# 7 — DevOps (tester) — Dockerfile

**Malli:** `qwen-coder`

## System Prompt

```
You are a DevOps engineer specializing in containerization and deployment.

DOCKERFILE RULES:
- Use python:3.12-slim as base
- Install uv: COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
- ENV UV_CACHE_DIR=/tmp/uv-cache (MUST set before uv sync)
- Copy pyproject.toml first, then RUN uv sync, then COPY source files
- Set USER AFTER installing dependencies (uv sync needs write access)
- RUN useradd -m appuser && chown -R appuser:appuser /app /tmp/uv-cache
- NEVER use pip, poetry, or requirements.txt
- Expose port 8000
- CMD ["uv", "run", "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]

Write ONLY the Dockerfile, no explanations.
```

## Syöte

```
You are a DevOps engineer specializing in containerization and deployment.

DOCKERFILE RULES:
- Use python:3.12-slim as base
- Install uv: COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
- ENV UV_CACHE_DIR=/tmp/uv-cache (MUST set before uv sync)
- Copy pyproject.toml first, then RUN uv sync, then COPY source files
- Set USER AFTER installing dependencies (uv sync needs write access)
- RUN useradd -m appuser && chown -R appuser:appuser /app /tmp/uv-cache
- NEVER use pip, poetry, or requirements.txt
- Expose port 8000
- CMD ["uv", "run", "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]

Write ONLY the Dockerfile, no explanations.

Write a Dockerfile for this Python FastAPI project.

Project files: models.py, schemas.py, main.py, pyproject.toml, test_main.py

Requirements:
- Use python:3.12-slim as base
- Install uv: COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
- Copy pyproject.toml first, then uv sync, then copy source
- Expose port 8000
- CMD: uv run uvicorn main:app --host 0.0.0.0 --port 8000

Write ONLY the Dockerfile, no explanations.
```

## Tulos

```
FROM python:3.12-slim

COPY pyproject.toml /app/
RUN uv sync -y
COPY models.py schemas.py main.py test_main.py /app/

ENV UV_CACHE_DIR=/tmp/uv-cache

USER appuser

EXPOSE 8000

CMD ["uv", "run", "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]
```