k8s入门案例

最新推荐文章于 2024-12-16 21:22:43 发布

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1. pod

apiVersion: v1
kind: Pod
metadata:
  name: test-my-nginx
  namespace: xxx
  labels:
    app: test-nginx
spec:
  containers:
  - name: test-nginx
    image: nginx:1.19.3-alpine
    ports:
      - containerPort: 80

2. deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: test-deployment
  namespace: xxx
spec:
  selector:
    matchLabels:
      app: test-nginx
  replicas: 2
  template:
    metadata:
       labels:
         app: test-nginx
    spec:
      containers:
      - name: test-nginx
        image: nginx:1.19.3-alpine
        ports:
        - containerPort: 80

3. ReplicationController

和deployment的区别：如果该标签的pod数量多于期望值，则会被停掉，如果少于期望值，则会自动创建。

apiVersion: v1
kind: ReplicationController
metadata:
  name: test-rc
  namespace: xxx
  labels:
    app: test-nginx
spec:
  selector:
    app: test-nginx
  replicas: 2
  template:
    metadata:
       labels:
         app: test-nginx
    spec:
      containers:
      - name: test-nginx
        image: nginx:1.19.3-alpine
        ports:
        - containerPort: 80

4. service

apiVersion: v1
kind: Service
metadata:
  name: test-my-service
  namespace: xxx
spec:
  type: NodePort
  ports:
  - port: 80
    nodePort: 30001
    name: nginx-port
  selector:
    app: test-nginx