「k8s」- 部署应用程序示例 @20210403

MySQL

Deployment - mysql-dm.yaml:

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: mysql
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
      - name: mysql
        image: mysql:5.7
        ports:
        - containerPort: 3306
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: "123456"

Service - mysql-svc.yaml:

apiVersion: v1
kind: Service
metadata:
  name: mysql
spec:
  ports:
  - port: 3306
  selector:
    app: mysql

Tomcat

Deployment - myweb-dm.yaml:

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: myweb
spec:
  replicas: 2
  selector:
    matchLabels:
      app: myweb
  template:
    metadata:
      labels:
        app: myweb
    spec:
      containers:
      - name: myweb
        image: kubeguide/tomcat-app:v1
        ports:
        - containerPort: 8080
        env:
        - name: MYSQL_SERVICE_HOST
          value: 'mysql'
        - name: MYSQL_SERVICE_PORT
          value: '3306

Service - myweb-svc.yaml:

apiVersion: v1
kind: Service
metadata:
  name: myweb
spec:
  type: NodePort
  ports:
  - port: 8080
    nodePort: 30001
  selector:
    app: myweb

部署

#!/bin/sh

kubectl apply -f ./

参考文献

一个简单的Kubernetes应用部署示例