[doc] Support for images needs to be clarified

[Brendan Donegan]

There are several problems with the documentation around OS support @ https://maas.ubuntu.com/docs2.0/os-support.html:

CentOS support is built in from 2.0 so maas-image-builder is redundant in any version of the docs after that
The Pricing section on maas.io says the 'Free' tier allows custom images, which the above seems to give quite a wide definition of.
Overall the documentation and maas.io site need to a lot clearer about how users can use OSs other than Ubuntu on different MAAS versions, but a high level description seems to be:

MAAS 2.0 and higher: Ubuntu & CentOS built-in and Free, everything else available on a paid plan. Remove mention of maas-image-builder from docs

MAAS 1.7-1.9: Ubuntu built in, CentOS can be created with MAAS image builder, both Free. Everything else through a paid plan. Keep the docs but clarify that only CentOS can be built with maas-image-builder.

[Peter Matulis (petermatulis)]

@Andres
I'm pretty sure this no longer applies.

[Adam Collard (adam-collard)]

This bug has not seen any activity in the last 6 months, so it is being automatically closed.

If you are still experiencing this issue, please feel free to re-open.

MAAS Team