docker-compose.yaml

# Signal self-host.
#
# This compose file runs the Next.js app only. Bring your own Supabase —
# either a hosted project (https://supabase.com) or a local stack via
# `supabase start`.
#
# Minimal setup:
#   cp .env.example .env
#   # fill in SUPABASE_* and ANTHROPIC_API_KEY at minimum
#   docker compose up -d
#
# The app will be reachable at http://localhost:3000.

services:
  app:
    build:
      context: .
      dockerfile: Dockerfile
      args:
        # Build-time env (inlined into the client bundle).
        NEXT_PUBLIC_SUPABASE_URL: ${NEXT_PUBLIC_SUPABASE_URL}
        NEXT_PUBLIC_SUPABASE_PUBLISHABLE_DEFAULT_KEY: ${NEXT_PUBLIC_SUPABASE_PUBLISHABLE_DEFAULT_KEY}
        NEXT_PUBLIC_APP_URL: ${NEXT_PUBLIC_APP_URL:-http://localhost:3000}
    image: signal:latest
    restart: unless-stopped
    ports:
      - "${PORT:-3000}:3000"
    env_file:
      - .env
    environment:
      NODE_ENV: production
    healthcheck:
      test:
        [
          "CMD",
          "node",
          "-e",
          "require('http').get('http://localhost:3000/api/health', (r) => process.exit(r.statusCode === 200 ? 0 : 1))",
        ]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 20s