docker-compose.yml

# Postgres with the pgvector extension preinstalled. The plain `postgres`
# image will not work — src/db.js runs CREATE EXTENSION vector on startup.
services:
  postgres:
    image: pgvector/pgvector:pg17
    container_name: rag-postgres
    restart: unless-stopped
    environment:
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_DB: ${POSTGRES_DB}
    ports:
      - "5432:5432"
    volumes:
      - pgdata:/var/lib/postgresql/data
    # The app calls initDb() immediately on boot, so waiting for the port to
    # open is not enough — pg_isready confirms the server accepts queries.
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 5s
      timeout: 5s
      retries: 5

volumes:
  pgdata: