环境

告知master、slave机器都需要在安装docker、docker-compose、harbor，
然后master下载nginx镜像修改tag标签进行上传到私有仓库
尝试master-harbor远程复制slave-harbor
成功~

修改主机名、免密登录

[root@localhost ~]# hostname master
[root@localhost ~]# bash
[root@master ~]# 
[root@localhost ~]# hostname slave
[root@localhost ~]# bash
[root@slave ~]# 

master

echo '192.168.1.20 slave' >> /etc/hosts
[root@master ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:sBcmGls3wHzdl9qio/mjFuBvq1s5P4XaqHNkHypqTv4 root@master
The key's randomart image is:
+---[RSA 2048]----+
|     o.  . .   . |
|      o.. . . o  |
|    . +.=    +   |
|     =.* o  o .  |
|    o...S  o .   |
|      ..+.= .    |
|    .  ++X +     |
|   o. o.@o=      |
|   o+oEXo+oo     |
+----[SHA256]-----+
[root@master ~]# ssh-copy-id -i slave
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host 'slave (192.168.1.20)' can't be established.
ECDSA key fingerprint is SHA256:dnnDcAA2qVnA31i7mtr9LYJmH2veu2+r4t+19qUSqqw.
ECDSA key fingerprint is MD5:0e:f3:c1:3c:dc:5f:12:66:ae:c9:01:51:66:db:bb:02.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@slave's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'slave'"
and check to make sure that only the key(s) you wanted were added.
## 测试登录
[root@master ~]# ssh slave
Last login: Fri Dec 25 09:17:17 2020 from 192.168.1.250
[root@slave ~]# exit
登出
Connection to slave closed.

master、slave安装docker、harbor

yum -y install yum-utils
yum-config-manager     --add-repo     https://mirrors.ustc.edu.cn/docker-ce/linux/centos/docker-ce.repo     
yum -y install docker-ce
[root@master ~]# systemctl start docker
[root@master ~]# docker --version
Docker version 20.10.1, build 831ebea

安装docker-compose工具、harbor仓库

[root@master bin]# chmod +x docker-compose 
[root@master bin]# docker-compose -version
docker-compose version 1.25.4, build 8d51620a
[root@master ~]# tar -zxf harbor-offline-installer-v1.6.3.tgz 
[root@master ~]# cd harbor
[root@master harbor]# vi harbor.cfg 
7行 hostname = 192.168.1.10  #修改自己的ip
[root@slave harbor]# vi harbor.cfg
7行 hostname = 192.168.1.20  #修改自己的ip
[root@master harbor]# ./install.sh  ##进行安装

修改docker配置文件添加仓库地址

[root@master harbor]# vim /usr/lib/systemd/system/docker.service
     13行 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock --insecure-registry 192.168.1.10  #添加地址
[root@master harbor]# systemctl daemon-reload && systemctl restart docker

查看harbor服务状态

docker ps -a
查看是否都是正常状态
如果不是重新发布
[root@master harbor]# docker-compose down
[root@master harbor]# docker-compose up -d
测试登录
[root@master harbor]# docker login 192.168.1.10
Username: admin
Password: 默认密码Harbor12345
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded

访问

测试上传镜像

docker tag SOURCE_IMAGE[:TAG] 192.168.1.10/test/IMAGE[:TAG]
docker push 192.168.1.10/test/IMAGE[:TAG]

[root@master harbor]# docker pull nginx
[root@master harbor]# docker tag  nginx:latest 192.168.1.10/test/nginx:latest
[root@master harbor]# docker push 192.168.1.10/test/nginx:latest
The push refers to repository [192.168.1.10/test/nginx]
4eaf0ea085df: Pushed 
2c7498eef94a: Pushed 
7d2b207c2679: Pushed 
5c4e5adc71a8: Pushed 
87c8a1d8f54f: Pushed 
latest: digest: sha256:13e4551010728646aa7e1b1ac5313e04cf75d051fa441396832fcd6d600b5e71 size: 1362

页面查看

远程同步

slave的harbor仓库成功复制