Add possibility to install components in hostNetwork

[v0lumehi]

Hi, we use our own CNI (Cilium) and therefore have to install all components in the hostNetwork. Kubernetes offers the option to do this: https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.26/#podspec-v1-core
We also had to set dnsPolicy to ClusterFirstWithHostNet in our setup.
Can we make both parameters configurable in the Helm chart?
We are currently using helm post-renderer to add the functionality and could remove it again when the helm chart offers the functionality

Image I'm using:
latest

Issue or Feature Request:
Feature Request

[ytsssun]

Hi @v0lumehi , thanks for cutting us this issue. To clarify, do you need this dnsPolicy overwrite to be available to all existing components? Namely:

• brupop-agent (DaemonSet)
• brupop-apiserver (Deployment)
• brupop-controller-deployment (Deployment)

To approach this, we can add a top level override in the Values.yaml that apply this to all components. We can also add dedicated override at component level.

We recently merged a change to enable top level override for PodLabels (#617), we can certainly do something similar here for dnsPolicy.