【docker学习】Docker镜像加速，设置国内源

1.在 /etc/docker/daemon.json 中写入如下内容（默认没有该文件）

vim  /etc/docker/daemon.json

2.写入下面内容,并保存退出

{
  "registry-mirrors": [
    "https://docker.mirrors.ustc.edu.cn/",
    "https://hub-mirror.c.163.com",
    "https://registry.docker-cn.com",
    "https://dockerhub.azk8s.cn",
    "https://reg-mirror.qiniu.com",
    "https://registry.docker-cn.com"
  ]
}

3.重启docker生效

sudo systemctl daemon-reload
sudo systemctl restart docker

4.使用docker info验证

5.docker启动报错

解决方案：

systemctl daemon-reload
sudo systemctl restart docker

6.安装docker报错
6.1.No Presto metadata available for docker-ce-stable

yum install docker-ce -y

6.2.Public key for docker-ce-19.03.6-3.el7.x86_64.rpm is not installed

wget https://get.docker.com/gpg
rpmkeys --import ./gpg

6.3.Delta RPMs disabled because /usr/bin/applydeltarpm not installed.

yum provides '*/applydeltarpm'
yum install deltarpm -y