@nb_glur and I have been troubleshooting some problems with the Forum moderation settings in addition to this eaasi-installer issue, so just to copy some of that information here for others:
The alpine-fix patch for Ansible referenced in Deploy failing on cryptography build - #4 by oooleg seems to have solved the compatibility issue Stephan first mentioned. The install still failed initially, possibly because of the Ansible script edits/hacks he had already made above:
emil@emil-ubuntu:/opt/eaasi-installer/eaas/ansible$ git apply alpine-313.patch
warning: docker/alpine/Dockerfile ist vom Typ 100755, erwartete 100644
error: Anwendung des Patches fehlgeschlagen: docker/ansible/data/installer.sh:8
error: docker/ansible/data/installer.sh: Patch konnte nicht angewendet werden
warning: docker/ansible/data/py-deps.txt ist vom Typ 100755, erwartete 100644
I can not read the error above but I am not sure that we need to continue here - I think our recommendation would be to start with a clean eaasi-installer, apply the patch, then attempt the prepare.sh and deploy.sh scripts.