Added Dockerfile

Dockerfile

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+FROM python:3.6
+
+ENV PYTHONUNBUFFERED=1 \
+    POETRY_VERSION=1.0.3 \
+    POETRY_HOME="/opt/poetry" \
+    POETRY_VIRTUALENVS_IN_PROJECT=true \
+    POETRY_NO_INTERACTION=1
+
+ENV PATH="$POETRY_HOME/bin:$VENV_PATH/bin:$PATH"
+
+WORKDIR /app
+
+RUN curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python
+
+COPY . ./
+
+RUN poetry install --no-dev --no-interaction
+
+EXPOSE 5000
+CMD ["poetry", "run", "python", "-m", "openflexure_microscope.api.app"]