Metrics with Version

[genofire]

It would be nice, to have in the metrics also a n installed version.

eg.

gotk_condition{type="HelmRelease",version="1.3.2",name="kube-prom",namespace="mon"} 1

[stefanprodan]

You could use https://github.com/sstarcher/helm-exporter to get Helm specific metrics.

The GitOps Toolkit metrics are generic, they are exposed by all Flux controllers for every custom resource. The version attribute is specific to Helm only, it does not exist for GitRepositories, ImagePolicies, Kustomizations, etc. Adding labels such as version, digest, checksum, which change in time, implies high cardinality. Given this, I don’t think we can add version to gotk_condition.

Maybe we could introduce custom metrics specific to a controller? e.g.
flux_helm_release{version="1.3.2",name="cube-prom",namespace="mon"}.

Having custom metrics can significantly increase the Prometheus storage size of Flux data. We should probably make this opt-in via a feature flag.

[kingdonb]

Please refer to:

• Support for flux custom metrics #4128

This has been addressed, now you can create any metrics that you wish if the information is in the CRD spec or status, you can create a metric to report on it. That includes version, there is an example in the docs to support it.

See also:

https://fluxcd.io/flux/monitoring/custom-metrics/