docker19.03搭建私有容器仓库
一,启动docker后,搜索registry
[root@localhost source]# systemctl start docker [root@localhost source]# docker search registry NAME DESCRIPTION STARS OFFICIAL AUTOMATED registry The Docker Registry 2.0 implementation for s… 2873 [OK]
说明:刘宏缔的架构森林是一个专注架构的博客,
网站:https://blog.imgtouch.com
本文: https://blog.imgtouch.com/index.php/2023/05/20/docker-da-jian-si-you-rong-qi-cang-ku-docker1903/
对应的源码可以访问这里获取: https://github.com/liuhongdi/
说明:作者:刘宏缔 邮箱: 371125307@qq.com
二,下载registry容器
1,下载
[root@localhost docker]# docker pull registry
2,查看本地的镜像:
[root@localhost docker]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE registry latest 708bc6af7e5e 6 weeks ago 25.8MB
三,启动registry
1,启动registry
[root@localhost docker]# docker run -d -p 5000:5000 -v /data/docker/registry:/var/lib/registry --privileged=true --restart=always --name registry registry:latest 0e48cc6c0871bf2d5a0ee0208d3e87ae0cf4706dada93c7e80133fa22f7bbaef
[root@localhost docker]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 0e48cc6c0871 registry:latest "/entrypoint.sh /etc…" 7 seconds ago Up 5 seconds 0.0.0.0:5000->5000/tcp registry
2,查看registry的ip地址
[root@localhost docker]# docker inspect registry | grep IPAddress "SecondaryIPAddresses": null, "IPAddress": "172.17.0.2", "IPAddress": "172.17.0.2",
3,用浏览器访问5000端口,判断是否安装成功:
这个地址:
http://172.17.0.2:5000/v2/
四,查看私有库的镜像列表:
[root@localhost docker]# curl http://172.17.0.2:5000/v2/_catalog {"repositories":[]}
五,我们制作一个基于centos8的nfs的镜像
参见:
docker19.03制作一个基于centos8的带有nfs4服务的镜像:
https://blog.imgtouch.com/index.php/2023/05/20/dockerzzcentos8dynfs4fwdjxdocker-19-03/
六,上传一个镜像到私有库
我们把上面制作的镜像上传到我们搭建的私有库
1,给当前镜像打上tag:
[root@localhost ~]# docker tag nfsnginx:0.1 172.17.0.2:5000/nfsnginx:0.1
查看打tag后的效果
[root@localhost ~]# docker images | grep nfsnginx 172.17.0.2:5000/nfsnginx 0.1 fa72df9fb744 3 hours ago 328MB nfsnginx 0.1 fa72df9fb744 3 hours ago 328MB
2,开始push
[root@localhost ~]# docker push 172.17.0.2:5000/nfsnginx:0.1 The push refers to repository [172.17.0.2:5000/nfsnginx] Get https://172.17.0.2:5000/v2/: http: server gave HTTP response to HTTPS client
这个报错是什么?
Docker与Docker Registry交互默认使用https协议,
我们搭建的Docker Registry只提供http服务,
当和Registry私有仓库交互时会失败,
为解决这个问题,我们启动Docker时配置Registry不安全选项即可
说明:要用防火墙限制私有库的访问,不允许端口从公网上随便访问
3,解决上面的那个报错:
[root@localhost ~]# vi /etc/docker/daemon.json
增加一行:
"insecure-registries":["172.17.0.2:5000"]
看例子:
[root@localhost ~]# more /etc/docker/daemon.json { "registry-mirrors":["https://o3trwnyj.mirror.aliyuncs.com"], "insecure-registries":["172.17.0.2:5000"] }
然后重启docker服务:
[root@localhost ~]# systemctl restart docker
并再次启动容器
[root@localhost ~]# docker start registry
registry
4,再次push:
[root@localhost ~]# docker push 172.17.0.2:5000/nfsnginx:0.1 The push refers to repository [172.17.0.2:5000/nfsnginx] 28dd39094cf0: Pushed 0683de282177: Pushed 0.1: digest: sha256:98417504960cfd0c3ddbb61f18ac8ed7e4737136cc8640f1d24c0f8f5d4eb1fe size: 741
5,上传是否成功?我们从浏览器访问这个地址:
http://172.17.0.2:5000/v2/_catalog
响应内容为:
{"repositories":["nfsnginx"]}
可以确认已上传成功
6,查看已上传镜像的tag列表:
从浏览器访问这个地址:
http://172.17.0.2:5000/v2/nfsnginx/tags/list
说明:nfsnginx是我们所上传的镜像的名字
七,从私有库下载一个镜像
从另一台安装有docker的服务器上测试:
1,执行docker的pull命令:
[root@localhost liuhongdi]# docker pull 192.168.1.8:5000/nfsnginx:0.1 Error response from daemon: Get https://192.168.1.8:5000/v2/: http: server gave HTTP response to HTTPS client
说明:192.168.1.8是上面搭建registry的docker宿主机的ip
2,解决方法同上:
[root@localhost liuhongdi]# vi /etc/docker/daemon.json
增加一行:
"insecure-registries":["192.168.1.8:5000"]
然后重启docker:
[root@localhost liuhongdi]# systemctl restart docker
3,再次测试:
[root@localhost liuhongdi]# docker pull 192.168.1.8:5000/nfsnginx:0.1 0.1: Pulling from nfsnginx 8a29a15cefae: Already exists b3f2d668510c: Pull complete Digest: sha256:98417504960cfd0c3ddbb61f18ac8ed7e4737136cc8640f1d24c0f8f5d4eb1fe Status: Downloaded newer image for 192.168.1.8:5000/nfsnginx:0.1
4,查看下载是否成功
[root@localhost liuhongdi]# docker images | grep nfsnginx 192.168.1.8:5000/nfsnginx 0.1 fa72df9fb744 4 hours ago 328MB
八,查看docker的版本
[root@localhost source]# docker --version Docker version 19.03.7, build 7141c19