Long build time for kuksa-viss-client

[erikbosch]

In the requirements.txt file for kuksa-viss-client we state that we shall use grpcio ~= 1.46.0 and grpcio-tools ~= 1.46.0 but when using alpine (like in docker file) it seems that we need to build them from scratch if they are not cached, which can take > 45 minutes, like in this build

I assume this is because e.g. https://pypi.org/project/grpcio-tools/1.46.5/#files does not have pre-built wheel for musllinux_1_1_aarch64 which is required when using Alpine.

Other observations:

• I did by the way tried to change gps2val to use python:3.9-slim-bullseye instead, but then I got an error when trying to push ttl image, possibly related to error 413 request entity too large while pushing an image replicatedhq/ttl.sh#104, see also Push to harbor fails with "413 Request Entity Too Large" docker/build-push-action#634
• For many other Dockerfiles we use something else than Alpine and that is an alternative - but then we end up with a bigger container (as more junk included)
• It seems that the wheel for grpcio/grpcio-tools is not complete - there are "hidden dependencies" to e.g. linux-headers and/or g++ needed if you need to build it yourself (as needed for arm with Alpine). I.e. you must install certain items by apk or pip before installing grpcio, see e.g. Upgrade docker build environment for gps2val eclipse-kuksa/kuksa.val.feeders#24.

[erikbosch]

Not relevant any longer it seems