diff --git a/Dockerfile b/Dockerfile
index 0884d6c..15565f6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1 +1,17 @@
-# TODO: generation subagent fills this in.
+FROM python:3.12-slim AS builder
+WORKDIR /build
+RUN python -m venv /venv
+ENV PATH=/venv/bin:$PATH
+COPY pyproject.toml README.md ./
+COPY app ./app
+RUN pip install --no-cache-dir .
+
+FROM python:3.12-slim
+RUN useradd --create-home --uid 10001 appuser
+COPY --from=builder /venv /venv
+ENV PATH=/venv/bin:$PATH PYTHONUNBUFFERED=1
+USER appuser
+WORKDIR /home/appuser
+EXPOSE 8000
+HEALTHCHECK --interval=30s --timeout=3s CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/healthz')"
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]