Allow flexible architecture on containerbuilds depending on the build platform.

[tibeer]

Based on https://docs.docker.com/build/guide/multi-platform/#platform-build-arguments
you can use variables like TARGETARCH or TARGETOS to determine the architecture used in the build command
inside the Dockerfile. This would allow multiarch binary builds for the server.

relates #4339
relates #3994

Signed-off-by: Tim Beermann [email protected]

Description

The current multi-arch builds only build the container image for the desired architecture, the go binary inside is still build with the wrong architecture. This PR tries to automatically adopt the build arguments to the related architecture given in the build command.

Changelog

Changed the server Dockerfile to allow platform agnostic build arguments. E.g. arm64 when docker buildx is running for platform linux/arm64.

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• The light- and dark-theme are both supported and tested
• The design was implemented and is responsive for all devices and screen sizes
• The application was tested in the most commonly used browsers (e.g. Chrome, Firefox, Safari)

[Lennart01]

Awesome this should do the trick.
I will merge this into a temp branch and create a new PR so that all our checks can run and we can test it once. 👍.
Tracked in #4363