安装Docker

1、卸载旧版本

yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

2、需要的安装包

yum install -y yum-utils

3、设置镜像的仓库

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

# 阿里云仓库(推荐)
yum-config-manager \
    --add-repo \
    http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4、更新 yum 软件包索引

yum makecache fast

5、安装 Docker

yum install docker-ce docker-ce-cli containerd.io

6、启动 Docker

systemctl start docker

7、测试 Docker

docker version

卸载Docker

1、卸载依赖

yum remove docker-ce docker-ce-cli containerd.io

2、删除资源

rm  -rf  /var/lib/docker
rm  -rf  /var/lib/containerd

配置阿里云加速器

image.png

mkdir -p /etc/docker

tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://roj9ny5w.mirror.aliyuncs.com"]
}
EOF

systemctl daemon-reload

systemctl restart docker