Catalog

One 、 newly build namespace

Two 、 newly build deployment

3、 ... and 、 newly build service

Four 、 For deployment yaml file

One 、 newly build namespace

1、 establish  namespace 
kubectl create namespace lhynamespace 

2、 see  namespace 
kubectl get namespace 

3、 Delete  namespace 
kubectl delete namespace lhynamespace

Two 、 newly build deployment

1、 Generate yaml file  
kubectl create deployment mysql8 --image=mysql:8 --dry-run -o yaml > mysql8_deployment.yaml 

2、 modify yaml file  
 Appoint  namespace 
metadata:
  namespace: lhynamespace 

3、 establish  deployment 
kubectl apply -f mysql8_deployment.yaml 

4、 see  lhynamespace  Under the namespace  deployment  
kubectl get deployment -n lhynamespace 
kubectl get deployment --all-namespaces   // View all namespace

5、 Delete  lhynamespace  Under the namespace  mysql8  Of  deployment , Delete deployment  after  pod  Automatically delete   adopt yaml Created , adopt yaml File deletion  
kubectl delete -f mysql8_deployment.yaml 
kubectl delete deployment mysql8 -n lhynamespace  // Command deletion 

3、 ... and 、 newly build service

kubectl expose -f mysql8_deployment.yaml --port=3306 --target-port=3306 --type=NodePort -n lhynamespace -o yaml > mysql8_service.yaml

 Cluster internal access port  3306

 Physical machine mapping port   You can view the generated yaml Of documents  nodePort

 It can also be based on the generated yaml  Modify the configuration and redeploy service

Four 、 For deployment yaml file

deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: mysql8
  name: mysql8
  namespace: lhynamespace  
spec:
  replicas: 2
  selector:
    matchLabels:
      app: mysql8
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: mysql8
    spec:
      containers:
      - image: mysql:8
        name: mysql8
        resources: {}
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: "123456"
        ports:
        - name: mysql-3306
          containerPort: 3306
          protocol: TCP
status: {}

service.yaml

apiVersion: v1
kind: Service
metadata:
  creationTimestamp: "2022-04-22T11:22:53Z"
  labels:
    app: mysql8
  name: mysql8
  namespace: lhynamespace
  resourceVersion: "11201"
  uid: ea56fbb1-4e20-4c4e-8990-c3859e2cb9fc
spec:
  clusterIP: 10.105.91.138
  clusterIPs:
  - 10.105.91.138
  externalTrafficPolicy: Cluster
  internalTrafficPolicy: Cluster
  ipFamilies:
  - IPv4
  ipFamilyPolicy: SingleStack
  ports:
  - nodePort: 30001
    port: 3306
    protocol: TCP
    targetPort: 3306
  selector:
    app: mysql8
  sessionAffinity: None
  type: NodePort
status:
  loadBalancer: {}