创建mysql的yaml文件

cat << eof > mysql.yaml
apiVersion: apps/v1                          # 通过kubectl explain deployment命令查看版本
kind: Deployment                             # 资源类型
metadata:name: mysql-deployment                     # 资源名称namespace: mysql                           # 指定命名空间
spec:replicas: 1                                # 控制器下的pod数selector:matchLabels:app: mysql                             # 这是控制器用来控制pod的标签template:metadata:labels:app: mysql                           # pod的标签spec:containers:- name: mysql                        # 容器名image: mysql:8.0.20                # 容器镜像env:                               # mysql环境参数- name: MYSQL_ROOT_PASSWORD        # 指定ROOT用户密码value: "@Qv110119"ports:                             # 容器暴露的端口- name: mysqlcontainerPort: 3306
#          volumeMounts:                      # 容器内的被挂载目录
#          - name: mysql-data
#            mountPath: /var/lib/mysql
#          - name: mysql-conf
#            mountPath: /etc/my.cnf
#      volumes:                               # 声明volume（宿主机目录）， name为logs-volume
#      - name: mysql-data
#        nfs:
#          server: 192.168.174.30             # nfs服务器地址
#          path: /root/nfs/mysql/data         # 共享文件路径(服务器地址)            
---
apiVersion: v1
kind: Service
metadata:name: mysql-nodeportnamespace: mysql
spec:selector:app: mysql                               # 服务通过此标签连接deployment资源来暴露端口type: NodePort                             # 服务类型：NodePortports:                                     # 不指定NodePort端口就会自动分配，(默认的取值范围是：30000-32767)- protocol: TCPport: 3306targetPort: 3306
eof

创建mysq应用：

kubectl apply -f mysql.yaml

查看pod：

[root@master mysql]# kubectl get deployment,pod,svc -n mysql
NAME                               READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/mysql-deployment   1/1     1            1           7m57s
deployment.apps/nginx              1/1     1            1           15d
​
NAME                                   READY   STATUS    RESTARTS   AGE
pod/mysql-deployment-b68b5b8bc-jps5c   1/1     Running   0          7m57s
pod/nginx-6867cdf567-phn5l             1/1     Running   1          148m
​
NAME                     TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
service/kubernetes       ClusterIP   10.96.0.1        <none>        443/TCP          15d
service/mysql-nodeport   NodePort    10.98.118.107    <none>        3306:30160/TCP   7m57s
service/nginx            NodePort    10.103.194.224   <none>        80:30105/TCP     15d

远程连接：

[root@localhost ~]# mysql -h192.168.174.30 -P30160 -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.20 MySQL Community Server - GPL
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