k8s部署mysql集群
时间: 2023-07-28 09:09:36 浏览: 138
对于在Kubernetes上部署MySQL集群,可以使用StatefulSet和PersistentVolumeClaim来实现高可用和数据持久化。
以下是一个简单的示例,用于部署MySQL集群:
1. 创建一个存储类:
```
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: mysql-storage
provisioner: kubernetes.io/aws-ebs
parameters:
type: gp2
```
2. 创建一个PersistentVolumeClaim(PVC):
```
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pvc
spec:
accessModes:
- ReadWriteOnce
storageClassName: mysql-storage
resources:
requests:
storage: 10Gi
```
3. 创建一个ConfigMap,用于配置MySQL实例:
```
apiVersion: v1
kind: ConfigMap
metadata:
name: mysql-config
data:
my.cnf: |
[mysqld]
server-id=1
log-bin=mysql-bin
innodb_flush_log_at_trx_commit=1
sync_binlog=1
```
4. 创建一个StatefulSet,用于部署MySQL实例:
```
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: mysql
spec:
serviceName: mysql
replicas: 3
selector:
matchLabels:
app: mysql
template:
metadata:
labels:
app: mysql
spec:
containers:
- name: mysql
image: mysql:5.7
ports:
- containerPort: 3306
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-secret
key: password
configMap:
name: mysql-config
volumeClaimTemplates:
- metadata:
name: mysql-persistent-storage
spec:
accessModes:
- ReadWriteOnce
storageClassName: mysql-storage
resources:
requests:
storage: 10Gi
```
5. 创建一个Secret,用于存储MySQL的root密码:
```
apiVersion: v1
kind: Secret
metadata:
name: mysql-secret
type: Opaque
data:
password: <base64-encoded-password>
```
替换`<base64-encoded-password>`为经过base64编码的root密码。
以上配置将创建一个具有3个MySQL实例的StatefulSet,并使用PersistentVolumeClaim进行数据持久化。每个实例将使用相同的配置和密码。
请注意,上述示例仅供参考,并假设您已经正确配置了Kubernetes集群和存储类。您可能需要根据自己的环境进行调整。
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