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  • k8s deployment

    案例01

    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: nginx-deployment
    spec:
      selector:
        matchLabels:
          app: nginx
      replicas: 3
      strategy:
        type: RollingUpdate
        rollingUpdate:
          maxUnavailable: 1
      template:
        metadata:
          labels:
           app: nginx
           track: stable
        spec:
          restartPolicy: Always
          nodeSelector:
            mem: large
          volumes:
          - name: nginx-logs
            emptyDir: {}
          containers:
           - name: nginx
             image: nginx:1.7.9
             imagePullPolicy: Always
             ports:
             - containerPort: 80
               protocol: TCP
             volumeMounts:
             - name: nginx-logs
               mountPath: /var/log/nginx/
             livenessProbe:
               httpGet:
                 port: 80
                 path: /check_healty
                 host: ping.zhufunin.com
                 scheme: HTTP
                 httpHeaders:
                 - name: user-agent
                   value: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36'
    

    创建Deployment控制器
    kubectl apply -f exampledeploymentv1.yaml --record
    这里一定要加--record, 每次修改Deployment控制器时所使用的命令都会记录到备注字段,
    以便在查看Deployment控制器变更历史或者回滚时可以辨别每次修改的内容

    案例02

    [root@master01]# kubectl apply -f deployment-web.yaml --record
    deployment.apps/mywebdeployment created
    [root@master01]# cat deployment-web.yaml
    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: mywebdeployment
    spec:
      selector:
        matchLabels:
          apps: web
      replicas: 4
      strategy:
        type: RollingUpdate
        rollingUpdate:
          maxUnavailable: 1
      template:
        metadata:
         labels:
           apps: web
        spec:
          containers:
          - name: web
            image: python:3.7
            command: ['sh', '-c']
            args: ['echo "<p>The host is $(hostname) </p>" > index.html;python -m http.server 80']
            ports:
            - name: mywebports
              containerPort: 80
    [root@master01]#
    

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  • 原文地址:https://www.cnblogs.com/faberbeta/p/14143865.html
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