Linux版Docker 安装

## 删除旧版本的Docker

yum remove docker docker-client \
> docker-client-lastest \
> docker-common \
> docker-lastest \
> docker-lastest-logrotate \
> docker-logrotate \
> docker-engine


##安装yum工具包
yum install -y yum-utils


##安装镜像仓库
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo


##安装Docker指定版本
yum install -y docker-ce-20.10.7 docker-ce-cli-20.10.7 containerd.io-1.4.6



## 启动 Docker 服务
systemctl start docker


## 查看 Docker 信息
docker info


## 配置镜像加速器
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json << 'EOF'
{
  "registry-mirrors": [
    "https://82m9ar63.mirror.aliyuncs.com"
  ],
  "log-driver":"json-file",
  "log-opts": {
    "max-size":"100m"
  },
  "storage-driver":"overlay2"
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

有的时候因为网络失败，导致安装失败，一定要保证网络哇塞！！！