[collectd] possible to put a computed value into Hostname in collectd.conf?

[Ruben Kerkhof]

Hi Michael,

On Wed, Mar 1, 2017 at 10:18 PM, Michael Martinez <mwtzzz at gmail.com> wrote:
> We run collectd on all our Amazon instances. The FQDN that an instance
> knows itself as, is its internal ip (eg.
> ip-172-1-30-197.ec2.internal), and this is what gets included in the
> name of the metric sent by collectd via the Graphite plugin.
>
> We'd like to change this behavior so use the external dns name instead
> of the internal hostname. The external hostname can be derived on the
> instance itself by running:
>
> /opt/aws/bin/ec2-metadata -p |awk '{split($2,a,"."); print a[1]}
>
> Is there a way to configure collectd to use this hostname instead of
> the internal one? Or am I pretty much limited to managing the
> collectd.conf:Hostname line with something like Salt?

the Hostname can only be changed in collectd.conf, so managing that
with Salt seems a good solution.

>
> --
> ---
> Michael Martinez
> http://www.michael--martinez.com

Kind regards,

Ruben