Supporting Kubernetes recommended labels

[Cottonglow]

Kubernetes recommends some shared labels to apply to resources to help manage the cluster. Some of the KEDA resources either don't have any labels at all or are a bit lacking, making them harder to manage.

The HPA that is created by KEDA also doesn't have any labels and these labels could help differentiate it from self-managed HPAs.

Use-Case

These are the labels that Kubernetes recommends to add to the resources:

app.kubernetes.io/name
app.kubernetes.io/instance
app.kubernetes.io/version
app.kubernetes.io/component
app.kubernetes.io/part-of
app.kubernetes.io/managed-by

What are the thoughts on this and/or is this planned for KEDA in the future?

[tomkerkhove]

I like the idea! Most of it should be done via our chart/operator but our HPAs should have them as well.

[Cottonglow]

I can have a look at adding them, and then we can discuss in the PR what labels/values we want to keep or use.