diff --git a/Dockerfile b/Dockerfile
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+FROM ubuntu:20.04
+
+
+# Installing Python 2, because Grumpy is not ported to Python 3 yet
+
+# Go for run-time pulls tzdata, which asks interactive questions
+# https://stackoverflow.com/questions/44331836/apt-get-install-tzdata-noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y \
+    curl \
+    gcc \
+    golang \
+    make \
+    python2-dev \
+  && rm -rf /var/lib/apt/lists/*
+RUN curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && python2 get-pip.py
+
+
+COPY . /app
+WORKDIR /app
+
+
+# Install tools in editable mode. Some `grumpy` commands need run-time, and
+# run-time needs at least `grumpy run` to be built.
+RUN cd grumpy-tools-src && pip install --editable .
+
+# Install run-time in non-editable mode
+RUN cd grumpy-runtime-src && pip install .
+