为Docker配置国内镜像源(centos)

这里配置为阿里的镜像。访问阿里云官网 https://www.aliyun.com/ 登陆账号，进入管理控制台 –> 产品与服务 –> 弹性计算 –> 容器镜像服务 –> 镜像加速器，复制自己的专属加速器地址

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<- EOF 
{
  "registry-mirrors": ["https://xxxx.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

查看启动状态

[sandwich@192 docker]$ systemctl status docker
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: active (running) since Sun 2021-10-31 10:56:32 PDT; 4min 17s ago
     Docs: https://docs.docker.com
 Main PID: 29180 (dockerd)
    Tasks: 7
   Memory: 48.8M
   CGroup: /system.slice/docker.service
           └─29180 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock