docker build时提示

Get https://registry-1.docker.io/v2/: read tcp 10.221.20.132:34948->3.229.227.53:443: read: connection reset by peer

方法：

[root@]# dig @114.114.114.114 registry-1.docker.io

; <<>> DiG 9.9.4-RedHat-9.9.4-61.el7 <<>> @114.114.114.114 registry-1.docker.io
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49148
;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;registry-1.docker.io.          IN      A

;; ANSWER SECTION:
registry-1.docker.io.   38      IN      A       107.23.149.57
registry-1.docker.io.   38      IN      A       54.236.165.68
registry-1.docker.io.   38      IN      A       35.169.249.115
registry-1.docker.io.   38      IN      A       34.238.187.50
registry-1.docker.io.   38      IN      A       35.153.88.109
registry-1.docker.io.   38      IN      A       34.197.211.151
registry-1.docker.io.   38      IN      A       54.85.56.253
registry-1.docker.io.   38      IN      A       3.209.182.229

;; Query time: 7 msec
;; SERVER: 114.114.114.114#53(114.114.114.114)
;; WHEN: Thu Jul 15 11:31:54 CST 2021
;; MSG SIZE  rcvd: 177

然后将前两行的ip写入/etc/hosts即可

[root@]# vi /etc/hosts

参照

https://blog.csdn.net/qq_38425719/article/details/103914029

安装Docker服务，请参照

https://www.runoob.com/docker/centos-docker-install.html