docker login 192.168.0.1:7888
Username: admin
Password: 
Error response from daemon: Get "https://192.168.0.1:7888/v2/": tls: failed to verify certificate: x509: certificate signed by unknown authority

修改 ~/.docker/daemon.json 添加

"insecure-registries": ["192.168.0.1:7888"]

重启 docker 然后重新登录

systemctl daemon-reload
systemctl reload docker

https://docs.docker.com/reference/cli/docker/login/