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apiVersion: v1
kind: Pod
metadata:
  name: nginx01
  labels:
    app: nginx
  namespace: qhtest
spec:
  containers:
  - name: nginx01
    image: nginx:qh
    ports:
      - containerPort: 80
  dnsConfig:
    nameservers:
    - 202.103.224.68
    - 8.8.8.8

kubectr namesapce create qhtest

ctr -n k8s.io image import nginx.tar

kubectl apply -f test.yaml

kubectl get pods -n qhtest

 kubectl -n qhtest delete pod nginx01
kubectl get pods -n test1
kubectl run my-pod --image=myimage:mytag --restart=Never

docker pull hub.atomgit.com/amd64/nginx:1.25.2-perl

apiVersion: v1
kind: Service
metadata:
  name: my-service
  labels:
    app: nginx
spec:
  selector:
    app: nginx
  ports:
    - protocol: TCP
      port: 8018
      targetPort: 80

kubectl get svc

 kubectl get endpoints

创建PV使得NFS
apiVersion: v1
kind: PersistentVolume
metadata:
  name: example-pv
spec:
  capacity:
    storage: 1Gi
  volumeMode: Filesystem
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  nfs:
    path: /path/to/nfs/volume
    server: nfs-server-ip

创建PV使用LOCAL
storageclass_local.yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: local
provisioner: kubernetes.io/no-provisioner
volumeBindingMode: WaitForFirstConsumer

apiVersion: v1
kind: PersistentVolume
metadata:
  name: local-pv01
spec:
  capacity:
    storage: 3Gi
  volumeMode: Filesystem
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  storageClassName: local
  local:
    path: /disks/vol1                                #将本地磁盘作为目录,事先存在。
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname                #匹配的节点标签
          operator: In
          values:
          - worker                               #PV绑定的节点名称
          
在POD的第一个容器执行命令          
kubectl exec nginx02 -- date

在POD的指定容器执行命令          
kubectl exec nginx02 nginx01 -- date

kubectl exec -ti nginx02 -- /bin/bash