搭建个私有docker镜像仓库
公有仓库和私有仓库：
速度：公有仓库走的公网，速度较慢；私有仓库走的是内网，即局域网；
安全性：公有仓库存放在公共硬盘上；私有仓库存在自己服务器硬盘上。
公有仓：
最权威的，但速度比较慢：
首先登陆：
$ docker login -usmallsoup
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
打标签，push镜像到hub仓库：
docker tag zookeeper:3.5 smallsoup/zookeeper:3.5
docker push smallsoup/zookeeper:3.5
已push成功，可以在hub上看到：
私有仓：
用docker提供的registry在本地搭建私有仓：
docker pull registry:2.5.2
docker run -d -p 5000:5000 registry:2.5.2
docker tag zookeeper:3.5 localhost:5000/zookeeper:3.5
docker push zookeeper:3.5 localhost:5000/zookeeper:3.5
因没有设置安全性，所以直接可以push上去。
由于是本地仓库，所以pull的速度很快。
[root@localhost micro-service]# docker pull localhost:5000/zookeeper:3.5
3.5: Pulling from zookeeper
Digest: sha256:3474ec46da9db9dc27a431f9645a2df9c91d5b969f591fe0ccd4c40f2bfd1579
Status: Image is up to date for localhost:5000/zookeeper:3.5
但是这个私有仓不能满足我们的需求，生产线上万一该私有仓服务器故障，其他服务器也无法接管。再者，也没有页面可以便于管理。
业内出现的harbor，主要提供 Dcoker Registry 管理UI，可基于角色访问控制, AD/LDAP 集成，日志审核等功能，完全的支持中文，非常适用于生产环境。
harbor私有仓库搭建
github地址：
https://github.com/goharbor/harbor/releases
下载地址：
https://storage.googleapis.com/harbor-releases/harbor-offline-installer-v1.5.3.tgz
这个链接速度太慢，可以在这里下载：
以下使用的harbor版本是harbor-offline-installer-v1.5.0.tgz
首先解压：
tar -zxf harbor-offline-installer-v1.5.0.tgz
然后运行./install脚本进行安装，如果需要特殊设置，可以先修改harbor.cfg和docker-compose.yml后在进行./install安装操作
[Step 4]: starting Harbor ...
Creating network "harbor_harbor" with the default driver
Creating harbor-log ... done
Creating harbor-adminserver ...
Creating redis ... error
Creating harbor-db ...
Creating registry ...
Creating harbor-adminserver ... done
ERROR: for redis Cannot create container for service redis: b'Conflict. The container name "/redis" is already in use
Creating harbor-db ... done
Creating registry ... done
Creating harbor-ui ... done
Creating nginx ... done
ERROR: for redis Cannot create container for service redis: b'Conflict. The container name "/redis" is already in use by container "c3813d66ccad284d3529227fabf3d5c19cb991237de8d3e72fc470ffd2cbfa99". You have to remove (or rename) that container to be able to reuse that name.'
ERROR: Encountered errors while bringing up the project.
安装过程中报以上错误，是因为服务器上已经有了名为redis的容器名，和harbor将要安装的redis容器名重名，需要rename服务器上已有的redis容器名为micro-service-redis：
$ docker ps -a --filter name=redis
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3813d66ccad hub.c.163.com/public/redis:2.8.4 "/run.sh" 2 days ago Up 42 hours 0.0.0.0:6379->6379/tcp redis
$ docker rename redis micro-service-redis
$ docker ps -aq --filter name=redis
c3813d66ccad
$ docker ps -a --filter name=redis
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3813d66ccad hub.c.163.com/public/redis:2.8.4 "/run.sh" 2 days ago Up 42 hours 0.0.0.0:6379->6379/tcp micro-service-redis
然后重新执行./install
[Step 4]: starting Harbor ...
Creating network "harbor_harbor" with the default driver
Creating harbor-log ... done
Creating redis ... done
Creating harbor-db ... done
Creating harbor-adminserver ... done
Creating registry ... done
Creating harbor-ui ... done
Creating harbor-jobservice ...
Creating nginx ...
ERROR: for harbor-jobservice UnixHTTPConnectionPool(host='localhost', port=None): Read timed out. (read timeout=60)
ERROR: for nginx UnixHTTPConnectionPool(host='localhost', port=None): Read timed out. (read timeout=60)
ERROR: for jobservice UnixHTTPConnectionPool(host='localhost', port=None): Read timed out. (read timeout=60)
ERROR: for proxy UnixHTTPConnectionPool(host='localhost', port=None): Read timed out. (read timeout=60)
ERROR: An HTTP request took too long to complete. Retry with --verbose to obtain debug information.
If you encounter this issue regularly because of slow network conditions, consider setting COMPOSE_HTTP_TIMEOUT to a hig
又报以上的错，可能是由于网络问题，导致失败，重新./install试试：
[Step 4]: starting Harbor ...
Creating network "harbor_harbor" with the default driver
Creating harbor-log ... done
Creating redis ... done
Creating harbor-db ... done
Creating harbor-adminserver ... done
Creating registry ... done
Creating harbor-ui ... done
Creating nginx ... done
Creating harbor-jobservice ... done
✔ ----Harbor has been installed and started successfully.----
Now you should be able to visit the admin portal at http://hub.smallsoup.com.
For more details, please visit https://github.com/vmware/harbor .
成功了。
可以访问harbor部署服务器IP:docker-compose.yml中80映射到宿主机上的端口；
用户名是admin，密码是harbor.cfg中harbor_admin_password的值访问管理页面：
可以创建一个私有仓库micro-service：
在系统管理->用户管理中添加用户，然后点开上一步创建的项目-->>成员-->>新建成员，并设置权限。
项目管理员：有pull和push以及项目其他管理权限；
开发人员：有pull和push权限；
访客：只有pull权限。
访客：只有pul
将该项目的各个微服务image push到harbor的micro-service项目里：
$ docker images |grep -v "vmware"
REPOSITORY TAG IMAGE ID CREATED SIZE
api-gateway-zuul latest 8a814cf9bb65 23 hours ago 476MB
course-service latest 673d4501353e 23 hours ago 462MB
course-edge-service latest 854d5d8bddaa 23 hours ago 484MB
message-thrift-python-service latest 4317a76b387e 24 hours ago 926MB
user-edge-service latest ff07d54a02ba 25 hours ago 469MB
user-thrift-service latest 02dd6fd0f239 26 hours ago 456MB
python-base latest 81ad8926a9d9 26 hours ago 926MB
zookeeper 3.5 c41e1dcd86e4 2 weeks ago 128MB
smallsoup/zookeeper 3.5 c41e1dcd86e4 2 weeks ago 128MB
localhost:5000/zookeeper 3.5 c41e1dcd86e4 2 weeks ago 128MB
elasticsearch latest 5acf0e8da90b 2 weeks ago 486MB
registry 2.5.2 96ca477b7e56 3 weeks ago 37.8MB
registry 2 2e2f252f3c88 3 weeks ago 33.3MB
python 3.6 4f13b7f2138e 4 weeks ago 918MB
openjdk 8-jre 66bf39162ea7 4 weeks ago 443MB
mysql latest 6a834f03bd02 4 weeks ago 484MB
hub.c.163.com/public/redis 2.8.4 4888527e1254 2 years ago 190MB
打标签：
docker tag openjdk:8-jre 192.168.1.103:80/micro-service/openjdk:8-jre
查看镜像：
$ docker images |grep -v "vmware" | grep open
openjdk 7-jre e4c851ec3393 4 weeks ago 329MB
192.168.1.103:80/micro-service/openjdk 8-jre 66bf39162ea7 4 weeks ago 443MB
openjdk
push镜像：
$ docker push 192.168.1.103:80/micro-service/openjdk:8-jre
The push refers to repository [192.168.1.103:80/micro-service/openjdk]
Get https://192.168.1.103:80/v2/: http: server gave HTTP response to HTTPS client
push报错。由于默认采用的是http协议，即harbor.cfg中的ui_url_protocol值。https的比较麻烦，需要生成证书等步骤，可以参考：
为Harbor设置Https
http://gapme.cn/2017/10/25/harbor-ui-https/
这里暂且用http的方式。
以上报错解决办法：
在”/etc/docker/“目录下，创建”daemon.json“文件。在文件中写入：
{
"insecure-registries": [
"hub.smallsoup.com:80",
"192.168.1.103:80"
]
}
重启docker：
systemctl restart docker
docker重启后，./install或者docker-compose down;docker-compose up -d重启harbor即可。
将基础镜像和各个服务镜像push到库上：
题外话：
在安装过程中，将80端口映射到宿主机的8081端口，push的时候遇到很多问题（报错80端口连接拒绝，大概就是这个issue
https://github.com/goharbor/harbor/issues/192），查找了很多资料，还是放弃了，最后映射到宿主机80端口，push一切ok。
由于用域名的方式push得设置hosts以及端口转发，比较麻烦，以上采用了IP:PORT方式：
删除用域名打的标签：
docker rmi -f hub.smallsoup.com:80/micro-service/openjdk:8-jre
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