[ops][nova][designate] Does anyone rely on fully-qualified instance names?
fungi at yuggoth.org
Mon Nov 30 15:36:33 UTC 2020
On 2020-11-30 14:45:52 +0000 (+0000), Stephen Finucane wrote:
> The two questions are unfortunately intertwined. The same
> information - 'instance.hostname' - is used both by cloud-init
> (via the metadata service/config drive) to initialize the instance
> name  and by neutron when attaching ports on a network with DNS
> integration . Unless we decouple those, any change will affect
Okay, then there was also a hidden additional question in there. Do
people who set DNS(-like) names for their server instance names also
rely on the hostname reported in the instance metadata for
configuring the guest OS? In our case we don't, we explicitly set up
/etc/hosts and such with configuration management rather than
trusting something like cloud-init to get it correct. In our case I
don't think we particularly care what "hostname" gets reported in
the metadata, only that the instance name remains flexible.
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