Ansible 2.10 support
There are quite a few warnings with Ansible 2.9, as well as syntax changes that will have to be addressed (e.g. with_* -> loop).
Also it seems it no longer likes the format of some autogenerated assets such as per-service group names. We'll have to generate sanitized group names (dashes to underscores), which is going to require adding lots of big warnings to the documentation.
Float runs fine with Ansible 2.9 even with the above warnings, but we'll probably have to fix at least the group naming issue with 2.10.