I am trying to get dns pod name resolution working on my EKS Kubernetes cluster v1.10.3. My understanding is that creating a headless service will create the necessary pod name records I need but I'm finding this is not true. Am I missing something?

Also open to other ideas on how to get this working. Could not find alternate solution.

Adding update

I wasn't really clear enough. Essentially what I need is to resolved as such: worker-767cd94c5c-c5bq7 -> 10.0.10.10 worker-98dcd94c5d-cabq6 -> 10.0.10.11 and so on....

I don't really need a round robin DNS just read somewhere that this could be a work around. Thanks!

# my service
apiVersion: v1
kind: Service
metadata:
  ...
  name: worker
  namespace: airflow-dev
  resourceVersion: "374341"
  selfLink: /api/v1/namespaces/airflow-dev/services/worker
  uid: 814251ac-acbe-11e8-995f-024f412c6390
spec:
  clusterIP: None
  ports:
  - name: worker
    port: 8793
    protocol: TCP
    targetPort: 8793
  selector:
    app: airflow
    tier: worker
  sessionAffinity: None
  type: ClusterIP
status:
  loadBalancer: {}





# my pod
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: 2018-08-31T01:39:37Z
  generateName: worker-69887d5d59-
  labels:
    app: airflow
    pod-template-hash: "2544381815"
    tier: worker
  name: worker-69887d5d59-6b6fc
  namespace: airflow-dev
  ownerReferences:
  - apiVersion: extensions/v1beta1
    blockOwnerDeletion: true
    controller: true
    kind: ReplicaSet
    name: worker-69887d5d59
    uid: 16019507-ac6b-11e8-995f-024f412c6390
  resourceVersion: "372954"
  selfLink: /api/v1/namespaces/airflow-dev/pods/worker-69887d5d59-6b6fc
  uid: b8d82a6b-acbe-11e8-995f-024f412c6390
spec:
  containers:
  ...
  ...
    name: worker
    resources: {}
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
      ...
      ...
  dnsPolicy: ClusterFirst
  nodeName: ip-10-0-1-226.us-west-2.compute.internal
  restartPolicy: Always
  schedulerName: default-scheduler
  securityContext: {}
  serviceAccount: airflow
  serviceAccountName: airflow
  terminationGracePeriodSeconds: 30
  tolerations:
  - effect: NoExecute
    key: node.kubernetes.io/not-ready
    operator: Exists
    tolerationSeconds: 300
  - effect: NoExecute
    key: node.kubernetes.io/unreachable
    operator: Exists
    tolerationSeconds: 300
  volumes:
    ...
    ...
status:
  conditions:
  - lastProbeTime: null
    lastTransitionTime: 2018-08-31T01:39:37Z
    status: "True"
    type: Initialized
  - lastProbeTime: null
    lastTransitionTime: 2018-08-31T01:39:40Z
    status: "True"
    type: Ready
  - lastProbeTime: null
    lastTransitionTime: 2018-08-31T01:39:37Z
    status: "True"
    type: PodScheduled
  containerStatuses:
  ...
  ...
    lastState: {}
    name: worker
    ready: true
    restartCount: 0
    state:
      running:
        startedAt: 2018-08-31T01:39:39Z
  hostIP: 10.0.1.226
  phase: Running
  podIP: 10.0.1.234
  qosClass: BestEffort
  startTime: 2018-08-31T01:39:37Z





# querying the service dns record works!
airflow@worker-69887d5d59-6b6fc:~$ nslookup worker.airflow-dev.svc.cluster.local
Server:   172.20.0.10
Address:  172.20.0.10#53

Name: worker.airflow-dev.svc.cluster.local
Address: 10.0.1.234





# querying the pod name does not work :(
airflow@worker-69887d5d59-6b6fc:~$ nslookup worker-69887d5d59-6b6fc.airflow-dev.svc.cluster.local
Server:   172.20.0.10
Address:  172.20.0.10#53

** server can't find worker-69887d5d59-6b6fc.airflow-dev.svc.cluster.local: NXDOMAIN

airflow@worker-69887d5d59-6b6fc:~$ nslookup worker-69887d5d59-6b6fc.airflow-dev.pod.cluster.local
Server:   172.20.0.10
Address:  172.20.0.10#53

*** Can't find worker-69887d5d59-6b6fc.airflow-dev.pod.cluster.local: No answer