docker安装与重装

docker安装

https://blog.csdn.net/lyqhf153/article/details/79585976 参考上面的方式

cat /etc/issueuname -r
uname -acat /proc/versiondf -hyum list docker-ce --showduplicates | sort -r 查看docker-ce的版本列表sudo yum install -y docker　没有docker-ce　就安装老版本的docker infosystemctl start docker 启动失败　https://blog.csdn.net/youjin/article/details/80015377　　启动docker失败
vim /etc/sysconfig/docker
OPTIONS='--selinux-enabled=false 改为=false
systemctl restart docker 重启

docker卸载与重装

free -h 查看内存echo 1 > /proc/sys/vm/drop_caches 释放缓存free -h卸载docker
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine安装指定版本
curl https://releases.rancher.com/install-docker/1.12.6.sh | shsudo systemctl start dockerdocker psdocker versiondocker infodocker exec -it 48 /bin/bash