进入终端修改以下文件即可。
vim /opt/gitlab/embedded/service/gitlab-rails/config/gitlab.yml
## GitLab settings
gitlab:
## Web server settings (note: host is the FQDN, do not include http://)
host: localhost >> 这里改为主机的IP或域名即可
port: 80
https: false
# Uncommment this line below if your ssh host is different from HTTP/HTTPS one
# (you'd obviously need to replace ssh.host_example.com with your own host).
# Otherwise, ssh host will be set to the `host:` value above
重启GitLab
gitlab-ctl restart