diff --git a/Dockerfile b/Dockerfile
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+++ b/Dockerfile
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+FROM ubuntu:18.04
+RUN apt-get update && apt-get install \
+  -y --no-install-recommends python3 python3-virtualenv
+
+ENV VIRTUAL_ENV=/opt/venv
+RUN python3 -m virtualenv --python=/usr/bin/python3 $VIRTUAL_ENV
+ENV PATH="$VIRTUAL_ENV/bin:$PATH"
+
+# Install dependencies:
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+
+# Run the application:
+COPY *.py ./
+ENTRYPOINT ["python", "zonefile.py"]