docker镜像仓库registry管理

1、创建registry服务

[root@master ~]# docker pull registry

[root@master ~]# docker run -d -v /opt/registry:/var/lib/registry -p 5000:5000 --restart=always --name registry registry    异常退出重启registry服务策略：restart

[root@master ~]# docker ps |grep registry

2edf4e5a1d91        registry            "/entrypoint.sh /e..."   2 weeks ago         Up 18 minutes       0.0.0.0:5000->5000/tcp   registry

Docker pull获取的镜像地址https://hub.docker.com/search/?q=&type=image，从此处获取仓库镜像。

下载和推送镜像到私有仓库，需要处理https问题

[root@master ~]# cat /etc/docker/daemon.json   配置私有仓库可信任

{

"registry-mirrors": ["http://hub-mirror.c.163.com"],

"insecure-registries":["192.168.19.132:5000"]

}

[root@master ~]#

 

2、查看镜像信息

测试，查看镜像名

[root@master ~]# curl -s -XGET localhost:5000/v2/_catalog

{"repositories":["lnmp-php","mysql","nginx","tomcat","tomcat-app"]}

[root@master ~]# curl -s -XGET localhost:5000/v2/_catalog | python -mjson.tool

{

    "repositories": [

        "lnmp-php",

        "mysql",

        "nginx",

        "tomcat",

        "tomcat-app"

    ]

}

[root@master ~]#

 测试，查看镜像tag

[root@master ~]# curl -s -XGET localhost:5000/v2/_catalog

[root@master ~]# curl -s -XGET localhost:5000/v2/lnmp-php/tags/list

{"name":"lnmp-php","tags":["base"]}

[root@master ~]# curl -s -XGET localhost:5000/v2/lnmp-php/tags/list | python -mjson.tool

{

    "name": "lnmp-php",

    "tags": [

        "base"

    ]

}

[root@master ~]#

 

测试，查看镜像 reversion

[root@master ~]# ls /opt/registry/docker/registry/v2/repositories/lnmp-php/_manifests/revisions/sha256/

88a445510f8789fc9a8f1e0f9646c985825bce5d7d66d8a60218f320691a6a93

[root@master ~]# du -sch /opt/registry/docker/registry/v2/

867M    /opt/registry/docker/registry/v2/

867M    总用量

[root@master ~]#

 

3、删除镜像信息

测试，删除镜像

删除镜像，之前需要启动删除

[root@master ~]# docker exec -it registry /bin/sh

/ # vi  /etc/docker/registry/config.yml （开启删除模式）

storage:

  delete:

    enabled: true

 

[root@master ~]# docker exec -it registry /bin/sh   删除之前查看大小

/ # du –sch

 

[root@master ~]# curl -X DELETE localhost:5000/v2/lnmp-php/manifests/sha256:88a445510f8789fc9a8f1e0f9646c985825bce5d7d66d8a60218f320691a6a93   删除镜像

[root@master ~]# docker exec -it registry /bin/sh 

/ # registry garbage-collect /etc/docker/registry/config.yml   进入容器，垃圾回收

/ # du -sch         回收之后，镜像删除             

652.1M  .

652.1M  total

 

4、清理镜像目录

[root@master ~]# curl -s -XGET localhost:5000/v2/_catalog

[root@master ~]# rm -fr /opt/registry/docker/registry/v2/repositories/lnmp-php/

 

自此，容器registry整个过程完成。