For security reasons we don't want to use the default azure functions img, as that one and all .net core based imgs are based default on Debian. Alpine is from a security point of view much better. Debian has alot of vulnerabilities, where alpine has none. More info on that subject here: https://ignas.me/tech/docker-image-vulnerabilities-in-net-core/
Anyhow, v2 of functions does have a alpine based docker img, v3 is missing it.
I was wondering why, as v3 exists for more than a year already. Does anyone know about that or about a release data related to that?
Or sees another solution?
I tried and you could use the default v3 dockerfile, change it to use OS alpine. But I don't know how well that has been tested (maybe there is an issue with v3 on alpine?), and we don't want to maintain it ourselves for every future version.