CentOS 7环境下安装Docker CE

Docker分为社区版和企业版两种版本，下面演示Docker社区稳定版本的安装过程。

环境信息

CentOS 7.4

Linux 3.10.0-693.17.1.el7.x86_64

Docker CE 17.12.0.ce-1.el7.centos

安装 Docker CE

• check config

安装前对系统资源进行检查

curl https://raw.githubusercontent.com/docker/docker/master/contrib/check-config.sh > check-config.sh
bash ./check-config.sh

• Step1. 安装依赖

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

• Step2. 添加仓库

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

• Step3. 安装Docker CE

sudo yum install docker-ce

• Step4. 启用、启动Docker

sudo systemctl enable docker
sudo systemctl start docker
sudo systemctl status docker

• Step5. 运行hello-world镜像

sudo docker run hello-world

Reference

• https://docs.docker.com/engine/installation/
• https://docs.docker.com/install/linux/docker-ce/centos/
• https://download.docker.com/linux/centos/7/x86_64/stable/Packages/
• http://www.ruanyifeng.com/blog/2018/02/docker-tutorial.html