目前Docker Registry已经升级到了v2，最新版的Docker已不再支持v1。Registry v2使用Go语言编写，在性能和安全性上做了很多优化，重新设计了镜像的存储格式。此文档是在v1的基础上写的，如果需要安装registry v2，只需下载registry:2.2即可，或者可以下载后面的安装脚本运行安装。
一、下载registry镜像
docker pull registry
二、启动私有仓库容器，默认情况下，会将仓库存放于容器内的/tmp/registry目录下，这样如果容器被删除，则存放于容器中的镜像也会丢失，所以我们一般情况下会指定本地一个目录挂载到容器内的/tmp/registry下
docker run -d -p 5000:5000 -v /data/docker/registry:/tmp/registry registry
三、查看启动进程
docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9dc25301d44f registry "docker-registry" 20 seconds ago Up 18 seconds 0.0.0.0:5000->5000/tcp reverent_ptolemy
四、创建镜像链接或为基础镜像打个标签
docker tag docker.io/centos6.7-base 10.44.86.222:5000/centos6.7-base
五、提交镜像到本地私有仓库中
docker push 10.44.86.222:5000/centos6.7-base
六、如果报以下错误，需要修改/etc/sysconfig/docker文件
Error response from daemon: invalid registry endpoint https://10.44.86.222:5000/v0/: unable to ping registry endpoint https://10.44.86.222:5000/v0/
v2 ping attempt failed with error: Get https://10.44.86.222:5000/v2/: EOF
v1 ping attempt failed with error: Get https://10.44.86.222:5000/v1/_ping: EOF. If this private registry supports only HTTP or HTTPS with an unknown CA certificate, please add `--insecure-registry 10.44.86.222:5000` to the daemon's arguments. In the case of HTTPS, if you have access to the registry's CA certificate, no need for the flag; simply place the CA certificate at /etc/docker/certs.d/10.44.86.222:5000/ca.crt
在/etc/sysconfig/docker文件添加以下选项：
other_args='--insecure-registry 10.44.86.222:5000 --graph=/data/docker/images'
OPTIONS='--selinux-enabled --insecure-registry 10.44.86.222:5000'
因为从docker1.3.2版本开始默认docker registry使用的是https
七、查看私有仓库是否存在对应的镜像
curl 10.44.86.222:5000/v1/search
{"num_results": 1, "query": "", "results": [{"description": "", "name": "library/centos6.7-base"}]}
本文转自aaron428 51CTO博客，原文链接：http://blog.51cto.com/aaronsa/1740747，如需转载请自行联系原作者
