feat: add basic production Dockerfiles

closes #8

docker/prod/worker.Dockerfile

@@ -0,0 +1,30 @@
+FROM python:3.10 AS python-build
+
+WORKDIR /etc/whisperbox
+
+COPY pyproject.toml .
+
+RUN python -m venv /opt/venv && \
+    /opt/venv/bin/pip install -U pip wheel && \
+    /opt/venv/bin/pip install -U .[worker]
+
+FROM python:3.10 as python-deploy
+
+ARG WHISPER_MODEL
+
+WORKDIR /etc/whisperbox
+
+COPY --from=python-build /opt/venv /opt/venv
+
+COPY --from=mwader/static-ffmpeg:latest /ffmpeg /usr/local/bin/
+COPY --from=mwader/static-ffmpeg:latest /ffprobe /usr/local/bin/
+
+COPY app ./app
+
+ENV VIRTUAL_ENV /opt/venv
+ENV PATH /opt/venv/bin:$PATH
+
+# COPY scripts/download_model.py .
+# RUN chmod +x download_model.py && python download_model.py ${WHISPER_MODEL:-small}
+
+CMD celery --app=app.worker.main.celery worker --loglevel=info --concurrency=1