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Make docker images much smaller #1396

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molpopgen merged 1 commit into from
Oct 9, 2025
Merged

Make docker images much smaller #1396

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42 changes: 16 additions & 26 deletions deployment/docker/Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,25 +1,21 @@
FROM ubuntu:jammy
FROM ghcr.io/astral-sh/uv:python3.13-trixie AS build

# Once this image is built:
# If you have a script $HOME/tmp/foo.py,
# you can run it via
# docker run --rm -v $HOME/tmp:/app fwdpy11 python3 /app/foo.py
# docker run --rm -v $HOME/tmp:/work:z fwdpy11 sh -c ". /app/venv/bin activate && python3 /work/foo.py"
WORKDIR /app

COPY . /app
ENV PATH /root/.cargo/bin:$PATH

Check warning on line 10 in deployment/docker/Dockerfile

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GitHub Actions / docker

Legacy key/value format with whitespace separator should not be used 

LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format
More info: https://docs.docker.com/go/dockerfile/rule/legacy-key-value-format/

RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -qq -y install \
gcc \
git \
g++ \
libgsl-dev \
python3 \
python3-dev \
python3-venv \
python3-pip \
curl \
&& rm -rf /var/lib/apt/lists/* \
&& rm -rf build \
&& rm -rf build dist \
# For some reason, installing rustup with apt and then setting the toolchain
# results in Corrosion being unable to find a valid toolchain.
# We should try to fix this later.
&& curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | bash -s -- -y \
&& . "$HOME/.cargo/env" \
# Pin the rustc toolchain to a specific version.
Expand All @@ -31,19 +27,13 @@
&& cargo install --locked cbindgen@0.24.3 \
&& rustc --version \
&& cbindgen --version \
&& ls -lhrt
&& uv build . \
&& uv venv /app/venv \
&& . /app/venv/bin/activate \
&& ls -lhrt dist \
&& uv pip install dist/fwdpy11*.whl

RUN . "$HOME/.cargo/env" \
&& python3 -m venv venv \
&& . venv/bin/activate \
&& python -m pip install --upgrade pip \
&& python -m pip install build \
&& python -m build . \
&& deactivate \
&& python3 -m pip install dist/fwdpy11*.whl \
&& rm -rf venv \
&& python3 -m venv /venv \
&& . /venv/bin/activate \
&& python3 -m pip install dist/fwdpy11*.whl \
&& cd / \
&& rm -rf /app /root/.cargo
FROM python:3.13-slim-trixie
COPY --from=build /app/venv /app/venv
# Make sure the GSL runtime is present
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -qq -y install libgsl28 && apt clean
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