      - HEADROOM_COMPRESSION_STABLE_AFTER_TURN=1
      - HEADROOM_STALE_READ_COMPRESS_AFTER_TURNS=1
      - HEADROOM_COMPRESS_USER_MESSAGES=true
      - HEADROOM_COMPRESS_SYSTEM_MESSAGES=true
      - HEADROOM_MIN_TOKENS=50
    volumes:
      - headroom-data:/data
    healthcheck:
      test: ["CMD", "curl", "-sf", "http://localhost:8787/health"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s
    restart: unless-stopped

volumes:
  headroom-data: