CentOS下docker ce的安装

官方链接在此：

https://docs.docker.com/ENGIne/installation/linux/docker-ce/centos/#install-docker-ce-1

首先找到已经安装的docker

yum list installed|grep docker

yum -y remove docker-ENGIne.x86_64

yum remove docker \
                  docker-common \
                  docker-selinux \
                  docker-ENGIne

yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2

yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

上面两条命令一起执行

yum install -y yum-utils device-mapper-persistent-data lvm2 && yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

如果发现上面一句执行超时,可能是墙了,试下下面一句

sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

yum install docker-ce

curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://d669dcee.m.daocloud.io

或者使用阿里的加速器修改/etc/docker/daemon.json为{ "registry-mirrors": ["https://7vm1yv9c.mirror.aliyuncs.com"]}

如果docker启动需要重启docker生效

systemctl daemon-reload  && systemctl restart docker

把docker服务启动

systemctl start docker