kubesphere 安装mysql

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最新推荐文章于 2025-05-13 20:24:42 发布

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分类专栏： kubsphere k8s mysql

本文链接：https://blog.youkuaiyun.com/aaaa5460/article/details/93614498

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本文详细介绍了在Kubernetes中部署MySQL 5.7的过程，包括创建秘钥、配置文件、挂载目录，以及如何通过YAML文件定义部署、资源限制和网络服务。

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1.首先建立密码的秘钥

在配置中心建立秘钥：mysql-secret

key为：MYSQL_ROOT_PASSWORD，值数据库密码

2.建立mysql的配置文件

在配置中心的配置

新建配置：mysqld

key为：mysqld.cnf

值如下：

[mysqld]
pid-file	= /var/run/mysqld/mysqld.pid
socket		= /var/run/mysqld/mysqld.sock
datadir		= /var/lib/mysql
#log-error	= /var/log/mysql/error.log
# By default we only accept connections from localhost
#bind-address	= 127.0.0.1
# Disabling symbolic-links is recommended to prevent assorted security risks
lower_case_table_names =1
max_connections=2000
max_allowed_packet=40M
log_timestamps = SYSTEM
symbolic-links=0

3.建立mysql挂载data挂载目录

在存储卷建立mysql挂载目录，存放data数据

4.在工作负载进行部署mysql5.7

下一步

挂载data目录

选择添加已有存储卷，挂载路径为：/var/lib/mysql

挂载配置文件

选择引用配置中心

其对应的yaml如下：

kind: Deployment
apiVersion: apps/v1
metadata:
  name: mysql
  namespace: base-config
  resourceVersion: '601345'
  labels:
    app: mysql
  annotations:
    deployment.kubernetes.io/revision: '16'
    kubesphere.io/isElasticReplicas: 'false'
    maxSurgePod: '2'
    minAvailablePod: '1'
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: mysql
    spec:
      volumes:
        - name: volume-daisqd
          persistentVolumeClaim:
            claimName: mysql
        - name: volume-tdb72k
          configMap:
            name: mysqld
            items:
              - key: mysqld.cnf
                path: mysqld.cnf
            defaultMode: 420
      containers:
        - name: container-e8ak1r
          image: 'mysql:5.7'
          ports:
            - name: port
              containerPort: 3306
              protocol: TCP
          env:
            - name: MYSQL_ROOT_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mysql-secret
                  key: MYSQL_ROOT_PASSWORD
          resources:
            limits:
              cpu: '8'
              memory: 16Gi
            requests:
              cpu: '4'
              memory: 8Gi
          volumeMounts:
            - name: volume-daisqd
              mountPath: /var/lib/mysql
            - name: volume-tdb72k
              mountPath: /etc/mysql/mysql.conf.d
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
          imagePullPolicy: IfNotPresent
      restartPolicy: Always
      terminationGracePeriodSeconds: 30
      dnsPolicy: ClusterFirst
      serviceAccountName: default
      serviceAccount: default
      securityContext: {}
      schedulerName: default-scheduler
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 0%
      maxSurge: 100%
  revisionHistoryLimit: 10
  progressDeadlineSeconds: 600

保存后更新后就要配置服务，就是对外围暴露端口

建立服务mysql-service