1.現象

如果直接docker pull CentOS 兩個小時才down下來8M，很慢

2.解決

[root@localhost network-scripts]# cd /etc/docker
[root@localhost docker]# ls
certs.d  daemon.json  key.json  seccomp.json
[root@localhost docker]# cat daemon.json
{}
[root@localhost docker]# vi daemon.json

{
“registry-mirrors”: [“https://mj9kvemk.mirror.aliyuncs.com”]
}

重啟docker

[root@localhost docker]# service docker restart
Redirecting to /bin/systemctl restart docker.service
[root@localhost docker]#

重新拉取，秒秒鐘

[root@localhost docker]# docker pull centos
Using default tag: latest
Trying to pull repository docker.io/library/centos …
latest: Pulling from docker.io/library/centos
8ba884070f61: Pull complete
Digest: sha256:8d487d68857f5bc9595793279b33d082b03713341ddec91054382641d14db861
Status: Downloaded newer image for docker.io/centos:latest
[root@localhost docker]#

 3.驗證

[root@localhost docker]# docker images
REPOSITORY          TAG                IMAGE ID            CREATED            SIZE
docker.io/centos    latest              9f38484d220f        10 days ago        202 MB
[root@localhost docker]#