Question: Local testing setup

Today I was trying to build and run wire-server on my local machine.
I walked through this guide: https://docs.wire.com/how-to/install/kubernetes.html
Option 2 was my choice. I created a "target" container for deployment with root password-less SSH-access.

It looks that the guide assumes the single target machine. But I couldn't pass this step (ran from inside of the docker container with all dependencies):

poetry run ansible-playbook -i hosts.ini kubernetes.yml -vv

The "target" container is debian-slim (I tried alpine as well, but apparently it is not supported).
The SSH-access is not a problem, I verified it. The errors are weird and change sometime.
Either lock of dpkg, or complaining that it is impossible to gain root privileges (with root SSH-login!).

It feels for me like simultaneous Ansible jobs are conflicting with each other.
Is single-node deployment really supported?

Start with the linked Kubernetes installation guide, especially Option 2, and reproduce poetry run ansible-playbook -i hosts.ini kubernetes.yml -vv against the described single target container. Capture the exact dpkg and privilege errors and determine whether single-node deployment is supported; done means the support status and required setup are clearly documented or the failure is reproducible and actionable.