docker 运行mysql出错：The container name “mysql“ is already in use by container

docker 运行mysql出错：The container name “/mysql“ is already in use by container

[root@iZwz97bu0gr8vwt8tjijoed local]# docker run -p 3306:3306 --name mysql 
> -v /usr/local/docker/mysql/logs:/var/log/mysql 
> -v /usr/local/docker/mysql/data:/var/lib/mysql 
> -v /usr/local/docker/mysql/conf/my.cnf:/etc/mysql/mysql.conf.d/mysqld.cnf 
> -e MYSQL_ROOT_PASSWORD=123456 
> -d mysql:5.7

参数说明：

-p 3306:3306：将容器的3306端口映射到主机的3306端口
-v /usr/local/docker/mysql/logs:/var/log/mysql：将日志文件夹挂载到主机
-v /usr/local/docker/mysql/data:/var/lib/mysql：将配置文件夹挂载到主机
-e MYSQL_ROOT_PASSWORD=123456：初始化root用户的密码

执行运行命令后，报错了，它说有同名的实例在运行

docker: Error response from daemon: Conflict. The container name "/mysql" is already in use by container "f154e3d09563e7cc23307bd513ffc56dd3f78bc825908df95a4c59c043030bc1". You have to remove (or rename) that container to be able to reuse that name.

那就看看正在运行的实例有哪些：

[root@iZwz97bu0gr8vwt8tjijoed local]# docker ps -a
ConTAINER ID   IMAGE         COMMAND                  CREATED       STATUS                   PORTS                                                  NAMES
f154e3d09563   mysql:5.7     "docker-entrypoint.s…"   2 hours ago   Up 2 hours               0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   mysql
aaa672c11140   redis         "docker-entrypoint.s…"   2 hours ago   Exited (0) 2 hours ago                                                          redis
96c3bb2fb776   mysql         "docker-entrypoint.s…"   4 days ago    Exited (0) 2 hours ago                                                          mysql8.0
f209c67409c2   hello-world   "/hello"                 5 days ago    Exited (0) 5 days ago                                                           inspiring_jennings
[root@iZwz97bu0gr8vwt8th6su3Z local]# docker rm f154e3d09563

移除正在运行的那个实例：又报错了

[root@iZwz97bu0gr8vwt8tjijoed local]# docker rm f154e3d09563
Error response from daemon: You cannot remove a running container f154e3d09563e7cc23307bd513ffc56dd3f78bc825908df95a4c59c043030bc1. Stop the container before attempting removal or force remove

原因：不能删除一个正在运行中的容器，要先停止下来才能删除

[root@iZwz97bu0gr8vwt8tjijoed local]# docker stop f154e3d09563e7cc23307bd513ffc56dd3f78bc825908df95a4c59c043030bc1
f154e3d09563e7cc23307bd513ffc56dd3f78bc825908df95a4c59c043030bc1

现在再移除：

[root@iZwz97bu0gr8vwt8tjijoed local]# docker rm f154e3d09563
f154e3d09563

成功啦，现在执行运行命令就没问题了。