Container is too big

[opentokix]

I like what I see with unit, but the container is way to large, almost a GB. It must be possible to make that much smaller and more portable. I looked inside the python one, and it had linux docs and all kinds of stuff in it.

[lcrilly]

The base Unit image unit:minimal (without language modules) is <98MB so the size you're seeing is because we base the language module images on the official image for that runtime.

https://github.com/nginx/unit/blob/master/pkg/docker/Dockerfile.python3.11#L1

FROM python:3.11-bullseye

[opentokix]

Yes, but the container contains a lot of stuff that is useless - like hundreds of megabytes of docs.

[lcrilly]

We may reconsider using the Python official image as the base.

In the meantime, this will produce a more compact image (~125MB) but note that it uses the version of Python packaged for Debian and not the latest version provided by the Python community.

FROM unit:minimal
RUN curl --output /usr/share/keyrings/nginx-keyring.gpg https://unit.nginx.org/keys/nginx-keyring.gpg && \
    printf "deb [signed-by=/usr/share/keyrings/nginx-keyring.gpg] https://packages.nginx.org/unit/debian/ bullseye unit\ndeb-src [signed-by=/usr/share/keyrings/nginx-keyring.gpg] https://packages.nginx.org/unit/debian/ bullseye unit" > /etc/apt/sources.list.d/unit.list
RUN apt update && apt-get install -y unit-python3.9 && rm -rf /var/lib/apt/lists/*