Add info metric for release labels

[carlpett]

This PR adds informational metrics about the HelmRelease object, for example:

flux_helm_operator_release_labels{label_foo="florp",label_hej="hopp",release_name="my-release",target_namespace="some-ns"} 1
flux_helm_operator_release_labels{label_baz="qux",label_foo="bar",release_name="another-release",target_namespace="default"} 1

This goes along the lines of the metrics exposed by kube-state-metrics, and is useful to join in with the conditions metric for alerting (eg a team label in our case).

I'm not quite sure I like the wiring-up bits in the operator itself, please have an extra look at what you think there.

Signed-off-by: Calle Pettersson [email protected]

[carlpett]

I can't request reviewers? cc @hiddeco @stefanprodan I guess?

[carlpett]

Marking as "ready for review" since maybe that was preventing notifications? Still very open to feedback that something ought to be done differently

[carlpett]

ping @hiddeco @stefanprodan @2opremio @squaremo

[ercpereda]

This is a very useful metric, it can be used to label the slack channel do you want to send a notification if the release fails. I hope it gets merged soon

[AdrienKuhn]

Hi, is there any plan to review and merge this PR ? We are also using labels on Kubernetes resources to route alerts to the right teams.

Thanks !

[kingdonb]

Thanks for contributing here! We are not going to make any changes like this here, Flux v1 and Helm Operator are in maintenance mode

You are welcome to reopen this discussion on fluxcd/flux2 if there's something to address in the current series!

Closing, stale.