7. 在master节点/root目录下编写YAML文件部署MySQL服务，具体要求如下： （1）Service名称：myqsl；Deployment名称：myqsl； （2）镜像：mysql:5.7； （4）挂载一个持久卷mysql-pv，拥有2GB的存储空间，路径为/ mnt/data；

回答：

apiVersion: v1
kind: Service
metadata:
name: mysql
spec:
selector:
app: mysql
ports:
- name: mysql
port: 3306
targetPort: 3306
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
replicas: 1
template:
metadata:
labels:
app: mysql
spec:
containers:
- name: mysql
image: mysql:5.7
env:
- name: MYSQL_ROOT_PASSWORD
value: "password"
ports:
- containerPort: 3306
volumeMounts:
- name: mysql-pv
mountPath: /mnt/data
volumes:
- name: mysql-pv
persistentVolumeClaim:
claimName: mysql-pvc
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pvc
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 2Gi