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# step 1: 安装必要的一些系统工具
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
# Step 2: 添加软件源信息
sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# Step 3
sudo sed -i 's+download.docker.com+mirrors.aliyun.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo
# Step 4: 更新并安装Docker-CE
sudo yum -y install docker-ce
# Step 4: 开启Docker服务
sudo service docker start
安装docker-Ce时提示：
linux docker 安装报错：Requires: container-selinux >= 2:2.74
执行：
yum install --setopt=obsoletes=0 \
? ?docker-ce-17.03.2.ce-1.el7.centos.x86_64 \
? ?docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch # on a new system with yum repo defined, forcing older version and ignoring obsoletes introduced by 17.06.0
可将docker安装成功
启动、关闭、查看docker服务
systemctl start docker ?
systemctl stop?docker
ps -ef |grep docker
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