配置环境:
gerrit 192.168.1.100
gitlab 192.168.1.101
1.创建秘钥
[root@gerrit ~]# ssh-keygen -m PEM -t rsa
 
2.添加hosts 解析
[root@gerrit ~]#echo "192.168.1.101 gitlab" >> /etc/hosts
 
3.确保远程系统的主机密钥已经在 Gerrit 用户的~/.ssh/known_hosts文件中。添加主机密钥的最简单方法是使用命令行手动连接一次
ssh root@gitlab
The authenticity of host 'gitlab (192.168.1.100)' can't be established.
ECDSA key fingerprint is SHA256:Ngq+dewHhDc5NY0cDGq4VoIW3TQDKuk4AV6QwciJCf0.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'gitlab' (ECDSA) to the list of known hosts.
root@gitlab's password: 
Last failed login: Sun Jun  6 12:59:06 CST 2021 from 192.168.1.100 on ssh:notty
There were 2 failed login attempts since the last successful login.
Last login: Sun Jun  6 12:57:44 2021 from 192.168.101.73
 
[root@gerrit ~]# cat .ssh/known_hosts 
gitlab ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKVuUh/ej1JAC34mA2kFYgll90OG7tEG7VST4iWZN8vDD8zPN97zlwygjzwOipFqBlHFdcFkMHCI3hUql2yBN+U=
 
4.创建config 文件
[root@gerrit ~]# vim .ssh/config
Host *
    IdentityFile ~/.ssh/id_rsa
    PreferredAuthentications publickey
 
5.创建 /opt/gerrit/etc/replication.config
[root@gerrit ~]# vim /opt/gerrit/etc/replication.config
[remote "192.168.1.101"]
   projects = gerrit_rsync
   url = git@192.168.1.101:gerrit_rsync_test/gerrit_rsync.git
   push = +refs/heads/*:refs/heads/*
   push = +refs/tags/*:refs/tags/*
   threads = 3
 
 
6.复制 .ssh/id_rsa.pub 到gitlab管理员页面
[root@gerrit ~]# cat .ssh/id_rsa.pub 
ssh-rsa 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 root@gerrit
 

 
 
7.复制 .ssh/id_rsa.pub 到gerrit管理员页面 

 
 
8.重新加载 reload replication
[root@gerrit ~]# ssh -p 29418 sunpengfei@localhost gerrit plugin reload replication #sunpengfei用户为Gerrit web 页面管理员用户,第7步添加.ssh/id_rsa.pub的地方。
 
 
9.手动同步 
ssh -p 29418 sunpengfei@localhost replication start