mariadb playbook error

[nameduser0]

trafficstars

sudo bench setup role mariadb

Fails with error because {{ mariadb_version }} is not set

This variable doesn't appear to be set anywhere and is not available as a command line parameter.

I would also suggest you change the playbook so that if mariadb is already installed it just continues with adding the configuration.

There is also a difference between the ubuntu approaches with regards to adding the package repository. Ubuntu adds an apt sources file from a template, Debian tries to add the apt repositories manually even though there is a sources template file, like Ubuntu.

OS: Debian 10.11 Bench version: 5.7.0