job.yaml

apiVersion: batch/v1
kind: Job
metadata: 
  name: pc-job
  namespace: dev
spec: 
  manualSelector: true
  selector: 
    matchLables: 
      app: counter-pod 
  template: 
    metadata: 
    labels:  
      app: counter-pod 
    spec: 
      restartPolicy: Never
      containers: 
      - name: counter
        image：busybox:1.30
        command: ["bin/sh", "-c", "for i in 9 8 7 6 5 4 3 2 1; do echo $i;sleep 3;done"]

tomcat-nginx.service.yaml

apiVersion: apps/v1
kind: Deployment
metadata: 
  name: nginx-deployment
  namespace: dev
spec: 
  replicas: 3
  selector:
    matchLabels: 
      app: nginx-pod
  template: 
    metadata: 
      labels: 
        app: nginx-pod
    spec: 
      containers: 
      - name: nginx
        image: nginx:1.17.1
        ports: 
        - containerPort: 80
---
apiVersion: apps/v1
kind: Deployment
metadata: 
  name: tomcat-deployment
  namespace: dev
spec: 
  replicas: 3
  selector:
    matchLabels: 
      app: tomcat-pod
  template: 
    metadata: 
      labels: 
        app: tomcat-pod
    spec: 
      containers: 
      - name: tomcat
        image: tomcat:8.5-jre10-slia
        ports: 
        - containerPort: 8080
---
apiVersion: apps/v1
kind: Service
metadata: 
  name: nginx-service
  namespace: dev
spec:
  selector:
    app: nginx-pod
  clusterIP: None
  type: ClusterIP
  ports:
  - port: 80
    targetPort: 80
---
apiVersion: apps/v1
kind: Service
metadata: 
  name: tomcat-service
  namespace: dev
spec:
  selector:
    app: tomcat-pod
  clusterIP: None
  type: ClusterIP
  ports:
  - port: 8080
    targetPort: 8080