Ubuntu配置国内Docker Hub 镜像缓存无效

Question

问题描述

Ubuntu配置国内Docker Hub 镜像缓存无效

问题出现的平台版本及自己尝试过哪些方法

OS version：Ubuntu 18.04、Raspbian buster
按照中科大和清华镜像使用说明，以中科大镜像地址为例

对于使用 systemd 的系统（Ubuntu 16.04+、Debian 8+、CentOS 7）， 在配置文件 /etc/docker/daemon.json 中加入：
{
"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn/"]
}
重新启动 dockerd：
sudo systemctl restart docker

但是依然无效

相关代码

// 请把代码文本粘贴到下方（请勿用图片代替代码）
未添加镜像地址错误代码：

$ docker pull hello-world
Using default tag: latest
Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: TLS handshake timeout

添加镜像地址后错误代码：

$ docker pull hello-world
Using default tag: latest   
Error response from daemon: Get https://registry-1.docker.io/v2/library/hello-world/manifests/latest: Get https://auth.docker.io/token?scope=repository%3Alibrary%2Fhello-world%3Apull&service=registry.docker.io:
net/http: TLS handshake timeout

docker info：

$ docker info
Client:
 Debug Mode: false

Server:
 Containers: 2
  Running: 0
  Paused: 0
  Stopped: 2
 Images: 2
 Server Version: 19.03.1
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 894b81a4b802e4eb2a91d1ce216b8817763c29fb
 runc version: 425e105d5a03fabd737a126ad93d62a9eeede87f
 init version: fec3683
 Security Options:
  apparmor
  seccomp
   Profile: default
 Kernel Version: 5.0.0-27-generic
 Operating System: Ubuntu 18.04.3 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 8
 Total Memory: 7.642GiB
 Name: hailin-XPS-15-9560
 ID: MFEG:4FBM:PWNQ:5L5D:6EIC:4SHZ:WGHG:3YFK:HTZ3:NZUG:7KXX:XXAI
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Registry Mirrors:
  https://docker.mirrors.ustc.edu.cn/
 Live Restore Enabled: false

WARNING: No swap limit support

请问应该怎么做才能得到稳定快速的docker hub pull效果？

Answer 1

很奇怪的问题啊……

拉镜像的时候强行指定一下源呢？像这样：

docker pull docker.mirrors.ustc.edu.cn/library/hello-world:latest