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diff --git a/ci/lint/Dockerfile b/ci/lint/Dockerfile
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+# See test/lint/README.md for usage.
+#
+# This container basically has to live in this directory in order to pull in the CI
+# install scripts. If it lived in the root directory, it would have to pull in the
+# entire repo as docker context during build; if it lived elsewhere, it wouldn't be
+# able to make back-references to pull in the install scripts. So here it lives.
+
+FROM python:3.7-buster
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV LC_ALL=C.UTF-8
+
+# This is used by the 04_install.sh script; we can't read the Python version from
+# .python-version for the same reasons as above, and it's more efficient to pull a
+# preexisting Python image than it is to build from source.
+ENV SKIP_PYTHON_INSTALL=1
+
+# Must be built from ./ci/lint/ for these paths to work.
+COPY ./docker-entrypoint.sh /entrypoint.sh
+COPY ./04_install.sh /install.sh
+
+RUN /install.sh && \
+  echo 'alias lint="./ci/lint/06_script.sh"' >> ~/.bashrc && \
+  chmod 755 /entrypoint.sh && \
+  rm -rf /var/lib/apt/lists/*
+
+
+WORKDIR /bitcoin
+ENTRYPOINT ["/entrypoint.sh"]