k8s creationTimestamp 參數

sed -i "s/Timestamp/`date +%s`/g" nginx-app.yaml'

每次更新的時候修改Timestamp 標簽參數，那么每次發布都會都是自動更新刪除老的pod

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nginx-app
  name: nginx-app
spec:
  replicas: 1
  minReadySeconds: 15     #滾動升級15s后標志pod准備就緒
  strategy:
    rollingUpdate:        #replicas為2, 升級過程中pod個數在1-3個之間
      maxSurge: 1         #滾動升級時會先啟動1個pod
      maxUnavailable: 1   #滾動升級時允許pod處於Unavailable的最大個數
  selector:
    matchLabels:
      app: nginx-app
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: nginx-app
        timestamp: "Timestamp"
    spec:
      containers:
      - image: nginx:1.11.9
        name: nginx
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-app
  labels:
    app: nginx-app
spec:
  ports:
  - name: nginx-app
    port: 80
    targetPort: 80
  selector:
    app: nginx-app