logs

$ kubectl create -f sts-svc.yaml
$ kubectl logs -f web-0
PING web-0.test (10.28.0.104): 56 data bytes
64 bytes from 10.28.0.104: seq=0 ttl=64 time=0.029 ms

--- web-0.test ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 0.029/0.029/0.029 ms

PING web-1.test (10.28.2.71): 56 data bytes
64 bytes from 10.28.2.71: seq=0 ttl=62 time=1.357 ms

--- web-1.test ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 1.357/1.357/1.357 ms

PING web-2.test (10.28.1.81): 56 data bytes
64 bytes from 10.28.1.81: seq=0 ttl=62 time=1.515 ms

--- web-2.test ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 1.515/1.515/1.515 ms

sts-svc.yaml

apiVersion: v1
kind: Service
metadata:
  name: test
spec:
  ports:
    - port: 80
      name: web
  clusterIP: None
  selector:
    tier: backend
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: web
spec:
  serviceName: "test"
  replicas: 3
  selector:
    matchLabels:
      app: test
  template:
    metadata:
      labels:
        app: test
        tier: backend
    spec:
      containers:
        - name: test
          image: busybox
          command:
            - sh
            - -c
            - |
              sleep 10
              ping web-0.test -c 1
              echo
              ping web-1.test -c 1
              echo
              ping web-2.test -c 1
              echo
              sleep 5
          ports:
            - containerPort: 80
              name: web