On the old bridge node we had some unmanaged venv's with a very old,
now unmaintained RAX DNS API interaction tool.
Adding the RDNS entries is fairly straight forward, and this small
tool is mostly a copy of some of the bits for our dns api backup tool.
It really just comes down to getting a token and making a post request
with the name/ip addresses.
When the cloud the node is launched as is identified as RAX, this will
automatically add the PTR records for the ip4 & 6 addresses. It also
has an entrypoint to be called manually.
This is added and hacked in, along with a config file for the
appropriate account (I have added these details on bridge).
I've left the update of openstack.org DNS entries as a manual
procedure. Although they could be set automatically with small
updates to the tool (just a different POST) -- details like CNAMES,
etc. and the relatively few servers we start in the RAX mangaed DNS
domains means I think it's easier to just do manually via the web ui.
The output comment is updated.
Change-Id: I8a42afdd00be2595ca73819610757ce5d4435d0a
20d2643f74