查看docker mysql镜像信息
查看mysql镜像的ip
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| docker exec chai_mysql cat /etc/hosts
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进入mysql镜像命令行
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| docker exec -it chai_mysql bash
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docker run my_mysql找不到container的问题,要用start命令
问题
1. redis容器中的redis.conf访问被拒
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| sudo docker run -it -v /home/Me/docker/chai/redis-master.conf:/usr/local/etc/redis/redis.conf --name redis-master redis /bin/bash redis-server /usr/local/etc/redis/redis.conf
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2. Fatal error, can’t open config file ‘/usr/local/etc/redis/redis.conf
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| sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ac746d069659 redis "docker-entrypoint..." 8 minutes ago Up 6 minutes 6379/tcp redis-master
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| docker logs redis-master systemctl status -l docker.service
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![Docker Redis cluster]()
3. SELinux is preventing /usr/local/bin/redis-server from read access on the file redis-master.conf
都是SELinux搞的鬼,编辑/etc/sysconfig/selinux 将selinux设置为disabled之后重启就可以了。
4. error creating overlay mount to /var/lib/docker/overlay2/
参考
重新建立mysql和docker容器
上面的解决方案中清理掉了所有的docker镜像和容器
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| docker pull mysql sudo docker run --name chai_mysql -p 3306:3306 MYSQL_ROOT_PASSWORD=12345 -d mysql
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master
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| sudo docker run -it -v /home/Me/docker/chai/redis-master.conf:/usr/local/etc/redis/redis.conf --name redis-master redis /bin/bash
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slave
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| sudo docker run -it -v /home/Me/docker/chai/redis-slave.conf:/usr/local/etc/redis/redis.conf --link redis-master:master --name redis-slave redis /bin/bash
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设置开机启动
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| docker update --restart=always redis-master
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注意
- 确保master的bind是0.0.0.0
- 确保slave要link master:master
参考
Docker:创建Redis集群
redis-master.conf
redis-slave.conf