CloudWatch - EBS Volume Name

[Nils Krabshuis]

Hello all,

Using the Prometheus CloudWatch Exporter, does anyone know or have a way of getting the EBS volume name (tag:Name) out rather than the VolumeId? I have many volumes, identifying them by and alerting on their ID is not very helpful.

Thanks,

Nils 

[Brian Candler]

If there's a separate metric which has VolumeId and volume name as labels, then you can use a many-to-one join to add the labels from this extra metric to your original query.  See:

https://www.robustperception.io/how-to-have-labels-for-machine-roles

https://www.robustperception.io/exposing-the-software-version-to-prometheus

https://www.robustperception.io/left-joins-in-promql

https://prometheus.io/docs/prometheus/latest/querying/operators/#many-to-one-and-one-to-many-vector-matches

[Nils Krabshuis]

Thanks, yes, I'm aware of how to join labels e.a. )

The problem I'm facing is that the Name tag for Volumes does not seem to be exposed in the first place - so I was wondering whether there was someone who found a way to pull in Name or otherwise.

[Brian Candler]

OK.  And for completeness, presumably you've tried the aws_tag_select feature?