k8s部署mysql主从

你可以按照以下步骤使用Kubernetes（k8s）部署MySQL主从架构：

1. 创建一个名为`mysql-pvc.yaml`的持久卷声明（PVC）文件，用于存储MySQL数据。示例文件内容如下：

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi

2. 创建一个名为`mysql-master.yaml`的MySQL主节点部署文件，示例文件内容如下：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysql-master
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mysql-master
  template:
    metadata:
      labels:
        app: mysql-master
    spec:
      containers:
        - name: mysql-master
          image: mysql:latest
          env:
            - name: MYSQL_ROOT_PASSWORD
              value: your_password
          ports:
            - containerPort: 3306
          volumeMounts:
            - name: mysql-persistent-storage
              mountPath: /var/lib/mysql
      volumes:
        - name: mysql-persistent-storage
          persistentVolumeClaim:
            claimName: mysql-pvc

请替换`your_password`为您要设置的MySQL根密码。

3. 创建一个名为`mysql-slave.yaml`的MySQL从节点部署文件，示例文件内容如下：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysql-slave
spec:
  replicas: 2
  selector:
    matchLabels:
      app: mysql-slave
  template:
    metadata:
      labels:
        app: mysql-slave
    spec:
      containers:
        - name: mysql-slave
          image: mysql:latest
          env:
            - name: MYSQL_ROOT_PASSWORD
              value: your_password
          ports:
            - containerPort: 3306
          volumeMounts:
            - name: mysql-persistent-storage
              mountPath: /var/lib/mysql
      volumes:
        - name: mysql-persistent-storage
          persistentVolumeClaim:
            claimName: mysql-pvc

4. 使用以下命令应用和创建主节点和从节点的部署：

kubectl apply -f mysql-pvc.yaml
kubectl apply -f mysql-master.yaml
kubectl apply -f mysql-slave.yaml

这样就完成了MySQL主从架构的部署。请确保您已经正确配置了Kubernetes环境，并且使用了适当的MySQL镜像和密码。