docker安装

1. yum install -y yum-utils device-mapper-persistent-data lvm2
   yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
   yum install docker-ce docker-ce-cli containerd.io -y
   systemctl start docker && systemctl enable docker

docker加速配置

1. https://cr.console.aliyun.com支付宝登录
2. sudo mkdir -p /etc/docker
   sudo tee /etc/docker/daemon.conf <<-'EOF'
   {
   "registry-mirrors": ["自己的","https://dockerhub.azk8s.cn","http://hub-mirror.c.163.com"]
   }
   EOF
   sudo systemctl daemon-reload
   sudo systemctl restart docker

3. uname -srm   内核版本cat /etc/redhat-release系统版本

4. 摘自