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kubernetes deploy standalone mysql demo

news 2025/7/15 6:52:09

kubernetes 集群内部署单节点 mysql

ansible all -m shell -a "mkdir -p /mnt/mysql/data"

cat mysql-pv-pvc.yaml

apiVersion: v1
kind: PersistentVolume
metadata:name: mysql-pv-volumelabels:type: local
spec:storageClassName: manualcapacity:storage: 5GiaccessModes:- ReadWriteOncehostPath:path: "/mnt/mysql/data"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:name: mysql-pv-claim
spec:storageClassName: manualaccessModes:- ReadWriteOnceresources:requests:storage: 5Gi

cat mysql-deploy.yaml

apiVersion: v1
kind: Service
metadata:name: mysql
spec:type: NodePortports:- port: 3306nodePort: 30006targetPort: 3306protocol: TCPselector:app: mysql
---
apiVersion: apps/v1
kind: Deployment
metadata:name: mysql
spec:selector:matchLabels:app: mysqlstrategy:type: Recreatetemplate:metadata:labels:app: mysqlspec:containers:- image: mysql:5.7name: mysqlenv:# Use secret in real usage- name: MYSQL_ROOT_PASSWORDvalue: passwordports:- containerPort: 3306name: mysqlvolumeMounts:- name: mysql-persistent-storagemountPath: /var/lib/mysqlvolumes:- name: mysql-persistent-storagepersistentVolumeClaim:claimName: mysql-pv-claim

start:

kubectl apply -f mysql-pv-pvc.yaml
kubectl apply -f mysql-deploy.yaml

check

[root@kube-master01 mysql]# kubectl get pod
NAME                     READY   STATUS    RESTARTS   AGE
mysql-794c6d56c6-xnfhb   1/1     Running   0          10h
[root@kube-master01 mysql]# kubectl get svc
NAME         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)          AGE
kubernetes   ClusterIP   10.43.0.1      <none>        443/TCP          23d
mysql        NodePort    10.43.17.172   <none>        3306:30006/TCP   10h
mysql        NodePort    10.43.17.172   <none>        3306:30006/TCP   10h
[root@kube-master01 mysql]# mysql -h 192.168.23.31 -P 30006 -u root -p'password'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 15
Server version: 5.7.43 MySQL Community Server (GPL)Copyright (c) 2000, 2023, Oracle and/or its affiliates.Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> show databases-> ;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| clusterpedia       |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.05 sec)mysql>