1、查看系统内核版本
uname -r
2、查看Centos版本
cat /etc/redhat-release
3、yum安装gcc相关
yum -y install gcc
yum -y install gcc-c++
4、删除旧版本
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
5、安装需要的软件包
yum install -y yum -utils device-mapper-persistent-data lvm2
6、设置stable镜像仓库（阿里云）
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
cat /etc/yum.repos.d/docker-ce.repo
7、更新yum软件包索引
yum makecache fast
8、安装docker ce
yum -y install docker-ce
9、启动docker
systemctl start docker
10、设置开机自启动
systemctl enable docker
11、查询docker版本
docker version
12、配置阿里云镜像加速器
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://ixc0gkit.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
13、查看安装过的软件包
yum list installed | grep docker
14、删除安装的docker相关的软件版
yum -y remove docker-ce.x86_64
yum -y remove docker-ce-cli.x86_64
yum -y remove containerd.io.x86_64
