Remove POD_NAMESPACE setting from kubernetes manifests

[exekias]

It's no longer needed since #5482 autodetects it, we can now remove POD_NAMESPACE env var, and namespace key under config: https://github.com/elastic/beats/blob/master/deploy/kubernetes/filebeat/filebeat-daemonset.yaml#L34

[liketic]

Hi @exekias So we need to remove POD_NAMESPACE and metadata.namespace in kubernetes module? Thanks!

[exekias]

No need to update code on this one, this is about testing this still works after removing these lines

beats/deploy/kubernetes/filebeat/filebeat-daemonset.yaml

Lines 38 to 41 in f122937

	- name: POD_NAMESPACE
	valueFrom:
	fieldRef:
	fieldPath: metadata.namespace

I was planning to do this in the following days 😄

[palash25]

Is anyone working on this? If not then I would like to take this up.

[exekias]

Thank you for volunteering @palash25! I'm afraid I did the job some time ago, but forgot to update this issue. I'm sorry for that 😞

This was fixed by #5963, thank you for bringing this up, I think we can close it now