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小编这次要给大家分享的是Docker私有仓库如何实现Registry部署,文章内容丰富,感兴趣的小伙伴可以来了解一下,希望大家阅读完这篇文章之后能够有所收获。
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随着docker使用的镜像越来越多,就需要有一个保存镜像的地方,这就是仓库。目前常用的两种仓库:公共仓库和私有仓库。最方便的就是使用公共仓库上传和下载,下载公共仓库的镜像是不需要注册的,但是上传时,是需要注册的。
私有仓库最常用的就是Registry、Harbor两种,那接下来详细介绍如何搭建registry私有仓库,Harbor将在下一篇博文部署。
一、部署Registry私有仓库
案例描述
两台CentOS7.4,一台为Docker私有仓库;另一台为Docker客户端,测试使用;
两台服务器都需要安装Docker服务,请参考博文:安装Docker.v19版本
1、配置registry私有仓库
[root@centos01 ~]# echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf [root@centos01 ~]# sysctl -p net.ipv4.ip_forward = 1 [root@centos01 ~]# vim /etc/docker/daemon.json {"registry-mirrors":["https://6kx4zyno.mirror.aliyuncs.com"]} [root@centos01 ~]# systemctl reload docker [root@centos01 ~]# docker search registry [root@centos01 ~]# docker run -d -p 5000:5000 --name registry --restart=always -v /opt/registry:/var/lib/registry registry [root@centos01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a7773d77b8a3 registry "/entrypoint.sh /etc…" 50 seconds ago Up 46 seconds 0.0.0.0:5000->5000/tcp registry [root@centos01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE registry latest 708bc6af7e5e 3 months ago 25.8MB tomcat latest 1b6b1fe7261e 5 days ago 647MB hub.c.163.com/public/centos 6.7-tools b2ab0ed558bb 3 years ago 602MB [root@centos01 ~]# vim /etc/docker/daemon.json {"registry-mirrors":["https://6kx4zyno.mirror.aliyuncs.com"], "insecure-registries":["192.168.100.10:5000"] } [root@centos01 ~]# systemctl reload docker
2、上传镜像到registry私有仓库
[root@centos01 ~]# docker tag hub.c.163.com/public/centos:6.7-tools 192.168.100.10:5000/image/centos:6.7 [root@centos01 ~]# docker push 192.168.100.10:5000/image/centos:6.7
二、配置Docker客户端访问私有仓库
[root@centos02 ~]# vim /etc/docker/daemon.json {"registry-mirrors":["https://6kx4zyno.mirror.aliyuncs.com"], "insecure-registries":["192.168.100.10:5000"] } [root@centos02 ~]# systemctl restart docker [root@centos02 ~]# docker pull 192.168.100.10:5000/image/centos:6.7 [root@centos02 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE 192.168.100.10:5000/image/centos 6.7 b2ab0ed558bb 3 years ago 602MB
至此registry私有仓库已经搭建完成,但是现在存在一个问题,如果这也部署的话企业内部所有人员皆可访问我们的私有仓库,为了安全起见,接下来为registry添加一个身份验证,只有通过了身份验证才可以上传或者下载私有仓库中的镜像。
三、配置registry加载身份验证
[root@centos01 ~]# yum -y install httpd-tools [root@centos01 ~]# mkdir /opt/registry-auth [root@centos01 ~]# htpasswd -Bbn bob pwd@123 > /opt/registry-auth/htpasswd [root@centos01 ~]# docker run -d -p 5000:5000 --restart=always \ -v /opt/registry-auth/:/auth/ \ -v /opt/registry:/var/lib/registry --name registry-auth -e "REGISTRY_AUTH=htpasswd" \ -e "REGISTRY_AUTH_HTPASSWD_REALM=Registry Realm" \ -e "REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd" registry [root@centos01 ~]# docker tag tomcat:latest 192.168.100.10:5000/image/tomcat:1.0 [root@centos01 ~]# docker push 192.168.100.10:5000/image/tomcat:1.0 no basic auth credentials [root@centos01 ~]# docker login 192.168.100.10:5000 Username: bob Password: ……………… Login Succeeded [root@centos01 ~]# docker push 192.168.100.10:5000/image/tomcat:1.0 The push refers to repository [192.168.100.10:5000/image/tomcat] b0ac242ce8d3: Pushed 5e71d8e4cd3d: Pushed eb4497d7dab7: Pushed bfbfe00b44fc: Pushed d39111fb2602: Pushed 155d997ed77c: Pushed 88cfc2fcd059: Pushed 760e8d95cf58: Pushed 7cc1c2d7e744: Pushed 8c02234b8605: Pushed 1.0: digest: sha256:55b41e0290d32d6888aee2e9a15f03cc88d2f49d5ad68892c54b9527d0ed181c size: 2421 [root@centos02 ~]# docker pull 192.168.100.10:5000/image/tomcat:1.0 Error response from daemon: Get http://192.168.100.10:5000/v2/image/tomcat/manifests/1.0: no basic auth credentials [root@centos02 ~]# docker login 192.168.100.10:5000 Username: bob Password: Login Succeeded [root@centos02 ~]# docker pull 192.168.100.10:5000/image/tomcat:1.0 1.0: Pulling from image/tomcat 376057ac6fa1: Pull complete 5a63a0a859d8: Pull complete 496548a8c952: Pull complete 2adae3950d4d: Pull complete 0a297eafb9ac: Pull complete 09a4142c5c9d: Pull complete 9e78d9befa39: Pull complete 18f492f90b9c: Pull complete 7834493ec6cd: Pull complete 216b2be21722: Pull complete Digest: sha256:55b41e0290d32d6888aee2e9a15f03cc88d2f49d5ad68892c54b9527d0ed181c Status: Downloaded newer image for 192.168.100.10:5000/image/tomcat:1.0 192.168.100.10:5000/image/tomcat:1.0 [root@centos02 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE 192.168.100.10:5000/image/tomcat 1.0 1b6b1fe7261e 5 days ago 647MB 192.168.100.10:5000/image/centos 6.7 b2ab0ed558bb 3 years ago 602MB
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