[infra][tc] Container images in openstack/ on Docker Hub
fungi at yuggoth.org
Wed Jan 30 14:35:36 UTC 2019
On 2019-01-30 13:57:03 +0000 (+0000), Sean Mooney wrote:
> i would recommend basing such a container on the offical
> python:3-alpine image as it is only 30mb and has everything we
> should need to just pip install the project. it has python 3.7.2
> currently but the 3-alpine tag tracks both the latest release of
> alpine and the latest release of python alpine supports.
In a twist of irony, Python manylinux1 wheels assume glibc and so
any with C extensions are unusable with Alpine's musl. As a result,
we'll likely need to cross-compile any of our non-pure-Python
dependencies from sdist/source with an appropriate toolchain and
inject them into image.
> in some rare cases we might need to also install bindeps but i
> would hope that between bindeps and pip we could build small
> images for source fairly simpely and leave the orchestration of
> those images to the enduser.
The bindep tool does at least have support for Alpine now, so as
long as there are packages available for our system dependencies
that should hopefully be a viable option.
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