added Dockerfile

Dockerfile

+FROM python:3.10-slim-buster
+
+RUN pip3 install --upgrade pip && pip3 install poetry
+
+WORKDIR /app
+COPY pyproject.toml poetry.lock /app/
+
+RUN poetry config virtualenvs.create false \
+    && poetry install --no-interaction --no-ansi
+
+COPY . .
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