基于上一篇部署完成了企业级仓库harbor的部署，今天我们来聊聊什么是harbor的高可用
Harbor 支持基于策略的 Docker 镜像复制功能，这类似于 MySQL 的主从同步，
其可以实现不同的数据中心、不同的运行环境之间同步镜像，并提供友好的管理
界面，大大简化了实际运维中的镜像管理工作，已经有用很多互联网公司使用
harbor 搭建内网 docker 仓库的案例，并且还有实现了双向复制的案列，本文将
实现单向复制的部署：
1 1.准备机器 2 #我这边直接复用上一篇的10.0.0.110，再开一个虚机为10.0.0.111 3 10.0.0.110 harbor1 4 10.0.0.111 harbor2 5 2.更改主机名 6 #为了清晰看见，我这里做了主机名修改 7 root@ubuntu1804:~# hostnamectl set-hostname harbor1 8 root@ubuntu1804:~# hostnamectl set-hostname harbor2 9 root@harbor2:~# apt install lrzsz 10 3.安装docker 11 root@harbor2:~# bash docker-install.sh 12 4.解压缩和安装插件 13 root@harbor2:/usr/local/src# tar -xvf harbor-offline-installer-v1.7.6.tgz 14 #安装插件我这里就不多说了，在我的harbor安装有详细步骤说明 15 5.安装成功 16 [Step 4]: starting Harbor ... 17 Creating network "harbor_harbor" with the default driver 18 Creating harbor-log ... done 19 Creating harbor-adminserver ... done 20 Creating registryctl ... done 21 Creating harbor-db ... done 22 Creating registry ... done 23 Creating redis ... done 24 Creating harbor-core ... done 25 Creating harbor-portal ... done 26 Creating harbor-jobservice ... done 27 Creating nginx ... done 28 29 ✔ ----Harbor has been installed and started successfully.----
6.验证从harbor登录
7.创建一个linux项目
#和主harbor的项目名称保持一致
8.测试登录harbor2 root@harbor2:/usr/local/src/harbor# docker login 10.0.0.111 Username: admin Password: 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 root@harbor2:/usr/local/src/harbor# docker login 10.0.0.110 Username: admin Password: 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
9.点击复制管理，设置harbor的主同步策略， 主harbor和从harbor设置双向同步规则！！！
10.主harbor查看镜像同步状态
11.查看镜像是否以及被同步
12.测试可以上传和下载 #本次测试我重新开了一台机器 root@ubuntu1804:~# docker pull 10.0.0.110/linux/nginx:latest latest: Pulling from linux/nginx 45b42c59be33: Pull complete 8acc495f1d91: Pull complete ec3bd7de90d7: Pull complete 19e2441aeeab: Pull complete f5a38c5f8d4e: Pull complete 83500d851118: Pull complete Digest: sha256:b08ecc9f7997452ef24358f3e43b9c66888fadb31f3e5de22fec922975caa75a Status: Downloaded newer image for 10.0.0.110/linux/nginx:latest 10.0.0.110/linux/nginx:latest
13.现在我在客户机上传一个镜像上传到我的10.0.0.110的harbor上，查看是否会被备份在10.0.0.111的机器 root@ubuntu1804:~# docker tag mysql:latest 10.0.0.110/linux/mysql:latest root@ubuntu1804:~# docker push 10.0.0.110/linux/mysql:latest The push refers to repository [10.0.0.110/linux/mysql] c080af299e3f: Pushed ab82e085fd82: Pushed d60ed0726e37: Pushed 9577a2d5d759: Pushed d35a1217c926: Pushed 98d98806c8ac: Pushed 0394a41efa73: Pushed c484a3b6d841: Pushed 6d23902c2a54: Pushed 74c86dffd46f: Pushed ef4a33cee7a0: Pushed cb42413394c4: Pushed latest: digest: sha256:43bf7db32d11e75d8463a8bc077f09af5fb5b84b182b1d74124ddca633093bfa size: 2828
14.查看mysql镜像是否被备份
结语：本次harbor的高可用到这里全部OK！！！