解决docker私有仓库跨几个网络环境共享的问题，大体结构是各个环境分别部署registry及调度工具如k8s等，各环境registry使用阿里oss服务做为存储共享镜像，其中过程踩坑无数，总结如下。
完成后整体结构

安装Docker

yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
yum install -y docker-ce
#使用http连接仓库
mkdir -p /etc/docker
vi /etc/docker/daemon.json
{  
	"registry-mirrors": ["http://hub-mirror.c.163.com"],
	"insecure-registries":["xxx.xxx.xxx.xxx"] 
}

mkdir -p /etc/containers
vi /etc/containers/registries.conf
[registries.search]
registries = ['xxx.xxx.xxx.xxx']
[registries.insecure]
registries = ['xxx.xxx.xxx.xxx']

systemctl daemon-reload
systemctl restart docker

安装docker-compose

curl -L https://github.com/docker/compose/releases/download/1.24.1/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

安装私有仓库

docker pull registry
#使用最简单的账号密码验证
mkdir auth
yum install -y httpd-tools
htpasswd -Bbn admin 111111 > auth/passwd
vi docker-compose.yml
registry:
  restart: always
  image: registry:latest
  ports:
    - 80:5000
  volumes:
    - ./auth:/auth
  environment:
    - REGISTRY_AUTH=htpasswd
    - REGISTRY_AUTH_HTPASSWD_REALM=basic-realm
    - REGISTRY_AUTH_HTPASSWD_PATH=/auth/passwd
    - REGISTRY_STORAGE=oss
    - REGISTRY_STORAGE_OSS_ACCESSKEYID=xxxx
    - REGISTRY_STORAGE_OSS_ACCESSKEYSECRET=xxxx
    - REGISTRY_STORAGE_OSS_REGION=oss-cn-hangzhou-internal
    - REGISTRY_STORAGE_OSS_BUCKET=xxxx
	- REGISTRY_STORAGE_DELETE_ENABLED=true
   
    #启停命令
    docker-compose up -d
    docker-compose down
    docker-compose restart

	#打标签及上传镜像
	docker login xxx.xxx.xxx.xxx

    docker tag rancher/healthcheck:v0.3.8 xxx.xxx.xxx.xxx/export/healthcheck:hari-test2.0    
	docker push xxx.xxx.xxx.xxx/export/healthcheck:hari-test2.0
	
    #查询镜像
    curl -u admin:111111-X GET http://xxx.xxx.xxx.xxx/v2/_catalog
    
    #删除镜像
    curl -u admin:111111-I -X DELETE http://xxx.xxx.xxx.xxx/v2/export/healthcheck/manifests/sha256:push之后的id

其他残余文件可参考官网API参数增加或者手动到oss删除，或者通过ossfs工具，在本地删除oss里的文件。