k8s中部署wordpress

使用一个pod的方式在k8s中部署wordpress

wordpress至少需要的环境

• 数据库
• wordpress镜像

vi wordpress.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: wordpress
---
# 创建pod
apiVersion: v1
kind: Pod
metadata:
  name: wordpress
  namespace: wordpress
  labels:
    app: wordpress    # <==== 这里添加一个label标签，pod 向外暴露pod的service NodePort型端口需要用标签选择器。
spec:
  containers:
  - name: wordpress
    image: wordpress
    ports:
    - containerPort: 80
      name: wdport
    env:
    - name: WORDPRESS_DB_HOST
      value: 127.0.0.1:3306    # <==== 这里不能是localhost数据库的localhost默认是去找socket文件，然而在不同的容器之间文件系统是隔离的，会导致报错；
    - name: WORDPRESS_DB_USER
      value: wordpress
    - name: WORDPRESS_DB_PASSWORD
      value: wordpress
    imagePullPolicy: IfNotPresent 
  - name: mysql
    image: mysql:5.7
    imagePullPolicy: IfNotPresent
    ports:
    - containerPort: 3306
      name: dbport
    env:
    - name: MYSQL_ROOT_PASSWORD
      value: dayi123
    - name: MYSQL_DATABASE
      value: wordpress
    - name: MYSQL_USER
      value: wordpress
    - name: MYSQL_PASSWORD
      value: wordpress
    volumeMounts:
    - name: db
      mountPath: /var/lib/mysql
  volumes:
    - name: db
      hostPath:
        path: /var/lib/mysql
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: wordpress
  name: wp-svc
  namespace: wordpress
spec:
  ports:
  - port: 8081
    protocol: TCP
    targetPort: 80
  selector:
    app: wordpress
  type: NodePort

kubectl apply -f wordpress.yaml