[Solved] Error response from daemon: Get “*“: x509: certificate signed by unknown authority

Environmental description

The harbor repository I built requires a domain name and https access

Error 1 is reported. When other docker environments log in to harbor

[[email protected] ~]# docker login www.harbor.wuhan.cn
Username: admin
Password: 
Error response from daemon: Get "https://www.harbor.wuhan.cn/v2/": x509: certificate signed by unknown authority

Error 2: when other docker environments pull self built harbor warehouse images

[[email protected] ~]# docker pull www.harbor.wuhan.cn/22202/[email protected]:0d9ce49958ea82a48c40a397ccc785674ec3ce1dfd4f749c3c7c7a63790a54cd
Error response from daemon: Get "https://www.harbor.wuhan.cn/v2/": x509: certificate signed by unknown authority

For these two errors, you need to transfer the generated key CP to the configuration file directory of the corresponding machine docker. The operations are as follows:

Configure HTTPS links

##harbor
[[email protected] opt]# cd /etc/docker/
[[email protected] docker]# ls
certs.d  key.json
[[email protected] docker]# cd certs.d/
[[email protected] certs.d]# ls
www.harbor.wuhan.cn
[[email protected] certs.d]# cd www.harbor.wuhan.cn/
[[email protected] www.harbor.wuhan.cn]# ls
ca.crt  www.harbor.wuhan.cn.cert  www.harbor.wuhan.cn.key
[[email protected] certs.d]# cd ..
[[email protected] certs.d]# scp -r www.harbor.wuhan.cn [email protected]:/etc/docker/certs.d/ 
[email protected]'s password: 
www.harbor.wuhan.cn.cert                                                                          100% 2126   914.9KB/s   00:00    
www.harbor.wuhan.cn.key                                                                           100% 3243     1.5MB/s   00:00    
ca.crt                                                                                             100% 2033   839.2KB/s   00:00    
[[email protected] certs.d]# 
[[email protected] certs.d]# scp -r www.harbor.wuhan.cn [email protected]:/etc/docker/certs.d/
[email protected]'s password: 
www.harbor.wuhan.cn.cert                                                                          100% 2126   845.3KB/s   00:00    
www.harbor.wuhan.cn.key                                                                           100% 3243     1.9MB/s   00:00    
ca.crt                                                                                             100% 2033     1.8MB/s   00:00    
[[email protected] certs.d]# 
[[email protected] certs.d]# 
[[email protected] certs.d]# scp -r www.harbor.wuhan.cn [email protected]:/etc/docker/certs.d/
[email protected]'s password: 
www.harbor.wuhan.cn.cert                                                                          100% 2126   227.8KB/s   00:00    
www.harbor.wuhan.cn.key                                                                           100% 3243     2.5MB/s   00:00    
ca.crt                                                                                             100% 2033     1.2MB/s   00:00 

Then restart the docker

[[email protected] opt]# systemctl restart docker
[[email protected] opt]# systemctl restart docker
[[email protected] opt]# systemctl restart docker


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