解决K8S 1.18.0版本REPLICAS被弃用问题

kubectl run nginx-deploy --image=nginx:1.14-alpine --port=80 --replicas=1

Flag --replicas has been deprecated, has no effect and will be removed in the future.并创建出一个nginx-deploy的pod

kubectl get pods

kubectl delete pods nginx-deploy 

# API 版本号
apiVersion: apps/v1
# 类型，如：Pod/ReplicationController/Deployment/Service/Ingress
kind: Deployment
metadata:
  # Kind 的名称
  name: nginx-app
spec:
  selector:
    matchLabels:
      # 容器标签的名字，发布 Service 时，selector 需要和这里对应
      app: nginx
  # 部署的实例数量
  replicas: 2
  template:
    metadata:
      labels:
        app: nginx
    spec:
      # 配置容器，数组类型，说明可以配置多个容器
      containers:
      # 容器名称
      - name: nginx
        # 容器镜像
        image: nginx:1.17
        # 只有镜像不存在时，才会进行镜像拉取
        imagePullPolicy: IfNotPresent
        ports:
        # Pod 端口
        - containerPort: 80

kubectl apply -f nginx.yaml

kubectl get pods
kubectl get deployment

kubectl expose deployment nginx-app --port=80 --type=LoadBalancer

kubectl get services

http://（Master，Node）IP+端口