Refactoring Kubernetes labels

[nlamirault]

[Support Kubernetes recommended labels and additional labels]

• Use Kubernetes recommended labels
• Support to additional labels

How to use

helm template .

Testing done

Manifests seems valid. Ex:

---
# Source: gadget/templates/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    helm.sh/chart: gadget-1.0.0
    app.kubernetes.io/name: gadget
    app.kubernetes.io/instance: release-name
    app.kubernetes.io/component: controller
    app.kubernetes.io/version: "1.0.0"
    app.kubernetes.io/managed-by: Helm
  name: release-name-gadget
  namespace: gadget

[mqasimsarfraz]

@nlamirault Thanks for the contribution. The changes are looking great with a quick test.

But I see that the CI is failing since it detect changes in deploy.yaml (used by kubectl gadget deploy) since we don't want helm related labels in it. Perhaps we can guard these labels with skipLabels (default false) value and set it to true here?

[mqasimsarfraz]

Thanks for handling the comments. Can you please create a single commit for all the changes ? Afterwards, it is ready to go!

[mqasimsarfraz]

LGTM!

[mqasimsarfraz]

Thanks for the contribution!