2Docker configure

## （新建）修改daemon.json

所有机器配置加速源并配置docker的启动参数使用systemd,使用systemd是官方的建议,详见 https://kubernetes.io/docs/setup/cri/
mkdir -p /etc/docker/
cat>/etc/docker/daemon.json<<EOF
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "registry-mirrors": [
      "https://fz5yth0r.mirror.aliyuncs.com",
      "https://dockerhub.mirrors.nwafu.edu.cn/",
      "https://mirror.ccs.tencentyun.com",
      "https://docker.mirrors.ustc.edu.cn/",
      "https://reg-mirror.qiniu.com",
      "http://hub-mirror.c.163.com/",
      "https://registry.docker-cn.com"
  ],
  "storage-driver": "overlay2",
  "storage-opts": [
    "overlay2.override_kernel_check=true"
  ],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m",
    "max-file": "3"
  }
}
EOF
```

## 安装好之后，启动dockerd，状态，开机启动
systemctl start docker
systemctl enable docker

or

systemctl enable --now docker

 

systemctl status docker

## 查看 docker info
[root@abcdocker ~]# docker info
Client:
 Debug Mode: false

Server:
 Containers: 1
  Running: 0
  Paused: 0
  Stopped: 1
 Images: 2
 Server Version: 19.03.11

……