hostNetworkPoc.yaml

hostNetworkPoc.yaml

apiVersion: v1
kind: Pod
metadata:
  name: influxdb
spec:
  hostNetwork: true
  dnsPolicy: ClusterFirstWithHostNet
  containers:
    - name: influxdb
      image: influxdb
      ports:
        - containerPort: 8086
          hostPort: 8086
---
kind: Service
apiVersion: v1
metadata:
  name: influxdb
spec:
  type: ClusterIP
  ports:
    - port: 8086
      targetPort: 8086
  selector:
    name: influxdb

this manifest is wrong , the selector of the service doesn't match the pod, thus there is no endpoints to forward the traffic.

You have to add a label to the Pod to match the service selector

https://kubernetes.io/docs/concepts/services-networking/service/#defining-a-service