[FROG] new config

[Randy Bush]

> i manage/generate router configs centrally and push/expect them out to
> devices.  first time sorting how to do this with frr.
> 
> my mental model would be to rsync a new `/etc/frr/frr.conf` to the
> target and ask it to be loaded in some way.  but reading the page on
> `frr-reload.py`, that does not seem to be the expected model.  so what
> is the expected model?
> 
> do i essentially push to new config to, e.g. `/etc/frr/frr.new` and
> then run `frr-reload.py --reload /etc/frr/frr.new`, and it will update
> `/etc/frr/frr.conf`?

this is all frustratingly conplex; or, more likely, i am just confused.

what i am used to is some command to just load from a canonic unified
configuration file `load override <foo>`

when i have the major config issues sorted, i am sure i will appreciate
the deamons having and retaining a lot of state.  while i am trying to
get the basics working, not so much.  i can not be sure if a change is
unsatisfactory because the config is still incorrect or if there is
some sticky state.

randy