Is your feature request related to a problem? Please describe.
K8s allows us to set the dnsPolicy to ClusterFirstWithHostNet for pods to make service names in k8s resolvable when we enable the host network for the pods.
Currently, the helm chart hasn't exposed this to users.

Describe the solution you'd like
Add controller.dnsPolicy to the values file.

Describe alternatives you've considered
N/A.

Additional context
N/A.