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KIS-TOiR/backend/database-runtime.md
2026-03-15 17:29:37 +03:00

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# Database Runtime
The generated project must include a **PostgreSQL development database** so the application can run immediately after generation without manual database setup.
Use **Docker** to provision the database.
---
# docker-compose.yml
The generator must create a `docker-compose.yml` file at the **project root** (same level as `server/` and `client/` directories).
## Example
```yaml
version: "3.9"
services:
postgres:
image: postgres:16
container_name: toir-postgres
restart: always
environment:
POSTGRES_USER: postgres
POSTGRES_PASSWORD: postgres
POSTGRES_DB: toir
ports:
- "5432:5432"
volumes:
- postgres_data:/var/lib/postgresql/data
volumes:
postgres_data:
```
---
# Rules
- **Location:** Project root (e.g. `TOiR-generation/docker-compose.yml` or monorepo root).
- **Service name:** Can be `postgres` or project-specific (e.g. `toir-postgres` as container_name).
- **Credentials and DB name** must match the `DATABASE_URL` in `server/.env`:
- User: `postgres`
- Password: `postgres`
- Database: `toir`
- Host: `localhost`
- Port: `5432`
- **Volume:** Use a named volume so data persists across container restarts.
---
# Usage
Start the database before running the backend:
```bash
docker compose up -d
```
Stop:
```bash
docker compose down
```
Without this file and a running database, the backend will fail at runtime with errors such as:
```
PrismaClientInitializationError P1001: Can't reach database server at localhost:5432
```