services:
  db:
    image: postgres:16-alpine
    restart: always
    environment:
      - POSTGRES_USER=${POSTGRES_USER:-n8n_user}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-n8n_password}
      - POSTGRES_DB=${POSTGRES_DB:-n8n_db}
    volumes:
      - ${POSTGRES_DATA_PATH:-postgres_data}:/var/lib/postgresql/data
    healthcheck:
      # Note: We use the same fallbacks here to ensure the check matches the credentials
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-n8n_user} -d ${POSTGRES_DB:-n8n_db}"]
      interval: 5s
      timeout: 5s
      retries: 5

  n8n:
    image: n8nio/n8n:latest
    restart: always
    ports:
      - "${N8N_PORT:-5678}:5678"
    environment:
      - DB_TYPE=postgresdb
      - DB_POSTGRESDB_HOST=db
      - DB_POSTGRESDB_PORT=5432
      - DB_POSTGRESDB_DATABASE=${POSTGRES_DB:-n8n_db}
      - DB_POSTGRESDB_USER=${POSTGRES_USER:-n8n_user}
      - DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD:-n8n_password}
      - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY:-default_encryption_key_change_me}
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE:-UTC}
      - TZ=${GENERIC_TIMEZONE:-UTC}
      - N8N_HOST=${SUBDOMAIN:-n8n}.${DOMAIN_NAME:-localhost}
      - WEBHOOK_URL=https://${SUBDOMAIN:-n8n}.${DOMAIN_NAME:-localhost}/
    volumes:
      - ${N8N_DATA_PATH:-n8n_data}:/home/node/.n8n
    depends_on:
      db:
        condition: service_healthy

volumes:
  n8n_data:
  postgres_data: