>>6
they don't love it. they "love" it. Its enforced from top (RedHat) to bottom.
There is a trend for Infrastructure as a Code. Guy who actually invented & wrote Ansible, later after RH bouth his startup and fired him, came up with tool that just use real programming language code instead of yaml. But no one listened, nor cared. Industry already bough & embraced Y A M L as "easy" IaaC.
Fabric+Paramiko was excellent, some times evel shell scripts better than YAML since YAML is not a real programming language and ugly af.
however you can avoid yaml, in ansible/salt/chef you can simply write code and call api deirectly from code, modules, plugins, or at least run script from yaml.
Docker is worse than yaml.
Nix is a whole new weird animal in town and it's hard to adopt, in comparison to mentioned tools above.