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本篇內(nèi)容介紹了“k8s啟動(dòng)mysql主從的過(guò)程”的有關(guān)知識(shí),在實(shí)際案例的操作過(guò)程中,不少人都會(huì)遇到這樣的困境,接下來(lái)就讓小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧!希望大家仔細(xì)閱讀,能夠?qū)W有所成!
啟動(dòng)兩個(gè)docker ,服務(wù)為mysql主從模式;
首先需要構(gòu)建兩個(gè)docker,使用mysql5.7的鏡像作為基礎(chǔ)鏡像
1. mysql-master Dockerfile
FROM mysql:latest RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && echo "Asia/shanghai" >> /etc/timezone COPY mysqld.cnf /etc/mysql/mysql.conf.d/mysqld.cnf COPY entrypoint.sh / COPY init-master.sh /docker-entrypoint-initdb.d/
在當(dāng)前目錄下執(zhí)行如下命令:
docker built -t mysql-master:v1.0 .
其他文件請(qǐng)參照文章末尾的GitHub鏈接地址
2. mysql-slave Dockerfile
FROM mysql:latest RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && echo "Asia/shanghai" >> /etc/timezone COPY mysqld.cnf /etc/mysql/mysql.conf.d/ COPY entrypoint.sh / COPY slave-init.sh /docker-entrypoint-initdb.d/
在當(dāng)前目錄下執(zhí)行如下命令:
docker built -t mysql-slave:v1.0 .
其他文件請(qǐng)參照文章末尾的GitHub鏈接地址
3. 執(zhí)行k8s 的yaml文件 master, 文件名:mysql-master.yaml
確保本地有 /data/mysql_data目錄
apiVersion: v1 kind: Pod metadata: name: master-tdbwv labels: name: master-tdbwv spec: volumes: - name: data hostPath: path: /data/mysql_data containers: - name: master-tdbwv image: mysql-master:v1.0 env: - name: MYSQL_ROOT_PASSWORD value: uggTKd3xsIMM - name: MYSQL_REPLICATION_USER value: repl - name: MYSQL_REPLICATION_PASSWORD value: RQfUjBff ports: - containerPort: 3306 name: master-tdbwv volumeMounts: - name: data mountPath: /var/lib/mysql resources: limits: cpu: 2 memory: 200Mi nodeName: localhost --- apiVersion: v1 kind: Service metadata: name: master-tdbwv labels: name: master-tdbwv spec: type: NodePort ports: - port: 3306 nodePort: selector: name: master-tdbwv
4. 執(zhí)行k8s 的yaml文件 slave, 文件名:mysql-slave.yaml
確保本地有 /data/mysql_slave_data目錄
apiVersion: v1 kind: Pod metadata: name: slave-ncrxq labels: name: slave-ncrxq spec: volumes: - name: data hostPath: path: /data/mysql_slave_data containers: - name: slave-ncrxq image: mysql-slave:v1.0 env: - name: MYSQL_ROOT_PASSWORD value: uggTKd3xsIMM - name: MYSQL_REPLICATION_USER value: repl - name: MYSQL_REPLICATION_PASSWORD value: RQfUjBff - name: MYSQL_MASTER_SERVICE_HOST value: 127.0.0.1 ports: - containerPort: 3306 name: slave-ncrxq volumeMounts: - name: data mountPath: /var/lib/mysql resources: limits: cpu: 2 memory: 200Mi nodeName: localhost --- apiVersion: v1 kind: Service metadata: name: slave-ncrxq labels: name: slave-ncrxq spec: type: NodePort ports: - port: 3306 nodePort: selector: name: slave-ncrxq
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