docker使用

yum install docker -y

systemctl enable docker

systemctl start  docker.service

service docker start

关闭防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service

拉取指定版本镜像
docker pull mysql:5.7
              
创建镜像
docker run --restart=always --name testmysql -e MYSQL_ROOT_PASSWORD=123456 -p 3306:3306 -d mysql

docker run --restart=always --name mysql57 -e MYSQL_ROOT_PASSWORD=123456 -p 3306:3306 -d 98455b9624a9

重启
systemctl restart docker



例：实时查看docker容器名为s12的最后10行日志

$ sudo docker logs -f -t --tail 10 s12


#进入容器 mysql 容器名称
docker exec -it mysql bash
#进入mysql
mysql -u root -p
#重置密码
ALTER USER ‘root‘@‘%‘ IDENTIFIED WITH mysql_native_password BY ‘123456‘;
ALTER USER ‘root‘@‘localhost‘ IDENTIFIED WITH mysql_native_password BY ‘123456‘;
flush privileges;


#重启后,在mycentos再打开/bin/bash
docker exec -ti mycentos /bin/bash