# 查看系统内核 [root@iZwz98zi7ua638a1dxozhyZ ~]# uname -r 3.10.0-957.21.3.el7.x86_64 # 查看版本系统 [root@iZwz98zi7ua638a1dxozhyZ ~]# cat /etc/os-release NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7"
官网安装参考手册:https://docs.docker.com/engine/install/centos/
(1)yum 安装 gcc 相关环境
yum -y install gcc yum -y install gcc-c++
(2)卸载旧版本
yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-engine
(3)安装需要的软件包
yum install -y yum-utils
(4)设置镜像仓库
# 推荐使用国内的 yum-config-manager --add-repo http://mirrors.aliyun.com/docker- ce/linux/centos/docker-ce.repo
(5)更新 yum 软件包索引
yum makecache fast
(6)安装 Docker CE
yum install docker-ce docker-ce-cli containerd.io
(7)启动 Docker
systemctl start docker
(8)测试命令
docker version docker run hello-world docker images
卸载命令
systemctl stop docker yum -y remove docker-ce docker-ce-cli containerd.io rm -rf /var/lib/docker