# 查看配置信息
cat /etc/docker/daemon.json

# 编辑配置信息
vi /etc/docker/daemon.json

# 备份配置信息
cp /etc/docker/daemon.json /etc/docker/daemon.json.bak

# 删除配置信息
rm -rf /etc/docker/daemon.json

# 创建配置目录
mkdir -p /etc/docker

# 创建配置文件
tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": [
    "https://docker.m.daocloud.io"
  ],
  "exec-opts":[
    "native.cgroupdriver=systemd"
  ],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m",
    "max-file":"3"
  },
  "insecure-registries": [
    "image.xujun.org:80"
  ],
  "storage-driver": "overlay2"
}
EOF

# 刷新配置文件
systemctl daemon-reload

# 重启Docker
systemctl restart docker

# 查看信息
docker info

# 上述配置文件有私有镜像地址,添加私有hosts
# 添加hosts映射
echo "10.0.1.5  image.xujun.org" >> /etc/hosts