Add dockerfile (#9)

Dockerfile

@@ -0,0 +1,24 @@
+FROM python:3.10-slim-buster
+LABEL maintainer="Jessica Walkenhorst"
+LABEL description="Meeting-Attendance-Organizer"
+
+ARG PIP_VERSION="21.2.1"
+ARG POETRY_VERSION="1.2.0"
+
+
+RUN pip3 install -q "pip==$PIP_VERSION"
+RUN pip3 install -q "poetry==$POETRY_VERSION"
+
+# Tell Poetry where to place its cache and virtual environment
+ENV POETRY_CACHE_DIR=/opt/.cache
+
+WORKDIR /home/
+
+COPY pyproject.toml poetry.lock app.py README.md ./
+COPY src ./src/
+
+RUN poetry install 
+
+EXPOSE 7860
+
+ENTRYPOINT ["poetry", "run", "streamlit", "run", "app.py", "--server.port", "7860"]